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1.1 root 1:
2: Wed Dec 21 02:46:34 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
3:
4: * Version 1.32 released.
5:
6: * toplev.c (main): Vax pcc enforces goto-less programming
7: with fatal error.
8:
9: * stmt.c (fixup_memory_subreg): New arg INSN says where to emit insns.
10: (walk_fixup_memory_subreg): Likewise. All callers changed.
11:
12: Tue Dec 20 01:26:56 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
13:
14: * c-decl.c (start_function): Don't clear TREE_PERMANENT in fn decl.
15: Make the result decl a permanent node.
16: (finish_function): Don't clear DECL_RESULT in an inline function.
17: (duplicate_decls): Don't lose DECL_RESULT or DECL_SAVED_INSNS
18: or old decl, when defn is followed by redeclaration.
19: Likewise DECL_ARGUMENTS and DECL_RESULT_TYPE.
20:
21: * stmt.c (expand_function_end): End any sequences left unterminated.
22:
23: * cse.c (predecide_loop_entry): If "loop" has no label, do nothing.
24:
25: * recog.c (asm_noperands): Now return -1 if not that kind of insn.
26: All callers changed.
27: * combine.c (check_asm_operands): Calling changes not quite trivial.
28: * final.c (final): Likewise.
29: * reload.c (find_reloads): Likewise.
30: * recog.c (asm_noperands): Other changes:
31: Loop computing # of SETs in a PARALLEL was off by 1.
32: Validate all elts of any PARALLEL, to block invalid combinations.
33:
34: * ns32k.md (andsi3, andhi3): Make new CONST_INTs; don't clobber old.
35:
36: * integrate.c (copy_rtx_and_substitute): When looking in `parm_map',
37: if our mode mismatches parm's mode, use change_address to extract part.
38: On BYTES_BIG_ENDIAN machines, adjust the offset.
39:
40: Mon Dec 19 23:50:14 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
41:
42: * cexp.y ('/' and '%' ops): If divide by 0, print error, don't die.
43:
44: Sun Dec 18 14:03:02 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
45:
46: * toplev.c (main): Avoid shadowing I in inner block.
47:
48: * flow.c (propagate_block): The insn at the end of a libcall
49: may be dead, but the libcall might still be needed if the
50: hard return reg is used later. Detect this case.
51: (libcall_dead_p): New fn used to check that the libcall is dead.
52:
53: * output-m68k.c, tm-m68k.h (standard_sun_fpa_constant_p): Fn renamed.
54:
55: Sat Dec 17 13:23:51 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
56:
57: * stmt.c (expand_end_bindings): error_with_file_and_line => ..._decl.
58:
59: * combine.o (try_combine): Accept combination making a valid
60: asm with operands.
61: (check_asm_operands): Recognize asm with operands that are valid.
62:
63: * loop.c (strength_reduce): Don't accept a reg as a giv
64: if the reg was made by loop-optimize.
65:
66: * stmt.c (balance_case_nodes): A list of 3 always splits in middle.
67:
68: Fri Dec 16 17:22:07 1988 Tiemann (rms at sugar-bombs.ai.mit.edu)
69:
70: * sparc.md (fetch from constant address): Split into two patterns,
71: one fixed point and one floating.
72: (store at constant address): Handle remembered hi-half differently.
73: Other bug fixes.
74: (fix_truncsfsi2): Use f1, not f0, as temp.
75: (fix_truncdfsi2): Don't clear CC_F1_IS_0.
76:
77: * output-sparc.c (singlemove_string): Changed handling of case
78: where op1 is not memory and op0 has varying address.
79: (output_fp_move_double): Avoid reloading high half address
80: in the ldd and std cases with constant address.
81: (make_f0_contain_0): Handle f0 and f1 individually.
82:
83: * tm-sparc.h (GO_IF_LEGITIMATE_ADDRESS): CONST is now illegitimate.
84:
85: * rtl.c (note_stores): Pass entire SET rtx, not flag, as 2nd arg to FN.
86: * local-alloc.c (reg_is_set): New type for 2nd arg.
87:
88: * Makefile: Comment out cc1plus, since not ready for release.
89:
90: Thu Dec 15 16:39:47 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
91:
92: * local-alloc.c (reg_is_set): If a hard reg is clobbered, make it free
93: before and after the insn.
94: * stupid.c (stupid_mark_refs): Likewise.
95: * global-alloc.c (global_conflicts): Likewise.
96: Use note_stores to call mark_reg_{store,clobber}.
97: (mark_reg_store): Changed calling conventions
98: All work done on set/clobbered regs is now done here.
99: Ignore CLOBBERs.
100: (mark_reg_clobber): Similar fn, but ignore SETs and handle CLOBBERs.
101: (regs_set, n_regs_set): New static vars for comm. among the above.
102:
103: * stmt.c (expand_asm_operands): call protect_from_queue on operands.
104: This requires preexpanding the outputs into a vector of rtx's.
105:
106: * Makefile (install): cd to $(libdir) before ranlib.
107:
108: * c-typeck.c (c_expand_asm_operands): emit_queue at the end.
109:
110: * reload.c (find_reloads): Count # alternatives properly for
111: an asm insn, and check that all operands correspond.
112:
113: * loop.c (verify_loop): Reject loops containg setjmps.
114: * cse.c (cse_main): Don't cse across a call to setjmp.
115:
116: * expr.c (expand_expr): Permit any non0 DECL_RTL for a VAR_DECL.
117:
118: * stmt.c (balance_case_nodes): Count ranges double when balancing.
119:
120: Wed Dec 14 13:50:45 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
121:
122: * final.c (output_addr_const): Output just `-', not `+-'.
123:
124: * make-cc1.com: Update filenames changed to `c-'.
125: * make-cccp.com: Pass needed -D options when compiling cccp.c.
126: Use /nomap when linking.
127:
128: * loop.c (strength_reduce): Paraphrase setting NEW_REG, for Iris cc.
129:
130: * output-m68k.c (output_move_const_single): %'s must be doubled twice.
131:
132: * loop.c (record_giv): A giv can be replaceable if its uses are
133: all in the same basic block as its sole setting.
134: (last_use_this_basic_block): Subroutine to test that.
135:
136: Tue Dec 13 13:41:57 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
137:
138: * expr.c (do_store_flag): Allow for COMPARISON to be a const_int.
139:
140: * c-decl.c (pushdecl): Warn if type mismatch with another external decl
141: in a global scope.
142:
143: * fixincludes: Fix typo in msg of deleting unchanged file.
144:
145: * Makefile (insn-*): Use two-step rules with a separate time-stamp file
146: to avoid rerunning gen* unless md has changed again.
147:
148: Mon Dec 12 13:32:05 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
149:
150: * i386.md (tstsf, tstdf, cmpsf, cmpdf): Use fnstsw, not fstsw. Faster.
151:
152: * tm-vax.h (ASM_OUTPUT_REG_POP): Use correct asm syntax for pop insn.
153:
154: * combine.c (subst): Handle (subreg (mem)) by making a changed mem.
155: This avoids producing any (subreg (mem))s except in the special
156: case they are supposed to be made here.
157: Also set undo_storage in a couple of cases that forgot to.
158:
159: * reload.c (push_reload): When handling (SUBREG (MEM)) for IN,
160: if there is an OUT, make that a separate reload.
161: Return its number in `output_reloadnum'
162: (find_reloads): When pushing matching-reloads, note that the
163: two operands can have different reload-numbers.
164:
165: * tm-3b1.h (ASM_OUTPUT_CASE_END): Test flag on TABLE, not its pattern.
166: (ASM_OUTPUT_CASE_LABEL): If /i flag set, don't output the dummy entry
167: since the fetcher-insn will not be off by 2 in this case.
168: * m68k.md (casesi_2 recognizer): For 3b1 syntax, compensate for that.
169:
170: Sun Dec 11 12:51:49 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
171:
172: * genrecog.c (try_merge_2): No longer put all explicit decompositions
173: before all predicates. Patterns are now tested in the order written.
174: * vax.md: Move the push-or-move-address patterns to the end.
175: * m68k.md: Move load-address pattern to end.
176: Rearrange the special-case movsi patterns.
177: * ns32k.md: Move special load-reg-17 pattern before movsi.
178: * i386.md: Move the QI and DI push patterns to logical places.
179: This should not actually change anything.
180:
181: * stmt.c: Add Andy Hitchins's binary-tree case statement code.
182: (struct case_stmt): case_list field is now a case_node chain.
183: Replace has_default field with default_label field.
184: (pushcase, pushcase_range): Build case_list in its new type,
185: and keep it sorted.
186: (expand_end_case): Use case_list in its new type.
187: Count a range of > 1 as two cases, when choosing strategy.
188: (group_case_nodes, balance_case_nodes): New fns, rearrange case_list.
189: (node_has_{low,high}_bound, node_is_bounded): New fns test
190: relationships of values of various case_list tree nodes.
191: (emit_jump_if_reachable): New fn.
192: (emit_case_nodes): Emit compares and jumps based on tree of case_list.
193:
194: * cccp.c (finclude): Handle nonordinary files (stat doesn't give size).
195:
196: * tm-3b1.h (PRINT_OPERAND_ADDRESS): Handle case of breg and no ireg.
197:
198: Sat Dec 10 16:30:32 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
199:
200: * sparc.md (movstrsi): Separate define_expand and define_insn;
201: clobber some pseudos to get temp regs to use in the output.
202: * output-sparc.c (output_block_move): Use those temp regs,
203: guaranteed to be free.
204:
205: * sparc.md (andcc patterns for bitfields from memory):
206: Test immed. arg for being in range.
207: (load DFmode constant): Use %m for output in one case.
208: * output-sparc.c (singlemove_string, output_move_double): Likewise.
209:
210: * output-sparc.c (singlemove_string): New case for mem-to-mem move.
211:
212: Fri Dec 9 11:42:15 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
213:
214: * stupid.c (stupid_mark_refs): for CLOBBER of a pseudo,
215: it is born just before this insn and dies just after.
216:
217: * tm-vax.h (NOTICE_UPDATE_CC): For aob, sob insns, forget the cc's.
218:
219: * basic-block.h (REG_BLOCK_UNKNOWN, REG_BLOCK_GLOBAL): Move defn here.
220: * local-alloc.c: Use them.
221:
222: * c-decl.c (store_parm_decls): Additional explanatory message
223: for some prototype mismatches.
224:
225: * gnulib.c (SItype): New macro used instead of `int'
226: for SImode operands and values. Definition is `long int'.
227:
228: Thu Dec 8 18:45:48 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
229:
230: * reload.c (operands_match_p): Move the label `slow' so that
231: it doesn't cause a REG and a SUBREG to be compared wrong.
232:
233: * toplev.c (compile_file): Output a label `gcc_compiled.' for GDB.
234: If new macro ASM_IDENTIFY_GCC is defined, run that instead.
235: * tm-3b1.h (ASM_IDENTIFY_GCC): Define this as no-op.
236:
237: Wed Dec 7 12:20:42 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
238:
239: * i386.md (adddf3): Typo: paren was in a constraint.
240:
241: * c-decl.c (grokparms): Avoid duplicate msgs for incomplete type ptrs.
242:
243: * gnulib.c: Rename all fns to start with `__'.
244: * optabs.c, expr.c: Rename all references.
245:
246: * gnulib.c (__cmpdi2, __ucmpdi2): New fns.
247: * optabs.c (emit_cmp_insn): Use them.
248:
249: * Makefile (stage*): Ignore errors on the main `mv' (for cc1plus).
250: Run ranlib if we have to copy gnulib.
251:
252: * expmed.c (expand_divmod): Split `label' into several local vars.
253:
254: * jump.c (jump_back_p): Do nothing unless cc's were set from integers.
255:
256: Tue Dec 6 12:00:21 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
257:
258: * c-parse.y (extend_token_buffer): Use xrealloc, not realloc.
259:
260: * integrate.c (output_inline_function): fix args of expand_function_end
261: (expand_inline_function): Add missing arg to expand_end_bindings.
262:
263: * cse.c (cse_insn): Add missing MODE arg to canon_hash.
264:
265: * reload1.c (reload_as_needed): Del. extra arg of choose_reload_targets
266: (reload): Add missing MODE arg to immediate_operand.
267:
268: * expmed.c (expand_mult): Delete extra arg to expand_unop.
269:
270: * c-typeck.c (default_conversion):
271: Add missing NOCONVERT arg to build_unary_op.
272:
273: * c-decl.c (duplicate_decls, finish_struct): Add missing arg
274: KNOWN_ALIGMENT to layout_decl.
275: * stor-layout.c (layout_record): Likewise.
276: * varasm.c (assemble_variable): Likewise.
277:
278: * dbxout.c (dbxout_init): Add missing LOCAL arg to dbxout_symbol.
279:
280: * expr.c (clear_storage): Remove excess arg to emit_move_insn.
281:
282: * loop.c (consec_sets_invariant_p): Add parens in hairy if-condition.
283:
284: * fold-const.c (fold): Typo, missing `case'.
285:
286: * cccp.c (main): Typo handling `-I-' option.
287:
288: * tm-i386.h (NO_FUNCTION_CSE): Define this; cse is said to slow
289: things down with less than 7 calls.
290:
291: * stmt.c (fixup_var_refs_insn): When scanning the reg-notes,
292: don't touch other insns they point at.
293:
294: * expr.c (do_jump): Use invert_exp, not reverse_condition,
295: to invert sense of a jump.
296: * jump.c reverse_condition now static, invert_exp now global.
297:
298: Mon Dec 5 10:51:39 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
299:
300: * tm-sun386.h (ASM_FILE_START): In the .file arg, exclude directories.
301:
302: * stmt.c (expand_expr_stmt): If -W, warn if stmt has no side effect.
303:
304: * cccp.c (monthnames): Capitalize each name.
305:
306: * rtl.def: New code MATCH_OPERATOR.
307: * genconfig.c (walk_insn_part): Handle it.
308: * genextract.c (walk_rtx): Handle it.
309: * genpeep.c (match_rtx): Handle it.
310: * genrecog.c (add_to_sequence): Handle it.
311: * genemit.c (max_operand_1, gen_exp, gen_expand): Handle it.
312: * genoutput.c (scan_operands): Handle it.
313: (insn_n_alternatives): New array in the output.
314: (struct data): New slots n_alternatives and op_n_alternatives.
315: (scan_operands, gen_insn, gen_peephole):
316: Record op_n_alternatives for each operand.
317: (output_epilogue): Verify that all operands have same # of alternatives
318: Also output insn_n_alternatives.
319:
320: * reload.c (find_reloads): use insn_n_alternatives to control
321: the loop over all alternatives.
322: An empty constraint or empty alternative in a constraint
323: is always satisfied.
324: * recog.c (constrain_operands): Likewise.
325:
326: * c-decl.c (lang_decode_option): For each -f option, recognize a form
327: with `no-' and a form without, as contraries.
328:
329: * toplev.c (main): Decode -f options using a table
330: so that each option automatically has a `no-' variant.
331:
332: * combine.c (try_combine): Give up if I1 or I2 follows a compare insn.
333:
334: Sun Dec 4 12:00:36 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
335:
336: * varasm.c (data_section): If flag_shared, use SHARED_SECTION_ASM_OP
337: if that is defined.
338:
339: * cccp.c (include_default): Add /usr/local/include.
340:
341: * Makefile (install): Install the makefile.
342:
343: * varasm.c (assemble_external): New fn to declare an external.
344: (assemble_variable): Output nothing for externals.
345: * c-parse.y (primary => identifier): Call assemble_variable on 1st use.
346:
347: * toplev.c (main): Print version info on stderr, not stdout.
348: * tm-*.h (TARGET_VERSION): Likewise.
349:
350: * tm-isi68.h, tm-news800.h: Rename __HAVE_FPU__ to __HAVE_68881__.
351:
352: * sparc.md (seq, etc): Entire page rewritten by Tiemann
353: to avoid incorrect use of PARALLEL.
354: * output-sparc.c (gen_scc_insn): Corresponding changes.
355:
356: Sat Dec 3 00:03:19 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
357:
358: * gcc.c (do_spec_1): %P is an ANSIfied form of %p:
359: put __ at beg and end of each predefined macro name.
360:
361: * tm-sun3.h (CPP_SPEC): Don't define -Dmc68010, etc., if -ansi.
362: * tm-sun2.h (CPP_SPEC): Likewise.
363:
364: * c-decl.c (shadow_tag): Don't complain if declare a new tag
365: at top level, or if redeclare a tag.
366:
367: * c-decl.c (grokparms): Warn if parm points to incomplete type.
368: (We already err if its own type is incomplete.)
369:
370: * stmt.c (fixup_var_refs_insns): Fix any (SUBREG (MEM)) in REG_NOTES.
371: (walk_fixup_memory_subreg): New subroutine used for this.
372:
373: * integrate.c (copy_rtx_and_substitute): Handle MEM refs to the middle
374: of a stack-parm--at least in the case of reading the parm.
375:
376: * rtl.c (rtx_equal_p): REG_FUNCTION_VALUE_P is significant
377: only until end of reload pass.
378: * toplev.c (rest_of_compilation):
379: Control that by setting new var rtx_equal_function_value_matters.
380:
381: * c-decl.c (init_decl_processing): Don't declare the builtins
382: that aren't really implemented.
383:
384: * output-sparc.c (output_move_double): "in structure" implies
385: 8-byte alignment only for DFmode, not for DImode.
386:
387: * final.c (output_operand_lossage): Cleaner text for error msg.
388: No longer need to write text into .s file, now that linenum is correct.
389:
390: * c-decl.c (pushdecl): -traditional stops warning
391: about "declared extern, later static".
392:
393: * c-typeck.c (build_indirect_ref): Don't handle flag_volatile here.
394: * expr.c (expand_expr): Handle it here, in INDIRECT_REF case.
395: This prevents -fvolatile from causing additional warnings.
396:
397: * output-sparc.c (output_load_address): Allow REG+REG for operands[3].
398:
399: * m68k.md (movsi): If we output the label LIn,
400: set the RTL_INTEGRATED flag in the switch table's pattern.
401: * tm-3b1.h (ASM_OUTPUT_CASE_END): Define LD%n only if LI%n was output.
402:
403: * i386.md (push-and-add pattern): Comment it out.
404: It's said to result in slower code.
405:
406: * i386.md (tstqi, tsthi, tstsi): Output real `test' insn if op is reg.
407:
408: * i386.md (push for DI): Allow `oiF' for 2nd operand.
409:
410: Fri Dec 2 13:57:35 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
411:
412: * i386.md (movdi): Allow F constraint for 2nd operand.
413:
414: * i386.md (push for QI): define pattern to push a QImode
415: which really uses pushw and therefore really pushes a halfword.
416: * tm-i386.h (PUSH_ROUNDING): Round up to multiple of 2.
417:
418: * gcc.c (do_spec_1): Handle %e, which means report an error.
419: Use it to prohibit -pg with -fomit-frame-pointer.
420:
421: * tree.h (DECL_RESULT_TYPE): New field in FUNCTION_DECL holds the type
422: of the widened returned value (not nec. the declared return type).
423: * c-decl.c (start_function): Set DECL_RESULT_TYPE.
424: * integrate.c (expan_inline_function): Use that, not DECL_RESULT.
425:
426: Thu Dec 1 16:44:10 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
427:
428: * cse.c (fold_rtx): When reordering constant args, insist on
429: manifest constants; regs with known contents won't do.
430:
431: * i386.md (mulsi3): Don't use rtx_equal_p to compare regs.
432:
433: * expr.c (move_by_pieces_1): Don't call change_address
434: if address is autoinc, since that may not be memory_address_p.
435: Subroutine-macro add_offset deleted.
436:
437: * optabs.c (bcc_gen_fctn, setcc_gen_fctn): Moved to this file.
438: (init_optabs): Init those tables here.
439: * expr.c (init_conditions): Not here.
440:
441: * stmt.c (assign_stack_local): Make a list of all stack slots.
442: * emit-rtl.c (unshare_all_rtl): Unshare all the stack slots.
443:
444: * final.c (final): Handle BARRIER with ASM_OUTPUT_ALIGN_CODE.
445: * tm-ns32k.h (ASM_OUTPUT_ALIGN_CODE): Align to 4-byte bdry.
446: ?? * tm-sequent.h (ASM_OUTPUT_ALIGN_CODE): Override: just 2-byte bdry.
447:
448: * tm-m68k.h (PRINT_OPERAND): use new macros to print floats.
449: (ASM_OUTPUT_FLOAT_OPERAND): New macro.
450: (ASM_OUTPUT_DOUBLE_OPERAND): New macro.
451: * tm-sun3.h: Override those macros, to check for infinities.
452:
453: Wed Nov 30 06:35:47 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
454:
455: * tm-ns32k.h (FUNCTION_{PRO,EPI}LOGUE): if no frame pointer,
456: do explicit push or pop insns.
457:
458: * tm-genix.h (PRINT_OPERAND): Fix typo `file'.
459: Extedn decl for paren_base_reg_printed.
460: (MAIN_FUNCTION_PROLOGUE): Deleted.
461: (ASM_OUTPUT_EXTERNAL): Defined.
462:
463: * c-parse.y (yyerror): Better error msg for unprintable char in token.
464: (primary => identifier): Set TREE_USED if implicit decl made.
465:
466: * Makefile (cleanlinks): New target.
467: (INSTALL): New variable, has program used for installing files in sys.
468:
469: * output-ns32k.c (print_operand_address): If addr is sum of 2 consts,
470: output ADDR first, then OFFSET.
471:
472: * ns32k.md (addsi3): Allow adding const+reg with result in another reg.
473:
474: * tm-seq386.h (FUNCTION_PROFILER): Provide overriding definition.
475:
476: * tm-hp9k320.h: Alternate ASM_SPEC if using GAS.
477: Define STANDARD_STARTFILE_PREFIX if using GAS.
478: (FUNCTION_PROLOGUE): on 68020 for big stack frame use link.l.
479:
480: * gcc.c (STANDARD_STARTFILE_PREFIX): New cust. macro replaces `/lib/'.
481:
482: * va-sparc.h, va-spur.h: Prefix non-interface identifiers with `__'.
483:
484: * optabs.c (init_optabs): Don't set up libcalls for ftrunc_optab
485: because (1) they aren't supported and (2) they are never used.
486:
487: * gnulib.c (__builtin_saveregs): If not sparc, define the symbol anyway
488: to avoid a warning in ranlib.
489:
490: Mon Nov 28 01:46:12 1988 Michael Tiemann (mdt at choctaw)
491:
492: * c-parse.y (yylex): Typo, `=' for `==' making wide strings.
493:
494: * sparc.md (various places): make sure that all patterns which store
495: can store using const0_rtx (i.e., make all operands to `st' %rx).
496:
497: * output-sparc.c (various places): changed dispatches on SYMBOL_REF
498: to dispatches on CONSTANT_ADDRESS_P since we now recognize any CONST
499: (and not just SYMBOL_REFs). Don't recognize special case CONST for
500: output_block_move. Compiler doesn't have enough information to use
501: it.
502:
503: * stmt.c (expand_fixup): If the control stack is nested within the
504: nesting stack, then no fixup is needed. Otherwise, compiler must
505: check for possible fixups between the current nesting stack and the
506: nesting stack that immediately contains the control stack.
507:
508: * stmt.c (expand_function_start): functions which are nested use
509: DECL_CONTEXT. For these functions, test that their DECL_CONTEXT is
510: a LET_STMT node.
511:
512: * tree.h: declare `build_offset_type'.
513:
514: Sun Nov 27 10:34:53 1988 Richard Stallman (mdt at yahi)
515:
516: * output-sparc.c (output_move_double):
517: Don't try to use ldd/std if OP1 is a constant.
518: * sparc.md (movdi): Allow immediate args moved into general regs.
519:
520: * c-decl.c (grokparms): Reject incomplete parm types even if just
521: declarating, not defining. Change types to error_mark_node
522: in both the PARM_DECL and the list of types.
523:
524: * dbxout.c (dbxout_type): It's not a bug if a RECORD_TYPE
525: has a typedef as its TYPE_NAME. That happens in C++.
526:
527: * Make each `asm' with operands record its source file/line
528: with reg-notes. It doesn't work to emit a special note before the insn
529: because the insn can be moved by loop_optimize.
530: * stmt.c (expand_asm_operands): New args FILENAME, LINE.
531: Record them in the insn, in reg notes.
532: * c-typeck.c (c_expand_asm_operands): New args, passed along.
533: * c-parse.y: Pass those args.
534: (maybe_type_qual): Line #s for asm stmts emitted like all others.
535: * rtl.h (REG_ASM_FILE, REG_ASM_LINE): New kinds of reg notes.
536: * toplev.c (error_for_asm): Get the info from those notes.
537:
538: * reload.c (find_reloads): Don't clear BADOP for a reg letter
539: if the alternative ultimately doesn't allow any regs.
540:
541: * reload.c (find_reloads): If an `asm' insn gets an error,
542: change it to a USE to avoid duplicate error msgs or later trouble.
543:
544: * reload.c (find_reloads_address): Reloading a constant address,
545: specify Pmode as the mode for push_reloads, in case of CONST_INT.
546:
547: * expr.c (emit_push_insn): Fix calc. of space needed when PARTIAL > 0.
548: Both scalar case and BLKmode case needed fixing.
549:
550: * sparc.md (load/store constant address):
551: Moving DF from mem to cpu regs, don't go via %f0.
552: Don't use std/ltd if alignment is wrong or uncertain.
553:
554: Sun Nov 27 10:34:53 1988 Michael Tiemann (mdt at yahi)
555:
556: * reload.c (push_reload): Allow VOIDmode for INMODE, OUTMODE;
557: default the mode from the operand values.
558:
559: * sparc.md: remove patterns which generate annulled branch insns.
560: They are correct, but those insns confuse GDB.
561:
562: * tm-sparc.h (GO_IF_LEGITIMATE_ADDRESS):
563: Treat any constant address like a SYMBOL_REF.
564: * sparc.md: Check for CONSTANT_ADDRESS_P rather than SYMBOL_REF.
565:
566: * sparc.md: Peepholes now accept SYMBOL_REF addresses.
567: The output routine can now split them properly even as delay insns.
568:
569: * print-tree.c (dump): added entry for METHOD_TYPE and
570: METHOD_CALL_EXPR. Also added entry for WITH_CLEANUP_EXPR. Suggest
571: that we make first_rtl of WITH_CLEANUP_EXPR 2 instead of 1.
572:
573: Sun Nov 27 00:15:33 1988 Michael Tiemann (mdt at yahi)
574:
575: * print-tree.c (dump): added entry for OP_IDENTIFIER.
576:
577: * tree.c (build_op_identifier): new function. Needed because
578: `build_nt' expects an "e" node, but OP_IDENTIFIER is an "x" node.
579:
580: * store_layout.c (layout_record): use DECL_FIELD_CONTEXT instead of
581: DECL_CONTEXT.
582:
583: * tree.h (DECL_FIELD_CONTEXT): new macro. Points to the type that a
584: FIELD_DECL is a member of. For C, this is just DECL_CONTEXT.
585:
586: * tree.c (build_method_type): typo used "==" to assign basetype to
587: TYPE_METHOD_BASETYPE with predictably poor results.
588:
589: Sat Nov 26 22:55:32 1988 Michael Tiemann (mdt at yahi)
590:
591: * output-sparc.c (output_sized_memop): new function to output a load
592: or store insn based on the size of the operand loaded or stored.
593: (make_f0_contain_0): use info from condition codes to decide whether
594: the register %f0 needs to have 0 loaded from memory or not in order
595: to contain zero.
596: (gen_scc_insn): new function used by define_expands for
597: set-on-condition-code insns.
598: (output_delay_insn): now knows how to handle load and store
599: scheduling when the load or store operation takes two insns instead
600: of one. The rewrite is now understands is this:
601:
602: sethi %hi(address),%g1 -> sethi %hi(address),%g1
603: ld/st [%g1+%lo(address)],%reg -> b target
604: b target -> ld/st [%g1+%lo(address)],%reg
605: nop -> ;; gone
606:
607: * jump.c (reverse_condition): make this function publicly visible,
608: now needed in expr.c.
609:
610: * output-sparc.c (reg_or_0_operand): new function, returns nonzero
611: if operand is const0_rtx or a register of specified mode.
612: (hardreg): deleted.
613:
614: * expr.c, stmt.c: fixed random syntax errors.
615:
616: * tree.c (build_method_type): now corresponds to defn in tree.def
617: expr.c (expand_call): removed code to get FUNCTION_TYPE from
618: METHOD_TYPE. This should probably be looked at harder.
619:
620: * tree.def (METHOD_TYPE): Changed definition so that TREE_TYPE (m)
621: (where m is a METHOD_TYPE) is the type of the return value of the
622: method, not the FUNCTION_TYPE from which the METHOD_TYPE is derived.
623:
624: * Makefile: Changed target of BINDIR from /usr/local to
625: /usr/local/bin.
626:
627: Sat Nov 26 16:29:22 1988 Michael Tiemann (mdt at chickasaw)
628:
629: * tm-sparc.h (GO_IF_LEGITIMATE_ADDRESS): Allow any SYMBOL_REF.
630: (NOTICE_UPDATE_CC): Remember high half of %g1 as a "condition code"
631: to avoid reloading it if it does not change.
632: (NOTICE_UPDATE_CC): Test SET_SRC, not SET_DEST, for a CALL rtx.
633: (PRINT_OPERAND): New code-letter `m' says output operand as an address.
634:
635: * toplev.c (flag_syntax_only): New flag variable.
636: * flags.h: Likewise.
637:
638: * toplev.c (error_with_decl): Extra arg, passed to fprintf.
639: (warning_with_decl): Likewise.
640:
641: * tree.c (build_offset_type): New function.
642:
643: * tree.h (TYPE_METHOD_BASETYPE): New name for TYPE_METHOD_CLASS.
644: Uses in tree.c and... renamed.
645:
646: * combine.c (SUBST_INT): New macro, for replacing an int.
647: (subst): Collapse nested SUBREGs even if SUBREG_WORDs are not 0.
648:
649: * expr.c (bcc_gen_fctn, setcc_gen_fctn): new tables,
650: initialized in init_comparisons.
651: Used in expand_expr, do_jump, do_store_flag
652: instead of explicit construction of a jump.
653:
654: * expr.c (save_noncopied_parts): New function.
655:
656: * expr.c (expand_expr):
657: ARRAY_REF: Special case for array of constants.
658: WITH_CLEANUP_EXPR: Handle it.
659: INIT_EXPR: Case deleted.
660: MODIFY_EXPR: Use save_noncopied_parts.
661:
662: * expr.c (expand_call): blkmode_parms_forced can be >0
663: even when no stack arg space otherwise needed.
664: Don't use a hard reg as a target if there are cleanups.
665:
666: * stmt.c (struct block): New elt. outer_cleanups.
667: (struct case): New elt. num_ranges.
668: (struct fixup): Changed meaning of cleanup_list_list.
669: Changes in expand_fixup, fixup_gotos.
670: (expand_fixup): Detect some internal forward-jumps
671: that need no fixups--for speed.
672: (fixup_gotos): New arg THISBLOCK.
673: (expand_expr_stmt): Handle flag_syntax_only.
674: (use_variable): No longer static.
675: (use_variable_after): new fn.
676: (expand_end_bindings): handle cleanups like a stack level.
677: (expand_decl): Handle a cleanup with no decl.
678: (move_cleanups_up): Preserve relative order of cleanups.
679: (expand_anon_union_decl): New fn.
680: (pushcase): New fast clause if no ranges yet.
681: (pushcase_range): Turned on.
682: (expand_function_start): New temp var `fntype'.
683: Set TREE_USED for a parm we are ignoring.
684: (expand_function_end): Really use the `filename' arg.
685: Use use_variable_after for SAVE_EXPR regs.
686:
687: * dbxout.c (dbxout_type): Handle OFFSET_TYPE.
688:
689: * gnulib.c (__builtin_new, etc.): Support for C++.
690:
691: * emit-rtl.c (next_insn, prev_insn): New fns.
692:
693: Sat Nov 26 16:29:22 1988 Richard Stallman (mdt at chickasaw)
694:
695: * tree.h (TREE_LANG_FLAG_[1234]): New attributes.
696: (TYPE_METHOD_BASETYPE): New name for TYPE_METHOD_CLASS.
697: (TYPE_OFFSET_BASETYPE): New macro.
698: (NUM_TREE_CODE): New macro.
699: (TYPE_NONCOPIED_PARTS): new field in a type-node.
700:
701: * varasm.c (make_decl_rtl): Split out from assemble_variable.
702: (assemble_variable): No longer creates the rtl.
703: No longer handles policy of whether to output tentative decl yet.
704: (output_constant_def): Don't lose if wasn't temp allocation
705: when this was called.
706: (output_constant): Handle REFERENCE_EXPR.
707:
708: * Makefile (BISONFLAGS): new variable.
709: (prefix): New variable, used in bindir and libdir.
710: (C_OBJS, CPLUS_OBJS): New vars, split off from OBJS.
711: (LIBFUNCS): C++ support functions added.
712: (CPLUS_TREE_H): New variable.
713: (cc1plus): New target.
714: (lang_c, lang_cplus): Combines all targets for one language.
715: (gplus.info): New target.
716: (cplus-*.o): New targets.
717: (realclean): Handle new C++ files and recent renamings.
718: (install, TAGS): Likewise.
719:
720: * print-tree.c (prtypeinfo): Handle TREE_LANG_FLAG_[1-4].
721:
722: * tm-sparc.h (ASM_OUTPUT_DOUBLE): Special case for infinity.
723: (ASM_OUTPUT_FLOAT): Likewise.
724:
725: * gcc.c: Don't define __GNU__.
726: For .cc files, pass -+ to cpp, and don't handle -ansi.
727: Use cc1plus as name of compiler for .cc files.
728:
729: * stor-layout.c (layout_type): abort if given a LANG_TYPE node.
730: (layout_union): Complain if union has basetypes or static members.
731: (layout_record): Handle anonymous union members.
732:
733: * tree.def (LANG_TYPE): New tree code for language-specific purposes.
734: (WITH_CLEANUP_EXPR): New tree code for expressions whose values
735: need to be cleaned up when they are deallocated.
736: (OP_IDENTIFIER): New tree code for certain C++ purposes.
737:
738: * toplev.c (rest_of_decl_compilation): Call make_var_rtl
739: before assemble_variable.
740:
741: Wed Nov 23 02:15:45 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
742:
743: * xm-sunos4.h: Rename included config files to xm-*.
744: * xm-*.h: Likewise.
745:
746: * fixincludes: Avoid altering args to names other than CTRL
747: that end in ...CTRL.
748: If a file isn't actually changed, delete the copy.
749:
750: Mon Nov 21 12:48:22 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
751:
752: * loop.c (move_movables): Never move a reg w/ # > old_max_reg.
753: (strength_reduce): For nonreplaceable giv, put insn to load it
754: after the insn that used to compute it, in case the latter
755: is the last of a libcall sequence.
756:
757: * stmt.c (expand_function_end): If returning BLKmode, also copy
758: address where value is returned to the place that GDB will
759: expect to see it after the return.
760:
761: * c-parse.y (readescape): Warn about hex constant out of range
762: for a target integer.
763: (yylex): Warn about escape out of range for non-wide char or string.
764: Use a buffer of ints to read a wide string.
765:
766: Sat Nov 19 02:18:02 1988 Richard Stallman (rms at apple-gunkies.ai.mit.edu)
767:
768: * Version 1.31 released.
769:
770: * sparc.md: Change `K' to `I' in all constraints.
771:
772: * loop.c (gen_iv_mult): Handle TARGET==0.
773:
774: * c-decl.c (duplicate_decls): Undo last change.
775:
776: * c-decl.c (pushdecl): Instead of that change,
777: save old-decl's file/line before calling duplicate_decls,
778: and pass them later to warning_with_file_and_line.
779: * toplev.c (warning_with_file_and_line): New fn.
780:
781: Fri Nov 18 13:07:06 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
782:
783: * stmt.c (fixup_var_refs_1): (SUBREG (MEM)) was slipping through
784: in case where a SET was writing in the variable being fixed.
785:
786: * recog.c (register_operand, nonmemory_operand, memory_operand):
787: Changes to handle new var reload_completed: 1 means that
788: (SUBREG (MEM)) now counts as a mem-ref, since alter_subreg
789: will make it one.
790: * toplev.c (rest_of_compilation): Set and clear reload_completed.
791:
792: * sparc.md (call patterns): If TARGET_SUN_ASM, and address in reg,
793: output a jmpl rather than a call.
794: * tm-sun4os3.h: Like tm-sparc.h but turn on TARGET_SUN_ASM.
795:
796: * reload.c (push_reloads): Reinstate handling of reg_equiv_constant.
797:
798: Thu Nov 17 09:48:14 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
799:
800: * reload1.c (constraint_accepts_reg_p): Name changed from
801: constraint_all_regs_p; new arg is reg we are concerned with,
802: and condition tested takes some advantage of that reg.
803:
804: * gcc.c (main): Rename var `error' to `error_count' for name conflict.
805:
806: * emit-rtl.c (emit_note): Output line #s even if no debug info wanted.
807: (emit_line_note): New fn, does what emit_note did.
808: (emit_line_note_force): New name for emit_note_force.
809: * stmt.c, c-parse.y: Call emit_line_note instead of emit_note.
810:
811: * c-parse.y (maybe_type_qual): Call emit_note instead of emit_line_note
812: Now we can find the line # of every `asm' from the RTL.
813: * toplev.c (error_for_asm): New fn, gets line # by searching for NOTE.
814: * reload.c (find_reloads): Use error_for_asm.
815: * reload1.c (choose_reload_targets): Likewise.
816: * final.c (output_operand_lossage): Likewise.
817: Variable this_is_asm_operands is now current insn if it's nonzero.
818:
819: * loop.c (move_movables): When a reg is moved, update regno_first_uid
820: and regno_last_uid; say life span includes entire loop.
821: * Decrement THRESHOLD per reg moved, not per insn moved.
822:
823: Wed Nov 16 08:41:32 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
824:
825: * gnulib.c (___builtin_saveregs): New fn, for sparc.
826:
827: * tm-sparc.h (GO_IF_LEGITIMATE_ADDRESS): Don't recognize
828: SYMBOL_REFs, except for the constants pool.
829: But do recognize REG+REG and SMALLINT+REG.
830: * sparc.md: New patterns for fetching and storing memory
831: whose address is symbolic and not "legitimate".
832:
833: * sparc.md (movsi): Add `f' to op1 constraint.
834: New output clause for result in fp reg.
835: (Floating point fetch patterns): Output sethi insns.
836: (call_value, related patterns): value-register has `register_operand'.
837:
838: * output-sparc.c (hardreg): New function.
839: (COMPATIBLE): Clause added for n_regs == 2.
840: (single_insn_src_p): Return 0 for MEM whose address is absolute.
841:
842: * tm-genix.h (GO_IF_LEGITIMATE_ADDRESS subroutines):
843: Redefine, to exclude any possibility of SB-referencing addresses.
844:
845: * loop.c (strength_reduce): Can't eliminate a biv if used before
846: start of the loop. Used before is same as used after, if contained
847: in another loop.
848:
849: * recog.c (asm_noperands, decode_asm_operands):
850: Handle case of no outputs, but some clobbers.
851: * stmt.c (expand_asm_operands): Generate right stuff for that case.
852:
853: * tm-sun3.h (CPP_SPEC): Don't define __HAVE_68881__ if using fpa.
854:
855: Tue Nov 15 00:10:26 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
856:
857: * loop.c (gen_iv_mult): Arg OP0 may not be a constant.
858: Pay attention to return value of expand_mult.
859: (eliminate_biv): Call changed.
860:
861: * output-m88k.c, output-sparc.c (output_move_double):
862: Fix typo `optype0' for `optype1'.
863:
864: * c-decl.c (duplicate_decls): Don't alter file, line of old decl.
865:
866: * c-parse.y (skip_white_space): Don't recognize comments; rely on cpp.
867:
868: * rtl.c (rtx_equal_p): Handle vectors.
869:
870: * loop.c (scan_loop): Change elts of n_times_set back to positive
871: for candidates that weren't moved, before doing strength reduction.
872:
873: * ns32k.md (movdi, movdf): Use `&' constraint for first operand.
874:
875: * reload1.c (reload): Initialize spill_indirect_ok here.
876:
877: * config-sun4.h: Recognize `-static' switch.
878:
879: * global-alloc.c (set_preference): Avoid using nonsense hard reg #s
880: that result from adding OFFSET.
881:
882: * sdbout.c (sdbout_end_function): Line # in .ef should be relative.
883:
884: * final.c (output_source_line): For SDB, don't output negative #s.
885:
886: * tm-encore.h (ASM_OUTPUT_LOCAL): Don't ignore SIZE arg.
