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1.1 ! root 1: /* Definitions of target machine for GNU compiler. ! 2: Motorola m88100 in an 88open OCS/BCS environment. ! 3: Copyright (C) 1988, 1989, 1990, 1991 Free Software Foundation, Inc. ! 4: Contributed by Michael Tiemann ([email protected]) ! 5: Enhanced by Michael Meissner ([email protected]) ! 6: Version 2 port by Tom Wood ([email protected]) ! 7: ! 8: This file is part of GNU CC. ! 9: ! 10: GNU CC is free software; you can redistribute it and/or modify ! 11: it under the terms of the GNU General Public License as published by ! 12: the Free Software Foundation; either version 2, or (at your option) ! 13: any later version. ! 14: ! 15: GNU CC is distributed in the hope that it will be useful, ! 16: but WITHOUT ANY WARRANTY; without even the implied warranty of ! 17: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ! 18: GNU General Public License for more details. ! 19: ! 20: You should have received a copy of the GNU General Public License ! 21: along with GNU CC; see the file COPYING. If not, write to ! 22: the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ ! 23: ! 24: /* The m88100 port of GNU CC adheres to the various standards from 88open. ! 25: These documents are available by writing: ! 26: ! 27: 88open Consortium Ltd. ! 28: 100 Homeland Court, Suite 800 ! 29: San Jose, CA 95112 ! 30: (408) 436-6600 ! 31: ! 32: In brief, the current standards are: ! 33: ! 34: Binary Compatibility Standard, Release 1.1A, May 1991 ! 35: This provides for portability of application-level software at the ! 36: executable level for AT&T System V Release 3.2. ! 37: ! 38: Object Compatibility Standard, Release 1.1A, May 1991 ! 39: This provides for portability of application-level software at the ! 40: object file and library level for C, Fortran, and Cobol, and again, ! 41: largely for SVR3. ! 42: ! 43: Under development are standards for AT&T System V Release 4, based on the ! 44: [generic] System V Application Binary Interface from AT&T. These include: ! 45: ! 46: System V Application Binary Interface, Motorola 88000 Processor Supplement ! 47: Another document from AT&T for SVR4 specific to the m88100. ! 48: Available from Prentice Hall. ! 49: ! 50: System V Application Binary Interface, Motorola 88000 Processor Supplement, ! 51: Release 1.1, Draft H, May 6, 1991 ! 52: A proposed update to the AT&T document from 88open. ! 53: ! 54: System V ABI Implementation Guide for the M88000 Processor, ! 55: Release 1.0, January 1991 ! 56: A companion ABI document from 88open. */ ! 57: ! 58: /* Other m88k*.h files include this one and override certain items. ! 59: At present, these are m88kv3.h, m88kv4.h, m88kdgux.h, and m88kluna.h. ! 60: Additionally, m88kv4.h and m88kdgux.h include svr4.h first. All other ! 61: m88k targets except m88kluna.h are based on svr3.h. */ ! 62: ! 63: /* Choose SVR3 as the default. */ ! 64: #if !defined(DBX_DEBUGGING_INFO) && !defined(DWARF_DEBUGGING_INFO) ! 65: #include "svr3.h" ! 66: #endif ! 67: ! 68: /* External types used. */ ! 69: ! 70: /* What instructions are needed to manufacture an integer constant. */ ! 71: enum m88k_instruction { ! 72: m88k_zero, ! 73: m88k_or, ! 74: m88k_subu, ! 75: m88k_or_lo16, ! 76: m88k_or_lo8, ! 77: m88k_set, ! 78: m88k_oru_hi16, ! 79: m88k_oru_or ! 80: }; ! 81: ! 82: /* External variables/functions defined in m88k.c. */ ! 83: ! 84: extern char *m88k_pound_sign; ! 85: extern char *m88k_short_data; ! 86: extern char *m88k_version; ! 87: extern char m88k_volatile_code; ! 88: ! 89: extern int m88k_gp_threshold; ! 90: extern int m88k_prologue_done; ! 91: extern int m88k_function_number; ! 92: extern int m88k_fp_offset; ! 93: extern int m88k_stack_size; ! 94: extern int m88k_case_index; ! 95: extern int m88k_version_0300; ! 96: ! 97: extern struct rtx_def *m88k_compare_reg; ! 98: extern struct rtx_def *m88k_compare_op0; ! 99: extern struct rtx_def *m88k_compare_op1; ! 100: ! 101: extern enum attr_cpu m88k_cpu; ! 102: ! 103: extern int null_prologue (); ! 104: extern int integer_ok_for_set (); ! 105: extern int m88k_debugger_offset (); ! 106: ! 107: extern void emit_bcnd (); ! 108: extern void expand_block_move (); ! 109: extern void m88k_layout_frame (); ! 110: extern void m88k_expand_prologue (); ! 111: extern void m88k_begin_prologue (); ! 112: extern void m88k_end_prologue (); ! 113: extern void m88k_expand_epilogue (); ! 114: extern void m88k_begin_epilogue (); ! 115: extern void m88k_end_epilogue (); ! 116: extern void output_function_profiler (); ! 117: extern void output_function_block_profiler (); ! 118: extern void output_block_profiler (); ! 119: extern void output_file_start (); ! 120: extern void output_ascii (); ! 121: extern void output_label (); ! 122: extern void print_operand (); ! 123: extern void print_operand_address (); ! 124: ! 125: extern char *output_load_const_int (); ! 126: extern char *output_load_const_float (); ! 127: extern char *output_load_const_double (); ! 128: extern char *output_load_const_dimode (); ! 129: extern char *output_and (); ! 130: extern char *output_ior (); ! 131: extern char *output_xor (); ! 132: extern char *output_call (); ! 133: ! 134: extern struct rtx_def *emit_test (); ! 135: extern struct rtx_def *legitimize_address (); ! 136: extern struct rtx_def *legitimize_operand (); ! 137: extern struct rtx_def *m88k_function_arg (); ! 138: extern struct rtx_def *m88k_builtin_saveregs (); ! 139: ! 140: extern enum m88k_instruction classify_integer (); ! 141: ! 142: /* external variables defined elsewhere in the compiler */ ! 143: ! 144: extern int target_flags; /* -m compiler switches */ ! 145: extern int frame_pointer_needed; /* current function has a FP */ ! 146: extern int current_function_pretend_args_size; /* args size without ... */ ! 147: extern int flag_delayed_branch; /* -fdelayed-branch */ ! 148: extern int flag_pic; /* -fpic */ ! 149: extern char * reg_names[]; ! 150: ! 151: /* Specify the default monitors. The meaning of these values can ! 152: be obtained by doing "grep MONITOR_GCC *m88k*". Generally, the ! 153: values downward from 0x8000 are tests that will soon go away. ! 154: values upward from 0x1 are generally useful tests that will remain. */ ! 155: ! 156: #ifndef MONITOR_GCC ! 157: #define MONITOR_GCC 0 ! 158: #endif ! 159: ! 160: /*** Controlling the Compilation Driver, `gcc' ***/ ! 161: ! 162: /* Some machines may desire to change what optimizations are performed for ! 163: various optimization levels. This macro, if defined, is executed once ! 164: just after the optimization level is determined and before the remainder ! 165: of the command options have been parsed. Values set in this macro are ! 166: used as the default values for the other command line options. ! 167: ! 168: LEVEL is the optimization level specified; 2 if -O2 is specified, ! 169: 1 if -O is specified, and 0 if neither is specified. */ ! 170: ! 171: /* This macro used to store 0 in flag_signed_bitfields. ! 172: Not only is that misuse of this macro; the whole idea is wrong. ! 173: ! 174: The GNU C dialect makes bitfields signed by default, ! 175: regardless of machine type. Making any machine inconsistent in this ! 176: regard is bad for portability. ! 177: ! 178: I chose to make bitfields signed by default because this is consistent ! 179: with the way ordinary variables are handled: `int' equals `signed int'. ! 180: If there is a good reason to prefer making bitfields unsigned by default, ! 181: it cannot have anything to do with the choice of machine. ! 182: If the reason is good enough, we should change the convention for all machines. ! 183: ! 184: -- rms, 20 July 1991. */ ! 185: ! 186: #define OPTIMIZATION_OPTIONS(LEVEL) \ ! 187: do { \ ! 188: if (LEVEL) \ ! 189: { \ ! 190: flag_omit_frame_pointer = 1; \ ! 191: } \ ! 192: } while (0) ! 193: ! 194: /* If -m88100 is in effect, add -D__m88100__; similarly for -m88110. ! 195: Here, the CPU_DEFAULT is assumed to be -m88100. */ ! 196: #undef CPP_SPEC ! 197: #define CPP_SPEC "%{!m88000:%{!m88100:%{m88110:-D__m88110__}}} \ ! 198: %{!m88000:%{!m88110:-D__m88100__}}" ! 199: ! 200: /* LIB_SPEC, LINK_SPEC, and STARTFILE_SPEC defined in svr3.h. ! 201: ASM_SPEC, ASM_FINAL_SPEC, LIB_SPEC, LINK_SPEC, and STARTFILE_SPEC redefined ! 202: in svr4.h. ! 203: CPP_SPEC, ASM_SPEC, ASM_FINAL_SPEC, LIB_SPEC, LINK_SPEC, and ! 204: STARTFILE_SPEC redefined in m88kdgux.h. */ ! 205: ! 206: /*** Run-time Target Specification ***/ ! 207: ! 208: /* Names to predefine in the preprocessor for this target machine. ! 209: Redefined in m88kv3.h, m88kv4.h, m88kdgux.h, and m88kluna.h. */ ! 210: #define CPP_PREDEFINES "-Dm88000 -Dm88k -Dunix -D__CLASSIFY_TYPE__=2" ! 211: ! 212: #define TARGET_VERSION fprintf (stderr, " (%s%s)", \ ! 213: VERSION_INFO1, VERSION_INFO2) ! 214: ! 215: /* Print subsidiary information on the compiler version in use. ! 216: Redefined in m88kv4.h, and m88kluna.h. */ ! 217: #define VERSION_INFO1 "88open OCS/BCS, " ! 218: #define VERSION_INFO2 "12/16/92" ! 219: #define VERSION_STRING version_string ! 220: #define TM_SCCS_ID "@(#)m88k.h 2.3.3.2 12/16/92 08:26:09" ! 221: ! 222: /* Run-time compilation parameters selecting different hardware subsets. */ ! 223: ! 224: /* Macro to define tables used to set the flags. ! 225: This is a list in braces of pairs in braces, ! 226: each pair being { "NAME", VALUE } ! 227: where VALUE is the bits to set or minus the bits to clear. ! 228: An empty string NAME is used to identify the default VALUE. */ ! 229: ! 230: #define MASK_88100 0x00000001 /* Target m88100 */ ! 231: #define MASK_88110 0x00000002 /* Target m88110 */ ! 232: #define MASK_OCS_DEBUG_INFO 0x00000004 /* Emit .tdesc info */ ! 233: #define MASK_OCS_FRAME_POSITION 0x00000008 /* Debug frame = CFA, not r30 */ ! 234: #define MASK_SVR4 0x00000010 /* Target is AT&T System V.4 */ ! 235: #define MASK_NO_UNDERSCORES 0x00000040 /* Don't emit a leading `_' */ ! 236: #define MASK_BIG_PIC 0x00000080 /* PIC with large got-rel's -fPIC */ ! 237: #define MASK_TRAP_LARGE_SHIFT 0x00000100 /* Trap if shift not <= 31 */ ! 238: #define MASK_HANDLE_LARGE_SHIFT 0x00000200 /* Handle shift count >= 32 */ ! 239: #define MASK_CHECK_ZERO_DIV 0x00000400 /* Check for int div. by 0 */ ! 240: #define MASK_USE_DIV 0x00000800 /* No signed div. checks */ ! 241: #define MASK_IDENTIFY_REVISION 0x00001000 /* Emit ident, with GCC rev */ ! 242: #define MASK_WARN_PASS_STRUCT 0x00002000 /* Warn about passed structs */ ! 243: #define MASK_OPTIMIZE_ARG_AREA 0x00004000 /* Save stack space */ ! 244: #define MASK_SERIALIZE_VOLATILE 0x00008000 /* Serialize volatile refs */ ! 245: #define MASK_NO_SERIALIZE_VOLATILE 0x00010000 /* Don't serialize */ ! 246: ! 247: #define MASK_88000 (MASK_88100 | MASK_88110) ! 248: #define MASK_EITHER_LARGE_SHIFT (MASK_TRAP_LARGE_SHIFT | \ ! 249: MASK_HANDLE_LARGE_SHIFT) ! 250: #define MASK_SERIALIZE (MASK_SERIALIZE_VOLATILE | MASK_NO_SERIALIZE_VOLATILE) ! 251: ! 252: #define TARGET_88100 ((target_flags & MASK_88000) == MASK_88100) ! 253: #define TARGET_88110 ((target_flags & MASK_88000) == MASK_88110) ! 254: #define TARGET_88000 ((target_flags & MASK_88000) == MASK_88000) ! 255: ! 256: #define TARGET_OCS_DEBUG_INFO (target_flags & MASK_OCS_DEBUG_INFO) ! 257: #define TARGET_OCS_FRAME_POSITION (target_flags & MASK_OCS_FRAME_POSITION) ! 258: #define TARGET_SVR4 (target_flags & MASK_SVR4) ! 259: #define TARGET_NO_UNDERSCORES (target_flags & MASK_NO_UNDERSCORES) ! 260: #define TARGET_BIG_PIC (target_flags & MASK_BIG_PIC) ! 261: #define TARGET_TRAP_LARGE_SHIFT (target_flags & MASK_TRAP_LARGE_SHIFT) ! 262: #define TARGET_HANDLE_LARGE_SHIFT (target_flags & MASK_HANDLE_LARGE_SHIFT) ! 263: #define TARGET_CHECK_ZERO_DIV (target_flags & MASK_CHECK_ZERO_DIV) ! 264: #define TARGET_USE_DIV (target_flags & MASK_USE_DIV) ! 265: #define TARGET_IDENTIFY_REVISION (target_flags & MASK_IDENTIFY_REVISION) ! 266: #define TARGET_WARN_PASS_STRUCT (target_flags & MASK_WARN_PASS_STRUCT) ! 267: #define TARGET_OPTIMIZE_ARG_AREA (target_flags & MASK_OPTIMIZE_ARG_AREA) ! 268: #define TARGET_SERIALIZE_VOLATILE (target_flags & MASK_SERIALIZE_VOLATILE) ! 269: ! 270: #define TARGET_EITHER_LARGE_SHIFT (target_flags & MASK_EITHER_LARGE_SHIFT) ! 271: ! 272: /* Redefined in m88kv3.h,m88kv4.h, and m88kdgux.h. */ ! 273: #define TARGET_DEFAULT (MASK_CHECK_ZERO_DIV) ! 274: #define CPU_DEFAULT MASK_88100 ! 275: ! 276: #define TARGET_SWITCHES \ ! 277: { \ ! 278: { "88110", MASK_88110 }, \ ! 279: { "88100", MASK_88100 }, \ ! 280: { "88000", MASK_88000 }, \ ! 281: { "ocs-debug-info", MASK_OCS_DEBUG_INFO }, \ ! 282: { "no-ocs-debug-info", -MASK_OCS_DEBUG_INFO }, \ ! 283: { "ocs-frame-position", MASK_OCS_FRAME_POSITION }, \ ! 284: { "no-ocs-frame-position", -MASK_OCS_FRAME_POSITION }, \ ! 285: { "svr4", MASK_SVR4 }, \ ! 286: { "svr3", -MASK_SVR4 }, \ ! 287: { "no-underscores", MASK_NO_UNDERSCORES }, \ ! 288: { "big-pic", MASK_BIG_PIC }, \ ! 289: { "trap-large-shift", MASK_TRAP_LARGE_SHIFT }, \ ! 290: { "handle-large-shift", MASK_HANDLE_LARGE_SHIFT }, \ ! 291: { "check-zero-division", MASK_CHECK_ZERO_DIV }, \ ! 292: { "no-check-zero-division", -MASK_CHECK_ZERO_DIV }, \ ! 293: { "use-div-instruction", MASK_USE_DIV }, \ ! 294: { "identify-revision", MASK_IDENTIFY_REVISION }, \ ! 295: { "warn-passed-structs", MASK_WARN_PASS_STRUCT }, \ ! 296: { "optimize-arg-area", MASK_OPTIMIZE_ARG_AREA }, \ ! 297: { "no-optimize-arg-area", -MASK_OPTIMIZE_ARG_AREA }, \ ! 298: { "serialize-volatile", MASK_SERIALIZE_VOLATILE }, \ ! 299: { "no-serialize-volatile", MASK_NO_SERIALIZE_VOLATILE }, \ ! 300: SUBTARGET_SWITCHES \ ! 301: /* Default switches */ \ ! 302: { "", TARGET_DEFAULT }, \ ! 303: } ! 304: ! 305: /* Redefined in m88kdgux.h. */ ! 306: #define SUBTARGET_SWITCHES ! 307: ! 308: /* Macro to define table for command options with values. */ ! 309: ! 