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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: Currently supported 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: ! 87: extern int m88k_gp_threshold; ! 88: extern int m88k_prologue_done; ! 89: extern int m88k_function_number; ! 90: extern int m88k_fp_offset; ! 91: extern int m88k_stack_size; ! 92: extern int m88k_case_index; ! 93: ! 94: extern struct rtx_def *m88k_compare_reg; ! 95: extern struct rtx_def *m88k_compare_op0; ! 96: extern struct rtx_def *m88k_compare_op1; ! 97: ! 98: extern int null_epilogue (); ! 99: extern int integer_ok_for_set (); ! 100: extern int m88k_debugger_offset (); ! 101: extern void m88k_handle_pragma_token (); ! 102: ! 103: extern void emit_bcnd (); ! 104: extern void expand_block_move (); ! 105: extern void check_float_value (); ! 106: extern void m88k_layout_frame (); ! 107: extern void m88k_output_prologue (); ! 108: extern void m88k_output_epilogue (); ! 109: extern void output_function_profiler (); ! 110: extern void output_function_block_profiler (); ! 111: extern void output_block_profiler (); ! 112: extern void output_file_start (); ! 113: extern void output_ascii (); ! 114: extern void output_label (); ! 115: extern void print_operand (); ! 116: extern void print_operand_address (); ! 117: ! 118: extern char *output_load_const_int (); ! 119: extern char *output_load_const_float (); ! 120: extern char *output_load_const_double (); ! 121: extern char *output_load_const_dimode (); ! 122: extern char *output_and (); ! 123: extern char *output_ior (); ! 124: extern char *output_xor (); ! 125: extern char *output_call (); ! 126: ! 127: extern struct rtx_def *emit_test (); ! 128: extern struct rtx_def *legitimize_address (); ! 129: extern struct rtx_def *legitimize_operand (); ! 130: extern struct rtx_def *m88k_function_arg (); ! 131: extern struct rtx_def *m88k_builtin_saveregs (); ! 132: ! 133: extern enum m88k_instruction classify_integer (); ! 134: ! 135: /* external variables defined elsewhere in the compiler */ ! 136: ! 137: extern int target_flags; /* -m compiler switches */ ! 138: extern int frame_pointer_needed; /* current function has a FP */ ! 139: extern int current_function_pretend_args_size; /* args size without ... */ ! 140: extern int flag_delayed_branch; /* -fdelayed-branch */ ! 141: extern int flag_pic; /* -fpic */ ! 142: extern char * reg_names[]; ! 143: ! 144: /* Specify the default monitors. The meaning of these values can ! 145: be obtained by doing "grep MONITOR_GCC *m88k*". Generally, the ! 146: values downward from 0x8000 are tests that will soon go away. ! 147: values upward from 0x1 are generally useful tests that will remain. */ ! 148: ! 149: #ifndef MONITOR_GCC ! 150: #define MONITOR_GCC 0 ! 151: #endif ! 152: ! 153: /*** Controlling the Compilation Driver, `gcc' ***/ ! 154: ! 155: /* Some machines may desire to change what optimizations are performed for ! 156: various optimization levels. This macro, if defined, is executed once ! 157: just after the optimization level is determined and before the remainder ! 158: of the command options have been parsed. Values set in this macro are ! 159: used as the default values for the other command line options. ! 160: ! 161: LEVEL is the optimization level specified; 2 if -O2 is specified, ! 162: 1 if -O is specified, and 0 if neither is specified. */ ! 163: ! 164: /* This macro used to store 0 in flag_signed_bitfields. ! 165: Not only is that misuse of this macro; the whole idea is wrong. ! 166: ! 167: The GNU C dialect makes bitfields signed by default, ! 168: regardless of machine type. Making any machine inconsistent in this ! 169: regard is bad for portability. ! 170: ! 171: I chose to make bitfields signed by default because this is consistent ! 172: with the way ordinary variables are handled: `int' equals `signed int'. ! 173: If there is a good reason to prefer making bitfields unsigned by default, ! 174: it cannot have anything to do with the choice of machine. ! 175: If the reason is good enough, we should change the convention for all machines. ! 176: ! 177: -- rms, 20 July 1991. */ ! 178: ! 179: #define OPTIMIZATION_OPTIONS(LEVEL) \ ! 180: do { \ ! 181: if (LEVEL) \ ! 182: { \ ! 183: flag_omit_frame_pointer = 1; \ ! 184: } \ ! 185: } while (0) ! 186: ! 187: /* LIB_SPEC, LINK_SPEC, and STARTFILE_SPEC defined in svr3.h. ! 188: ASM_SPEC, ASM_FINAL_SPEC, LIB_SPEC, LINK_SPEC, and STARTFILE_SPEC redefined ! 189: in svr4.h. ! 190: CPP_SPEC, ASM_SPEC, ASM_FINAL_SPEC, LIB_SPEC, LINK_SPEC, and ! 191: STARTFILE_SPEC redefined in m88kdgux.h. */ ! 192: ! 193: /*** Run-time Target Specification ***/ ! 194: ! 195: /* Names to predefine in the preprocessor for this target machine. ! 196: Redefined in m88kv3.h, m88kv4.h, m88kdgux.h, and m88kluna.h. */ ! 197: #define CPP_PREDEFINES "-Dm88000 -Dm88k -Dunix -D__CLASSIFY_TYPE__=2" ! 198: ! 199: #define TARGET_VERSION fprintf (stderr, " (%s%s)", \ ! 200: VERSION_INFO1, VERSION_INFO2) ! 201: ! 202: /* Print subsidiary information on the compiler version in use. ! 203: Redefined in m88kv4.h, and m88kluna.h. */ ! 204: #define VERSION_INFO1 "88open OCS/BCS, " ! 205: #define VERSION_INFO2 "12 Feb 1992" ! 206: #define VERSION_STRING version_string ! 207: #define TM_SCCS_ID "@(#)m88k.h 1.96.5.5 12 Feb 1992 12:59:25" ! 208: ! 209: /* Run-time compilation parameters selecting different hardware subsets. */ ! 210: ! 211: /* Macro to define tables used to set the flags. ! 212: This is a list in braces of pairs in braces, ! 213: each pair being { "NAME", VALUE } ! 214: where VALUE is the bits to set or minus the bits to clear. ! 215: An empty string NAME is used to identify the default VALUE. */ ! 216: ! 217: #define MASK_88100 0x00000001 /* Target m88100 */ ! 218: #define MASK_88110 0x00000002 /* Target m88110 */ ! 219: #define MASK_OCS_DEBUG_INFO 0x00000004 /* Emit .tdesc info */ ! 220: #define MASK_OCS_FRAME_POSITION 0x00000008 /* Debug frame = CFA, not r30 */ ! 221: #define MASK_SVR4 0x00000010 /* Target is AT&T System V.4 */ ! 222: #define MASK_VERSION_0300 0x00000020 /* Use version 03.00 syntax */ ! 223: #define MASK_NO_UNDERSCORES 0x00000040 /* Don't emit a leading `_' */ ! 224: #define MASK_BIG_PIC 0x00000080 /* PIC with large got-rel's -fPIC */ ! 225: #define MASK_TRAP_LARGE_SHIFT 0x00000100 /* Trap if shift not <= 31 */ ! 226: #define MASK_HANDLE_LARGE_SHIFT 0x00000200 /* Handle shift count >= 32 */ ! 227: #define MASK_CHECK_ZERO_DIV 0x00000400 /* Check for int div. by 0 */ ! 228: #define MASK_USE_DIV 0x00000800 /* No signed div. checks */ ! 229: #define MASK_IDENTIFY_REVISION 0x00001000 /* Emit ident, with GCC rev */ ! 230: #define MASK_WARN_PASS_STRUCT 0x00002000 /* Warn about passed structs */ ! 231: #define MASK_OPTIMIZE_ARG_AREA 0x00004000 /* Save stack space */ ! 232: ! 233: #define MASK_88000 (MASK_88100 | MASK_88110) ! 234: #define MASK_EITHER_LARGE_SHIFT (MASK_TRAP_LARGE_SHIFT | \ ! 235: MASK_HANDLE_LARGE_SHIFT) ! 236: ! 237: #define TARGET_88100 ((target_flags & MASK_88000) == MASK_88100) ! 238: #define TARGET_88110 ((target_flags & MASK_88000) == MASK_88110) ! 239: #define TARGET_88000 ((target_flags & MASK_88000) == MASK_88000) ! 240: ! 241: #define TARGET_OCS_DEBUG_INFO (target_flags & MASK_OCS_DEBUG_INFO) ! 242: #define TARGET_OCS_FRAME_POSITION (target_flags & MASK_OCS_FRAME_POSITION) ! 243: #define TARGET_SVR4 (target_flags & MASK_SVR4) ! 244: #define TARGET_VERSION_0300 (target_flags & MASK_VERSION_0300) ! 245: #define TARGET_NO_UNDERSCORES (target_flags & MASK_NO_UNDERSCORES) ! 246: #define TARGET_BIG_PIC (target_flags & MASK_BIG_PIC) ! 247: #define TARGET_TRAP_LARGE_SHIFT (target_flags & MASK_TRAP_LARGE_SHIFT) ! 248: #define TARGET_HANDLE_LARGE_SHIFT (target_flags & MASK_HANDLE_LARGE_SHIFT) ! 249: #define TARGET_CHECK_ZERO_DIV (target_flags & MASK_CHECK_ZERO_DIV) ! 250: #define TARGET_USE_DIV (target_flags & MASK_USE_DIV) ! 251: #define TARGET_IDENTIFY_REVISION (target_flags & MASK_IDENTIFY_REVISION) ! 252: #define TARGET_WARN_PASS_STRUCT (target_flags & MASK_WARN_PASS_STRUCT) ! 253: #define TARGET_OPTIMIZE_ARG_AREA (target_flags & MASK_OPTIMIZE_ARG_AREA) ! 254: ! 255: #define TARGET_EITHER_LARGE_SHIFT (target_flags & MASK_EITHER_LARGE_SHIFT) ! 256: ! 257: /* Redefined in m88kv3.h,m88kv4.h, and m88kdgux.h. */ ! 258: #define TARGET_DEFAULT (MASK_CHECK_ZERO_DIV) ! 259: #define CPU_DEFAULT MASK_88100 ! 260: ! 261: #define TARGET_SWITCHES \ ! 262: { \ ! 263: { "88110", MASK_88110 }, \ ! 264: { "88100", MASK_88100 }, \ ! 265: { "88000", MASK_88000 }, \ ! 266: { "ocs-debug-info", MASK_OCS_DEBUG_INFO }, \ ! 267: { "no-ocs-debug-info", -MASK_OCS_DEBUG_INFO }, \ ! 268: { "ocs-frame-position", MASK_OCS_FRAME_POSITION }, \ ! 269: { "no-ocs-frame-position", -MASK_OCS_FRAME_POSITION }, \ ! 270: { "svr4", MASK_SVR4 }, \ ! 271: { "svr3", -MASK_SVR4 }, \ ! 272: { "version-03.00", MASK_VERSION_0300 }, \ ! 273: { "no-underscores", MASK_NO_UNDERSCORES }, \ ! 274: { "big-pic", MASK_BIG_PIC }, \ ! 275: { "trap-large-shift", MASK_TRAP_LARGE_SHIFT }, \ ! 276: { "handle-large-shift", MASK_HANDLE_LARGE_SHIFT }, \ ! 277: { "check-zero-division", MASK_CHECK_ZERO_DIV }, \ ! 278: { "no-check-zero-division", -MASK_CHECK_ZERO_DIV }, \ ! 279: { "use-div-instruction", MASK_USE_DIV }, \ ! 280: { "identify-revision", MASK_IDENTIFY_REVISION }, \ ! 281: { "warn-passed-structs", MASK_WARN_PASS_STRUCT }, \ ! 282: { "optimize-arg-area", MASK_OPTIMIZE_ARG_AREA }, \ ! 