887:
888: Mon Nov 14 11:03:16 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
889:
890: * reload.c: Don't declare refers_to_regno_p.
891:
892: * gcc.c (main): Warn if any input files are for the linker
893: but the linker is not being run.
894:
895: * jump.c (sets_cc0_p): Dumb bug fetching elts of a PARALLEL.
896:
897: * local-alloc.c: qty_birth, qty_death elements are now -1, not 0,
898: when the value is not known.
899:
900: * expmed.c (extract_bit_field): Bug computing xbitpos, xoffset
901: when changing units from bytes to words.
902:
903: * loop.c: Rename `times_used' field in `struct movable' to `savings'.
904: (scan_loop): When scanning the consecutive sets, for each libcall,
905: increment `savings'--leave `consec'.
906: When making movable for (SET (REG) 0) which is part of zero-extension,
907: set `savings' to 1 initially, since only 1 insn will be moved.
908: And don't let any other reg force that insn.
909: Reduce initial THRESHOLDs.
910: (move_movables): Don't add `consec' into `savings'
911: since the initial `savings' was proportional to `consec'.
912: Decrement THRESHOLD by 3 (not 2) for each move done.
913:
914: * reload1.c (choose_reload_targets): Strip subregs from OLD
915: before writing the output-reload move-insn.
916:
917: * reload1.c (reload): counted_for_groups and counted_for_nongroups
918: are now file-scope. Update them both when spilling.
919: (new_spill_reg): No need for counted_for_nongroups as arg.
920: (choose_reload_targets): Don't use for a group
921: any spill regs for which counted_for_nongroups is set.
922:
923: * dbxout.c (dbxout_symbol): Indirect-symbol case checked erroneously
924: for PARM_DECL.
925:
926: Sun Nov 13 08:13:49 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
927:
928: * cse.c (fold_rtx): Don't alter MULT by -1 if arg mode != result mode.
929:
930: * loop.c (move_movables): If moving a CALL_INSN, make a new CALL_INSN.
931: * emit-rtl.c (emit_call_insn_before): New fn.
932:
933: * config-sun4.h (LINK_SPEC): Avoid shared libraries if -g.
934:
935: * expr.c (store_one_arg): Stabilize ARG->stack so it doesn't use SP
936: before computing the arg value.
937:
938: * combine.c (use_crosses_set_p): Moving a ref to stack ptr
939: is always forbidden if machine has push insns, since might cross one.
940:
941: * vax.md (movqi): Avoid out-of-range immed ops in mcomb.
942:
943: * expmed.c (extract_bit_field): Don't say `extzv' in the
944: clause for `extv'.
945:
946: * emit-rtl.c (copy_rtx_if_shared): Even if a MEM can be shared,
947: unshare its address from everything outside that MEM.
948:
949: * expr.c (expand_builtin): Fix omitted arg to `convert_to_mode'.
950:
951: * expr.c (store_expr): In case where will not return TARGET
952: and must do type conversion, don't fail to store into TARGET.
953:
954: * dbxout.c (FORCE_TEXT): New macro used before output `.stabs'
955: to go to the text section on targets that require it.
956: (DEBUG_SYMS_TEXT): Target macro which turns on that feature.
957:
958: * reload1.c (reload): Index in spill_regs was wrong
959: when checking counted_for_groups.
960: (choose_reload_targets): When calling find_equiv_reg looking for
961: a reload reg, reject all spill regs, even those not in use now.
962:
963: * tm-sun386.h, tm-sun386i.h, config-sun386i.h: New files.
964:
965: * cccp.c (main): Don't die if no output file arg given.
966:
967: * fixincludes: Tell `find' to find only ordinary files.
968:
969: * config.gcc: If symlink fails, make a hard link.
970:
971: Sat Nov 12 20:43:20 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
972:
973: * Makefile (gnulib): Use cp to make the temporary .c files;
974: less likely to fail than ln.
975:
976: Sat Nov 5 12:46:39 1988 Randall Smith (randy at sugar-bombs.ai.mit.edu)
977:
978: * tm-m68k.h (HARD_REGNO_MODE_OK): Disallowed d7:a0 as an allowable
979: pair of registers to hold a double value. This is correct for the
980: fpa but incorrect for the 68881. It was, however, simpler than
981: defining a new regclass.
982:
983: Tue Oct 25 12:03:49 1988 Randall Smith (randy at gluteus.ai.mit.edu)
984:
985: * m68k.md: Added some thoughts (comments) on best method to allow
986: 68881 code with fpa code.
987:
988: Thu Oct 13 14:19:17 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
989:
990: * Version 1.30 released.
991:
992: * stupid.c (stupid_life_analysis): Init last_call_suid with
993: largest possible value, not 0.
994:
995: Wed Oct 12 04:40:18 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
996:
997: * output-i386.c (output_asm_insn_double_reg_op): Compensate for
998: assembler bug that interchanges fsub and fsubr.
999:
1000: * reload1.c (order_regs_for_reload): Undo 29 Sept change.
1001: It breaks the 386.
1002:
1003: * varasm.c (decode_rtx_const): Don't example value->addr
1004: if what was stored in was value->d.
1005:
1006: * toplev.c (set_float_handler): New fn, specify where to jump
1007: on floating exception signal.
1008: * fold-const.c (combine): Use that to handle overflow in arithmetic.
1009:
1010: * c-decl.c (grokdeclarator): Don't clear CONSTP, VOLATILEP
1011: when making an array type.
1012:
1013: * dbxout.c (dbxout_symbol): Ignore VAR_DECLs in memory whose
1014: addresses we can't represent.
1015:
1016: * fold-const.c (fold): don't convert >= to > if both args are constant.
1017: When converting >= to >, don't fail to change CODE.
1018:
1019: Tue Oct 11 04:13:40 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
1020:
1021: * vax.md (movhi): Error in truncating mcomw, addh3 args to 16 bits.
1022:
1023: * final.c: Better error checking for %-specs in templates.
1024: (output_operand_lossage): new fn to report errors.
1025: (insn_noperands): new var: # operands in current fn.
1026: (this_insn_asm_operands): new var: 1 for `asm', 0 otherwise.
1027: (output_asm_insn): Check for operand # out of range.
1028: (output_asm_label, output_operand): Call new fn to report errors.
1029:
1030: * reload.c (push_reloads): An input reload for (REG N) can match one
1031: for (POST_INC (REG N)) or (PRE_INC (REG N)), since the value
1032: reloaded is the same in any case.
1033:
1034: Mon Oct 10 06:19:05 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
1035:
1036: * recog.c (next_insns_test_no_inequality): Like next_insn_tests...
1037: but check all insns that follow this one and can use it's cc's.
1038: * output-m68k.c (output_btst): Use that.
1039:
1040: * vax.md (movsf, movdf): Undo last change; movq/movl set the cc wrong.
1041:
1042: * expr.c (expand_call): Set current_function_calls_setjmp if appro.
1043: * stmt.c (setjmp_protect): New fn: move all vars into stack
1044: unless declared `register'.
1045: * c-decl.c (finish_function): Call it if -traditional and setjmp used.
1046:
1047: * cccp.c (main): Open output after the input.
1048: Handle `-o -'.
1049:
1050: Sun Oct 9 00:28:06 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
1051:
1052: * tm-sun3.h (CPP_SPEC): Define __HAVE_FPA__ if appropriate.
1053:
1054: * c-decl.c (pushdecl): After duplicate_decls, maybe warn about
1055: "declared extern and later static".
1056:
1057: * expmed.c (store_bit_field): In insv case, avoid turning
1058: VALUE into a subreg of a subreg.
1059:
1060: * loop.c (move_movables): When moving a libcall,
1061: un-cse the function address; put it into the call insn.
1062:
1063: Sat Oct 8 01:48:03 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
1064:
1065: * cse.c (equiv_constant): Subroutine to find the constant equivalent
1066: of a reg. Now handles SUBREGs too.
1067: (fold_rtx, fold_cc0): Use that function.
1068: Don't handle SUBREGs like arithmetic.
1069:
1070: * reload1.c (choose_reload_targets): Don't call reg_overlap_mentioned_p
1071: if arg is 0.
1072:
1073: Fri Oct 7 01:00:19 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
1074:
1075: * assert.h: Typo declaring __eprintf.
1076:
1077: * config.gcc: New file for making the links.
1078: Fixed bugs for sun-[23]-os4. Added sun-[234] for sunos 3.
1079: Added sequent-i386.
1080:
1081: * emit-rtl.c (gen_rtx): Return const0_rtx for 0 in DImode.
1082: * varasm.c (immed_double_const): Don't be confused by this.
1083:
1084: * expmed.c (negate_rtx): New 1st arg MODE.
1085: * expr.c (push_block): Calls changed.
1086: * m68k.md, ns32k.md, vax.md: Calls changed.
1087:
1088: * c-decl.c (duplicate_decls): Don't discard DECL_BLOCK_SYMTAB_ADDRESS.
1089:
1090: * tree.c (staticp): INDIRECT_REF with constant address is static.
1091: COMPONENT_REF may not be, if component offset isn't constant.
1092:
1093: * c-typeck.c (default_conversion): Converting array to ptr, if array
1094: isn't a VAR_DECL, go through build_unary_op so that COMPONENT_REFs
1095: will be simplified away.
1096:
1097: * ns32k.md (tbitd patterns): op 0 constraint: reject constants.
1098: * ns32k.md (extzv for SImode and HImode):
1099: Use adj_offsetable_operand; plus_constant was the wrong thing.
1100:
1101: Thu Oct 6 00:10:41 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
1102:
1103: * Version 1.29 released.
1104:
1105: * loop.c (scan_loop): Don't think a `return' insn enters the loop.
1106:
1107: * ns32k.md (ashrsi3, etc): New define_expands for right shift.
1108:
1109: * reload1.c (choose_reload_targets): Change in the `force_group'
1110: logic to avoid crashes.
1111:
1112: Wed Oct 5 04:09:19 1988 Richard Stallman (rms at corn-chex.ai.mit.edu)
1113:
1114: * expr.c (expand_expr, MINUS_EXPR): When negating integer op1,
1115: truncate it to its mode.
1116:
1117: * expmed.c (extract_bit_field): SUBREG error check was wrong;
1118: SImode SUBREGs are possible and ok in extzv, extv.
1119:
1120: * tm-ns32k.h (REGISTER_NAMES): Had two excess elements; deleted.
1121:
1122: Mon Oct 3 01:15:51 1988 Richard Stallman (rms at corn-chex.ai.mit.edu)
1123:
1124: * toplev.c (main, compile_file): If no files spec'd, use stdin, stdout.
1125:
1126: * flow.c (propagate_block): When checking for stack-adjust insns,
1127: exclude non-SET patterns.
1128:
1129: * jump.c (jump_optimize): When changing jump=>return to return,
1130: must rerecognize the insn.
1131:
1132: * toplev.c (compile_file): Allow `-' for main input or output filename.
1133:
1134: Sun Oct 2 10:30:09 1988 Richard Stallman (rms at apple-gunkies.ai.mit.edu)
1135:
1136: * final.c (final): NOTICE_UPDATE_CC has extra arg, INSN.
1137: * tm-*.h: Change definitions.
1138:
1139: * stmt.c (optimize_bit_field): Use gen_lowpart to make subregs.
1140:
1141: * stmt.c (assign_parms): Don't obey regdecls in inline function.
1142: Don't lose existing REG_NOTES when adding one.
1143:
1144: * stmt.c (expand_function_start): Make return rtx before
1145: marking parms live.
1146: (expand_function_end): Use use_variable to emit USEs for SAVE_EXPRs.
1147:
1148: * stmt.c (expand_return): Handle TRUTH_AND_EXPR like ANDIF; OR also.
1149:
1150: * stmt.c (expand_end_stmt_expr): Always set TREE_VOLATILE,
1151: sometimes TREE_THIS_VOLATILE.
1152:
1153: * jump.c (delete_insn): When finding PREV, skip deleted insns.
1154:
1155: * varasm.c (output_constant): WORDS_BIG_ENDIAN test was backwards.
1156:
1157: * emit-rtl.c (gen_lowpart): Allow MODE > 1 word if X is same size.
1158:
1159: * final.c (final): Don't delete no-op moves (jump did it if appro.).
1160:
1161: * final.c: Support prescan pass.
1162: (final_start_function): init_recog and CC_STATUS_INIT mvd to `final'.
1163: (final): New arg PRESCAN. Do no output if prescanning.
1164: Don't alter conditionals if PRESCAN < 0 (prescan already done).
1165: If jump becomes no-op, change it to a NOTE.
1166: Remember to free the temp space for ASM_OPERANDS.
1167:
1168: * final.c (final): Altering store-flag must check STORE_FLAG_VALUE.
1169: Don't try to do it if that isn't defined.
1170: Don't try it if condition doesn't test CC0.
1171: (alter_cond): No need to check COND != 0.
1172: Handle CC_Z_IN_NOT_N and CC_Z_IN_N.
1173: (m68k.md): Delete code that handled CC_Z_IN_NOT_N.
1174:
1175: * conditions.h: New flag CC_Z_IN_N.
1176: * tm-*.h: Renumber all CC_... flags to make room.
1177:
1178: * combine.c (use_crosses_set_p): Loop start was 1 off.
1179:
1180: * local-alloc.c (reg_is_set): When a reg is CLOBBERed and dies in
1181: one insn, make it live immediately before and after that insn.
1182:
1183: * global-alloc.c: Hard reg preferences for global pseudos.
1184: Var allocno_preferred_reg deleted; new vars hard_reg_preferences
1185: and regs_someone_prefers.
1186: (global_alloc): Init those vars. Pass hard_reg_preferences elt
1187: to find_reg.
1188: (set_preference): New function makes entries in those vars.
1189: (global_conflicts): new arg to mark_reg_store. Call set_preference.
1190: (find_reg): Last arg now a preferred hard_reg_set.
1191: Scan that set first of all.
1192: (mark_reg_store): New arg is offset for renumbered regno.
1193: But the code to use it is turned off.
1194:
1195: * global_alloc (check_frame_pointer_required): Handle reg_equiv_address
1196: like reg_equiv_mem. Don't try to allocate pseudos with equiv mems
1197: that don't use the frame pointer.
1198: * reload1.c (reload): Call changed.
1199:
1200: * jump.c (sets_cc0_p): Tests whether rtx sets cc0, and whether
1201: it does nothing but set cc0.
1202: (find_cross_jump, delete_jump): Use that fn for these tests.
1203: * loop.c (loop_skip_over): Likewise.
1204: * reload.c (push_reload): Likewise.
1205:
1206: * genoutput.c: Output `const' before the data arrays.
1207: Define it as nothing if not __STDC__.
1208:
1209: Sat Oct 1 02:19:29 1988 Richard Stallman (rms at apple-gunkies.ai.mit.edu)
1210:
1211: * expr.c (store_one_arg): 3rd arg to emit_block_move is in bytes.
1212:
1213: * cse.c (fold_rtx): Handling ZERO_EXTEND or SIGN_EXTEND of constant,
1214: if the arg width is too wide to handle, return safely.
1215:
1216: * combine.c (FAKE_EXTEND_SAFE_P): Don't allow extend to > 1 word.
1217:
1218: * rtl.c (refers_to_regno_p): Moved from reload.c. Not static.
1219: (reg_overlap_mentioned_p): New function, calls the above.
1220: * output-*.c: Use that instead of reg_mentioned_p.
1221: * tm-*.h (NOTICE_UPDATE_CC): Likewise.
1222: * reload.c (push_reload, combine_reloads): Likewise.
1223: * reload1.c (choose_reload_targets): Use it to check earlyclobbers.
1224:
1225: * reload1.c (choose_reload_targets): Elimination of previous
1226: output-reload feeding our input now limited to pseudo-regs.
1227:
1228: * flow.c (life_analysis): Delete any insn copying reg to itself.
1229: (propagate_block): Move update of OLD after special life and death
1230: for CALL_INSNs.
1231:
1232: * vax.md (ashrsi3, ashrdi3, rotrsi3): define_expands to negate
1233: the shift count.
1234: * expmed.c (expand_shift): Eliminate negate-the-shift-count feature.
1235:
1236: * vax.md (and*i3): define_expands which use complement and bit-clear.
1237: * expmed.c (expand_bit_and): Eliminate feature to do that.
1238: This function could be eliminated.
1239:
1240: * expmed.c (store_bit_field): Handle nested subregs.
1241: Allow gen_insv to fail; if it does, delete what we did and then
1242: use store_fixed_bit_field.
1243: (store_fixed_bit_field): Use gen_lowpart to make SUBREGs.
1244: Do that for SUBREGs just as for REGs.
1245: Error check OFFSET must be 0 for REGs.
1246: (store_split_bit_field): Error check OP0 is a SUBREG when expected.
1247: (extract_bit_field): Allow gen_ext{,z}v to fail.
1248: Use gen_lowpart to make subregs.
1249: (expand_shift): If a try fails, delete any insns it made.
1250:
1251: * expmed.c (expand_mult): Use expand_unop to negate.
1252: When adding 2 powers of 2, do serial shifts, not parallel.
1253: Handle absval==1 like other powers of 2.
1254:
1255: * explow.c (force_reg): Don't lose any existing reg notes.
1256:
1257: * stmt.c (expand_start_stmt_expr): Eliminate return value.
1258: (expand_end_stmt_expr): No need for argument.
1259: * c-parse.y (primary): Change calls.
1260:
1261: Fri Sep 30 01:50:22 1988 Richard Stallman (rms at corn-chex.ai.mit.edu)
1262:
1263: * integrate.c (copy_rtx_and_substitute, copy_address):
1264: 'u' case erroneously returned the translated single element.
1265: (copy_address): Special cases for frame-ptr and sums containing it.
1266: MEM and LABEL_REF cases passed wrong arg to copy_rtx_and_substitute.
1267: (copy_rtx_and_substitute): adjust mode of inline_target for context.
1268:
1269: * jump.c (true_regnum): For SUBREG of pseudo, use pseudo's # unchanged.
1270:
1271: Thu Sep 29 02:50:46 1988 Richard Stallman (rms at corn-chex.ai.mit.edu)
1272:
1273: * i386.md (movsi, mov{q,h}i): Use find_reg_note to look for REG_WAS_0.
1274: * vax.md (movsi, movhi): Likewise.
1275:
1276: * varasm.c (decode_rtx_const): Was setting un.addr.base wrong
1277: for a CONST. Should be symbol name, not the SYMBOL_REF.
1278:
1279: * rtl.c (rtx_equal_p): When comparing registers, check
1280: REG_FUNCTION_VALUE_P. If there are `u'-slots in the rtx, ignore them.
1281:
1282: * rtl.c (reg_mentioned_p): Some rtx types were mistakenly treated
1283: as uniquified (various constants).
1284:
1285: * rtl.c (read_rtx): Element type 'S' is string that may be omitted.
1286: * rtl.def (define_insn, define_peephole): Add a last element, type 'S'.
1287: * genoutput.c: Collect these optional last elements and output as
1288: array `insn_machine_info' of structs `INSN_MACHINE_INFO'.
1289: The last must be defined as a macro.
1290: * recog.h (insn_machine_info): Declare it if appropriate.
1291:
1292: * regclass.c (record_address_regs): In PLUS case, look inside SUBREGs.
1293:
1294: * reload1.c (reload): Use reg_equiv_address for REG_EQUIVs with
1295: invalid memory addresses.
1296: When changing pseudos to mem refs at end, do FIX_FRAME_POINTER_ADDRESS
1297: on their addresses.
1298: (alter_reg): Check that with reg_equiv_mem.
1299: (spill_hard_reg): If fp reg, spill regardless of basic_block_needs.
1300:
1301: * reload1.c (order_regs_for_reload): Don't put invalid regs into
1302: potential_reload_regs at all. (They used to go at the end.)
1303:
1304: * reload.c (find_reloads): Store all earlyclobber operand in
1305: reload_earlyclobbers (# in n_earlyclobbers):
1306: * reload1.c (choose_reload_targets): Don't use value of find_equiv_reg
1307: if it matches an earlyclobber operand.
1308:
1309: * reload.c (find_reloads_address for REG):
1310: No need for explicitly excluding hard regs in these tests.
1311: (find_reloads, find_reloads_address_1 for REG): likewise.
1312:
1313: * reload.c (push_reload): Code testing reg_equiv_constant should
1314: be obsolete; add error check to verify this.
1315:
1316: * reload.c (hard_reg_set_here_p): Handle CLOBBERs, SUBREGs, overlap.
1317: (refers_to_regno_p): Handle CLOBBERS. Handle overlap.
1318: New arg ENDREGNO specs end of range to check for;
1319: all callers changed (all in this file).
1320:
1321: * reload.c (find_reloads): SUBREG like REG in alternate recovery
1322: for earlyclobber conflict.
1323: The operands to unswap are those that are supposed to commute.
1324: When operands match, copy the regclass of earlier one for later one.
1325:
1326: * stmt.c (optimize_bit_field): Don't use gen_extend_insn;
1327: use convert_move, then reorder the insns.
1328: * optabs.c (gen_extend_insn): Deleted.
1329:
1330: * optabs.c (emit_cmp_insn): Don't emit queue before recursion.
1331: Don't convert size to SImode for cmpstrqi.
1332:
1333: * optabs.c (expand_binop): Keep any old REG_NOTES when adding them.
1334: Always delete_insns_since if returning failure.
1335: (expand_unop, emit_unop_insn): Keep any old REG_NOTES when adding them.
1336: * spur.md (movhi): likewise.
1337:
1338: * RTL_EXPR_SEQUENCE is now a chain of insns, not a SEQUENCE.
1339: * emit-rtl.c (emit_insns): New fn, emit a chain of insns.
1340: * expr.c (expand_expr): Use that.
1341: Also put const0_rtx in the RTL_EXPR_SEQUENCE (mark RTL_EXPR as output).
1342: * stmt.c (expand_end_stmt_expr): Use get_insns to get the chain.
1343:
1344: * stmt.c (expand_end_stmt_expr): Put the RTL_EXPR on rtl_expr_chain.
1345: (fixup_var_refs): Scan all waiting RTL_EXPRs not yet output.
1346: Also scan all stacked sequences on sequence_stack.
1347:
1348: * genemit.c (gen_expand): Generate calls to {start,end}_sequence.
1349: Use `emit' to handle a PARALLEL.
1350: (FAIL, DONE): Change to fit gen_expand changes.
1351:
1352: * emit-rtl.c (change_address): abort if arg isn't a MEM.
1353:
1354: * emit-rtl.c: Sequences work now by saving and restoring first_insn
1355: and last_insn. So these variables are used even when in a sequence.
1356: emit_to_sequence has been deleted.
1357: (start_sequence, end_sequence): Save and restore first_insn, last_insn.
1358: (get_last_insn, add_insn): Sequences no longer need special treatment.
1359: (delete_insns_since, reorder_insns): likewise.
1360: (push_to_sequence): Set up to emit to a given existing insn chain.
1361:
1362: * emit-rtl.c (copy_rtx_if_shared): Don't copy INSNs.
1363: Insert missing return stmt in MEM case (for MEMs ok to share).
1364: (unshare_all_rtx): Now can copy the REG_NOTES simply.
1365: Copy the LOG_LINKS too.
1366:
1367: * emit-rtl.c (make_safe_from): Treat SUBREG as X like a REG.
1368: (delete_insns_since): Don't lose if FROM is the first insn.
1369: (emit): Declare void, since no useful value.
1370: Call simplejump_p properly.
1371: (restore_reg_data_1): When a reg is an address, do mark_reg_pointer.
1372:
1373: * dbxout.c (dbxout_types): Call dbxout_symbol to do the work.
1374: (dbxout_type_def): Deleted.
1375: (dbxout_symbol): Set TREE_ASM_WRITTEN when a TYPE_DECL is output.
1376: Don't output the same one twice.
1377:
1378: * cse.c (fold_cc0): LABEL_REF is not zero.
1379:
1380: * cse.c (cse_insn): Don't insert src, dest if they are the same place.
1381:
1382: * cse.c (lookup_as_function): Return entire rtx, not just operand.
1383: (cse_insn): Caller changed. Also, copy the result before inserting it.
1384:
1385: * cse.c (fold_rtx): Put constant arg last if commutative op.
1386: Handle idempotents and identities for mult, div, booleans, shifts.
1387:
1388: * cse.c (canon_hash): Parens were missing around shifts in "rotates".
1389:
1390: * c-convert.c (convert_to_integer): Truncate TRUTH_ANDIF_EXPR
1391: like TRUTH_AND_EXPR; OR also.
1392:
1393: * c-typeck.c (build_binary_op_nodefault): Do truthvalue_conversion
1394: for TRUTH_ANDIF, etc.
1395: (build_unary_op): More simplifications for TRUTH_NOT_EXPR;
1396: uses new fn `invert_truthvalue'.
1397:
1398: * recog.c (reg_fits_class_p): New name for reg_renumbered_fits_class_p
1399: since it no longer needs to renumber. Also it now really assumes
1400: arg is a REG. Callers changed.
1401: * reload.c: Callers changed.
1402:
1403: * recog.c (general_operand): (SUBREG (MEM...)) need not alter mode.
1404: (register_operand, nonmemory_operand): (SUBREG (MEM...)) is allowed.
1405: (memory_operand): (SUBREG (MEM...)) is *not* allowed.
1406: (mode_independent_operand): Operand names were backwards!
1407: (No change in effect of this function.)
1408:
1409: * print-tree.c (dump): Some expr nodes contain rtx's. Print as rtx's.
1410:
1411: Wed Sep 28 18:51:12 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
1412:
1413: * reload1.c (choose_reload_targets): If a reload wanted a group,
1414: don't allow a single register for it.
1415:
1416: Tue Sep 27 11:43:56 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
1417:
1418: * final.c (output_addr_const): Handle DImode CONST_DOUBLEs.
1419: * tm-*.h (PRINT_OPERAND): Treat DImode CONST_DOUBLE like a CONST_INT.
1420:
1421: * vax.md (rotldi3): Insn deleted; it doesn't really exist.
1422:
1423: * toplev.c (report_error_function): Also mention the file name,
1424: for parallel makes. New arg FILE; all callers changed.
1425:
1426: Mon Sep 26 15:44:18 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
1427:
1428: * expmed.c (expand_shift): When using extzv, convert OP1 to SImode.
1429: * c-typeck.c (build_binary_op_nodefault): Convert shift-count
1430: to int regardless of result type.
1431:
1432: * output-spur.c (output_move_double): Fix typo, optype0=>optype1.
1433:
1434: * expr.c (expand_call): Avoid null deref on result of FUNCTION_ARG.
1435:
1436: * tm-i386.h (FUNCTION_PROFILER): Use correct assembler syntax.
1437:
1438: Sun Sep 25 12:13:56 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
1439:
1440: * fixincludes: Handle some files in netdnet, netdna, vaxif, vaxuba.
1441:
1442: * reload.c (find_reloads): Make no optional reloads if not -O.
1443:
1444: * loop.c (strength_reduce): Can't eliminate a biv if it's used
1445: to compute a DEST_ADDR giv. Only DEST_REG givs are safe.
1446:
1447: * loop.c (general_induction_var): Shift & divide ops are linear
1448: only in 1st operand; don't look for biv or giv in 2nd operand.
1449:
1450: * vax.md (fix_truncdfqi2): Use `%#'.
1451:
1452: Sat Sep 24 00:25:48 1988 Richard Stallman (rms at gluteus.ai.mit.edu)
1453:
1454: * loop.c (n_times_set, n_times_used): Now file-scope;
1455: no longer passed as args to several functions.
1456:
1457: * loop.c (basic_induction_var): Accept reg as source value
1458: only if it's invariant.
1459: (strength_reduce): Benefit calculation and threshold changed.
1460: Check reducibility of givs before trying to reduce them.
1461: Check eliminability of biv before considering the givs;
1462: let this affect the threshold.
1463: (record_giv): New subroutine adds a giv to the chain.
1464:
1465: * ns32k.md (incrementing sp): Use cmpd insns to increment by 4 or 8.
1466:
1467: * integrate.c (expand_inline_function): Rename return_label
1468: to local_return_label; avoid shadowing.
1469:
1470: Fri Sep 23 13:57:52 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
1471:
1472: * loop.c (loop_skip_over): Put the new label after the note that ends
1473: the loop.
1474:
1475: * loop.c: New function strength_reduce and subroutines.
1476: * toplev.c: New var flag_strength_reduce, set from -fstrength-reduce.
1477:
1478: * vax.md (sob insns): They were broken, with plus in one place
1479: and minus in another. Use plus consistently.
1480:
1481: * rtl.h (REG_LIBCALL, REG_NONNEG): Two new kinds of reg-note.
1482: * optabs.c (expand_binop, expand_unop): Make REG_LIBCALL notes.
1483: * loop.c (scan_loop, move_movables): Move entire library calls.
1484: Use m->set_src to get the expression, in case it's from a REG_EQUAL.
1485: (consec_sets_invariant_p): Likewise.
1486:
1487: * loop.c (scan_loop): Start scan from loop_top, if entry is rearranged.
1488: Watch out for pseudo regs created by strength_reduce;
1489: they can't index regno_last_uid.
1490: (replace_regs): # regs mapped is now an arg.
1491:
1492: * loop.c (count_loop_regs_set): Don't increment n_times_set past 127.
1493: (consec_sets_invariant_p): Reject if N_SETS arg is 127.
1494:
1495: * toplev.c (rest_of_compilation): NREGS arg of loop_optimize deleted.
1496:
1497: * c-decl.c (store_parm_decls): Anything but an IDENTIFIER_NODE
1498: in SPECPARMS indicates a parmlist, not an identifier list.
1499: (get_parm_info): Use only PARM_DECLs when making the list of arg types.
1500:
1501: * combine.c (try_distrib): Boolean ops can't distribute through PLUS.
1502: MULT can distribute through PLUS and only PLUS.
1503:
1504: Thu Sep 22 15:57:41 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
1505:
1506: * jump.c (jump_optimize): uncond jump to a return becomes a return.
1507:
1508: * integrate.c (copy_parm_decls, copy_decl_tree): Set TREE_USED.
1509: Avoid inevitable "unused" warning for these decls.
1510:
1511: * c-typeck.c (comptypes): When comparing array types,
1512: ignore qualifiers of element type.
1513:
1514: * tm-*.h (ASM_OUTPUT_REG_PUSH, ASM_OUTPUT_REG_POP): Define new macros.
1515: * final.c (final_start_function): Use them to protect around
1516: the call to the profiling function.
1517: * stmt.c (expand_function_start): Set current_function_needs_context
1518: and current_function_returns_struct.
1519:
1520: * stmt.c (expand_null_return_1): If clear_pending_stack_adjust
1521: doesn't clear it, do the adjust now.
1522: * expr.c (clear_pending_stack_adjust): No-op if -finline-functions.
1523:
1524: * cccp.c (macarg1, skip_if_group): Backslash makes next char ordinary.
1525:
1526: * reload.c (find_reloads): Delete code to look for an equiv reg
1527: for a reg being input-reloaded. This isn't safe.
1528: * reload1.c (choose_reload_targets): Do it here.
1529:
1530: Wed Sep 21 00:36:22 1988 Richard Stallman (rms at hobbes.ai.mit.edu)
1531:
1532: * tm-sun3.h (CPP_SPEC): Define it based on TARGET_DEFAULT.
1533: (STARTFILE_SPEC): Likewise.
1534:
1535: * reload1.c (choose_reload_targets): When redirecting prev insn
1536: into this insn's reload-reg, check this doesn't break the prev insn
1537: by giving it a reg it can't accept. Use new fn constraint_all_regs_p.
1538:
1539: * tm-sparc.h (ASM_OUTPUT_LOCAL): Use .reserve, not .common.
1540:
1541: * tree.h (TREE_USED): New attribute macro.
1542: * c-parse.y (primary): Set TREE_USED in ..._DECL nodes.
1543: * toplev.c, flags.h: Define and set warn_unused.
1544: * stmt.c (expand_end_bindings): Warn if any var is unused.
1545: * print-tree.c (prtypeinfo): Print this attribute.
1546:
1547: Tue Sep 20 15:29:01 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
1548:
1549: * assert.h: `assert' must expand to an expression.
1550: Error message should show arg before expansion, not after.
1551:
1552: * c-decl.c (implicitly_declare): Make decl perm if !warn_implicit
1553: since start_function needs to look inside it in that case.
1554:
1555: * toplev.c (announce_function): If we don't print, don't record we did.
1556:
1557: Mon Sep 19 15:21:11 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
1558:
1559: * c-parse.y (structsp): If pedantic, warn if comma at end of enumlist.
1560:
1561: * reload.c (find_reloads): Check insn_code_number >= 0 when
1562: looking in insn_operand_strict_low.
1563:
1564: * tm-sun[23].h (CPP_SPEC): Rename __HAVE_FPU__ to __HAVE_68881__
1565: and put a space after that option.
1566:
1567: Sun Sep 18 01:12:56 1988 Richard Stallman (rms at hobbes.ai.mit.edu)
1568:
1569: * reload.c (find_reloads): Make optional reloads for explicit MEMs.
1570:
1571: * tm-m68k.h (MODES_TIEABLE_P): If no 68881, can tie fixed to floating.
1572: * m68k.md (movdi): Allow F's (can be DImode now).
1573: Don't allow f-regs (experiment). Don't preference x-regs.
1574: (DImode push): Allow y-regs.
1575: (DFmode push): Allow y-regs, not x-regs.
1576:
1577: * reload1.c (modes_equiv_for_class_p): New function.
1578: (reload): Compare multiple modes for reg group with that function.
1579: Allows differing modes in some cases when not tieable.
1580:
1581: * c-parse.y (check_newline): Let ASM_OUTPUT_IDENT override .ident.
1582: * tm-3b1.h (ASM_OUTPUT_IDENT): Define this as no-op.
1583:
1584: * emit-rtl.c (reorder_insns): Update sequence_{first,last}_insn if nec.
1585: (get_last_insn): If in a sequence, return last insn of sequence.
1586: (delete_insns_since): If in a sequence, set sequence_last_insn.
1587:
1588: * spur.md (CONST_DOUBLE load insn): Use & for most dests.
1589: (cond branches): pass additional args to output_compare.
1590: (movdf, movdi): Use & loading reg from mem.
1591: (trunc*): Enable these.
1592: (add): New pattern for adding large immediate operand.
1593: (shifts): A define_expand for each kind of shift,
1594: plus a recognizer which outputs repeated insns if necessary.
1595: (call*): Use r9 as temp, not r2.
1596:
1597: * output-spur.c (output_compare): New args NEG_{EXCHANGE_,}OPCODE.
1598: (singlemove_string): Handle reg as operand 1.
1599: (output_add_large_offset): Fake add insn with large immediate arg.
1600: (big_immediate_operand): Match such an arg.
1601:
1602: * tm-spur.h (FUNCTION_PROLOGUE): Align the stack pointer.
1603: Handle bigger frames.
1604: (TARGET_LONG_JUMP, TARGET_EXPAND_SHIFT): New target flags.
1605:
1606: * va-spur.h: Track position in regs and stack separately.
1607:
1608: * c-decl.c (duplicate_decls): Warn if prototype follows
1609: non-prototype definition.
1610:
1611: Sat Sep 17 14:30:23 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
1612:
1613: * expr.c (expand_builtin): Avoid crash if arg isn't integer type.
1614:
1615: * c-decl.c (duplicate_decls): Just warn if redeclaring a builtin,
1616: and leave it built in unless it is redefined.
1617:
1618: * vax.md (ashlsi3): Use addl3, moval or movad when useful.
1619: (addsi3): Avoid pushab, movab for constants < 64.
1620: Do use movab when > 64 when operands match.
1621: (mov*i): Use mcom* rather than mneg*.
1622: Use add*3 with two quick immediate args when useful.
1623: (movhi): Don't use movzbw or cvtbw; said to be slow.
1624:
1625: * rtl.h: New macros MEM_VOLATILE_P, MEM_IN_STRUCT_P,
1626: INSN_DELETED_P, REG_USER_VAR_P, RTX_UNCHANGING_P, RTX_INTEGRATED_P,
1627: CONSTANT_POOL_ADDRESS_P.
1628: Most places changed to use them.
1629:
1630: Fri Sep 16 11:50:15 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
1631:
1632: * jump.c (jump_optimize): Was testing volatil on non-MEMs erroneously
1633: when looking for no-op move insns.
1634:
1635: * cccp.c (handle_directive): Ignore comments between # and directive.
1636:
1637: * integrate.c (copy_rtx_and_substitute): Stack-push memrefs need
1638: to be copied.
1639:
1640: * tm-bsd386.h (ASM_OUTPUT_DOUBLE): Undef previous def.
1641:
1642: * reload1.c (alter_reg): Don't reuse spill_stack_slot
1643: if it isn't big enough for this reg's mode.
1644:
1645: * expr.c (emit_move_insn): After force_const_mem, ensure
1646: mem address is valid.
1647: (move_block_to_reg, move_block_from_reg): Likewise.
1648:
1649: * expr.c (expand_call): Spurious TREE_VALUE on args[i].tree_value.
1650:
1651: * m68k.md (zero_extend*): Require register_operand for operand 0.
1652:
1653: * stdarg.h (va_start): Alternate defn for sparc.
1654:
1655: Thu Sep 15 11:39:06 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
1656:
1657: * c-parse.y (yylex): When atof gives ERANGE, check for "0.0", etc.
1658:
1659: * assert.h (__assert): Alternative definition for -traditional.
1660:
1661: * output-sparc.c (output_block_move): Initialize xoperands.
1662:
1663: * combine.c (try_combine): Never subst for a reg that is incremented.
1664:
1665: * m68k.md (cmpm pattern): Make the match_operands match memrefs
1666: and check that they are pushes in the extra condition.
1667: This makes reloading handle the pushes properly.
1668:
1669: * expr.c (MOVE_RATIO): Make it 15. Allow overriding it.
1670:
1671: Wed Sep 14 09:50:08 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
1672:
1673: * c-decl.c (build_enumerator): Use saveable_tree_cons.
1674:
1675: * vax.md (movdf): Use movq when safe.
1676:
1677: * Version 1.28 released.
1678:
1679: * tm-sparc.h (FIRST_PARM_CALLER_OFFSET): Defined.
1680:
1681: Tue Sep 13 00:11:37 1988 Richard Stallman (rms at corn-chex.ai.mit.edu)
1682:
1683: * tree.c (saveable_tree_cons): New function.
1684: * c-decl.c (pushtag): Use it; lists of tags needed for inlining.
1685: (get_parm_info): Likewise.
1686:
1687: * print-tree.c (dump): Handle each kind of statement node individually.
1688:
1689: * integrate.c (copy_decl_tree): Don't pass DECL_RTL through
1690: copy_rtx_and_substitute if it's a memref with constant address.
1691:
1692: * sdbout.c (sdbout_symbol): Don't output garbage when DECL_RTL
1693: has a form we don't understand.
1694:
1695: * reload.c (find_reloads_address_1): Don't reload an autoincrement
1696: if it has a suitable hard reg already.
1697:
1698: * c-typeck.c (process_init_constructor): Error check after digest_init.
1699:
1700: * c-parse.y (is_reserved_word): Now static.
1701:
1702: Mon Sep 12 19:19:28 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
1703:
1704: * i386.md (all push insns): Use `<' for the constraint,
1705: since a push_operand won't fit an `m' constraint on this machine.
1706:
1707: * expr.c (expand_call): If fn name is `__builtin_alloca',
1708: it may be alloca. This case arises if the user redeclares
1709: `__builtin_alloca'.
1710:
1711: Sun Sep 11 01:47:01 1988 Richard Stallman (rms at gluteus.ai.mit.edu)
1712:
1713: * Eliminate MAX_SETS_PER_INSN.
1714: * cse.c (cse_insn): Combine all the tables and dynamically allocate.
1715: (cse_main): Count the actual number of SETs; don't estimate.
1716: * genconfig.c: Don't calculate MAX_SETS_PER_INSN.
1717: * stmt.c (expand_asm_operands): No limit on # of output operands.
1718:
1719: * expr.c (expand_call):
1720: Store all non-reg parms first, then store all partially-in-reg
1721: parms, then all the (precomputed) wholly-in-reg parms.
1722: Special hair for BLKmode parms which must be passed entirely
1723: in memory; also for BLKmode parms initialized from function calls,
1724: for which it is best to allocate the space before computing value.
1725: Use macro FIRST_PARM_CALLER_OFFSET to handle machines where reg
1726: parms "take up space" on the stack below the stack pointer.
1727: (store_one_arg): Handle case of preallocated stack loc for BLKmode.
1728: Update current_args_size here, not in caller.
1729:
1730: Sat Sep 10 19:58:03 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
1731:
1732: * output-sparc.c (output_scc_insn): Changed asm templates.
1733: Use common code to emit the move insns and label at the end of fn.