310: #define TARGET_OPTIONS { { "short-data-", &m88k_short_data }, \ ! 311: { "version-", &m88k_version } } ! 312: ! 313: /* Do any checking or such that is needed after processing the -m switches. */ ! 314: ! 315: #define OVERRIDE_OPTIONS \ ! 316: do { \ ! 317: register int i; \ ! 318: \ ! 319: if ((target_flags & MASK_88000) == 0) \ ! 320: target_flags |= CPU_DEFAULT; \ ! 321: \ ! 322: m88k_cpu = (TARGET_88000 ? CPU_M88000 \ ! 323: : (TARGET_88100 ? CPU_M88100 : CPU_M88110)); \ ! 324: \ ! 325: if (! TARGET_88100 && (target_flags & MASK_SERIALIZE) == 0) \ ! 326: target_flags |= MASK_SERIALIZE_VOLATILE; \ ! 327: \ ! 328: if ((target_flags & MASK_NO_SERIALIZE_VOLATILE) != 0) \ ! 329: target_flags &= ~MASK_SERIALIZE_VOLATILE; \ ! 330: \ ! 331: if (TARGET_BIG_PIC) \ ! 332: flag_pic = 2; \ ! 333: \ ! 334: if ((target_flags & MASK_EITHER_LARGE_SHIFT) == MASK_EITHER_LARGE_SHIFT) \ ! 335: error ("-mtrap-large-shift and -mhandle-large-shift are incompatible");\ ! 336: \ ! 337: m88k_version_0300 = (m88k_version != 0 \ ! 338: && strcmp (m88k_version, "03.00") >= 0); \ ! 339: \ ! 340: if (VERSION_0300_SYNTAX) \ ! 341: { \ ! 342: for (i = 0; i < FIRST_PSEUDO_REGISTER; i++) \ ! 343: reg_names[i]--; \ ! 344: m88k_pound_sign = "#"; \ ! 345: if (m88k_version == 0) \ ! 346: m88k_version = VERSION_0400_SYNTAX ? "04.00" : "03.00"; \ ! 347: else if (strcmp (m88k_version, "03.00") < 0) \ ! 348: error ("Specified assembler version (%s) is less that 03.00", \ ! 349: m88k_version); \ ! 350: } \ ! 351: \ ! 352: m88k_version_0300 = (m88k_version != 0 \ ! 353: && strcmp (m88k_version, "03.00") >= 0); \ ! 354: \ ! 355: if (m88k_short_data) \ ! 356: { \ ! 357: char *p = m88k_short_data; \ ! 358: while (*p) \ ! 359: if (*p >= '0' && *p <= '9') \ ! 360: p++; \ ! 361: else \ ! 362: { \ ! 363: error ("Invalid option `-mshort-data-%s'", m88k_short_data); \ ! 364: break; \ ! 365: } \ ! 366: m88k_gp_threshold = atoi (m88k_short_data); \ ! 367: if (flag_pic) \ ! 368: error ("-mshort-data-%s and PIC are incompatible", m88k_short_data); \ ! 369: } \ ! 370: } while (0) ! 371: ! 372: /*** Storage Layout ***/ ! 373: ! 374: /* Sizes in bits of the various types. */ ! 375: #define CHAR_TYPE_SIZE 8 ! 376: #define SHORT_TYPE_SIZE 16 ! 377: #define INT_TYPE_SIZE 32 ! 378: #define LONG_TYPE_SIZE 32 ! 379: #define LONG_LONG_TYPE_SIZE 64 ! 380: #define FLOAT_TYPE_SIZE 32 ! 381: #define DOUBLE_TYPE_SIZE 64 ! 382: #define LONG_DOUBLE_TYPE_SIZE 64 ! 383: ! 384: /* Define this if most significant bit is lowest numbered ! 385: in instructions that operate on numbered bit-fields. ! 386: Somewhat arbitrary. It matches the bit field patterns. */ ! 387: #define BITS_BIG_ENDIAN 1 ! 388: ! 389: /* Define this if most significant byte of a word is the lowest numbered. ! 390: That is true on the m88000. */ ! 391: #define BYTES_BIG_ENDIAN 1 ! 392: ! 393: /* Define this if most significant word of a multiword number is the lowest ! 394: numbered. ! 395: For the m88000 we can decide arbitrarily since there are no machine ! 396: instructions for them. */ ! 397: #define WORDS_BIG_ENDIAN 1 ! 398: ! 399: /* Number of bits in an addressable storage unit */ ! 400: #define BITS_PER_UNIT 8 ! 401: ! 402: /* Width in bits of a "word", which is the contents of a machine register. ! 403: Note that this is not necessarily the width of data type `int'; ! 404: if using 16-bit ints on a 68000, this would still be 32. ! 405: But on a machine with 16-bit registers, this would be 16. */ ! 406: #define BITS_PER_WORD 32 ! 407: ! 408: /* Width of a word, in units (bytes). */ ! 409: #define UNITS_PER_WORD 4 ! 410: ! 411: /* Width in bits of a pointer. ! 412: See also the macro `Pmode' defined below. */ ! 413: #define POINTER_SIZE 32 ! 414: ! 415: /* Allocation boundary (in *bits*) for storing arguments in argument list. */ ! 416: #define PARM_BOUNDARY 32 ! 417: ! 418: /* Largest alignment for stack parameters (if greater than PARM_BOUNDARY). */ ! 419: #define MAX_PARM_BOUNDARY 64 ! 420: ! 421: /* Boundary (in *bits*) on which stack pointer should be aligned. */ ! 422: #define STACK_BOUNDARY 128 ! 423: ! 424: /* Allocation boundary (in *bits*) for the code of a function. On the ! 425: m88100, it is desirable to align to a cache line. However, SVR3 targets ! 426: only provided 8 byte alignment. The m88110 cache is small, so align ! 427: to an 8 byte boundary. Pack code tightly when compiling crtstuff.c. */ ! 428: #define FUNCTION_BOUNDARY (flag_inhibit_size_directive ? 32 : \ ! 429: (TARGET_88100 && TARGET_SVR4 ? 128 : 64)) ! 430: ! 431: /* No data type wants to be aligned rounder than this. */ ! 432: #define BIGGEST_ALIGNMENT 64 ! 433: ! 434: /* The best alignment to use in cases where we have a choice. */ ! 435: #define FASTEST_ALIGNMENT (TARGET_88100 ? 32 : 64) ! 436: ! 437: /* Make strings 4/8 byte aligned so strcpy from constants will be faster. */ ! 438: #define CONSTANT_ALIGNMENT(EXP, ALIGN) \ ! 439: ((TREE_CODE (EXP) == STRING_CST \ ! 440: && (ALIGN) < FASTEST_ALIGNMENT) \ ! 441: ? FASTEST_ALIGNMENT : (ALIGN)) ! 442: ! 443: /* Make arrays of chars 4/8 byte aligned for the same reasons. */ ! 444: #define DATA_ALIGNMENT(TYPE, ALIGN) \ ! 445: (TREE_CODE (TYPE) == ARRAY_TYPE \ ! 446: && TYPE_MODE (TREE_TYPE (TYPE)) == QImode \ ! 447: && (ALIGN) < FASTEST_ALIGNMENT ? FASTEST_ALIGNMENT : (ALIGN)) ! 448: ! 449: /* Alignment of field after `int : 0' in a structure. ! 450: Ignored with PCC_BITFIELD_TYPE_MATTERS. */ ! 451: /* #define EMPTY_FIELD_BOUNDARY 8 */ ! 452: ! 453: /* Every structure's size must be a multiple of this. */ ! 454: #define STRUCTURE_SIZE_BOUNDARY 8 ! 455: ! 456: /* Set this nonzero if move instructions will actually fail to work ! 457: when given unaligned data. */ ! 458: #define STRICT_ALIGNMENT 1 ! 459: ! 460: /* A bitfield declared as `int' forces `int' alignment for the struct. */ ! 461: #define PCC_BITFIELD_TYPE_MATTERS 1 ! 462: ! 463: /* Maximum size (in bits) to use for the largest integral type that ! 464: replaces a BLKmode type. */ ! 465: /* #define MAX_FIXED_MODE_SIZE 0 */ ! 466: ! 467: /* Check a `double' value for validity for a particular machine mode. ! 468: This is defined to avoid crashes outputting certain constants. ! 469: Since we output the number in hex, the assembler won't choke on it. */ ! 470: /* #define CHECK_FLOAT_VALUE(MODE,VALUE) */ ! 471: ! 472: /* A code distinguishing the floating point format of the target machine. */ ! 473: /* #define TARGET_FLOAT_FORMAT IEEE_FLOAT_FORMAT */ ! 474: ! 475: /*** Register Usage ***/ ! 476: ! 477: /* Number of actual hardware registers. ! 478: The hardware registers are assigned numbers for the compiler ! 479: from 0 to just below FIRST_PSEUDO_REGISTER. ! 480: All registers that the compiler knows about must be given numbers, ! 481: even those that are not normally considered general registers. ! 482: ! 483: The m88100 has a General Register File (GRF) of 32 32-bit registers. ! 484: The m88110 adds an Extended Register File (XRF) of 32 80-bit registers. */ ! 485: #define FIRST_PSEUDO_REGISTER 64 ! 486: #define FIRST_EXTENDED_REGISTER 32 ! 487: ! 488: /* General notes on extended registers, their use and misuse. ! 489: ! 490: Possible good uses: ! 491: ! 492: spill area instead of memory. ! 493: -waste if only used once ! 494: ! 495: floating point calculations ! 496: -probably a waste unless we have run out of general purpose registers ! 497: ! 498: freeing up general purpose registers ! 499: -e.g. may be able to have more loop invariants if floating ! 500: point is moved into extended registers. ! 501: ! 502: ! 503: I've noticed wasteful moves into and out of extended registers; e.g. a load ! 504: into x21, then inside a loop a move into r24, then r24 used as input to ! 505: an fadd. Why not just load into r24 to begin with? Maybe the new cse.c ! 506: will address this. This wastes a move, but the load,store and move could ! 507: have been saved had extended registers been used throughout. ! 508: E.g. in the code following code, if z and xz are placed in extended ! 509: registers, there is no need to save preserve registers. ! 510: ! 511: long c=1,d=1,e=1,f=1,g=1,h=1,i=1,j=1,k; ! 512: ! 513: double z=0,xz=4.5; ! 514: ! 515: foo(a,b) ! 516: long a,b; ! 517: { ! 518: while (a < b) ! 519: { ! 520: k = b + c + d + e + f + g + h + a + i + j++; ! 521: z += xz; ! 522: a++; ! 523: } ! 524: printf("k= %d; z=%f;\n", k, z); ! 525: } ! 526: ! 527: I've found that it is possible to change the constraints (putting * before ! 528: the 'r' constraints int the fadd.ddd instruction) and get the entire ! 529: addition and store to go into extended registers. However, this also ! 530: forces simple addition and return of floating point arguments to a ! 531: function into extended registers. Not the correct solution. ! 532: ! 533: Found the following note in local-alloc.c which may explain why I can't ! 534: get both registers to be in extended registers since two are allocated in ! 535: local-alloc and one in global-alloc. Doesn't explain (I don't believe) ! 536: why an extended register is used instead of just using the preserve ! 537: register. ! 538: ! 539: from local-alloc.c: ! 540: We have provision to exempt registers, even when they are contained ! 541: within the block, that can be tied to others that are not contained in it. ! 542: This is so that global_alloc could process them both and tie them then. ! 543: But this is currently disabled since tying in global_alloc is not ! 544: yet implemented. ! 545: ! 546: The explanation of why the preserved register is not used is as follows, ! 547: I believe. The registers are being allocated in order. Tying is not ! 548: done so efficiently, so when it comes time to do the first allocation, ! 549: there are no registers left to use without spilling except extended ! 550: registers. Then when the next pseudo register needs a hard reg, there ! 551: are still no registers to be had for free, but this one must be a GRF ! 552: reg instead of an extended reg, so a preserve register is spilled. Thus ! 553: the move from extended to GRF is necessitated. I do not believe this can ! 554: be 'fixed' through the config/*m88k* files. ! 555: ! 556: gcc seems to sometimes make worse use of register allocation -- not counting ! 557: moves -- whenever extended registers are present. For example in the ! 558: whetstone, the simple for loop (slightly modified) ! 559: for(i = 1; i <= n1; i++) ! 560: { ! 561: x1 = (x1 + x2 + x3 - x4) * t; ! 562: x2 = (x1 + x2 - x3 + x4) * t; ! 563: x3 = (x1 - x2 + x3 + x4) * t; ! 564: x4 = (x1 + x2 + x3 + x4) * t; ! 565: } ! 566: in general loads the high bits of the addresses of x2-x4 and i into registers ! 567: outside the loop. Whenever extended registers are used, it loads all of ! 568: these inside the loop. My conjecture is that since the 88110 has so many ! 569: registers, and gcc makes no distinction at this point -- just that they are ! 570: not fixed, that in loop.c it believes it can expect a number of registers ! 571: to be available. Then it allocates 'too many' in local-alloc which causes ! 572: problems later. 'Too many' are allocated because a large portion of the ! 573: registers are extended registers and cannot be used for certain purposes ! 574: ( e.g. hold the address of a variable). When this loop is compiled on its ! 575: own, the problem does not occur. I don't know the solution yet, though it ! 576: is probably in the base sources. Possibly a different way to calculate ! 577: "threshold". */ ! 578: ! 579: /* 1 for registers that have pervasive standard uses and are not available ! 580: for the register allocator. Registers r14-r25 and x22-x29 are expected ! 581: to be preserved across function calls. ! 582: ! 583: On the 88000, the standard uses of the General Register File (GRF) are: ! 584: Reg 0 = Pseudo argument pointer (hardware fixed to 0). ! 585: Reg 1 = Subroutine return pointer (hardware). ! 586: Reg 2-9 = Parameter registers (OCS). ! 587: Reg 10 = OCS reserved temporary. ! 588: Reg 11 = Static link if needed [OCS reserved temporary]. ! 589: Reg 12 = Address of structure return (OCS). ! 590: Reg 13 = OCS reserved temporary. ! 591: Reg 14-25 = Preserved register set. ! 592: Reg 26-29 = Reserved by OCS and ABI. ! 593: Reg 30 = Frame pointer (Common use). ! 594: Reg 31 = Stack pointer. ! 595: ! 596: The following follows the current 88open UCS specification for the ! 597: Extended Register File (XRF): ! 598: Reg 32 = x0 Always equal to zero ! 599: Reg 33-53 = x1-x21 Temporary registers (Caller Save) ! 600: Reg 54-61 = x22-x29 Preserver registers (Callee Save) ! 601: Reg 62-63 = x30-x31 Reserved for future ABI use. ! 602: ! 603: Note: The current 88110 extended register mapping is subject to change. ! 604: The bias towards caller-save registers is based on the ! 605: presumption that memory traffic can potentially be reduced by ! 606: allowing the "caller" to save only that part of the register ! 607: which is actually being used. (i.e. don't do a st.x if a st.d ! 608: is sufficient). Also, in scientific code (a.k.a. Fortran), the ! 609: large number of variables defined in common blocks may require ! 610: that almost all registers be saved across calls anyway. */ ! 611: ! 612: #define FIXED_REGISTERS \ ! 613: {1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, \ ! 614: 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, \ ! 615: 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, \ ! 616: 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1} ! 617: ! 618: /* 1 for registers not available across function calls. ! 619: These must include the FIXED_REGISTERS and also any ! 620: registers that can be used without being saved. ! 621: The latter must include the registers where values are returned ! 622: and the register where structure-value addresses are passed. ! 