283: { "no-optimize-arg-area", -MASK_OPTIMIZE_ARG_AREA }, \ ! 284: SUBTARGET_SWITCHES \ ! 285: /* Default switches */ \ ! 286: { "", TARGET_DEFAULT }, \ ! 287: } ! 288: ! 289: /* Redefined in m88kdgux.h. */ ! 290: #define SUBTARGET_SWITCHES ! 291: ! 292: /* Macro to define table for command options with values. */ ! 293: ! 294: #define TARGET_OPTIONS { { "short-data-", &m88k_short_data } } ! 295: ! 296: /* Do any checking or such that is needed after processing the -m switches. */ ! 297: ! 298: #define OVERRIDE_OPTIONS \ ! 299: do { \ ! 300: register int i; \ ! 301: \ ! 302: if ((target_flags & MASK_88000) == 0) \ ! 303: target_flags |= CPU_DEFAULT; \ ! 304: \ ! 305: if (TARGET_BIG_PIC) \ ! 306: flag_pic = 2; \ ! 307: \ ! 308: if ((target_flags & MASK_EITHER_LARGE_SHIFT) == MASK_EITHER_LARGE_SHIFT) \ ! 309: error ("-mtrap-large-shift and -mhandle-large-shift are incompatible");\ ! 310: \ ! 311: if (VERSION_0300_SYNTAX) \ ! 312: { \ ! 313: for (i = 0; i < FIRST_PSEUDO_REGISTER; i++) \ ! 314: reg_names[i]--; \ ! 315: m88k_pound_sign = "#"; \ ! 316: } \ ! 317: \ ! 318: if (m88k_short_data) \ ! 319: { \ ! 320: char *p = m88k_short_data; \ ! 321: while (*p) \ ! 322: if (*p >= '0' && *p <= '9') \ ! 323: p++; \ ! 324: else \ ! 325: { \ ! 326: error ("Invalid option `-mshort-data-%s'", m88k_short_data); \ ! 327: break; \ ! 328: } \ ! 329: m88k_gp_threshold = atoi (m88k_short_data); \ ! 330: if (flag_pic) \ ! 331: error ("-mshort-data-%s and PIC are incompatible", m88k_short_data); \ ! 332: } \ ! 333: } while (0) ! 334: ! 335: /*** Storage Layout ***/ ! 336: ! 337: /* Sizes in bits of the various types. */ ! 338: #define CHAR_TYPE_SIZE 8 ! 339: #define SHORT_TYPE_SIZE 16 ! 340: #define INT_TYPE_SIZE 32 ! 341: #define LONG_TYPE_SIZE 32 ! 342: #define LONG_LONG_TYPE_SIZE 64 ! 343: #define FLOAT_TYPE_SIZE 32 ! 344: #define DOUBLE_TYPE_SIZE 64 ! 345: #define LONG_DOUBLE_TYPE_SIZE 64 ! 346: ! 347: /* Define this if most significant bit is lowest numbered ! 348: in instructions that operate on numbered bit-fields. ! 349: Somewhat arbitrary. It matches the bit field patterns. */ ! 350: #define BITS_BIG_ENDIAN 1 ! 351: ! 352: /* Define this if most significant byte of a word is the lowest numbered. ! 353: That is true on the m88000. */ ! 354: #define BYTES_BIG_ENDIAN 1 ! 355: ! 356: /* Define this if most significant word of a multiword number is the lowest ! 357: numbered. ! 358: For the m88000 we can decide arbitrarily since there are no machine ! 359: instructions for them. */ ! 360: #define WORDS_BIG_ENDIAN 1 ! 361: ! 362: /* Number of bits in an addressible storage unit */ ! 363: #define BITS_PER_UNIT 8 ! 364: ! 365: /* Width in bits of a "word", which is the contents of a machine register. ! 366: Note that this is not necessarily the width of data type `int'; ! 367: if using 16-bit ints on a 68000, this would still be 32. ! 368: But on a machine with 16-bit registers, this would be 16. */ ! 369: #define BITS_PER_WORD 32 ! 370: ! 371: /* Width of a word, in units (bytes). */ ! 372: #define UNITS_PER_WORD 4 ! 373: ! 374: /* Width in bits of a pointer. ! 375: See also the macro `Pmode' defined below. */ ! 376: #define POINTER_SIZE 32 ! 377: ! 378: /* Allocation boundary (in *bits*) for storing arguments in argument list. */ ! 379: #define PARM_BOUNDARY 32 ! 380: ! 381: /* Largest alignment for stack parameters (if greater than PARM_BOUNDARY). */ ! 382: #define MAX_PARM_BOUNDARY 64 ! 383: ! 384: /* Boundary (in *bits*) on which stack pointer should be aligned. */ ! 385: #define STACK_BOUNDARY 128 ! 386: ! 387: /* Allocation boundary (in *bits*) for the code of a function. ! 388: Pack code tightly when compiling crtstuff.c. */ ! 389: #define FUNCTION_BOUNDARY (flag_inhibit_size_directive ? 32 : 128) ! 390: ! 391: /* No data type wants to be aligned rounder than this. */ ! 392: #define BIGGEST_ALIGNMENT 64 ! 393: ! 394: /* Make strings word-aligned so strcpy from constants will be faster. */ ! 395: #define CONSTANT_ALIGNMENT(EXP, ALIGN) \ ! 396: (TREE_CODE (EXP) == STRING_CST \ ! 397: && (ALIGN) < BITS_PER_WORD ? BITS_PER_WORD : (ALIGN)) ! 398: ! 399: /* Make arrays of chars word-aligned for the same reasons. */ ! 400: #define DATA_ALIGNMENT(TYPE, ALIGN) \ ! 401: (TREE_CODE (TYPE) == ARRAY_TYPE \ ! 402: && TYPE_MODE (TREE_TYPE (TYPE)) == QImode \ ! 403: && (ALIGN) < BITS_PER_WORD ? BITS_PER_WORD : (ALIGN)) ! 404: ! 405: /* Alignment of field after `int : 0' in a structure. ! 406: Ignored with PCC_BITFIELD_TYPE_MATTERS. */ ! 407: /* #define EMPTY_FIELD_BOUNDARY 8 */ ! 408: ! 409: /* Every structure's size must be a multiple of this. */ ! 410: #define STRUCTURE_SIZE_BOUNDARY 8 ! 411: ! 412: /* Define this if move instructions will actually fail to work ! 413: when given unaligned data. */ ! 414: #define STRICT_ALIGNMENT ! 415: ! 416: /* A bitfield declared as `int' forces `int' alignment for the struct. */ ! 417: #define PCC_BITFIELD_TYPE_MATTERS 1 ! 418: ! 419: /* Maximum size (in bits) to use for the largest integral type that ! 420: replaces a BLKmode type. */ ! 421: /* #define MAX_FIXED_MODE_SIZE 0 */ ! 422: ! 423: /* Report errors on floating point, if we are given NaN's, or such. Leave ! 424: the number as is, though, since we output the number in hex, and the ! 425: assemble won't choak on it. */ ! 426: #define CHECK_FLOAT_VALUE(MODE,VALUE) check_float_value (MODE, VALUE) ! 427: ! 428: /* A code distinguishing the floating point format of the target machine. */ ! 429: /* #define TARGET_FLOAT_FORMAT IEEE_FLOAT_FORMAT */ ! 430: ! 431: /*** Register Usage ***/ ! 432: ! 433: /* Number of actual hardware registers. ! 434: The hardware registers are assigned numbers for the compiler ! 435: from 0 to just below FIRST_PSEUDO_REGISTER. ! 436: All registers that the compiler knows about must be given numbers, ! 437: even those that are not normally considered general registers. ! 438: ! 439: The m88100 has 32 fullword registers. ! 440: ! 441: The pseudo argument pointer is said to be register 0. This prohibits ! 442: the use of r0 as a general register and causes no trouble. ! 443: Using register 0 is useful, in that it keeps the number of ! 444: registers down to 32, and GNU can use a long as a bitmask ! 445: for the registers. */ ! 446: #define FIRST_PSEUDO_REGISTER 32 ! 447: ! 448: /* 1 for registers that have pervasive standard uses ! 449: and are not available for the register allocator. ! 450: Registers 14-25 are expected to be preserved across ! 451: function calls. ! 452: ! 453: On the 88000, these are: ! 454: Reg 0 = Pseudo argument pointer (hardware fixed to 0). ! 455: Reg 1 = Subroutine return pointer (hardware). ! 456: Reg 2-9 = Parameter registers (OCS). ! 457: Reg 10 = OCS reserved temporary. ! 458: Reg 11 = Static link if needed [OCS reserved temporary]. ! 459: Reg 12 = Address of structure return (OCS). ! 460: Reg 13 = OCS reserved temporary. ! 461: Reg 14-25 = Preserved register set. ! 462: Reg 26-29 = Reserved by OCS and ABI. ! 463: Reg 30 = Frame pointer (Common use). ! 464: Reg 31 = Stack pointer. */ ! 465: ! 466: #define FIXED_REGISTERS \ ! 467: {1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, \ ! 468: 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1} ! 469: ! 470: /* 1 for registers not available across function calls. ! 471: These must include the FIXED_REGISTERS and also any ! 472: registers that can be used without being saved. ! 473: The latter must include the registers where values are returned ! 474: and the register where structure-value addresses are passed. ! 475: Aside from that, you can include as many other registers as you like. */ ! 476: ! 477: #define CALL_USED_REGISTERS \ ! 478: {1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, \ ! 479: 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1} ! 480: ! 481: /* Macro to conditionally modify fixed_regs/call_used_regs. */ ! 482: #define CONDITIONAL_REGISTER_USAGE \ ! 483: { \ ! 484: if (flag_pic) \ ! 485: { \ ! 486: fixed_regs[PIC_OFFSET_TABLE_REGNUM] = 1; \ ! 487: call_used_regs[PIC_OFFSET_TABLE_REGNUM] = 1; \ ! 488: global_regs[PIC_OFFSET_TABLE_REGNUM] = 1; \ ! 489: } \ ! 490: } ! 491: ! 492: /* These interfaces that don't apply to the m88000. */ ! 493: /* OVERLAPPING_REGNO_P(REGNO) 0 */ ! 494: /* INSN_CLOBBERS_REGNO_P(INSN, REGNO) 0 */ ! 495: /* PRESERVE_DEATH_INFO_REGNO_P(REGNO) 0 */ ! 496: ! 497: /* Return number of consecutive hard regs needed starting at reg REGNO ! 498: to hold something of mode MODE. ! 499: This is ordinarily the length in words of a value of mode MODE ! 500: but can be less for certain modes in special long registers. ! 501: ! 502: On the m88000, ordinary registers hold 32 bits worth; ! 503: a single floating point register is always enough for ! 504: anything that can be stored in them at all. */ ! 505: #define HARD_REGNO_NREGS(REGNO, MODE) \ ! 506: ((GET_MODE_SIZE (MODE) + UNITS_PER_WORD - 1) / UNITS_PER_WORD) ! 507: ! 508: /* Value is 1 if hard register REGNO can hold a value of machine-mode MODE. ! 509: ! 510: For double integers, we never put the value into an odd register so that ! 511: the operators don't run into the situation where the high part of one of ! 512: the inputs is the low part of the result register (it's ok if the output ! 513: registers are the same as the input registers. */ ! 514: #define HARD_REGNO_MODE_OK(REGNO, MODE) \ ! 515: (((MODE) != DImode && (MODE) != DFmode && (MODE) != DCmode) || \ ! 516: ((REGNO) & 1) == 0) ! 517: ! 