1734: (output_mul_by_constant): Use %g1 as temporary reg.
1735:
1736: * sparc.md (indexed load pattern): Deleted.
1737: (fix_truncdfsi2): Don't ignore value of output_fp_move_double.
1738: (cse'd multiply): Operand 1 predicate is general_operand.
1739: (return peepholes): Conditionalize on ! TARGET_EPILOGUE.
1740:
1741: * tm-sparc.h (INIT_CUMULATIVE_ARGS,FUNCTION_ARG...):
1742: Use partial regs for args that start in regs but won't entirely fit.
1743:
1744: * tm-sparc.h (CONST_COSTS): 0 for args that can be immediate.
1745: (STRUCTURE_SIZE_BOUNDARY): Now 8.
1746: (STRUCT_VALUE_OFFSET): Defined as symbolic name for `64'.
1747:
1748: * expr.c (struct arg_data): New component `stack' says where in the
1749: stack to put a BLKmode arg (if it's nonzero).
1750: (store_one_arg): Handle case where it's nonzero.
1751: (target_for_arg): New fn, precompute stack locn for BLKmode arg.
1752:
1753: Fri Sep 9 01:41:13 1988 Richard Stallman (rms at corn-chex.ai.mit.edu)
1754:
1755: * cse.c (fold_rtx): Misnested ifs screwed SUBREG case.
1756:
1757: * reload.c (find_reloads_toplev): Special case for (SUBREG REG)
1758: where REG is equivalent to a CONST_INT.
1759: (find_reloads): Don't ignore the value returned by find_reloads_toplev.
1760: Treat a (SUBREG constant) like a (SUBREG MEM): set force_reload.
1761:
1762: * reload.c (push_reload): Abort if memory subreg is not
1763: paradoxical; the MEM mode should be narrower than the SUBREG.
1764:
1765: * stmt.c (fixup_var_ref_1): Fixup memory subregs in an insn
1766: copying VAR to or from a register.
1767:
1768: * m68k.md (movdi, movdf): the x-reg constraint accidentally allowed
1769: moving rm to rm with no &.
1770:
1771: * vax.md (call_value): Typo.
1772:
1773: * expr.c (emit_block_move, emit_push_insn): prefer movstrqi to movstrsi
1774:
1775: * m68k.md (FPA multiply): bad opcodes for 3-operand multiply insns.
1776:
1777: Thu Sep 8 18:22:14 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
1778:
1779: * c-parse.y: Use YYERROR instead of synonym YYFAIL.
1780: BISON VERSIONS PRIOR TO THIS DATE WON'T WORK!
1781:
1782: * c-typeck.c (digest_init): Use TYPE_MAIN_VARIANT of array elt type.
1783:
1784: * tm-sun[23].h (CPP_SPEC, ASM_SPEC): Let -m(c|)680[12]0 control
1785: options for CPP and assembler.
1786:
1787: Wed Sep 7 13:44:59 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
1788:
1789: * New handling of reloading of PRE_DEC, etc.
1790: Now reload_in is the PRE_DEC, etc, and reload_inc is always positive.
1791: * reload.c (push_reloads): Old code to set reload_inc deleted.
1792: (find_reloads_address_1): Call push_reload the new way.
1793: (find_inc_amount): Value always positive.
1794: * reload1.c (choose_reload_targets): Detect this case.
1795: (inc_for_reload): New fn; does the real work for this case.
1796: * m68k.md (call, call_value): Fn address must be offsetable.
1797:
1798: * combine.c (try_distrib): Reject strange cases such as if
1799: result of PREV1 or PREV2 is used in a memory address in INSN.
1800:
1801: * vax.md (movsf): Generate movl instead of movf.
1802:
1803: * expr.c (expand_call): If have regparms, store all BLKmode args
1804: before all the other args.
1805: (store_one_arg): New subroutine broken out.
1806:
1807: * output-sparc.c (output_block_move): Complete rewrite.
1808:
1809: * sparc.md (cse'd multiply insn): Typo in asm-output code.
1810:
1811: Tue Sep 6 20:05:48 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
1812:
1813: * c-parse.y (yylex, etc.) Install Schmidt's perfect hash table.
1814:
1815: * gcc.c: handle extension `.cc'.
1816:
1817: Mon Sep 5 12:09:58 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
1818:
1819: * Version 1.27 released.
1820:
1821: * tm-i386.h (PREFERRED_RELOAD_REG): When reloading a QImode,
1822: make sure the class doesn't include %esi or %edi.
1823: * i386.md (movqi): Eliminate only use of the class `x',
1824: for which PREFERRED_RELOAD_REG cannot work.
1825: (In next version, get rid of INDEX_CLASS).
1826: Also use `*' to cause preferencing of Q_REGS.
1827: * tm-m68k.h (PREFERRED_RELOAD_REG): When reloading a QImode,
1828: use DATA_REGS.
1829:
1830: * reload.c (push_reloads): Braino in last change when IN == 0.
1831:
1832: * flow.c (mark_used_regs, mark_set_1): Bug if HARD_REGNO_NREGS
1833: returns 0 for VOIDmode reg (inside a CLOBBER).
1834:
1835: * c-parse.y (asm_operand): Handle `("REGNAME")' as an operand.
1836: * recog.c (decode_asm_operands, asm_noperands): Ignore any CLOBBERs.
1837: * regclass.c (reg_names): Variable now global.
1838: * stmt.c (expand_asm_operands): Generate CLOBBERS when appropriate.
1839:
1840: * stmt.c (assign_parms): Ignore parms that aren't PARM_DECLs.
1841:
1842: * varasm.c (assemble_variable): Do ASM_OUTPUT_EXTERNAL for functions.
1843:
1844: * c-parse.y (yylex): floatflag is now an enum.
1845: Detect invalid use of decimal points (> 1, or in exponent)
1846: and multiple exponent letters.
1847:
1848: * expr.c (expand_call): If inlining fails, set TREE_ADDRESSABLE.
1849:
1850: Sun Sep 4 00:36:30 1988 Richard Stallman (rms at corn-chex.ai.mit.edu)
1851:
1852: * c-decl.c (grokdeclarator): A const array becomes an array of consts.
1853: * c-typeck.c (build_array_ref): Array ref is const if array elts are.
1854:
1855: * output-sparc.c (output_move_double): Change criteria for ldd, std.
1856: (output_fp_move_double): New alternatives avoid ldd, std for
1857: stack refs that aren't aligned.
1858: (output_block_move): Use %g1 as temp reg.
1859:
1860: * sparc.md (floating point load from constant mem address):
1861: Use %g1 as temp reg. Use output_move_double in DF case, not ldd.
1862: (movsf): Asm insn typo in FPreg to FPreg case.
1863: (floatsi{s,d}f2): Constraint changed.
1864: Also new special case pattern in front of it.
1865: (fix_truncdfsi2): Use output_move_double, not ldd.
1866: (addsi3, subsi3): Use %g1 as temp reg.
1867: (cse-optimized multiply): Constraint now `g'; output generalized.
1868: (andsi3, orsi3, xorsi3): Use %g1 as temp reg.
1869:
1870: * reload.c (find_reloads): Force int constants into memory just
1871: like floating ones, if memory is allowed and no regs are.
1872:
1873: * expr.c (expand_call): Don't treat structure_value_addr like a parm
1874: if the first parm would be passed in a register.
1875: Also, write comments for all local vars.
1876:
1877: * tm-386v.h (START_SPEC): Use {g,m}crt1.o, not {g,m}crt0.o.
1878: (LIB_SPEC): Always use crtn.o.
1879:
1880: Sat Sep 3 13:05:50 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
1881:
1882: * explow.c (plus_constant): Don't put CONST around lone SYMBOL_REF.
1883:
1884: * combine.c (subst): Simplify zero- or sign-extend of a constant.
1885:
1886: * expr.c (expand_expr): for REAL_CST, etc., check for invalid
1887: memory addresses and copy into registers.
1888:
1889: * integrate.c (expand_inline_function): If incoming struct value addr
1890: is in memory, map it like a memory parameter.
1891:
1892: * tm-*.h (FIRST_PARM_OFFSET): Now takes fndecl as argument.
1893: * integrate.c (expand_inline_function): Calc., use and save
1894: this fns value of FIRST_PARM_OFFSET.
1895: (copy_rtx_and_substitute): Use that value.
1896: * stmt.c (assign_parms): Likewise.
1897:
1898: * tm-sparc.h (FIRST_PARM_OFFSET): Make it 64 if value is BLKmode.
1899: (STRUCT_VALUE{,_INCOMING}): Put the value in 64(fp).
1900:
1901: * tm-sparc.h (PRINT_OPERAND_ADDRESS): Print offsets in decimal.
1902: Avoid excess `+' before a negative offset.
1903:
1904: * stmt.c (expand_function_start): Create the return value rtl
1905: before making the tail-recursion loop point.
1906:
1907: * combine.c (gen_lowpart_for_combine): Generate a paradoxical subreg
1908: rather than a wider memref.
1909:
1910: * reload.c (push_reload): Extend last change to case where OUT != 0.
1911:
1912: Fri Sep 2 11:43:20 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
1913:
1914: * stmt.c (fixup_var_refs): Adjust last_parm_insn when deleting insns.
1915:
1916: * expr.c (emit_push_insn): calling memcpy, bump TEMP 2 pointers worth.
1917:
1918: Thu Sep 1 16:39:57 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
1919:
1920: * reload1.c (choose_reload_targets): Test for canceled reload
1921: before looking inside reload_out.
1922:
1923: * jump.c (jump_optimize): Bug in last change.
1924:
1925: * m68k.md (return): Pattern disabled; confuses Aug 29 stmt.c change.
1926: * ns32k.md, i386.md: likewise.
1927:
1928: * emit-rtl.c (emit_note_force): New, like emit_note but always do it.
1929: * stmt.c (expand_function_end): Use emit_note_force.
1930:
1931: Wed Aug 31 11:34:08 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
1932:
1933: * reload1.c (alter_reg): New arg FROM_REG is hard reg that the pseudo
1934: was spilled from. Works with spill_stack_slot. Callers changed.
1935: Now all pseudos spilled from one hard reg get the same slot.
1936: (reload): Initialize new variable spill_stack_slot.
1937:
1938: * cse.c (cse_insn): Don't insert floating point mems if -ffloat-store.
1939:
1940: * reload.c (find_equiv_reg): Allow no equivs for volatile memrefs.
1941: Also none for floating mem refs if -ffloat-store.
1942:
1943: * output-sparc.c (output_mul_by_constant): make `p' and `log' unsigned.
1944:
1945: Tue Aug 30 13:47:12 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
1946:
1947: * jump.c (jump_optimize): Ignore other NOTEs while looking for
1948: a NOTE_INSN_FUNCTION_END.
1949:
1950: * integrate.c (save_for_inline): Flush extra call to max_reg_num.
1951: Don't copy NOTEs that are NOTE_INSN_FUNCTION_END.
1952: (copy_for_inline): Don't copy NOTEs that are NOTE_INSN_FUNCTION_END.
1953:
1954: * stmt.c (optimize_bit_field): If bit field is SRC, strip subregs
1955: from the DEST.
1956:
1957: * expmed.c (expand_mult): Special case for -1 as one operand.
1958:
1959: Mon Aug 29 12:14:51 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
1960:
1961: * stmt.c (expand_goto_internal, expand_fixup): New arg LAST_INSN.
1962: (expand_return): Pass that arg in tail-recursive case.
1963: (other callers): Pass 0 for that arg.
1964: (expand_null_return): Handle HAVE_return nonzero w/ FUNCTION_EPILOGUE.
1965: (expand_null_return_1): New fn, has guts of old expand_null_return.
1966: (expand_return): Call expand_null_return_1 to pass LAST_INSN arg.
1967: (expand_return): Handle HAVE_return nonzero w/ FUNCTION_EPILOGUE.
1968: (expand_function_{start,end}): Likewise.
1969: (expand_cleanups): Fix typo in recursive-list case.
1970: (move_cleanups_up): New fn.
1971:
1972: * expr.c (expand_call): Execute cleanups_of_this_call on exiting.
1973: Notice calls to __builtin_new (but don't do anything about them yet).
1974:
1975: * reload.c (push_reload): If reloading a (SUBREG (MEM ...) ...),
1976: really reload just the MEM in the MEM's own mode.
1977:
1978: * sparc.md: Define patterns for insns that set the ccs.
1979: Define set-flag insns.
1980: New patterns for indexed load, and for optimizing signed bit fields.
1981: (mulsi3, umulsi3): Give "r" constraint to operand 0.
1982: Peephole optimizers recognize some cases where delay insns are safe.
1983: Changed patterns for call and return insns as well.
1984:
1985: * output-sparc.c (single_insn_src_p): New fn.
1986: (output_delay_insn): New fn.
1987:
1988: * tm-sparc.h (TARGET_EPILOGUE): New target flag.
1989: (NOTICE_UPDATE_CC): New clause for funny PARALLEL with a REG in it.
1990:
1991: * m68k.md (movqi): Use *'s to ensure preferencing d-regs.
1992:
1993: * c-parse.y (datadef): If traditional, no warning about no specs.
1994:
1995: Sun Aug 28 14:34:33 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
1996:
1997: * tm-i386.h: Define PROMOTE_PROTOTYPES.
1998: POINTER_BOUNDARY now 32.
1999:
2000: * regclass.c (reg_scan): Compute `max_parallel', max # of sets and
2001: clobbers in any insn in this function.
2002: * global-alloc.c (global_conflicts): Use that, not MAX_SETS_PER_INSN.
2003:
2004: * stmt.c (expand_asm_operands): MAX_SETS_PER_INSN limits # output ops.
2005:
2006: * emit-rtl.c (init_emit_once): Make elt 2 of {f,d}const0_rtx nonzero.
2007:
2008: * c-decl.c (lang_decode_option): Handle -Wwrite-string.
2009: * c-parse.y (combine_strings): If that flag, make array of const char.
2010:
2011: * expr.c (expand_expr): for INTEGER_CST, always use immed_double_const;
2012: never do output_constant_def (it didn't work).
2013: Also heed WORDS_BIG_ENDIAN.
2014:
2015: * varasm.c (output_constant): Handle integer CONST_DOUBLEs.
2016: (output_constant_def): Abort if arg is an INTEGER_CST.
2017:
2018: * emit-rtl.c (gen_rtx): Don't return {f,d}const0_rtx for DImode.
2019:
2020: Sat Aug 27 12:37:23 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
2021:
2022: * c-decl.c (pushdecl): Global extern decls set TREE_PUBLIC
2023: like local ones.
2024:
2025: * integrate.c (expand_inline_function): Handle parms that were
2026: passed in registers but whose homes are on the stack.
2027:
2028: * varasm.c (force_const_mem): Output ints according to spec'd mode.
2029: ({record,compare}_constant_rtx,const_hash_rtx,decode_rtx_const):
2030: Take mode as argument; pass it along.
2031:
2032: * c-parse.y (read_escape): No warning for `\{' or `\['.
2033:
2034: Fri Aug 26 12:23:07 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
2035:
2036: * stmt.c (fixup_memory_subreg): Typo calculating big-endian adjust.
2037:
2038: * vax.md (call_value): Handle >255 args as in `call'.
2039:
2040: Thu Aug 25 16:00:51 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
2041:
2042: * jump.c (delete_jump): Don't delete the cc-setter if it has autoinc.
2043:
2044: Wed Aug 24 16:33:37 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
2045:
2046: * expr.c (expand_expr): For sun with a COND_EXPR, use SUBTARGET
2047: if validate_subtarget says ok.
2048:
2049: * tree.c (build_index_type): make_index_type moved here and renamed.
2050:
2051: * combine.c (move_deaths_2): New function.
2052: (try_distrib): Use that, not move_deaths.
2053:
2054: * tm-sparc.h (SHIFT_COUNT_TRUNCATED, STORE_FLAG_VALUE): Define them.
2055:
2056: * tm-sparc.h: FUNCTION_{PRO,EPI}LOGUE: Save room for ins and
2057: locals to spill to the frame if any ins *or* locals are live.
2058:
2059: * tm-sparc.h (NOTICE_UPDATE_CC): Delete the clause that always
2060: cleared the cc's for unrecognized insns.
2061:
2062: * reload1.c (reload_as_needed): Don't try to use a spill-reg
2063: in a basic block that wasn't spilled: ignore optional reloads.
2064:
2065: Tue Aug 23 09:45:05 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
2066:
2067: * output-sparc.c (output_scc_insn): New function.
2068:
2069: * expr.c (expand_builtin, alloca): Round result of alloca
2070: up to a multiple of STACK_BYTES.
2071:
2072: * toplev.c (compile_file): Default main_input_filename is cc1 input.
2073:
2074: * tm-i386.h (FUNCTION_BOUNDARY): 32 avoids extra prefetch.
2075:
2076: * i386.md (movdi, movdf): Add `&' where needed in constraints.
2077:
2078: Mon Aug 22 11:57:51 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
2079:
2080: * symout.c (symout_finish): Allocate typevector after the symout_types.
2081:
2082: Sun Aug 21 16:10:54 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
2083:
2084: * tm-3b1.h (ASM_FORMAT_PRIVATE_NAME): Use a `_' as well as `%'.
2085:
2086: * expr.c (expand_expr): Typo setting MODE for MAX_EXPR.
2087:
2088: * Makefile (stage*): If ln fails, copy gnulib to stage*.
2089: (realclean): Do `clean' and then some.
2090: (install): new var USER_H specifies headers to copy.
2091:
2092: * c-typeck.c (build_binary_op_nodefault): LT_EXPR, etc.
2093: on ptr vs int failed to set result_type.
2094: (build_conditional_expr): Don't replace nonzero int
2095: with null_pointer_node.
2096:
2097: * combine.c (remove_links, try_distrib): New fns.
2098: (subst): New simplifications for ZERO_EXTEND, SIGN_EXTEND.
2099: (combine_instructions): Call try_distrib.
2100: (FAKE_EXTEND_SAFE_P): Allow SUBREGs.
2101:
2102: * m68k.md (non-FPA pattern for floatsisf2): Typo, had DF for SF.
2103:
2104: Sat Aug 20 12:04:37 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
2105:
2106: * integrate.c (copy_address): Variant of copy_rtx_and_substitute.
2107: (copy_rtx_and_substitute): Use copy_address for MEM address that
2108: doesn't satisfy memory_address_p.
2109:
2110: * reload.c (find_reloads): If force_reload set, don't set WIN
2111: for a MEM even if `m', `o' or `g' in constraint.
2112:
2113: * i386.md (expendqihi2): Typo in asm template.
2114:
2115: * toplev.c (rest_of_compilation): Call clear_const_double_mem.
2116: * varasm.c (init_const_rtx_hash_table): Don't call it here.
2117: (immed_real_const): Don't record the rtx in the REAL_CST node.
2118: (force_const_double_mem, clear_const_double_mem): Use cc0_rtx, not 0,
2119: as flag for a CONST_DOUBLE not on the chain.
2120:
2121: * cccp.c (handle_directive): If traditional, do scan strings
2122: but accept unterminated ones.
2123: (collect_expansion): -traditional: Don't recognize comments in strings.
2124: Stringify arguments that appear within strings.
2125: (skip_quoted_string): -traditional: Always exit at newline.
2126: (macroexpand): -traditional: Don't put `"'s around stringified arg.
2127: (macarg): Set stringified_length accordingly.
2128:
2129: * c-decl.c (duplicate_decls): Avoid error redeclaring fcn after
2130: implicit decl if -traditional.
2131:
2132: * toplev.c (announce_function, report_error_function):
2133: Change communication logic between these fcns.
2134:
2135: * c-decl.c (lang_decode_options): Handle -Wall here.
2136: * toplev.c (main): not here.
2137:
2138: * tm-bsd386.h: Don't include tm-i386.h--be like tm-att386.h
2139:
2140: Fri Aug 19 11:08:36 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
2141:
2142: * config-sun4.h: If sparc, include config-sparc.h.
2143: Never include alloca.h.
2144:
2145: * tm-m68k.h (TARGET_SWITCHES): Define `-mc68020', `-mc68000'.
2146:
2147: * c-decl.c (init_decl_processing): If traditional, use signed sizetype.
2148:
2149: * gcc.c (main): Use stderr for printing version.
2150:
2151: Thu Aug 18 14:42:36 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
2152:
2153: * Version 1.26 released.
2154:
2155: * m68k.md (movsi): Constraint change for fpa regs.
2156:
2157: * reload1.c (choose_reload_targets): Clear reg_reloaded_contents
2158: for all regs of a multi-reg group.
2159:
2160: * reload.c (find_equiv_reg): HARD_REGNO_NREGS wants mode, not size.
2161: Check properly for overlap against multiword reload regs.
2162:
2163: Tue Aug 16 14:54:18 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
2164:
2165: * varasm.c, expr.c (immed_double_const): immed_real_const_2 renamed.
2166:
2167: * tm-i386.h (SFVALUE): Should be `double'.
2168: * tm-i386v.h (SFVALUE): Don't override it.
2169:
2170: * tm-i386.h (ASM_OUTPUT_ASCII): Don't define it.
2171: * tm-att386.h: Definition moved here.
2172:
2173: * tm-bsd386.h: New file, for Sequent.
2174: * tm-seq386.h: New file, for Sequent.
2175: * config-i386.h: New file, for Sequent.
2176:
2177: * expr.c (push_block): Take account of STACK_POINTER_OFFSET.
2178: (expand_call): Therefore need not do so here.
2179:
2180: * optabs.c (expand_fix): Typo if going via DImode.
2181:
2182: * reload1.c (choose_reload_targets): Don't * reload_reg_rtx if 0.
2183:
2184: Mon Aug 15 01:11:49 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
2185:
2186: * integrate.c (copy_for_inline): Don't try copying 0-length vector.
2187: (copy_rtx_and_substitute): Likewise.
2188:
2189: * m68k.md (andsi3): use clrw instead of andw #0.
2190:
2191: * print-tree.c (walk): Don't omit permanent nodes reach from temps.
2192:
2193: * m68k.md (zero_extend...): Reinstall the old zero-extend insns
2194: without names, so they can help the combiner.
2195:
2196: * expr.c (expand_expr): Don't use hard regs as subtargets.
2197: * combine.c (FAKE_EXTEND_SAFE_P): Always consider MEMs safe.
2198: * reload.c (find_reloads): For (SUBREG (MEM ...)) set force_reload.
2199:
2200: * c-parse.y (redescape): Don't warn for `\('.
2201:
2202: * reload.c (find_reloads_address): #if was backwards.
2203:
2204: Sun Aug 14 16:52:22 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
2205:
2206: * c-typeck.c (shorten_compare): Change switch to chain of ifs.
2207:
2208: * tm-ns32k.h (PRINT_OPERAND): CONST_DOUBLE contains a double
2209: even if it's SFmode.
2210: (FUNCTION_PROLOGUE): If MAIN_FUNCTION_PROLOGUE defined, run it.
2211:
2212: * cccp.c (file_buf): Rename field `free' to `free_ptr'.
2213:
2214: * Makefile (ALLOCA, MALLOC, LIBDEPS): New variables for easier
2215: customization. Executables depend on LIBDEPS instead of OBSTACK1.
2216: (cccp): Deps and libs now work like the others.
2217:
2218: * output-i386.c (notice_update_cc): Rewritten for clarity.
2219:
2220: * tm-i386.h (OUTPUT_JUMP): If CC_IN_OVERFLOW, abort.
2221:
2222: * recog.c (push_operand): Test for stack_pointer_rtx.
2223:
2224: * integrate.c (copy_rtx_and_substitute): Don't submit push-operands
2225: to `memory_address'--it would lose on machines where pushing is
2226: a special insn, not an addressing mode.
2227:
2228: * output-i386.c (top_dead_p): No more redundancy--that didn't work.
2229: Now one method if optimized, one for call_insns if noopt, one for
2230: other insns if noopt.
2231: (call_top_dead_p): fp_top_dead_p renamed
2232: and only the call-insn clause remains.
2233:
2234: * i386.md (cmpsf, cmpdf): Output was backwards.
2235: (", tstsf, tstdf): Set CC_IN_80387.
2236: (incb pattern): Restrict allowable registers.
2237: (movsf, movdf): Call top_dead_p only when absolutely necessary.
2238: (call_value): Use top_dead_p, not subroutine.
2239:
2240: Sat Aug 13 15:19:23 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
2241:
2242: * stupid.c (stupid_life_analysis): If only 1 reg class,
2243: call stupid_find_reg only once.
2244:
2245: * stmt.c (expand_function_start):
2246: Clear current_function_pretend_args_size.
2247:
2248: * expr.c (store_constructor): If target is hard reg, go via a pseudo.
2249:
2250: * varasm.c (real_constant_chain): Now static in this file.
2251: (force_const_double_mem): Put R on chain if not already on.
2252: (clear_const_double_mem): Set XEXP (,2) to 0;
2253: also clear real_constant_chain and the chain links.
2254: * emit-rtl.c (init_emit_once): Put 0 in XEXP (,2) of {d,f}const0_rtx.
2255: * cse.c (canon_hash): For CONST_DOUBLE, ignore elts other than 0,1.
2256:
2257: Fri Aug 12 11:48:38 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
2258:
2259: * reload1.c (order_regs_for_reload): Handle REG_ALLOC_ORDER more spots.
2260:
2261: * global-alloc.c (find_reg): error handling REG_ALLOC_ORDER;
2262: also error skipping regs known to be hopeless.
2263: * local-alloc.c (find_free_reg): error skipping hopeless regs.
2264: * stupid.c (stupid_find_reg): likewise.
2265:
2266: * local-alloc.c (qty_compare_1): typo, had q1 for q2.
2267:
2268: * expr.c (expand_expr): Don't use supplied target when optimizing
2269: arithmetic using a comparison or conditional; that target could be
2270: needed for the result of the comparison.
2271:
2272: * reload1.c (reload): Don't set reg_equiv_constant for hard regs.
2273:
2274: * stupid.c (stupid_life_analysis): Ignore reg R if regno_reg_rtx[R]==0.
2275:
2276: * symout.c (symout_finish): Use perm. links in permanent_fwd_refs.
2277:
2278: * i386.md (movhi, movqi): Check no_labels_between_p.
2279:
2280: Thu Aug 11 10:44:46 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
2281:
2282: * c-parse.y (yylex): Out-of-range float is just a warning.
2283:
2284: * tm-gnx-v3.h: New file for Genix.
2285: * ns32k.md (movsi, call, call_value): GNX_V3 conditionals.
2286: * tm-ns32k.h (PRINT_OPERAND_ADDRESS): Changes for Genix.
2287:
2288: * ns32k.md (insv patterns): Operand 0 is read-write.
2289:
2290: * i386.md (tstsf, tstdf): Don't push the arg if already in st(0).
2291:
2292: * varasm.c (output_constant_def): If EXP is permanent, the rtl is too.
2293:
2294: * tm-*.h (ASM_OUTPUT_{LOCAL,COMMON}): New 4th arg, rounded size
2295: vs unrounded size.
2296: * varasm.c (assemble_variable): Pass new arg.
2297: * symout.c (symout_init): Likewise.
2298:
2299: * cccp.c (rescan): Don't let char const cross lines.
2300: (skip_quoted_string, macarg1, discard_comments): Likewise.
2301:
2302: * expr.c (expand_expr, VAR_DECL case): handle flag_force_addr.
2303:
2304: * tm-i386v.h (TAREGT_DEFAULT): Assume 80387.
2305: * config-i386v.h (alloca): Use __builtin_alloca under GNU C.
2306:
2307: Wed Aug 10 11:23:06 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
2308:
2309: * reload.c (find_reloads): Alternative loses
2310: if it has no regs for a reg operand.
2311:
2312: * tm-sun3.h (STARTFILE_SPEC): Define, for fpa's sake.
2313: * tm-m68k.h: New hard regs, reg classes, reg class letters,
2314: target flag and switch, operand syntax and CC handling for fpa.
2315: * m68k.md: Add fpa insn patterns.
2316: * output-m68k.c (standard_SunFPA_constant_p): New fn.
2317: (output_move_const_{single,double}): Handle fpa regs.
2318: (singlemove_string): Handle fpa regs.
2319:
2320: * stmt.c (fixup_memory_subreg): Result had wrong mode.
2321:
2322: * ns32k.md (insv patterns): Adjust bit-number along with address.
2323:
2324: * sparc.md (negdf2, absdf2): Order of the words was backwards.
2325:
2326: * reload1.c (new_spill_reg): End confusion about meaning of 1st arg.
2327: Arg counted_for_nongroups had wrong type.
2328:
2329: * tm-m68k.h (FUNCTION_{PRO,EPI}LOGUE): Round frame size to word bdry.
2330:
2331: Tue Aug 9 07:53:59 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
2332:
2333: * tm-i386.h (ASM_OUTPUT_ASCII): Don't lose the sign bit.
2334:
2335: * tm-i386v.h (STARTFILE_SPEC, LIB_SPEC): Use crt1.o, crtn.o.
2336:
2337: * stmt.c (fixup_var_refs_1): fixup all memory subregs.
2338:
2339: * reload1.c (choose_reload_targets): Don't strip paradoxical
2340: subregs from values to be reloaded.
2341:
2342: * cccp.c: Comment out text after #endif.
2343:
2344: * c-parse.y (init): Allow empty braces as init; warn if pedantic.
2345:
2346: * c-decl.c: Move C-specific options from toplev.c.
2347: * c-tree.h: Move their externs from flags.h.
2348: * c-decl.c (lang_decode_option): New fn called by `main'.
2349: * toplev.c (sorry, really_sorry): New error reporting fns.
2350: * c-decl.c (language_string): New var, name of this language.
2351:
2352: * c-parse.y: Don't include flags.h.
2353: * dbxout.c: Do include it.
2354:
2355: * dbxout.c (dbxout_type): Handle function fields and static fields
2356: and basetypes. Handle METHOD_TYPE and REFERENCE_TYPE.
2357: Abort on unexpected tree code.
2358: (dbxout_args): New fn to output prototype arg types.
2359: (everywhere): Use IDENTIFIER_LENGTH instead of strlen.
2360: (dbxout_type_name): Cleanup; avoid strlen.
2361:
2362: * local-alloc.c (reg_is_set): Don't call {post_,}mark_life for pseudos.
2363:
2364: * tree.h (TYPE_BASECLASSES): New field in type nodes.
2365:
2366: * ns32k.md (insv patterns): Was adjusting the address wrong.
2367:
2368: * c-decl.c (grokdeclarator): Just a warning for inline varargs fn.
2369:
2370: Mon Aug 8 08:16:46 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
2371:
2372: * varasm.c (immed_real_const_2): Guts of creating a CONST_DOUBLE.
2373: * expr.c (expand_expr): Use that for 64-bit int constants.
2374:
2375: * loop.c (invariant_p): Don't check x->unchanging; it's not safe.
2376:
2377: * c-typeck.c (build_indirect_ref): Handle flag_volatile here
2378: so that it propagates to component_refs.
2379: * expr.c (expand_expr): No need to handle it here.
2380:
2381: * integrate.c (save_for_inline, expand_inline_function):
2382: Set up insn_map to record mapping of old uids to copied insns.
2383: (copy_for_inline, copy_rtx_and_substitute): Map 'u' refs via insn_map.
2384:
2385: * emit-rtl (emit_label, emit_barrier): Return what was emitted.
2386:
2387: * sdbout.c (sdbout_filename): Split off from sdbout_init.
2388: * tm-encore.h, tm-3b1.h, tm-vaxv.h, tm-att386.h (ASM_FILE_START):
2389: Call sdbout_filename.
2390:
2391: * toplev.c: Better messages for invalid options.
2392:
2393: * tm-m68k.h (PRINT_OPERAND_ADDRESS): Handle labelref+basereg.
2394:
2395: * tm-3b1.h (PUT_SDB_DIM): Override sdbout's definition.
2396: (ASM_FORMAT_PRIVATE_NAME): Override tm-hp...s definition.
2397: (PUT_SDB_PLAIN_DEF): Prepend `~' to specified name.
2398: (SDB_GENERATE_FAKE): Prepend `~'.
2399:
2400: * gcc.c: Include config.h before obstack.h.
2401:
2402: Sun Aug 7 11:17:56 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
2403:
2404: * stor-layout.c (layout_decl): Do nothing with CONST_DECL.
2405: Treat FRIEND_DECLs like variables.
2406: (layout_record): Handle VAR_DECLs and FUNCTION_DECLs in the fieldlist.
2407: Handle basetypes (almost like fields).
2408: (layout_type): Handle REFERENCE_TYPE and METHOD_TYPE.
2409:
2410: * tree.c (temp_tree_cons): New fn.
2411: (array_type_nelts, simple_cst_equal): New fns.
2412: (lvalue_p): CALL_EXPR is an lvalue if it returns REFERENCE_TYPE.
2413: () Manage TYPE_REFERENCE_TO.
2414: (TYPE_HASH_SIZE): Bigger.
2415: (type_list_equal): Compare the TREE_PURPOSE fields.
2416: (build_reference_type, build_method_type): New fns.
2417:
2418: * stmt.c (block_stack): Add field `cleanups' to each element.
2419: (expand_{start,end}_bindings, expand_decl): Update that field.
2420: (stack_block_stack): Now includes blocks that have cleanups.
2421: (goto_fixup_chain): Add field `cleanup_list_list'.
2422: (expand_goto_internal): Execute cleanups for blocks being exited.
2423: (expand_fixup): Make a fixup if any block has cleanups.
2424: (fixup_gotos): New args CLEANUPS and DONT_JUMP_IN.
2425: Execute cleanups for blocks being exited, or add to cleanup_list_list.
2426: (expand_end_bindings): New arg DONT_JUMP_IN. Execute any cleanups.
2427: (expand_decl): New arg CLEANUP.
2428: (expand_cleanups, fixup_cleanups): New functions.
2429: * c-decl.c: Calls to expand_decl pass new arg.
2430: * c-parse.y: Calls to expand_end_bindings pass new arg.
2431:
2432: * stmt.c (expand_return): Handle INIT_EXPR, or bare RESULT_DECL.
2433:
2434: * stmt.c (case_stack): Add field `has_default' to each element.
2435: (pushcase,expand_end_case): Maintain and use that field.
2436:
2437: * stmt.c (pushcase): Handle RANGE_EXPR cases.
2438: (pushcase_range): Create RANGE_EXPR cases.
2439:
2440: * final.c (final): Always pass 3 args to ASM_OUTPUT_CASE_END.
2441: * tm-3b1.h: Delete offending spaces.
2442:
2443: Fri Aug 5 16:17:16 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
2444:
2445: * integrate.c (copy_rtx_and_substitute): Don't make fp+reg+const
2446: without an intermediate temporary reg.
2447:
2448: * print-tree.c (dump): Don't print an identifier's chain.
2449:
2450: * toplev.c (compile_file): Treat `.i' suffix like `.co'.
2451:
2452: * gcc.c: New config macro CC1_SPEC: extra switches for cc1.
2453: Make a new spec for `.i' files.
2454:
2455: * c-decl.c (pushdecl, finish_decl): Delete duplicate tests.
2456:
2457: * varargs.h: Maybe include va-sparc.h or va-spur.h.
2458: * va-sparc.h: New file.
2459: * va-spur.h: renamed file.
2460:
2461: * tree.h ({TYPE,DECL}_LANG_SPECIFIC): Types and decls can point to
2462: language-specific structures containing other info.
2463: * print-tree.c (dump): Hooks for printing the language-specific
2464: data in types and decls.
2465:
2466: Thu Aug 4 08:54:30 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
2467:
2468: * tree.def: Add some tree codes for C++.
2469:
2470: * Rename files: parse.[yh] -> c-parse.[yh], decl.c -> c-decl.c,
2471: typecheck.c -> c-typeck.c.
2472: Part of tree.c split out to c-convert.c.
2473:
2474: * expr.c (push_block): No longer static.
2475: (expand_expr): Handle REFERENCE_EXPR and INIT_EXPR.
2476: (expand_call): Turn a METHOD_TYPE to a FUNCTION_TYPE.
2477: This is probably not all that is required.
2478:
2479: * parse.y (yylex): Use p->rid to check for `signed' and `inline'.
2480:
2481: * tm-sparc.h (ASM_OUTPUT_SOURCE_LINE): typo.
2482:
2483: * sparc.md: Add a pattern for andcc.
2484: (cmpsf): Clobber reg 32 in DFmode.
2485: (branches): There are no unsigned floating branches; abort.
2486: (bgt): Correct name of floating variant.
2487: (mov?i): Load small constants via mov.
2488: (movdf for constants): Use mov, not add, to move regs.
2489: (movsf, floatsi*, fix*): Simplify reg-to-reg-via-mem move generation.
2490: (trunc*): Use mov, not or, to move regs.
2491: (negsi2, one_cmplsi2): Avoid "neg" and "not" assembler syntax.
2492: (call...): Generate "call" insns; handle #-reg-parms value.
2493: * Define some peepholes for return insns.
2494:
2495: * tm-sparc.h (TARGET_SUN_ASM): New target flag.
2496: (TARGET_DEFAULT): Now 1.
2497: (FRAME_POINTER_REQUIRED): Now 1.
2498: (STARTING_FRAME_OFFSET): Now -16.
2499: (LEGITIMATE_CONSTANT_P): Only CONST_DOUBLEs fail.
2500: (FUNCTION_{PROLOGUE,EPILOGUE}): Rewritten.
2501:
2502: * output-sparc.c (small_int): Test for int that mov can load.
2503: (singlemove_string): Use mov, not add.
2504: (output_move_double): Changes for overlap and for use of ldd, std.
2505: (output_fp_move_double): Use ldd, std when safe.
2506: (make_f0_contain_0): Simplify.
2507:
2508: * integrate.c (expand_inline_function): Some special CALL_INSN
2509: handling no longer needed due to REG_FUNCTION_VALUE_P.
2510:
2511: * m68k.md (movqi): Constraints allow moving areg to areg.
2512:
2513: Wed Aug 3 08:29:31 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
2514:
2515: * Version 1.25 released.
2516:
2517: * integrate.c (expand_inline_function): Don't let MEM be inline_target.
2518:
2519: Tue Aug 2 09:13:37 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
2520:
2521: * integrate.c (INTEGRATE_THRESHOLD): New macro, default dfn here.
2522: (function_cannot_inline_p): Use it.
2523:
2524: * rtl.h (REG_FUNCTION_VALUE_P): New macro.
2525: * stmt.c (expand_function_start): Set that flag in the return reg.
2526: * integrate.c (expand_inline_function, copy_rtx_and_substitute):
2527: Test that flag to test for the return value.
2528: * expmed.c (expand_fixed_bit_field, expand_mult, expand_divmod): ditto.
2529: FUNCTION_VALUE_OUTGOING_REGNO_P no longer needed.
2530:
2531: Mon Aug 1 02:46:08 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
2532:
2533: * integrate.c (copy_rtx_and_substitute): If NO_FUNCTION_CSE,
2534: don't break out constant fcn addresses here.
2535:
2536: * expmed.c (expand_fixed_bit_field): Tests of FUNCTION_VALUE_REGNO_P
2537: were backwards.
2538:
2539: Sun Jul 31 13:10:07 1988 Richard Stallman (rms at frosted-flakes.ai.mit.edu)
2540:
2541: * recog.c (indirect_operand): New function.
2542:
2543: * output-i386.c (print_operand): define %*. eliminate %s.
2544: (fp_top_dead_p): In nonopt case, skip stack-adjusts while looking
2545: for the insn that uses the function value.
2546:
2547: * varasm.c (text_section, data_section): New functions.
2548: Replaced explicit printfs elsewhere with calls to them.
2549: * final.c (final_start_function): Use these fns.
2550: * sdbout.c (sdbout_one_type): Use text_section.
2551: * tm-att386.h (ASM_OUTPUT_LOCAL): Use data_section.
2552:
2553: * expr.c (prepare_call_address): Don't pass const via reg if no -O.
2554:
2555: * tm-sparc.h (FUNCTION_{PROLOGUE,EPILOGUE}) Round the size of saved
2556: registers. Fix bug counting saved registers.
2557:
2558: * tm-sparc.h (ASM_OUTPUT_SOURCE_LINE): Define this macro.
2559:
2560: * tm-sparc.h (DEFAULT_SIGNED_CHAR): Now 1.
2561:
2562: * expr.c (expand_builtin, alloca case): Adding stack offset needs
2563: special code if TARGET is a MEM.
2564:
2565: * dbxout.c (dbxout_init): Define Ltext: after the reference to it.
2566:
2567: * tm-3b1.h (ASM_OUTPUT_CASE_LABEL): `short 0' triggers assembler bug;
2568: `short L%nn-L%nn' supposedly works.
2569:
2570: Sat Jul 30 00:25:52 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
2571:
2572: * sparc.md (floatsidf2): Minor change in output.