623: Aside from that, you can include as many other registers as you like. */ ! 624: ! 625: #define CALL_USED_REGISTERS \ ! 626: {1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, \ ! 627: 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, \ ! 628: 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, \ ! 629: 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1} ! 630: ! 631: /* Macro to conditionally modify fixed_regs/call_used_regs. */ ! 632: #define CONDITIONAL_REGISTER_USAGE \ ! 633: { \ ! 634: if (! TARGET_88110) \ ! 635: { \ ! 636: register int i; \ ! 637: for (i = FIRST_EXTENDED_REGISTER; i < FIRST_PSEUDO_REGISTER; i++) \ ! 638: { \ ! 639: fixed_regs[i] = 1; \ ! 640: call_used_regs[i] = 1; \ ! 641: } \ ! 642: } \ ! 643: if (flag_pic) \ ! 644: { \ ! 645: /* Current hack to deal with -fpic -O2 problems. */ \ ! 646: fixed_regs[PIC_OFFSET_TABLE_REGNUM] = 1; \ ! 647: call_used_regs[PIC_OFFSET_TABLE_REGNUM] = 1; \ ! 648: global_regs[PIC_OFFSET_TABLE_REGNUM] = 1; \ ! 649: } \ ! 650: } ! 651: ! 652: /* These interfaces that don't apply to the m88000. */ ! 653: /* OVERLAPPING_REGNO_P(REGNO) 0 */ ! 654: /* INSN_CLOBBERS_REGNO_P(INSN, REGNO) 0 */ ! 655: /* PRESERVE_DEATH_INFO_REGNO_P(REGNO) 0 */ ! 656: ! 657: /* True if register is an extended register. */ ! 658: #define XRF_REGNO_P(N) ((N) < FIRST_PSEUDO_REGISTER && (N) >= FIRST_EXTENDED_REGISTER) ! 659: ! 660: /* Return number of consecutive hard regs needed starting at reg REGNO ! 661: to hold something of mode MODE. ! 662: This is ordinarily the length in words of a value of mode MODE ! 663: but can be less for certain modes in special long registers. ! 664: ! 665: On the m88000, GRF registers hold 32-bits and XRF registers hold 80-bits. ! 666: An XRF register can hold any mode, but two GRF registers are required ! 667: for larger modes. */ ! 668: #define HARD_REGNO_NREGS(REGNO, MODE) \ ! 669: (XRF_REGNO_P (REGNO) \ ! 670: ? 1 : ((GET_MODE_SIZE (MODE) + UNITS_PER_WORD - 1) / UNITS_PER_WORD)) ! 671: ! 672: /* Value is 1 if hard register REGNO can hold a value of machine-mode MODE. ! 673: ! 674: For double integers, we never put the value into an odd register so that ! 675: the operators don't run into the situation where the high part of one of ! 676: the inputs is the low part of the result register. (It's ok if the output ! 677: registers are the same as the input registers.) The XRF registers can ! 678: hold all modes, but only DF and SF modes can be manipulated in these ! 679: registers. The compiler should be allowed to use these as a fast spill ! 680: area. */ ! 681: #define HARD_REGNO_MODE_OK(REGNO, MODE) \ ! 682: (XRF_REGNO_P(REGNO) \ ! 683: ? (TARGET_88110 && GET_MODE_CLASS (MODE) == MODE_FLOAT) \ ! 684: : (((MODE) != DImode && (MODE) != DFmode && (MODE) != DCmode) \ ! 685: || ((REGNO) & 1) == 0)) ! 686: ! 687: /* Value is 1 if it is a good idea to tie two pseudo registers ! 688: when one has mode MODE1 and one has mode MODE2. ! 689: If HARD_REGNO_MODE_OK could produce different values for MODE1 and MODE2, ! 690: for any hard reg, then this must be 0 for correct output. */ ! 691: #define MODES_TIEABLE_P(MODE1, MODE2) \ ! 692: (((MODE1) == DFmode || (MODE1) == DCmode || (MODE1) == DImode \ ! 693: || (TARGET_88110 && GET_MODE_CLASS (MODE1) == MODE_FLOAT)) \ ! 694: == ((MODE2) == DFmode || (MODE2) == DCmode || (MODE2) == DImode \ ! 695: || (TARGET_88110 && GET_MODE_CLASS (MODE2) == MODE_FLOAT))) ! 696: ! 697: /* Specify the registers used for certain standard purposes. ! 698: The values of these macros are register numbers. */ ! 699: ! 700: /* the m88000 pc isn't overloaded on a register that the compiler knows about. */ ! 701: /* #define PC_REGNUM */ ! 702: ! 703: /* Register to use for pushing function arguments. */ ! 704: #define STACK_POINTER_REGNUM 31 ! 705: ! 706: /* Base register for access to local variables of the function. */ ! 707: #define FRAME_POINTER_REGNUM 30 ! 708: ! 709: /* Base register for access to arguments of the function. */ ! 710: #define ARG_POINTER_REGNUM 0 ! 711: ! 712: /* Register used in cases where a temporary is known to be safe to use. */ ! 713: #define TEMP_REGNUM 10 ! 714: ! 715: /* Register in which static-chain is passed to a function. */ ! 716: #define STATIC_CHAIN_REGNUM 11 ! 717: ! 718: /* Register in which address to store a structure value ! 719: is passed to a function. */ ! 720: #define STRUCT_VALUE_REGNUM 12 ! 721: ! 722: /* Register to hold the addressing base for position independent ! 723: code access to data items. */ ! 724: #define PIC_OFFSET_TABLE_REGNUM 25 ! 725: ! 726: /* Order in which registers are preferred (most to least). Use temp ! 727: registers, then param registers top down. Preserve registers are ! 728: top down to maximize use of double memory ops for register save. ! 729: The 88open reserved registers (r26-r29 and x30-x31) may commonly be used ! 730: in most environments with the -fcall-used- or -fcall-saved- options. */ ! 731: #define REG_ALLOC_ORDER \ ! 732: { \ ! 733: 13, 12, 11, 10, 29, 28, 27, 26, \ ! 734: 62, 63, 9, 8, 7, 6, 5, 4, \ ! 735: 3, 2, 1, 53, 52, 51, 50, 49, \ ! 736: 48, 47, 46, 45, 44, 43, 42, 41, \ ! 737: 40, 39, 38, 37, 36, 35, 34, 33, \ ! 738: 25, 24, 23, 22, 21, 20, 19, 18, \ ! 739: 17, 16, 15, 14, 61, 60, 59, 58, \ ! 740: 57, 56, 55, 54, 30, 31, 0, 32} ! 741: ! 742: /* Order for leaf functions. */ ! 743: #define REG_LEAF_ALLOC_ORDER \ ! 744: { \ ! 745: 9, 8, 7, 6, 13, 12, 11, 10, \ ! 746: 29, 28, 27, 26, 62, 63, 5, 4, \ ! 747: 3, 2, 0, 53, 52, 51, 50, 49, \ ! 748: 48, 47, 46, 45, 44, 43, 42, 41, \ ! 749: 40, 39, 38, 37, 36, 35, 34, 33, \ ! 750: 25, 24, 23, 22, 21, 20, 19, 18, \ ! 751: 17, 16, 15, 14, 61, 60, 59, 58, \ ! 752: 57, 56, 55, 54, 30, 31, 1, 32} ! 753: ! 754: /* Switch between the leaf and non-leaf orderings. The purpose is to avoid ! 755: write-over scoreboard delays between caller and callee. */ ! 756: #define ORDER_REGS_FOR_LOCAL_ALLOC \ ! 757: { \ ! 758: static int leaf[] = REG_LEAF_ALLOC_ORDER; \ ! 759: static int nonleaf[] = REG_ALLOC_ORDER; \ ! 760: \ ! 761: bcopy (regs_ever_live[1] ? nonleaf : leaf, reg_alloc_order, \ ! 762: FIRST_PSEUDO_REGISTER * sizeof (int)); \ ! 763: } ! 764: ! 765: /*** Register Classes ***/ ! 766: ! 767: /* Define the classes of registers for register constraints in the ! 768: machine description. Also define ranges of constants. ! 769: ! 770: One of the classes must always be named ALL_REGS and include all hard regs. ! 771: If there is more than one class, another class must be named NO_REGS ! 772: and contain no registers. ! 773: ! 774: The name GENERAL_REGS must be the name of a class (or an alias for ! 775: another name such as ALL_REGS). This is the class of registers ! 776: that is allowed by "g" or "r" in a register constraint. ! 777: Also, registers outside this class are allocated only when ! 778: instructions express preferences for them. ! 779: ! 780: The classes must be numbered in nondecreasing order; that is, ! 781: a larger-numbered class must never be contained completely ! 782: in a smaller-numbered class. ! 783: ! 784: For any two classes, it is very desirable that there be another ! 785: class that represents their union. */ ! 786: ! 787: /* The m88000 hardware has two kinds of registers. In addition, we denote ! 788: the arg pointer as a separate class. */ ! 789: ! 790: enum reg_class { NO_REGS, AP_REG, XRF_REGS, GENERAL_REGS, AGRF_REGS, ! 791: XGRF_REGS, ALL_REGS, LIM_REG_CLASSES }; ! 792: ! 793: #define N_REG_CLASSES (int) LIM_REG_CLASSES ! 794: ! 795: /* Give names of register classes as strings for dump file. */ ! 796: #define REG_CLASS_NAMES {"NO_REGS", "AP_REG", "XRF_REGS", "GENERAL_REGS", \ ! 797: "AGRF_REGS", "XGRF_REGS", "ALL_REGS" } ! 798: ! 799: /* Define which registers fit in which classes. ! 800: This is an initializer for a vector of HARD_REG_SET ! 801: of length N_REG_CLASSES. */ ! 802: #define REG_CLASS_CONTENTS {{0x00000000, 0x00000000}, \ ! 803: {0x00000001, 0x00000000}, \ ! 804: {0x00000000, 0xffffffff}, \ ! 805: {0xfffffffe, 0x00000000}, \ ! 806: {0xffffffff, 0x00000000}, \ ! 807: {0xfffffffe, 0xffffffff}, \ ! 808: {0xffffffff, 0xffffffff}} ! 809: ! 810: /* The same information, inverted: ! 811: Return the class number of the smallest class containing ! 812: reg number REGNO. This could be a conditional expression ! 813: or could index an array. */ ! 814: #define REGNO_REG_CLASS(REGNO) \ ! 815: ((REGNO) ? ((REGNO < 32) ? GENERAL_REGS : XRF_REGS) : AP_REG) ! 816: ! 817: /* The class value for index registers, and the one for base regs. */ ! 818: #define BASE_REG_CLASS AGRF_REGS ! 819: #define INDEX_REG_CLASS GENERAL_REGS ! 820: ! 821: /* Get reg_class from a letter such as appears in the machine description. ! 822: For the 88000, the following class/letter is defined for the XRF: ! 823: x - Extended register file */ ! 824: #define REG_CLASS_FROM_LETTER(C) \ ! 825: (((C) == 'x') ? XRF_REGS : NO_REGS) ! 826: ! 827: /* Macros to check register numbers against specific register classes. ! 828: These assume that REGNO is a hard or pseudo reg number. ! 829: They give nonzero only if REGNO is a hard reg of the suitable class ! 830: or a pseudo reg currently allocated to a suitable hard reg. ! 831: Since they use reg_renumber, they are safe only once reg_renumber ! 832: has been allocated, which happens in local-alloc.c. */ ! 833: #define REGNO_OK_FOR_BASE_P(REGNO) \ ! 834: ((REGNO) < FIRST_EXTENDED_REGISTER \ ! 835: || (unsigned) reg_renumber[REGNO] < FIRST_EXTENDED_REGISTER) ! 836: #define REGNO_OK_FOR_INDEX_P(REGNO) \ ! 837: (((REGNO) && (REGNO) < FIRST_EXTENDED_REGISTER) \ ! 838: || (unsigned) reg_renumber[REGNO] < FIRST_EXTENDED_REGISTER) ! 839: ! 840: /* Given an rtx X being reloaded into a reg required to be ! 841: in class CLASS, return the class of reg to actually use. ! 842: In general this is just CLASS; but on some machines ! 843: in some cases it is preferable to use a more restrictive class. ! 844: Double constants should be in a register iff they can be made cheaply. */ ! 845: #define PREFERRED_RELOAD_CLASS(X,CLASS) \ ! 846: (CONSTANT_P(X) && (CLASS == XRF_REGS) ? NO_REGS : (CLASS)) ! 847: ! 848: /* Return the register class of a scratch register needed to load IN ! 849: into a register of class CLASS in MODE. On the m88k, when PIC, we ! 850: need a temporary when loading some addresses into a register. */ ! 851: #define SECONDARY_INPUT_RELOAD_CLASS(CLASS, MODE, IN) \ ! 852: ((flag_pic \ ! 853: && GET_CODE (IN) == CONST \ ! 854: && GET_CODE (XEXP (IN, 0)) == PLUS \ ! 855: && GET_CODE (XEXP (XEXP (IN, 0), 0)) == CONST_INT \ ! 856: && ! SMALL_INT (XEXP (XEXP (IN, 0), 1))) ? GENERAL_REGS : NO_REGS) ! 857: ! 858: /* Return the maximum number of consecutive registers ! 859: needed to represent mode MODE in a register of class CLASS. */ ! 860: #define CLASS_MAX_NREGS(CLASS, MODE) \ ! 861: ((((CLASS) == XRF_REGS) ? 1 \ ! 862: : ((GET_MODE_SIZE (MODE) + UNITS_PER_WORD - 1) / UNITS_PER_WORD))) ! 863: ! 864: /* Letters in the range `I' through `P' in a register constraint string can ! 865: be used to stand for particular ranges of immediate operands. The C ! 866: expression is true iff C is a known letter and VALUE is appropriate for ! 867: that letter. ! 868: ! 869: For the m88000, the following constants are used: ! 870: `I' requires a non-negative 16-bit value. ! 871: `J' requires a non-positive 16-bit value. ! 872: `K' requires a non-negative value < 32. ! 873: `L' requires a constant with only the upper 16-bits set. ! 874: `M' requires constant values that can be formed with `set'. ! 875: `N' requires a negative value. ! 876: `O' requires zero. ! 877: `P' requires a non-negative value. */ ! 878: ! 879: /* Quick tests for certain values. */ ! 880: #define SMALL_INT(X) (SMALL_INTVAL (INTVAL (X))) ! 881: #define SMALL_INTVAL(I) ((unsigned) (I) < 0x10000) ! 882: #define ADD_INT(X) (ADD_INTVAL (INTVAL (X))) ! 883: #define ADD_INTVAL(I) ((unsigned) (I) + 0xffff < 0x1ffff) ! 884: #define POWER_OF_2(I) ((I) && POWER_OF_2_or_0(I)) ! 885: #define POWER_OF_2_or_0(I) (((I) & ((unsigned)(I) - 1)) == 0) ! 886: ! 887: #define CONST_OK_FOR_LETTER_P(VALUE, C) \ ! 888: ((C) == 'I' ? SMALL_INTVAL (VALUE) \ ! 889: : (C) == 'J' ? SMALL_INTVAL (-(VALUE)) \ ! 890: : (C) == 'K' ? (unsigned)(VALUE) < 32 \ ! 891: : (C) == 'L' ? ((VALUE) & 0xffff) == 0 \ ! 892: : (C) == 'M' ? integer_ok_for_set (VALUE) \ ! 893: : (C) == 'N' ? (VALUE) < 0 \ ! 894: : (C) == 'O' ? (VALUE) == 0 \ ! 895: : (C) == 'P' ? (VALUE) >= 0 \ ! 896: : 0) ! 897: ! 898: /* Similar, but for floating constants, and defining letters G and H. ! 899: Here VALUE is the CONST_DOUBLE rtx itself. For the m88000, the ! 900: constraints are: `G' requires zero, and `H' requires one or two. */ ! 901: #define CONST_DOUBLE_OK_FOR_LETTER_P(VALUE, C) \ ! 902: ((C) == 'G' ? (CONST_DOUBLE_HIGH (VALUE) == 0 \ ! 903: && CONST_DOUBLE_LOW (VALUE) == 0) \ ! 904: : 0) ! 905: ! 906: /* Letters in the range `Q' through `U' in a register constraint string ! 907: may be defined in a machine-dependent fashion to stand for arbitrary ! 908: operand types. ! 909: ! 910: For the m88k, `Q' handles addresses in a call context. */ ! 911: ! 912: #define EXTRA_CONSTRAINT(OP, C) \ ! 913: ((C) == 'Q' ? symbolic_address_p (OP) : 0) ! 914: ! 915: /*** Describing Stack Layout ***/ ! 916: ! 917: /* Define this if pushing a word on the stack moves the stack pointer ! 918: to a smaller address. */ ! 919: #define STACK_GROWS_DOWNWARD ! 920: ! 921: /* Define this if the addresses of local variable slots are at negative ! 922: offsets from the frame pointer. */ ! 923: /* #define FRAME_GROWS_DOWNWARD */ ! 924: ! 925: /* Offset from the frame pointer to the first local variable slot to be ! 926: allocated. For the m88k, the debugger wants the return address (r1) ! 927: stored at location r30+4, and the previous frame pointer stored at ! 