518: /* Value is 1 if it is a good idea to tie two pseudo registers ! 519: when one has mode MODE1 and one has mode MODE2. ! 520: If HARD_REGNO_MODE_OK could produce different values for MODE1 and MODE2, ! 521: for any hard reg, then this must be 0 for correct output. */ ! 522: #define MODES_TIEABLE_P(MODE1, MODE2) \ ! 523: (((MODE1) == DFmode || (MODE1) == DCmode || (MODE1) == DImode) \ ! 524: == ((MODE2) == DFmode || (MODE2) == DCmode || (MODE2) == DImode)) ! 525: ! 526: /* Specify the registers used for certain standard purposes. ! 527: The values of these macros are register numbers. */ ! 528: ! 529: /* the m88000 pc isn't overloaded on a register that the compiler knows about. */ ! 530: /* #define PC_REGNUM */ ! 531: ! 532: /* Register to use for pushing function arguments. */ ! 533: #define STACK_POINTER_REGNUM 31 ! 534: ! 535: /* Base register for access to local variables of the function. */ ! 536: #define FRAME_POINTER_REGNUM 30 ! 537: ! 538: /* Base register for access to arguments of the function. */ ! 539: #define ARG_POINTER_REGNUM 0 ! 540: ! 541: /* Register used in cases where a temporary is known to be safe to use. */ ! 542: #define TEMP_REGNUM 10 ! 543: ! 544: /* Register in which static-chain is passed to a function. */ ! 545: #define STATIC_CHAIN_REGNUM 11 ! 546: ! 547: /* Register in which address to store a structure value ! 548: is passed to a function. */ ! 549: #define STRUCT_VALUE_REGNUM 12 ! 550: ! 551: /* Register to hold the addressing base for position independent ! 552: code access to data items. */ ! 553: #define PIC_OFFSET_TABLE_REGNUM 25 ! 554: ! 555: /* Order in which registers are preferred (most to least). Use temp ! 556: registers, then param registers top down. Preserve registers are ! 557: top down to maximize use of double memory ops for register save. ! 558: The 88open reserved registers (26-29) may commonly be used in most ! 559: environments with the -fcall-used- or -fcall-saved- options. */ ! 560: #define REG_ALLOC_ORDER \ ! 561: {13, 12, 11, 10, 29, 28, 27, 26, \ ! 562: 1, 9, 8, 7, 6, 5, 4, 3, \ ! 563: 2, 25, 24, 23, 22, 21, 20, 19, \ ! 564: 18, 17, 16, 15, 14, 30, 31, 0} ! 565: ! 566: /*** Register Classes ***/ ! 567: ! 568: /* Define the classes of registers for register constraints in the ! 569: machine description. Also define ranges of constants. ! 570: ! 571: One of the classes must always be named ALL_REGS and include all hard regs. ! 572: If there is more than one class, another class must be named NO_REGS ! 573: and contain no registers. ! 574: ! 575: The name GENERAL_REGS must be the name of a class (or an alias for ! 576: another name such as ALL_REGS). This is the class of registers ! 577: that is allowed by "g" or "r" in a register constraint. ! 578: Also, registers outside this class are allocated only when ! 579: instructions express preferences for them. ! 580: ! 581: The classes must be numbered in nondecreasing order; that is, ! 582: a larger-numbered class must never be contained completely ! 583: in a smaller-numbered class. ! 584: ! 585: For any two classes, it is very desirable that there be another ! 586: class that represents their union. */ ! 587: ! 588: /* The m88100 hardware has one kind of register. However, we denote ! 589: the arg pointer as a separate class. */ ! 590: ! 591: enum reg_class { NO_REGS, AP_REG, GENERAL_REGS, ALL_REGS, LIM_REG_CLASSES }; ! 592: ! 593: #define N_REG_CLASSES (int) LIM_REG_CLASSES ! 594: ! 595: /* Give names of register classes as strings for dump file. */ ! 596: #define REG_CLASS_NAMES {"NO_REGS", "AP_REG", "GENERAL_REGS", "ALL_REGS" } ! 597: ! 598: /* Define which registers fit in which classes. ! 599: This is an initializer for a vector of HARD_REG_SET ! 600: of length N_REG_CLASSES. */ ! 601: #define REG_CLASS_CONTENTS {0, 1, -2, -1} ! 602: ! 603: /* The same information, inverted: ! 604: Return the class number of the smallest class containing ! 605: reg number REGNO. This could be a conditional expression ! 606: or could index an array. */ ! 607: #define REGNO_REG_CLASS(REGNO) ((REGNO) ? GENERAL_REGS : AP_REG) ! 608: ! 609: /* The class value for index registers, and the one for base regs. */ ! 610: #define BASE_REG_CLASS ALL_REGS ! 611: #define INDEX_REG_CLASS GENERAL_REGS ! 612: ! 613: /* Get reg_class from a letter such as appears in the machine description. */ ! 614: ! 615: #define REG_CLASS_FROM_LETTER(C) NO_REGS ! 616: ! 617: /* Macros to check register numbers against specific register classes. ! 618: These assume that REGNO is a hard or pseudo reg number. ! 619: They give nonzero only if REGNO is a hard reg of the suitable class ! 620: or a pseudo reg currently allocated to a suitable hard reg. ! 621: Since they use reg_renumber, they are safe only once reg_renumber ! 622: has been allocated, which happens in local-alloc.c. */ ! 623: #define REGNO_OK_FOR_BASE_P(REGNO) \ ! 624: ((REGNO) < FIRST_PSEUDO_REGISTER || \ ! 625: (unsigned) reg_renumber[REGNO] < FIRST_PSEUDO_REGISTER) ! 626: #define REGNO_OK_FOR_INDEX_P(REGNO) \ ! 627: (((REGNO) && (REGNO) < FIRST_PSEUDO_REGISTER) || \ ! 628: (unsigned) reg_renumber[REGNO] < FIRST_PSEUDO_REGISTER) ! 629: ! 630: /* Given an rtx X being reloaded into a reg required to be ! 631: in class CLASS, return the class of reg to actually use. ! 632: In general this is just CLASS; but on some machines ! 633: in some cases it is preferable to use a more restrictive class. ! 634: Double constants should be in a register iff they can be made cheaply. */ ! 635: #define PREFERRED_RELOAD_CLASS(X,CLASS) (CLASS) ! 636: ! 637: /* Return the maximum number of consecutive registers ! 638: needed to represent mode MODE in a register of class CLASS. */ ! 639: #define CLASS_MAX_NREGS(CLASS, MODE) \ ! 640: ((GET_MODE_SIZE (MODE) + UNITS_PER_WORD - 1) / UNITS_PER_WORD) ! 641: ! 642: /* Letters in the range `I' through `P' in a register constraint string can ! 643: be used to stand for particular ranges of immediate operands. The C ! 644: expression is true iff C is a known letter and VALUE is appropriate for ! 645: that letter. ! 646: ! 647: For the m88000, the following contraints are used: ! 648: `I' requires a non-negative 16-bit value. ! 649: `J' requires a non-positive 16-bit value. ! 650: `K' is unused. ! 651: `L' requires a constant with only the upper 16-bits set. ! 652: `M' requires constant values that can be formed with `set'. ! 653: `N' requires a negative value. ! 654: `O' requires zero. ! 655: `P' requires a non-negative value. */ ! 656: ! 657: /* Quick tests for certain values. */ ! 658: #define SMALL_INT(X) (SMALL_INTVAL (INTVAL (X))) ! 659: #define SMALL_INTVAL(I) ((unsigned) (I) < 0x10000) ! 660: #define ADD_INT(X) (ADD_INTVAL (INTVAL (X))) ! 661: #define ADD_INTVAL(I) ((unsigned) (I) + 0xffff < 0x1ffff) ! 662: #define POWER_OF_2(I) ((I) && POWER_OF_2_or_0(I)) ! 663: #define POWER_OF_2_or_0(I) (((I) & ((unsigned)(I) - 1)) == 0) ! 664: ! 665: #define CONST_OK_FOR_LETTER_P(VALUE, C) \ ! 666: ((C) == 'I' ? SMALL_INTVAL (VALUE) \ ! 667: : (C) == 'J' ? SMALL_INTVAL (-(VALUE)) \ ! 668: : (C) == 'L' ? ((VALUE) & 0xffff) == 0 \ ! 669: : (C) == 'M' ? integer_ok_for_set (VALUE) \ ! 670: : (C) == 'N' ? (VALUE) < 0 \ ! 671: : (C) == 'O' ? (VALUE) == 0 \ ! 672: : (C) == 'P' ? (VALUE) >= 0 \ ! 673: : 0) ! 674: ! 675: /* Similar, but for floating constants, and defining letters G and H. ! 676: Here VALUE is the CONST_DOUBLE rtx itself. For the m88000, the ! 677: constraints are: `G' requires zero, and `H' requires one or two. */ ! 678: #define CONST_DOUBLE_OK_FOR_LETTER_P(VALUE, C) \ ! 679: ((C) == 'G' ? (CONST_DOUBLE_HIGH (VALUE) == 0 \ ! 680: && CONST_DOUBLE_LOW (VALUE) == 0) \ ! 681: : 0) ! 682: ! 683: /* Letters in the range `Q' through `U' in a register constraint string ! 684: may be defined in a machine-dependent fashion to stand for arbitrary ! 685: operand types. ! 686: ! 687: For the m88k, `Q' handles addresses in a call context. */ ! 688: ! 689: #define EXTRA_CONSTRAINT(OP, C) \ ! 690: ((C) == 'Q' ? symbolic_address_p (OP) : 0) ! 691: ! 692: /*** Describing Stack Layout ***/ ! 693: ! 694: /* Define this if pushing a word on the stack moves the stack pointer ! 695: to a smaller address. */ ! 696: #define STACK_GROWS_DOWNWARD ! 697: ! 698: /* Define this if the addresses of local variable slots are at negative ! 699: offsets from the frame pointer. */ ! 700: /* #define FRAME_GROWS_DOWNWARD */ ! 701: ! 702: /* Offset from the frame pointer to the first local variable slot to be ! 703: allocated. For the m88k, the debugger wants the return address (r1) ! 704: stored at location r30+4, and the previous frame pointer stored at ! 705: location r30. */ ! 706: #define STARTING_FRAME_OFFSET 8 ! 707: ! 708: /* If we generate an insn to push BYTES bytes, this says how many the ! 709: stack pointer really advances by. The m88k has no push instruction. */ ! 710: /* #define PUSH_ROUNDING(BYTES) */ ! 711: ! 712: /* If defined, the maximum amount of space required for outgoing arguments ! 713: will be computed and placed into the variable ! 714: `current_function_outgoing_args_size'. No space will be pushed ! 715: onto the stack for each call; instead, the function prologue should ! 716: increase the stack frame size by this amount. */ ! 717: #define ACCUMULATE_OUTGOING_ARGS ! 718: ! 719: /* Offset from the stack pointer register to the first location at which ! 720: outgoing arguments are placed. Use the default value zero. */ ! 721: /* #define STACK_POINTER_OFFSET 0 */ ! 