2573: (fix_trunc{sf,df}si2): Similar.
2574:
2575: * output-sparc.c (output_fp_move_double): Minor change in output.
2576:
2577: * stmt.c (assign_parms): Don't count stack space for struct value
2578: address if the function does not have one.
2579:
2580: * sdbout.c: Output .dim's and total size for arrays.
2581: Detect bit-fields properly.
2582: Changed handling of structure tags.
2583:
2584: * reload1.c (new_spill_reg): counted_for_nongroups is a new arg;
2585: store 1 in it if this reg is needed for max_nongroups.
2586:
2587: * reload1.c (choose_reload_targets): Allow inheritance of DFmode
2588: if it needs only one register.
2589:
2590: * reload1.c (choose_reload_targets): Delete the death-note from the
2591: store-insn of an inherited reload if PRESERVE_DEATH_INFO_REGNO_P.
2592:
2593: * reload.c (push_reload): Crash if PREFERRED_RELOAD_CLASS is NO_REGS.
2594: (find_reloads): Smarter handling of forcing CONST_DOUBLE into mem.
2595: Check PREFERRED_RELOAD_CLASS & do this if it says NO_REGS.
2596:
2597: * reload.c (subst_indexed_address): Handle case with 2 regs
2598: and no constant term.
2599:
2600: * local-alloc.c: New variable qty_n_refs, set from reg_n_refs
2601: and tested in qty_compare{,_1}.
2602: (combine_regs): Update qty_n_refs.
2603: Update qty_preferred_or_nothing more intelligently.
2604:
2605: * regclass.c (regclass, reg_class_record, record_address_regs):
2606: Count the number of refs to each reg along with the costs,
2607: and use it when computing the preferred_or_nothing flag.
2608: (Can't use reg_n_refs since that is weighted by loop depth).
2609:
2610: * global-alloc.c (global_alloc): Enable test of OVERLAPPING_REGNO_P
2611: for setting no_global_alloc_regs.
2612:
2613: * expr.c (prepare_call_address): Use force_reg, so it gets a REG_EQUIV.
2614:
2615: * optabs.c (can_{fix,float}_p): Return enum insn_code, not a function.
2616: (init_{fix,float}_tab): Store enum insn_code's in fixtab and floattab.
2617: (expand_{fix,float}): Change calls to can_{fix,float}_p.
2618: Also, use emit_unop_insn to make the actual insns.
2619:
2620: Fri Jul 29 02:42:40 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
2621:
2622: * cccp.c (initialize_char_syntax): If dollars_in_identifiers is 0,
2623: set entries for `$' to 0.
2624: Set entries to 1 rather than incrementing them.
2625:
2626: Tue Jul 26 11:14:22 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
2627:
2628: * varasm.c (assemble_variable): Make SDB output only if top-level.
2629:
2630: * local-alloc.c (reg_is_set): Arg to mark_life is regno, not qty.
2631:
2632: * output-ns32k.c (print_operand_address): New flag SEQUENT_BASE_REGS
2633: * tm-sequent.h: Define that flag.
2634:
2635: * Makefile: add some missing deps.
2636:
2637: * tm-encore.h (ASM_FILE_START): Changed to do nothing.
2638:
2639: * sdbout.c (sdbout_init): Fix two dumb errors.
2640:
2641: * sdbout.c (sdbout_end_epilogue): No longer takes arg.
2642: Examine current_function_decl here, not in caller.
2643: * final.c: Call changed.
2644:
2645: Mon Jul 25 01:32:54 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
2646:
2647: * stor-layout.c (layout_record): Handle PCC_BITFIELD_TYPE_MATTERS.
2648:
2649: * tm-3b1.h (__PTR_TO_INT, __INT_TO_PTR): Define these, to alter
2650: parts of obstack.h.
2651:
2652: Sun Jul 24 17:56:53 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
2653:
2654: * Padding for an arg may now go below or above it; new macro
2655: FUNCTION_ARG_PADDING can now choose which, or can inhibit padding.
2656: This makes for compatibility with PCC.
2657: * expr.h: Default definition of that macro.
2658: * expr.c (emit_push_insn): Put the padding above or below.
2659: (expand_call): Don't count the padding if none wanted.
2660: * stmt.c (assign_parms): Adjust parm stack addr if padded below.
2661: Don't count the padding if none wanted.
2662: * tm-3b1.h: Define FUNCTION_ARG_PADDING: no padding for > 4 bytes.
2663:
2664: * final.c (alter_subreg): Now returns the altered value
2665: (but may still modify the original structure).
2666: Handles (SUBREG:DI (CONST_DOUBLE:DF...)) by returning the CONST_DOUBLE.
2667:
2668: * m68k.md (DImode push): now allows `F'.
2669: * ns32k.md (movdi): now allows `F'.
2670:
2671: * tm-m68k.h (FIX_FRAME_POINTER_ADDRESS):
2672: Handle indexed references to frame pointer.
2673: * tm-i386.h, tm-m88k.h, tm-sparc.h: Likewise.
2674:
2675: * cse.c (predecide_loop_entry): Must search for the loop top label.
2676:
2677: Sat Jul 23 08:53:01 1988 Richard Stallman (rms at frosted-flakes.ai.mit.edu)
2678:
2679: * parse.y (yylex): typo in wide strings.
2680:
2681: * tm-vaxv.h, config-vaxv.h: New files for sysV on vax.
2682:
2683: * config-sun4.h: If sparc and not compiling with GCC, include alloca.h.
2684:
2685: Fri Jul 22 02:38:02 1988 Richard Stallman (rms at frosted-flakes.ai.mit.edu)
2686:
2687: * tree.c (build_real_from_int_cst): CHECK_FLOAT_VALUE at proper place.
2688:
2689: * tm-hp9k320.h ({TEXT,DATA}_SECTION_ASM_OP): Should not include a tab.
2690: * final.c (final_start_function): Don't output a tab before those.
2691:
2692: * sdbout.c (PUT_SDB_EPILOGUE_END): New macro.
2693: * sdbout.c (sdbout_end_epilogue): New function to output the C_EFCN.
2694: Like former sdbout_mark_end_function. Uses that macro.
2695: * final.c (final_end_function): Call that function.
2696: * tm-3b1.h: Override PUT_SDB_EPILOGUE_END like the other PUT_SDB...
2697:
2698: * tm-3b1.h (PRINT_OPERAND_ADDRESS, ASM_OUTPUT_INTERNAL_LABEL,
2699: ASM_OUTPUT_CASE_{LABEL,END}): Put a % in names of internal labels.
2700: (ASM_GENERATE_INTERNAL_LABEL, ASM_OUTPUT_ADDR_{VEC,DIFF}_ELT):
2701: New macros, for same reason.
2702: (FUNCTION_PROFILER): New macro, for % and also to put addr in a0.
2703:
2704: * final.c (output_source_line): For fcn's first line, use lineno 1.
2705: * sdbout.c (sdbout_end_function): Clear sdb_begin_function_line
2706: so can recognize first line of next function.
2707:
2708: * sdbout.c (sdbout_init): Output the .file pseudo here.
2709: * tm-3b1.h, tm-att386.h (ASM_FILE_START): Don't do it here.
2710:
2711: * sdbout.c (PUT_SDB_VAL): Output leading tab, like the other macros.
2712: * tm-3b1.h (PUT_SDB_VAL): Likewise.
2713:
2714: * regclass.c (regclass): Cast enums to int, not char.
2715: * varasm.c (record_constant): Likewise. Avoids 3b1 PCC bug.
2716:
2717: * decl.c (pushdecl): Better choice of error message for extern/static.
2718:
2719: * emit-rtl.c: Do look for STRUCT_VALUE_INCOMING_REGNUM.
2720:
2721: Thu Jul 21 02:13:03 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
2722:
2723: * cse.c (canon_hash): CONST_INT case failed to add to prev. value
2724: of HASH; was inconsistent with cse_insn mem address hashing.
2725:
2726: * m68k.md (divide insns): Alternate 3B1 syntax for `swap' insn.
2727:
2728: Wed Jul 20 18:27:10 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
2729:
2730: * m68k.md: In shift-by-24 patterns, rejects autoincrement memrefs
2731: since they are mode-dependent.
2732:
2733: Tue Jul 19 13:01:38 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
2734:
2735: * parse.y (check_newline): Handle #ident by writing .ident to output.
2736: * cccp.c: Don't handle #ident; delete IDENT_DIRECTIVE conditionals.
2737:
2738: * stmt.c (expand_end_case): In compares, put constant arg second.
2739:
2740: * jump.c (jump_optimize): Delete conditional jump if followed by
2741: an unconditional jump to the same place.
2742:
2743: Mon Jul 18 17:49:13 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
2744:
2745: * emit-rtl.c (init_emit_once): Now STRUCT_VALUE_INCOMING is an
2746: expression for an rtx. It can make a MEM. Likewise STRUCT_VALUE
2747: for outgoing structure value addresses.
2748:
2749: * stmt.c (assign_parms): If incoming struct addr on stack, leave room.
2750: * expr.c (expand_call): If outgoing addr on stack, push it like an arg.
2751:
2752: * PROMOTE_PROTOTYPES means if proto says `char', pass `int'.
2753: * decl.c (get_parm_info): Alter DECL_ARG_TYPE to do this.
2754: * typecheck.c (actualparameterlist): Convert value for this.
2755: * tm-m68k.h: Define PROMOTE_PROTOTYPES.
2756:
2757: Sun Jul 17 14:25:47 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
2758:
2759: * jump.c (jump_optimize): peephole can delete insns following INSN.
2760: Set NEXT after peephole.
2761:
2762: * decl.c (finish_decl): Always restart perm alloc if global.
2763:
2764: * stmt.c (assign_parms): When a float is passed as double, store the
2765: float in low-numbered word. Avoids trouble with parm_map in integrate.
2766:
2767: * vax.md: New pattern for decrement and compare against -1.
2768:
2769: Sat Jul 16 14:18:00 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
2770:
2771: * decl.c (pushdecl): Ignore previous decl if it's really an error_mark.
2772:
2773: * stmt.c (expand_start_case): Make sure case_stmt.start is a NOTE.
2774:
2775: * combine.c (subst): In the simplification for
2776: (set (zero_extract ...) (and/or/xor (zero_extract ...) const)),
2777: require same memory location in both extracts.
2778:
2779: * *386*: New files.
2780:
2781: * cse.c (fold_rtx): Save time in memory address if it didn't change.
2782: Don't replace cheaper expression with coslier one.
2783: (cse_insn): Reenable generation of REG_WAS_0. It wasn't obsolete.
2784:
2785: * cccp.c: `ident' has 5 letters.
2786:
2787: * final.c (output_source_line): SDB can't handle multiple source
2788: files, so ignore line-NOTEs for other files.
2789:
2790: * hard-reg-set.h: New var reg_class_size (# regs in the class).
2791: * regclass.c (init_reg_class): Set it up.
2792:
2793: * reload.c (find_reloads): If an earlyclobber is in a class of size 1
2794: as an output, reload it as input instead of as output.
2795:
2796: * reload1.c (choose_reload_targets): Improve elimimation of spilled
2797: pseudos made dead by reloading: if pseudo is limited to one block
2798: and that block contains just stores, delete all the stores.
2799:
2800: * reload1.c (choose_reload_targets): reg_has_output_reload is now
2801: static and survives through reload pass.
2802: (forget_old_reloads): Don't cancel data on spilled regs of output
2803: reloads of the insn just made.
2804:
2805: * sdbout.c (sdbout_one_type): Go to .text before defining a type.
2806: (sdbout_block): Test against do_block was backwards.
2807:
2808: * stmt.c (expand_end_function): New args to make a NOTE for last line.
2809: * decl.c (finish_function): Pass the args.
2810:
2811: * rtl.c (no_labels_between): New function.
2812: * vax.md (movsi): Call it.
2813:
2814: * print-tree.c (dump): Don't follow chain of a decl.
2815:
2816: * rtl.c (volatile_refs_p): Moved from flow.c.
2817:
2818: Fri Jul 15 13:36:20 1988 Richard Stallman (rms at frosted-flakes.ai.mit.edu)
2819:
2820: * sdbout.c (PUT_SDB...): Allow config to override any of them.
2821: * sdbout.c (PUT_SDB_{BLOCK,FUNCTION}_{START,END}): New macros.
2822: * tm-3b1.h: Override all of them.
2823: * sdbout.c (SDB_GENERATE_FAKE): New macro to create dummy tag name.
2824: (gen_fake_label): Use SDB_GENERATE_FAKE.
2825: * tm-3b1.h: Override its defn.
2826:
2827: * sdbout.c (sdbout_mark_function_end): Unused; deleted.
2828:
2829: * tm-3b1.h: Define SDB_DEBUGGING_INFO.
2830:
2831: Thu Jul 14 01:55:15 1988 Richard Stallman (rms at frosted-flakes.ai.mit.edu)
2832:
2833: * config-sunv4.h: New file for Sunos version 4.
2834:
2835: * tm-sun3.h (CPP_SPEC): Define mc68010 or mc68020, depending.
2836:
2837: Tue Jul 12 15:31:30 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
2838:
2839: * stmt.c (expand_fixup, expand_goto_internal): New functions to
2840: emit a jump that can restore the stack level, even without tree node.
2841: (expand_null_return, expand_exit_loop, etc.): Use expand_goto_internal.
2842: (expand_end_function): Do fixup_gotos after emitting return_label.
2843:
2844: * cse.c (predecide_loop_entry): Avoid using JUMP_LABEL.
2845: * flow.c (find_basic_blocks): Avoid using JUMP_LABEL.
2846:
2847: * flow.c (insn_dead_p): Delete special case for stack-adjust insns.
2848: (life_analysis): Mark those insns with INSN_VOLATILE here.
2849: (mark_used_regs): a SET of a hard reg, in a volatile insn,
2850: always makes its source live.
2851:
2852: Mon Jul 11 10:46:26 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
2853:
2854: * ns32k.md (floatqidf2): Commented out since assemblers warn about it.
2855:
2856: Sun Jul 10 11:49:23 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
2857:
2858: * decl.c (xref_tag): Default the TYPE_MODE of enum xrefs
2859: to avoid making MEM and REG with VOIDmode.
2860:
2861: * vax.md (call): If > 255 args, pop them explicitly.
2862:
2863: Sat Jul 9 10:53:47 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
2864:
2865: * symout.c (symout_types): Fix up forward refs to previously
2866: undefined structure types.
2867: (filter_undefined_types): New function.
2868: (symout_finish, symout_function_end): Output any never-defined structs.
2869: * toplev.c (rest_of_compilation): call symout_function_end.
2870:
2871: * parse.y: Don't declare errno if it's a macro.
2872:
2873: * tm-hp9k320 (FUNCTION_PROFILER): Pass ptr in a0, not d0.
2874:
2875: * typecheck.c (truthvalue_conversion): Flush unnec recursive call.
2876: (build_cond_expr): Bug testing zeroness of IFEXP with TREE_LITERAL.
2877:
2878: * cse.c (fold_cc0): Constants not CONST_INT are certainly nonzero.
2879: * fold-const.c (fold): ADDR_EXPR is not equal to zero.
2880:
2881: * cccp.c (macroexpand): Disable the macro even if traditional.
2882: (rescan): Error if use a disabled macro.
2883:
2884: * combine.c (try_combine): Don't substitute a different reg into
2885: an auto-increment. Handle multiple REG_INC notes in I1 or I2.
2886:
2887: * decl.c (implicitly_declare): Don't reuse old implicit decl.
2888:
2889: * varasm.c (assemble_variable): Avoid syntax err if no DBX and no SDB.
2890: * final.c (output_source_line): likewise.
2891:
2892: * fold-const.c (fold): PLUS/MINUS_EXPR: in case of cancellation,
2893: convert result to original type.
2894:
2895: * regclass.c (reg_class_record): Changed arguments include address
2896: of entire vector of constraints.
2897:
2898: Fri Jul 8 07:59:00 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
2899:
2900: * reload1.c (reload): Find groups of more than 2 registers.
2901:
2902: Thu Jul 7 08:33:07 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
2903:
2904: * expr.c (emit_push_insn): Typo adjusting arg for bcopy
2905: if not STACK_GROWS_DOWNWARD.
2906:
2907: * gnulib.c (_cmpsf2): Value is int, not SFVALUE.
2908:
2909: Wed Jul 6 11:53:46 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
2910:
2911: * tm-encore.h, tm-3b1.h: Replace ASM_FILE_START; output a .file.
2912:
2913: * *m88*: New files for Motorola 88000. They don't really work.
2914:
2915: Tue Jul 5 14:40:03 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
2916:
2917: * local-alloc.c (combine_regs): Don't tie a reg to itself.
2918:
2919: * finxincludes: Make a variable LIB for the target dir.
2920:
2921: * m68k.md (movhi, addhi3, addsi3): Micro-optimize choice of asm insns.
2922:
2923: * expr.c (expand_expr): Use new macros NO_DEFER_POP, OK_DEFER_POP
2924: in several places, to keep stack predictable.
2925:
2926: Mon Jul 4 09:50:18 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
2927:
2928: * integrate.c (function_cannot_inline_p): Increase threshold size.
2929:
2930: * flags.h (use_gdb_dbx_extensions): New variable.
2931: * toplev.c:
2932:
2933: * sdbout.c (PUT_SDB_TAG): Delete duplicate defn.
2934:
2935: * expr.c (expand_expr): For FIX_TRUNC_EXPR to unsigned short/char,
2936: REALLY go via signed int.
2937:
2938: * loop.c (may_trap_p): Was detecting floating arithmetic incorrectly.
2939:
2940: * tm-news800.h (CPP_PREDEFINES): Add sony and sony_news.
2941:
2942: * parse.y (check_newline): Avoid infinite loop at eof.
2943:
2944: Sat Jul 2 10:35:17 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
2945:
2946: * Version 1.24 released.
2947:
2948: * stmt.c (expand_asm_operands): Produce proper no-outputs insn.
2949: * recog.c (asm_noperands): Detect no-outputs insns.
2950: (decode_asm_operands): Likewise.
2951: * reload.c (find_reloads): Likewise (add case ASM_OPERANDS:).
2952:
2953: * local-alloc.c (block_alloc): Tests of qty_compare were backwards.
2954:
2955: * flow.c (life_analysis): Turn off code that finds regs live at
2956: function start and marks them not local to any basic block.
2957:
2958: * cse.c (insert_regs): Fix typo (UNITS_PER_WORD).
2959:
2960: * cccp.c: Define max.
2961:
2962: * expr.c (expand_expr): Put each SAVE_EXPR's reg on save_expr_regs,
2963: if not optimizing.
2964: * stmt.c (expand_function_end): Mark each of those regs live
2965: at the end and also retroactively at the beginning of the function.
2966:
2967: * output-vax.c (print_operand_address): New function from old macro.
2968: * tm-vax.h (PRINT_OPERAND_ADDRESS): Call that function.
2969:
2970: * config-vms.h: If not under GNU C, define X_OK, etc.
2971:
2972: * expr.c (move_by_pieces_1): Use * to call GENFUN.
2973: (expand_expr): Compare DECL_FUNCTION_CODE against an enum const.
2974: (preexpand_calls): Likewise.
2975: * genrecog.c (write_tree): Likewise.
2976: * final.c (final): Use * to call the output function.
2977: * reload.c (push_reload): Rename `noshare' to `dont_share'.
2978:
2979: * genoutput.c (output_epilogue): Put more newlines in insn_outfun.
2980: * genemit (gen_exp): Put in more newlines.
2981:
2982: Fri Jul 1 00:23:57 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
2983:
2984: * global-alloc.c (allocno_compare): Avoid comparisons of floats
2985: since that is sensitive to roundoff errors.
2986:
2987: Thu Jun 30 09:25:40 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
2988:
2989: * sdbout.c (PUT_SDB_{DEF,TAG}): Use ASM_OUTPUT_LABELREF.
2990: (PUT_SDB_PLAIN_DEF): New name for old defn of PUT_SDB_DEF
2991: (sdbout_one_type): Use PUT_SDB_PLAIN_DEF for `.eos'.
2992:
2993: * tree.c (allocation_temporary_p): New fcn.
2994: (all_types_permanent): New variable.
2995: (make_node): If that's set, make each ...TYPE node permanent.
2996: * decl.c (grokdeclarator): If traditional, make decl data permanent.
2997: (finish_decl): Make the rtl permanent too.
2998: * stor-layout.c (layout_type): If type is permanent,
2999: make its layout data permanent too.
3000:
3001: * cccp.c: Choose C++ or C at run time via var `cplusplus'.
3002: Separate cplusplus_include_default from include_default.
3003: Get GNU-specific include directory names from macros
3004: GCC_INCLUDE_DIR and GPLUSPLUS_INCLUDE_DIR.
3005: (main): Initialize based on CPLUSPLUS; `-+' sets it.
3006: * Makefile: Set *_INCLUDE_DIR based on $(libdir).
3007:
3008: Tue Jun 28 09:25:49 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
3009:
3010: * tree.c (copy_node): Round LENGTH up to multiple of sizeof (int).
3011:
3012: * expr.c (emit_push_insn): Avoid using PUSH_ROUNDING if not defined.
3013:
3014: * sparc.md (floatsisf2): Insert missing brace.
3015: (mulsi3): Replace reg_o0_rtx, reg_o1_rtx.
3016:
3017: * tm-sparc.h: Define DBX_DEBUGGING_INFO.
3018:
3019: * parse.y (yylex): If traditional, no error for out-of-range float.
3020:
3021: * Makefile: Comment saying how to compile on an Apollo.
3022:
3023: * tm-sparc.h (ASM_FILE_START): Switch to new calling convention.
3024:
3025: * decl.c (init_decl_processing): Create type nodes for 64-bit ints.
3026: (grokdeclarator): use them for `long long'. Warn only if pedantic.
3027:
3028: * optabs.c (init_optabs): Add missing DImode insn names.
3029:
3030: * expr.c (emit_block_move, emit_push_insn): Use movstrqi if appro.
3031:
3032: * expr.c (convert_move): use extendsidi if appropriate.
3033:
3034: * cccp.c (initialize_builtins): Don't install __STDC__ if traditional.
3035: (main): Call initialize_builtins after option processing.
3036:
3037: * integrate.c (output_inline_function): Set current_function_decl.
3038:
3039: * cse.c (fold_rtx): Typo in avoiding 32-bit shifts.
3040:
3041: * cccp.c: Add forward-decl.
3042:
3043: Mon Jun 27 18:06:42 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
3044:
3045: * hard-reg-set.h (reg_alloc_order): New variable
3046: based on REG_ALLOC_ORDER, a new machine-description macro.
3047: * regclass.c (reg_alloc_order): Define it.
3048: * local-alloc.c (find_free_reg): Handle reg_alloc_order.
3049: * global-alloc.c (find_reg): Likewise.
3050: * stupid.c (stupid_find_reg): Likewise.
3051:
3052: Sun Jun 26 10:47:47 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
3053:
3054: * Version 1.23 released.
3055:
3056: * tm-3b1.h: Define IDENT_DIRECTIVE.
3057:
3058: * tm-encore.h: Define SDB_DEBUGGING_INFO.
3059: Define SCCS_DIRECTIVE and IDENT_DIRECTIVE.
3060:
3061: * output-ns32k.c: Decl of paren_base_reg_printed must be outside fcns.
3062:
3063: * tm-encore.h (ASM_OUTPUT_DOUBLE): Do 0f, not 0l.
3064: (CPP_PREDEFINES): No -Dns32032.
3065:
3066: * sdbout.c: Include syms.h, not storclass.h.
3067: (unnamed_struct_member): Decl was missing.
3068: (PUT_SDB_INT_VAL, PUT_SDB_VAL): Fix typos.
3069: (sdbout_types, sdbout_one_type, sdbout_parms): Fix typos.
3070:
3071: * Makefile: Add file sdbout.o.
3072: Changed comments pertaining to sysV.
3073: Make a separate target `doc' to make the info files.
3074:
3075: * m68k.md (bit-field insns): Use nonimmediate_operand for the thing
3076: to extract from.
3077: * vax.md (QImode bit-field insns): Likewise.
3078:
3079: * recog.c (nonimmediate_operand): Accept any nonconst general operand.
3080:
3081: Sat Jun 25 07:54:42 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
3082:
3083: * cse.c (lookup_as_function): arg to exp_equiv_p was missing.
3084:
3085: Fri Jun 24 09:14:47 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
3086:
3087: * recog.c (memory_operand): Allow (subreg (mem...)).
3088:
3089: Thu Jun 23 07:34:07 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
3090:
3091: * decl.c (finish_enum): Compute minimum value like maximum.
3092: If minimum is negative, install it in the type and make it signed.
3093:
3094: * stor-layout.c (layout_record): STRUCTURE_SIZE_BOUNDARY is minimum.
3095: (layout_type): A RECORD_TYPE or UNION_TYPE must be BLKmode if
3096: any member is BLKmode. This is to prevent putting it in a register.
3097: (layout_decl): If decl's type is BLKmode, the decl *must* be BLKmode.
3098:
3099: * local-alloc.c (find_free_reg): Never allocate the frame pointer reg.
3100:
3101: * tm-sequent.h (PRINT_OPERAND): Bug in SFmode CONST_DOUBLE.
3102: * tm-encore.h: Likewise.
3103:
3104: * flow.c (flow_analysis): Bug in n_basic_blocks error check.
3105:
3106: * stmt.c (expand_asm_operands): Emit no insn if an arg is erroneous.
3107:
3108: Tue Jun 21 08:34:24 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
3109:
3110: * reload.c (find_reloads_address): Write back *loc even if
3111: subst_reg_equivs makes no change, in case subst_index_address did.
3112:
3113: * flow.c: Define macros for -1 and -2 as values of reg_basic_block.
3114: (mark_used_regs): Add an `else'; no change in behavior.
3115: (mark_label_ref): Abort if LABEL_REF doesn't contain a CODE_LABEL.
3116: (find_basic_blocks): Extra error check.
3117:
3118: * output-ns32k.c (print_operand_address): Changes in handling of
3119: register-indirect, and of indexing by sb register.
3120:
3121: Mon Jun 20 04:55:38 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
3122:
3123: * cccp.c (collect_definition): Compute needed space more accurately.
3124: Abort if use more space than was allocated.
3125: (rescan) [USE_C_ALLOCA]: Do alloca (0) after handle_directive.
3126:
3127: * genflags.c (gen_insn): Put parens around defns of HAVE_... macros.
3128:
3129: Sun Jun 19 02:52:53 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
3130:
3131: * expr.c (emit_push_insn): Consider PARM_BOUNDARY when compensating
3132: for size of a pushed arg to bcopy.
3133:
3134: Sat Jun 18 07:20:54 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
3135:
3136: * New files sparc.md, tm-sparc.h, config-sparc.h, output-sparc.c.
3137:
3138: * final.c (final): After an ADDR_{,DIFF_}VEC, do ASM_OUTPUT_CASE_END.
3139: * tm-3b1.h: Define ASM_OUTPUT_CASE_END.
3140: (PRINT_OPERAND_ADDRESS): Ref the case tables via an intermediate symbol
3141: `LDnnn' whose def. is output by ASM_OUTPUT_CASE_END.
3142: (ASM_OUTPUT_CASE_LABEL): Add missing newline.
3143:
3144: * reload.c (find_equiv_reg): Reject a MEM containing an autoincrement.
3145:
3146: Fri Jun 17 06:58:37 1988 Richard Stallman (rms at frosted-flakes.ai.mit.edu)
3147:
3148: * genpeep.c (main): Write `extern' in the decl for `peep_operand'.
3149:
3150: * flow.c (propagate_block): When a dead insn has a REG_RETVAL note,
3151: call mark_set_regs anyway, so that `significant' is updated.
3152:
3153: * jump.c (follow_jumps): New arg IGNORE_LOOPS. If 0, don't follow
3154: the insn at the beginning of a loop that enters the loop; this avoids
3155: interference with loop optimizer.
3156: (jump_optimize, tension_vector_labels): Pass that arg.
3157:
3158: * loop.c (loop_optimize): Mention invalid multiple-entry loops in log.
3159:
3160: * m68k.md (extv, extzv): Fix # of alternatives mismatch in constraints.
3161:
3162: Thu Jun 16 03:06:48 1988 Richard Stallman (rms at corn-chex.ai.mit.edu)
3163:
3164: * genrecog.c (change_state): Was mishandling printing XVECEXP indices
3165: greater than 9.
3166:
3167: * combine.c (subst, simplify_and_const_int): Avoid making SUBREG
3168: of a non-REG.
3169:
3170: * expr.c (expand_expr): For FIX_TRUNC_EXPR to unsigned short/char,
3171: go via signed int.
3172:
3173: * optabs.c (expand_fix): Copy hard_libcall_value reg only once.
3174:
3175: * reload1.c (order_regs_for_reload): Init all elements
3176: of potential_reload_regs to -1.
3177:
3178: * Prevent generation of (set (reg) (plus ... (label_ref ...))).
3179: * explow.c (memory_address_noforce): Like `memory_address' but
3180: never force it into a register.
3181: * expr.c (do_tablejump): Use that.
3182: * m68k.md (casesi): Use that.
3183:
3184: * rtl.h (struct rtx_def, GET_CODE, PUT_CODE): If SHORT_ENUM_BUG,
3185: define the `code' field as a short.
3186:
3187: Wed Jun 15 01:25:57 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
3188:
3189: * gcc.c (CPP_SPEC): New spec set by config.h gives flags to cpp.
3190: * tm-*.h for m68k: Define CPP_SPEC to define __HAVE_FPU__ on
3191: appropriate conditions.
3192:
3193: * combine.c (subst): Simplify (not (minus x 1)) and (neg (minus x y)).
3194:
3195: Mon Jun 13 02:22:43 1988 Richard Stallman (rms at corn-chex.ai.mit.edu)
3196:
3197: * typecheck.c (build_array_ref): Avoid duplicate errmsg if index
3198: is an error-mark.
3199:
3200: Sun Jun 12 23:04:39 1988 Richard Stallman (rms at corn-chex.ai.mit.edu)
3201:
3202: * cccp.c (handle_directive): If -traditional, quotes aren't special.
3203: (rescan): Assume newline ends a string constant.
3204:
3205: * cccp.c, cexp.y: Make all fcns non-static; add some forward decls.
3206:
3207: * various: add static forward-decls for various functions.
3208:
3209: Fri Jun 10 00:25:18 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
3210:
3211: * reload1.c (choose_reload_targets): When writing back an incremented
3212: value (handling reload_inc), write back to the real place, not to
3213: OLDEQUIV (a register that holds the same value).
3214:
3215: * tm-m68k.h (LEGITIMIZE_ADDRESS): Don't give force_operand a target.
3216: This can cause the use of multiple insns with same output reg,
3217: which can confuse cse.
3218:
3219: * loop.c (consec_sets_invariant_p):
3220: If invariant_p ever returns 2, we return 2.
3221: New arg is # of consecutive sets to look for,
3222: since this info is no longer in n_times_set at move_movables.
3223: (scan_loop): If consec_sets_invariant_p returns 2, set m->cond.
3224: (move_movables): check consecutive insns if m->consec && m->cond.
3225:
3226: * tm*.h: ASM_DECLARE_FUNCTION_NAME now takes 3rd arg,
3227: the FUNCTION_DECL node.
3228: * varasm.c (assemble_function): Pass this arg.
3229:
3230: * expr.c (expand_call, expand_builtin [alloca]):
3231: If STACK_POINTER_OFFSET is defined, add it to stack pointer contents
3232: before using it as address of actual data on the stack.
3233: * stmt.c (expand_decl): Likewise.
3234:
3235: * stmt.c (assign_parms): If 1st parm named `__builtin_va_alist'
3236: came in regs, pretend it came on stack.
3237: Handle pretending a BLKmode var came on the stack.
3238: If REG_PARM_STACK_SLOT, count stack space for each parm
3239: even if the parm came in a register; and use that stack space
3240: if the parm needs to be addressable or is BLKmode.
3241: Rearrange to simplify conditionals.
3242:
3243: Thu Jun 9 01:21:29 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
3244:
3245: * local-alloc.c:
3246: `qty_...' vectors' elements for hard-reg-numbers now aren't used.
3247: `reg_qty' elements for hard-reg numbers now aren't used,
3248: and the element for a pseudo is never a hard-reg number.
3249: (local_alloc): No need to reset those elements.
3250: No need to reset elements out of range of prev block's NEXT_QTY.
3251: (reg_is_born, reg_is_set, wipe_dead_reg):
3252: Divide labor in same way for hard regs and pseudos;
3253: simplify using fact that locality-to-basic-block has been precomputed
3254: and recorded in reg_qty; avoid refs to reg_qty[HARDREG].
3255: (reg_is_born, wipe_dead_regs): Block-number arg no longer needed.
3256:
3257: * local-alloc.c (combine_regs): Remove old code for tying hard regs
3258: to pseudos; great simplification results.
3259: Use find_regno_note, not regno_dead_p.
3260:
3261: Wed Jun 8 00:18:04 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
3262:
3263: * reload.c (subst_reg_equivs): Set a flag if anything is changed.
3264: (find_reloads_address): Check that flag to avoid extra work.
3265: Also check early for safe reg+const address and avoid work.
3266:
3267: * reload.c (find_reloads): Use loops instead of bcopy.
3268: Check early for insn with no real constraints, and return.
3269: Also check for move from hard reg to hard reg and return.
3270:
3271: * cse.c (canon_reg): Rewrite for speed; use a switch.
3272: (cse_insn): Don't call find_reg_note if REG_NOTES is 0.
3273:
3274: * cse.c (cse_insn): Store modified SET_SRC even if there's a REG_EQUIV.
3275: Inhibition was needed when the SET_SRC was the only place to find the
3276: equivalent value; now it is in the REG_EQUIV note.
3277:
3278: * stmt.c (expand_asm_operands): If NINPUTS is 0, make vec of no elts.
3279: * regclass.c (reg_scan_mark_refs): Don't lose if XVEC (x,i) is 0.
3280:
3281: Tue Jun 7 03:51:28 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
3282:
3283: * stmt.c (assign_stack_local): If big-endian and MODE is narrow,
3284: the bytes actually used are the least significant.
3285:
3286: * parse.y (skip_white_space): Accept char as arg; let caller read it.
3287: (yylex): Change call.
3288: (check_newline): Return 1st nonwhite char after skipping lines.
3289: (skip_white_space): Change call.
3290: * toplev.c (compile_file): Change call.
3291:
3292: * gcc.c: Pass -traditional to cc1.
3293:
3294: * cse.c (cse_insn): Return very early for (set (reg) (call...)).
3295: Mainly to save time.
3296: (cse-insn) Old code to add REG_WAS_0 note wasted time but did nothing.
3297:
3298: * expr.c (clear_pending_stack_adjust): Really do clear it,
3299: if current fcn doesn't want to be inline.
3300:
3301: * cse.c (cse_insn): Speedup: instead of safe_hash, use canon_hash
3302: or HASHREG.
3303:
3304: Mon Jun 6 21:47:23 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
3305:
3306: * jump.c (rtx_renumbered_equal_p): Reject ADDR_VEC fast.
3307:
3308: * cse.c (cse_insn): Ignore a REG_EQUIV or REG_EQUAL note if the
3309: equivalent value is the same as the SET_SRC of the insn.
3310:
3311: * flow.c (life_analysis): Don't call volatile_refs_p for a CALL_INSN;
3312: just assume value is 1.
3313: (propagate_block): Don't call mark_{used,set}_regs for a stack-pop
3314: since if it isn't dead it has no effect on any useful life data.
3315: (mark_set_1): Return quickly if setting stack-ptr, and almost as
3316: quickly if setting any hard reg.
3317: (mark_used_regs): Likewise for refs.
3318: Also don't scan the vector of an ADDR_VEC or ADDR_DIFF_VEC.
3319: (volatile_refs_p): Likewise.
3320:
3321: * varasm.c (output_constant): Discard NOP_EXPR and CONVERT_EXPR
3322: in integer case (they were for casting a pointer).
3323:
3324: * parse.y (compstmt_or_error): Parse a compstmt after ignoring error.
3325: Use this for fctn body so that an error after store_parm_decls
3326: won't recover to xdecls and call store_parm_decls again.
3327: Typical cause was missing semi at end of last parmdecl.
3328:
3329: * parse.y: Add missing semicolons in actions.
3330: (yylex): Don't use yylloc.
3331:
3332: Sun Jun 5 16:14:40 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
3333:
3334: * typecheck.c (build_array_ref): Check arg types here, to make
3335: error message more accurate (not about "addition").
3336:
3337: Thu Jun 2 02:41:40 1988 Richard Stallman (rms at rice-krispies.ai.mit.edu)
3338:
3339: * cccp.c (collect_expansion): `#' isn't special if -traditional.
3340:
3341: * dbxout.c (dbxout_parms): Don't output a regparm symbol
3342: unless the parm got a hard reg assigned.
3343:
3344: * tm-encore.h (ASM_OUTPUT_DOUBLE): Use 0f... not 0d...
3345:
3346: * tm-vax.h (CHECK_FLOAT_VALUE): Define this.
3347:
3348: Wed Jun 1 17:13:00 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
3349:
3350: * expr.c (expand_call): Have sequence points between args.
3351:
3352: Tue May 31 00:27:06 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
3353:
3354: * expmed.c (store_fixed_bit_field): Avoid shifting by 32.
3355: * cse.c (fold_rtx):
3356: * symout.c (subrange_p): likewise.
3357:
3358: * local-alloc.c (block_alloc): If operands 1 and 2 commute,
3359: try tying output to operand 2 if operand 1 won't do.
3360:
3361: * toplev.c (compile_file): Pass main_input_file to symout_init.
3362:
3363: * tree.c (build_real, build_real_from_int_cst):
3364: Call CHECK_FLOAT_VALUE if it's defined, to report out-of-range values.
3365:
3366: * tree.c (build_real, build_real_from_int_cst): New 1st arg TYPE.
3367: * parse.y (yylex): Pass this arg; requires parsing suffixes first.
3368: * fold-const.c (fold, combine, fold_convert): Pass this arg.
3369: Handling of float binops in `combine' simplified.
3370:
3371: * tm-encore.h (CPP_PREDEFINES): Remove -Dencore since CC lacks it.
3372:
3373: * final.c (output_source_line): Let ASM_OUTPUT_SOURCE_LINE
3374: be used for SDB also.
3375:
3376: Mon May 30 00:21:15 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
3377:
3378: * cse.c (insert): Was inserting in wrong place in list.
3379: (exp_equiv_p): Was failing to check validity when x == y.
3380:
3381: * tree.c (build_pointer_type): Handle saveable_obstack
3382: like current_obstack.
3383:
3384: * decl.c (finish_decl): Error in test for zero-size array warning.
3385:
3386: * reload.c (find_equiv_reg): New arg MODE specifies mode in which
3387: an equivalent value is needed. Equivalence must be good in that mode.
3388: In addition, notice overlap with multiword register modes.
3389: Simplify, knowing that registers have already been renumbered.
3390: It was invalidating memory-goals too easily; setting a reg
3391: only invalidates memory-goal if its address varies.
3392: * reload.c, reload1.c, jump.c: Calls pass the new argument.
3393:
3394: * cccp.c: For correct ANSI, must reject `$' in identifiers.
3395: (dollars_in_ident): Variable says whether to allow them.
3396: (rescan): Handle `$' as randomchar if that's 0.
3397: (main): dollars_in_ident is set to 0 by -$, to 1 by -traditional.
3398: (rescan, do_define): Delete former pedantic warnings for `$'.
3399: (initialize_char_syntax, initialize_builtins): Inits split to two
3400: functions; former is called after options are scanned
3401: so `$' is in is_idchar conditionally.
3402: * gcc.c: For -ansi, pass -$ to cccp.
3403: * toplev.c, flags.h: Define dollars_in_ident.
3404: * parse.y (yylex): Treat $ as punctuation unless dollars_in_ident.
3405: Delete old pedantic warning about $.
3406: * tm-vms.h: Define DOLLARS_IN_IDENTIFIERS as 1.
3407:
3408: * cccp.c (rescan): Preprocessing numbers can have signs, after `e'.
3409:
3410: * integrate.c (expand_inline_function): Abort, don't return failure,
3411: if max_regno is too low. I believe this can't happen.
3412:
3413: * typecheck.c (build_binary_op_nodefault):
3414: For ordered comparisons, no pedantic warning about void *.
3415: For MAX, MIN, ditto, and also don't allow pointer vs 0.
3416:
3417: * typecheck.c (build_unary_op): Don't allow pointer for +.
3418:
3419: * typecheck.c (convert_for_assignment):
3420: Add missing warning for case of unrelated pointer types.
3421: Change criteria for new ANSI C draft.
3422:
3423: * optabs.c (expand_binop): Don't set unused target_is_not_an_operand.