928: location r30. */ ! 929: #define STARTING_FRAME_OFFSET 8 ! 930: ! 931: /* If we generate an insn to push BYTES bytes, this says how many the ! 932: stack pointer really advances by. The m88k has no push instruction. */ ! 933: /* #define PUSH_ROUNDING(BYTES) */ ! 934: ! 935: /* If defined, the maximum amount of space required for outgoing arguments ! 936: will be computed and placed into the variable ! 937: `current_function_outgoing_args_size'. No space will be pushed ! 938: onto the stack for each call; instead, the function prologue should ! 939: increase the stack frame size by this amount. */ ! 940: #define ACCUMULATE_OUTGOING_ARGS ! 941: ! 942: /* Offset from the stack pointer register to the first location at which ! 943: outgoing arguments are placed. Use the default value zero. */ ! 944: /* #define STACK_POINTER_OFFSET 0 */ ! 945: ! 946: /* Offset of first parameter from the argument pointer register value. ! 947: Using an argument pointer, this is 0 for the m88k. GCC knows ! 948: how to eliminate the argument pointer references if necessary. */ ! 949: #define FIRST_PARM_OFFSET(FNDECL) 0 ! 950: ! 951: /* Define this if functions should assume that stack space has been ! 952: allocated for arguments even when their values are passed in ! 953: registers. ! 954: ! 955: The value of this macro is the size, in bytes, of the area reserved for ! 956: arguments passed in registers. ! 957: ! 958: This space can either be allocated by the caller or be a part of the ! 959: machine-dependent stack frame: `OUTGOING_REG_PARM_STACK_SPACE' ! 960: says which. */ ! 961: #define REG_PARM_STACK_SPACE(FNDECL) 32 ! 962: ! 963: /* Define this macro if REG_PARM_STACK_SPACE is defined but stack ! 964: parameters don't skip the area specified by REG_PARM_STACK_SPACE. ! 965: Normally, when a parameter is not passed in registers, it is placed on ! 966: the stack beyond the REG_PARM_STACK_SPACE area. Defining this macro ! 967: suppresses this behavior and causes the parameter to be passed on the ! 968: stack in its natural location. */ ! 969: #define STACK_PARMS_IN_REG_PARM_AREA ! 970: ! 971: /* Define this if it is the responsibility of the caller to allocate the ! 972: area reserved for arguments passed in registers. If ! 973: `ACCUMULATE_OUTGOING_ARGS' is also defined, the only effect of this ! 974: macro is to determine whether the space is included in ! 975: `current_function_outgoing_args_size'. */ ! 976: /* #define OUTGOING_REG_PARM_STACK_SPACE */ ! 977: ! 978: /* Offset from the stack pointer register to an item dynamically allocated ! 979: on the stack, e.g., by `alloca'. ! 980: ! 981: The default value for this macro is `STACK_POINTER_OFFSET' plus the ! 982: length of the outgoing arguments. The default is correct for most ! 983: machines. See `function.c' for details. */ ! 984: /* #define STACK_DYNAMIC_OFFSET(FUNDECL) ... */ ! 985: ! 986: /* Value is the number of bytes of arguments automatically ! 987: popped when returning from a subroutine call. ! 988: FUNTYPE is the data type of the function (as a tree), ! 989: or for a library call it is an identifier node for the subroutine name. ! 990: SIZE is the number of bytes of arguments passed on the stack. */ ! 991: #define RETURN_POPS_ARGS(FUNTYPE,SIZE) 0 ! 992: ! 993: /* Define how to find the value returned by a function. ! 994: VALTYPE is the data type of the value (as a tree). ! 995: If the precise function being called is known, FUNC is its FUNCTION_DECL; ! 996: otherwise, FUNC is 0. */ ! 997: #define FUNCTION_VALUE(VALTYPE, FUNC) \ ! 998: gen_rtx (REG, \ ! 999: TYPE_MODE (VALTYPE) == BLKmode ? SImode : TYPE_MODE (VALTYPE), \ ! 1000: 2) ! 1001: ! 1002: /* Define this if it differs from FUNCTION_VALUE. */ ! 1003: /* #define FUNCTION_OUTGOING_VALUE(VALTYPE, FUNC) ... */ ! 1004: ! 1005: /* Disable the promotion of some structures and unions to registers. */ ! 1006: #define RETURN_IN_MEMORY(TYPE) \ ! 1007: (TYPE_MODE (TYPE) == BLKmode \ ! 1008: || ((TREE_CODE (TYPE) == RECORD_TYPE || TREE_CODE(TYPE) == UNION_TYPE) \ ! 1009: && !(TYPE_MODE (TYPE) == SImode \ ! 1010: || (TYPE_MODE (TYPE) == BLKmode \ ! 1011: && TYPE_ALIGN (TYPE) == BITS_PER_WORD \ ! 1012: && int_size_in_bytes (TYPE) == UNITS_PER_WORD)))) ! 1013: ! 1014: /* Don't default to pcc-struct-return, because we have already specified ! 1015: exactly how to return structures in the RETURN_IN_MEMORY macro. */ ! 1016: #define DEFAULT_PCC_STRUCT_RETURN 0 ! 1017: ! 1018: /* Define how to find the value returned by a library function ! 1019: assuming the value has mode MODE. */ ! 1020: #define LIBCALL_VALUE(MODE) gen_rtx (REG, MODE, 2) ! 1021: ! 1022: /* True if N is a possible register number for a function value ! 1023: as seen by the caller. */ ! 1024: #define FUNCTION_VALUE_REGNO_P(N) ((N) == 2) ! 1025: ! 1026: /* Determine whether a function argument is passed in a register, and ! 1027: which register. See m88k.c. */ ! 1028: #define FUNCTION_ARG(CUM, MODE, TYPE, NAMED) \ ! 1029: m88k_function_arg (CUM, MODE, TYPE, NAMED) ! 1030: ! 1031: /* Define this if it differs from FUNCTION_ARG. */ ! 1032: /* #define FUNCTION_INCOMING_ARG(CUM, MODE, TYPE, NAMED) ... */ ! 1033: ! 1034: /* A C expression for the number of words, at the beginning of an ! 1035: argument, must be put in registers. The value must be zero for ! 1036: arguments that are passed entirely in registers or that are entirely ! 1037: pushed on the stack. */ ! 1038: #define FUNCTION_ARG_PARTIAL_NREGS(CUM, MODE, TYPE, NAMED) (0) ! 1039: ! 1040: /* A C expression that indicates when an argument must be passed by ! 1041: reference. If nonzero for an argument, a copy of that argument is ! 1042: made in memory and a pointer to the argument is passed instead of the ! 1043: argument itself. The pointer is passed in whatever way is appropriate ! 1044: for passing a pointer to that type. */ ! 1045: #define FUNCTION_ARG_PASS_BY_REFERENCE(CUM, MODE, TYPE, NAMED) (0) ! 1046: ! 1047: /* A C type for declaring a variable that is used as the first argument ! 1048: of `FUNCTION_ARG' and other related values. It suffices to count ! 1049: the number of words of argument so far. */ ! 1050: #define CUMULATIVE_ARGS int ! 1051: ! 1052: /* Initialize a variable CUM of type CUMULATIVE_ARGS for a call to a ! 1053: function whose data type is FNTYPE. For a library call, FNTYPE is 0. */ ! 1054: #define INIT_CUMULATIVE_ARGS(CUM,FNTYPE,LIBNAME) ((CUM) = 0) ! 1055: ! 1056: /* A C statement (sans semicolon) to update the summarizer variable ! 1057: CUM to advance past an argument in the argument list. The values ! 1058: MODE, TYPE and NAMED describe that argument. Once this is done, ! 1059: the variable CUM is suitable for analyzing the *following* argument ! 1060: with `FUNCTION_ARG', etc. (TYPE is null for libcalls where that ! 1061: information may not be available.) */ ! 1062: #define FUNCTION_ARG_ADVANCE(CUM, MODE, TYPE, NAMED) \ ! 1063: do { \ ! 1064: enum machine_mode __mode = (TYPE) ? TYPE_MODE (TYPE) : (MODE); \ ! 1065: if ((CUM & 1) \ ! 1066: && (__mode == DImode || __mode == DFmode \ ! 1067: || ((TYPE) && TYPE_ALIGN (TYPE) > BITS_PER_WORD))) \ ! 1068: CUM++; \ ! 1069: CUM += (((__mode != BLKmode) \ ! 1070: ? GET_MODE_SIZE (MODE) : int_size_in_bytes (TYPE)) \ ! 1071: + 3) / 4; \ ! 1072: } while (0) ! 1073: ! 1074: /* True if N is a possible register number for function argument passing. ! 1075: On the m88000, these are registers 2 through 9. */ ! 1076: #define FUNCTION_ARG_REGNO_P(N) ((N) <= 9 && (N) >= 2) ! 1077: ! 1078: /* A C expression which determines whether, and in which direction, ! 1079: to pad out an argument with extra space. The value should be of ! 1080: type `enum direction': either `upward' to pad above the argument, ! 1081: `downward' to pad below, or `none' to inhibit padding. ! 1082: ! 1083: This macro does not control the *amount* of padding; that is always ! 1084: just enough to reach the next multiple of `FUNCTION_ARG_BOUNDARY'. */ ! 1085: #define FUNCTION_ARG_PADDING(MODE, TYPE) \ ! 1086: ((MODE) == BLKmode \ ! 1087: || ((TYPE) && (TREE_CODE (TYPE) == RECORD_TYPE \ ! 1088: || TREE_CODE (TYPE) == UNION_TYPE)) \ ! 1089: ? upward : GET_MODE_BITSIZE (MODE) < PARM_BOUNDARY ? downward : none) ! 1090: ! 1091: /* If defined, a C expression that gives the alignment boundary, in bits, ! 1092: of an argument with the specified mode and type. If it is not defined, ! 1093: `PARM_BOUNDARY' is used for all arguments. */ ! 1094: #define FUNCTION_ARG_BOUNDARY(MODE, TYPE) \ ! 1095: (((TYPE) ? TYPE_ALIGN (TYPE) : GET_MODE_SIZE (MODE)) <= PARM_BOUNDARY \ ! 1096: ? PARM_BOUNDARY : 2 * PARM_BOUNDARY) ! 1097: ! 1098: /* Generate necessary RTL for __builtin_saveregs(). ! 1099: ARGLIST is the argument list; see expr.c. */ ! 1100: #define EXPAND_BUILTIN_SAVEREGS(ARGLIST) m88k_builtin_saveregs (ARGLIST) ! 1101: ! 1102: /* Generate the assembly code for function entry. */ ! 1103: #define FUNCTION_PROLOGUE(FILE, SIZE) m88k_begin_prologue(FILE, SIZE) ! 1104: ! 1105: /* Perform special actions at the point where the prologue ends. */ ! 1106: #define FUNCTION_END_PROLOGUE(FILE) m88k_end_prologue(FILE) ! 1107: ! 1108: /* Output assembler code to FILE to increment profiler label # LABELNO ! 1109: for profiling a function entry. Redefined in m88kv3.h, m88kv4.h and ! 1110: m88kdgux.h. */ ! 1111: #define FUNCTION_PROFILER(FILE, LABELNO) \ ! 1112: output_function_profiler (FILE, LABELNO, "mcount", 1) ! 1113: ! 1114: /* Maximum length in instructions of the code output by FUNCTION_PROFILER. */ ! 1115: #define FUNCTION_PROFILER_LENGTH (5+3+1+5) ! 1116: ! 1117: /* Output assembler code to FILE to initialize basic-block profiling for ! 1118: the current module. LABELNO is unique to each instance. */ ! 1119: #define FUNCTION_BLOCK_PROFILER(FILE, LABELNO) \ ! 1120: output_function_block_profiler (FILE, LABELNO) ! 1121: ! 1122: /* Maximum length in instructions of the code output by ! 1123: FUNCTION_BLOCK_PROFILER. */ ! 1124: #define FUNCTION_BLOCK_PROFILER_LENGTH (3+5+2+5) ! 1125: ! 1126: /* Output assembler code to FILE to increment the count associated with ! 1127: the basic block number BLOCKNO. */ ! 1128: #define BLOCK_PROFILER(FILE, BLOCKNO) output_block_profiler (FILE, BLOCKNO) ! 1129: ! 1130: /* Maximum length in instructions of the code output by BLOCK_PROFILER. */ ! 1131: #define BLOCK_PROFILER_LENGTH 4 ! 1132: ! 1133: /* EXIT_IGNORE_STACK should be nonzero if, when returning from a function, ! 1134: the stack pointer does not matter. The value is tested only in ! 1135: functions that have frame pointers. ! 1136: No definition is equivalent to always zero. */ ! 1137: #define EXIT_IGNORE_STACK (1) ! 1138: ! 1139: /* Generate the assembly code for function exit. */ ! 1140: #define FUNCTION_EPILOGUE(FILE, SIZE) m88k_end_epilogue(FILE, SIZE) ! 1141: ! 1142: /* Perform special actions at the point where the epilogue begins. */ ! 1143: #define FUNCTION_BEGIN_EPILOGUE(FILE) m88k_begin_epilogue(FILE) ! 1144: ! 1145: /* Value should be nonzero if functions must have frame pointers. ! 1146: Zero means the frame pointer need not be set up (and parms ! 1147: may be accessed via the stack pointer) in functions that seem suitable. ! 1148: This is computed in `reload', in reload1.c. */ ! 1149: #define FRAME_POINTER_REQUIRED \ ! 1150: (frame_pointer_needed \ ! 1151: || (write_symbols != NO_DEBUG && !TARGET_OCS_FRAME_POSITION)) ! 1152: ! 1153: /* Definitions for register eliminations. ! 1154: ! 1155: We have two registers that can be eliminated on the m88k. First, the ! 1156: frame pointer register can often be eliminated in favor of the stack ! 1157: pointer register. Secondly, the argument pointer register can always be ! 1158: eliminated; it is replaced with either the stack or frame pointer. */ ! 1159: ! 1160: /* This is an array of structures. Each structure initializes one pair ! 1161: of eliminable registers. The "from" register number is given first, ! 1162: followed by "to". Eliminations of the same "from" register are listed ! 1163: in order of preference. */ ! 1164: #define ELIMINABLE_REGS \ ! 1165: {{ ARG_POINTER_REGNUM, STACK_POINTER_REGNUM}, \ ! 1166: { ARG_POINTER_REGNUM, FRAME_POINTER_REGNUM}, \ ! 1167: { FRAME_POINTER_REGNUM, STACK_POINTER_REGNUM}} ! 1168: ! 1169: /* Given FROM and TO register numbers, say whether this elimination ! 1170: is allowed. */ ! 1171: #define CAN_ELIMINATE(FROM, TO) \ ! 1172: (!((FROM) == FRAME_POINTER_REGNUM && FRAME_POINTER_REQUIRED)) ! 1173: ! 1174: /* Define the offset between two registers, one to be eliminated, and the other ! 1175: its replacement, at the start of a routine. */ ! 1176: #define INITIAL_ELIMINATION_OFFSET(FROM, TO, OFFSET) \ ! 1177: { m88k_layout_frame (); \ ! 1178: if ((FROM) == FRAME_POINTER_REGNUM && (TO) == STACK_POINTER_REGNUM) \ ! 1179: (OFFSET) = m88k_fp_offset; \ ! 1180: else if ((FROM) == ARG_POINTER_REGNUM && (TO) == FRAME_POINTER_REGNUM) \ ! 1181: (OFFSET) = m88k_stack_size - m88k_fp_offset; \ ! 1182: else if ((FROM) == ARG_POINTER_REGNUM && (TO) == STACK_POINTER_REGNUM) \ ! 1183: (OFFSET) = m88k_stack_size; \ ! 1184: else \ ! 1185: abort (); \ ! 1186: } ! 1187: ! 1188: /*** Trampolines for Nested Functions ***/ ! 1189: ! 1190: /* Output assembler code for a block containing the constant parts ! 1191: of a trampoline, leaving space for the variable parts. ! 1192: ! 1193: This block is placed on the stack and filled in. It is aligned ! 1194: 0 mod 128 and those portions that are executed are constant. ! 1195: This should work for instruction caches that have cache lines up ! 1196: to the aligned amount (128 is arbitrary), provided no other code ! 1197: producer is attempting to play the same game. This of course is ! 1198: in violation of any number of 88open standards. */ ! 1199: ! 1200: #define TRAMPOLINE_TEMPLATE(FILE) \ ! 1201: { \ ! 1202: char buf[256]; \ ! 1203: static int labelno = 0; \ ! 