722: ! 723: /* Offset of first parameter from the argument pointer register value. ! 724: Using an argument pointer, this is 0 for the m88k. GCC knows ! 725: how to eliminate the argument pointer references if necessary. */ ! 726: #define FIRST_PARM_OFFSET(FNDECL) 0 ! 727: ! 728: /* Define this if functions should assume that stack space has been ! 729: allocated for arguments even when their values are passed in ! 730: registers. ! 731: ! 732: The value of this macro is the size, in bytes, of the area reserved for ! 733: arguments passed in registers. ! 734: ! 735: This space can either be allocated by the caller or be a part of the ! 736: machine-dependent stack frame: `OUTGOING_REG_PARM_STACK_SPACE' ! 737: says which. */ ! 738: #define REG_PARM_STACK_SPACE(FNDECL) 32 ! 739: ! 740: /* Define this macro if REG_PARM_STACK_SPACE is defined but stack ! 741: parameters don't skip the area specified by REG_PARM_STACK_SPACE. ! 742: Normally, when a parameter is not passed in registers, it is placed on ! 743: the stack beyond the REG_PARM_STACK_SPACE area. Defining this macro ! 744: suppresses this behavior and causes the parameter to be passed on the ! 745: stack in its natural location. */ ! 746: #define STACK_PARMS_IN_REG_PARM_AREA ! 747: ! 748: /* Define this if it is the responsibility of the caller to allocate the ! 749: area reserved for arguments passed in registers. If ! 750: `ACCUMULATE_OUTGOING_ARGS' is also defined, the only effect of this ! 751: macro is to determine whether the space is included in ! 752: `current_function_outgoing_args_size'. */ ! 753: /* #define OUTGOING_REG_PARM_STACK_SPACE */ ! 754: ! 755: /* Offset from the stack pointer register to an item dynamically allocated ! 756: on the stack, e.g., by `alloca'. ! 757: ! 758: The default value for this macro is `STACK_POINTER_OFFSET' plus the ! 759: length of the outgoing arguments. The default is correct for most ! 760: machines. See `function.c' for details. */ ! 761: /* #define STACK_DYNAMIC_OFFSET(FUNDECL) ... */ ! 762: ! 763: /* Value is the number of bytes of arguments automatically ! 764: popped when returning from a subroutine call. ! 765: FUNTYPE is the data type of the function (as a tree), ! 766: or for a library call it is an identifier node for the subroutine name. ! 767: SIZE is the number of bytes of arguments passed on the stack. */ ! 768: #define RETURN_POPS_ARGS(FUNTYPE,SIZE) 0 ! 769: ! 770: /* Define how to find the value returned by a function. ! 771: VALTYPE is the data type of the value (as a tree). ! 772: If the precise function being called is known, FUNC is its FUNCTION_DECL; ! 773: otherwise, FUNC is 0. */ ! 774: #define FUNCTION_VALUE(VALTYPE, FUNC) \ ! 775: gen_rtx (REG, \ ! 776: TYPE_MODE (VALTYPE) == BLKmode ? SImode : TYPE_MODE (VALTYPE), \ ! 777: 2) ! 778: ! 779: /* Define this if it differs from FUNCTION_VALUE. */ ! 780: /* #define FUNCTION_OUTGOING_VALUE(VALTYPE, FUNC) ... */ ! 781: ! 782: /* Disable the promotion of some structures and unions to registers. */ ! 783: #define RETURN_IN_MEMORY(TYPE) \ ! 784: ((TREE_CODE (TYPE) == RECORD_TYPE || TREE_CODE(TYPE) == UNION_TYPE) \ ! 785: && !(TYPE_MODE (TYPE) == SImode \ ! 786: || (TYPE_MODE (TYPE) == BLKmode \ ! 787: && TYPE_ALIGN (TYPE) == BITS_PER_WORD \ ! 788: && int_size_in_bytes (TYPE) == UNITS_PER_WORD))) ! 789: ! 790: /* Define how to find the value returned by a library function ! 791: assuming the value has mode MODE. */ ! 792: #define LIBCALL_VALUE(MODE) gen_rtx (REG, MODE, 2) ! 793: ! 794: /* True if N is a possible register number for a function value ! 795: as seen by the caller. */ ! 796: #define FUNCTION_VALUE_REGNO_P(N) ((N) == 2) ! 797: ! 798: /* Determine whether a function argument is passed in a register, and ! 799: which register. See m88k.c. */ ! 800: #define FUNCTION_ARG(CUM, MODE, TYPE, NAMED) \ ! 801: m88k_function_arg (CUM, MODE, TYPE, NAMED) ! 802: ! 803: /* Define this if it differs from FUNCTION_ARG. */ ! 804: /* #define FUNCTION_INCOMING_ARG(CUM, MODE, TYPE, NAMED) ... */ ! 805: ! 806: /* A C expression for the number of words, at the beginning of an ! 807: argument, must be put in registers. The value must be zero for ! 808: arguments that are passed entirely in registers or that are entirely ! 809: pushed on the stack. */ ! 810: #define FUNCTION_ARG_PARTIAL_NREGS(CUM, MODE, TYPE, NAMED) (0) ! 811: ! 812: /* A C expression that indicates when an argument must be passed by ! 813: reference. If nonzero for an argument, a copy of that argument is ! 814: made in memory and a pointer to the argument is passed instead of the ! 815: argument itself. The pointer is passed in whatever way is appropriate ! 816: for passing a pointer to that type. */ ! 817: #define FUNCTION_ARG_PASS_BY_REFERENCE(CUM, MODE, TYPE, NAMED) (0) ! 818: ! 819: /* A C type for declaring a variable that is used as the first argument ! 820: of `FUNCTION_ARG' and other related values. It suffices to count ! 821: the number of words of argument so far. */ ! 822: #define CUMULATIVE_ARGS int ! 823: ! 824: /* Initialize a variable CUM of type CUMULATIVE_ARGS for a call to a ! 825: function whose data type is FNTYPE. For a library call, FNTYPE is 0. */ ! 826: #define INIT_CUMULATIVE_ARGS(CUM,FNTYPE,LIBNAME) ((CUM) = 0) ! 827: ! 828: /* A C statement (sans semicolon) to update the summarizer variable ! 829: CUM to advance past an argument in the argument list. The values ! 830: MODE, TYPE and NAMED describe that argument. Once this is done, ! 831: the variable CUM is suitable for analyzing the *following* argument ! 832: with `FUNCTION_ARG', etc. (TYPE is null for libcalls where that ! 833: information may not be available.) */ ! 834: #define FUNCTION_ARG_ADVANCE(CUM, MODE, TYPE, NAMED) \ ! 835: do { \ ! 836: enum machine_mode __mode = (TYPE) ? TYPE_MODE (TYPE) : (MODE); \ ! 837: if ((CUM & 1) \ ! 838: && (__mode == DImode || __mode == DFmode \ ! 839: || ((TYPE) && TYPE_ALIGN (TYPE) > BITS_PER_WORD))) \ ! 840: CUM++; \ ! 841: CUM += (((__mode != BLKmode) \ ! 842: ? GET_MODE_SIZE (MODE) : int_size_in_bytes (TYPE)) \ ! 843: + 3) / 4; \ ! 844: } while (0) ! 845: ! 846: /* True if N is a possible register number for function argument passing. ! 847: On the m88000, these are registers 2 through 9. */ ! 848: #define FUNCTION_ARG_REGNO_P(N) ((N) <= 9 && (N) >= 2) ! 849: ! 850: /* A C expression which determines whether, and in which direction, ! 851: to pad out an argument with extra space. The value should be of ! 852: type `enum direction': either `upward' to pad above the argument, ! 853: `downward' to pad below, or `none' to inhibit padding. ! 854: ! 855: This macro does not control the *amount* of padding; that is always ! 856: just enough to reach the next multiple of `FUNCTION_ARG_BOUNDARY'. */ ! 857: #define FUNCTION_ARG_PADDING(MODE, TYPE) \ ! 858: ((MODE) == BLKmode \ ! 859: || ((TYPE) && (TREE_CODE (TYPE) == RECORD_TYPE \ ! 860: || TREE_CODE (TYPE) == UNION_TYPE)) \ ! 861: ? upward : GET_MODE_BITSIZE (MODE) < PARM_BOUNDARY ? downward : none) ! 862: ! 863: /* If defined, a C expression that gives the alignment boundary, in bits, ! 864: of an argument with the specified mode and type. If it is not defined, ! 865: `PARM_BOUNDARY' is used for all arguments. */ ! 866: #define FUNCTION_ARG_BOUNDARY(MODE, TYPE) \ ! 867: (((TYPE) ? TYPE_ALIGN (TYPE) : GET_MODE_SIZE (MODE)) <= PARM_BOUNDARY \ ! 868: ? PARM_BOUNDARY : 2 * PARM_BOUNDARY) ! 869: ! 870: /* Generate necessary RTL for __builtin_saveregs(). ! 871: ARGLIST is the argument list; see expr.c. */ ! 872: #define EXPAND_BUILTIN_SAVEREGS(ARGLIST) m88k_builtin_saveregs (ARGLIST) ! 873: ! 874: /* Generate the assembly code for function entry. */ ! 875: #define FUNCTION_PROLOGUE(FILE, SIZE) m88k_output_prologue(FILE, SIZE) ! 876: ! 877: /* Output assembler code to FILE to increment profiler label # LABELNO ! 878: for profiling a function entry. Redefined in m88kv3.h, m88kv4.h and ! 879: m88kdgux.h. */ ! 880: #define FUNCTION_PROFILER(FILE, LABELNO) \ ! 881: output_function_profiler (FILE, LABELNO, "mcount", 1) ! 882: ! 883: /* Output assembler code to FILE to initialize basic-block profiling for ! 884: the current module. LABELNO is unique to each instance. */ ! 885: #define FUNCTION_BLOCK_PROFILER(FILE, LABELNO) \ ! 886: output_function_block_profiler (FILE, LABELNO) ! 887: ! 888: /* Output assembler code to FILE to increment the count associated with ! 889: the basic block number BLOCKNO. */ ! 890: #define BLOCK_PROFILER(FILE, BLOCKNO) output_block_profiler (FILE, BLOCKNO) ! 891: ! 892: /* EXIT_IGNORE_STACK should be nonzero if, when returning from a function, ! 893: the stack pointer does not matter. The value is tested only in ! 894: functions that have frame pointers. ! 895: No definition is equivalent to always zero. */ ! 896: #define EXIT_IGNORE_STACK (1) ! 897: ! 898: /* Generate the assembly code for function exit. */ ! 899: #define FUNCTION_EPILOGUE(FILE, SIZE) m88k_output_epilogue(FILE, SIZE) ! 900: ! 901: /* Define the number of delay slots needed for the function epilogue. ! 902: These are used for scheduling the function epilogue and depend on ! 903: what the epilogue looks like. */ ! 904: #define DELAY_SLOTS_FOR_EPILOGUE delay_slots_for_epilogue () ! 905: ! 906: /* Define whether INSN can be placed in delay slot N for the epilogue. */ ! 907: #define ELIGIBLE_FOR_EPILOGUE_DELAY(INSN,N) \ ! 908: eligible_for_epilogue_delay (INSN) ! 909: ! 