--- gcc/config/m68k/mot3300.h 2018/04/24 18:14:24 1.1.1.2 +++ gcc/config/m68k/mot3300.h 2018/04/24 18:28:09 1.1.1.4 @@ -1,12 +1,9 @@ -/* Definitions of target machine for GNU compiler. - SysV68 Motorola 3300 Delta Series - - Written by Abramo and Roberto Bagnara - after Alex Crain's 3B1 definitions. - - Bug reports to bagnara@dipisa.di.unipi.it - - Copyright (C) 1987 Free Software Foundation, Inc. +/* Definitions of target machine for GNU compiler, + SysV68 Motorola 3300 Delta Series. + Copyright (C) 1987, 1993, 1994, 1995 Free Software Foundation, Inc. + Contributed by Abramo and Roberto Bagnara (bagnara@dipisa.di.unipi.it) + based on Alex Crain's 3B1 definitions. + Maintained by Philippe De Muyter (phdm@info.ucl.ac.be). This file is part of GNU CC. @@ -22,25 +19,31 @@ GNU General Public License for more deta You should have received a copy of the GNU General Public License along with GNU CC; see the file COPYING. If not, write to -the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ +the Free Software Foundation, 59 Temple Place - Suite 330, +Boston, MA 02111-1307, USA. */ #define MOTOROLA /* Use Motorola syntax rather than "MIT" */ +#define MOTOROLA_BSR /* Use Span-dependent optimized bsr */ #define SGS /* Uses SGS assembler */ #define SGS_CMP_ORDER /* Takes cmp operands in reverse order */ #define SGS_SWAP_W /* Use swap.w rather than just plain swap */ -#define SGS_SWITCH_TABLES /* Different switch table handling */ #define NO_DOLLAR_IN_LABEL #define NO_DOT_IN_LABEL #include "m68k/m68k.h" -/* See m68k.h. 7 means 68020 with 68881. */ +/* See m68k.h. 0407 means 68020-68040. */ #ifndef TARGET_DEFAULT -#define TARGET_DEFAULT 7 +#define TARGET_DEFAULT 0407 #endif +/* -m[c]6800 requires special flag to the assembler. */ + +#undef ASM_SPEC +#define ASM_SPEC "%{m68000:-p 000}%{mc68000:-p 000}" + /* NYI: FP= is equivalent to -msoft-float */ /* We use /lib/libp/lib* when profiling. */ @@ -71,6 +74,10 @@ the Free Software Foundation, 675 Mass A /* Every structure or union's size must be a multiple of 2 bytes. */ #define STRUCTURE_SIZE_BOUNDARY 16 + +/* Follow sysV68 cc regarding alignment imposed by char:0; */ + +#define PCC_BITFIELD_TYPE_MATTERS 1 /* Allocation boundary (in *bits*) for storing arguments in argument list. */ /* Be compatible with native compiler. */ @@ -88,6 +95,11 @@ the Free Software Foundation, 675 Mass A #undef REGISTER_PREFIX #define REGISTER_PREFIX "%" +#if 0 +#undef LOCAL_LABEL_PREFIX +#define LOCAL_LABEL_PREFIX "~" +#endif + #undef IMMEDIATE_PREFIX #define IMMEDIATE_PREFIX "&" @@ -97,99 +109,17 @@ the Free Software Foundation, 675 Mass A "%a0", "%a1", "%a2", "%a3", "%a4", "%a5", "%fp", "%sp", \ "%fp0", "%fp1", "%fp2", "%fp3", "%fp4", "%fp5", "%fp6", "%fp7"} -#if 0 /* phdm@info.ucl.ac.be says the standard ones work. */ -#undef FUNCTION_PROLOGUE -#define FUNCTION_PROLOGUE(FILE, SIZE) \ -{ register int regno; \ - register int mask = 0; \ - extern char call_used_regs[]; \ - int fsize = (SIZE); \ - if (frame_pointer_needed) \ - { if (fsize < 0x8000) \ - fprintf (FILE, "\tlink.w %%fp,&%d\n", -fsize); \ - else if (TARGET_68020) \ - fprintf (FILE, "\tlink.l %%fp,&%d\n", -fsize); \ - else \ - fprintf (FILE, "\tlink.w %%fp,&0\n\tsub.l &%d,%%sp\n", fsize); } \ - for (regno = 16; regno < FIRST_PSEUDO_REGISTER; regno++) \ - if (regs_ever_live[regno] && ! call_used_regs[regno]) \ - mask |= 1 << (regno - 16); \ - if (mask != 0) \ - fprintf (FILE, "\tfmovem &0x%x,-(%%sp)\n", mask & 0xff); \ - mask = 0; \ - for (regno = 0; regno < 16; regno++) \ - if (regs_ever_live[regno] && ! call_used_regs[regno]) \ - mask |= 1 << (15 - regno); \ - if (frame_pointer_needed) \ - mask &= ~ (1 << (15-FRAME_POINTER_REGNUM)); \ - if (exact_log2 (mask) >= 0) \ - fprintf (FILE, "\tmov.l %s,-(%%sp)\n", reg_names[15 - exact_log2 (mask)]); \ - else if (mask) fprintf (FILE, "\tmovm.l &0x%x,-(%%sp)\n", mask); } -#endif /* 0 */ +#undef FUNCTION_EXTRA_EPILOGUE +#define FUNCTION_EXTRA_EPILOGUE(FILE, SIZE) \ + { extern int current_function_returns_pointer; \ + if ((current_function_returns_pointer) && \ + ! find_equiv_reg (0, get_last_insn (), 0, 0, 0, 8, Pmode)) \ + asm_fprintf (FILE, "\tmov.l %Ra0,%Rd0\n"); } #undef FUNCTION_PROFILER #define FUNCTION_PROFILER(FILE, LABEL_NO) \ fprintf (FILE, "\tmov.l &LP%%%d,%%a0\n\tjsr mcount%%\n", (LABEL_NO)) -#if 0 /* phdm@info.ucl.ac.be says the standard ones work. */ -#undef FUNCTION_EPILOGUE -#define FUNCTION_EPILOGUE(FILE, SIZE) \ -{ register int regno; \ - register int mask, fmask; \ - register int nregs; \ - int offset, foffset; \ - extern char call_used_regs[]; \ - int fsize = (SIZE); \ - int big = 0; \ - nregs = 0; fmask = 0; \ - for (regno = 16; regno < FIRST_PSEUDO_REGISTER; regno++) \ - if (regs_ever_live[regno] && ! call_used_regs[regno]) \ - { nregs++; fmask |= 1 << (23 - regno); } \ - foffset = nregs * 12; \ - nregs = 0; mask = 0; \ - if (frame_pointer_needed) regs_ever_live[FRAME_POINTER_REGNUM] = 0; \ - for (regno = 0; regno < 16; regno++) \ - if (regs_ever_live[regno] && ! call_used_regs[regno]) \ - { nregs++; mask |= 1 << regno; } \ - offset = foffset + nregs * 4; \ - if (offset + fsize >= 0x8000 && frame_pointer_needed) \ - { fprintf (FILE, "\tmov.l &%d,%%a0\n", -fsize); \ - fsize = 0, big = 1; } \ - if (exact_log2 (mask) >= 0) { \ - if (big) \ - fprintf (FILE, "\tmov.l -%d(%%fp,%%a0.l),%s\n", \ - offset + fsize, reg_names[exact_log2 (mask)]); \ - else