1204: labelno++; \ ! 1205: ASM_GENERATE_INTERNAL_LABEL (buf, "LTRMP", labelno); \ ! 1206: /* Save the return address (r1) in the static chain reg (r11). */ \ ! 1207: fprintf (FILE, "\tor\t %s,%s,0\n", reg_names[11], reg_names[1]); \ ! 1208: /* Locate this block; transfer to the next instruction. */ \ ! 1209: fprintf (FILE, "\tbsr\t %s\n", &buf[1]); \ ! 1210: ASM_OUTPUT_INTERNAL_LABEL (FILE, "LTRMP", labelno); \ ! 1211: /* Save r10; use it as the relative pointer; restore r1. */ \ ! 1212: fprintf (FILE, "\tst\t %s,%s,24\n", reg_names[10], reg_names[1]); \ ! 1213: fprintf (FILE, "\tor\t %s,%s,0\n", reg_names[10], reg_names[1]); \ ! 1214: fprintf (FILE, "\tor\t %s,%s,0\n", reg_names[1], reg_names[11]); \ ! 1215: /* Load the function's address and go there. */ \ ! 1216: fprintf (FILE, "\tld\t %s,%s,32\n", reg_names[11], reg_names[10]); \ ! 1217: fprintf (FILE, "\tjmp.n\t %s\n", reg_names[11]); \ ! 1218: /* Restore r10 and load the static chain register. */ \ ! 1219: fprintf (FILE, "\tld.d\t %s,%s,24\n", reg_names[10], reg_names[10]); \ ! 1220: /* Storage: r10 save area, static chain, function address. */ \ ! 1221: ASM_OUTPUT_INT (FILE, const0_rtx); \ ! 1222: ASM_OUTPUT_INT (FILE, const0_rtx); \ ! 1223: ASM_OUTPUT_INT (FILE, const0_rtx); \ ! 1224: } ! 1225: ! 1226: /* Length in units of the trampoline for entering a nested function. ! 1227: This is really two components. The first 32 bytes are fixed and ! 1228: must be copied; the last 12 bytes are just storage that's filled ! 1229: in later. So for allocation purposes, it's 32+12 bytes, but for ! 1230: initialization purposes, it's 32 bytes. */ ! 1231: ! 1232: #define TRAMPOLINE_SIZE (32+12) ! 1233: ! 1234: /* Alignment required for a trampoline. 128 is used to find the ! 1235: beginning of a line in the instruction cache and to allow for ! 1236: instruction cache lines of up to 128 bytes. */ ! 1237: ! 1238: #define TRAMPOLINE_ALIGNMENT 128 ! 1239: ! 1240: /* Emit RTL insns to initialize the variable parts of a trampoline. ! 1241: FNADDR is an RTX for the address of the function's pure code. ! 1242: CXT is an RTX for the static chain value for the function. */ ! 1243: ! 1244: #define INITIALIZE_TRAMPOLINE(TRAMP, FNADDR, CXT) \ ! 1245: { \ ! 1246: emit_move_insn (gen_rtx (MEM, SImode, plus_constant (TRAMP, 40)), FNADDR); \ ! 1247: emit_move_insn (gen_rtx (MEM, SImode, plus_constant (TRAMP, 36)), CXT); \ ! 1248: } ! 1249: ! 1250: /*** Library Subroutine Names ***/ ! 1251: ! 1252: /* Define this macro if GNU CC should generate calls to the System V ! 1253: (and ANSI C) library functions `memcpy' and `memset' rather than ! 1254: the BSD functions `bcopy' and `bzero'. */ ! 1255: #define TARGET_MEM_FUNCTIONS ! 1256: ! 1257: /*** Addressing Modes ***/ ! 1258: ! 1259: /* #define HAVE_POST_INCREMENT */ ! 1260: /* #define HAVE_POST_DECREMENT */ ! 1261: ! 1262: /* #define HAVE_PRE_DECREMENT */ ! 1263: /* #define HAVE_PRE_INCREMENT */ ! 1264: ! 1265: /* Recognize any constant value that is a valid address. */ ! 1266: #define CONSTANT_ADDRESS_P(X) \ ! 1267: (GET_CODE (X) == LABEL_REF || GET_CODE (X) == SYMBOL_REF \ ! 1268: || GET_CODE (X) == CONST_INT || GET_CODE (X) == CONST \ ! 1269: || GET_CODE (X) == HIGH) ! 1270: ! 1271: /* Maximum number of registers that can appear in a valid memory address. */ ! 1272: #define MAX_REGS_PER_ADDRESS 2 ! 1273: ! 1274: /* The condition for memory shift insns. */ ! 1275: #define SCALED_ADDRESS_P(ADDR) \ ! 1276: (GET_CODE (ADDR) == PLUS \ ! 1277: && (GET_CODE (XEXP (ADDR, 0)) == MULT \ ! 1278: || GET_CODE (XEXP (ADDR, 1)) == MULT)) ! 1279: ! 1280: /* Can the reference to X be made short? */ ! 1281: #define SHORT_ADDRESS_P(X,TEMP) \ ! 1282: ((TEMP) = (GET_CODE (X) == CONST ? get_related_value (X) : X), \ ! 1283: ((TEMP) && GET_CODE (TEMP) == SYMBOL_REF && SYMBOL_REF_FLAG (TEMP))) ! 1284: ! 1285: /* GO_IF_LEGITIMATE_ADDRESS recognizes an RTL expression ! 1286: that is a valid memory address for an instruction. ! 1287: The MODE argument is the machine mode for the MEM expression ! 1288: that wants to use this address. ! 1289: ! 1290: On the m88000, a legitimate address has the form REG, REG+REG, ! 1291: REG+SMALLINT, REG+(REG*modesize) (REG[REG]), or SMALLINT. ! 1292: ! 1293: The register elimination process should deal with the argument ! 1294: pointer and frame pointer changing to REG+SMALLINT. */ ! 1295: ! 1296: #define LEGITIMATE_INDEX_P(X, MODE) \ ! 1297: ((GET_CODE (X) == CONST_INT \ ! 1298: && SMALL_INT (X)) \ ! 1299: || (REG_P (X) \ ! 1300: && REG_OK_FOR_INDEX_P (X)) \ ! 1301: || (GET_CODE (X) == MULT \ ! 1302: && REG_P (XEXP (X, 0)) \ ! 1303: && REG_OK_FOR_INDEX_P (XEXP (X, 0)) \ ! 1304: && GET_CODE (XEXP (X, 1)) == CONST_INT \ ! 1305: && INTVAL (XEXP (X, 1)) == GET_MODE_SIZE (MODE))) ! 1306: ! 1307: #define GO_IF_LEGITIMATE_ADDRESS(MODE, X, ADDR) \ ! 1308: { \ ! 1309: register rtx _x; \ ! 1310: if (REG_P (X)) \ ! 1311: { \ ! 1312: if (REG_OK_FOR_BASE_P (X)) \ ! 1313: goto ADDR; \ ! 1314: } \ ! 1315: else if (GET_CODE (X) == PLUS) \ ! 1316: { \ ! 1317: register rtx _x0 = XEXP (X, 0); \ ! 1318: register rtx _x1 = XEXP (X, 1); \ ! 1319: if ((flag_pic \ ! 1320: && _x0 == pic_offset_table_rtx \ ! 1321: && (flag_pic == 2 \ ! 1322: ? REG_P (_x1) \ ! 1323: : (GET_CODE (_x1) == SYMBOL_REF \ ! 1324: || GET_CODE (_x1) == LABEL_REF))) \ ! 1325: || (REG_P (_x0) \ ! 1326: && (REG_OK_FOR_BASE_P (_x0) \ ! 1327: && LEGITIMATE_INDEX_P (_x1, MODE))) \ ! 1328: || (REG_P (_x1) \ ! 1329: && (REG_OK_FOR_BASE_P (_x1) \ ! 1330: && LEGITIMATE_INDEX_P (_x0, MODE)))) \ ! 1331: goto ADDR; \ ! 1332: } \ ! 1333: else if (GET_CODE (X) == LO_SUM) \ ! 1334: { \ ! 1335: register rtx _x0 = XEXP (X, 0); \ ! 1336: register rtx _x1 = XEXP (X, 1); \ ! 1337: if (((REG_P (_x0) \ ! 1338: && REG_OK_FOR_BASE_P (_x0)) \ ! 1339: || (GET_CODE (_x0) == SUBREG \ ! 1340: && REG_P (SUBREG_REG (_x0)) \ ! 1341: && REG_OK_FOR_BASE_P (SUBREG_REG (_x0)))) \ ! 1342: && CONSTANT_P (_x1)) \ ! 1343: goto ADDR; \ ! 1344: } \ ! 1345: else if (GET_CODE (X) == CONST_INT \ ! 1346: && SMALL_INT (X)) \ ! 1347: goto ADDR; \ ! 1348: else if (SHORT_ADDRESS_P (X, _x)) \ ! 1349: goto ADDR; \ ! 1350: } ! 1351: ! 1352: /* The macros REG_OK_FOR..._P assume that the arg is a REG rtx ! 1353: and check its validity for a certain class. ! 1354: We have two alternate definitions for each of them. ! 1355: The usual definition accepts all pseudo regs; the other rejects ! 1356: them unless they have been allocated suitable hard regs. ! 1357: The symbol REG_OK_STRICT causes the latter definition to be used. ! 1358: ! 1359: Most source files want to accept pseudo regs in the hope that ! 1360: they will get allocated to the class that the insn wants them to be in. ! 1361: Source files for reload pass need to be strict. ! 1362: After reload, it makes no difference, since pseudo regs have ! 1363: been eliminated by then. */ ! 1364: ! 1365: #ifndef REG_OK_STRICT ! 1366: ! 1367: /* Nonzero if X is a hard reg that can be used as an index ! 1368: or if it is a pseudo reg. Not the argument pointer. */ ! 1369: #define REG_OK_FOR_INDEX_P(X) \ ! 1370: (!XRF_REGNO_P(REGNO (X))) ! 1371: /* Nonzero if X is a hard reg that can be used as a base reg ! 1372: or if it is a pseudo reg. */ ! 1373: #define REG_OK_FOR_BASE_P(X) (REG_OK_FOR_INDEX_P (X)) ! 1374: ! 1375: #else ! 1376: ! 1377: /* Nonzero if X is a hard reg that can be used as an index. */ ! 1378: #define REG_OK_FOR_INDEX_P(X) REGNO_OK_FOR_INDEX_P (REGNO (X)) ! 1379: /* Nonzero if X is a hard reg that can be used as a base reg. */ ! 1380: #define REG_OK_FOR_BASE_P(X) REGNO_OK_FOR_BASE_P (REGNO (X)) ! 1381: ! 1382: #endif ! 1383: ! 1384: /* Try machine-dependent ways of modifying an illegitimate address ! 1385: to be legitimate. If we find one, return the new, valid address. ! 1386: This macro is used in only one place: `memory_address' in explow.c. ! 1387: ! 1388: OLDX is the address as it was before break_out_memory_refs was called. ! 1389: In some cases it is useful to look at this to decide what needs to be done. ! 1390: ! 1391: MODE and WIN are passed so that this macro can use ! 1392: GO_IF_LEGITIMATE_ADDRESS. ! 1393: ! 1394: It is always safe for this macro to do nothing. It exists to recognize ! 1395: opportunities to optimize the output. */ ! 1396: ! 1397: /* On the m88000, change REG+N into REG+REG, and REG+(X*Y) into REG+REG. */ ! 1398: ! 1399: #define LEGITIMIZE_ADDRESS(X,OLDX,MODE,WIN) \ ! 1400: { \ ! 1401: if (GET_CODE (X) == PLUS && CONSTANT_ADDRESS_P (XEXP (X, 1))) \ ! 1402: (X) = gen_rtx (PLUS, SImode, XEXP (X, 0), \ ! 1403: copy_to_mode_reg (SImode, XEXP (X, 1))); \ ! 1404: if (GET_CODE (X) == PLUS && CONSTANT_ADDRESS_P (XEXP (X, 0))) \ ! 1405: (X) = gen_rtx (PLUS, SImode, XEXP (X, 1), \ ! 1406: copy_to_mode_reg (SImode, XEXP (X, 0))); \ ! 1407: if (GET_CODE (X) == PLUS && GET_CODE (XEXP (X, 0)) == MULT) \ ! 1408: (X) = gen_rtx (PLUS, SImode, XEXP (X, 1), \ ! 1409: force_operand (XEXP (X, 0), 0)); \ ! 1410: if (GET_CODE (X) == PLUS && GET_CODE (XEXP (X, 1)) == MULT) \ ! 1411: (X) = gen_rtx (PLUS, SImode, XEXP (X, 0), \ ! 1412: force_operand (XEXP (X, 1), 0)); \ ! 1413: if (GET_CODE (X) == SYMBOL_REF || GET_CODE (X) == CONST \ ! 1414: || GET_CODE (X) == LABEL_REF) \ ! 1415: (X) = legitimize_address (flag_pic, X, 0, 0); \ ! 1416: if (memory_address_p (MODE, X)) \ ! 1417: goto WIN; } ! 1418: ! 1419: /* Go to LABEL if ADDR (a legitimate address expression) ! 1420: has an effect that depends on the machine mode it is used for. ! 1421: On the the m88000 this is never true. */ ! 1422: ! 1423: #define GO_IF_MODE_DEPENDENT_ADDRESS(ADDR,LABEL) ! 1424: ! 1425: /* Nonzero if the constant value X is a legitimate general operand. ! 1426: It is given that X satisfies CONSTANT_P or is a CONST_DOUBLE. */ ! 1427: #define LEGITIMATE_CONSTANT_P(X) (1) ! 1428: ! 1429: /*** Condition Code Information ***/ ! 1430: ! 1431: /* C code for a data type which is used for declaring the `mdep' ! 1432: component of `cc_status'. It defaults to `int'. */ ! 1433: /* #define CC_STATUS_MDEP int */ ! 1434: ! 1435: /* A C expression to initialize the `mdep' field to "empty". */ ! 1436: /* #define CC_STATUS_MDEP_INIT (cc_status.mdep = 0) */ ! 1437: ! 1438: /* Macro to zap the normal portions of CC_STATUS, but leave the ! 1439: machine dependent parts (ie, literal synthesis) alone. */ ! 1440: /* #define CC_STATUS_INIT_NO_MDEP \ ! 1441: (cc_status.flags = 0, cc_status.value1 = 0, cc_status.value2 = 0) */ ! 1442: ! 1443: /* When using a register to hold the condition codes, the cc_status ! 1444: mechanism cannot be used. */ ! 1445: #define NOTICE_UPDATE_CC(EXP, INSN) (0) ! 1446: ! 1447: /*** Miscellaneous Parameters ***/ ! 1448: ! 1449: /* Define the codes that are matched by predicates in m88k.c. */ ! 1450: #define PREDICATE_CODES \ ! 1451: {"move_operand", {SUBREG, REG, CONST_INT, LO_SUM, MEM}}, \ ! 1452: {"call_address_operand", {SUBREG, REG, SYMBOL_REF, LABEL_REF, CONST}}, \ ! 1453: {"arith_operand", {SUBREG, REG, CONST_INT}}, \ ! 1454: {"arith5_operand", {SUBREG, REG, CONST_INT}}, \ ! 1455: {"arith32_operand", {SUBREG, REG, CONST_INT}}, \ ! 1456: {"arith64_operand", {SUBREG, REG, CONST_INT}}, \ ! 1457: {"int5_operand", {CONST_INT}}, \ ! 1458: {"int32_operand", {CONST_INT}}, \ ! 1459: {"add_operand", {SUBREG, REG, CONST_INT}}, \ ! 1460: {"reg_or_bbx_mask_operand", {SUBREG, REG, CONST_INT}}, \ ! 1461: {"real_or_0_operand", {SUBREG, REG, CONST_DOUBLE}}, \ ! 1462: {"relop", {EQ, NE, LT, LE, GE, GT, LTU, LEU, GEU, GTU}}, \ ! 1463: {"relop_no_unsigned", {EQ, NE, LT, LE, GE, GT}}, \ ! 1464: {"equality_op", {EQ, NE}}, \ ! 1465: {"pc_or_label_ref", {PC, LABEL_REF}}, ! 1466: ! 1467: /* The case table contains either words or branch instructions. This says ! 1468: which. We always claim that the vector is PC-relative. It is position ! 1469: independent when -fpic is used. */ ! 1470: #define CASE_VECTOR_INSNS (TARGET_88100 || flag_pic) ! 1471: ! 1472: /* An alias for a machine mode name. This is the machine mode that ! 1473: elements of a jump-table should have. */ ! 1474: #define CASE_VECTOR_MODE SImode ! 1475: ! 1476: /* Define this macro if jump-tables should contain relative addresses. */ ! 1477: #define CASE_VECTOR_PC_RELATIVE ! 1478: ! 1479: /* Define this if control falls through a `case' insn when the index ! 1480: value is out of range. This means the specified default-label is ! 1481: actually ignored by the `case' insn proper. */ ! 1482: /* #define CASE_DROPS_THROUGH */ ! 1483: ! 1484: /* Define this to be the smallest number of different values for which it ! 1485: is best to use a jump-table instead of a tree of conditional branches. ! 1486: The default is 4 for machines with a casesi instruction and 5 otherwise. ! 1487: The best 88110 number is around 7, though the exact number isn't yet ! 1488: known. A third alternative for the 88110 is to use a binary tree of ! 1489: bb1 instructions on bits 2/1/0 if the range is dense. This may not ! 1490: win very much though. */ ! 1491: #define CASE_VALUES_THRESHOLD (TARGET_88100 ? 4 : 7) ! 1492: ! 1493: /* Specify the tree operation to be used to convert reals to integers. */ ! 1494: #define IMPLICIT_FIX_EXPR FIX_ROUND_EXPR ! 1495: ! 1496: /* This is the kind of divide that is easiest to do in the general case. */ ! 1497: #define EASY_DIV_EXPR TRUNC_DIV_EXPR ! 1498: ! 1499: /* Define this as 1 if `char' should by default be signed; else as 0. */ ! 1500: #define DEFAULT_SIGNED_CHAR 1 ! 1501: ! 1502: /* The 88open ABI says size_t is unsigned int. */ ! 1503: #define SIZE_TYPE "unsigned int" ! 1504: ! 1505: /* Allow and ignore #sccs directives */ ! 1506: #define SCCS_DIRECTIVE ! 1507: ! 1508: /* Handle #pragma pack and sometimes #pragma weak. */ ! 1509: #define HANDLE_SYSV_PRAGMA ! 1510: ! 1511: /* Tell when to handle #pragma weak. This is only done for V.4. */ ! 