910: /* Value should be nonzero if functions must have frame pointers. ! 911: Zero means the frame pointer need not be set up (and parms ! 912: may be accessed via the stack pointer) in functions that seem suitable. ! 913: This is computed in `reload', in reload1.c. */ ! 914: #define FRAME_POINTER_REQUIRED \ ! 915: (frame_pointer_needed \ ! 916: || (write_symbols != NO_DEBUG && !TARGET_OCS_FRAME_POSITION)) ! 917: ! 918: /* Definitions for register eliminations. ! 919: ! 920: We have two registers that can be eliminated on the m88k. First, the ! 921: frame pointer register can often be eliminated in favor of the stack ! 922: pointer register. Secondly, the argument pointer register can always be ! 923: eliminated; it is replaced with either the stack or frame pointer. */ ! 924: ! 925: /* This is an array of structures. Each structure initializes one pair ! 926: of eliminable registers. The "from" register number is given first, ! 927: followed by "to". Eliminations of the same "from" register are listed ! 928: in order of preference. */ ! 929: #define ELIMINABLE_REGS \ ! 930: {{ ARG_POINTER_REGNUM, STACK_POINTER_REGNUM}, \ ! 931: { ARG_POINTER_REGNUM, FRAME_POINTER_REGNUM}, \ ! 932: { FRAME_POINTER_REGNUM, STACK_POINTER_REGNUM}} ! 933: ! 934: /* Given FROM and TO register numbers, say whether this elimination ! 935: is allowed. */ ! 936: #define CAN_ELIMINATE(FROM, TO) \ ! 937: (!((FROM) == FRAME_POINTER_REGNUM && FRAME_POINTER_REQUIRED)) ! 938: ! 939: /* Define the offset between two registers, one to be eliminated, and the other ! 940: its replacement, at the start of a routine. */ ! 941: #define INITIAL_ELIMINATION_OFFSET(FROM, TO, OFFSET) \ ! 942: { m88k_layout_frame (); \ ! 943: if ((FROM) == FRAME_POINTER_REGNUM && (TO) == STACK_POINTER_REGNUM) \ ! 944: (OFFSET) = m88k_fp_offset; \ ! 945: else if ((FROM) == ARG_POINTER_REGNUM && (TO) == FRAME_POINTER_REGNUM) \ ! 946: (OFFSET) = m88k_stack_size - m88k_fp_offset; \ ! 947: else if ((FROM) == ARG_POINTER_REGNUM && (TO) == STACK_POINTER_REGNUM) \ ! 948: (OFFSET) = m88k_stack_size; \ ! 949: else \ ! 950: abort (); \ ! 951: } ! 952: ! 953: /*** Trampolines for Nested Functions ***/ ! 954: ! 955: /* Output assembler code for a block containing the constant parts ! 956: of a trampoline, leaving space for the variable parts. ! 957: ! 958: This block is placed on the stack and filled in. It is aligned ! 959: 0 mod 128 and those portions that are executed are constant. ! 960: This should work for instruction caches that have cache lines up ! 961: to the aligned amount (128 is arbitrary), provided no other code ! 962: producer is attempting to play the same game. This of course is ! 963: in violation of any number of 88open standards. */ ! 964: ! 965: #define TRAMPOLINE_TEMPLATE(FILE) \ ! 966: { \ ! 967: /* Save the return address (r1) in the static chain reg (r11). */ \ ! 968: fprintf (FILE, "\tor\t %s,%s,0\n", reg_names[11], reg_names[1]); \ ! 969: /* Locate this block; transfer to the next instruction. */ \ ! 970: fprintf (FILE, "\tbsr\t 1\n"); \ ! 971: /* Save r10; use it as the relative pointer; restore r1. */ \ ! 972: fprintf (FILE, "\tst\t %s,%s,24\n", reg_names[10], reg_names[1]); \ ! 973: fprintf (FILE, "\tor\t %s,%s,0\n", reg_names[10], reg_names[1]); \ ! 974: fprintf (FILE, "\tor\t %s,%s,0\n", reg_names[1], reg_names[11]); \ ! 975: /* Load the function's address and go there. */ \ ! 976: fprintf (FILE, "\tld\t %s,%s,32\n", reg_names[11], reg_names[10]); \ ! 977: fprintf (FILE, "\tjmp.n\t %s\n", reg_names[11]); \ ! 978: /* Restore r10 and load the static chain register. */ \ ! 979: fprintf (FILE, "\tld.d\t %s,%s,24\n", reg_names[10], reg_names[10]); \ ! 980: /* Storage: r10 save area, static chain, function address. */ \ ! 981: ASM_OUTPUT_INT (FILE, const0_rtx); \ ! 982: ASM_OUTPUT_INT (FILE, const0_rtx); \ ! 983: ASM_OUTPUT_INT (FILE, const0_rtx); \ ! 984: } ! 985: ! 986: /* Length in units of the trampoline for entering a nested function. ! 987: This is really two components. The first 32 bytes are fixed and ! 988: must be copied; the last 12 bytes are just storage that's filled ! 989: in later. So for allocation purposes, it's 32+12 bytes, but for ! 990: initializaiton purposes, it's 32 bytes. */ ! 991: ! 992: #define TRAMPOLINE_SIZE (32+12) ! 993: ! 994: /* Alignment required for a trampoline. 128 is used to find the ! 995: beginning of a line in the instruction cache and to allow for ! 996: instruction cache lines of up to 128 bytes. */ ! 997: ! 998: #define TRAMPOLINE_ALIGNMENT 128 ! 999: ! 1000: /* Emit RTL insns to initialize the variable parts of a trampoline. ! 1001: FNADDR is an RTX for the address of the function's pure code. ! 1002: CXT is an RTX for the static chain value for the function. */ ! 1003: ! 1004: #define INITIALIZE_TRAMPOLINE(TRAMP, FNADDR, CXT) \ ! 1005: { \ ! 1006: emit_move_insn (gen_rtx (MEM, SImode, plus_constant (TRAMP, 40)), FNADDR); \ ! 1007: emit_move_insn (gen_rtx (MEM, SImode, plus_constant (TRAMP, 36)), CXT); \ ! 1008: } ! 1009: ! 1010: /*** Library Subroutine Names ***/ ! 1011: ! 1012: /* Define this macro if GNU CC should generate calls to the System V ! 1013: (and ANSI C) library functions `memcpy' and `memset' rather than ! 1014: the BSD functions `bcopy' and `bzero'. */ ! 1015: #define TARGET_MEM_FUNCTIONS ! 1016: ! 1017: /*** Addressing Modes ***/ ! 1018: ! 1019: /* #define HAVE_POST_INCREMENT */ ! 1020: /* #define HAVE_POST_DECREMENT */ ! 1021: ! 1022: /* #define HAVE_PRE_DECREMENT */ ! 1023: /* #define HAVE_PRE_INCREMENT */ ! 1024: ! 1025: /* Recognize any constant value that is a valid address. */ ! 1026: #define CONSTANT_ADDRESS_P(X) (CONSTANT_P (X)) ! 1027: ! 1028: /* Maximum number of registers that can appear in a valid memory address. */ ! 1029: #define MAX_REGS_PER_ADDRESS 2 ! 1030: ! 1031: /* The condition for memory shift insns. */ ! 1032: #define SCALED_ADDRESS_P(ADDR) \ ! 1033: (GET_CODE (ADDR) == PLUS \ ! 1034: && (GET_CODE (XEXP (ADDR, 0)) == MULT \ ! 1035: || GET_CODE (XEXP (ADDR, 1)) == MULT)) ! 1036: ! 1037: /* Can the reference to X be made short? */ ! 1038: #define SHORT_ADDRESS_P(X,TEMP) \ ! 1039: ((TEMP) = (GET_CODE (X) == CONST ? get_related_value (X) : X), \ ! 1040: ((TEMP) && GET_CODE (TEMP) == SYMBOL_REF && SYMBOL_REF_FLAG (TEMP))) ! 1041: ! 1042: /* GO_IF_LEGITIMATE_ADDRESS recognizes an RTL expression ! 1043: that is a valid memory address for an instruction. ! 1044: The MODE argument is the machine mode for the MEM expression ! 1045: that wants to use this address. ! 1046: ! 1047: On the m88000, a legitimate address has the form REG, REG+REG, ! 1048: REG+SMALLINT, REG+(REG*modesize) (REG[REG]), or SMALLINT. ! 1049: ! 1050: The register elimination process should deal with the argument ! 1051: pointer and frame pointer changing to REG+SMALLINT. */ ! 1052: ! 1053: #define LEGITIMATE_INDEX_P(X, MODE) \ ! 1054: ((GET_CODE (X) == CONST_INT \ ! 1055: && SMALL_INT (X)) \ ! 1056: || (REG_P (X) \ ! 1057: && REG_OK_FOR_INDEX_P (X)) \ ! 1058: || (GET_CODE (X) == MULT \ ! 1059: && REG_P (XEXP (X, 0)) \ ! 1060: && REG_OK_FOR_INDEX_P (XEXP (X, 0)) \ ! 1061: && GET_CODE (XEXP (X, 1)) == CONST_INT \ ! 1062: && INTVAL (XEXP (X, 1)) == GET_MODE_SIZE (MODE))) ! 1063: ! 1064: #define GO_IF_LEGITIMATE_ADDRESS(MODE, X, ADDR) \ ! 1065: { \ ! 1066: register rtx _x; \ ! 1067: if (REG_P (X)) \ ! 1068: { \ ! 1069: if (REG_OK_FOR_BASE_P (X)) \ ! 1070: goto ADDR; \ ! 1071: } \ ! 1072: else if (GET_CODE (X) == PLUS) \ ! 1073: { \ ! 1074: register rtx _x0 = XEXP (X, 0); \ ! 1075: register rtx _x1 = XEXP (X, 1); \ ! 1076: if ((flag_pic \ ! 1077: && _x0 == pic_offset_table_rtx \ ! 1078: && (flag_pic == 2 \ ! 1079: ? REG_P (_x1) \ ! 1080: : (GET_CODE (_x1) == SYMBOL_REF \ ! 1081: || GET_CODE (_x1) == LABEL_REF))) \ ! 1082: || (REG_P (_x0) \ ! 1083: && (REG_OK_FOR_BASE_P (_x0) \ ! 1084: && LEGITIMATE_INDEX_P (_x1, MODE))) \ ! 1085: || (REG_P (_x1) \ ! 1086: && (REG_OK_FOR_BASE_P (_x1) \ ! 1087: && LEGITIMATE_INDEX_P (_x0, MODE)))) \ ! 1088: goto ADDR; \ ! 1089: } \ ! 1090: else if (GET_CODE (X) == LO_SUM) \ ! 1091: { \ ! 1092: register rtx _x0 = XEXP (X, 0); \ ! 1093: register rtx _x1 = XEXP (X, 1); \ ! 1094: if (((REG_P (_x0) \ ! 1095: && REG_OK_FOR_BASE_P (_x0)) \ ! 1096: || (GET_CODE (_x0) == SUBREG \ ! 1097: && REG_P (SUBREG_REG (_x0)) \ ! 1098: && REG_OK_FOR_BASE_P (SUBREG_REG (_x0)))) \ ! 1099: && CONSTANT_P (_x1)) \ ! 1100: goto ADDR; \ ! 1101: } \ ! 1102: else if (GET_CODE (X) == CONST_INT \ ! 1103: && SMALL_INT (X)) \ ! 1104: goto ADDR; \ ! 1105: else if (SHORT_ADDRESS_P (X, _x)) \ ! 1106: goto ADDR; \ ! 1107: } ! 1108: ! 1109: /* The macros REG_OK_FOR..._P assume that the arg is a REG rtx ! 1110: and check its validity for a certain class. ! 1111: We have two alternate definitions for each of them. ! 1112: The usual definition accepts all pseudo regs; the other rejects ! 1113: them unless they have been allocated suitable hard regs. ! 1114: The symbol REG_OK_STRICT causes the latter definition to be used. ! 1115: ! 1116: Most source files want to accept pseudo regs in the hope that ! 1117: they will get allocated to the class that the insn wants them to be in. ! 1118: Source files for reload pass need to be strict. ! 1119: After reload, it makes no difference, since pseudo regs have ! 1120: been eliminated by then. */ ! 1121: ! 1122: #ifndef REG_OK_STRICT ! 1123: ! 1124: /* Nonzero if X is a hard reg that can be used as an index ! 1125: or if it is a pseudo reg. Not the argument pointer. */ ! 