if (! frame_pointer_needed) \ - fprintf (FILE, "\tmov.l (%%sp)+,%s\n", \ - reg_names[exact_log2 (mask)]); \ - else \ - fprintf (FILE, "\tmov.l -%d(%%fp),%s\n", \ - offset + fsize, reg_names[exact_log2 (mask)]); } \ - else if (mask) { \ - if (big) \ - fprintf (FILE, "\tmovm.l -%d(%%fp,%%a0.l),&0x%x\n", \ - offset + fsize, mask); \ - else if (! frame_pointer_needed) \ - fprintf (FILE, "\tmovm.l (%%sp)+,&0x%x\n", mask); \ - else \ - fprintf (FILE, "\tmovm.l -%d(%%fp),&0x%x\n", \ - offset + fsize, mask); } \ - if (fmask) { \ - if (big) \ - fprintf (FILE, "\tfmovem -%d(%%fp,%%a0.l),&0x%x\n", \ - foffset + fsize, fmask); \ - else if (! frame_pointer_needed) \ - fprintf (FILE, "\tfmovem (%%sp)+,&0x%x\n", fmask); \ - else \ - fprintf (FILE, "\tfmovem -%d(%%fp),&0x%x\n", \ - foffset + fsize, fmask); } \ - if (frame_pointer_needed) \ - fprintf (FILE, "\tunlk %%fp\n"); \ - if (current_function_pops_args) \ - fprintf (FILE, "\trtd &%d\n", current_function_pops_args); \ - else fprintf (FILE, "\trts\n"); } -#endif /* 0 */ - /* This is how to output an insn to push a register on the stack. It need not be very fast code. */ @@ -223,10 +153,10 @@ the Free Software Foundation, 675 Mass A #define ASM_FILE_START(FILE) \ output_file_directive ((FILE), main_input_filename) -/* Don't try to define `gcc_compiled.' since the assembler might not - accept symbols with periods and GDB doesn't run on this machine anyway. */ +/* The sysV68 assembler does not accept dots in labels. + Let's use percent instead */ -#define ASM_IDENTIFY_GCC(FILE) +#define ASM_IDENTIFY_GCC(FILE) fputs("gcc2_compiled%:\n", FILE) /* Names to predefine in the preprocessor for this target machine. */ /* ihnp4!lmayk!lgm@eddie.mit.edu says mc68000 and m68k should not be here, @@ -235,24 +165,6 @@ output_file_directive ((FILE), main_inpu #undef CPP_PREDEFINES #define CPP_PREDEFINES "-Dm68k -Dunix -DsysV68 -D__motorola__ -Asystem(unix) -Asystem(svr3) -Acpu(m68k) -Amachine(m68k)" -#if 0 /* phdm@info.ucl.ac.be says the right way is with PARM_BOUNDARY. */ -/* Specify how to pad function arguments. - Value should be `upward', `downward' or `none'. - Same as the default, except no padding for large or variable-size args. */ - -#define FUNCTION_ARG_PADDING(MODE, TYPE) \ - (((MODE) == BLKmode \ - ? ((TYPE) && TREE_CODE (TYPE_SIZE (TYPE)) == INTEGER_CST \ - && int_size_in_bytes (TYPE) < PARM_BOUNDARY / BITS_PER_UNIT) \ - : GET_MODE_BITSIZE (MODE) < PARM_BOUNDARY) \ - ? downward : none) -#endif /* 0 */ - -/* Override part of the obstack macros. */ - -#define __PTR_TO_INT(P) ((int)(P)) -#define __INT_TO_PTR(P) ((char *)(P)) - #undef TARGET_VERSION #define TARGET_VERSION fprintf (stderr, " (68k, SGS/AT&T sysV68 