3424:
3425: * fold-const.c (fold_convert): Don't set unused inprec, outprec.
3426:
3427: * emit-rtl.c, parse.y: Delete unused var.
3428:
3429: * stor-layout.c (add_vc_sizes): Unused function deleted.
3430: * loop.c (constant_high_bytes): #if 0 this unused function.
3431:
3432: * gcc.c (fatal): Add missing arg to delete_temp_files.
3433:
3434: * cccp.c (dump_defn_1): Add missing arg to skip_quoted_string.
3435:
3436: * reload.c (find_reloads): If constraints don't fit in an `asm',
3437: print error instead of aborting.
3438:
3439: * regclass.c (reg_class_record): Ignore `&' in constraint.
3440:
3441: Sun May 29 00:20:23 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
3442:
3443: * Makefile: Run ranlib only if /usr/bin/ranlib exists.
3444: Add comment saying what to do on system V.
3445:
3446: * tree.c (suspend_momentary): Switch to the saveable_obstack
3447: for the sake of inline functions.
3448:
3449: * flags.h (enum debugger): New enum for write_symbols.
3450: * toplev.c, varasm.c, final.c: Use the enum constants where appro.
3451: Add calls to sdbout paralleling the calls to dbxout;
3452: put each in the appropriate conditional {SDB,DBX}_DEBUGGING_INFO.
3453:
3454: * toplev.c (main): Delete -noreg option; it's now the default.
3455: Make -O an alias for -opt. Rename -g to -gg. -g is alias for -G.
3456: Accept and ignore -Wtrigraphs.
3457: * gcc.c: Simplify the specs.
3458:
3459: * toplev.c (compile_file), tm-*.h:
3460: ASM_FILE_START is now a statement, not just a string to be output.
3461: Output it *after* determining the real source file name.
3462:
3463: * fold-const.c (fold): Simplify x >= CST to x > CST-1 (CST positive).
3464: To simplify this, canonicalize relationals to put constat last.
3465:
3466: * decl.c (duplicate_decls): Make a 2nd errmsg to show previous decl.
3467:
3468: * cccp.c (file_size_and_mode): Delete temporary VMS bootstrap patch.
3469:
3470: * tm-att386.h: New file.
3471:
3472: * decl.c (pushdecl): Warn if a local `extern' decl precedes
3473: a file-scope `static' decl.
3474:
3475: * expr.c (expand_call): No warning for failure to inline.
3476:
3477: * expmed.c (extract_bit_field): copy operand 1 of extv or extzv
3478: into register if memory isn't allowed.
3479:
3480: Sat May 28 02:10:56 1988 Richard Stallman (rms at sugar-bombs.ai.mit.edu)
3481:
3482: * gnulib.c, Makefile: Delete va_end.
3483:
3484: * final.c, symout.c: Check DBX_DEBUGGING_INFO, not NO_DBX_FORMAT.
3485:
3486: * genemit.c (gen_expand): Notice a CALL inside a PARALLEL.
3487:
3488: * regclass.c (init_reg_sets_1): Part of init_reg_set is put in this
3489: new fn which is called after options are scanned.
3490: Now CONDITIONAL_REGISTER_USAGE can depend on the options.
3491: (fix_register): Just alter the data that init_reg_sets_1 will look at.
3492:
3493: * reload1.c (reload): Don't complain if two different but tieable
3494: modes require groups of the same regclass (assuming same size group).
3495:
3496: * cccp.c: Add 3rd arg to all `open' calls.
3497:
3498: * parse.y (check_newline): Typo prevented ignoring whitespace.
3499:
3500: * cccp.c (perror_with_name): fprintf had harmful extra arg.
3501:
3502: * cccp.c (main, trigraph_pcp): -Wtrigraphs means warn if any trigraphs.
3503:
3504: * emit-rtl.c (gen_sequence): If LEN is 1, avoid looking at PATTERN
3505: of something that doesn't have one.
3506:
3507: * reload1.c (alter_frame_pointer_addresses): frame pointer can
3508: occur by itself, not just inside a PLUS.
3509: (reload): Call eliminate_frame_pointer before reload_as_needed.
3510: Otherwise the latter can make reload insns that copy the frame ptr
3511: to a data reg, but 68k can't copy sp+const to a data reg.
3512:
3513: * decl.c (implicitly_declare): Always save the implicit decl
3514: permanently. Reuse an old one if it exists.
3515: * tree.c (resume_temporary_allocation): Used after `end_temporary...'
3516: to go back to temporary allocation.
3517:
3518: * stor-layout (layout_{type,decl}): Call variable_size.
3519: (variable_size): Turn a size into a SAVE_EXPR and either compute
3520: it right away or put it on a list to be computed later.
3521: (get_pending_sizes): Return that list and clear it out.
3522: * stmt.c (expand_start_function): Tell `variable_size' to compute
3523: sizes right away, and compute those saved on the list.
3524: (expand_end_function): Tell it to put them on a list.
3525:
3526: Fri May 27 00:02:34 1988 Richard Stallman (rms at frosted-flakes.ai.mit.edu)
3527:
3528: * dbxout.c (dbxout_symbol): For local static var, use 'V', not 'v'.
3529:
3530: * gcc.c (main): Don't handle SIGHUP or SIGTERM if shell ignored it.
3531:
3532: * Makefile, gcc.c: Propagate Make var `libdir' to gcc search path.
3533:
3534: * expr.c (expand_expr): a PARM_DECL with no rtl can occur in size of
3535: `a' in `foo (a,i) int i; struct {int x[i];} a;', so report an error.
3536:
3537: * flow.c (insn_dead_p): insn that makes stack bigger is never dead.
3538: * combine.c (try_combine): Don't splice out stores into stack ptr.
3539:
3540: * reload.c (find_equiv_reg): Test given regno for OVERLAPPING_REGNO_P.
3541:
3542: * varasm.c (assemble_variable): Use saveable_obstack for allocation.
3543:
3544: Thu May 26 01:17:00 1988 Richard Stallman (rms at frosted-flakes.ai.mit.edu)
3545:
3546: * integrate.c (save_for_inline): Clear unused slots in parmdecl_map.
3547: (There may be some non-parm regs below max_parm_regno.)
3548: * integrate.c (copy_for_inline): Don't crash if parmdecl_map elt is 0.
3549:
3550: * Don't fail to output a static inline function that was referenced
3551: via a local extern decl before its definition.
3552: * expr.c (expand_call): If need to mark a fcn decl addressable,
3553: mark the identifier addressable also.
3554: * typecheck.c (mark_addressable): If marking fcn addressable,
3555: mark the identifier as well.
3556: * decl.c (start_function): If identifier was marked addressable,
3557: propagate it to the function.
3558:
3559: * parse.y (yylex): Check for ERANGE after atof is called.
3560: (Sun doesn't report ERANGE.)
3561:
3562: * loop.c (may_trap_p): Any floating arithmetic may trap.
3563:
3564: Wed May 25 00:03:34 1988 Richard Stallman (rms at frosted-flakes.ai.mit.edu)
3565:
3566: * parse.y: Delete `noalias'.
3567: (asm_operand): Don't allow this to be empty.
3568: (asm_operands): Do allow this to be empty.
3569:
3570: * reload.c (operands_match_p): Don't let REG and SUBREG match
3571: if the reg isn't a hard reg.
3572: No longer nec. to check reg_renumber, now that reload
3573: substitutes the hard regno.
3574:
3575: * reload1.c (reload): Counting existing spilled groups,
3576: check HARD_REGNO_MODE_OK so we don't get fooled by an odd-even pair.
3577: Spill entire need for new groups before spilling any solitary regs.
3578: Reg already counted against max_nongroups can't become part of a group.
3579: (new_spill_reg): Do bookkeeping associated with a new spill-reg.
3580: (n_spills): This var is now static, no longer passed as arg
3581: within the file.
3582:
3583: (reload_reg_class_lower): Handle all group-reloads before solitaries.
3584: (choose_reload_targets): therefore #if 0 the special code for
3585: finding solitary registers that aren't suitable for groups.
3586: But fix two bugs in it: braino deciding whether a reload
3587: is looking for 1 register (not a group). Use CLASS_MAX_NREGS.
3588: Also braino deciding whether a spill reg can be in a group.
3589: Did not fix bug that it fails to test HARD_REGNO_MODE_OK,
3590: so it might split up an even-odd pair.
3591:
3592: * vax.md: Special patterns for 8 and 16-bit fields, to make
3593: move-insns (like the ones for the 68k).
3594:
3595: * tree.c (convert_to_integer): Pass truncation down thru COND_EXPR
3596: as through a binary operator.
3597:
3598: * typecheck.c (build_cond_expr): If unpromoted operand types match,
3599: don't promote them--let containing expression promote (just once).
3600:
3601: Tue May 24 14:46:26 1988 Richard Stallman (rms at frosted-flakes.ai.mit.edu)
3602:
3603: * combine.c (subst): Simplify (subreg (sign_extend X) 0).
3604:
3605: * tm-hp9k320.h: Delete NO_DBX_FORMAT.
3606: * Most tm...h files: Define DBX_DEBUGGING_INFO.
3607: * dbxout.c: Change conditional to DBX_DEBUGGING_INFO.
3608:
3609: * integrate.c (expand_inline_function): If inline fcn was declared to
3610: return QI, but actually computes an SI, use SImode for INLINE_TARGET
3611: but actually return a QI.
3612:
3613: * varasm.c (force_const_mem): Failed to determine alignment bdry
3614: from machine mode.
3615:
3616: * jump.c (jump_optimize): Don't delete (move X Y) if X or Y is a
3617: PRESERVE_DEATH_INFO_REGNO_P register.
3618:
3619: * final.c (output_addr_const): In PLUS, output constant term last.
3620:
3621: * final.c (final): Before outputting an insn, do FINAL_PRESCAN_INSN.
3622:
3623: * final.c (next_block_index): No longer static.
3624: (final): Add SDB_DEBUGGING_INFO cases for outputing NOTEs
3625: for beginning and end of a block.
3626: (output_source_line): Add SDB_DEBUGGING_INFO case for line number.
3627: * varasm.c (assemble_function): Add code for SDB symbol output.
3628:
3629: * gnulib.c: Allow config to override INTIFY.
3630: New macro SFVALUE for data type to return a single-float in.
3631:
3632: * combine.c (remove_death): No longer `static'.
3633:
3634: * reload1. (choose_reload_targets): PRESERVE_DEATH_INFO_REGNO_P
3635: selects hard regs for which death info should be updated for final.
3636:
3637: * reload1.c (reload_as_needed): Let INSN_CLOBBERS_REGNO_P
3638: prevent inheritance of certain reloads.
3639:
3640: * reload.c (find_equiv_reg): Let OVERLAPPING_REGNO_P reject
3641: an equiv reg. Needed for funny float regs on 80387.
3642:
3643: * cccp.c (do_ident): Define #ident as a no-op if IDENT_DIRECTIVE.
3644: Warn if pedantic.
3645: (do_sccs): Warn if pedantic.
3646:
3647: * emit-rtl.c (restore_reg_data): Set cur_insn_uid--prevent duplicates.
3648:
3649: Sun May 22 12:25:06 1988 Richard Stallman (rms at frosted-flakes.ai.mit.edu)
3650:
3651: * Version 1.22 released.
3652:
3653: * reload1.c (reload): Spilling isn't finished till max_nongroups is 0.
3654:
3655: * tm-encore.h (PRINT_OPERAND): No `$' before a CONST.
3656:
3657: Sat May 21 13:08:54 1988 Richard Stallman (rms at frosted-flakes.ai.mit.edu)
3658:
3659: * fold-const.c (combine): Typo in MIN_EXPR, MAX_EXPR.
3660:
3661: * reload1.c (reload): Was counting insn_groups as total size of groups,
3662: not number of groups.
3663: A new spilled group counts against group-needs of superclasses.
3664:
3665: * parse.y (parmlist{,_or_identifiers}_1): In error case,
3666: return a tree list just as in the other cases.
3667:
3668: Fri May 20 02:14:51 1988 Richard Stallman (rms at frosted-flakes.ai.mit.edu)
3669:
3670: * config-vax.h, config-m68k.h: If __GNUC__, use builtin-alloca.
3671:
3672: * genpeep.c (match_rtx): Generated code was testing the wrong rtx
3673: when testing an int or string at a nonzero index in the rtx.
3674:
3675: * reload.c (find_reloads): Typo checking `modified' for conflict
3676: with an earlyclobber.
3677:
3678: * reload.c (find_equiv_reg): Reject stack ptr as return value.
3679:
3680: * expr.c (expand_builtin): Alloca must do pending stack adjust.
3681:
3682: Thu May 19 13:01:01 1988 Richard Stallman (rms at frosted-flakes.ai.mit.edu)
3683:
3684: * flow.c (propagate_block): Skipping back across libcall didn't happen
3685: due to failing to set PREV.
3686:
3687: * expr.c (emit_library_call): Code to increment and decrement
3688: current_args_size broke since emit_call_1 was changed to restore it.
3689:
3690: * combine.c (try_combine): When i1 or i2 auto-incs a reg, don't combine
3691: if i3 uses that reg.
3692:
3693: * config-hp9k3.h: #define bcopy, bcmp, bzero here.
3694: * conf-hp9k320.h: Delete file.
3695:
3696: * integrate.c: Don't include strings.h--no need.
3697:
3698: * stmt.c (expand_asm_operands): Don't make zero-length vectors.
3699:
3700: * loop.c (scan_loop): After a fcn call, maybe-trap insns can't move.
3701: The fcn call might exit and that would prevent the trap.
3702:
3703: * reload1.c (reload): Set reload_first_uid to next uid to be used.
3704: * reload.c (find_equiv_reg): Use reload_first_uid to ignore insns
3705: that are due to reloading--only if reload_reg_p is not 0 or 1.
3706:
3707: Wed May 18 22:11:20 1988 Richard Stallman (rms at frosted-flakes.ai.mit.edu)
3708:
3709: * typecheck.c (build_unary_op): Don't complain about array
3710: as argument to `!'.
3711:
3712: * decl.c (pushdecl): If locally declaring an extern function,
3713: check the identifier's global value in case it's an inline function.
3714:
3715: Mon May 16 03:06:08 1988 Richard Stallman (rms at frosted-flakes.ai.mit.edu)
3716:
3717: * output-ns32k.c (output_shift_insn): New fn, maybe turn shift to adds.
3718: (reg_or_mem_operand): Predicate for a non-immediate general_operand.
3719: * tm-ns32k.h (CONST_OK_FOR_LETTER_P): Define letter K.
3720: * ns32k.md: Use output_shift_insn for various addr insns that shift.
3721: Don't allow nonexplicit constants in lprd, multiply or truncate insns.
3722: Use reg_or_mem_operand for constraint in op1 of divide insns;
3723: a constant there causes regclass to screw up.
3724: Split alternative constraints on the bit-field insns to avoid
3725: out-of-range operands in exts, inss. Some cases of extraction
3726: can be done faster via memory.
3727:
3728: * flow.c (mark_set_1): When adding a REG_DEAD note, inc reg_n_deaths.
3729:
3730: * dbxout.c (dbxout_type_def): Do nothing for {integer,char}_type_node.
3731:
3732: Sun May 15 00:56:44 1988 Richard Stallman (rms at frosted-flakes.ai.mit.edu)
3733:
3734: * tm-sequent.h, tm-ns32k.h, tm-encore.h (PRINT_OPERAND):
3735: Was treating SF's as SI's.
3736:
3737: * expr.c (emit_move_insn): Check all CONST_DOUBLEs for
3738: LEGITIMATE_CONSTANT_P and put them in memory if not.
3739:
3740: * local-alloc.c (combine_regs): Allow a reg to be tied to a qty
3741: if the reg's class is contained in the qty's class
3742: (as well as if the reg's class contains the qty's class as before).
3743: Rename qty_reg_class to qty_min_class and make it the smallest
3744: class of any reg tied to the qty.
3745: (reg_class_subset_p, reg_meets_class_p, update_qty_class):
3746: New subroutines to implement this.
3747: (local_alloc): Init reg_qty to -1 for pseudos not in cur. basic block.
3748: (reg_is_born): Abort if pseudo not in basic block has -2 in reg_qty.
3749:
3750: * jump.c (rtx_renumbered_equal_p): Insist that modes of REGs match.
3751:
3752: Sat May 14 01:05:35 1988 Richard Stallman (rms at lucky-charms.ai.mit.edu)
3753:
3754: * stmt.c (expand_return): Empty frame frame_offset isn't nec. 0.
3755:
3756: * expr.c (emit_call_1): Use stack_size_rtx everywhere appropriate.
3757:
3758: * decl.c (init_decl_processing): Set sizetype to `unsigned long'
3759: if `int' is less than a word.
3760:
3761: * stddef.h (size_t, ptrdiff_t): Both are now long.
3762:
3763: Fri May 13 01:06:00 1988 Richard Stallman (rms at lucky-charms.ai.mit.edu)
3764:
3765: * emit-rtl.c (gen_lowpart): Handle non-lowpart subreg as arg.
3766:
3767: * recog.c (register_operand): VOIDmode means allow any mode.
3768: (immediate_operand, nonmemory_operand): Likewise.
3769:
3770: * emit-rtl.c (classify_insn): Update for changed CALL_INSN format.
3771: (emit): New function to emit an rtl pattern as the right kind of insn.
3772: * jump.c (simplejump_p): No longer static.
3773:
3774: * genemit.c (gen_expand): For match_operand at top level, call `emit'.
3775: Use `emit_call_insn' when appropriate.
3776: (gen_exp): Handle rtx's that contain strings.
3777:
3778: * final.c, symout.c: If not NO_DBX_FORMAT, include stab.h to get the
3779: N_... symbols. Use their default definitions only if they're undef.
3780:
3781: * expr.c (expand_call) [no PUSH_ROUNDING]: Always set argblock
3782: if there are any stack-passed arguments.
3783:
3784: * typecheck.c (build_unary_op): Mark all increment-exprs volatile.
3785:
3786: * recog.c (reg_renumbered_fits_class_p): Delete private copy of
3787: reg_class_contents.
3788:
3789: * reload1.c (forget_old_reloads): Handle PARALLEL case by recursion.
3790: Explicit store into a spilled reg invalidates old reloaded contents;
3791: this can occur when we drop through into a basic block whose need was 0
3792: (and so whose local pseudos were not spilled).
3793:
3794: * gcc.c (main): If -v, print gcc's own version; also no error msg
3795: if no input files.
3796:
3797: * loop.c (may_trap_p): Mem ref to nonconstant address may trap.
3798: (scan_loop): Check may_trap_p only when insn is in other respects ok.
3799:
3800: * cexp.y: #include config.h (for decl of alloca on some machines).
3801:
3802: Thu May 12 17:24:19 1988 Richard Stallman (rms at frosted-flakes.ai.mit.edu)
3803:
3804: * regclass.c (regclass): When inserting an insn at start of block,
3805: update basic_block_head.
3806:
3807: Wed May 11 00:47:09 1988 Richard Stallman (rms at corn-chex.ai.mit.edu)
3808:
3809: * stmt.c (assign_parms): DECL_OFFSET should be offset as passed
3810: (not including big-endian width-change correction).
3811:
3812: * typecheck.c (shorten_compare): Set unsignedp[01] right in case
3813: where get_narrower makes no change.
3814: (build_binary_op_nodefault): Likewise for shortening shifts.
3815:
3816: * stmt.c (expand_end_case): Use type_for_size to get the type
3817: to convert the index to, since `int' is wrong if -mshort.
3818:
3819: * decl.c (grokdeclarator): Don't check PARM type for completeness.
3820: (grokparms): If fn definition, check all parm types for completeness.
3821: (store_parm_decls): Likewise.
3822:
3823: Tue May 10 22:42:13 1988 Richard Stallman (rms at corn-chex.ai.mit.edu)
3824:
3825: * typecheck.c (store_init): For invalid init, store error_mark_node.
3826: * varasm.c (assemble_variable): Ignore error_mark as an init.
3827: * stmt.c (expand_decl): If init is error_mark, init to 0 if possible.
3828: This avoids a spurious "uninitialized variable" warning.
3829:
3830: Sun May 8 17:08:07 1988 Richard Stallman (rms at lucky-charms.ai.mit.edu)
3831:
3832: * tm-hp9k320.h: Define STRUCTURE_SIZE_BOUNDARY.
3833:
3834: * decl.c (get_parm_info): Replaces get_parm_types. Returns a tree_list
3835: containing parmdecls and tag list as well as type list.
3836: (grokparms): Accept that tree_list as argument.
3837: (grokdeclarator): Calling grokparms, say "not a definition" for the
3838: function declarators for arg or value types within a definition.
3839:
3840: * parse.y: Call get_parm_info.
3841: (parmlist_or_identifiers): If identifiers, make a tree_list
3842: like the one get_parm_info returns.
3843:
3844: Fri May 6 16:44:19 1988 Richard Stallman (rms at frosted-flakes.ai.mit.edu)
3845:
3846: * m68k.md (casesi): Delete template aside from match_operand's.
3847:
3848: * tm-encore.h: New file from Robert Brown.
3849:
3850: * ns32k.md: Use %c in some addr insns.
3851: (tst*): Use {d,f,}const0_rtx to make the constant 0; OS-independent.
3852: (call, call_value): Use %? before address in a bsr.
3853:
3854: * output-ns32k.c (print_operand_address): To output a local label,
3855: use `output_asm_label'.
3856: Make SEQUENT_ADDRESS_BUG conditionals happen at compile time.
3857:
3858: * tm-ns32k.h: Delete SEQUENT_HAS_FIXED_THEIR_BUG.
3859: (PRINT_OPERAND): Output nothing for `%?'.
3860: * tm-sequent.h: (PRINT_OPERAND): Output nothing for `%?'.
3861:
3862: * final.c (output_asm_label): No longer `static'.
3863:
3864: Thu May 5 09:03:37 1988 Richard Stallman (rms at frosted-flakes.ai.mit.edu)
3865:
3866: * explow.c (memory_address): Ignore flag_force_reg unless optimize.
3867: Also ignore it for addresses of stack slots (avoid invalid REG_EQUIVs).
3868:
3869: * typecheck.c (digest_init): If traditional, allow `char x[100]=0;'.
3870:
3871: * tree.c (get_unwidened): Don't alter a COMPONENT_REF if
3872: innerprec equals the precision of the existing type.
3873: It was changing pointers to integers.
3874:
3875: * m68k.md (movdi): Put all fpregs in separate constraint alternatives
3876: and handicap them so spill reg won't be an fp reg.
3877:
3878: * parse.y (yyerror): Use the arg as part of the error message.
3879:
3880: * decl.c (start_function): Give the RESULT_DECL type int rather
3881: than char or short.
3882: * typecheck.c (c_expand_return): Convert value from fn's return type
3883: to the RESULT_DECL's type.
3884:
3885: * Avoid generating dbx xrefs to enums, since dbx loses on them.
3886: Do this by outputting all types in order of definition.
3887: This is done only for top-level types; problem remains for local ones.
3888:
3889: * decl.c (finish_decl): Do rest_of_decl_compilation for TYPE_DECLs.
3890: * toplev.c (rest_of_decl_compilation): Do dbxout_symbol for them.
3891:
3892: * dbxout.c (dbxout_symbol): Check DECL_RTL only for fns and variables.
3893: For a TYPE_DECL, ignore it if the type was already output
3894: and its preferred name is the TYPE_DECL. Else output type in full.
3895:
3896: * decl.c (pushdecl): Don't prefer typedef names to type tag names.
3897:
3898: * stor-layout.c (chain_type): Build chain in forward order.
3899:
3900:
3901: * tm-3b1.h (ASM_OUTPUT_CASE_LABEL): Error getting length of table.
3902:
3903: * tm-3b1.h: #define SGS_3B1 was missing.
3904:
3905: * typecheck.c (build_compound_expr): Ignore non-volatile subexprs.
3906:
3907: * fold-const.c (fold): Simplify (unsigned) foo >= 0, etc.
3908:
3909: * stor-layout.c (layout_type): Set TYPE_PRECISION of ptr types.
3910:
3911: Wed May 4 08:06:25 1988 Richard Stallman (rms at frosted-flakes.ai.mit.edu)
3912:
3913: * parse.y: Don't use the Bison @ construct, since it makes parser slow.
3914:
3915: * decl.c (finish_function): Delete FILENAME and LINE args.
3916:
3917: * typecheck.c (digest_init): No pedantic warning for array="string".
3918:
3919: Tue May 3 09:09:30 1988 Richard Stallman (rms at frosted-flakes.ai.mit.edu)
3920:
3921: * toplev.c (main): Ignore `-Wcomment'.
3922: * gcc.c: Pass -Wall to cpp (which treats it like -Wcomment).
3923:
3924: * tm-isi68.h: Greatly simplified; now works only with GAS.
3925:
3926: * tm-m68k.h (EMPTY_FIELD_BOUNDARY): now 16 (right on Sun, ISI and HP).
3927: * tm-sun3.h: No need to redefine it.
3928:
3929: * decl.c (finish_struct): Don't ever make DECL_ALIGN smaller.
3930:
3931: * decl.c: Rename min, max to MIN, MAX.
3932:
3933: * typecheck.c (convert_for_assignment): Avoid warning if assigning
3934: a `void *' from a `const void *'.
3935:
3936: * combine.c (FAKE_EXTEND_SAFE_P): Turn off for mem refs; avoid faults.
3937:
3938: Mon May 2 07:28:27 1988 Richard Stallman (rms at frosted-flakes.ai.mit.edu)
3939:
3940: * tm-vax.h: Support -mg switch to use g-float instead of d-float.
3941: New macros TARGET_G_SWITCH, ASM_DOUBLE_CHAR.
3942: Changes in TARGET_SWITCHES, ASM_OUTPUT_DOUBLE.
3943: Define code `#' for PRINT_OPERAND.
3944: * vax.md: use `#' in opcodes for doubleword float.
3945:
3946: * tm-vax.h: Define UDIVSI3_LIBCALL and UMODSI3_LIBCALL.
3947:
3948: * cccp.c (main, do_include): Implement -I- switch.
3949:
3950: * jump.c (jump_optimize): When hunting NOTE_INSN_FUNCTION_END,
3951: skip final RETURN (found on the vax).
3952:
3953: * toplev.c (main): -Wall is equiv to all -W switches combined.
3954:
3955: * stmt.c (expand_decl, expand_end_bindings,
3956: expand_{start,end}_function). The -noreg treatment of `register' vars
3957: is extended to vars used as addresses of vars in memory (varying-size
3958: structures).
3959: (use_variable): Emit USE for regs used in specified rtx.
3960:
3961: * cse.c (fold_cc0): Stack-frame addresses are always nonzero.
3962: (fold_rtx): 0200 bit in prev_insn_cc0 means only zeroness is known.
3963:
3964: * parse.y (parmlist): poplevel needs 3 args.
3965:
3966: Sun May 1 07:20:34 1988 Richard Stallman (rms at frosted-flakes.ai.mit.edu)
3967:
3968: * decl.c (start_function): typo checking for incomplete return type.
3969:
3970: * emit-rtl.c (restore_reg_data): If a pseudo appears nowhere,
3971: don't leave its slot empty; create a pseudo for that slot.
3972:
3973: * Version 1.21 released.
3974:
3975: * expr.c (expand_call): Merge duplicate code for structure_value_addr.
3976:
3977: * emit-rtl.c (restore_reg_data): Delete error check; it's legit for
3978: a pseudo reg to appear nowhere in the rtl.
3979:
3980: Sat Apr 30 07:35:31 1988 Richard Stallman (rms at frosted-flakes.ai.mit.edu)
3981:
3982: * integrate.c (copy_rtx_and_substitute): Fix typo for arg_pointer_rtx.
3983:
3984: * decl.c (poplevel): Undo previous change with #if 0.
3985:
3986: * stmt.c: `struct nesting' now records the depth on the stack.
3987: Each expand_start... must update and record the depth;
3988: each expand_end... uses macro POPSTACK to pop.
3989: This way, if a level isn't explicitly popped, it won't cause
3990: circular structure.
3991:
3992: * dbxout.c (dbxout_type): Replace with main variant only if incomplete.
3993:
3994: * typecheck.c (build_unary_op): Test of `pedantic' was backwards.
3995:
3996: * expr.c (STACK_BYTES): Typo in definition.
3997:
3998: * typecheck.c (build_binary_op_nodefault): Rename code1 to code0,
3999: and likewise for code2, tt1, tt2.
4000:
4001: * expr.c (expand_call): Wrong arg order for warning_with_decl.
4002:
4003: Fri Apr 29 08:41:06 1988 Richard Stallman (rms at frosted-flakes.ai.mit.edu)
4004:
4005: * integrate.c (copy_decl_tree): New arg is depth in recursion.
4006: Always discard the outermost LET_STMT being copied; never discard any
4007: others. This way the copied LET_STMTs correspond to the copied NOTEs.
4008:
4009: * varasm.c (decode_rtx_const): For SYMBOL_REF, use string address
4010: not address of the rtx. Library fns have only one copy of the name
4011: but many copies of the SYMBOL_REF.
4012:
4013: * expr.c (emit_call_1): New arg OLD_ARGS_SIZE is used to reset
4014: current_args_size.
4015: (emit_library_call, expand_call): Pass new arg; don't restore it here.
4016:
4017: * flow.c (life_analysis): Don't mark sp live at end if fn is empty.
4018:
4019: * parse.y (parse_or_identifiers_1): Handle `error' in here, not in
4020: callers notype_declarator etc. Also read the closeparen here.
4021:
4022: Thu Apr 28 12:43:52 1988 Richard Stallman (rms at frosted-flakes.ai.mit.edu)
4023:
4024: * expmed.c (expand_shift): In extzv strategy, handle the operand
4025: predicates for operands 0, 1 and 3. (Not needed for 2.)
4026: * vax.md: extzv pattern for SImode op1 must recognize general_operand
4027: since the pattern named "extzv" allows them.
4028:
4029: Wed Apr 27 00:52:44 1988 Richard Stallman (rms at frosted-flakes.ai.mit.edu)
4030:
4031: * expr.c (emit_call_1): New arg NEXT_ARG_REG describes # regs
4032: used for passing args.
4033: (emit_library_call, expand_call): Provide that argument.
4034:
4035: * explow.c (round_push): New fn: round arg up to STACK_BOUNDARY.
4036: * expr.c (expand_builtin): Use round_push on size for __builtin_alloca.
4037: * stmt.c (expand_decl): Likewise for variable-size objects.
4038: * expr.c (expand_call): Likewise for args_size.var.
4039: Also use STACK_BOUNDARY to round a constant arg-block size.
4040: Pass emit_call_1 that rounded value.
4041: (emit_library_call): Round arg_size with STACK_BOUNDARY.
4042: * tm-spur.h: Define STACK_BOUNDARY instead of ROUND_CALL_BLOCK_SIZE.
4043: * tm-m68k.h: Define STACK_BOUNDARY as 16.
4044:
4045: * expr.c (emit_call_1): Don't change current_args_size.
4046: (emit_library_call, expand_call): Always restore current_args_size
4047: to ambient value, after calling emit_call_1.
4048:
4049: * tm-hp9k320.h: Don't define USG here.
4050: * config-hp9k3.h: New file. USG defined here.
4051:
4052: * tm-3b1.h: #undef ASM_OUTPUT_ASCII (a defn came from tm-hp9k320.h).
4053:
4054: * decl.c (grokdeclarator primarily): Cast all RID_... to (int) before
4055: using them in arithmetic. Placates CC on Sequent.
4056:
4057: * emit-rtl.c (emit_jump_insn): Return proper value, for a SEQUENCE.
4058: * emit-rtl.c (emit_call_insn): Handle SEQUENCE like emit_jump_insn.
4059:
4060: Tue Apr 26 02:41:26 1988 Richard Stallman (rms at lucky-charms.ai.mit.edu)
4061:
4062: * cccp.c (macroexpand): If traditional, don't disable called macro.
4063: (macarg1): Was failing to count backslash-newline inside a string
4064: in a macro arg as part of file's linenumber.
4065:
4066: Mon Apr 25 18:46:53 1988 Richard Stallman (rms at lucky-charms.ai.mit.edu)
4067:
4068: * jump.c (jump_optimize): Don't do April 20 optimization on first
4069: iteration; let other simpler opts be done before this is considered.
4070:
4071: Sun Apr 24 02:45:28 1988 Richard Stallman (rms at frosted-flakes.ai.mit.edu)
4072:
4073: * tree.c (staticp): a CONSTRUCTOR can be static.
4074:
4075: * varasm.c (output_constant_def): Always return memref, not address.
4076:
4077: * decl.c (complete_array_type): New fn, make an array type complete
4078: based on an initializer.
4079: (finish_decl): Use complete_array_type.
4080: * parse.y (expr_no_commas): When parsing a constructor,
4081: Use complete_array_type on constructors for incomplete array types.
4082:
4083: * typecheck.c (digest_init, store_init_value,process_init_constructor):
4084: It's now TREE_STATIC, not TREE_ADDRESSABLE, that records that all elts
4085: in a CONSTRUCTOR are simple constants.
4086: (digest_init): A CONSTRUCTOR with non-null type is treated as ordinary
4087: expression, not as a braced initializer.
4088: Allow init of an array from an array-valued expr; warn if pedantic.
4089: * expr.c (expand_expr, CONSTRUCTOR case): Put in memory only if static.
4090: Was making an extraneous level of MEM; output_constant_def does it all.
4091:
4092: * typecheck.c (build_unary_op): Allow ADDR_EXPR of static CONSTRUCTOR.
4093: (default_conversion): Likewise.
4094: (initializer_constant_valid_p): Constructor is ok if static.
4095:
4096: * gcc.c: Change -fnostd... to -nostd...
4097: * cccp.c (main): Likewise.
4098:
4099: * Everywhere: Use REG_NOTE_KIND to get the kind of a reg note.
4100:
4101: * rtl.c (find_regno_note): New function.
4102: * flow.c (flow_deadp): Deleted; caller uses find_regno_note.
4103: * global-alloc.c (reg_dead_p): Deleted.
4104: (global_conflicts): Use find_regno_note instead of reg_dead_p.
4105:
4106: * final.c (final) Use find_reg_note to look for a REG_INC.
4107: * combine.c (insn_has_inc_p): deleted; callers use find_reg_note.
4108: (try_combine): Use find_reg_note whenever looking for a REG_INC.
4109: (regno_dead_p, remove_death): Check the REG_NOTE_KIND before assuming
4110: that the datum in it is a REG.
4111: * reload1.c (reload): Use find_reg_note to find a REG_EQUIV.
4112:
4113: * gcc.c: Don't delete .o files if not all compilations succeed.
4114: (record_temp_file): New arg SUCCESS_ONLY--delete file only if succeed.
4115: (delete_temp_files): New arg SUCCESS says compilation succeeded.
4116: (store_arg): Now 3 possibilities for arg TEMPNAMEP; 2 = del on success.
4117: (do_spec_1): For %d, set delete_this_arg to 2.
4118:
4119: * decl.c (poplevel): Warn about any still-incomplete type-tags.
4120:
4121: Sat Apr 23 02:54:16 1988 Richard Stallman (rms at rice-krispies.ai.mit.edu)
4122:
4123: * expr.c (expand_builtin): For alloca, round arg up to multiple
4124: of PARM_BOUNDARY. Also to convert it to Pmode unless it already is.
4125:
4126: * stor-layout.c (layout_union): Bug in 14 April change:
4127: use caller-specified alignment as minimum, not as maximum.
4128:
4129: * parse.y (skip_white_space): Avoid infinite loop on unterm. comment.
4130:
4131: Fri Apr 22 00:22:59 1988 Richard Stallman (rms at frosted-flakes.ai.mit.edu)
4132:
4133: * cccp.c: Text following #else or #endif is just a warning.
4134: (rescan): Digit-case was dropping into the $-case; reorder.
4135:
4136: * cccp.c (rescan): Comment start when -traditional was output as
4137: `/*'; should be nothing.
4138:
4139: * jump.c (jump_optimize): Fix prev change:
4140: do nothing if range1end == range2end;
4141: don't lose any NOTEs when splicing.
4142:
4143: * flow.c (propagate-block): For CALL_INSN, clobber the call-used regs
4144: only after mark_set_regs is done; avoids confusion about lifespan
4145: of function value reg.
4146:
4147: * gcc.c: Pass -Wcomment to cpp.
4148:
4149: * cccp.c (main, rescan): If -Wcomment, warn if `/*' inside comment.
4150:
4151: * decl.c (duplicate_decls): Ignore `inline' decl following definition.
4152:
4153: * m68k.md (casesi): Split it up into subroutines, so insns emitted
4154: by the call to memory_address (on 68000) come in the right place.
4155:
4156: * combine.c (record_dead_and_set_regs): Notice storing in a SUBREG.
4157:
4158: * integrate.c (expand_inline_function): Insn to copy a subroutine's
4159: return-value was being output twice, once incorrectly.
4160:
4161: * reload.c (find_equiv_reg): A stack-push insn does not invalidate
4162: an equiv for a goal in memory.
4163: Any other write to memory does invalidate any goal in memory
4164: (PARALLEL case failed to check for this).
4165:
4166: * expmed.c (expand_shift): In the extzv clause, force shifted value
4167: out of memory if -fforce-mem.
4168:
4169: * print-tree.c (prtypeinfo): Some attributes were missing.
4170: (dump): In ..._TYPE nodes, ignore the TREE_CHAIN field.
4171:
4172: * cse.c (note_mem_written): Pushing on stack does not invalidate mem.
4173:
4174: * vax.md (extv/andl peephole opt): Made incorrect code if output was
4175: pushed on stack. Added special case code.
4176: (extv, extzv for SImode operand): Require register_operand.
4177:
4178: Thu Apr 21 00:24:52 1988 Richard Stallman (rms at corn-chex.ai.mit.edu)
4179:
4180: * stmt.c (assign_parms): Round current_function_pretend_args_size up.
4181:
4182: * integrate.c: `pushlevel' arg was missing.
4183:
4184: * dbxout.c (dbxout_type): Undo rest of March 29 change:
4185: When a named type is first seen inside another type, output an xref
4186: and let the real definition come out later.
4187: It is strange that Sun dbx has sometimes appeared to demand
4188: one strategy and sometimes appeared to demand the other.
4189:
4190: * typecheck.c (convert_for_assignment): Allow conversion to or from
4191: `const void *', etc., unless pedantic.
4192:
4193: * decl.c (get_parm_types): For `foo (void){}', set last_function_parms
4194: to nil so store_parm_decls won't lose.
4195:
4196: * combine.c (subst): (plus (plus X N) -N) => X.
4197:
4198: * explow.c ({anti_,}adjust_stack): Don't make a copy of
4199: `stack_pointer_rtx'.
4200:
4201: * integrate.c (expand_inline_function): Typo testing for the
4202: USE that indicates a CALL_INSN's value is being returned.
4203:
4204: * expr.c (expand_builtin, alloca case): Copy arg to reg before
4205: adjusting stack, to avoid invalid insns on some machines.
4206:
4207: Wed Apr 20 00:15:14 1988 Richard Stallman (rms at rice-krispies.ai.mit.edu)
4208:
4209: * typecheck.c (build_binary_op_nodefault): When shortening,
4210: get_narrower may make no change because ARGn is already narrow.
4211: In this case, set UNSIGNEPn from ARGn's type.
4212:
4213: * typecheck.c: Rename ARG1,ARG2 to ARG0,ARG1, etc. in several fns.
4214:
4215: * tm-vax.h: Turn off continuation on DBX output.
4216:
4217: * typecheck.c (build_function_call): Don't change __builtin_ffs to an
4218: FFS_EXPR. Note that __builtin_alloca has always made a CALL_EXPR.
4219: * expr.c (expand_builtin): New function expands all CALL_EXPRs that
4220: are really built-in functions.
4221: (preexpand_calls): Do nothing to a CALL_EXPR for a built-in function.
4222:
4223: * loop.c (count_loop_regs_set): Don't move a reg that is in a CLOBBER.
4224:
4225: * stupid.c (stupid_mark_refs): Was getting hard reg's mode from
4226: the wrong place.
4227:
4228: * rtl.c (note_stores): Typo in checking vector elt for SET vs CLOBBER.
4229:
4230: * stmt.c (expand_end_bindings): If restoring stack level,
4231: first do pending stack adjust (so it won't be done erroneously after).
4232: (expand_goto): likewise.
4233:
4234: * rtl.h: LABEL_NUSES was an rtx. It should be an int.
4235: * stmt.c (expand_label, expand_goto): Delete frobbing with LABEL_NUSES;
4236: the value stored there was the same as the CODE_LABEL rtx.
4237:
4238: * jump.c (jump_optimize): Detect if (foo) ...; else { ... break;}
4239: and change to if (! foo) { ... break;} else ...; so can drop out.