1126: #define REG_OK_FOR_INDEX_P(X) (X) ! 1127: /* Nonzero if X is a hard reg that can be used as a base reg ! 1128: or if it is a pseudo reg. */ ! 1129: #define REG_OK_FOR_BASE_P(X) (1) ! 1130: ! 1131: #else ! 1132: ! 1133: /* Nonzero if X is a hard reg that can be used as an index. */ ! 1134: #define REG_OK_FOR_INDEX_P(X) REGNO_OK_FOR_INDEX_P (REGNO (X)) ! 1135: /* Nonzero if X is a hard reg that can be used as a base reg. */ ! 1136: #define REG_OK_FOR_BASE_P(X) REGNO_OK_FOR_BASE_P (REGNO (X)) ! 1137: ! 1138: #endif ! 1139: ! 1140: /* Try machine-dependent ways of modifying an illegitimate address ! 1141: to be legitimate. If we find one, return the new, valid address. ! 1142: This macro is used in only one place: `memory_address' in explow.c. ! 1143: ! 1144: OLDX is the address as it was before break_out_memory_refs was called. ! 1145: In some cases it is useful to look at this to decide what needs to be done. ! 1146: ! 1147: MODE and WIN are passed so that this macro can use ! 1148: GO_IF_LEGITIMATE_ADDRESS. ! 1149: ! 1150: It is always safe for this macro to do nothing. It exists to recognize ! 1151: opportunities to optimize the output. */ ! 1152: ! 1153: /* On the m88000, change REG+N into REG+REG, and REG+(X*Y) into REG+REG. */ ! 1154: ! 1155: #define LEGITIMIZE_ADDRESS(X,OLDX,MODE,WIN) \ ! 1156: { \ ! 1157: if (GET_CODE (X) == PLUS && CONSTANT_ADDRESS_P (XEXP (X, 1))) \ ! 1158: (X) = gen_rtx (PLUS, SImode, XEXP (X, 0), \ ! 1159: copy_to_mode_reg (SImode, XEXP (X, 1))); \ ! 1160: if (GET_CODE (X) == PLUS && CONSTANT_ADDRESS_P (XEXP (X, 0))) \ ! 1161: (X) = gen_rtx (PLUS, SImode, XEXP (X, 1), \ ! 1162: copy_to_mode_reg (SImode, XEXP (X, 0))); \ ! 1163: if (GET_CODE (X) == PLUS && GET_CODE (XEXP (X, 0)) == MULT) \ ! 1164: (X) = gen_rtx (PLUS, SImode, XEXP (X, 1), \ ! 1165: force_operand (XEXP (X, 0), 0)); \ ! 1166: if (GET_CODE (X) == PLUS && GET_CODE (XEXP (X, 1)) == MULT) \ ! 1167: (X) = gen_rtx (PLUS, SImode, XEXP (X, 0), \ ! 1168: force_operand (XEXP (X, 1), 0)); \ ! 1169: if (GET_CODE (X) == SYMBOL_REF || GET_CODE (X) == CONST \ ! 1170: || GET_CODE (X) == LABEL_REF) \ ! 1171: (X) = legitimize_address (flag_pic, X, gen_reg_rtx (Pmode)); \ ! 1172: if (memory_address_p (MODE, X)) \ ! 1173: goto WIN; } ! 1174: ! 1175: /* Go to LABEL if ADDR (a legitimate address expression) ! 1176: has an effect that depends on the machine mode it is used for. ! 1177: On the the m88000 this is never true. */ ! 1178: ! 1179: #define GO_IF_MODE_DEPENDENT_ADDRESS(ADDR,LABEL) ! 1180: ! 1181: /* Nonzero if the constant value X is a legitimate general operand. ! 1182: It is given that X satisfies CONSTANT_P or is a CONST_DOUBLE. */ ! 1183: #define LEGITIMATE_CONSTANT_P(X) (1) ! 1184: ! 1185: /*** Condition Code Information ***/ ! 1186: ! 1187: /* C code for a data type which is used for declaring the `mdep' ! 1188: component of `cc_status'. It defaults to `int'. */ ! 1189: /* #define CC_STATUS_MDEP int */ ! 1190: ! 1191: /* A C expression to initialize the `mdep' field to "empty". */ ! 1192: /* #define CC_STATUS_MDEP_INIT (cc_status.mdep = 0) */ ! 1193: ! 1194: /* Macro to zap the normal portions of CC_STATUS, but leave the ! 1195: machine dependent parts (ie, literal synthesis) alone. */ ! 1196: /* #define CC_STATUS_INIT_NO_MDEP \ ! 1197: (cc_status.flags = 0, cc_status.value1 = 0, cc_status.value2 = 0) */ ! 1198: ! 1199: /* When using a register to hold the condition codes, the cc_status ! 1200: mechanism cannot be used. */ ! 1201: #define NOTICE_UPDATE_CC(EXP, INSN) (0) ! 1202: ! 1203: /*** Miscellaneous Parameters ***/ ! 1204: ! 1205: /* Define the codes that are matched by predicates in m88k.c. */ ! 1206: #define PREDICATE_CODES \ ! 1207: {"move_operand", {SUBREG, REG, CONST_INT, LO_SUM, MEM}}, \ ! 1208: {"call_address_operand", {SUBREG, REG, SYMBOL_REF, LABEL_REF, CONST}}, \ ! 1209: {"arith_operand", {SUBREG, REG, CONST_INT}}, \ ! 1210: {"arith5_operand", {SUBREG, REG, CONST_INT}}, \ ! 1211: {"arith32_operand", {SUBREG, REG, CONST_INT}}, \ ! 1212: {"arith64_operand", {SUBREG, REG, CONST_INT}}, \ ! 1213: {"int5_operand", {CONST_INT}}, \ ! 1214: {"int32_operand", {CONST_INT}}, \ ! 1215: {"add_operand", {SUBREG, REG, CONST_INT}}, \ ! 1216: {"reg_or_bbx_mask_operand", {SUBREG, REG, CONST_INT}}, \ ! 1217: {"real_or_0_operand", {SUBREG, REG, CONST_DOUBLE}}, \ ! 1218: {"relop", {EQ, NE, LT, LE, GE, GT, LTU, LEU, GEU, GTU}}, \ ! 1219: {"relop_no_unsigned", {EQ, NE, LT, LE, GE, GT}}, \ ! 1220: {"equality_op", {EQ, NE}}, \ ! 1221: {"pc_or_label_ref", {PC, LABEL_REF}}, ! 1222: ! 1223: /* An alias for a machine mode name. This is the machine mode that ! 1224: elements of a jump-table should have. */ ! 1225: #define CASE_VECTOR_MODE SImode ! 1226: ! 1227: /* Define this macro if jump-tables should contain relative addresses. */ ! 1228: #define CASE_VECTOR_PC_RELATIVE ! 1229: ! 1230: /* Define this if control falls through a `case' insn when the index ! 1231: value is out of range. This means the specified default-label is ! 1232: actually ignored by the `case' insn proper. */ ! 1233: /* #define CASE_DROPS_THROUGH */ ! 1234: ! 1235: /* Specify the tree operation to be used to convert reals to integers. */ ! 1236: #define IMPLICIT_FIX_EXPR FIX_ROUND_EXPR ! 1237: ! 1238: /* This is the kind of divide that is easiest to do in the general case. */ ! 1239: #define EASY_DIV_EXPR TRUNC_DIV_EXPR ! 1240: ! 1241: /* Define this as 1 if `char' should by default be signed; else as 0. */ ! 1242: #define DEFAULT_SIGNED_CHAR 1 ! 1243: ! 1244: /* The 88open ABI says size_t is unsigned int. */ ! 1245: #define SIZE_TYPE "unsigned int" ! 1246: ! 1247: /* Allow and ignore #sccs directives */ ! 1248: #define SCCS_DIRECTIVE ! 1249: ! 1250: /* Code to handle #pragma directives. The interface is a bit messy, ! 1251: but there's no simpler way to do this while still using yylex. */ ! 1252: #define HANDLE_PRAGMA(FILE) \ ! 1253: do { \ ! 1254: while (c == ' ' || c == '\t') \ ! 1255: c = getc (FILE); \ ! 1256: if (c == '\n' || c == EOF) \ ! 1257: { \ ! 1258: m88k_handle_pragma_token (0, 0); \ ! 1259: return c; \ ! 1260: } \ ! 1261: ungetc (c, FILE); \ ! 1262: switch (yylex ()) \ ! 1263: { \ ! 1264: case IDENTIFIER: \ ! 1265: case TYPENAME: \ ! 1266: case STRING: \ ! 1267: case CONSTANT: \ ! 1268: m88k_handle_pragma_token (token_buffer, yylval.ttype); \ ! 1269: break; \ ! 1270: default: \ ! 1271: m88k_handle_pragma_token (token_buffer, 0); \ ! 1272: } \ ! 1273: if (nextchar >= 0) \ ! 1274: c = nextchar, nextchar = -1; \ ! 1275: else \ ! 1276: c = getc (FILE); \ ! 1277: } while (1) ! 1278: ! 1279: /* Tell when to handle #pragma weak. This is only done for V.4. */ ! 1280: #define HANDLE_PRAGMA_WEAK TARGET_SVR4 ! 1281: ! 1282: /* Max number of bytes we can move from memory to memory ! 1283: in one reasonably fast instruction. */ ! 1284: #define MOVE_MAX 64 ! 1285: ! 1286: /* Define if normal loads of shorter-than-word items from memory clears ! 1287: the rest of the bigs in the register. */ ! 1288: #define BYTE_LOADS_ZERO_EXTEND ! 1289: ! 1290: /* Zero if access to memory by bytes is faster. */ ! 1291: #define SLOW_BYTE_ACCESS 1 ! 1292: ! 1293: /* Value is 1 if truncating an integer of INPREC bits to OUTPREC bits ! 1294: is done just by pretending it is already truncated. */ ! 1295: #define TRULY_NOOP_TRUNCATION(OUTPREC, INPREC) 1 ! 1296: ! 1297: /* Define this if addresses of constant functions ! 1298: shouldn't be put through pseudo regs where they can be cse'd. ! 1299: Desirable on machines where ordinary constants are expensive ! 1300: but a CALL with constant address is cheap. */ ! 1301: #define NO_FUNCTION_CSE ! 1302: ! 1303: /* Define this macro if an argument declared as `char' or ! 1304: `short' in a prototype should actually be passed as an ! 1305: `int'. In addition to avoiding errors in certain cases of ! 1306: mismatch, it also makes for better code on certain machines. */ ! 1307: #define PROMOTE_PROTOTYPES ! 1308: ! 1309: /* Define this macro if a float function always returns float ! 1310: (even in traditional mode). Redefined in m88kluna.h. */ ! 1311: #define TRADITIONAL_RETURN_FLOAT ! 1312: ! 1313: /* We assume that the store-condition-codes instructions store 0 for false ! 1314: and some other value for true. This is the value stored for true. */ ! 1315: #define STORE_FLAG_VALUE -1 ! 1316: ! 1317: /* Specify the machine mode that pointers have. ! 1318: After generation of rtl, the compiler makes no further distinction ! 1319: between pointers and any other objects of this machine mode. */ ! 1320: #define Pmode SImode ! 1321: ! 1322: /* A function address in a call instruction ! 1323: is a word address (for indexing purposes) ! 1324: so give the MEM rtx word mode. */ ! 1325: #define FUNCTION_MODE SImode ! 1326: ! 1327: /* Compute the cost of computing a constant rtl expression RTX ! 1328: whose rtx-code is CODE. The body of this macro is a portion ! 1329: of a switch statement. If the code is computed here, ! 1330: return it with a return statement. Otherwise, break from the switch. ! 1331: ! 1332: We assume that any 16 bit integer can easily be recreated, so we ! 1333: indicate 0 cost, in an attempt to get GCC not to optimize things ! 1334: like comparison against a constant. ! 1335: ! 1336: The cost of CONST_DOUBLE is zero (if it can be placed in an insn, it ! 1337: is as good as a register; since it can't be placed in any insn, it ! 1338: won't do anything in cse, but it will cause expand_binop to pass the ! 