syntax)"); @@ -264,26 +176,32 @@ output_file_directive ((FILE), main_inpu 1, 1, 0, 0, 0, 0, 0, 1, \ 1, 1, 0, 0, 0, 0, 0, 0} +/* This will return small structs in d0. */ +#define RETURN_IN_MEMORY(type) \ + ((TYPE_MODE (type) == BLKmode) \ + || (AGGREGATE_TYPE_P (type) \ + && GET_MODE_SIZE (TYPE_MODE (type)) > UNITS_PER_WORD)) + +/* Don't default to pcc-struct-return, because we have already specified + exactly how to return structures in the RETURN_IN_MEMORY macro. */ +#define DEFAULT_PCC_STRUCT_RETURN 0 + /* If TARGET_68881, return SF and DF values in fp0 instead of d0. */ /* NYI: If FP=M68881U return SF and DF values in d0. */ /* NYI: If -mold return pointer in a0 and d0 */ #undef FUNCTION_VALUE -#define FUNCTION_VALUE(VALTYPE,FUNC) LIBCALL_VALUE (TYPE_MODE (VALTYPE)) - /* sysV68 (brain damaged) cc convention support. */ -/* Commented out until we find a safe way to make it optional. */ -#if 0 #define FUNCTION_VALUE(VALTYPE,FUNC) \ (TREE_CODE (VALTYPE) == REAL_TYPE && TARGET_68881 \ ? gen_rtx (REG, TYPE_MODE (VALTYPE), 16) \ - : (TREE_CODE (VALTYPE) == POINTER_TYPE \ + : (POINTER_TYPE_P (VALTYPE) \ ? gen_rtx (REG, TYPE_MODE (VALTYPE), 8) \ : gen_rtx (REG, TYPE_MODE (VALTYPE), 0))) -#endif /* If TARGET_68881, SF and DF values are returned in fp0 instead of d0. */ +/* Is LIBCALL_VALUE never called with a pointer ? */ #undef LIBCALL_VALUE #define LIBCALL_VALUE(MODE) \ gen_rtx (REG, (MODE), \ @@ -295,15 +213,9 @@ output_file_directive ((FILE), main_inpu d0 may be used, and fp0 as well if -msoft-float is not specified. */ #undef FUNCTION_VALUE_REGNO_P -#define FUNCTION_VALUE_REGNO_P(N) \ - ((N) == 0 || (TARGET_68881 && (N) == 16)) - /* sysV68 (brain damaged) cc convention support. */ -/* Commented out until we find a safe way to make it optional. */ -#if 0 #define FUNCTION_VALUE_REGNO_P(N) \ ((N) == 0 || (N) == 8 || (TARGET_68881 && (N) == 16)) -#endif /* Define this to be true when FUNCTION_VALUE_REGNO_P is true for more than one register. */ @@ -418,7 +330,7 @@ do { long l; \ #undef ASM_OUTPUT_ASCII #define ASM_OUTPUT_ASCII(FILE,PTR,LEN) \ - { register int sp = 0, lp = 0; \ + do { register int sp = 0, lp = 0; \ fprintf ((FILE), "\tbyte\t"); \ loop: \ if ((PTR)[sp] > ' ' && ! ((PTR)[sp] & 0x80) && (PTR)[sp] != '\\') \ @@ -434,207 +346,27 @@ do { long l; \ else \ putc (',', (FILE)); \ goto loop; } \ - putc ('\n', (FILE)); } + putc ('\n', (FILE)); } while (0) + +/* Output a float value (represented as a C double) as an immediate operand. + This macro is a 68k-specific macro. */ -/* Print operand X (an rtx) in assembler syntax to file FILE. - CODE is a letter or dot (`z' in `%z0') or 0 if no letter was specified. - For `%' followed by punctuation, CODE