1512: #define HANDLE_PRAGMA_WEAK TARGET_SVR4 ! 1513: ! 1514: /* Max number of bytes we can move from memory to memory ! 1515: in one reasonably fast instruction. */ ! 1516: #define MOVE_MAX 8 ! 1517: ! 1518: /* Define if normal loads of shorter-than-word items from memory clears ! 1519: the rest of the bigs in the register. */ ! 1520: #define BYTE_LOADS_ZERO_EXTEND ! 1521: ! 1522: /* Zero if access to memory by bytes is faster. */ ! 1523: #define SLOW_BYTE_ACCESS 1 ! 1524: ! 1525: /* Value is 1 if truncating an integer of INPREC bits to OUTPREC bits ! 1526: is done just by pretending it is already truncated. */ ! 1527: #define TRULY_NOOP_TRUNCATION(OUTPREC, INPREC) 1 ! 1528: ! 1529: /* Define this if addresses of constant functions ! 1530: shouldn't be put through pseudo regs where they can be cse'd. ! 1531: Desirable on machines where ordinary constants are expensive ! 1532: but a CALL with constant address is cheap. */ ! 1533: #define NO_FUNCTION_CSE ! 1534: ! 1535: /* Define this macro if an argument declared as `char' or ! 1536: `short' in a prototype should actually be passed as an ! 1537: `int'. In addition to avoiding errors in certain cases of ! 1538: mismatch, it also makes for better code on certain machines. */ ! 1539: #define PROMOTE_PROTOTYPES ! 1540: ! 1541: /* Define this macro if a float function always returns float ! 1542: (even in traditional mode). Redefined in m88kluna.h. */ ! 1543: #define TRADITIONAL_RETURN_FLOAT ! 1544: ! 1545: /* We assume that the store-condition-codes instructions store 0 for false ! 1546: and some other value for true. This is the value stored for true. */ ! 1547: #define STORE_FLAG_VALUE -1 ! 1548: ! 1549: /* Specify the machine mode that pointers have. ! 1550: After generation of rtl, the compiler makes no further distinction ! 1551: between pointers and any other objects of this machine mode. */ ! 1552: #define Pmode SImode ! 1553: ! 1554: /* A function address in a call instruction ! 1555: is a word address (for indexing purposes) ! 1556: so give the MEM rtx word mode. */ ! 1557: #define FUNCTION_MODE SImode ! 1558: ! 1559: /* A barrier will be aligned so account for the possible expansion. ! 1560: A volatile load may be preceded by a serializing instruction. ! 1561: Account for profiling code output at NOTE_INSN_PROLOGUE_END. ! 1562: Account for block profiling code at basic block boundaries. */ ! 1563: #define ADJUST_INSN_LENGTH(RTX, LENGTH) \ ! 1564: if (GET_CODE (RTX) == BARRIER \ ! 1565: || (TARGET_SERIALIZE_VOLATILE \ ! 1566: && GET_CODE (RTX) == INSN \ ! 1567: && GET_CODE (PATTERN (RTX)) == SET \ ! 1568: && ((GET_CODE (SET_SRC (PATTERN (RTX))) == MEM \ ! 1569: && MEM_VOLATILE_P (SET_SRC (PATTERN (RTX))))))) \ ! 1570: LENGTH += 1; \ ! 1571: else if (GET_CODE (RTX) == NOTE \ ! 1572: && NOTE_LINE_NUMBER (RTX) == NOTE_INSN_PROLOGUE_END) \ ! 1573: { \ ! 1574: if (profile_block_flag) \ ! 1575: LENGTH += FUNCTION_BLOCK_PROFILER_LENGTH; \ ! 1576: if (profile_flag) \ ! 1577: LENGTH += (FUNCTION_PROFILER_LENGTH + REG_PUSH_LENGTH \ ! 1578: + REG_POP_LENGTH); \ ! 1579: } \ ! 1580: else if (profile_block_flag \ ! 1581: && (GET_CODE (RTX) == CODE_LABEL \ ! 1582: || GET_CODE (RTX) == JUMP_INSN \ ! 1583: || (GET_CODE (RTX) == INSN \ ! 1584: && GET_CODE (PATTERN (RTX)) == SEQUENCE \ ! 1585: && GET_CODE (XVECEXP (PATTERN (RTX), 0, 0)) == JUMP_INSN)))\ ! 1586: LENGTH += BLOCK_PROFILER_LENGTH; ! 1587: ! 1588: /* Track the state of the last volatile memory reference. Clear the ! 1589: state with CC_STATUS_INIT for now. */ ! 1590: #define CC_STATUS_INIT m88k_volatile_code = '\0' ! 1591: ! 1592: /* Compute the cost of computing a constant rtl expression RTX ! 1593: whose rtx-code is CODE. The body of this macro is a portion ! 1594: of a switch statement. If the code is computed here, ! 1595: return it with a return statement. Otherwise, break from the switch. ! 1596: ! 1597: We assume that any 16 bit integer can easily be recreated, so we ! 1598: indicate 0 cost, in an attempt to get GCC not to optimize things ! 1599: like comparison against a constant. ! 1600: ! 1601: The cost of CONST_DOUBLE is zero (if it can be placed in an insn, it ! 1602: is as good as a register; since it can't be placed in any insn, it ! 1603: won't do anything in cse, but it will cause expand_binop to pass the ! 1604: constant to the define_expands). */ ! 1605: #define CONST_COSTS(RTX,CODE,OUTER_CODE) \ ! 1606: case CONST_INT: \ ! 1607: if (SMALL_INT (RTX)) \ ! 1608: return 0; \ ! 1609: else if (SMALL_INTVAL (- INTVAL (RTX))) \ ! 1610: return 2; \ ! 1611: else if (classify_integer (SImode, INTVAL (RTX)) != m88k_oru_or) \ ! 1612: return 4; \ ! 1613: return 7; \ ! 1614: case HIGH: \ ! 1615: return 2; \ ! 1616: case CONST: \ ! 1617: case LABEL_REF: \ ! 1618: case SYMBOL_REF: \ ! 1619: if (flag_pic) \ ! 1620: return (flag_pic == 2) ? 11 : 8; \ ! 1621: return 5; \ ! 1622: case CONST_DOUBLE: \ ! 1623: return 0; ! 1624: ! 1625: /* Provide the costs of an addressing mode that contains ADDR. ! 1626: If ADDR is not a valid address, its cost is irrelevant. ! 1627: REG+REG is made slightly more expensive because it might keep ! 1628: a register live for longer than we might like. */ ! 1629: #define ADDRESS_COST(ADDR) \ ! 1630: (GET_CODE (ADDR) == REG ? 1 : \ ! 1631: GET_CODE (ADDR) == LO_SUM ? 1 : \ ! 1632: GET_CODE (ADDR) == HIGH ? 2 : \ ! 1633: GET_CODE (ADDR) == MULT ? 1 : \ ! 1634: GET_CODE (ADDR) != PLUS ? 4 : \ ! 1635: (REG_P (XEXP (ADDR, 0)) && REG_P (XEXP (ADDR, 1))) ? 2 : 1) ! 1636: ! 1637: /* Provide the costs of a rtl expression. This is in the body of a ! 1638: switch on CODE. */ ! 1639: #define RTX_COSTS(X,CODE,OUTER_CODE) \ ! 1640: case MEM: \ ! 1641: return COSTS_N_INSNS (2); \ ! 1642: case MULT: \ ! 1643: return COSTS_N_INSNS (3); \ ! 1644: case DIV: \ ! 1645: case UDIV: \ ! 1646: case MOD: \ ! 1647: case UMOD: \ ! 1648: return COSTS_N_INSNS (38); ! 1649: ! 1650: /* A C expressions returning the cost of moving data of MODE from a register ! 1651: to or from memory. This is more costly than between registers. */ ! 1652: #define MEMORY_MOVE_COST(MODE) 4 ! 1653: ! 1654: /* Provide the cost of a branch. Exact meaning under development. */ ! 1655: #define BRANCH_COST (TARGET_88100 ? 1 : 2) ! 1656: ! 1657: /* A C statement (sans semicolon) to update the integer variable COST ! 1658: based on the relationship between INSN that is dependent on ! 1659: DEP_INSN through the dependence LINK. The default is to make no ! 1660: adjustment to COST. On the m88k, ignore the cost of anti- and ! 1661: output-dependencies. On the m88100, a store can issue two cycles ! 1662: before the value (not the address) has finished computing. */ ! 1663: #define ADJUST_COST(INSN,LINK,DEP_INSN,COST) \ ! 1664: do { \ ! 1665: if (REG_NOTE_KIND (LINK) != 0) \ ! 1666: (COST) = 0; /* Anti or output dependence. */ \ ! 1667: else if (! TARGET_88100 \ ! 1668: && recog_memoized (INSN) >= 0 \ ! 1669: && get_attr_type (INSN) == TYPE_STORE \ ! 1670: && SET_SRC (PATTERN (INSN)) == SET_DEST (PATTERN (DEP_INSN))) \ ! 1671: (COST) -= 4; /* 88110 store reservation station. */ \ ! 1672: } while (0) ! 1673: ! 1674: /* Define this to be nonzero if the character `$' should be allowed ! 1675: by default in identifier names. */ ! 1676: #define DOLLARS_IN_IDENTIFIERS 1 ! 1677: ! 1678: /* Do not break .stabs pseudos into continuations. */ ! 1679: #define DBX_CONTIN_LENGTH 0 ! 1680: ! 1681: /*** Output of Assembler Code ***/ ! 1682: ! 1683: /* Control the assembler format that we output. */ ! 1684: ! 1685: /* Which assembler syntax. Redefined in m88kdgux.h. */ ! 1686: #define VERSION_0300_SYNTAX TARGET_SVR4 ! 1687: ! 1688: /* At some point, m88kv4.h will redefine this. */ ! 1689: #define VERSION_0400_SYNTAX 0 ! 1690: ! 1691: /* Allow pseudo-ops to be overridden. Override these in svr[34].h. */ ! 1692: #undef INT_ASM_OP ! 1693: #undef ASCII_DATA_ASM_OP ! 1694: #undef CONST_SECTION_ASM_OP ! 1695: #undef CTORS_SECTION_ASM_OP ! 1696: #undef DTORS_SECTION_ASM_OP ! 1697: #undef INIT_SECTION_ASM_OP ! 1698: #undef FINI_SECTION_ASM_OP ! 1699: #undef TYPE_ASM_OP ! 1700: #undef SIZE_ASM_OP ! 1701: #undef WEAK_ASM_OP ! 1702: #undef SET_ASM_OP ! 1703: #undef SKIP_ASM_OP ! 1704: #undef COMMON_ASM_OP ! 1705: #undef ALIGN_ASM_OP ! 1706: #undef IDENT_ASM_OP ! 1707: ! 1708: /* These are used in varasm.c as well. */ ! 1709: #define TEXT_SECTION_ASM_OP "text" ! 1710: #define DATA_SECTION_ASM_OP "data" ! 1711: ! 1712: /* Other sections. */ ! 1713: #define CONST_SECTION_ASM_OP (VERSION_0300_SYNTAX \ ! 1714: ? "section\t .rodata,\"a\"" \ ! 1715: : "section\t .rodata,\"x\"") ! 1716: #define TDESC_SECTION_ASM_OP (VERSION_0300_SYNTAX \ ! 1717: ? "section\t .tdesc,\"a\"" \ ! 1718: : "section\t .tdesc,\"x\"") ! 1719: ! 1720: /* These must be constant strings for crtstuff.c. */ ! 1721: #define CTORS_SECTION_ASM_OP "section\t .ctors,\"d\"" ! 1722: #define DTORS_SECTION_ASM_OP "section\t .dtors,\"d\"" ! 1723: #define INIT_SECTION_ASM_OP "section\t .init,\"x\"" ! 1724: #define FINI_SECTION_ASM_OP "section\t .fini,\"x\"" ! 1725: ! 1726: /* These are pretty much common to all assemblers. */ ! 1727: #define IDENT_ASM_OP "ident" ! 1728: #define FILE_ASM_OP "file" ! 1729: #define SECTION_ASM_OP "section" ! 1730: #define SET_ASM_OP "def" ! 1731: #define GLOBAL_ASM_OP "global" ! 1732: #define ALIGN_ASM_OP "align" ! 1733: #define SKIP_ASM_OP "zero" ! 1734: #define COMMON_ASM_OP "comm" ! 1735: #define BSS_ASM_OP "bss" ! 1736: #define FLOAT_ASM_OP "float" ! 1737: #define DOUBLE_ASM_OP "double" ! 1738: #define INT_ASM_OP "word" ! 1739: #define ASM_LONG INT_ASM_OP ! 1740: #define SHORT_ASM_OP "half" ! 1741: #define CHAR_ASM_OP "byte" ! 1742: #define ASCII_DATA_ASM_OP "string" ! 1743: ! 1744: /* These are particular to the global pool optimization. */ ! 1745: #define SBSS_ASM_OP "sbss" ! 1746: #define SCOMM_ASM_OP "scomm" ! 1747: #define SDATA_SECTION_ASM_OP "sdata" ! 1748: ! 1749: /* These are specific to PIC. */ ! 1750: #define TYPE_ASM_OP "type" ! 1751: #define SIZE_ASM_OP "size" ! 1752: #define WEAK_ASM_OP "weak" ! 1753: #ifndef AS_BUG_POUND_TYPE /* Faulty assemblers require @ rather than #. */ ! 1754: #undef TYPE_OPERAND_FMT ! 1755: #define TYPE_OPERAND_FMT "#%s" ! 1756: #endif ! 1757: ! 1758: /* These are specific to version 03.00 assembler syntax. */ ! 1759: #define INTERNAL_ASM_OP "local" ! 1760: #define VERSION_ASM_OP "version" ! 1761: #define UNALIGNED_SHORT_ASM_OP "uahalf" ! 1762: #define UNALIGNED_INT_ASM_OP "uaword" ! 1763: #define PUSHSECTION_ASM_OP "section" ! 1764: #define POPSECTION_ASM_OP "previous" ! 1765: ! 1766: /* These are specific to the version 04.00 assembler syntax. */ ! 1767: #define REQUIRES_88110_ASM_OP "requires_88110" ! 1768: ! 1769: /* Output any initial stuff to the assembly file. Always put out ! 1770: a file directive, even if not debugging. ! 1771: ! 1772: Immediately after putting out the file, put out a "sem.<value>" ! 1773: declaration. This should be harmless on other systems, and ! 1774: is used in DG/UX by the debuggers to supplement COFF. The ! 1775: fields in the integer value are as follows: ! 1776: ! 1777: Bits Value Meaning ! 1778: ---- ----- ------- ! 1779: 0-1 0 No information about stack locations ! 1780: 1 Auto/param locations are based on r30 ! 1781: 2 Auto/param locations are based on CFA ! 1782: ! 1783: 3-2 0 No information on dimension order ! 1784: 1 Array dims in sym table matches source language ! 1785: 2 Array dims in sym table is in reverse order ! 1786: ! 1787: 5-4 0 No information about the case of global names ! 1788: 1 Global names appear in the symbol table as in the source ! 1789: 2 Global names have been converted to lower case ! 1790: 3 Global names have been converted to upper case. */ ! 1791: ! 1792: #ifdef SDB_DEBUGGING_INFO ! 1793: #define ASM_COFFSEM(FILE) \ ! 1794: if (write_symbols == SDB_DEBUG) \ ! 1795: { \ ! 1796: fprintf (FILE, "\nsem.%x:\t\t; %s\n", \ ! 1797: (((TARGET_OCS_FRAME_POSITION) ? 2 : 1) << 0) + (1 << 2) + (1 << 4),\ ! 1798: (TARGET_OCS_FRAME_POSITION) \ ! 1799: ? "frame is CFA, normal array dims, case unchanged" \ ! 1800: : "frame is r30, normal array dims, case unchanged"); \ ! 1801: } ! 1802: #else ! 1803: #define ASM_COFFSEM(FILE) ! 1804: #endif ! 1805: ! 1806: /* Output the first line of the assembly file. Redefined in m88kdgux.h. */ ! 1807: ! 1808: #define ASM_FIRST_LINE(FILE) \ ! 1809: do { \ ! 1810: if (m88k_version) \ ! 1811: fprintf (FILE, "\t%s\t \"%s\"\n", VERSION_ASM_OP, m88k_version); \ ! 1812: } while (0) ! 1813: ! 1814: /* Override svr[34].h. */ ! 1815: #undef ASM_FILE_START ! 1816: #define ASM_FILE_START(FILE) \ ! 1817: output_file_start (FILE, f_options, sizeof f_options / sizeof f_options[0], \ ! 1818: W_options, sizeof W_options / sizeof W_options[0]) ! 1819: ! 1820: #undef ASM_FILE_END ! 1821: ! 1822: #define ASM_OUTPUT_SOURCE_FILENAME(FILE, NAME) \ ! 1823: fprintf (FILE, "\t%s\t \"%s\"\n", FILE_ASM_OP, NAME) ! 1824: ! 1825: #ifdef SDB_DEBUGGING_INFO ! 1826: #define ASM_OUTPUT_SOURCE_LINE(FILE, LINE) \ ! 1827: if (m88k_prologue_done) \ ! 1828: fprintf (FILE, "\n\tln\t %d\t\t\t\t; Real source line %d\n",\ ! 1829: LINE - sdb_begin_function_line, LINE) ! 1830: #endif ! 1831: ! 1832: /* Code to handle #ident directives. Override svr[34].h definition. */ ! 1833: #undef ASM_OUTPUT_IDENT ! 1834: #ifdef DBX_DEBUGGING_INFO ! 1835: #define ASM_OUTPUT_IDENT(FILE, NAME) ! 1836: #else ! 1837: #define ASM_OUTPUT_IDENT(FILE, NAME) \ ! 1838: output_ascii (FILE, IDENT_ASM_OP, 4000, NAME, strlen (NAME)); ! 1839: #endif ! 1840: ! 1841: /* Output to assembler file text saying following lines ! 1842: may contain character constants, extra white space, comments, etc. */ ! 1843: #define ASM_APP_ON "" ! 1844: ! 1845: /* Output to assembler file text saying following lines ! 1846: no longer contain unusual constructs. */ ! 1847: #define ASM_APP_OFF "" ! 1848: ! 