1339: constant to the define_expands). */ ! 1340: #define CONST_COSTS(RTX,CODE) \ ! 1341: case CONST_INT: \ ! 1342: if (SMALL_INT (RTX)) \ ! 1343: return 0; \ ! 1344: else if (SMALL_INTVAL (- INTVAL (RTX))) \ ! 1345: return 2; \ ! 1346: else if (classify_integer (SImode, INTVAL (RTX)) != m88k_oru_or) \ ! 1347: return 4; \ ! 1348: return 7; \ ! 1349: case HIGH: \ ! 1350: return 2; \ ! 1351: case CONST: \ ! 1352: case LABEL_REF: \ ! 1353: case SYMBOL_REF: \ ! 1354: if (flag_pic) \ ! 1355: return (flag_pic == 2) ? 11 : 8; \ ! 1356: return 5; \ ! 1357: case CONST_DOUBLE: \ ! 1358: return 0; ! 1359: ! 1360: /* Provide the costs of an addressing mode that contains ADDR. ! 1361: If ADDR is not a valid address, it's cost is irrelavent. ! 1362: REG+REG is made slightly more expensive because it might keep ! 1363: a register live for longer than we might like. */ ! 1364: #define ADDRESS_COST(ADDR) \ ! 1365: (GET_CODE (ADDR) == REG ? 1 : \ ! 1366: GET_CODE (ADDR) == LO_SUM ? 1 : \ ! 1367: GET_CODE (ADDR) == HIGH ? 2 : \ ! 1368: GET_CODE (ADDR) == MULT ? 1 : \ ! 1369: GET_CODE (ADDR) != PLUS ? 4 : \ ! 1370: (REG_P (XEXP (ADDR, 0)) && REG_P (XEXP (ADDR, 1))) ? 2 : 1) ! 1371: ! 1372: /* Provide the costs of a rtl expression. This is in the body of a ! 1373: switch on CODE. */ ! 1374: #define RTX_COSTS(X,CODE) \ ! 1375: case MEM: \ ! 1376: return COSTS_N_INSNS (2); \ ! 1377: case MULT: \ ! 1378: return COSTS_N_INSNS (3); \ ! 1379: case DIV: \ ! 1380: case UDIV: \ ! 1381: case MOD: \ ! 1382: case UMOD: \ ! 1383: return COSTS_N_INSNS (38); ! 1384: ! 1385: /* A C expressions returning the cost of moving data of MODE from a register ! 1386: to or from memory. This is more costly than between registers. */ ! 1387: #define MEMORY_MOVE_COST(MODE) 4 ! 1388: ! 1389: /* Provide the cost of a branch. Exact meaning under development. */ ! 1390: #define BRANCH_COST (TARGET_88100 ? 1 : 2) ! 1391: ! 1392: /* Define this to be nonzero if the character `$' should be allowed ! 1393: by default in identifier names. */ ! 1394: #define DOLLARS_IN_IDENTIFIERS 1 ! 1395: ! 1396: /* Do not break .stabs pseudos into continuations. */ ! 1397: #define DBX_CONTIN_LENGTH 0 ! 1398: ! 1399: /*** Output of Assembler Code ***/ ! 1400: ! 1401: /* Control the assembler format that we output. */ ! 1402: ! 1403: /* Which assembler syntax. Redefined in m88kdgux.h. */ ! 1404: #define VERSION_0300_SYNTAX TARGET_SVR4 ! 1405: ! 1406: /* Allow pseudo-ops to be overridden. Override these in svr[34].h. */ ! 1407: #undef INT_ASM_OP ! 1408: #undef ASCII_DATA_ASM_OP ! 1409: #undef INIT_SECTION_ASM_OP ! 1410: #undef CONST_SECTION_ASM_OP ! 1411: #undef CTORS_SECTION_ASM_OP ! 1412: #undef DTORS_SECTION_ASM_OP ! 1413: #undef INIT_SECTION_ASM_OP ! 1414: #undef FINI_SECTION_ASM_OP ! 1415: #undef TYPE_ASM_OP ! 1416: #undef SIZE_ASM_OP ! 1417: ! 1418: /* These are used in varasm.c as well. */ ! 1419: #define TEXT_SECTION_ASM_OP "\ttext" ! 1420: #define DATA_SECTION_ASM_OP "\tdata" ! 1421: ! 1422: /* Other sections. */ ! 1423: #define CONST_SECTION_ASM_OP (VERSION_0300_SYNTAX \ ! 1424: ? "\tsection\t .rodata,\"a\"\n" \ ! 1425: : "\tsection\t .rodata,\"x\"\n") ! 1426: #define TDESC_SECTION_ASM_OP (VERSION_0300_SYNTAX \ ! 1427: ? "\tsection\t .tdesc,\"a\"" \ ! 1428: : "\tsection\t .tdesc,\"x\"") ! 1429: ! 1430: /* These must be constant strings for crtstuff.c. */ ! 1431: #define CTORS_SECTION_ASM_OP "\tsection\t .ctors,\"d\"\n" ! 1432: #define DTORS_SECTION_ASM_OP "\tsection\t .dtors,\"d\"\n" ! 1433: #define INIT_SECTION_ASM_OP "\tsection\t .init,\"x\"" ! 1434: #define FINI_SECTION_ASM_OP "\tsection\t .fini,\"x\"" ! 1435: ! 1436: /* These are pretty much common to all assemblers. */ ! 1437: #define IDENT_ASM_OP "\tident" ! 1438: #define FILE_ASM_OP "\tfile" ! 1439: #define SECTION_ASM_OP "\tsection" ! 1440: #define DEF_ASM_OP "\tdef" ! 1441: #define GLOBAL_ASM_OP "\tglobal" ! 1442: #define ALIGN_ASM_OP "\talign" ! 1443: #define SKIP_ASM_OP "\tzero" ! 1444: #define COMMON_ASM_OP "\tcomm" ! 1445: #define LOCAL_ASM_OP "\tbss" ! 1446: #define FLOAT_ASM_OP "\tfloat" ! 1447: #define DOUBLE_ASM_OP "\tdouble" ! 1448: #define INT_ASM_OP "\tword" ! 1449: #define ASM_LONG INT_ASM_OP ! 1450: #define SHORT_ASM_OP "\thalf" ! 1451: #define CHAR_ASM_OP "\tbyte" ! 1452: #define ASCII_DATA_ASM_OP "\tstring" ! 1453: ! 1454: /* These are particular to the global pool optimization. */ ! 1455: #define SBSS_ASM_OP "\tsbss" ! 1456: #define SCOMM_ASM_OP "\tscomm" ! 1457: #define SDATA_SECTION_ASM_OP "\tsdata" ! 1458: ! 1459: /* These are specific to PIC. */ ! 1460: #define TYPE_ASM_OP "\ttype" ! 1461: #define SIZE_ASM_OP "\tsize" ! 1462: #define WEAK_ASM_OP "\tweak" ! 1463: #ifndef AS_BUG_POUND_TYPE /* Faulty assemblers require @ rather than #. */ ! 1464: #undef TYPE_OPERAND_FMT ! 1465: #define TYPE_OPERAND_FMT "#%s" ! 1466: #endif ! 1467: ! 1468: /* These are specific to version 03.00 assembler syntax. */ ! 1469: #define INTERNAL_ASM_OP "\tlocal" ! 1470: #define VERSION_ASM_OP "\tversion" ! 1471: #define ASM_DWARF_POP_SECTION(FILE) fputs ("\tprevious\n", FILE) ! 1472: #define UNALIGNED_SHORT_ASM_OP "\tuahalf" ! 1473: #define UNALIGNED_INT_ASM_OP "\tuaword" ! 1474: ! 1475: /* Output any initial stuff to the assembly file. Always put out ! 1476: a file directive, even if not debugging. ! 1477: ! 1478: Immediately after putting out the file, put out a "sem.<value>" ! 1479: declaration. This should be harmless on other systems, and ! 1480: is used in DG/UX by the debuggers to suppliment COFF. The ! 1481: fields in the integer value are as follows: ! 1482: ! 1483: Bits Value Meaning ! 1484: ---- ----- ------- ! 1485: 0-1 0 No information about stack locations ! 1486: 1 Auto/param locations are based on r30 ! 1487: 2 Auto/param locations are based on CFA ! 1488: ! 1489: 3-2 0 No information on dimension order ! 1490: 1 Array dims in sym table matches source language ! 1491: 2 Array dims in sym table is in reverse order ! 1492: ! 1493: 5-4 0 No information about the case of global names ! 1494: 1 Global names appear in the symbol table as in the source ! 1495: 2 Global names have been converted to lower case ! 1496: 3 Global names have been converted to upper case. */ ! 1497: ! 1498: #ifdef SDB_DEBUGGING_INFO ! 1499: #define ASM_COFFSEM(FILE) \ ! 1500: if (write_symbols == SDB_DEBUG) \ ! 1501: { \ ! 1502: fprintf (FILE, "\nsem.%x:\t\t; %s\n", \ ! 1503: (((TARGET_OCS_FRAME_POSITION) ? 2 : 1) << 0) + (1 << 2) + (1 << 4),\ ! 1504: (TARGET_OCS_FRAME_POSITION) \ ! 1505: ? "frame is CFA, normal array dims, case unchanged" \ ! 1506: : "frame is r30, normal array dims, case unchanged"); \ ! 1507: } ! 1508: #else ! 1509: #define ASM_COFFSEM(FILE) ! 1510: #endif ! 1511: ! 1512: /* Output the first line of the assembly file. Redefined in m88kdgux.h. */ ! 1513: ! 1514: #define ASM_FIRST_LINE(FILE) \ ! 1515: do { \ ! 1516: if (VERSION_0300_SYNTAX) \ ! 1517: fprintf (FILE, "%s\t \"03.00\"\n", VERSION_ASM_OP); \ ! 1518: } while (0) ! 1519: ! 1520: /* Override svr[34].h. */ ! 1521: #undef ASM_FILE_START ! 1522: #define ASM_FILE_START(FILE) \ ! 1523: output_file_start (FILE, f_options, sizeof f_options / sizeof f_options[0], \ ! 1524: W_options, sizeof W_options / sizeof W_options[0]) ! 1525: ! 1526: #undef ASM_FILE_END ! 1527: ! 1528: #define ASM_OUTPUT_SOURCE_FILENAME(FILE, NAME) \ ! 1529: fprintf (FILE, "%s\t \"%s\"\n", FILE_ASM_OP, NAME) ! 1530: ! 1531: #ifdef SDB_DEBUGGING_INFO ! 1532: #define ASM_OUTPUT_SOURCE_LINE(FILE, LINE) \ ! 1533: if (m88k_prologue_done) \ ! 1534: fprintf (FILE, "\n\tln\t %d\t\t\t\t; Real source line %d\n",\ ! 1535: LINE - sdb_begin_function_line, LINE) ! 1536: #endif ! 1537: ! 1538: /* Code to handle #ident directives. Override svr[34].h definition. */ ! 1539: #undef ASM_OUTPUT_IDENT ! 1540: #ifdef DBX_DEBUGGING_INFO ! 1541: #define ASM_OUTPUT_IDENT(FILE, NAME) ! 1542: #else ! 1543: #define ASM_OUTPUT_IDENT(FILE, NAME) \ ! 1544: fprintf(FILE, "%s\t \"%s\"\n", IDENT_ASM_OP, NAME) ! 1545: #endif ! 1546: ! 1547: /* Output to assembler file text saying following lines ! 1548: may contain character constants, extra white space, comments, etc. */ ! 1549: #define ASM_APP_ON "" ! 1550: ! 1551: /* Output to assembler file text saying following lines ! 1552: no longer contain unusual constructs. */ ! 1553: #define ASM_APP_OFF "" ! 1554: ! 1555: /* Format the assembly opcode so that the arguments are all aligned. ! 1556: The maximum instruction size is 8 characters (fxxx.xxx), so a tab and a ! 1557: space will do to align the output. Abandon the output if a `%' is ! 1558: encountered. */ ! 1559: #define ASM_OUTPUT_OPCODE(STREAM, PTR) \ ! 1560: { \ ! 1561: int ch; \ ! 1562: char *orig_ptr; \ ! 1563: \ ! 1564: for (orig_ptr = (PTR); \ ! 1565: (ch = *(PTR)) && ch != ' ' && ch != '\t' && ch != '\n' && ch != '%'; \ ! 1566: (PTR)++) \ ! 1567: putc (ch, STREAM); \ ! 1568: \ ! 1569: if (ch == ' ' && orig_ptr != (PTR) && (PTR) - orig_ptr < 8) \ ! 1570: putc ('\t', STREAM); \ ! 1571: } ! 1572: ! 1573: /* How to refer to registers in assembler output. ! 1574: This sequence is indexed by compiler's hard-register-number. ! 1575: Updated by OVERRIDE_OPTIONS to include the # for version 03.00 syntax. */ ! 1576: ! 1577: #define REGISTER_NAMES \ ! 1578: {"#r0"+1, "#r1"+1, "#r2"+1, "#r3"+1, "#r4"+1, "#r5"+1, "#r6"+1, "#r7"+1, \ ! 1579: "#r8"+1, "#r9"+1, "#r10"+1,"#r11"+1,"#r12"+1,"#r13"+1,"#r14"+1,"#r15"+1,\ ! 1580: "#r16"+1,"#r17"+1,"#r18"+1,"#r19"+1,"#r20"+1,"#r21"+1,"#r22"+1,"#r23"+1,\ ! 