is the punctuation and X is null. - - On the 68000, we use several CODE characters: - '.' for dot needed in Motorola-style opcode names. - '-' for an operand pushing on the stack: - sp@-, -(sp) or -(%sp) depending on the style of syntax. - '+' for an operand pushing on the stack: - sp@+, (sp)+ or (%sp)+ depending on the style of syntax. - '@' for a reference to the top word on the stack: - sp@, (sp) or (%sp) depending on the style of syntax. - '#' for an immediate operand prefix (# in MIT and Motorola syntax - but & in SGS syntax). - '!' for the fpcr register (used in some float-to-fixed conversions). - '$' for the letter `s' in an op code, but only on the 68040. - '&' for the letter `d' in an op code, but only on the 68040. - - 'b' for byte insn (no effect, on the Sun; this is for the ISI). - 'd' to force memory addressing to be absolute, not relative. - 'f' for float insn (print a CONST_DOUBLE as a float rather than in hex) - 'w' for FPA insn (print a CONST_DOUBLE as a SunFPA constant rather - than directly). Second part of 'y' below. - 'x' for float insn (print a CONST_DOUBLE as a float rather than in hex), - or print pair of registers as rx:ry. - 'y' for a FPA insn (print pair of registers as rx:ry). This also outputs - CONST_DOUBLE's as SunFPA constant RAM registers if - possible, so it should not be used except for the SunFPA. */ - -#undef PRINT_OPERAND -#define PRINT_OPERAND(FILE, X, CODE) \ -{ if (CODE == '.') fprintf (FILE, "."); \ - else if (CODE == '#') fprintf (FILE, "&"); \ - else if (CODE == '-') fprintf (FILE, "-(%%sp)"); \ - else if (CODE == '+') fprintf (FILE, "(%%sp)+"); \ - else if (CODE == '@') fprintf (FILE, "(%%sp)"); \ - else if (CODE == '!') fprintf (FILE, "%%fpcr"); \ - else if (CODE == '$') { if (TARGET_68040_ONLY) fprintf (FILE, "s"); } \ - else if (CODE == '&') { if (TARGET_68040_ONLY) fprintf (FILE, "d"); } \ - else if (CODE == '/') \ - fprintf (FILE, "%%"); \ - else if (GET_CODE (X) == REG) \ - fprintf (FILE, "%s", reg_names[REGNO (X)]); \ - else if (GET_CODE (X) == MEM) \ - output_address (XEXP (X, 0)); \ - else if (GET_CODE (X) == CONST_DOUBLE && GET_MODE (X) == SFmode) \ - { REAL_VALUE_TYPE r; long l; \ - REAL_VALUE_FROM_CONST_DOUBLE (r, X); \ +#undef ASM_OUTPUT_FLOAT_OPERAND +#define ASM_OUTPUT_FLOAT_OPERAND(CODE,FILE,VALUE) \ + do { long l; \ REAL_VALUE_TO_TARGET_SINGLE (r, l); \ /* Use hex representation even if CODE is f. as needs it. */ \ - fprintf (FILE, "&0x%x", l); } \ - else if (GET_CODE (X) == CONST_DOUBLE && GET_MODE (X) == DFmode) \ - { REAL_VALUE_TYPE r; int i[2]; \ - REAL_VALUE_FROM_CONST_DOUBLE (r, X); \ - REAL_VALUE_TO_TARGET_DOUBLE (r, i); \ - fprintf (FILE, "&0x%08x%08x", i[0], i[1]); } \ - else