1849: /* Format the assembly opcode so that the arguments are all aligned. ! 1850: The maximum instruction size is 8 characters (fxxx.xxx), so a tab and a ! 1851: space will do to align the output. Abandon the output if a `%' is ! 1852: encountered. */ ! 1853: #define ASM_OUTPUT_OPCODE(STREAM, PTR) \ ! 1854: { \ ! 1855: int ch; \ ! 1856: char *orig_ptr; \ ! 1857: \ ! 1858: for (orig_ptr = (PTR); \ ! 1859: (ch = *(PTR)) && ch != ' ' && ch != '\t' && ch != '\n' && ch != '%'; \ ! 1860: (PTR)++) \ ! 1861: putc (ch, STREAM); \ ! 1862: \ ! 1863: if (ch == ' ' && orig_ptr != (PTR) && (PTR) - orig_ptr < 8) \ ! 1864: putc ('\t', STREAM); \ ! 1865: } ! 1866: ! 1867: /* How to refer to registers in assembler output. ! 1868: This sequence is indexed by compiler's hard-register-number. ! 1869: Updated by OVERRIDE_OPTIONS to include the # for version 03.00 syntax. */ ! 1870: ! 1871: #define REGISTER_NAMES \ ! 1872: {"#r0"+1, "#r1"+1, "#r2"+1, "#r3"+1, "#r4"+1, "#r5"+1, "#r6"+1, "#r7"+1, \ ! 1873: "#r8"+1, "#r9"+1, "#r10"+1,"#r11"+1,"#r12"+1,"#r13"+1,"#r14"+1,"#r15"+1,\ ! 1874: "#r16"+1,"#r17"+1,"#r18"+1,"#r19"+1,"#r20"+1,"#r21"+1,"#r22"+1,"#r23"+1,\ ! 1875: "#r24"+1,"#r25"+1,"#r26"+1,"#r27"+1,"#r28"+1,"#r29"+1,"#r30"+1,"#r31"+1,\ ! 1876: "#x0"+1, "#x1"+1, "#x2"+1, "#x3"+1, "#x4"+1, "#x5"+1, "#x6"+1, "#x7"+1, \ ! 1877: "#x8"+1, "#x9"+1, "#x10"+1,"#x11"+1,"#x12"+1,"#x13"+1,"#x14"+1,"#x15"+1,\ ! 1878: "#x16"+1,"#x17"+1,"#x18"+1,"#x19"+1,"#x20"+1,"#x21"+1,"#x22"+1,"#x23"+1,\ ! 1879: "#x24"+1,"#x25"+1,"#x26"+1,"#x27"+1,"#x28"+1,"#x29"+1,"#x30"+1,"#x31"+1} ! 1880: ! 1881: /* Define additional names for use in asm clobbers and asm declarations. ! 1882: ! 1883: We define the fake Condition Code register as an alias for reg 0 (which ! 1884: is our `condition code' register), so that condition codes can easily ! 1885: be clobbered by an asm. The carry bit in the PSR is now used. */ ! 1886: ! 1887: #define ADDITIONAL_REGISTER_NAMES {"psr", 0, "cc", 0} ! 1888: ! 1889: /* How to renumber registers for dbx and gdb. */ ! 1890: #define DBX_REGISTER_NUMBER(REGNO) (REGNO) ! 1891: ! 1892: /* Tell when to declare ASM names. Override svr4.h to provide this hook. */ ! 1893: #undef DECLARE_ASM_NAME ! 1894: #define DECLARE_ASM_NAME TARGET_SVR4 ! 1895: ! 1896: /* Write the extra assembler code needed to declare a function properly. */ ! 1897: #undef ASM_DECLARE_FUNCTION_NAME ! 1898: #define ASM_DECLARE_FUNCTION_NAME(FILE, NAME, DECL) \ ! 1899: do { \ ! 1900: if (DECLARE_ASM_NAME) \ ! 1901: { \ ! 1902: fprintf (FILE, "\t%s\t ", TYPE_ASM_OP); \ ! 1903: assemble_name (FILE, NAME); \ ! 1904: putc (',', FILE); \ ! 1905: fprintf (FILE, TYPE_OPERAND_FMT, "function"); \ ! 1906: putc ('\n', FILE); \ ! 1907: } \ ! 1908: ASM_OUTPUT_LABEL(FILE, NAME); \ ! 1909: } while (0) ! 1910: ! 1911: /* Write the extra assembler code needed to declare an object properly. */ ! 1912: #undef ASM_DECLARE_OBJECT_NAME ! 1913: #define ASM_DECLARE_OBJECT_NAME(FILE, NAME, DECL) \ ! 1914: do { \ ! 1915: if (DECLARE_ASM_NAME) \ ! 1916: { \ ! 1917: fprintf (FILE, "\t%s\t ", TYPE_ASM_OP); \ ! 1918: assemble_name (FILE, NAME); \ ! 1919: putc (',', FILE); \ ! 1920: fprintf (FILE, TYPE_OPERAND_FMT, "object"); \ ! 1921: putc ('\n', FILE); \ ! 1922: if (!flag_inhibit_size_directive) \ ! 1923: { \ ! 1924: fprintf (FILE, "\t%s\t ", SIZE_ASM_OP); \ ! 1925: assemble_name (FILE, NAME); \ ! 1926: fprintf (FILE, ",%d\n", int_size_in_bytes (TREE_TYPE (decl))); \ ! 1927: } \ ! 1928: } \ ! 1929: ASM_OUTPUT_LABEL(FILE, NAME); \ ! 1930: } while (0) ! 1931: ! 1932: /* This is how to declare the size of a function. */ ! 1933: #undef ASM_DECLARE_FUNCTION_SIZE ! 1934: #define ASM_DECLARE_FUNCTION_SIZE(FILE, FNAME, DECL) \ ! 1935: do { \ ! 1936: if (DECLARE_ASM_NAME) \ ! 1937: { \ ! 1938: if (!flag_inhibit_size_directive) \ ! 1939: { \ ! 1940: char label[256]; \ ! 1941: static int labelno = 0; \ ! 1942: labelno++; \ ! 1943: ASM_GENERATE_INTERNAL_LABEL (label, "Lfe", labelno); \ ! 1944: ASM_OUTPUT_INTERNAL_LABEL (FILE, "Lfe", labelno); \ ! 1945: fprintf (FILE, "\t%s\t ", SIZE_ASM_OP); \ ! 1946: assemble_name (FILE, (FNAME)); \ ! 1947: fprintf (FILE, ",%s-", &label[1]); \ ! 1948: assemble_name (FILE, (FNAME)); \ ! 1949: putc ('\n', FILE); \ ! 1950: } \ ! 1951: } \ ! 1952: } while (0) ! 1953: ! 1954: /* This is how to output the definition of a user-level label named NAME, ! 1955: such as the label on a static function or variable NAME. */ ! 1956: #define ASM_OUTPUT_LABEL(FILE,NAME) \ ! 1957: do { assemble_name (FILE, NAME); fputs (":\n", FILE); } while (0) ! 1958: ! 1959: /* This is how to output a command to make the user-level label named NAME ! 1960: defined for reference from other files. */ ! 1961: #define ASM_GLOBALIZE_LABEL(FILE,NAME) \ ! 1962: do { \ ! 1963: fprintf (FILE, "\t%s\t ", GLOBAL_ASM_OP); \ ! 1964: assemble_name (FILE, NAME); \ ! 1965: putc ('\n', FILE); \ ! 1966: } while (0) ! 1967: ! 1968: /* This is how to output a reference to a user-level label named NAME. ! 1969: Override svr[34].h. */ ! 1970: #undef ASM_OUTPUT_LABELREF ! 1971: #define ASM_OUTPUT_LABELREF(FILE,NAME) \ ! 1972: { \ ! 1973: if (! TARGET_NO_UNDERSCORES && ! VERSION_0300_SYNTAX) \ ! 1974: fputc ('_', FILE); \ ! 1975: fputs (NAME, FILE); \ ! 1976: } ! 1977: ! 1978: /* This is how to output an internal numbered label where ! 1979: PREFIX is the class of label and NUM is the number within the class. ! 1980: For V.4, labels use `.' rather than `@'. */ ! 1981: ! 1982: #undef ASM_OUTPUT_INTERNAL_LABEL ! 1983: #ifdef AS_BUG_DOT_LABELS /* The assembler requires a declaration of local. */ ! 1984: #define ASM_OUTPUT_INTERNAL_LABEL(FILE,PREFIX,NUM) \ ! 1985: fprintf (FILE, VERSION_0300_SYNTAX ? ".%s%d:\n\t%s\t .%s%d\n" : "@%s%d:\n", \ ! 1986: PREFIX, NUM, INTERNAL_ASM_OP, PREFIX, NUM) ! 1987: #else ! 1988: #define ASM_OUTPUT_INTERNAL_LABEL(FILE,PREFIX,NUM) \ ! 1989: fprintf (FILE, VERSION_0300_SYNTAX ? ".%s%d:\n" : "@%s%d:\n", PREFIX, NUM) ! 1990: #endif /* AS_BUG_DOT_LABELS */ ! 1991: ! 1992: /* This is how to store into the string LABEL ! 1993: the symbol_ref name of an internal numbered label where ! 1994: PREFIX is the class of label and NUM is the number within the class. ! 1995: This is suitable for output with `assemble_name'. This must agree ! 1996: with ASM_OUTPUT_INTERNAL_LABEL above, except for being prefixed ! 1997: with an `*'. */ ! 1998: ! 1999: #undef ASM_GENERATE_INTERNAL_LABEL ! 2000: #define ASM_GENERATE_INTERNAL_LABEL(LABEL,PREFIX,NUM) \ ! 2001: sprintf (LABEL, VERSION_0300_SYNTAX ? "*.%s%d" : "*@%s%d", PREFIX, NUM) ! 2002: ! 2003: /* Internal macro to get a single precision floating point value into ! 2004: an int, so we can print it's value in hex. */ ! 2005: #define FLOAT_TO_INT_INTERNAL( FVALUE, IVALUE ) \ ! 2006: { union { \ ! 2007: REAL_VALUE_TYPE d; \ ! 2008: struct { \ ! 2009: unsigned sign : 1; \ ! 2010: unsigned exponent1 : 1; \ ! 2011: unsigned exponent2 : 3; \ ! 2012: unsigned exponent3 : 7; \ ! 2013: unsigned mantissa1 : 20; \ ! 2014: unsigned mantissa2 : 3; \ ! 2015: unsigned mantissa3 : 29; \ ! 2016: } s; \ ! 2017: } _u; \ ! 2018: \ ! 2019: union { \ ! 2020: int i; \ ! 2021: struct { \ ! 2022: unsigned sign : 1; \ ! 2023: unsigned exponent1 : 1; \ ! 2024: unsigned exponent3 : 7; \ ! 2025: unsigned mantissa1 : 20; \ ! 2026: unsigned mantissa2 : 3; \ ! 2027: } s; \ ! 2028: } _u2; \ ! 2029: \ ! 2030: _u.d = REAL_VALUE_TRUNCATE (SFmode, FVALUE); \ ! 2031: _u2.s.sign = _u.s.sign; \ ! 2032: _u2.s.exponent1 = _u.s.exponent1; \ ! 2033: _u2.s.exponent3 = _u.s.exponent3; \ ! 2034: _u2.s.mantissa1 = _u.s.mantissa1; \ ! 2035: _u2.s.mantissa2 = _u.s.mantissa2; \ ! 2036: IVALUE = _u2.i; \ ! 2037: } ! 2038: ! 2039: /* This is how to output an assembler line defining a `double' constant. ! 2040: Use "word" pseudos to avoid printing NaNs, infinity, etc. */ ! 2041: #define ASM_OUTPUT_DOUBLE(FILE,VALUE) \ ! 2042: do { \ ! 2043: union { REAL_VALUE_TYPE d; long l[2]; } x; \ ! 2044: x.d = (VALUE); \ ! 2045: fprintf (FILE, "\t%s\t 0x%.8x, 0x%.8x\n", INT_ASM_OP, \ ! 2046: x.l[0], x.l[1]); \ ! 2047: } while (0) ! 2048: ! 2049: /* This is how to output an assembler line defining a `float' constant. */ ! 2050: #define ASM_OUTPUT_FLOAT(FILE,VALUE) \ ! 2051: do { \ ! 2052: int i; \ ! 2053: FLOAT_TO_INT_INTERNAL (VALUE, i); \ ! 2054: fprintf (FILE, "\t%s\t 0x%.8x\n", INT_ASM_OP, i); \ ! 2055: } while (0) ! 2056: ! 2057: /* Likewise for `int', `short', and `char' constants. */ ! 2058: #define ASM_OUTPUT_INT(FILE,VALUE) \ ! 2059: ( fprintf (FILE, "\t%s\t ", INT_ASM_OP), \ ! 2060: output_addr_const (FILE, (VALUE)), \ ! 2061: fprintf (FILE, "\n")) ! 2062: ! 2063: #define ASM_OUTPUT_SHORT(FILE,VALUE) \ ! 2064: ( fprintf (FILE, "\t%s\t ", SHORT_ASM_OP), \ ! 2065: output_addr_const (FILE, (VALUE)), \ ! 2066: fprintf (FILE, "\n")) ! 2067: ! 2068: #define ASM_OUTPUT_CHAR(FILE,VALUE) \ ! 2069: ( fprintf (FILE, "\t%s\t ", CHAR_ASM_OP), \ ! 2070: output_addr_const (FILE, (VALUE)), \ ! 2071: fprintf (FILE, "\n")) ! 2072: ! 2073: /* This is how to output an assembler line for a numeric constant byte. */ ! 2074: #define ASM_OUTPUT_BYTE(FILE,VALUE) \ ! 2075: fprintf (FILE, "\t%s\t 0x%x\n", CHAR_ASM_OP, (VALUE)) ! 2076: ! 2077: /* The single-byte pseudo-op is the default. Override svr[34].h. */ ! 2078: #undef ASM_BYTE_OP ! 2079: #define ASM_BYTE_OP "byte" ! 2080: #undef ASM_OUTPUT_ASCII ! 2081: #define ASM_OUTPUT_ASCII(FILE, P, SIZE) \ ! 2082: output_ascii (FILE, ASCII_DATA_ASM_OP, 48, P, SIZE) ! 2083: ! 2084: /* Override svr4.h. Change to the readonly data section for a table of ! 2085: addresses. final_scan_insn changes back to the text section. */ ! 2086: #undef ASM_OUTPUT_CASE_LABEL ! 2087: #define ASM_OUTPUT_CASE_LABEL(FILE, PREFIX, NUM, TABLE) \ ! 2088: do { \ ! 2089: if (! CASE_VECTOR_INSNS) \ ! 2090: { \ ! 2091: readonly_data_section (); \ ! 2092: ASM_OUTPUT_ALIGN (FILE, 2); \ ! 2093: } \ ! 2094: ASM_OUTPUT_INTERNAL_LABEL (FILE, PREFIX, NUM); \ ! 2095: } while (0) ! 2096: ! 2097: /* Epilogue for case labels. This jump instruction is called by casesi ! 2098: to transfer to the appropriate branch instruction within the table. ! 2099: The label `@L<n>e' is coined to mark the end of the table. */ ! 2100: #define ASM_OUTPUT_CASE_END(FILE, NUM, TABLE) \ ! 2101: do { \ ! 2102: if (CASE_VECTOR_INSNS) \ ! 2103: { \ ! 2104: char label[256]; \ ! 2105: ASM_GENERATE_INTERNAL_LABEL (label, "L", NUM); \ ! 2106: fprintf (FILE, "%se:\n", &label[1]); \ ! 2107: if (! flag_delayed_branch) \ ! 2108: fprintf (FILE, "\tlda\t %s,%s[%s]\n", reg_names[1], \ ! 2109: reg_names[1], reg_names[m88k_case_index]); \ ! 2110: fprintf (FILE, "\tjmp\t %s\n", reg_names[1]); \ ! 2111: } \ ! 2112: } while (0) ! 2113: ! 2114: /* This is how to output an element of a case-vector that is absolute. */ ! 2115: #define ASM_OUTPUT_ADDR_VEC_ELT(FILE, VALUE) \ ! 2116: do { \ ! 2117: char buffer[256]; \ ! 2118: ASM_GENERATE_INTERNAL_LABEL (buffer, "L", VALUE); \ ! 2119: fprintf (FILE, CASE_VECTOR_INSNS ? "\tbr\t %s\n" : "\tword\t %s\n", \ ! 2120: &buffer[1]); \ ! 2121: } while (0) ! 2122: ! 2123: /* This is how to output an element of a case-vector that is relative. */ ! 2124: #define ASM_OUTPUT_ADDR_DIFF_ELT(FILE, VALUE, REL) \ ! 2125: ASM_OUTPUT_ADDR_VEC_ELT (FILE, VALUE) ! 2126: ! 2127: /* This is how to output an assembler line ! 2128: that says to advance the location counter ! 2129: to a multiple of 2**LOG bytes. */ ! 2130: #define ASM_OUTPUT_ALIGN(FILE,LOG) \ ! 2131: if ((LOG) != 0) \ ! 2132: fprintf (FILE, "\t%s\t %d\n", ALIGN_ASM_OP, 1<<(LOG)) ! 2133: ! 2134: /* On the m88100, align the text address to half a cache boundary when it ! 2135: can only be reached by jumping. Pack code tightly when compiling ! 2136: crtstuff.c. */ ! 2137: #define ASM_OUTPUT_ALIGN_CODE(FILE) \ ! 2138: ASM_OUTPUT_ALIGN (FILE, \ ! 2139: (TARGET_88100 && !flag_inhibit_size_directive ? 3 : 2)) ! 2140: ! 2141: /* Override svr[34].h. */ ! 2142: #undef ASM_OUTPUT_SKIP ! 2143: #define ASM_OUTPUT_SKIP(FILE,SIZE) \ ! 2144: fprintf (FILE, "\t%s\t %u\n", SKIP_ASM_OP, (SIZE)) ! 2145: ! 2146: /* Override svr4.h. */ ! 2147: #undef ASM_OUTPUT_EXTERNAL_LIBCALL ! 2148: ! 2149: /* This says how to output an assembler line to define a global common ! 2150: symbol. Size can be zero for the unusual case of a `struct { int : 0; }'. ! 2151: Override svr[34].h. */ ! 2152: #undef ASM_OUTPUT_COMMON ! 2153: #undef ASM_OUTPUT_ALIGNED_COMMON ! 2154: #define ASM_OUTPUT_COMMON(FILE, NAME, SIZE, ROUNDED) \ ! 2155: ( fprintf ((FILE), "\t%s\t ", \ ! 2156: ((SIZE) ? (SIZE) : 1) <= m88k_gp_threshold ? SCOMM_ASM_OP : COMMON_ASM_OP), \ ! 2157: assemble_name ((FILE), (NAME)), \ ! 2158: fprintf ((FILE), ",%u\n", (SIZE) ? (SIZE) : 1)) ! 2159: ! 2160: /* This says how to output an assembler line to define a local common ! 2161: symbol. Override svr[34].h. */ ! 2162: #undef ASM_OUTPUT_LOCAL ! 2163: #undef ASM_OUTPUT_ALIGNED_LOCAL ! 2164: #define ASM_OUTPUT_LOCAL(FILE, NAME, SIZE, ROUNDED) \ ! 2165: ( fprintf ((FILE), "\t%s\t ", \ ! 2166: ((SIZE) ? (SIZE) : 1) <= m88k_gp_threshold ? SBSS_ASM_OP : BSS_ASM_OP), \ ! 2167: assemble_name ((FILE), (NAME)), \ ! 2168: fprintf ((FILE), ",%u,%d\n", (SIZE) ? (SIZE) : 1, (SIZE) <= 4 ? 4 : 8)) ! 2169: ! 2170: /* Store in OUTPUT a string (made with alloca) containing ! 2171: an assembler-name for a local static variable named NAME. ! 2172: LABELNO is an integer which is different for each call. */ ! 2173: #define ASM_FORMAT_PRIVATE_NAME(OUTPUT, NAME, LABELNO) \ ! 2174: ( (OUTPUT) = (char *) alloca (strlen ((NAME)) + 10), \ ! 2175: sprintf ((OUTPUT), "%s.%d", (NAME), (LABELNO))) ! 2176: ! 2177: /* This is how to output an insn to push a register on the stack. ! 2178: It need not be very fast code. */ ! 2179: #define ASM_OUTPUT_REG_PUSH(FILE,REGNO) \ ! 2180: fprintf (FILE, "\tsubu\t %s,%s,%d\n\tst\t %s,%s,0\n", \ ! 2181: reg_names[STACK_POINTER_REGNUM], \ ! 