4240: (next_label): New fn returns the next label after given insn.
4241:
4242: Tue Apr 19 21:30:05 1988 Richard Stallman (rms at frosted-flakes.ai.mit.edu)
4243:
4244: * flow.c (insn_dead_p): Delete special handling for stack ptr.
4245: (mark_set_regs, mark_used_regs): Likewise.
4246: (life_analysis): Mark stack ptr live at end of fn if necessary.
4247: (propagate_block): Mark stack ptr live leading up to a CALL_INSN.
4248:
4249: * jump.c (jump_optimize): #if 0 around stack-adjust-deletion code.
4250:
4251: * cse.c (fold_rtx): Change const_arg from an array to 3 separate
4252: scalars for the first three operands.
4253: Handle SIGN_EXTEND and ZERO_EXTEND.
4254:
4255: * integrate.c (copy_rtx_and_substitute): If arg is 0, return 0.
4256: (expand_inline_function): Separate vars for old pattern and new insn.
4257:
4258: * expr.c (expand_call): Set TREE_ADDRESSABLE if call is not inlined.
4259:
4260: Tue Apr 19 02:25:22 1988 Richard Stallman (rms at frosted-flakes.ai.mit.edu)
4261:
4262: * Version 1.20 released.
4263:
4264: * tm-ns32k.h: Define new reg class GEN_OR_FLOAT_REGS
4265: so that GENERAL_REGS and FLOAT_REGS have a union.
4266:
4267: * tm-ns32k.h (GO_IF_LEGITIMATE_ADDRESS): Recognize a stack-push.
4268: * ns32k.md: Many constraints must now allow or reject pushes.
4269: Delete the special patterns for pushing.
4270:
4271: Mon Apr 18 06:02:39 1988 Richard Stallman (rms at rice-krispies.ai.mit.edu)
4272:
4273: * reload1.c (forget_old_reloads): For a multiword hard reg,
4274: forget old reloads for each word.
4275:
4276: * reload.c (find_reloads): Typo in calling push_replacement.
4277:
4278: * tm-ns32k.h (HARD_REGNO_MODE_OK): Failed to allow fp regs for SFmode.
4279:
4280: Sun Apr 17 01:21:35 1988 Richard Stallman (rms at frosted-flakes.ai.mit.edu)
4281:
4282: * tm-sequent.h (PRINT_OPERAND): Handle absolute integer memaddress.
4283:
4284: * ns32k.md: Add DImode push insns. Add QImode and HImode push insns.
4285: Supply missing statement in movsf.
4286:
4287: * dbxout.c (dbxout_type): Don't contin before 1st field of struct.
4288:
4289: * dbxout.c (dbx_continue): Use DBX_CONTIN_CHAR instead of backslash.
4290:
4291: * loop.c (scan_loop): Ov vax, the "loop-entry jump" can be a return,
4292: in which case perhaps there is no label following it.
4293: Detect phoniness of loop before looking for that label.
4294:
4295: * decl.c (init_decl_processing): Builtin fn names start with `__'.
4296:
4297: * typecheck.c (shorten_compare): Warn about constant result only in
4298: cases like (char)x < 0x80, where old C compilers made it -0x80.
4299:
4300: * vax.md: All jbs/jbc/jlbs/jlbc patters with op0 in SImode
4301: must reject mode-dependent memory addresses.
4302:
4303: * recog.c (mode_independent_operand): Test for general operand
4304: that doesn't have a mode-dependent memory address.
4305:
4306: * varasm.c (assemble_function): ASM_DECLARE_FUNCTION_NAME, if def,
4307: is now responsible for outputting the function name as a label.
4308:
4309: Sat Apr 16 05:02:55 1988 Richard Stallman (rms at frosted-flakes.ai.mit.edu)
4310:
4311: * cccp.c (do_xifdef): Warn about punctuation or other junk in argument.
4312: Warn about no argument. If pedantic, warn if arg starts with digit.
4313: If traditional, ignore all after first non-idchar and never warn.
4314:
4315: Thu Apr 14 01:12:59 1988 Richard Stallman (rms at frosted-flakes.ai.mit.edu)
4316:
4317: * integrate.c (expand_inline_function): Typo for addressable parms.
4318:
4319: * cse.c (insert_regs): Copying half a DImode into half of another
4320: does not make the two DImode regs equivalent.
4321:
4322: * recog.c (general_operand): Was failing to accept symbol_ref:SI
4323: when MODE arg was VOIDmode.
4324:
4325: * expr.c (preexpand_calls): For RTL_EXPR, do nothing.
4326:
4327: * decl.c (start_enum, build_enumerator): Remember default for next one
4328: as a tree node (so the high-half isn't lost in a negative one).
4329:
4330: * stor-layout.c (layout_{record,union}): Pay attn to initial value
4331: of TYPE_ALIGN in computing final alignment.
4332: (layout_union): Round size up to multiple of the alignment.
4333:
4334: * decl.c (finish_struct): Don't alter size after type is laid out.
4335: Instead, set TYPE_ALIGN before layout_type.
4336:
4337: * reload1.c (choose_reload_targets): Introduce reg_has_output_reload.
4338: If there are two separate reloads (one in and one out)
4339: for the same (hard or pseudo) reg, always set reg_last_reload_reg
4340: based on the output reload.
4341:
4342: Wed Apr 13 21:26:16 1988 Richard Stallman (rms at frosted-flakes.ai.mit.edu)
4343:
4344: * reload.c (find_reloads_address_1): Always barf if a "constant"
4345: register is autoincremented.
4346:
4347: * parse.y (structsp): suspend_momentary before start_enum;
4348: else some nodes made by start_enum might be momentary.
4349:
4350: * stmt.c (expand_start_case): New arg is nominal type for comparison
4351: (which is the promoted type of the index expression).
4352: (pushcase): Always convert VALUE to that nominal type
4353: before validating it.
4354: * parse.y (case stmt): Promote each case-value before pushcase.
4355: * typecheck.c (c_expand_start_case): Promote the index-expr
4356: to determine the nominal type, before get_narrower.
4357:
4358: Wed Apr 13 12:43:08 1988 Chris Hanson (cph at kleph)
4359:
4360: * tm-hp9k320.h: Define ASM_FORMAT_PRIVATE_NAME. HPUX asm forbids
4361: `.' in identifiers, so use `___' (there is some danger in this choice).
4362:
4363: Tue Apr 12 23:26:48 1988 Richard Stallman (rms at frosted-flakes.ai.mit.edu)
4364:
4365: * local-alloc.c (block_alloc): Make 1 extra slot in regs_live_at.
4366:
4367: * stmt.c (optimize_bit_field): Function moved from reload1.c.
4368: When need to generate a SIGN_EXTEND or ZERO_EXTEND, make it a separate
4369: insn and use gen_extend_insn to make it.
4370: * optabs.c (gen_extend_insn): New fn, construct body of an insn
4371: to extend Y and store in X.
4372:
4373: Mon Apr 11 19:20:57 1988 Richard Stallman (rms at rice-krispies.ai.mit.edu)
4374:
4375: * decl.c (finish_decl): Error if static var has variable size.
4376:
4377: * parse.y (yylex): Warn if int const is out of range.
4378:
4379: * parse.y: New keyword __alignof.
4380: * typecheck.c (c_alignof): Given a type, return its alignment in bytes.
4381:
4382: * typecheck.c (c_sizeof{,_nowarn)): Don't return integer_one_node;
4383: use build_int to make sure we get something with type `sizetype'.
4384:
4385: * Support variable-sized structures (containing var-sized arrays).
4386:
4387: * stmt.c (assign_parms): Handle parms whose size varies.
4388: Use `memory_address' when constructing memrefs to args;
4389: no need to set `invalid_stack_slot'.
4390: Don't make a REG_EQUIV note for a scalar arg at variable offset.
4391: * stor-layout.c (genop, build_int): No longer `static'.
4392:
4393: * stor-layout.c (convert_units): Optimize ceil (ceil(x,2)*2, 4) etc.
4394:
4395: * stmt.c (expand_decl): Don't abort if var-sized object has init.
4396: Convert variable size from units of DECL_SIZE_UNIT to units of bytes.
4397:
4398: * expr.c (emit_push_insn): Arg ARGS_SO_FAR is now an rtx.
4399: Pay attention to ARGS_ADDR even if machine has push insns.
4400: (expand_call): Handle variable-sized arguments.
4401: If have any such, push entire arg-block in advance.
4402: Record each arg's offset during first loop and don't change args_size
4403: during the actual pushing loop; this way the actual pushing loop
4404: works regardless of arg-order if arg-block was pushed in advance.
4405: (push_block): Copy SIZE to reg unless it's a reg or constant.
4406:
4407: * expmed.c (expand_divmod): If converting CEIL_DIV to FLOOR_DIV,
4408: make new pseudo for incremented value, to help cse understand.
4409:
4410: Sun Apr 10 00:07:45 1988 Richard Stallman (rms at frosted-flakes.ai.mit.edu)
4411:
4412: * expr.c (emit_library_call): Two dumb bugs calling emit_call_1.
4413:
4414: * dbxout.c (dbxout_symbol): Handle case of (MEM (REG frameptr)).
4415:
4416: * cccp.c (skip_if_group): Ignore quote-chars if -traditional.
4417: (rescan): If -traditional, don't output a space for a comment.
4418: (handle_directive): If not -traditional, output a space for a comment.
4419:
4420: Sat Apr 9 21:26:51 1988 Richard Stallman (rms at frosted-flakes.ai.mit.edu)
4421:
4422: * decl.c (get_parm_types): `void' type is error, except as entire list.
4423: * parse.y (parmlist_1): `void,...' is error.
4424:
4425: * typecheck.c (pointer_int_sum, pointer_diff):
4426: Use an integer type with at least POINTER_SIZE bits.
4427: * expr.c (expand_expr, ARRAY_REF): Likewise.
4428: * tree.c (type_precision): Prec of a pointer is POINTER_SIZE.
4429: (convert_to_pointer): Directly convert any int w/ width==POINTER_SIZE.
4430: Other int types convert via an int of that width.
4431: (convert_to_integer): Pointers convert via an int of that width.
4432:
4433: * decl.c (init_decl_processing): Use INT_TYPE_SIZE, if def,
4434: to set width of `int' and `unsigned int'.
4435: (make_index_type): Give new type the width of a long int.
4436:
4437: * tm-m68k.h: Add new -mshort which controls TARGET_SHORT.
4438: * tm-m68k.h: Define INT_TYPE_SIZE depending on TARGET_SHORT.
4439:
4440: Fri Apr 8 05:02:59 1988 Richard Stallman (rms at frosted-flakes.ai.mit.edu)
4441:
4442: * typecheck.c (require_complete_type): Fix typo in detection of `void'.
4443: (build_function_call): Fix backward test to allow `void' values.
4444:
4445: * dbxout.c (dbxout_tags): Output each tag once even if type is defined.
4446:
4447: * m68k.md (movstrictqi): Reject addr-reg always, for both operands.
4448:
4449: * tm-vax.h (STRUCTURE_SIZE_BOUNDARY): Make this always 8, for BSD.
4450: * tm-ultrix.h: New file, overriding STRUCTURE_SIZE_BOUNDARY.
4451: [This change has been taken out; tm-ultrix.h is now equivalent to
4452: tm-vax.h. I must have been confused when testing PCC.]
4453:
4454: * integrate.c (expand_inline_function): Don't let inline_target
4455: be nonzero in BLKmode.
4456:
4457: * decl.c (grokdeclarator): Const array parm becomes ptr-to-const.
4458:
4459: Thu Apr 7 05:02:41 1988 Richard Stallman (rms at frosted-flakes.ai.mit.edu)
4460:
4461: * genoutput.c (bcopy, bzero): Renamed to mybcopy, mybzero
4462: so variation in C library and config.h won't affect the results.
4463: * genrecog.c (bzero): likewise.
4464: * genextract.c (bcopy): Fn deleted; used only in a string constant.
4465:
4466: * varasm.c (force_const_mem): Fix typo in arg decl.
4467:
4468: * toplev.c (compile_file): init_file with main_input_filename
4469: so dbx output doesn't lack N_SOL symbols.
4470:
4471: * cccp.c (rescan) [CPLUSPLUS]: Put out // comments as // comments.
4472:
4473: Wed Apr 6 14:06:38 1988 Richard Stallman (rms at frosted-flakes.ai.mit.edu)
4474:
4475: * expr.c: Delete SLOW_ZERO_EXTEND conditionals added March 3.
4476: Now that enums types can be unsigned, this isn't needed.
4477:
4478: * emit-rtl.c (emit_jump_insn): Handle SEQUENCEs.
4479:
4480: * genemit.c (gen_expand): Use emit_jump_insn, emit_label, emit_barrier
4481: when the insn rtl requires it.
4482:
4483: * m68k.md (subsi3): Prefer to avoid reverse-subtraction alternative.
4484:
4485: * stmt.c (expand_end_case): Let CASE_DROPS_THROUGH control what to
4486: emit after the table.
4487: * tm-vax.h: Define CASE_DROPS_THROUGH.
4488:
4489: Tue Apr 5 15:47:10 1988 Richard Stallman (rms at frosted-flakes.ai.mit.edu)
4490:
4491: * genemit.c (gen_exp): Handle vectors within exprs.
4492:
4493: * stmt.c (expand_end_case): Pass 5th arg (default_label) to gen_casesi.
4494: * m68k.md: Define casesi insn rather than tablejump insn.
4495:
4496: * cccp.c (skip_if_group): For validate_else, pass BP (end of cmd name).
4497: Don't call validate_else if do_else or do_endif will detect error.
4498:
4499: * Bug: inline fcns can refer to the return reg with a strict_low_part
4500: which confuses expand_inline_function. Fix is to change return reg
4501: into inline_target *everywhere* except in or right after a call.
4502: * integrate.c (copy_rtx_and_substitute): Delete special case for SET.
4503: Replace return-value hard regs with INLINE_TARGET in all contexts.
4504: (expand_inline_function): special handling for insn after a CALL_INSN
4505: if it copies the function value out.
4506: Allow notes and stack adjust insns to intervene
4507: between the CALL_INSN and the value-copy.
4508:
4509: * expr.c (emit_call_1): New name for gen_call_1.
4510:
4511: * Bug: ({...}) insns were in wrong place for a subexpression
4512: after a sequence point, as in x ? y : ({...}).
4513: * tree.def: New tree-code RTL_EXPR holds a sequence.
4514: * expr.c (expand_expr): Handle RTL_EXPR by emitting the sequence.
4515: * stmt.c (expand_{start,end}_stmt_expr): Use emit_to_sequence
4516: to make a sequence from everything within the ({...}).
4517: (expand_{start,end,emit}_delayed_expr): Delete these functions.
4518: * parse.y (`for'-statements): Don't call them; nothing special needed.
4519:
4520: * parse.y (yylex): Handle syntax L"..." and L'...'
4521: (combine_strings): Handle wide strings being combined.
4522: * typecheck.c (digest_init): Reject wide string as init for char array.
4523: Allow it for an int array, but don't allow a narrow string.
4524: * decl.c (init_decl_processing): New var int_array_type_node.
4525:
4526: * parse.y: Define keyword `noalias'.
4527: * parse.h: Define RID_NOALIAS.
4528:
4529: * typecheck.c (compparms): Not all parmlists match an empty one;
4530: call `compparms1' to filter them.
4531:
4532: * decl.c (groktypename): Remove special case for `void' as parameter.
4533: (get_parm_types): Special case for list of one decl with type void.
4534:
4535: * decl.c (build_enumerator): Give enum constants the type `int'.
4536: Variable `current_enum_type' eliminated.
4537: (finish_enum): No need to repeat `fixup_unsigned_type'
4538: since the precision has not changed.
4539: * stor-layout.c (layout_type): Allow enum types to be unsigned.
4540:
4541: * emit-rtl.c (unshare_all_rtl): Unshare contents of all reg-notes.
4542:
4543: * parse.y (check_newline): filename is optional in #-lines.
4544:
4545: Mon Apr 4 14:36:54 1988 Richard Stallman (rms at frosted-flakes.ai.mit.edu)
4546:
4547: * typecheck.c (shorten_compare): When data type determines the value,
4548: eval the nonconstant arg anyway if it has side effects.
4549: (build_conditional_expr): When merging `foo *' with `void *',
4550: also allow `const void *'. Result type has merged set of qualifiers.
4551: (qualify_type): Merge qualifiers of two types.
4552:
4553: * decl.c (get_parm_types): Store any tags defined in parmlist
4554: into `last_function_parm_types'.
4555: (store_parm_decls): Add those tags into the current binding level.
4556:
4557: * parse.y (parmlist, parmlist_or_identifier): Pass 0 to pushlevel;
4558: no binding levels in C should be transparent to tags.
4559:
4560: * 3b1 support:
4561: * tm-3b1.h: New file.
4562:
4563: * m68k.md: Add HPUX_ASM conditionals for shift-by-24-and-compare.
4564: In one of the dbra patterns, a HPUX_ASM conditional was backwards.
4565: (movhi) [SGS_3B1]: Define the LI... label as in MIT syntax.
4566: (addsi3) [SGS]: Syntax for base-displacement differs from MOTOROLA.
4567: (subsi3) [SGS]: likewise.
4568: (tablejump) [ASM_OUTPUT_CASE_LABEL]: Use 6, not 2, as displacement.
4569: This assumes ASM_OUTPUT_CASE_LABEL on 68k is used for a `swbeg'.
4570:
4571: * final.c (final): Use ASM_OUTPUT_CASE_LABEL (if defined) to output
4572: any CODE_LABEL followed by an ADDR_VEC or ADDR_DIFF_VEC.
4573: It has 4 args; 4th is the insn which is the ADDR_VEC or ADDR_DIFF_VEC.
4574:
4575: * tm-*.h for 68000 (PRINT_OPERAND_ADDRESS): For unscaled indexing in
4576: fetch from a branch table, use L and LI symbols as in the scaled case.
4577:
4578: * cccp.c: If SCCS_DIRECTIVE, define #sccs as no-op.
4579:
4580: * integrate.c (output_inline_function): Real start of function
4581: is FIRST_PARM_INSN, not FIRST_FUNCTION_INSN.
4582:
4583: * tree.c (build_string): String contents must be saveable (for
4584: inline fcn).
4585:
4586: * cse.c (cse_insn): Don't forget to set dest_hash_code when dest
4587: is a stack slot (and so its address is not being optimized).
4588:
4589: * emit-rtl.c (restore_reg_data_1): reg_rtx_no must be 1+ largest REGNO.
4590:
4591: * m68k.md (non-SImode bit-field insns): Change constraint to "o,d"
4592: so a nonoffsetable memref is handled by reloading its address
4593: but a register can still be handled.
4594:
4595: * toplev.c (main): Execute OVERRIDE_OPTIONS, if it's defined.
4596:
4597: Sat Apr 2 00:55:21 1988 Richard Stallman (rms at wheaties.ai.mit.edu)
4598:
4599: * expr.c (convert_move): Handle a SUBREG in direct truncation case.
4600:
4601: * cse.c (lookup_for_remove): Don't test machine mode of registers:
4602: Storing in (REG:SI 0) invalidates (REG:DF 0).
4603:
4604: * decl.c (pushlevel): New arg, nonzero means this level is for
4605: variables only, not for tags. All calls changed.
4606: (lookup_tag): Even if THIS_LEVEL_ONLY, skip variables-only levels.
4607: (pushtag): Define it in the first non-variables-only level.
4608:
4609: * dbxout.c (dbxout_type): Undo Mar 29 change, in the DBX_NO_XREFS case.
4610: So now each struct or union will contain only nameless cross-refs
4611: to any others it uses. The prior change is still in effect when
4612: DBX_NO_XREFS is not defined.
4613:
4614: * Implement variable array bounds for parameters.
4615: * decl.c (poplevel): Don't crash if DECL_NAME gives 0.
4616: * typecheck.c (comptypes): A variable array bound matches anything.
4617: * parse.y (parmlist): Call pushlevel, then pushdecl each parm as it
4618: is parsed; then poplevel after using get_parm_types to extract the
4619: results of the parmlist.
4620: * decl.c (get_parm_types): New function; reverse the current decls,
4621: put them in last_function_parms, and return a list of their types.
4622: (grokparms): Arg is now an idlist or a typelist. Do nothing if latter.
4623: (push_parm_decl): New function, like {start,finish}_decl combined
4624: for a parm in a parmlist.
4625:
4626: * dbxout.c (dbxout_symbol): Ignore sym if its DECL_RTL is 0.
4627:
4628: * symout.c (symout_block_symbols): Ignore sym if type is error_mark.
4629:
4630: Fri Apr 1 11:41:21 1988 Richard Stallman (rms at wheaties.ai.mit.edu)
4631:
4632: * expr.c (prepare_call_address): New function; given two rtx's
4633: for function and context, copy the context to the right hard reg,
4634: put the function address in the right place and return an rtx for it.
4635: (gen_call_1): No longer do those things. Delete args CONTEXT, PROTECT.
4636: (emit_library_call, expand_call): Call `prepare_call_address'.
4637: In between that and `gen_call_1', USE the parm registers.
4638:
4639: * tm-hp9k320.h (ASM_OUTPUT_*): Flush uses of output_arith_constant.
4640:
4641: * varasm.c (assemble_variable): Use ASM_FORMAT_PRIVATE_NAME
4642: to make the name for a local static variable.
4643: * tm-m68k.h, tm-vax.h, tm-ns32k.h, tm-spur.h:
4644: Define ASM_FORMAT_PRIVATE_NAME. Use `.', not `$', to separate.
4645:
4646: * tm-m68k.h, tm-ns32k.h (FIX_FRAME_POINTER_ADDRESS):
4647: To refer to stack ptr, use stack_pointer_rtx, not a copy.
4648:
4649: * tree.c (build_real_from_string): Function deleted.
4650: * parse.y (yylex): Use build_real and atof.
4651:
4652: * parse.y: Allow string concatenation in arg of asm.
4653:
4654: * parse.y (yylex): Always allow `$' in ident, but warn if pedantic.
4655: * tm-vms.h: Delete DOLLARS_IN_IDENTIFIERS (no longer tested).
4656:
4657: * cccp.c (rescan, do_define, initialize_random_junk):
4658: Always allow `$', but warn if pedantic.
4659: (main): If -t, set `traditional'.
4660: (collect_expansion): If `traditional', no special handling for quotes
4661: and no whitespace added at end of macro definition.
4662:
4663: * expr.c (compare, compare1): Last arg to compare_constants
4664: must be a size in bits.
4665:
4666: Thu Mar 31 00:31:52 1988 Richard Stallman (rms at wheaties.ai.mit.edu)
4667:
4668: * expmed.c (expand_mult, expand_divmod, extract_fixed_bit_field):
4669: Reject function return register as target if may need to read it.
4670: (Reading the return register in an inline function doesn't work.)
4671:
4672: * decl.c (start_function): Delete extra arg to `error'.
4673:
4674: * emit-rtl.c (last_parm_insn): Delete this unused var.
4675:
4676: * make-cc1.com: New version from Kashtan.
4677:
4678: * integrate.c (expand_inline_function): Always set up an INLINE_TARGET
4679: for a function that returns a nonvoid nonBLK value.
4680: Since `pushlevel' and `poplevel' are called, must also call
4681: `expand_{start,end}_bindings' to make a pair of NOTEs.
4682: Let them handle USEs at end of scope of formal parameter copies.
4683:
4684: * integrate.c (expand_inline_function): In a new-style CALL_INSN,
4685: don't change the result reg into INLINE_TARGET. Also,
4686: generate a move insn after the call only if INLINE_TARGET is non-0.
4687:
4688: * integrate.c (copy_decl_tree): Don't crash if DECL_RTL is 0.
4689:
4690: * integrate.c (copy_for_inline): Don't treat `return' rtx's specially.
4691:
4692: * stmt.c (expand_{start,end,emit}_delayed_expr):
4693: New fns to handle ({...})'s in expressions output not where parsed
4694: (such as third expression in a `for' statement).
4695: * parse.y: Call them to handle third expression in a `for'.
4696:
4697: * decl.c (duplicate_decls): Result is `inline' if either OLD or NEW is.
4698:
4699: * emit-rtl.c (emit_note): Return the note, or 0 if none.
4700: * stmt.c (expand_start_bindings): Use emit_note's value.
4701:
4702: Wed Mar 30 12:48:22 1988 Richard Stallman (rms at wheaties.ai.mit.edu)
4703:
4704: * obstack.c (_obstack_begin): If ALIGNMENT is 0, use default.
4705: Compute default for the alignment of a `double'.
4706: * obstack.h (obstack_{begin,init}): Pass 0 for the alignment.
4707:
4708: * flow.c (mark_used_regs): Discard multiple SUBREGs, STRICT_LOW_PARTs.
4709:
4710: ** Call insns that return values are now represented as
4711: (set (reg ...) (call ...)), not just (call ...).
4712:
4713: * *.md: Define a "call_value" insn pattern.
4714:
4715: * tm-m68k.h, tm-vax.h, tm-ns32k.h: (NOTICE_UPDATE_CC):
4716: These insns invalidate the CC.
4717:
4718: * local-alloc.c (combine_regs): #if 0 special treatment of
4719: function value hard reg.
4720: (wipe_dead_reg): If hard reg, call reg_is_born so that the death
4721: will not be ignored.
4722: (reg_is_set): For reg that dies in this insn, mark it dead from now on
4723: and post_mark it live after this insn only.
4724:
4725: * combine.c (try_combine): Don't allow a call insn as I1 or I2.
4726:
4727: * loop.c (count_loop_regs_set): Move CALL_INSN into a separate
4728: clause. When finding regs that are function addresses, handle
4729: both old and new format call insns.
4730:
4731: * flow.c (insn_dead_p): A SET that contains a CALL can't be dead.
4732: (volatile_refs_p): Any CALL constitutes a volatile ref.
4733: (mark_used_regs): If setting a reg from a volatile ref,
4734: treat it like setting a reg whose value will be used.
4735:
4736: * expr.c (gen_call_1): New arg VALREG if nonzero means generate
4737: a call_value insn which stores in VALREG.
4738: (expand_call): Use `hard_function_value' to make the VALREG arg
4739: unless expression has type `void'.
4740:
4741: * expr.c (emit_library_call): New 2nd arg OUTMODE is mode of result.
4742: (So can give gen_call_1 the proper value-register.)
4743: All callers (here and optabs.c) pass this arg.
4744:
4745: * cse.c (canon_hash): Consider all CALL rtx's volatile.
4746:
4747: ** end of change in representation of call insns.
4748:
4749: * stmt.c (expand_asm_operands): Replace complex lvalues with
4750: SAVE_EXPRs here
4751: * typecheck.c (c_expand_asm_operands): rather than here.
4752:
4753: * typecheck.c (pointer_diff): Fix typo preventing use of FLOOR_DIV_EXPR
4754: when dividing by power of 2.
4755: (build_c_cast): Flush unused locals.
4756: (store_init_value): likewise.
4757: (process_init_constructor): Delete unused 4th arg `for_static'.
4758:
4759: * toplev.c (fatal_io_error): Arg to fprintf was missing.
4760:
4761: * tm-m68k.h (LEGITIMIZE_ADDRESS): Flush extra arg to `emit_move_insn'.
4762:
4763: * decl.c: Delete some unused local vars.
4764:
4765: * stor-layout.c (layout_decl): `packed_size' now unsigned.
4766:
4767: Tue Mar 29 14:47:07 1988 Richard Stallman (rms at wheaties.ai.mit.edu)
4768:
4769: * Version 1.19 released.
4770:
4771: * loop.c (may_trap_p): Nonzero if X is a division that might trap.
4772: (scan_loop): If insn might trap, move only if loop always executes it.
4773:
4774: * dbxout.c (dbxout_type): Never output a cross-ref for
4775: a type whose definition is known. Sun dbx won't accept them.
4776:
4777: Mon Mar 28 12:34:46 1988 Richard Stallman (rms at wheaties.ai.mit.edu)
4778:
4779: * tm-vms.h (TARGET_DEFAULT): Default is PCC alignment.
4780: The VMS compile driver controls the real default.
4781:
4782: * typecheck.c (c_expand_return): Don't ignore return value
4783: when its type is void.
4784:
4785: * final.c (final): Forget the condition codes after an `asm'.
4786:
4787: * typecheck.c (build_binary_op_nodefault): Warn about ptr < 0
4788: even if not pedantic, but not if traditional.
4789:
4790: * typecheck.c (convert_for_assignment): Don't warn about
4791: pointers volatile * vs nonvolatile * if -fvolatile specified.
4792:
4793: * decl.c (store_parm_decls): Among the old-style parm decls
4794: there can legitiately be other decls! For example, if a parm
4795: is declared `enum {foo, bar} x;', there are decls for `foo' and `bar'.
4796: Don't let anything but a PARM_DECL match a parm name;
4797: pass all the other decls through into the lexical context.
4798:
4799: * jump.c (jump_optimize): When deleting stack adjusts before a
4800: jump-to-return, don't be fooled by intervening NOTEs.
4801:
4802: * tm-sequent.h (PRINT_OPERAND): Output (MEM (MEM (REG))) properly.
4803: * output-ns32k.c (print_operand_address): Output (MEM (REG))
4804: properly; output stack-pointer as `tos'.
4805:
4806: * flow.c (find_use_as_address): Reject uses within operand 0
4807: of a ZERO_EXTRACT or SIGN_EXTRACT reference. It's hard to reload
4808: an autoincrement inside these because they can refer to multiple bytes.
4809:
4810: * reload.c (find_reloads): `o' in constraint means any memref
4811: (except auto-increment) is acceptable with reloading.
4812: Braino: Clear BADOP, not BAD.
4813:
4814: * reload.c (push_reloads): Use rtx_equal_p (via macro MATCHES)
4815: when considering reuse of an old reload. Otherwise equal values
4816: may get reloaded into different registers, and two MEMs that
4817: originally matched may fail to match once reloaded.
4818:
4819: * m68k.md (sign_extract and zero_extract insns):
4820: If operand 0 is QI or HImode, don't allow register--only `o'
4821: (except in some bftst patterns where bitpos is < 8).
4822: And change `m' to `o' in all these patterns.
4823:
4824: Sun Mar 27 15:32:54 1988 Richard Stallman (rms at wheaties.ai.mit.edu)
4825:
4826: * expr.c (expand_expr, case CONSTRUCTOR):
4827: Not all aggregates are BLKmode; use the type's mode.
4828:
4829: * gcc.c: Pass -y* to ld.
4830:
4831: * cse.c (struct hash): New member `equivalence_only'.
4832: (insert): Initialize it.
4833: (cse_insn): Set it to 1 when src_eqv is inserted.
4834: When finding cheapest equivalent of something,
4835: skip elts that are marked with `equivalence_only'.
4836:
4837: * decl.c (duplicate_decls): Don't call `layout_type'
4838: if the type is `error_mark_node'.
4839:
4840: * decl.c (implicitly_declare): If decl will be file-scope,
4841: make sure it's a permanent node, and its associated data too.
4842:
4843: Sat Mar 26 15:48:50 1988 Richard Stallman (rms at wheaties.ai.mit.edu)
4844:
4845: * flow.c (insn_dead_p, mark_used_regs): Storing a reg via a
4846: ZERO_EXTRACT or SIGN_EXTRACT is dead if the reg isn't needed afterward.
4847:
4848: * stmt.c (expand_start_function): Set current_function_name
4849: to the name of this function.
4850: * tm-vms.h (MAYBE_VMS_FUNCTION_PROLOGUE): Use current_function_name.
4851:
4852: * expr.c (expand_increment): A SUBREG in op0 can also a be a copy.
4853:
4854: * ns32k.md: Correct range of args for `adjspb' insn.
4855: Use `adjspw' when appropriate.
4856: New pattern for `lprd' insn.
4857: Change some `const_int' predicates to GET_CODE tests.
4858:
4859: * expr.c (expand_call): Eval function before copying args to hard regs.
4860:
4861: * tree.c (make_node, copy_node): Don't get length of a REAL_CST
4862: from tree_code_length.
4863:
4864: * expmed.c (extract_fixed_bit_field): In memory-word case, abort
4865: if tm.h parms say word could fail to be well-aligned.
4866: * tm-ns32k.h: Define STRUCTURE_SIZE_BOUNDARY so they will be aligned.
4867: * tm-vax.h: Define STRUCTURE_SIZE_BOUNDARY since Unix CC seems to.
4868:
4869: * tm-vms.h (CPP_PREDEFINES): Predefine __GNU__ and __GNUC__.
4870:
4871: Fri Mar 25 13:23:27 1988 Richard Stallman (rms at wheaties.ai.mit.edu)
4872:
4873: * gcc.c (main): Handle SIGHUP, SIGTERM.
4874:
4875: * expmed.c (expand_bit_and): Don't clobber OP1 when trying andcb.
4876:
4877: Thu Mar 24 21:59:09 1988 Richard Stallman (rms at wheaties.ai.mit.edu)
4878:
4879: * stmt.c (assign_parms): Get size of BLKmode local from the type,
4880: not the mode.
4881: (expand_function_start): Init frame_offset before calling assign_parms.
4882:
4883: Wed Mar 23 23:50:37 1988 Richard Stallman (rms at wheaties.ai.mit.edu)
4884:
4885: * expr.c (emit_push_insn): When making a move insn,
4886: go via emit_move_insn; else fails to put constants into memory.
4887:
4888: Tue Mar 22 15:45:10 1988 Richard Stallman (rms at wheaties.ai.mit.edu)
4889:
4890: * expr.c (expand_increment): Flush special case for register_operand;
4891: actually call the predicate whatever it is.
4892:
4893: * genemit.c (gen_expand): Make `operands' a local variable,
4894: not a global static one, in the `gen_...' function.
4895: Avoids lossage when one `gen_...' fcn calls another indirectly.
4896:
4897: * genoutput.c (output_epilogue): Don't give printf a null string.
4898:
4899: Mon Mar 21 15:41:42 1988 Richard Stallman (rms at wheaties.ai.mit.edu)
4900:
4901: * expmed.c (store_bit_field) [HAVE_insv]:
4902: Force VALUE1, not VALUE, into a register.
4903:
4904: * expmed.c (store_fixed_bit_field): Width of mask for clearing
4905: the bit-field depends on mode of OP0.
4906:
4907: * ns32k.md (branch and store-flag insns):
4908: Test cc_prev_status, not cc_status.
4909:
4910: * expmed.c (extract_bit_field): Delete unused var `omode'.
4911:
4912: * dbxout.c (dbxout_type, dbxout_tag): Use the main variant
4913: of the specified type.
4914:
4915: * reload.c (find_reloads): When an alternative succeeds without reload,
4916: initialize goal_alternative_matches from this_alternative_matches.
4917:
4918: Sun Mar 20 17:58:00 1988 Richard Stallman (rms at wheaties.ai.mit.edu)
4919:
4920: * tm-sun*.h: Don't predefine `m68k'; Sun's compiler does not.
4921:
4922: Fri Mar 18 13:48:29 1988 Richard Stallman (rms at wheaties.ai.mit.edu)
4923:
4924: * reload.c (find_reloads): Set up goal_alternative_matches
4925: *after* the label `finish'.
4926:
4927: * stmt.c (assign_parms): GET_MODE_SIZE needs a mode, not an rtx.
4928:
4929: * recog.c (constrain_operands): Set global var `which_alternative'
4930: to indicate which of the alternatives this insn matches.
4931:
4932: * typecheck.c (commontype): long int vs unsigned int
4933: gives long unsigned, if long and int are the same width.
4934:
4935: Thu Mar 17 15:39:45 1988 Richard Stallman (rms at wheaties.ai.mit.edu)
4936:
4937: * emit-rtl.c, tree.c: include local version of varargs.h.
4938:
4939: * decl.c (start_function): Clear TREE_EXTERNAL and set TREE_STATIC
4940: here rather than in finish_function. Affects the case of
4941: `extern foo (); static foo (a) {...}'
4942:
4943: * gcc.c: Handle -fnostdinc and -fnostdlib switches in specs.
4944:
4945: * cccp.c (main): Handle -fnostdinc: don't put default dirs
4946: on the chain to be searched.
4947:
4948: * cccp.c (error, warning, error_with_line): No longer print
4949: charpos within file; lineno is enough.
4950:
4951: Wed Mar 16 16:56:36 1988 Richard Stallman (rms at wheaties.ai.mit.edu)
4952:
4953: * expmed.c (expand_inc, expand_dec): Handy new subroutines
4954: to generate x+=y or x-=y, given x and y as rtl.
4955: * expmed.c (expand_divmod): Use them instead of gen_{add2,sub2}_insn.
4956:
4957: * expr.c (emit_move_insn): Return the move insn emitted.
4958: Eliminate the code here to move a DImode or DFmode by pieces.
4959:
4960: * emit-rtl.c (emit_insn): Return-value was wrong if emit_to_sequence;
4961: cannot use `last_insn' in that case.
4962:
4963: * regclass.c, stupid.c, local-alloc.c, global-alloc.c:
4964: Some vars of type HARD_REG_SET should be `register' only
4965: if HARD_REG_SET is a macro (ie a scalar).
4966:
4967: * expr.c (move_block_from_reg): New function, converse of
4968: move_block_from_reg.
4969: * stmt.c (assign_parms): If a BLKmode arrives in regs,
4970: copy to a stack slot using move_block_from_reg.
4971:
4972: Tue Mar 15 17:33:22 1988 Richard Stallman (rms at wheaties.ai.mit.edu)
4973:
4974: * regclass.c (regclass): Don't convert to two-operand insns
4975: unless optimizing.
4976:
4977: * varasm.c (decode_rtx_const, const_hash_rtx): Fix typos.
4978:
4979: * stmt.c (fixup_var_1): Don't alter insn moving VAR to or from
4980: a subreg of a register.
4981:
4982: * cse.c (fold_rtx): Don't fold if result is not LEGITIMATE_CONSTANT_P.
4983: Construct all results in new local variable NEW; then test that
4984: and decide whether to return it or the original rtx.
4985:
4986: * cse.c (cse_insn): When SRC_EQV is non-0 but set[0] has been
4987: cleared, don't insert SRC_EQV in hash table.
4988:
4989: * All insns emitted by a define_expand become part of the SEQUENCE:
4990: * SEQUENCE now contains a vector of insns, not of bodies.
4991: * insn-emit.c (add_insn): If `emit_to_sequence' nonzero, add the
4992: insn to a separate chain, `sequence_first_insn'.
4993: (gen_sequence): Take everything on that chain and make a SEQUENCE.
4994: (emit_insn): Handle SEQUENCE differently since elts are now insns.
4995: (emit_insn_{before,after}): Handle SEQUENCE.
4996: (classify_insn): #if 0.
4997: * genemit.c (gen_expand): emit all the insns, then call gen_sequence
4998: to make the return value.
4999: Define two macros DONE and FAIL for use in a DEFINE_EXPAND:
5000: Use DONE to inhibit emission of the pattern of the DEFINE_EXPAND.
5001: Use FAIL to make the gen_... function return 0.
5002:
5003: Mon Mar 14 12:47:28 1988 Richard Stallman (rms at wheaties.ai.mit.edu)
5004:
5005: * expr.c (expand_expr): Extend the don't-sign-extend-enums hack
5006: to COMPONENT_REF. (See 3 March.)
5007:
5008: * tm-*.h (FUNCTION_ARG, etc.) New argument NAMED
5009: is nonzero for a named arg, zero for an anonymous extra arg.
5010: * expr.c (expand_call): Pass 1 for NAMED if appropriate.
5011: * expr.c (emit_library_call): Pass 1 for NAMED.
5012: * stmt.c (assign_parms): Pass 1 for NAMED.
5013:
5014: * cccp.c: Test __GNUC__, not __GNU__.
5015:
5016: * integrate.c (copy_and_substitute_rtx):
5017: Replacing a MEM parm with the parm value, convert mode if mismatch.
5018: Always use VOIDmode when generating SETs.
5019: Take heed of FIRST_PARM_OFFSET and distinguish arg-pointer
5020: from frame-pointer when they are different.
5021: (expand_inline_function): Handle (RETURN) insns, by creating a
5022: return_label which is output after the integrated code.
5023:
5024: * parse.y (yylex): Condition for ignoring `inline' was backwards.
5025:
5026: * flow.c (mark_used_regs): Ignore STRICT_LOW_PART, so that
5027: an insn that sets STRICT_LOW_PART (and its source values) may be dead.
5028: (propagate_block): Always pass 1 for strict_low_ok to insn_dead_p.
5029:
5030: * optabs.c (emit_unop_insn): Don't make a REG_RETVAL note.
5031: Change above deletes dead STRICT_LOW_PART stores without one.
5032:
5033: * optabs.c (expand_binop, expand_unop): If the library address
5034: is to be put in a pseudoreg, do it here, and make the REG_RETVAL
5035: note point after that.