if (GET_CODE (X) == CONST_DOUBLE && GET_MODE (X) == XFmode) \ - { REAL_VALUE_TYPE r; \ - REAL_VALUE_FROM_CONST_DOUBLE (r, X); \ - ASM_OUTPUT_LONG_DOUBLE_OPERAND (FILE, r); } \ - else { putc ('&', FILE); output_addr_const (FILE, X); }} - -#undef PRINT_OPERAND_ADDRESS -#define PRINT_OPERAND_ADDRESS(FILE, ADDR) \ -{ register rtx reg1, reg2, breg, ireg; \ - register rtx addr = ADDR; \ - rtx offset; \ - switch (GET_CODE (addr)) \ - { \ - case REG: \ - fprintf (FILE, "(%s)", reg_names[REGNO (addr)]); \ - break; \ - case PRE_DEC: \ - fprintf (FILE, "-(%s)", reg_names[REGNO (XEXP (addr, 0))]); \ - break; \ - case POST_INC: \ - fprintf (FILE, "(%s)+", reg_names[REGNO (XEXP (addr, 0))]); \ - break; \ - case PLUS: \ - reg1 = 0; reg2 = 0; \ - ireg = 0; breg = 0; \ - offset = 0; \ - if (CONSTANT_ADDRESS_P (XEXP (addr, 0))) \ - { \ - offset = XEXP (addr, 0); \ - addr = XEXP (addr, 1); \ - } \ - else if (CONSTANT_ADDRESS_P (XEXP (addr, 1))) \ - { \ - offset = XEXP (addr, 1); \ - addr = XEXP (addr, 0); \ - } \ - if (GET_CODE (addr) != PLUS) ; \ - else if (GET_CODE (XEXP (addr, 0)) == SIGN_EXTEND) \ - { \ - reg1 = XEXP (addr, 0); \ - addr = XEXP (addr, 1); \ - } \ - else if (GET_CODE (XEXP (addr, 1)) == SIGN_EXTEND) \ - { \ - reg1 = XEXP (addr, 1); \ - addr = XEXP (addr, 0); \ - } \ - else if (GET_CODE (XEXP (addr, 0)) == MULT) \ - { \ - reg1 = XEXP (addr, 0); \ - addr = XEXP (addr, 1); \ - } \ - else if (GET_CODE (XEXP (addr, 1)) == MULT) \ - { \ - reg1 = XEXP (addr, 1); \ - addr = XEXP (addr, 0); \ - } \ - else if (GET_CODE (XEXP (addr, 0)) == REG) \ - { \ - reg1 = XEXP (addr, 0); \ - addr = XEXP (addr, 1); \ - } \ - else if (GET_CODE (XEXP (addr, 1)) == REG) \ - { \ - reg1 = XEXP (addr, 1); \ - addr = XEXP (addr, 0); \ - } \ - if (GET_CODE (addr) == REG || GET_CODE (addr) == MULT \ - || GET_CODE (addr) == SIGN_EXTEND) \ - { if (reg1 == 0) reg1 = addr; else reg2 = addr; addr = 0; } \ -/* for OLD_INDEXING \ - else if (GET_CODE (addr) == PLUS) \ - { \ - if (GET_CODE (XEXP (addr, 0)) == REG) \ - { \ - reg2 = XEXP (addr, 0); \ - addr = XEXP (addr, 1); \ - } \ - else if (GET_CODE (XEXP (addr, 1)) == REG) \ - { \ - reg2 = XEXP (addr, 1); \ - addr = XEXP (addr, 0); \ - } \ - } \ - */ \ - if (offset != 0) { if (addr != 0) abort (); addr = offset; } \ - if ((reg1 && (GET_CODE (reg1) == SIGN_EXTEND \ - || GET_CODE (reg1) == MULT)) \ - || (reg2 != 0 && REGNO_OK_FOR_BASE_P (REGNO (reg2)))) \ - { breg = reg2; ireg = reg1; } \ - else if (reg1 != 0 && REGNO_OK_FOR_BASE_P (REGNO (reg1))) \ - { breg = reg1; ireg = reg2; } \ - if (ireg != 0 && breg == 0 && GET_CODE (addr) == LABEL_REF) \ - { int scale = 1; \ - if (GET_CODE (ireg) == MULT) \ - { scale = INTVAL (XEXP (ireg, 1)); \ - ireg = XEXP (ireg, 0); } \ - if (GET_CODE (ireg) == SIGN_EXTEND) \ - fprintf (FILE, "12(%%pc,%s.w", \ - reg_names[REGNO (XEXP (ireg, 0))]); \ - else \ - fprintf (FILE, "12(%%pc,%s.l", \ - reg_names[REGNO (ireg)]); \ - if (scale != 1) fprintf (FILE, "*%d", scale); \ - fprintf (FILE, ")"); \ - break; } \ - if (breg != 0 && ireg == 0 && GET_CODE (addr) == LABEL_REF) \ - { fprintf (FILE, "12(%%pc,%s.l", \ - reg_names[REGNO (breg)]); \ - putc (')', FILE); \ - break; } \ - if (ireg != 0 || breg != 0) \ - { int scale = 1; \ - if (breg == 0) \ - abort (); \ - if (addr != 0) \ - output_addr_const (FILE, addr); \ - fprintf (FILE, "(%s", reg_names[REGNO (breg)]); \ - if (ireg != 0) \ - putc (',', FILE); \ - if (ireg != 0 && GET_CODE (ireg) == MULT) \ - { scale = INTVAL (XEXP (ireg, 1)); \ - ireg = XEXP (ireg, 0); } \ - if (ireg != 0 && GET_CODE (ireg) == SIGN_EXTEND) \ - fprintf (FILE, "%s.w", reg_names[REGNO (XEXP (ireg, 0))]); \ - else if (ireg != 0) \ - fprintf (FILE, "%s.l", reg_names[REGNO (ireg)]); \ - if (scale != 1) fprintf (FILE, "*%d", scale); \ - putc (')', FILE); \ - break; \ - } \ - else if (reg1 != 0 && GET_CODE (addr) == LABEL_REF) \ - { fprintf (FILE, "12(%%pc,%s.w)", \ - reg_names[REGNO (reg1)]); \ - break; } \ - default: \ - if (GET_CODE (addr) == CONST_INT \ - && INTVAL (addr) < 0x8000 \ - && INTVAL (addr) >= -0x8000) \ - fprintf (FILE, "%d", INTVAL (addr)); \ - else \ - output_addr_const (FILE, addr); \ - }} + fprintf ((FILE), "&0x%lx", l); \ + } while (0) + +/* Output a double value (represented as a C double) as an immediate operand. + This macro is a 68k-specific macro. */ +#undef ASM_OUTPUT_DOUBLE_OPERAND +#define ASM_OUTPUT_DOUBLE_OPERAND(FILE,VALUE) \ + do { long l[2]; \ + REAL_VALUE_TO_TARGET_DOUBLE (VALUE, l); \ + fprintf ((FILE), "&0x%lx%08lx", l[0], l[1]); \ + } while (0) /* This is how to store into the string LABEL the symbol_ref name of an internal numbered label where @@ -676,24 +408,19 @@ do { long l; \ #define ASM_OUTPUT_CASE_LABEL(FILE,PREFIX,NUM,TABLE) \ fprintf (FILE, "\tswbeg &%d\n%s%%%d:\n", \ XVECLEN (PATTERN (TABLE), 1), (PREFIX), (NUM)) - -#if 0 -/* At end of a switch table, define LD%n iff the symbol LI%n was defined. */ -#define ASM_OUTPUT_CASE_END(FILE,NUM,TABLE) \ -{ if (switch_table_difference_label_flag) \ - asm_fprintf (FILE, "\t%s %LLD%d,%LL%d-%LLI%d-2.b\n",\ - SET_ASM_OP, (NUM), (NUM), (NUM)) \ - switch_table_difference_label_flag = 0; } -#endif -/* We have to define this to avoid errors. */ -int switch_table_difference_label_flag; +/* sysV68 as cannot handle LD%n(%pc,%reg) */ +#define SGS_NO_LI +/* labelno is not used here */ +#define ASM_OUTPUT_CASE_FETCH(file, labelno, regname)\ + asm_fprintf (file, "12(%Rpc,%s.", regname) + +#define ASM_RETURN_CASE_JUMP return "jmp 8(%%pc,%0.w)" + /* Translate some opcodes to fit the sysV68 assembler syntax. */ /* The opcodes fdmov and fsmov are guesses. */ -#define SWITCH_JUMP_MATCH "jmp 6(%%pc," - /* cliffm@netcom.com says no need for .w suffix on jumps. */ #undef ASM_OUTPUT_OPCODE #define ASM_OUTPUT_OPCODE(FILE, PTR) \ @@ -746,10 +473,6 @@ int switch_table_difference_label_flag; { fprintf ((FILE), "cmp"); (PTR) += 3; \ if ((PTR)[0] == 'a' || (PTR)[0] == 'i' \ || (PTR)[0] == 'm') (PTR)++; } \ -/* JMP to switch label */ \ - else if (!strncmp((PTR), (SWITCH_JUMP_MATCH), sizeof(SWITCH_JUMP_MATCH) - 1)) \ - { while (*(PTR)++ != '('); \ - fprintf ((FILE), "jmp 8("); } \ } /* phdm@info.ucl.ac.be says to pass SIZE, not ROUNDED. */ @@ -832,12 +555,48 @@ do { fprintf (asm_out_file, "\ttag\t"); sprintf ((BUFFER), "~%dfake", (NUMBER)); /* Define subroutines to call to handle multiply, divide, and remainder. - Use the subroutines that the 3b1's library provides. + Use the subroutines that the sysV68's library provides. The `*' prevents an underscore from being prepended by the compiler. */ +/* The '*' is also used by INIT_CUMULATIVE_ARGS */ + +#define DIVSI3_LIBCALL "*ldiv%%" +#define UDIVSI3_LIBCALL "*uldiv%%" +#define MODSI3_LIBCALL "*lrem%%" +#define UMODSI3_LIBCALL "*ulrem%%" +#define MULSI3_LIBCALL "*lmul%%" + +struct sysV68_cumulative_args + { + int offset; + int libcall; + }; + +#undef CUMULATIVE_ARGS +#define CUMULATIVE_ARGS struct sysV68_cumulative_args + +#undef INIT_CUMULATIVE_ARGS +#define INIT_CUMULATIVE_ARGS(CUM,FNTYPE,LIBNAME) \ +do {(CUM).offset = 0;\ +(CUM).libcall = (LIBNAME) && (*XSTR((LIBNAME), 0) == '*');} while(0) + +#undef FUNCTION_ARG_ADVANCE +#define FUNCTION_ARG_ADVANCE(CUM, MODE, TYPE, NAMED) \ + ((CUM).offset += ((MODE) != BLKmode \ + ? (GET_MODE_SIZE (MODE) + 3) & ~3 \ + : (int_size_in_bytes (TYPE) + 3) & ~3)) + +#undef FUNCTION_ARG +#define FUNCTION_ARG(CUM, MODE, TYPE, NAMED) \ +(((CUM).libcall && (CUM).offset == 0) ? gen_rtx(REG, (MODE), 0)\ +: (TARGET_REGPARM && (CUM).offset < 8) ? gen_rtx (REG, (MODE), (CUM).offset / 4) : 0) + +#undef FUNCTION_ARG_PARTIAL_NREGS +#define FUNCTION_ARG_PARTIAL_NREGS(CUM, MODE, TYPE, NAMED) \ +((TARGET_REGPARM && (CUM).offset < 8 \ + && 8 < ((CUM).offset + ((MODE) == BLKmode \ + ? int_size_in_bytes (TYPE) \ + : GET_MODE_SIZE (MODE)))) \ + ? 2 - (CUM).offset / 4 : 0) -#define DIVSI3_LIBCALL "*ldiv" -#define UDIVSI3_LIBCALL "*uldiv" -#define MODSI3_LIBCALL "*lrem" -#define UMODSI3_LIBCALL "*ulrem" -#define MULSI3_LIBCALL "*lmul" -#define UMULSI3_LIBCALL "*ulmul" +#undef FUNCTION_ARG_REGNO_P +#define FUNCTION_ARG_REGNO_P(N) (TARGET_68020 ? 0 : (N) == 0)