2182: reg_names[STACK_POINTER_REGNUM], \ ! 2183: (STACK_BOUNDARY / BITS_PER_UNIT), \ ! 2184: reg_names[REGNO], \ ! 2185: reg_names[STACK_POINTER_REGNUM]) ! 2186: ! 2187: /* Length in instructions of the code output by ASM_OUTPUT_REG_PUSH. */ ! 2188: #define REG_PUSH_LENGTH 2 ! 2189: ! 2190: /* This is how to output an insn to pop a register from the stack. */ ! 2191: #define ASM_OUTPUT_REG_POP(FILE,REGNO) \ ! 2192: fprintf (FILE, "\tld\t %s,%s,0\n\taddu\t %s,%s,%d\n", \ ! 2193: reg_names[REGNO], \ ! 2194: reg_names[STACK_POINTER_REGNUM], \ ! 2195: reg_names[STACK_POINTER_REGNUM], \ ! 2196: reg_names[STACK_POINTER_REGNUM], \ ! 2197: (STACK_BOUNDARY / BITS_PER_UNIT)) ! 2198: ! 2199: /* Length in instructions of the code output by ASM_OUTPUT_REG_POP. */ ! 2200: #define REG_POP_LENGTH 2 ! 2201: ! 2202: /* Define the parentheses used to group arithmetic operations ! 2203: in assembler code. */ ! 2204: #define ASM_OPEN_PAREN "(" ! 2205: #define ASM_CLOSE_PAREN ")" ! 2206: ! 2207: /* Define results of standard character escape sequences. */ ! 2208: #define TARGET_BELL 007 ! 2209: #define TARGET_BS 010 ! 2210: #define TARGET_TAB 011 ! 2211: #define TARGET_NEWLINE 012 ! 2212: #define TARGET_VT 013 ! 2213: #define TARGET_FF 014 ! 2214: #define TARGET_CR 015 ! 2215: ! 2216: /* Macros to deal with OCS debug information */ ! 2217: ! 2218: #define OCS_START_PREFIX "Ltb" ! 2219: #define OCS_END_PREFIX "Lte" ! 2220: ! 2221: #define PUT_OCS_FUNCTION_START(FILE) \ ! 2222: { ASM_OUTPUT_INTERNAL_LABEL (FILE, OCS_START_PREFIX, m88k_function_number); } ! 2223: ! 2224: #define PUT_OCS_FUNCTION_END(FILE) \ ! 2225: { ASM_OUTPUT_INTERNAL_LABEL (FILE, OCS_END_PREFIX, m88k_function_number); } ! 2226: ! 2227: /* Macros for debug information */ ! 2228: #define DEBUGGER_AUTO_OFFSET(X) \ ! 2229: (m88k_debugger_offset (X, 0) \ ! 2230: + (TARGET_OCS_FRAME_POSITION ? 0 : m88k_stack_size - m88k_fp_offset)) ! 2231: ! 2232: #define DEBUGGER_ARG_OFFSET(OFFSET, X) \ ! 2233: (m88k_debugger_offset (X, OFFSET) \ ! 2234: + (TARGET_OCS_FRAME_POSITION ? 0 : m88k_stack_size - m88k_fp_offset)) ! 2235: ! 2236: /* Macros to deal with SDB debug information */ ! 2237: #ifdef SDB_DEBUGGING_INFO ! 2238: ! 2239: /* Output structure tag names even when it causes a forward reference. */ ! 2240: #define SDB_ALLOW_FORWARD_REFERENCES ! 2241: ! 2242: /* Print out extra debug information in the assembler file */ ! 2243: #define PUT_SDB_SCL(a) \ ! 2244: do { \ ! 2245: register int s = (a); \ ! 2246: register char *scl; \ ! 2247: switch (s) \ ! 2248: { \ ! 2249: case C_EFCN: scl = "end of function"; break; \ ! 2250: case C_NULL: scl = "NULL storage class"; break; \ ! 2251: case C_AUTO: scl = "automatic"; break; \ ! 2252: case C_EXT: scl = "external"; break; \ ! 2253: case C_STAT: scl = "static"; break; \ ! 2254: case C_REG: scl = "register"; break; \ ! 2255: case C_EXTDEF: scl = "external definition"; break; \ ! 2256: case C_LABEL: scl = "label"; break; \ ! 2257: case C_ULABEL: scl = "undefined label"; break; \ ! 2258: case C_MOS: scl = "structure member"; break; \ ! 2259: case C_ARG: scl = "argument"; break; \ ! 2260: case C_STRTAG: scl = "structure tag"; break; \ ! 2261: case C_MOU: scl = "union member"; break; \ ! 2262: case C_UNTAG: scl = "union tag"; break; \ ! 2263: case C_TPDEF: scl = "typedef"; break; \ ! 2264: case C_USTATIC: scl = "uninitialized static"; break; \ ! 2265: case C_ENTAG: scl = "enumeration tag"; break; \ ! 2266: case C_MOE: scl = "member of enumeration"; break; \ ! 2267: case C_REGPARM: scl = "register parameter"; break; \ ! 2268: case C_FIELD: scl = "bit field"; break; \ ! 2269: case C_BLOCK: scl = "block start/end"; break; \ ! 2270: case C_FCN: scl = "function start/end"; break; \ ! 2271: case C_EOS: scl = "end of structure"; break; \ ! 2272: case C_FILE: scl = "filename"; break; \ ! 2273: case C_LINE: scl = "line"; break; \ ! 2274: case C_ALIAS: scl = "duplicated tag"; break; \ ! 2275: case C_HIDDEN: scl = "hidden"; break; \ ! 2276: default: scl = "unknown"; break; \ ! 2277: } \ ! 2278: \ ! 2279: fprintf(asm_out_file, "\tscl\t %d\t\t\t\t; %s\n", s, scl); \ ! 2280: } while (0) ! 2281: ! 2282: #define PUT_SDB_TYPE(a) \ ! 2283: do { \ ! 2284: register int t = (a); \ ! 2285: static char buffer[100]; \ ! 2286: register char *p = buffer, *q; \ ! 2287: register int typ = t; \ ! 2288: register int i,d; \ ! 2289: \ ! 2290: for (i = 0; i <= 5; i++) \ ! 2291: { \ ! 2292: switch ((typ >> ((i*N_TSHIFT) + N_BTSHFT)) & 03) \ ! 2293: { \ ! 2294: case DT_PTR: \ ! 2295: strcpy (p, "ptr to "); \ ! 2296: p += sizeof("ptr to"); \ ! 2297: break; \ ! 2298: \ ! 2299: case DT_ARY: \ ! 2300: strcpy (p, "array of "); \ ! 2301: p += sizeof("array of"); \ ! 2302: break; \ ! 2303: \ ! 2304: case DT_FCN: \ ! 2305: strcpy (p, "func ret "); \ ! 2306: p += sizeof("func ret"); \ ! 2307: break; \ ! 2308: } \ ! 2309: } \ ! 2310: \ ! 2311: switch (typ & N_BTMASK) \ ! 2312: { \ ! 2313: case T_NULL: q = "<no type>"; break; \ ! 2314: case T_CHAR: q = "char"; break; \ ! 2315: case T_SHORT: q = "short"; break; \ ! 2316: case T_INT: q = "int"; break; \ ! 2317: case T_LONG: q = "long"; break; \ ! 2318: case T_FLOAT: q = "float"; break; \ ! 2319: case T_DOUBLE: q = "double"; break; \ ! 2320: case T_STRUCT: q = "struct"; break; \ ! 2321: case T_UNION: q = "union"; break; \ ! 2322: case T_ENUM: q = "enum"; break; \ ! 2323: case T_MOE: q = "enum member"; break; \ ! 2324: case T_UCHAR: q = "unsigned char"; break; \ ! 2325: case T_USHORT: q = "unsigned short"; break; \ ! 2326: case T_UINT: q = "unsigned int"; break; \ ! 2327: case T_ULONG: q = "unsigned long"; break; \ ! 2328: default: q = "void"; break; \ ! 2329: } \ ! 2330: \ ! 2331: strcpy (p, q); \ ! 2332: fprintf(asm_out_file, "\ttype\t %d\t\t\t\t; %s\n", \ ! 2333: t, buffer); \ ! 2334: } while (0) ! 2335: ! 2336: #define PUT_SDB_INT_VAL(a) \ ! 2337: fprintf (asm_out_file, "\tval\t %d\n", (a)) ! 2338: ! 2339: #define PUT_SDB_VAL(a) \ ! 2340: ( fprintf (asm_out_file, "\tval\t "), \ ! 2341: output_addr_const (asm_out_file, (a)), \ ! 2342: fputc ('\n', asm_out_file)) ! 2343: ! 2344: #define PUT_SDB_DEF(a) \ ! 2345: do { fprintf (asm_out_file, "\tsdef\t "); \ ! 2346: ASM_OUTPUT_LABELREF (asm_out_file, a); \ ! 2347: fputc ('\n', asm_out_file); \ ! 2348: } while (0) ! 2349: ! 2350: #define PUT_SDB_PLAIN_DEF(a) \ ! 2351: fprintf(asm_out_file,"\tsdef\t .%s\n", a) ! 2352: ! 2353: /* Simply and endef now. */ ! 2354: #define PUT_SDB_ENDEF \ ! 2355: fputs("\tendef\n\n", asm_out_file) ! 2356: ! 2357: #define PUT_SDB_SIZE(a) \ ! 2358: fprintf (asm_out_file, "\tsize\t %d\n", (a)) ! 2359: ! 2360: /* Max dimensions to store for debug information (limited by COFF). */ ! 2361: #define SDB_MAX_DIM 6 ! 2362: ! 2363: /* New method for dim operations. */ ! 2364: #define PUT_SDB_START_DIM \ ! 2365: fputs("\tdim\t ", asm_out_file) ! 2366: ! 2367: /* How to end the DIM sequence. */ ! 2368: #define PUT_SDB_LAST_DIM(a) \ ! 2369: fprintf(asm_out_file, "%d\n", a) ! 2370: ! 2371: #define PUT_SDB_TAG(a) \ ! 2372: do { \ ! 2373: fprintf (asm_out_file, "\ttag\t "); \ ! 2374: ASM_OUTPUT_LABELREF (asm_out_file, a); \ ! 2375: fputc ('\n', asm_out_file); \ ! 2376: } while( 0 ) ! 2377: ! 2378: #define PUT_SDB_BLOCK_OR_FUNCTION(NAME, SCL, LINE) \ ! 2379: do { \ ! 2380: fprintf (asm_out_file, "\n\tsdef\t %s\n\tval\t .\n", \ ! 2381: NAME); \ ! 2382: PUT_SDB_SCL( SCL ); \ ! 2383: fprintf (asm_out_file, "\tline\t %d\n\tendef\n\n", \ ! 2384: (LINE)); \ ! 2385: } while (0) ! 2386: ! 2387: #define PUT_SDB_BLOCK_START(LINE) \ ! 2388: PUT_SDB_BLOCK_OR_FUNCTION (".bb", C_BLOCK, (LINE)) ! 2389: ! 2390: #define PUT_SDB_BLOCK_END(LINE) \ ! 2391: PUT_SDB_BLOCK_OR_FUNCTION (".eb", C_BLOCK, (LINE)) ! 2392: ! 2393: #define PUT_SDB_FUNCTION_START(LINE) \ ! 2394: do { \ ! 2395: fprintf (asm_out_file, "\tln\t 1\n"); \ ! 2396: PUT_SDB_BLOCK_OR_FUNCTION (".bf", C_FCN, (LINE)); \ ! 2397: } while (0) ! 2398: ! 2399: #define PUT_SDB_FUNCTION_END(LINE) \ ! 2400: do { \ ! 2401: PUT_SDB_BLOCK_OR_FUNCTION (".ef", C_FCN, (LINE)); \ ! 2402: } while (0) ! 2403: ! 2404: #define PUT_SDB_EPILOGUE_END(NAME) \ ! 2405: do { \ ! 2406: text_section (); \ ! 2407: fprintf (asm_out_file, "\n\tsdef\t "); \ ! 2408: ASM_OUTPUT_LABELREF(asm_out_file, (NAME)); \ ! 2409: fputc('\n', asm_out_file); \ ! 2410: PUT_SDB_SCL( C_EFCN ); \ ! 2411: fprintf (asm_out_file, "\tendef\n\n"); \ ! 2412: } while (0) ! 2413: ! 2414: #define SDB_GENERATE_FAKE(BUFFER, NUMBER) \ ! 2415: sprintf ((BUFFER), ".%dfake", (NUMBER)); ! 2416: ! 2417: #endif /* SDB_DEBUGGING_INFO */ ! 2418: ! 2419: /* Support const and tdesc sections. Generally, a const section will ! 2420: be distinct from the text section whenever we do V.4-like things ! 2421: and so follows DECLARE_ASM_NAME. Note that strings go in text ! 2422: rather than const. Override svr[34].h. */ ! 2423: ! 2424: #undef USE_CONST_SECTION ! 2425: #undef EXTRA_SECTIONS ! 2426: ! 2427: #define USE_CONST_SECTION DECLARE_ASM_NAME ! 2428: ! 2429: #if defined(USING_SVR4_H) ! 2430: ! 2431: #define EXTRA_SECTIONS in_const, in_tdesc, in_sdata, in_ctors, in_dtors ! 2432: #define INIT_SECTION_FUNCTION ! 2433: #define FINI_SECTION_FUNCTION ! 2434: ! 2435: #else ! 2436: #if defined(USING_SVR3_H) ! 2437: ! 2438: #define EXTRA_SECTIONS in_const, in_tdesc, in_sdata, in_ctors, in_dtors, \ ! 2439: in_init, in_fini ! 2440: ! 2441: #else /* m88kluna or other not based on svr[34].h. */ ! 2442: ! 2443: #undef INIT_SECTION_ASM_OP ! 2444: #define EXTRA_SECTIONS in_const, in_tdesc, in_sdata ! 2445: #define CONST_SECTION_FUNCTION \ ! 2446: void \ ! 2447: const_section () \ ! 2448: { \ ! 2449: text_section(); \ ! 2450: } ! 2451: #define CTORS_SECTION_FUNCTION ! 2452: #define DTORS_SECTION_FUNCTION ! 2453: #define INIT_SECTION_FUNCTION ! 2454: #define FINI_SECTION_FUNCTION ! 2455: ! 2456: #endif /* USING_SVR3_H */ ! 2457: #endif /* USING_SVR4_H */ ! 2458: ! 2459: #undef EXTRA_SECTION_FUNCTIONS ! 2460: #define EXTRA_SECTION_FUNCTIONS \ ! 2461: CONST_SECTION_FUNCTION \ ! 2462: \ ! 2463: void \ ! 2464: tdesc_section () \ ! 2465: { \ ! 2466: if (in_section != in_tdesc) \ ! 2467: { \ ! 2468: fprintf (asm_out_file, "%s\n", TDESC_SECTION_ASM_OP); \ ! 2469: in_section = in_tdesc; \ ! 2470: } \ ! 2471: } \ ! 2472: \ ! 2473: void \ ! 2474: sdata_section () \ ! 2475: { \ ! 2476: if (in_section != in_sdata) \ ! 2477: { \ ! 2478: fprintf (asm_out_file, "%s\n", SDATA_SECTION_ASM_OP); \ ! 2479: in_section = in_sdata; \ ! 2480: } \ ! 2481: } \ ! 2482: \ ! 2483: CTORS_SECTION_FUNCTION \ ! 2484: DTORS_SECTION_FUNCTION \ ! 2485: INIT_SECTION_FUNCTION \ ! 2486: FINI_SECTION_FUNCTION ! 2487: ! 2488: /* A C statement or statements to switch to the appropriate ! 2489: section for output of DECL. DECL is either a `VAR_DECL' node ! 2490: or a constant of some sort. RELOC indicates whether forming ! 2491: the initial value of DECL requires link-time relocations. ! 2492: ! 2493: For strings, the section is selected before the segment info is encoded. */ ! 2494: #undef SELECT_SECTION ! 2495: #define SELECT_SECTION(DECL,RELOC) \ ! 2496: { \ ! 2497: if (TREE_CODE (DECL) == STRING_CST) \ ! 2498: { \ ! 2499: if (! flag_writable_strings) \ ! 2500: const_section (); \ ! 2501: else if (m88k_gp_threshold > 0 \ ! 2502: && TREE_STRING_LENGTH (DECL) <= m88k_gp_threshold) \ ! 2503: sdata_section (); \ ! 2504: else \ ! 2505: data_section (); \ ! 2506: } \ ! 2507: else if (TREE_CODE (DECL) == VAR_DECL) \ ! 2508: { \ ! 2509: if (SYMBOL_REF_FLAG (XEXP (DECL_RTL (DECL), 0))) \ ! 2510: sdata_section (); \ ! 2511: else if ((flag_pic && RELOC) \ ! 2512: || !TREE_READONLY (DECL) || TREE_SIDE_EFFECTS (DECL)) \ ! 2513: data_section (); \ ! 2514: else \ ! 2515: const_section (); \ ! 2516: } \ ! 2517: else \ ! 2518: const_section (); \ ! 2519: } ! 2520: ! 2521: /* Jump tables consist of branch instructions and should be output in ! 2522: the text section. When we use a table of addresses, we explicitly ! 2523: change to the readonly data section. */ ! 2524: #define JUMP_TABLES_IN_TEXT_SECTION 1 ! 2525: ! 2526: /* Define this macro if references to a symbol must be treated differently ! 2527: depending on something about the variable or function named by the ! 2528: symbol (such as what section it is in). ! 2529: ! 2530: The macro definition, if any, is executed immediately after the rtl for ! 2531: DECL has been created and stored in `DECL_RTL (DECL)'. The value of the ! 2532: rtl will be a `mem' whose address is a `symbol_ref'. ! 2533: ! 2534: For the m88k, determine if the item should go in the global pool. */ ! 2535: #define ENCODE_SECTION_INFO(DECL) \ ! 2536: do { \ ! 2537: if (m88k_gp_threshold > 0) \ ! 2538: if (TREE_CODE (DECL) == VAR_DECL) \ ! 2539: { \ ! 2540: if (!TREE_READONLY (DECL) || TREE_SIDE_EFFECTS (DECL)) \ ! 2541: { \ ! 2542: int size = int_size_in_bytes (TREE_TYPE (DECL)); \ ! 2543: \ ! 2544: if (size > 0 && size <= m88k_gp_threshold) \ ! 2545: SYMBOL_REF_FLAG (XEXP (DECL_RTL (DECL), 0)) = 1; \ ! 2546: } \ ! 2547: } \ ! 2548: else if (TREE_CODE (DECL) == STRING_CST \ ! 2549: && flag_writable_strings \ ! 2550: && TREE_STRING_LENGTH (DECL) <= m88k_gp_threshold) \ ! 2551: SYMBOL_REF_FLAG (XEXP (TREE_CST_RTL (DECL), 0)) = 1; \ ! 2552: } while (0) ! 2553: ! 2554: /* Print operand X (an rtx) in assembler syntax to file FILE. ! 2555: CODE is a letter or dot (`z' in `%z0') or 0 if no letter was specified. ! 2556: For `%' followed by punctuation, CODE is the punctuation and X is null. */ ! 2557: #define PRINT_OPERAND_PUNCT_VALID_P(c) \ ! 2558: ((c) == '#' || (c) == '.' || (c) == '!' || (c) == '*' || (c) == ';') ! 2559: ! 2560: #define PRINT_OPERAND(FILE, X, CODE) print_operand (FILE, X, CODE) ! 2561: ! 2562: /* Print a memory address as an operand to reference that memory location. */ ! 2563: #define PRINT_OPERAND_ADDRESS(FILE, ADDR) print_operand_address (FILE, ADDR)
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