5036:
5037: * expr.c (emit_library_call): Never defer stack-pops.
5038: Deletion of the library call by flow.c loses if they are deferred.
5039:
5040: * cse.c (cse_insn): Handling of 68k's zero-extend was broken:
5041: it made the actual source and the REG_EQUAL source equivalent.
5042: * If dest is a STRICT_LOW_PART, ignore the actual source and use
5043: the REG_EQUAL source in its place. src_eqv's mode may be different
5044: from src's, so use proper mode in lookups or inserts for src_eqv.
5045: * Don't forget to set src_eqv_elt if src_eqv already has an elt.
5046: * On use_related_value for src_eqv, use src_eqv_elt.
5047:
5048: * toplev.c (main_input_filename): Name of file mentioned in first
5049: #-line in the input.
5050: (compile_file): Pass it to dbxout_init as 2nd arg.
5051: * dbxout.c (dbxout_init): Use 2nd arg to make the N_SO symbol.
5052: * parse.y (check_newline): Store main_input_filename.
5053:
5054: * expr.c (move_block_to_reg): New function, copies a MEM:BLK
5055: to consecutive registers.
5056: (use_regs): New function to emit a USE for each reg in a series.
5057: (expand_call): Use the two new functions when a precomputed BLKmode
5058: arg is passed entirely in regs.
5059: (emit_push_insn): Use move_block_to_reg when PARTIAL > 0.
5060: Also, don't subtract USED from SIZE twice.
5061: Use plus_constant to add ARGS_SO_FAR so can use indexing on stack ptr.
5062:
5063: * varasm.c (assemble_integer_zero): Use rtx 0, not tree 0,
5064: to go with prev change in ASM_OUTPUT_INT.
5065:
5066: Sun Mar 13 01:16:17 1988 Richard Stallman (rms at wheaties.ai.mit.edu)
5067:
5068: * varasm.c (const_hash, compare_constant_1, record_constant_1):
5069: Handle NOP_EXPR and CONVERT_EXPR in constant expressions.
5070:
5071: * optabs.c (expand_binop, expand_unop): When widening operands,
5072: those with VOIDmode (like CONST_INT) may be left alone.
5073:
5074: Sat Mar 12 01:09:24 1988 Richard Stallman (rms at wheaties.ai.mit.edu)
5075:
5076: * varasm.c (assemble_variable): When making a .comm or .lcomm,
5077: round size up to multiple of BIGGEST_ALIGNMENT.
5078:
5079: * obstack.c (_obstack_newchunk): Eliminate fencepost causing copying
5080: to access the word past the end of the existing object.
5081:
5082: * tm-vax.h, tm-ns32k.h: Define {INIT_,}CUMULATIVE_ARGS
5083: and upgrade FUNCTION_ARGS for new calling convention.
5084:
5085: * gcc.c: If -O, define __OPTIMIZE__.
5086: (do_spec_1): %c now scans SIGNED_CHAR_SPEC: define __CHAR_UNSIGNED__
5087: when appropriate whether or not it is the default.
5088:
5089: Fri Mar 11 16:49:25 1988 Richard Stallman (rms at wheaties.ai.mit.edu)
5090:
5091: * parse.y: Define YYDEBUG.
5092:
5093: * rtl.c (rtx_unstable_p): New function, same as old rtx_varies_p.
5094: * explow.c (stabilize): Use rtx_unstable_p.
5095: * rtl.c (rtx_varies_p): Ignore `unchanging' (undoing previous change
5096: in this function) because `unchanging' doesn't enable cse to compare
5097: the value with any particular constant value.
5098: * rtl.c (insn_store_addr_varies_p): Delete, since not used.
5099:
5100: * hard-reg-set.h (COPY_HARD_REG_SET, etc.) non-scalar case:
5101: Rename and rearrange temp variables to avoid name conflicts with args.
5102:
5103: * regclass.c (reg_class_record): Don't smash class to GENERAL_REGS
5104: and don't exit prematurely, when `r' or `g' is seen. Must merge
5105: GENERAL_REGS with previously determined desired class.
5106:
5107: * expr.c (expand_call) [no PUSH_ROUNDING]: When pushing the arg
5108: block, try to reuse some of the pending_stack_adjust.
5109:
5110: * cse.c: qty_const can now hold values (PLUS frame_pointer integer).
5111: Effect is that storing into a structure doesn't invalidate
5112: mem refs to scalar stack variables via addresses in registers.
5113: (insert): Load such values into qty_const, like true constants.
5114: (fold_rtx): Ignore qty_const if it isn't really a constant.
5115:
5116: * expr.c (expand_expr) VAR_DECL: Copy DECL_RTL before calling
5117: change_address, so it isn't permanently clobbered.
5118:
5119: * stmt.c (fixup_var_refs_1): Make sure the stack slot address
5120: is valid by calling fixup_stack_1 each time it is substituted.
5121:
5122: * stmt.c (fixup_stack_1): Return the altered rtx.
5123: If it's a MEM in the stack, return a copy of it.
5124:
5125: * stmt.c (fixup_stack_slots): #if 0.
5126: * stmt.c (expand_finish_function): Don't call fixup_stack_slots
5127: because fixup_stack_1 is called elsewhere when necessary.
5128:
5129: * reload.c (find_reloads_address): New arg is location of the MEM
5130: whose address is being reloaded. So we copy the MEM if it
5131: is one that can be shared. New arg 0 means no need to copy the MEM.
5132: All callers pass the new arg.
5133:
5134: * stmt.c (assign_parms): Determine parm stack-size from
5135: the DECL_ARG_TYPE, not from the TREE_TYPE.
5136: Else loses when parm is declared `float' but passed as `double'.
5137:
5138: * emit-rtl.c (make_safe_from): Constants are already safe.
5139: Use proper machine mode for temp reg when needed.
5140:
5141: Thu Mar 10 14:35:14 1988 Richard Stallman (rms at wheaties.ai.mit.edu)
5142:
5143: * expr.c (emit_push_insn): Don't pass wrong type to plus_constant
5144: (case where there is no PUSH_ROUNDING).
5145:
5146: * expr.c (expand_call): Round partial[i] down to multiple of
5147: PARM_BOUNDARY before subtracting it from arg size on stack.
5148: Compute these sizes just once and keep them in vector `arg_size'.
5149: * expr.c (emit_push_insn): Handle `partial' uniformly, in accord
5150: with this new convention for how it affects the stack size.
5151: * stmt.c (assign_parms): Round NREGS down to PARM_BOUNDARY likewise.
5152:
5153: * obstack.h (obstack_free macro) [Not __GNUC__ but __STDC__]:
5154: Don't cast result of (obstack_free) to (int); just ignore it.
5155:
5156: * reload.c (find_reloads): Initialize operand_reloadnum.
5157:
5158: * optabs.c (emit_unop_insn): New argument CODE, used to make
5159: a REG_EQUAL note from operand OP0 if more than one insn results.
5160: Also a REG_RETVAL note.
5161: * expr.c (convert_move): Pass CODE arg to emit_unop_insn.
5162: * flow.c (propagate_block): Use insn_dead_p to decide whether
5163: to handle a REG_RETVAL note by skipping some insns.
5164: Always pass 1 for STRICT_LOW_OK for an insn that has a REG_RETVAL note.
5165: Handle case where REG_RETVAL points at an insn that's deleted.
5166: * flow.c (insn_dead_p): New operand STRICT_LOW_OK says an insn
5167: that sets STRICT_LOW_PART may be considered dead.
5168:
5169: * expr.c (expand_expr): Once again canonicalize X-C to X+(-C).
5170: Change on March 1 made it stop doing this.
5171:
5172: Wed Mar 9 01:25:35 1988 Richard Stallman (rms at wheaties.ai.mit.edu)
5173:
5174: * loop.c (move_movables): Don't always mark the moved reg
5175: as equivalent to a constant value: not if it is being cleared
5176: to zero-extend something or if it is used outside the loop.
5177:
5178: * expr.c (move_by_pieces_1): Finish last change.
5179:
5180: * stmt.c (assign_parms): Update stack_args_size properly.
5181: Figure FIRST_PARM_OFFSET when making the stack mem refs.
5182:
5183: * cse.c (insert): Build the related_value lists in the opposite order
5184: so that the oldest element in the chain is the one that follows
5185: the most basic element.
5186:
5187: * expr.c (expand_expr): COMPONENT_REF case: criterion for
5188: converting the the result is if MODE1 (its mode of arrival) isn't
5189: a mode we want.
5190:
5191: * toplev.c (rest_of_compilation): Fix typo setting TREE_ASM_WRITTEN.
5192:
5193: Tue Mar 8 13:18:37 1988 Richard Stallman (rms at wheaties.ai.mit.edu)
5194:
5195: * cse'ing of library calls.
5196:
5197: * expr.h: type `optab' is now a ptr to a struct.
5198: The old contents are now the `handlers' element.
5199: The `code' element gives the RTL code for the kind of expression
5200: this optab makes (PLUS for add_optab, etc.)
5201: Every var formerly declared `struct optab *' is now just `optab'.
5202:
5203: * optabs.c (init_optab, init_optabs): New function to init an optab
5204: and set its `code'. Used in init_optabs.
5205:
5206: * optabs.c (expand_binop, expand_unop): Use the `code' field
5207: to add a REG_EQUAL note to the insn that copies a libcall's
5208: value into a pseudo. Also a REG_RETVAL note pointing at the
5209: first insn for setting up args for the call.
5210:
5211: * cse.c (cse_insn): Process REG_EQUIV and REG_EQUAL datum almost like
5212: another set-src; put the actual src into the equivalence class of that.
5213:
5214: * flow.c (propagate_block): If a dead insn has a REG_RETVAL reg-note,
5215: either ignore or delete all the insns back to the insn the REG_ARG
5216: note points to.
5217:
5218: * local-alloc.c (block_alloc): Don't refrain from allocating a
5219: "constant" register if the constant value isn't ok for an immediate op.
5220:
5221:
5222: * dbxout.c (CONTIN): If DBX_CONTIN_LENGTH is <= 0, do nothing.
5223:
5224: * cccp.c: Extra default include dirs for C++.
5225: * cccp.c (main): For -M, strip dirs from object file name.
5226:
5227: * rtl.c (find_reg_note): New function.
5228:
5229: * expmed.c (store_fixed_bit_field): Don't AND with VALUE
5230: if VALUE's original mode had no more bits than we want.
5231:
5232: * expr.c (emit_library_call): Use varargs.
5233:
5234: * integrate.c (copy_and_substitute_rtx): Recognize arg_pointer_rtx
5235: and translate it just like frame_pointer_rtx.
5236:
5237: Mon Mar 7 00:48:33 1988 Richard Stallman (rms at wheaties.ai.mit.edu)
5238:
5239: * expmed.c (extract_fixed_bit_field):
5240: Shift counts were wrong for narrow MODE in signed case.
5241: Do the sign-extending shifts in the narrowest mode possible.
5242: Reduce big-endian case to little-endian case.
5243: Delete SLOW_ZERO_EXTEND conditional.
5244:
5245: * Implement constants in memory for RISC machines
5246: with limited abilities for immediate args and constant addresses.
5247:
5248: * genoutput.c (output_epilogue): Empty predicate-name
5249: is output as 0 in insn_operand_predicate.
5250:
5251: * expr.c (expand_expr): Change 4th arg to an `enum expand_modifier'
5252: Value EXPAND_SUM corresponds to old nonzero 4th arg.
5253: Value EXPAND_CONST_ADDRESS means ok to return an invalid MEM
5254: whose address is a constant. Changes for this case in ADDR_EXPR,
5255: COMPONENT_REF and ..._DECL.
5256:
5257: * varasm.c (output_arith_constant): Function deleted.
5258: * tm-*.h: (ASM_OUTPUT_{INT,SHORT,CHAR}): 2nd arg is now an RTX
5259: and output it using `output_addr_const'.
5260: * varasm.c (output_constant): Change uses of those macros.
5261:
5262: * varasm.c (init_const_rtx_hash_table): Initialize constant pool
5263: for a new function. Called from `expand_function_start'.
5264: * varasm.c (force_const_mem): Turn a constant rtx into a MEM rtx
5265: which refers to the constant pool. Other new subroutines too.
5266: (force_const_double_mem): Use force_const_mem to make the MEM.
5267: (immed_real_const): No longer record the REAL_CST node in the rtx.
5268:
5269: * explow.c (force_reg): If arg is a constant and not legitimate,
5270: put it in the constant pool with force_const_mem.
5271: Mark the register as equivalent to the constant value.
5272: * expr.c (emit_move_insn): Likewise.
5273: * explow.c (break_out_mem_refs): Use force_reg to put into a reg.
5274: * explow.c (memory_address): Likewise.
5275: * expr.c (expand_expr): ADDR_EXPR case: likewise.
5276:
5277: * expr.c (expand_call): Do force_reg on each register-operand
5278: so it will go through a pseudo and can be cse'd.
5279:
5280: * recog.c (immediate_operand, nonmemory_operand, general_operand):
5281: For constant operands, use LEGITIMATE_CONSTANT_P to decide value.
5282: * tm-*.h: Define LEGITIMATE_CONSTANT_P.
5283:
5284: * reload1.c (reload): Invalid constants can't go in reg_equiv_constant.
5285:
5286: Sun Mar 6 22:49:06 1988 Richard Stallman (rms at wheaties.ai.mit.edu)
5287:
5288: * reload.c (push_reloads): If IN occurs within OUT,
5289: don't reuse an existing input-only reload. Otherwise would lose on
5290: (set (mem (plus R C)) (plus R C1)) if R is available in a spill reg.
5291:
5292: * reload1.c (choose_reload_targets): Don't choose an inherited
5293: reload register that's in use for another reload.
5294: Without this, above change doesn't have an effect.
5295:
5296: * Implement the `unchanging' flag in MEM and REG rtx's.
5297: Also simplify code with a new subroutine `change_address'.
5298:
5299: * emit-rtl.c (change_address): Return new memory ref like an old
5300: one but with specified mode and address.
5301: * expmed.c (extract{,_split,_fixed}_bit_field): Use change_address.
5302: (store{,_split,_fixed}_bit_field): Likewise.
5303: * expr.c (store_expr, expand_expr): Likewise.
5304:
5305: * expr.c (move_by_pieces): Args now memrefs, not addresses.
5306: Eliminate the FROM_VOL and TO_VOL args since the memrefs indicate.
5307: Change the structure `struct move_by_pieces' similarly.
5308: (move_by_pieces_1): Same changes; use change_address.
5309: (emit_block_move, emit_push_insn): Calls to move_by_pieces changed.
5310:
5311: * integrate.c (copy_rtx_and_substitute): Use change_address;
5312: handle ->unchanging field.
5313:
5314: * rtl.c (rtx_varies_p): Regs or memrefs with ->unchanging don't vary.
5315: (copy_rtx): Perserve ->unchanging.
5316: (print_rtx): Print ->unchanging as /u.
5317:
5318: * stmt.c (expand_decl): Set ->unchanging on `const' decls.
5319: (fixup_memory_subreg): Use change_address.
5320: (assign_parms): Record in the rtl which parms are volatile or const.
5321:
5322: * varasm.c (assemble_variable): Set ->unchanging on `const' decls.
5323: (output_constant_def): Always set ->unchanging for constant refs.
5324:
5325: * cse.c (canon_hash): Don't treat a MEM as "in memory"
5326: if its ->unchanging bit is set.
5327:
5328: * loop.c (invariant_p): A REG or MEM with ->unchanging is invariant
5329: (for a MEM, the address must be invariant).
5330:
5331: Sat Mar 5 13:22:11 1988 Richard Stallman (rms at wheaties.ai.mit.edu)
5332:
5333: * genconfig.c (walk_insn_part): DO consider MATCH_DUPs
5334: when calculating MAX_RECOG_OPERANDS.
5335: (gen_expand): define_expand is now different from define_insn.
5336: Compute max # SETs or CLOBBERs for any one sub-insn in a define_expand,
5337: instead of summing them all. And don't count the MATCH_DUPs at all.
5338:
5339: * genemit.c (max_operand_1): Record largest opno in a MATCH_DUP
5340: separately from largest in a MATCH_OPERAND.
5341: (gen_expand): An operand # with only MATCH_DUPs gets
5342: a local variable in the gen_ function we output.
5343:
5344: * integrate.c (save_for_inline): Delete vestige of NOTE_INSN_IS_DECL.
5345:
5346: * cse.c (invalidate): Handle subregs.
5347: (cse_ins, invalidate_from_clobbers): Do call `invalidate' for subregs.
5348: (insert_regs): When assigning one subreg from a like one,
5349: make the two regs equivalent.
5350: (cse_insn): Do call insert_regs when dest is a subreg.
5351:
5352: * expr.c (expand_call): Precompute all args going via hard regs
5353: since even arithmetic could require a library call.
5354:
5355: Fri Mar 4 15:48:17 1988 Richard Stallman (rms at wheaties.ai.mit.edu)
5356:
5357: * stor-layout.c (layout_parms): Function deleted.
5358: * stmt.c (expand_function_start): Don't call it.
5359:
5360: * stmt.c (assign_parms):
5361: stack_args_size counts size of args so far passed on stack.
5362: Use PARM_BOUNDARY when counting it; derive stack offsets from it.
5363: Set current_function_args_size from it.
5364:
5365: When an arg is split between regs and stack, make stack space
5366: for the rest of it, and count it.
5367: In a varargs function, push the last arg onto the stack.
5368: When an arg is passed in regs alone, don't remember a stack slot
5369: for it, and if it needs one, use assign_stack_local.
5370:
5371: Set DECL_OFFSET to the stack offset, or -1 if parm came in regs.
5372:
5373: * expr.c (expand_call): Anonymous args of a varargs function
5374: are always passed on the stack.
5375:
5376: * varasm.c (force_const_double_mem): Copy the MEM rtx
5377: if it may need to be smashed by reloading.
5378:
5379: * genemit.c (gen_expand): define_expand must have nonempty pattern
5380: even though, due to `return' statements in the code-to-run,
5381: that pattern may not be used to generate code.
5382:
5383: Thu Mar 3 17:08:43 1988 Richard Stallman (rms at wheaties.ai.mit.edu)
5384:
5385: * expr.c (expand_expr): If supposed to sign-extend an enum
5386: which is never negative, zero-extend instead (unless SLOW_ZERO_EXTEND).
5387: (store_expr): Likewise.
5388:
5389: * reload.c (find_reloads): 'm' for CONST_DOUBLE: clear BADOP, not BAD.
5390: After force_const_double_mem, do find_reloads_toplev on the MEM.
5391: (find_reloads_address): Handle constant addresses (on machines
5392: that don't allow them).
5393:
5394: * final.c (set_current_gdbfile): New fn, get the gdbfile structure
5395: for specified filename.
5396: (output_source_line): Use set_current_gdbfile for the file.
5397: * varasm.c (assemble_variable): Call set_current_gdbfile
5398: for the declaration's source file, so GDB won't ignore the file.
5399:
5400: * varasm.c (force_const_double_mem): Build a new REAL_CST node
5401: and get its data type from the machine mode of the CONST_DOUBLE.
5402: (immed_real_const): Don't save the REAL_CST tree node.
5403: * typecheck.c (get_floating_type): Return float type for given mode.
5404:
5405: * integrate.c (expand_inline_function): Ignore the (USE (REG...))
5406: (for the return-register) at the end of the inline function.
5407: After a CALL_INSN, imagine the (SET (REG ...) (REG ...)) for
5408: the return-register if the return-register isn't explicitly used.
5409:
5410: Wed Mar 2 22:08:49 1988 Richard Stallman (rms at wheaties.ai.mit.edu)
5411:
5412: * typecheck.c (build_array_ref): Do default_conversion on INDEX.
5413:
5414: Tue Mar 1 15:49:34 1988 Richard Stallman (rms at wheaties.ai.mit.edu)
5415:
5416: * expr.c (expand_call): Always get a SYMBOL_REF for a fixed function.
5417: If may be alloca, set may_call_alloca.
5418: (gen_call_1): Never put a SYMBOL_REF through `memory_address';
5419: but if function cse is wanted, just copy it to a register.
5420: If NO_FUNCTION_CSE is defined, never do function cse.
5421:
5422: * expr.c (init_expr): New function, does init_queue and inits
5423: other things.
5424:
5425: * stmt.c (expand_function_start): Call init_expr, not init_queue.
5426:
5427: * optabs.c (expand_binop): Don't clobber OP0 and OP1
5428: if may call delete_insns_since later.
5429:
5430: * expr.c (emit_library_call): PUSH_ARGS_REVERSE test was backwards.
5431:
5432: * cse.c (cse_insn): Do canon_reg on the size and position operands
5433: in a ZERO_EXTEND or SIGN_EXTEND that is a destination.
5434:
5435: * tm-*.h: Define SLOW_BYTE_ACCESS.
5436: * expmed.c ({store,extract}_fixed_bit_field):
5437: If SLOW_BYTE_ACCESS, get/set all bit fields from full words.
5438:
5439: * combine.c (subst): Simplify
5440: (zero_extend:SI (subreg:QI (zero_extract ...))).
5441: * combine.c (simplify_and_const_int): Simplify
5442: (and (zero_extract ...) (const_int ...)).
5443:
5444: * local-alloc.c (qty_compare{,_1}): Test of qty_phys_sugg was reversed.
5445: (combine_regs): If one pseudo gets two suggested hard regs
5446: (one at birth and one at death), prefer the one from birth
5447: unless we see at death that it's no good.
5448:
5449: * expr.c (expand_expr): Ignore sum_ok unless mode is Pmode.
5450: Don't use force_operand unless sum_ok is set.
5451:
5452: Mon Feb 29 19:23:50 1988 Richard Stallman (rms at wheaties.ai.mit.edu)
5453:
5454: * expr.c (emit_move_insn): When a CONST_DOUBLE needs moving
5455: by pieces, force it into memory, unless it is dconst0_rtx,
5456: in which case each piece is const0_rtx.
5457: (emit_push_insn): Likewise. Also, write code for pushing a
5458: non-BLK mode which has no "mov" insn defined, but only
5459: in the case where there is no PUSH_ROUNDING.
5460:
5461: * expr.c (do_tablejump): Put constant term in address last.
5462:
5463: * toplev.c (xrealloc): On error, call fatal instead of abort.
5464:
5465: * optabs.c (emit_cmp_insn): If genning from tst_optab,
5466: make the operand fit its predicate.
5467:
5468: * optabs.c (expand_float): Don't adjust stack between cmp and jump.
5469:
5470: * optabs.c (expand_binop): Recursive calls can return 0; handle
5471: that event by deleting any preparatory insns. Also don't smash
5472: TARGET when this happens.
5473:
5474: * reload.c (push_reload): If IN != *INLOC, set reload_nocombine.
5475: (combine_reloads): Don't combine an input reload with reload_nocombine.
5476:
5477: * jump.c (jump_optimize): Don't delete stack adjusts unless
5478: EXIT_IGNORE_STACK is nonzero.
5479: * expr.c (clear_pending_stack_adjust): Likewise.
5480: * tm-*.h: When EXIT_IGNORE_STACK is defined, give it `1' as defn.
5481:
5482: * expr.c (expand_call): Initialize args_size.
5483: Don't push a block if args_size is 0.
5484: (emit_library_call): Don't include register-args (or reg-parts
5485: of partial ones) in args_size.
5486: Don't push a block if args_size is 0.
5487:
5488: * expr.c (expand_expr): For DECLs in memory, check the address
5489: validity with memory_address_p, and preserve volatility info.
5490:
5491: * stmt.c (expand_function_end): fixup_gotos needs 2 args.
5492:
5493: * jump.c (mark_jump_label): If INSN is 0, don't set its JUMP_LABEL.
5494: Inside an ADDR_VEC or ADDR_DIFF_VEC, recurse with 0 for INSN.
5495:
5496: * varasm.c (force_const_double_mem): Must zero TREE_CST_RTL
5497: before output, or nothing will happen.
5498:
5499: Sun Feb 28 01:08:53 1988 Richard Stallman (rms at wheaties.ai.mit.edu)
5500:
5501: * optabs.c (emit_unop_insn): Generate and emit an insn
5502: given the insn-code and the two operands (one out, one in).
5503: Can move the operands into registers when needed for various
5504: reasons.
5505: * expr.c (convert_move): Use emit_unop_insn for outputting the
5506: conversion insns.
5507:
5508: * expr.c (emit_library_call): Use arg's nominal mode to choose
5509: a reg to pass it in, not actual mode (which can be VOIDmode).
5510:
5511: * insn-emit.c (emit_insn): If arg is empty SEQUENCE, do nothing.
5512:
5513: * genemit.c (gen_expand): Scan the rtl-pattern for predicates
5514: and machine modes of the operands.
5515:
5516: * m68k.d (dbra patterns): Add HPUX_ASM conditionals.
5517:
5518: * rtl.c (reg_mentioned_p): Use "equal", not "eq", when
5519: REG isn't a register.
5520: * reload.c (combine_reloads): Verify not reg_mentioned_p even if
5521: the input reload's value isn't a register.
5522:
5523: * reload.c (operands_match_p): If successful and 2nd arg
5524: has a pre-increment that matches a non-increment, return 2.
5525:
5526: * reload1.c (reload): At end, clobber a pseudoreg to a MEM
5527: even if it's an out-of-range address. It doesn't affect the
5528: assembler code in this case, but it makes the dbx output correct.
5529:
5530: * recog.c (constrain_operands): When operands_match_p returns 2,
5531: in the constraint alternative that is ultimately successful,
5532: copy the output operand from the input that it matched
5533: so that the assembler insn that is output shows the pre-increment.
5534:
5535: Sat Feb 27 15:16:47 1988 Richard Stallman (rms at wheaties.ai.mit.edu)
5536:
5537: * combine.c (subst): When optimizing
5538: (set (zero_extract ...) (and (zero_extract ...) const))
5539: must arrange to have 1's, not 0's, shifted into low bits of const.
5540:
5541: * decl.c (grokdeclarator): When return-type defaults to int,
5542: don't warn, just set warn_about_return_type.
5543: (start_function): See that variable and warn, after starting function.
5544:
5545: * toplev.c (count_error): No longer print newline if not quiet.
5546: (report_error_function): If not quiet, print a newline if
5547: printing anything, and don't print the function name.
5548:
5549: * reload1.c (choose_reload_targets):
5550: Fix the loop that checks for consecutive available spill regs.
5551: Set `have_groups' nonzero if any reload wants a group.
5552: In that case, for non-group reloads, prefer a reg that can't be in
5553: group, or else one that has only one available neighbor.
5554:
5555: * reload1.c (reload): Find separately the max need for each class
5556: for single registers, groups of registers, and single registers
5557: not in any group. (The last one counts non-group reloads
5558: in insns that have at least one group reload.)
5559: Then make sure enough of each kind are found.
5560:
5561: * expmed.c: Now needs flags.h and recog.h (therefore insn-config.h).
5562:
5563: * expmed.c (store_bit_field):
5564: Delete redundant protect_from_queue.
5565: Force VALUE out of memory if -fforce-mem.
5566: If insv's predicate for VALUE wants a register, put it there.
5567:
5568: * expmed.c (extract_bit_field):
5569: Force TARGET out of memory if -fforce-mem.
5570: If insv's predicate for TARGET wants a register, put it there.
5571:
5572: Fri Feb 26 00:12:48 1988 Richard Stallman (rms at wheaties.ai.mit.edu)
5573:
5574: * reload1.c (eliminate_frame_pointer): Don't check for pushes
5575: unless PUSH_ROUNDING is defined.
5576:
5577: * reload.c: Don't define REG_OK_FOR_{INDEX,BASE}_P
5578: (since the tm file is supposed to do it).
5579:
5580: * expr.c (emit_push_insn, expand_call):
5581: Don't use PUSH_ROUNDING if it's not defined.
5582:
5583: * expr.c (preexpand_calls): Do nothing for constants and decls.
5584:
5585: * expr.c (expand_call, emit_library_call): When PUSH_ROUNDING
5586: is not defined, use ROUND_CALL_BLOCK_SIZE to round the size
5587: of the block of arguments.
5588:
5589: * expr.c (expand_call): Don't count register-args in ARGS_SIZE.
5590:
5591: * rtl.h, emit-rtl.c: Create static_chain_incoming_rtx
5592: and struct_value_incoming_rtx.
5593: * stmt.c (expand_function_start): Use ..._incoming_rtx where needed.
5594:
5595: * expr.c (expand_call): Use new macros INIT_CUMULATIVE_ARGS,
5596: CUMULATIVE_ARGS and FUNCTION_ARG_ADVANCE to update data
5597: on args scanned so far.
5598: (emit_library_call): Likewise.
5599: * stmt.c (assign_parms): Likewise.
5600: * tm-spur.h, tm-m68k.h: Define these macros.
5601:
5602: * rtl.h (NUM_MACHINE_MODES): NUM_MACHINE_MODE renamed.
5603: * rtl.c, genrecog.c: Change places it is used.
5604:
5605: * cccp.c (output_line_command): line_cmd_buf should be chars, not ints.
5606:
5607: Thu Feb 25 13:33:29 1988 Richard Stallman (rms at wheaties.ai.mit.edu)
5608:
5609: * genemit.c (gen_expand): Don't lose if pattern is empty-vector.
5610:
5611: * genconfig.c (gen_insn): Don't lose if pattern is empty-vector.
5612:
5613: * expr.c (expand_expr): For COMPONENT_REF, don't convert to tmode
5614: unless the mode we get is unacceptable.
5615:
5616: * loop.c (scan_loop, move_movables): New field `partial' is 1 for
5617: zero-extending clr insn; don't make the reg invariant when it's moved.
5618:
5619: * optabs.c (expand_unop, expand_binop, emit_cmp_insn):
5620: mode-argument to predicates was missing.
5621:
5622: * optabs.c (expand_binop): If gen-function returns 0, this means
5623: the insn wasn't available.
5624:
5625: * reload.c (find_reloads): Don't make optional reloads for operands
5626: that match other operands.
5627:
5628: * reload.c (combine_reloads): Reject optional output reload.
5629:
5630: * reload.c (find_equiv_reg): Know that CALL_INSNs clobber memory.
5631:
5632: * typecheck.c (build_binary_op_nodefault):
5633: If doing a short shift, leave the shift-count as a fullword.
5634:
5635: Tue Feb 23 14:43:46 1988 Richard Stallman (rms at wheaties.ai.mit.edu)
5636:
5637: * combine.c (subst): Count, in n_occurrences, # times FROM is seen.
5638: (try_combine): Refuse to combine x=*y++ into z = x*x.
5639:
5640: * loop.c (invariant_p): Frame pointer and arg pointer are invariant.
5641: (move_movables): Don't forget to set ->done!
5642: When moving the matching movables, don't forget to set n_times_set.
5643:
5644: * expmed.c (expand_shift): Reorder strategies for logical shift;
5645: if widening, try all ashift strategies before extzv.
5646:
5647: * typecheck.c (build_binary_op_nodefault):
5648: Always return error_mark if either operand is one.
5649:
5650: * recog.c (nonmemory_operand): New predicate.
5651:
5652: * optabs.c (expand_unop, expand_binop, emit_cmp_insn):
5653: Don't treat `register_operand' as special. Apply the predicate
5654: to the rtx; if the predicate fails, use a register instead.
5655:
5656: Mon Feb 22 22:37:32 1988 Richard Stallman (rms at wheaties.ai.mit.edu)
5657:
5658: * expr.c (expand_calls): Preexpand all calls in arguments
5659: that are passed in regs before copying any of them into the regs.
5660:
5661: * expr.c (emit_push_insn): Three more args.
5662: EXTRA for extra space to leave.
5663: ARGS_ADDR and ARGS_SO_FAR for using move-insns on machines
5664: that lack true push insns.
5665:
5666: * expr.c (emit_library_call, expand_call):
5667: Use the new arguments of `emit_push_insn'.
5668:
5669: * expr.c (PUSH_ARGS_REVERSED): defined if handle args last-to-firs.
5670:
5671: Sun Feb 21 12:17:59 1988 Richard Stallman (rms at wheaties.ai.mit.edu)
5672:
5673: * toplev.c (rest_of_compilation): Set TREE_ASM_WRITTEN
5674: when a function is really output as assembler code.
5675: Don't do inlining of a function that is already made inline;
5676: instead, output it as assembler code, because this must be
5677: the second call for that function.
5678:
5679: * decl.c (finish_compilation): Delete it.
5680: * toplev.c (compile_file): Output pending inline functions at the end
5681: in the same way tentative-defined variables are output.
5682:
5683: * emit-rtl.c (restore_reg_data): New fn: given chain of insns,
5684: restore emit-rtl's data on registers from the regs they use.
5685:
5686: * integrate.c (output_inline_function): Use restore_reg_data.
5687: (fill_regno_reg_rtx_as_needed): Now restore_reg_data_1 in emit-rtl.c.
5688:
5689: * tree.c (build_decl): Function moved from decl.c.
5690: No longer set attributes of function decls specially.
5691:
5692: * decl.c (implicitly_declare, builtin_function, grokdeclarator):
5693: Don't expect build_decl to set attributes of FUNCTION_DECL.
5694:
5695: * tree.c (preserve_data): New fn, make all data now on
5696: maybepermanent_obstack last permanently.
5697:
5698: * cse.c (cse_insn): Remove a STRICT_LOW_PART from the dest rtx
5699: before putting it in the hash table.
5700:
5701: * symout.c (symout_block): Fix the args to `symout_block_symbols'.
5702:
5703: Sat Feb 20 00:07:52 1988 Richard Stallman (rms at wheaties.ai.mit.edu)
5704:
5705: Start of changes for inline functions.
5706: Changes received from Tiemann, then slightly rearranged for simplicity.
5707:
5708: * integrate.c: New file (Tiemann's rtl2.c).
5709: * integrate.c (function_cannot_integrate_p):
5710: New fn, only checks whether current fn is safe and good to inline.
5711: Returns an error message string if not.
5712:
5713: * expr.c (current_args_size): Var made static.
5714: (store_expr): Fn no longer static.
5715: (stack_pointer_rtx): Use this var for all refs to the stack pointer.
5716: (struct_value_rtx, static_chain_rtx): Likewise
5717:
5718: * expr.c (expand_call): Detect calls to integrable functions
5719: and integrate them.
5720: **If fn is not named "alloca" then assume it is not `alloca'. **
5721:
5722: * emit-rtl.c (max_label_num): New fn, returns number for next label.
5723: (get_first_label_num): New fn, returns first label of current fn.
5724: (init_emit): Save first label number of this fn.
5725:
5726: * emit-rtl.c (gen_inline_header_rtx): New fn, make an INLINE_HEADER.
5727:
5728: * emit-rtl.c (emit_declaration): New fn to emit new kind of NOTE.
5729:
5730: * emit-rtl.c (init_emit_once): New fn.
5731: Move inits of unique rtl objects here, from init_emit.
5732:
5733: * decl.c (finish_compilation): New fn to compile separately
5734: any nonglobal inline functions that need to be addressable.
5735:
5736: * decl.c (grokdeclarator): Handle `inline' kwd among the declspecs.
5737: Set TREE_INLINE if it's safe.
5738:
5739: * decl.c (finish_function): If fn was inlined, don't clear
5740: the DECL_ARGUMENTS or DECL_RESULT or DECL_INITIAL.
5741:
5742: * gen*.c: Provide rtl_obstack, not current_obstack.
5743:
5744: * rtl.c (rtl_obstack): Variable: ptr to obstack to use for making rtl.
5745: * rtl.c (rtx_alloc, rtvec_alloc): Use that obstack.
5746: * rtl.c (copy_rtx): Copy the `integrated' flag.
5747: * rtl.c (print_rtx): Print that flag as `/i'.
5748:
5749: * rtl.def: New rtx code INLINE_HEADER.
5750:
5751: * rtl.h (struct rtx_def): Add `integrated' field.
5752: * rtl.h: Define macros for fields in an inline_header rtx.
5753:
5754: * stmt.c (max_parm_reg_num, get_first_function_insn):
5755: New fns, return info on parm regs and the insns that init them.
5756:
5757: * stmt.c (expand_decl): Simplify with new local `type'.
5758:
5759: * stmt.c (stack_pointer_rtx): Replace all refs to stack pointer
5760: with this shared rtx.
5761: * stmt.c (struct_value_rtx): Likewise.
5762:
5763: * stmt.c (expand_start_function): Call init_pending_stack_adjust
5764: instead of clear_pending_stack_adjust.
5765: If not using a return-label, set `return_label' to 0.
5766:
5767: * stmt.c (expand_null_return, expand_end_function):
5768: Call clear_pending_stack_adjust unconditionally.
5769:
5770: * expr.c (clear_pending_stack_adjust): Move the conditionals here.
5771: For now, this fn is a no-op, since it's not safe in an inline fn
5772: and the stack adjusts are deleted by jump.c in if optimizing.
5773:
5774: * expr.c (init_pending_stack_adjust): New fn.
5775:
5776: Fri Feb 19 14:30:13 1988 Richard Stallman (rms at wheaties.ai.mit.edu)
5777:
5778: * toplev.c (main): Decode -finline-functions, -fkeep-inline-functions.
5779:
5780: * toplev.c (rest_of_compilation):
5781: At start, save the rtl if function should be inline.
5782: For inline function, if we don't yet know whether it should be
5783: compiled on its own, don't do so.
5784:
5785: * toplev.c (compile_file): Clear, and later print, `integration_time'.
5786: Call `init_emit_rtl' when starting.
5787: Call `finish_compilation' at the end.
5788:
5789: [Add an extra arg to the error and warning functions?]
5790:
5791: * tree.c ({push,pop,clear}_momentary):
5792: Change momentary_stack from a char ** to a struct momentary_level *.
5793:
5794: * tree.c (build_pointer_type): Put temporary type in `saveable_obstack'
5795: * tree.c (build_type_variant): Likewise.
5796: * tree.c (make_node): Likewise. Also put decls and LET_STMTs there.
5797: * tree.c (type_hash_canon): Free a temporary type in `saveable_obstack'
5798:
5799: * tree.c (perm_tree_cons): Like `tree_cons' but on perm. obstack.
5800:
5801: * tree.c (init_tree, {{end_,}temporary,permanent}_allocation):
5802: Handle `maybepermanent_obstack' and `saveable_obstack' and
5803: `rtl_obstack'.
5804:
5805: * tree.h (TREE_INLINE): New attribute macro.
5806: * tree.h (DECL_SAVED_INSNS, DECL_FRAME_SIZE):
5807: New components in a FUNCTION_DECL.
5808: Delete the `unused` slot in a `struct tree_decl'.
5809:
5810: * typecheck.c (mark_addressable): Set TREE_ADDRESSABLE
5811: even in FUNCTION_DECLs.
5812:
5813: * typecheck.c (build_function_call):
5814: If function is a FUNCTION_DECL, avoid setting TREE_ADDRESSABLE
5815: when taking its address.
5816:
5817: * parse.h: Define RID_INLINE.
5818: * parse.y: Define keyword `inline'; set up ridpointers for it.
5819: (yylex): Don't recognize `inline' of -fno-asm or -ftraditional.
5820:
5821: * flags.h: New vars flag_inline_functions
5822: and flag_keep_inline_functions.
5823:
5824: End of changes for inline functions.
5825:
5826: * tree.c (convert): If EXPR's type is an error_mark, return error_mark.
5827:
5828: * Makefile (install): Don't strip the executables.
5829:
5830: * jump.c (delete_insn): Deleting a label's target
5831: can delete either NEXT and PREV! So must search for a
5832: following nondeleted insn to return.
5833:
5834: * typecheck.c (build_function_call): Typo in validating
5835: data type of function.
5836:
5837: * genoutput.c (gen_expand): Must create a `struct data' even
5838: for a define_expand, so we can output the proper insn_gen_function
5839: and leave zeros in the other tables.
5840:
5841: * loop.c (scan_loop): Replace the code for handling zero-extends
5842: with unconditional code that checks for a pair of insns.
5843:
5844: * m68k.md: Do zero-extend using define_expand to generate
5845: a pair of insns, to set all to zero and then copy the low part.
5846:
5847: Thu Feb 18 15:54:00 1988 Richard Stallman (rms at wheaties.ai.mit.edu)
5848:
5849: * emit-rtl.c (emit_insn): If arg is a SEQUENCE, emit several insns.
5850: * emit-rtl.c (classify_insn): Given an RTX, return the rtx-code for
5851: an insn containing it: CODE_LABEL, INSN, JUMP_INSN or CALL_INSN.
5852:
5853: * rtl.def: New RTX types DEFINE_EXPAND and SEQUENCE.
5854: * gen*.c: Handle DEFINE_EXPAND. Only genemit.c does real work.
5855:
5856: * make.com, make-cc1.com, make-cccp.com: New, VMS command files.
5857:
5858: * tm-vms.h: New file, used as tm.h to generate VMS code.
5859:
5860: * tm-vax.h (FUNCTION_PROLOGUE): Turn off no bits in the mask;
5861: let call_used_registers alone control this.
5862: Call MAYBE_VMS_FUNCTION_PROLOGUE, and define that as no-op.
5863:
5864: * tm-vax.h (TARGET_VAXC_ALIGNMENT): New target-flag bit.
5865: BIGGEST_ALIGNMENT, EMPTY_FIELD_BOUNDARY and POINTER_BOUNDARY use it.
5866:
5867: * varasm.c (assemble_function): Use ASM_DECLARE_FUNCTION_NAME
5868: if it is defined.
5869:
5870: * varasm.c (assemble_variable): On an external,
5871: use ASM_OUTPUT_EXTERNAL if defined. Default is do nothing, as before.
5872:
5873: * toplev.c:
5874: Use FATAL_EXIT_CODE and SUCCESS_EXIT_CODE.
5875: Don't include time.h and resource.h on VMS.
5876: (main) Define __VERSION__ if not already defined.
5877: Conditionalize setrlimit on RLIMIT_STACK.
5878: Test __GNUC__, not __GNU__.
5879: Don't do `ps v' on VMS.
5880: (gettime): Conditional code for VMS.
5881:
5882: * gcc.c: Define __GNUC__ as well as __GNU__.
5883: __GNU__ will be deleted in a future version.
5884:
5885: * symout.c (symout_finish) [VMS]: Don't refer to `getwd' on VMS.
5886: * symout.c (symout_init) [VMS]: Fatal error; GDB syms not supported.
5887:
5888: * parse.y (yylex): Handle DOLLARS_IN_IDENTIFIERS.
5889:
5890: * genoutput.c (gen_insn): Workaround for VMS printf %s bug.
5891:
5892: * gen*.c: Include config.h. Whenever exiting, use
5893: SUCCESS_EXIT_CODE or FATAL_EXIT_CODE.
5894:
5895: * config-*.h: Define SUCCESS_EXIT_CODE and FATAL_EXIT_CODE.
5896: * config-vms.h: New file, mostly like config-vax.h.
5897:
5898: Wed Feb 17 13:35:34 1988 Richard Stallman (rms at wheaties.ai.mit.edu)
5899:
5900: * cccp.c: VMS support from Kashtan.
5901: Some #include files are conditional.
5902: Use file_size_and_mode instead of fstat.
5903: When reading file contents, the size we get from that
5904: is just an upper bound; don't assume it must match.
5905: Replacement definitions of read and write for VMS.
5906: Different default include directories.
5907: Conditionalize the setrlimit code on RLIMIT_STACK.
5908: Use SUCCESS_EXIT_CODE when exiting if no errors;
5909: both that and FATAL_EXIT_CODE are not #defined if already defined.
5910:
5911: Treat $ as an identifier-character if DOLLARS_IN_IDENTIFIERS.
5912: Rename the `delete' function as `delete_macro'
5913: to avoid VMS name conflict.
5914:
5915: * cexp.y: Treat $ as an identifier-character if DOLLARS_IN_IDENTIFIERS.
5916:
5917: * stmt.c (fixup_memory_offset): Do big-endian compensation
5918: only within a word, not for DImode vs SImode.
5919:
5920: * stmt.c (fixup_var_refs): Don't fix up the insn to load the var
5921: from its own stack slot; delete it instead.
5922:
5923: * tm-ns32k.h (MODES_TIEABLE_P): DImode is like DFmode.
5924:
5925: * tree.c (MAX_HASH_TABLE): 1009 (more prime) instead of 1008.
5926:
5927: * decl.c (duplicate_decls): If merged type is OLD's type,
5928: keep OLD's DECL_SIZE and DECL_SIZE_UNIT.
5929:
5930: * gen*.c (xmalloc, xrealloc): Call `fatal' if memory is full.
5931:
5932: * reload1.c (choose_reload_targets): If a mode doesn't fit the
5933: reload register, and the insn is an ASM_OPERANDS, ignore the reload.
5934: Otherwise, final would crash.
5935:
5936: * expmed.c (expand_shift): Two new strategies for lshr on short/char:
5937: widen and do ashr, or widen and do extzv.
5938:
5939: * vax.md (peepholes): Use dead_or_set_p to check for eliminable
5940: intermediate result, rather than requiring a match with final result.
5941:
5942: * local-alloc.c (block_alloc): Testing frame_pointer_needed is
5943: enough; no need to test FRAME_POINTER_REQUIRED, etc.
5944: * global-alloc.c (find_reg): Likewise.
5945: * reload1.c (reload): Likewise for flag_omit_frame_pointer
5946:
5947: * jump.c (delete_insn): If not `optimize', don't complain
5948: about finding an already-deleted insn in the chain.
5949:
5950: Tue Feb 16 17:14:54 1988 Richard Stallman (rms at wheaties.ai.mit.edu)
5951:
5952: * final.c: Don't define N_SOL and N_SLINE if already defined.
5953:
5954: * final.c (output_source_line):
5955: Typo calling ASM_OUTPUT_SOURCE_FILENAME.
5956:
5957: * flow.c (INSN_VOLATILE): fix a typo.
5958:
5959: Fri Feb 12 16:48:16 1988 Richard Stallman (rms at frosted-flakes.ai.mit.edu)
5960:
5961: * final.c (final): for `asm' without operands, output literally.
5962:
5963: Thu Feb 11 12:44:41 1988 Richard Stallman (rms at frosted-flakes.ai.mit.edu)
5964:
5965: * symout.c (symout_record_fields): Handle nameless fields.
5966: * symout.c (symout_record_field_names): Likewise.
5967:
5968: * typecheck.c (require_complete_type): `void' is a complete type.
5969: * typecheck.c (build_function_call): Don't complain if result is void.
5970:
5971: * tm-hp9k320.h: Change definition of ASM_SPEC to +X, not -X.
5972:
5973: * cccp.c (main): Expected object file name for foo.cc is foo.o.
5974:
5975: Wed Feb 10 16:04:58 1988 Richard Stallman (rms at frosted-flakes.ai.mit.edu)
5976:
5977: * reload1.c (reload): Initialize `regmask' to zero.
5978: Class number is in I, not in CLASS, when setting its elements.
5979: Don't let J+K be too large.
5980:
5981: * reload1.c (potential_reload_regs): Make it a `short'
5982: since that can't be unsigned.
5983:
5984: * cccp.c (warning): New function, called like `error'.
5985: * cccp.c (do_define): Make redefinition just a warning.
5986:
5987: Tue Feb 9 13:28:00 1988 Richard Stallman (rms at frosted-flakes.ai.mit.edu)
5988:
5989: * decl.c (grokdeclarator): Don't be fooled by ERROR_MARK as a declspec.
5990:
5991: * toplev.c (compile_file): Strip final .c or .co from .sym file name.
5992:
5993: * gcc.c: When running `as', specify the .sym file if -gg.
5994:
5995: Mon Feb 8 11:26:26 1988 Richard Stallman (rms at frosted-flakes.ai.mit.edu)
5996:
5997: * expmed.c (store_fixed_bit_field): Don't try gen_lowpart on VALUE
5998: if it's a subreg since it might lose; use convert_to_mode instead.
5999:
6000: * tm-hp9k320.h: Define TARGET_MEM_FUNCTIONS.
6001: * expr.c (emit_block_move, emit_push_insn, clear_storage):
6002: If TARGET_MEM_FUNCTIONS, generate calls to memcpy and memset
6003: instead of bcopy and bzero.
6004: * optabs.c (emit_cmp_insn): Likewise for memcmp vs bcmp.
6005:
6006: * stmt.c (expand_goto): New temp var to avoid RT/PC compiler bug.
6007:
6008: Sun Feb 7 12:20:23 1988 Richard Stallman (rms at frosted-flakes.ai.mit.edu)
6009:
6010: * flow.c (mark_used_regs, mark_set_regs):
6011: Handle hard regs in multiword modes: set the bits for each
6012: distinct register-number that makes up the multiword mode.
6013: Necessary because function arg registers can inevitably
6014: live across basic blocks.
6015:
6016: * cse.c (canon_hash): Function arg and value registers no longer
6017: considered volatile, because flow should now handle the code that
6018: can result from cse'ing them.
6019:
6020: * cse.c (make_regs_eqv): Abort if OLD is invalid.
6021: * cse.c (reg_invalidate): Abort if reg already invalid has eqvs.
6022:
6023: Sat Feb 6 16:25:32 1988 Richard Stallman (rms at frosted-flakes.ai.mit.edu)
6024:
6025: * gcc.c (main): Specific error msg if no input files.
6026:
6027: Fri Feb 5 17:56:00 1988 Richard Stallman (rms at frosted-flakes.ai.mit.edu)
6028:
6029: * stmt.c (expand_decl, put_var_into_stack, assign_parms):
6030: Set in_struct on a MEM if the variable is an aggregate or union.
6031: * varasm.c (assemble_variable): Set in_struct on aggregate vars.
6032:
6033: Thu Feb 4 11:52:30 1988 Richard Stallman (rms at frosted-flakes.ai.mit.edu)
6034:
6035: * m68k.md (movsf): Correct two fmove.x to fmove.s.
6036:
6037: * expmed.c (extract_fixed_bit_field):
6038: Must always generate an `and' to mask the bitfield
6039: unless its width is the same as the output machine mode.
6040:
6041: * version 1.18 released.
6042:
6043: Wed Feb 3 08:41:20 1988 Richard Stallman (rms at frosted-flakes.ai.mit.edu)
6044:
6045: * fold-const.c (fold): Convert EXPR's operands before returning them.
6046:
6047: Tue Feb 2 15:35:18 1988 Richard Stallman (rms at frosted-flakes.ai.mit.edu)
6048:
6049: * reload.c (find_reloads_address_1):
6050:
6051: * typecheck.c (default_conversion): Handle COMPOUND_EXPR arrays.
6052:
6053: Mon Feb 1 18:53:05 1988 Richard Stallman (rms at frosted-flakes.ai.mit.edu)
6054:
6055: * ns32k.md: operand 0 of all unsigned divide/modulus insns
6056: is now register_operand.
6057:
6058: * stdarg.h: Make va_list be char *, not char *[1].
6059: Latest draft doesn't say it must be an array type.
6060:
6061: Sun Jan 31 11:14:07 1988 Richard Stallman (rms at frosted-flakes.ai.mit.edu)
6062:
6063: * flow.c (find_basic_blocks): Add temp var to avoid Sequent
6064: compiler bug.
6065:
6066: * tm-ns32k.h (GO_IF_LEGITIMATE_ADDRESS): Don't allow pushes or pops
6067: since there are special insn patterns for them.
6068: Resubroutinize and add temp vars to make expressions smaller.
6069: * ns32k.md: Add a few more special stack insns; now there are enough.
6070:
6071: * tm-sequent.h: Definitions of DBX_NO_XREFS and DBX_CONTIN_LENGTH.
6072:
6073: * reload1.c (choose_reload_targets): Handling of reload_strict_low
6074: is needed for input reloads as well as output, since a strict_low_part
6075: operand is normally a read-write operand.
6076:
6077: * reload1.c (reload): The mode a reload needs is the wider of
6078: the input and output modes--just as it is in choose_reload_targets.
6079:
6080: * reload.c (find_dummy_reload): If IN and OUT have different widths
6081: and one of them exceeds a word, don't find any dummy reload.
6082:
6083: * toplev.c (compile_file): Allocate enough space for .jump2 filename.
6084:
6085: Sat Jan 30 10:35:46 1988 Richard Stallman (rms at frosted-flakes.ai.mit.edu)
6086:
6087: * output-ns32k.c (print_operand_address):
6088: Print addresses of the form C1+(N*REG+C2) which currently
6089: are accepted as legitimate memory addresses.
6090:
6091: * tm-sequent.h: Simple bugs in PRINT_OPERAND, TARGET_DEFAULT
6092: and SEQUENT_ADDRESS_BUG.
6093:
6094: * gen*.c: Must explicitly exit; returning from `main' fails
6095: to indicate nonzero status due to bug in Unix.
6096:
6097: * parse.y (check_line_number): Ignore entire line of unrecognized
6098: #-directive; no error if it is `pragma'.
6099:
6100: Fri Jan 29 06:46:01 1988 Richard Stallman (rms at frosted-flakes.ai.mit.edu)
6101:
6102: * genrecog.c, genextract.c, genoutput.c: Define bcopy and/or bzero.
6103:
6104: * cccp.c (do_define): Make defn->argnames long enough in no-args case.
6105:
6106: * reload1.c (reload): Make basic_block_needs 0 until after the
6107: frame pointer reg is spilled, so that ALL pseudos in it are spilled.
6108:
6109: * typecheck.c (truthvalue_conversion):
6110: Strip a NOP_EXPR only if it extends, not if it truncates.
6111: (build_unary_op): For TRUTH_NOT_EXPR, call invert_truthvalue
6112: to simplify.
6113:
6114: * Fixes for HPUX support from cph:
6115: * tm-hp9k320.h: Correct names of floating-point registers.
6116: Fix typos in ASM_OUTPUT_OPCODE; also convert `fmove' to `fmov'.
6117: * Makefile (comments for HPUX):
6118: cph says -Wd,-X isn't needed in CFLAGS, nor -lBSD in CLIB.
6119: Also that -g can't be used in CFLAGS with HP's pcc.
6120: * conf-hp9k320.h: New file, like config-m68k.h but with
6121: #defines for the bstring functions.
6122: * m68k.md: Add else-clauses to the HPUX_ASM conditionals on cmp insns.
6123: Reinsert mistakenly-deleted MOTOROLA conditionals around
6124: some OUTPUT_JUMPs.
6125:
6126: Thu Jan 28 09:51:41 1988 Richard Stallman (rms at frosted-flakes.ai.mit.edu)
6127:
6128: * jump.c (jump_back_p): If TARGET is unconditional, return 0.
6129:
6130: Wed Jan 27 04:18:29 1988 Richard Stallman (rms at frosted-flakes.ai.mit.edu)
6131:
6132: * combine.c (subst): Simplify (plus (plus x c1) c2).
6133:
6134: * expr.c (emit_push_insn): Don't use small-block push-insns for BLKmode
6135: when one of them would be affected by PUSH_ROUNDING.
6136: Instead, make all the space and then copy.
6137: * expr.c (expand_call): Don't apply PUSH_ROUNDING if BLKmode.
6138:
6139: * Allow `asm' with operands to be marked volatile.
6140: * cse.c (canon_hash): Don't record ASM_OPERANDS that has `volatil'.
6141: * loop.c (invariant_p): ASM_OPERANDS with `volatil' can't be invariant.
6142: * flow.c (volatile_refs_p): Note ASM_OPERANDS that are volatile.
6143: * stmt.c (expand_asm_operands): New arg VOL; mark ASM_OPERANDS as vol.
6144: * typecheck.c (c_expand_asm_operands): New arg VOL.
6145: * parse.y: allow a TYPE_QUAL after ASM.
6146:
6147: * Make cse handle `asm' with operands:
6148: * cse.c (canon_hash): Hash string operands by contents, not address.
6149: * cse.c (exp_equiv_p): Compare string operands with strcmp.
6150: * rtl.c (rtx_equal_p): Compare string operands with strcmp.
6151:
6152: * decl.c (init_decl_processing): Once sizetype is set,
6153: correct the type of the sizes of types already made.
6154:
6155: * cccp.c (do_defines): Don't reject #define foo{a}.
6156:
6157: Tue Jan 26 04:53:16 1988 Richard Stallman (rms at frosted-flakes.ai.mit.edu)
6158:
6159: * reload.c (find_reloads): Now that `asm' is limited to
6160: MAX_RECOG_OPERANDS, eliminate dynamic allocation of `constraints'
6161: and `constraints1', and go back to `recog_operand' instead of
6162: `operands'.
6163:
6164: * typecheck.c (c_expand_asm_operands): New fn to handle `asm' for C.
6165: Calls expand_asm_operands, and handles output operands that
6166: the other function cannot handle.
6167:
6168: * parse.y: Call that function.
6169:
6170: * stmt.c (expand_asm_operands): Error if too many operands.
6171: #include insn-config.h to get MAX_RECOG_OPERANDS.
6172:
6173: * expr.c (expand_assignment): Use store_field to handle
6174: structure fields and array elements.
6175:
6176: * output-m68k.c (output_move_double): PUSHOP and POPOP were swapped.
6177: Handle insns that push an sp-relative address onto sp;
6178: these can arise with -fomit-frame-pointer.
6179: BUG? Do unoffsetable mem refs using sp and fp lose?
6180:
6181: * m68k.md (movdi,movdf): Allow unoffsetable mem refs
6182: only if the other operand is a register.
6183:
6184: * m68k.md (zero_extendqisi2): SGS conditionals deleted.
6185: Supposedly the MOTOROLA syntax works for those addresses.
6186:
6187: * typecheck.c (default_conversion):
6188: If flag_traditional, preserve unsignedness when promoting ints,
6189: and promote float to double.
6190:
6191: * typecheck.c (build_binary_op_nodefault):
6192: Allow comparisons between pointers and ints.
6193: If not -traditional, warn about them.
6194:
6195: Mon Jan 25 02:11:18 1988 Richard Stallman (rms at frosted-flakes.ai.mit.edu)
6196:
6197: * expmed.c ({extract,store}_split_bit_field):
6198: Functions {extract,store}_split_reg_bit_field now work for memory
6199: also, and therefore are renamed.
6200: * ({extract,store}_fixed_bit_field): Call those fns when a field
6201: is split across two words.
6202: Also, preserve the `volatil' bit on memory refs.
6203:
6204: * output-m68k.c (output_move_double): Handle nonoffsetable mem refs.
6205: * m68k.md: Relax constraints on movdi, movdf.
6206:
6207: * decl.c (init_decl_processing): Define `int' and `char' first.
6208: Set `sizetype' explicitly.
6209:
6210: * stmt.c (fixup_var_refs_1): May not just return when a SET
6211: doesn't have VAR as its src or dest.
6212:
6213: * varasm.c: Don't include c-tree.h.
6214:
6215: * decl.c (build_struct): Split this function into three:
6216: `xref_tag', `start_struct' and `finish_struct'.
6217: `xref_tag' subsumes `xref_enum'.
6218:
6219: * parse.y (structsp): When parsing `struct foo {...}', define the tag
6220: as a cross-ref before parsing the components. Use the three new fns.
6221:
6222: * regclass.c (regclass): Recognize new-format ASM_OPERANDS insns
6223: with `asm_noperands', and scan their operands as usual.
6224:
6225: * cse.c: In numerous functions such as canon_hash, rtx_cost, etc.
6226: that do tree-walk on rtx, handle vectors of subexpressions.
6227:
6228: * loop.c (invariant_p): Likewise.
6229:
6230: * jump.c (delete_insn): Two bugs:
6231: If insn already deleted, return the first following nondeleted.
6232: Deleting a jump's label can delete NEXT. Make sure return value
6233: is always the first insn following INSN and not yet deleted.
6234:
6235: Sun Jan 24 02:27:49 1988 Richard Stallman (rms at frosted-flakes.ai.mit.edu)
6236:
6237: * rtl.def (ASM_OPERANDS): Change the rtl expression of an
6238: `asm' with operands so it looks like this for one output operand:
6239: (set OUTPUT (asm_operands:OUTPUTMODE INSNSTRING OUTPUTCONSTRAINT
6240: 0 INPUTS INPUTCONSTRAINTS)).
6241: and like this for multiple outputs:
6242: (PARALLEL [
6243: (set OUTPUT0 (asm_operands:OUTPUTMODE INSNSTRING OUTPUTCONSTRAINT
6244: 0 INPUTS INPUTCONSTRAINTS)).
6245: (set OUTPUT1 (asm_operands:OUTPUTMODE1 INSNSTRING OUTPUTCONSTRAINT1
6246: 1 INPUTS INPUTCONSTRAINTS))])
6247:
6248: * parse.y: Change parsing of `asm' to distinguish input and output
6249: operands. Separate them with colon; separate the string with colon.
6250:
6251: * stmt.c (expand_asm_operands): Receive inputs and outputs separately.
6252: Generate the new rtl format.
6253:
6254: * recog.c (asm_noperands, decode_asm_operands): New fns
6255: for extracting the operands and constraints from these insns.
6256:
6257: * final.c (final): Recognize and output the new rtl format
6258: using those new functions.
6259:
6260: * reload.c (find_reloads): Recognize and get constraints
6261: from the new rtl format using those new functions.
6262: New variable `operand_modes' holds the machine modes of the
6263: operands, obtained one way for ASM_OPERANDS insns and another
6264: for other insns.
6265:
6266: * rtl.c (note_stores): Calling convention
6267: is changed: the first arg FUNCTION now receives as its 2nd arg
6268: 1 if clobbering, 0 if setting. Used to be the CLOBBER or SET rtx.
6269:
6270: * local-alloc.c (reg_is_set): This fn is called from note_stores;
6271: change its arguments.
6272:
6273: * tm-m68k.h (FIXUP_FRAME_POINTER_ADDRESSES):
6274: Use frame_pointer_rtx to recognize intended frame-pointer refs
6275: and not recognize pseudo-regs that were allocated to the frame
6276: pointer register.
6277:
6278: * emit-rtl.c: All refs to frame pointer use a single rtx, in
6279: frame_pointer_rtx. Likewise arg_pointer_rtx for the arg pointer.
6280: If they are the same register, these are the same rtx.
6281: Initialize them in init_emit.
6282: * rtl.h: Declare these vars.
6283:
6284: * stmt.c (assign_parms, assign_stack_local): Use those rtx's.
6285:
6286: Sat Jan 23 00:32:10 1988 Richard Stallman (rms at frosted-flakes.ai.mit.edu)
6287:
6288: * reload.c (find_reloads): Don't combine_reloads if `&' constraint
6289: was used.
6290:
6291: * parse.y: Parse `asm' with operands.
6292: * stmt.c (expand_asm_params): New fn: generate an ASM_OPERANDS for
6293: `asm' with operands.
6294: * final.c (final): Output an ASM_OPERANDS insn-body.
6295: * regclass.c (regclass): Ignore ASM_OPERANDS, like ASM_INPUT.
6296:
6297: * reload.c (find_reloads): Handle reloading of ASM_OPERANDS.
6298: The number of operands can no longer be bounded.
6299: For example we can't always put the operands in recog_operands.
6300:
6301: New locals OPERANDS and OPERAND_LOCS point to alloca'd vectors of
6302: operands and their locations. New locals CONSTRAINTS and CONSTRAINTS1
6303: hold alloca'd vectors of constraints.
6304:
6305: Unfortunately this isn't enough; every vector with length
6306: MAX_RECOG_OPERANDS needs to be dynamically allocated.
6307: Would this be too slow? For now, a cheap "solution" is to delete
6308: any insn that has too many operands.
6309:
6310: * rtl.def: Delete VOLATILE, UNCHANGING and UNDESCRIBED.
6311: Add ASM_OPERANDS.
6312:
6313: * regclass.c (reg_class_record): Delete ref to UNCHANGING.
6314: * loop.c (invariant_p):
6315: * rtl.c (rtx_varies_p):
6316:
6317: * cccp.c: Define __VERSION__.
6318:
6319: * decl.c (shadow_tag): TYPE_NAME doesn't work to get the tag-name
6320: of a struct, so use new function lookup_tag_reverse.
6321: * decl.c (lookup_tag_reverse): Given a type, return its tag name.
6322:
6323: * symout.c (symout_source_file): Output one `struct source'.
6324: * symout.c (symout_lines): Output all of them, and the sourcevector.
6325: * gdbfiles.h: New file for communication between final.c and symout.c.
6326:
6327: * final.c (output_source_line): New arg WRITE_SYMBOLS says write
6328: new GDB-format linenumber info. Assigns a filenum to each source
6329: file name and keeps track of the correspondence.
6330:
6331: * cccp.c (do_include): Output the -M info after searching the dirs;
6332: include the actual dir name. Don't generate "./" for current dir.
6333:
6334: Fri Jan 22 04:10:10 1988 Richard Stallman (rms at frosted-flakes)
6335:
6336: * tm-news800.h: Delete override of INDIRECTABLE_1_ADDRESS.
6337: Output is faster if it doesn't use 32-bit displacements.
6338:
6339: * reload.c (combine_reloads): New function.
6340: If possible, find an input reload
6341: and an output reload that can be turned into one input-output reload.
6342: The old output-reload is marked as inoperative: reload_out
6343: and reload_in both zero. This is called from find_reloads.
6344:
6345: * reload1.c (reload, choose_reload_targets): Ignore inoperative
6346: reloads.
6347:
6348: * Print warnings for variables that could be clobbered by `longjmp'.
6349: * expr.c (expand_call): Generate a NOTE_INSN_SETJMP whenever
6350: `setjmp' or `_setjmp' is called.
6351: * flow.c (propagate_block): When NOTE_INSN_SETJMP is seen,
6352: record the live regs in `regs_live_at_setjmp'.
6353: * stmt.c (uninitialized_vars_warning): Warn about vars that have regs
6354: that are set more than once and are marked in `regs_live_at_setjmp'.
6355: Works through function `regno_clobbered_by_longjmp'.
6356: * rtl.h: Define NOTE_INSN_SETJMP.
6357:
6358: * genrecog.c (try_merge_2): When enforce_modes, keep all the
6359: alternatives segregated by modes and keep the modes in numerical order.
6360: * genrecog.c (write_tree): Make conditions for switch-on-modes
6361: know what difference enforce_mode makes.
6362:
6363: Thu Jan 21 00:12:35 1988 Richard Stallman (rms at frosted-flakes)
6364:
6365: * tm-ns32k.h: Use Stein's definitions of PRINT_OPERAND{,_ADDRESS};
6366: move the Sequent definitions info tm-sequent.h.
6367: Handle %$ in both old and new PRINT_OPERAND.
6368: Define CPP_PREDEFINES.
6369:
6370: * ns32k.md: Merge some features from Jan Stein's port:
6371: strict_low_part insns, smart output of booleans with small
6372: constant args, acbd insns generalized for other increments.
6373: Use %$ wherever there is an explicit immediate.
6374: Fix shortcomings of adjsp insns: use adjspd in general,
6375: and use adjspb in all the cases that allow it.
6376: Don't bother explicitly clearing CC_REVERSED.
6377: For tstsf/tstdf, output the floating-zero constants
6378: using {f,d}const0_rtx.
6379:
6380: A problem still remains, which is that the Sequent and the
6381: other ns32k assembler syntax require different
6382:
6383: * typecheck.c (unary_complex_value): Use correct datatype for
6384: compound-exprs.
6385:
6386: * gen*.c (main): Use obstack_init instead of obstack_begin.
6387:
6388: * vax.md: define_peephole for andl3 x,y,z; extzv z,....,z
6389:
6390: * m68k.md (tstsi): Use cmpw instead of cmpl to test addr reg.
6391:
6392: * tm-m68k.h: Bugs for 68000 when frame size is over 64k.
6393: For FUNCTION_PROLOGUE, just subtract from sp instead of fp.
6394: For FUNCTION_EPILOGUE, must put the size into a0 and then
6395: all insns must be indexed by a0. And do this even on 68020.
6396:
6397: * tm-isi68.h: Similar changes.
6398: * tm-news800.h, tm-hp9k320.h: Similar changes.
6399:
6400: Wed Jan 20 04:38:21 1988 Richard Stallman (rms at frosted-flakes)
6401:
6402: * cccp.c (error_with_line): New function.
6403: Use it to report the "unterminated whatever" errors.
6404:
6405: * typecheck.c (build_unary_op): Recursive call had missing arg.
6406:
6407: * m68k.md (movhi): If MOTOROLA, the insn that fetches from a
6408: case-dispatch table now defines the LI label as .+2.
6409: * tm-news800.el, tm-hp9k320.h (PRINT_OPERAND_ADDRESS):
6410: Don't subtract 2 when outputting the address in that insn.
6411:
6412: Tue Jan 19 00:02:33 1988 Richard Stallman (rms at frosted-flakes)
6413:
6414: * cse.c (cse_basic_block): Abort if more qtys were used than allocated.
6415:
6416: Mon Jan 18 04:44:28 1988 Richard Stallman (rms at frosted-flakes)
6417:
6418: * cccp.c (special_symbol): tm_mon is origin-0, not origin-1.
6419:
6420: * final.c (output_asm_insn): If %LETTER with no digits,
6421: pass null pointer as the operand.
6422:
6423: * output-m68k.c (singlemove_string): Get rid of %e.
6424:
6425: * stmt.c (fixup_memory_subreg): Convert (SUBREG (MEM a)) to (MEM a').
6426: * stmt.c (fixup_var_ref_1): Use that fn for operands of
6427: SIGN_EXTRACT and ZERO_EXTRACT, since (SUBREG:SI (REG:QI...))
6428: could have turned into (SUBREG:SI (MEM:QI...)), which is unsafe.
6429:
6430: * rtl.c (debug_rtx): Print an rtx on stderr, for debugging.
6431:
6432: Sun Jan 17 04:37:20 1988 Richard Stallman (rms at frosted-flakes)
6433:
6434: * gcc.c: options -M* treated like -M.
6435:
6436: * stmt.c (pushcase): Do nothing if the case index has error_mark type.
6437:
6438: * expr.c (expand_increment): Don't use queue for post-inc on memory
6439: if the add insn requires register args. (Better code for RISCs.)
6440:
6441: Sat Jan 16 02:10:22 1988 Richard Stallman (rms at frosted-flakes)
6442:
6443: * ns32k.md: Change register_operand to general_operand.
6444: * ns32k.md (udivmoddisi4): Use match_dup where required.
6445: Comment it out because it can't accept two independent output args.
6446:
6447: Fri Jan 15 00:02:35 1988 Richard Stallman (rms at frosted-flakes)
6448:
6449: * toplev.c: Include sys/time.h only for BSD. For USG, use time.h.
6450: This is correct for HPUX; don't know about others.
6451:
6452: * gcc.c (execute): Eliminate `union wait'. Make `status' an int.
6453: * gcc.c (execute) [USG]: Use fork instead of vfork.
6454:
6455: * final.c (output_source_line): Use ASM_OUTPUT_SOURCE_{FILENAME,LINE}
6456: if they are defined.
6457:
6458: * tm-hp9k320.h: New name for tm-hpux.h.
6459: * tm-hp9k320.h (ASM_OUTPUT_LOCAL): Add 3rd arg to `lcomm' statements.
6460: * tm-hp9k320.h (ASM_OUTPUT_{DOUBLE,FLOAT}): Use `double' and `float'.
6461: * tm-hp9k320.h (CALL_USED_REGISTERS): Don't save any 68881 regs.
6462: * tm-hp9k320.h (CPP_PREDEFINES): different names defined.
6463: * tm-hp9k320.h (HPUX_ASM, NO_DBX_FORMAT, ASM_SPEC): define these.
6464: * tm-hp9k320.h (ASM_OUTPUT_OPCODE): Convert `ftst' to `ftest'.
6465: * tm-hp9k320.h: Define ASM_OUTPUT_SOURCE_{FILENAME,LINE}.
6466:
6467: * m68k.md: Rename `hpux' conditionals to `HPUX_ASM'.
6468: * m68k.md: Reverse `fcmp' args if HPUX_ASM.
6469:
6470: * cccp.c (print_deps): 2 means give all files, 1 means only user files.
6471: * cccp.c (do_include): Support that.
6472: * cccp.c (main): -MM sets 1, -M alone sets 2.
6473: * cccp.c (main): Give fatal error if I/O error in writing.
6474:
6475: * toplev.c (fatal_io_error): Report I/O error on given filename,
6476: and exit.
6477:
6478: * toplev.c (compile_file): Detect error writing asm_out_file.
6479: Always put asm file's name in asm_file_name for err msg.
6480: * symout.c (symout_finish): Detect error writing symfile.
6481: * symout.c (symout_init): Save filename in symfile_name for err msg.
6482:
6483: * gen*.c: Return 1 if ferror (stdout)--in case disk is full.
6484:
6485: * local-alloc.c (block_alloc): Don't crash if 1st rtx
6486: in a PARALLEL is not a SET.
6487:
6488: * tm-m68k.h, tm-news800.h (PRINT_OPERAND). Eliminate code `%e'.
6489: * m68k.md: Change `%e' to `e' everywhere.
6490: * tm-hpux.h (ASM_OUTPUT_OPCODE): Output `move' as `mov'.
6491:
6492: * tm-m68k.h, tm-news800.h, tm-hpux.h (PRINT_OPERAND):
6493: New code `%!' is output as the name for the cc register.
6494: * m68k.md (insns that use andi to ccr): Use `%!' to avoid
6495: conditionals.
6496:
6497: * cse.c: Record in qty_const_insn the insn that stored the
6498: constant value of a qty. When making a REG_WAS_0 note,
6499: store in it the insn that established the value 0.
6500:
6501: * vax.md (movsi): When checking a REG_WAS_0 note,
6502: verify that the insn it points to hasn't been deleted or made a NOTE.
6503:
6504: Thu Jan 14 00:01:35 1988 Richard Stallman (rms at frosted-flakes)
6505:
6506: * toplev.c: Eliminate error_with_line and warning_with_line.
6507: * parse.y, decl.c: Change remaining calls to those two.
6508:
6509: * tree.c (get_unwidened, get_narrower): To see if a COMPONENT_REF
6510: is unsigned, look at the FIELD_DECL, not at the COMPONENT_REF.
6511:
6512: * rtl.c (print_rtx): Print /v for the `volatil' bit.
6513: * expr.c (expand_assignment expand_expr): If handling a COMPONENT_REF,
6514: note whether it is volatile.
6515:
6516: * fold-const.c (fold): a call to split_tree missed an argument.
6517:
6518: * flow.c (volatile_refs_p): Scan an rtx for volatile mem refs.
6519: * flow.c (life_analysis): Record in INSN_VOLATILE which insns
6520: have any volatile mem refs.
6521: * flow.c (mark_used_regs): Always mark an insn with volatile mem refs.
6522: Always pass INSN as an arg. New arg FINAL now says whether
6523: this is the last time scanning.
6524: * flow.c (propagate_block): Don't delete insns with volatile mem refs.
6525:
6526: * flow.c: Remove all refs to `obey_regdecls'.
6527: Calling this with -noreg just doesn't help -W.
6528:
6529: Wed Jan 13 01:13:07 1988 Richard Stallman (rms at frosted-flakes)
6530:
6531: * decl.c (finish_decl): Error if auto var's size isn't known.
6532: Change type to error_mark_node to avoid crash if the var
6533: is used in an expression, since it has no DECL_RTL.
6534:
6535: * output-m68k.c (output_move_const_single): % -> %% for sprintf.
6536:
6537: * parse.y (yylex): Store token_buffer properly after ellipsis.
6538:
6539: * decl.c (duplicate_decls): Don't call layout_decl
6540: for FUNCTION_DECL or TYPE_DECL.
6541:
6542: * toplev.c (warning_with_decl): New warning function with decl as arg.
6543: * (error_with_decl): similar.
6544:
6545: * decl.c: Replace most `yylinerror' calls with `error_with_decl'.
6546:
6547: * decl.c (build_struct): Reform code to detect erroneous bit-fields.
6548: All such errors are now detected here.
6549: Promote bit-fields to int if appropriate.
6550: If traditional, make all int bit-fields unsigned.
6551: Set DECL_ALIGN for members that are not bit-fields.
6552:
6553: * decl.c (grokfield): Don't set DECL_ALIGN here.
6554:
6555: * stor-layout.c (layout_decl): Don't promote the type of a bit-field.
6556: Use TREE_PACKED to distinguish a bit-field.
6557: Don't check the width because build_struct did that.
6558:
6559: * m68k.md (cmpm): Reject if either operand (address) is a constant.
6560:
6561: Tue Jan 12 15:11:20 1988 Richard Stallman (rms at frosted-flakes)
6562:
6563: * cse.c (canon_reg): Never replace ANY hard reg from reg_rtx
6564: because that could alter the machine mode.
6565:
6566: * tm-news800.h: Redefine INDIRECTABLE_1_ADDRESS only if MOTOROLA.
6567:
6568: Mon Jan 11 13:15:45 1988 Richard Stallman (rms at frosted-flakes)
6569:
6570: * jump.c (follow_jumps): If we find a cycle, make it a jump to self.
6571:
6572: * cse.c (predecide_loop_entry): Give up if chase more than 10 jumps.
6573:
6574: Sun Jan 10 14:52:42 1988 Richard Stallman (rms at frosted-flakes)
6575:
6576: * reload1.c (reload): basic_block_needs (new vector) gets 1
6577: for each basic block that needs a reload.
6578: * reload1.c (spill_hard_reg): Don't spill pseudos that are
6579: confined to a basic block which has no need for any reloads.
6580: * reload1.c (reload): Each cycle that any element of basic_block_needs
6581: changes from 0 to 1, must re-spill all previously spilled regs.
6582:
6583: * regclass.c (record_address_regs):
6584: Skip the charging of ICOST if it is 0.
6585:
6586: * flags.h, toplev.c: New flag -fvolatile.
6587: * typecheck.c (build_indirect_ref): If flag_volatile,
6588: every INDIRECT_REF is marked with TREE_THIS_VOLATILE.
6589:
6590: * fold-const.c (fold): Test in TRUTH_NOT_EXPR case was backward.
6591: Also result type is always `int'.
6592:
6593: Sat Jan 9 04:16:11 1988 Richard Stallman (rms at rice-krispies)
6594:
6595: * flags.h (flag_traditional): New flag.
6596: * toplev.c: recognize -ftraditional and -traditional.
6597: * parse.y (yylex): If flag_traditional, don't recognize
6598: `signed', `const' or `volatile'.
6599:
6600: * decl.c (pushdecl): If flag_traditional, any extern decl
6601: takes effect at top level.
6602:
6603: * tree.c (lvalue_or_else): New 2nd arg for use in error message.
6604: * typecheck.c: All callers pass 2nd arg.
6605:
6606: * global-alloc.c: allocno_preferred_reg can specify a preferred
6607: hard reg for each allocno. If so, try it first (new call to find_reg).
6608:
6609: * global-alloc.c (find_reg): New arg PREFREG specifies reg to try
6610: first.
6611:
6612: * decl.c (build_struct): if :0 bit field at the end, round the
6613: structure size to multiple of EMPTY_FIELD_BOUNDARY.
6614:
6615: * cse.c (make_regs_eqv): Was testing for reg_next_eqv[lastr] == 0
6616: and should be == -1.
6617:
6618: * reload1.c (reload_as_needed): Fix invalid optimization deleting
6619: the previous store into a pseudo-reg that feeds an input-reload.
6620: It is not safe because a later insn may look in the pseudo's stack
6621: slot for the value. Delete the store only if we can eliminate the
6622: pseudo entirely or if the current insn stores a new value there.
6623: Also verify that reload_in[j] is a REG.
6624:
6625: * reload1.c (reload_as_needed): When doing an input reload from a
6626: pseudo that was stored by the previous insn (not as a reload),
6627: redirect the previous insn into the reload register, if this lets
6628: us eliminate the pseudo entirely.
6629:
6630: * reload1.c (reload_as_needed): In both of the above cases, it's
6631: impossible to prevent a stack slot since one was already assigned,
6632: so don't alter reg_n_refs. Instead, set reg_renumber to record
6633: that this pseudo did get a hard reg.
6634:
6635: * stmt.c: Set `volatil' in pseudo-regs for the user's variables.
6636:
6637: * jump.c (delete_insn): Do nothing if insn already deleted.
6638:
6639: * tm-sun{2,3}.h: #define STRUCTURE_SIZE_BOUNDARY 2
6640: for compatibility with Sun PCC. Note that 4.3 vax PCC
6641: does not want this.
6642:
6643: * fold-const.c: Replace truncate_unsigned with force_fit_type
6644: which truncates unsigned types and sign-extends signed types.
6645:
6646: * expr.c (do_jump): emit_queue before outputting the jump insns
6647: that use the comparison.
6648:
6649: * stmt.c: Error message for any goto that jumps into a
6650: binding contour that restores a stack level.
6651:
6652: TREE_PACKED (label) means label was defined inside
6653: such a binding contour that is now exited. Using such a label
6654: is an error.
6655:
6656: TREE_ADDRESSABLE (label) means label was used from a place
6657: outside all such binding contours. If this is 1 when
6658: TREE_PACKED is set to 1, it is an error.
6659:
6660: Any other invalid goto must have a fixup. fixup_gotos detects
6661: such invalid gotos. fixup_gotos takes a second arg, which
6662: is the first insn of the contour now being exited.
6663:
6664: * GNU C version 1.17.
6665:
6666: Local Variables:
6667: mode: indented-text
6668: left-margin: 8
6669: fill-column: 76
6670: version-control: never
6671: End:
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