1581: "#r24"+1,"#r25"+1,"#r26"+1,"#r27"+1,"#r28"+1,"#r29"+1,"#r30"+1,"#r31"+1} ! 1582: ! 1583: /* How to renumber registers for dbx and gdb. */ ! 1584: #define DBX_REGISTER_NUMBER(REGNO) (REGNO) ! 1585: ! 1586: /* Tell when to declare ASM names. Override svr4.h to provide this hook. */ ! 1587: #undef DECLARE_ASM_NAME ! 1588: #define DECLARE_ASM_NAME TARGET_SVR4 ! 1589: ! 1590: /* Write the extra assembler code needed to declare a function properly. */ ! 1591: #undef ASM_DECLARE_FUNCTION_NAME ! 1592: #define ASM_DECLARE_FUNCTION_NAME(FILE, NAME, DECL) \ ! 1593: do { \ ! 1594: if (DECLARE_ASM_NAME) \ ! 1595: { \ ! 1596: fprintf (FILE, "%s\t ", TYPE_ASM_OP); \ ! 1597: assemble_name (FILE, NAME); \ ! 1598: putc (',', FILE); \ ! 1599: fprintf (FILE, TYPE_OPERAND_FMT, "function"); \ ! 1600: putc ('\n', FILE); \ ! 1601: } \ ! 1602: ASM_OUTPUT_LABEL(FILE, NAME); \ ! 1603: } while (0) ! 1604: ! 1605: /* Write the extra assembler code needed to declare an object properly. */ ! 1606: #undef ASM_DECLARE_OBJECT_NAME ! 1607: #define ASM_DECLARE_OBJECT_NAME(FILE, NAME, DECL) \ ! 1608: do { \ ! 1609: if (DECLARE_ASM_NAME) \ ! 1610: { \ ! 1611: fprintf (FILE, "%s\t ", TYPE_ASM_OP); \ ! 1612: assemble_name (FILE, NAME); \ ! 1613: putc (',', FILE); \ ! 1614: fprintf (FILE, TYPE_OPERAND_FMT, "object"); \ ! 1615: putc ('\n', FILE); \ ! 1616: if (!flag_inhibit_size_directive) \ ! 1617: { \ ! 1618: fprintf (FILE, "%s\t ", SIZE_ASM_OP); \ ! 1619: assemble_name (FILE, NAME); \ ! 1620: fprintf (FILE, ",%d\n", int_size_in_bytes (TREE_TYPE (decl))); \ ! 1621: } \ ! 1622: } \ ! 1623: ASM_OUTPUT_LABEL(FILE, NAME); \ ! 1624: } while (0) ! 1625: ! 1626: /* This is how to declare the size of a function. */ ! 1627: #undef ASM_DECLARE_FUNCTION_SIZE ! 1628: #define ASM_DECLARE_FUNCTION_SIZE(FILE, FNAME, DECL) \ ! 1629: do { \ ! 1630: if (DECLARE_ASM_NAME) \ ! 1631: { \ ! 1632: if (!flag_inhibit_size_directive) \ ! 1633: { \ ! 1634: char label[256]; \ ! 1635: static int labelno; \ ! 1636: labelno++; \ ! 1637: ASM_GENERATE_INTERNAL_LABEL (label, "Lfe", labelno); \ ! 1638: ASM_OUTPUT_INTERNAL_LABEL (FILE, "Lfe", labelno); \ ! 1639: fprintf (FILE, "%s\t ", SIZE_ASM_OP); \ ! 1640: assemble_name (FILE, (FNAME)); \ ! 1641: fprintf (FILE, ",%s-", &label[1]); \ ! 1642: assemble_name (FILE, (FNAME)); \ ! 1643: putc ('\n', FILE); \ ! 1644: } \ ! 1645: } \ ! 1646: } while (0) ! 1647: ! 1648: /* This is how to output the definition of a user-level label named NAME, ! 1649: such as the label on a static function or variable NAME. */ ! 1650: #define ASM_OUTPUT_LABEL(FILE,NAME) \ ! 1651: do { assemble_name (FILE, NAME); fputs (":\n", FILE); } while (0) ! 1652: ! 1653: /* This is how to output a command to make the user-level label named NAME ! 1654: defined for reference from other files. */ ! 1655: #define ASM_GLOBALIZE_LABEL(FILE,NAME) \ ! 1656: do { \ ! 1657: fprintf (FILE, "%s\t ", GLOBAL_ASM_OP); \ ! 1658: assemble_name (FILE, NAME); \ ! 1659: putc ('\n', FILE); \ ! 1660: } while (0) ! 1661: ! 1662: /* This is how to output a reference to a user-level label named NAME. ! 1663: Override svr[34].h. */ ! 1664: #undef ASM_OUTPUT_LABELREF ! 1665: #define ASM_OUTPUT_LABELREF(FILE,NAME) \ ! 1666: { \ ! 1667: if (! TARGET_NO_UNDERSCORES && ! VERSION_0300_SYNTAX) \ ! 1668: fputc ('_', FILE); \ ! 1669: fputs (NAME, FILE); \ ! 1670: } ! 1671: ! 1672: /* This is how to output an internal numbered label where ! 1673: PREFIX is the class of label and NUM is the number within the class. ! 1674: For V.4, labels use `.' rather than `@'. */ ! 1675: ! 1676: #ifdef AS_BUG_DOT_LABELS /* The assembler requires a declaration of local. */ ! 1677: #define ASM_OUTPUT_INTERNAL_LABEL(FILE,PREFIX,NUM) \ ! 1678: fprintf (FILE, VERSION_0300_SYNTAX ? ".%s%d:\n%s\t .%s%d\n" : "@%s%d:\n", \ ! 1679: PREFIX, NUM, INTERNAL_ASM_OP, PREFIX, NUM) ! 1680: #else ! 1681: #define ASM_OUTPUT_INTERNAL_LABEL(FILE,PREFIX,NUM) \ ! 1682: fprintf (FILE, VERSION_0300_SYNTAX ? ".%s%d:\n" : "@%s%d:\n", PREFIX, NUM) ! 1683: #endif /* AS_BUG_DOT_LABELS */ ! 1684: ! 1685: /* This is how to store into the string LABEL ! 1686: the symbol_ref name of an internal numbered label where ! 1687: PREFIX is the class of label and NUM is the number within the class. ! 1688: This is suitable for output with `assemble_name'. This must agree ! 1689: with ASM_OUTPUT_INTERNAL_LABEL above, except for being prefixed ! 1690: with an `*'. */ ! 1691: ! 1692: #define ASM_GENERATE_INTERNAL_LABEL(LABEL,PREFIX,NUM) \ ! 1693: sprintf (LABEL, VERSION_0300_SYNTAX ? "*.%s%d" : "*@%s%d", PREFIX, NUM) ! 1694: ! 1695: /* Internal macro to get a single precision floating point value into ! 1696: an int, so we can print it's value in hex. */ ! 1697: #define FLOAT_TO_INT_INTERNAL( FVALUE, IVALUE ) \ ! 1698: { union { \ ! 1699: REAL_VALUE_TYPE d; \ ! 1700: struct { \ ! 1701: unsigned sign : 1; \ ! 1702: unsigned exponent1 : 1; \ ! 1703: unsigned exponent2 : 3; \ ! 1704: unsigned exponent3 : 7; \ ! 1705: unsigned mantissa1 : 20; \ ! 1706: unsigned mantissa2 : 3; \ ! 1707: unsigned mantissa3 : 29; \ ! 1708: } s; \ ! 1709: } _u; \ ! 1710: \ ! 1711: union { \ ! 1712: int i; \ ! 1713: struct { \ ! 1714: unsigned sign : 1; \ ! 1715: unsigned exponent1 : 1; \ ! 1716: unsigned exponent3 : 7; \ ! 1717: unsigned mantissa1 : 20; \ ! 1718: unsigned mantissa2 : 3; \ ! 1719: } s; \ ! 1720: } _u2; \ ! 1721: \ ! 1722: _u.d = REAL_VALUE_TRUNCATE (SFmode, FVALUE); \ ! 1723: _u2.s.sign = _u.s.sign; \ ! 1724: _u2.s.exponent1 = _u.s.exponent1; \ ! 1725: _u2.s.exponent3 = _u.s.exponent3; \ ! 1726: _u2.s.mantissa1 = _u.s.mantissa1; \ ! 1727: _u2.s.mantissa2 = _u.s.mantissa2; \ ! 1728: IVALUE = _u2.i; \ ! 1729: } ! 1730: ! 1731: /* This is how to output an assembler line defining a `double' constant. ! 1732: Use "word" pseudos to avoid printing NaNs, infinity, etc. */ ! 1733: #define ASM_OUTPUT_DOUBLE(FILE,VALUE) \ ! 1734: do { \ ! 1735: union { REAL_VALUE_TYPE d; long l[2]; } x; \ ! 1736: x.d = (VALUE); \ ! 1737: fprintf (FILE, "%s\t 0x%.8x, 0x%.8x\n", INT_ASM_OP, \ ! 1738: x.l[0], x.l[1]); \ ! 1739: } while (0) ! 1740: ! 1741: /* This is how to output an assembler line defining a `float' constant. */ ! 1742: #define ASM_OUTPUT_FLOAT(FILE,VALUE) \ ! 1743: do { \ ! 1744: int i; \ ! 1745: FLOAT_TO_INT_INTERNAL (VALUE, i); \ ! 1746: fprintf (FILE, "%s\t 0x%.8x\n", INT_ASM_OP, i); \ ! 1747: } while (0) ! 1748: ! 1749: /* Likewise for `int', `short', and `char' constants. */ ! 1750: #define ASM_OUTPUT_INT(FILE,VALUE) \ ! 1751: ( fprintf (FILE, "%s\t ", INT_ASM_OP), \ ! 1752: output_addr_const (FILE, (VALUE)), \ ! 1753: fprintf (FILE, "\n")) ! 1754: ! 1755: #define ASM_OUTPUT_SHORT(FILE,VALUE) \ ! 1756: ( fprintf (FILE, "%s\t ", SHORT_ASM_OP), \ ! 1757: output_addr_const (FILE, (VALUE)), \ ! 1758: fprintf (FILE, "\n")) ! 1759: ! 1760: #define ASM_OUTPUT_CHAR(FILE,VALUE) \ ! 1761: ( fprintf (FILE, "%s\t ", CHAR_ASM_OP), \ ! 1762: output_addr_const (FILE, (VALUE)), \ ! 1763: fprintf (FILE, "\n")) ! 1764: ! 1765: /* This is how to output an assembler line for a numeric constant byte. */ ! 1766: #define ASM_OUTPUT_BYTE(FILE,VALUE) \ ! 1767: fprintf (FILE, "%s\t 0x%x\n", CHAR_ASM_OP, (VALUE)) ! 1768: ! 1769: /* The singl-byte pseudo-op is the default. Override svr[34].h. */ ! 1770: #undef ASM_BYTE_OP ! 1771: #define ASM_BYTE_OP "\tbyte" ! 1772: #undef ASM_OUTPUT_ASCII ! 1773: #define ASM_OUTPUT_ASCII(FILE, P, SIZE) \ ! 1774: output_ascii ((FILE), (P), (SIZE)) ! 1775: ! 1776: /* Epilogue for case labels. This jump instruction is called by casesi ! 1777: to transfer to the appropriate branch instruction within the table. ! 1778: The label `@L<n>e' is coined to mark the end of the table. */ ! 1779: #define ASM_OUTPUT_CASE_END(FILE, NUM, TABLE) \ ! 1780: do { \ ! 1781: char label[256]; \ ! 1782: ASM_GENERATE_INTERNAL_LABEL (label, "L", NUM); \ ! 1783: fprintf (FILE, "%se:\n", &label[1]); \ ! 1784: if (! flag_delayed_branch) \ ! 1785: fprintf (FILE, "\tlda\t %s,%s[%s]\n", reg_names[1], reg_names[1], \ ! 1786: reg_names[m88k_case_index]); \ ! 1787: fprintf (FILE, "\tjmp\t %s\n", reg_names[1]); \ ! 1788: } while (0) ! 1789: ! 1790: /* This is how to output an element of a case-vector that is absolute. */ ! 1791: #define ASM_OUTPUT_ADDR_VEC_ELT(FILE, VALUE) \ ! 1792: do { \ ! 1793: char buffer[256]; \ ! 1794: ASM_GENERATE_INTERNAL_LABEL (buffer, "L", VALUE); \ ! 1795: fprintf (FILE, "\tbr\t %s\n", &buffer[1]); \ ! 1796: } while (0) ! 1797: ! 1798: /* This is how to output an element of a case-vector that is relative. */ ! 1799: #define ASM_OUTPUT_ADDR_DIFF_ELT(FILE, VALUE, REL) \ ! 1800: ASM_OUTPUT_ADDR_VEC_ELT (FILE, VALUE) ! 1801: ! 1802: /* This is how to output an assembler line ! 1803: that says to advance the location counter ! 1804: to a multiple of 2**LOG bytes. */ ! 1805: #define ASM_OUTPUT_ALIGN(FILE,LOG) \ ! 1806: if ((LOG) != 0) \ ! 1807: fprintf (FILE, "%s\t %d\n", ALIGN_ASM_OP, 1<<(LOG)) ! 1808: ! 1809: /* Align the text address to half a cache boundary when it can only be ! 1810: reached by jumping. Pack code tightly when compiling crtstuff.c. */ ! 1811: #define ASM_OUTPUT_ALIGN_CODE(FILE) \ ! 1812: ASM_OUTPUT_ALIGN (FILE, (flag_inhibit_size_directive ? 2 : 3)) ! 1813: ! 1814: /* Override svr[34].h. */ ! 1815: #undef ASM_OUTPUT_SKIP ! 1816: #define ASM_OUTPUT_SKIP(FILE,SIZE) \ ! 1817: fprintf (FILE, "%s\t %u\n", SKIP_ASM_OP, (SIZE)) ! 1818: ! 1819: /* Override svr4.h. */ ! 1820: #undef ASM_OUTPUT_EXTERNAL_LIBCALL ! 1821: ! 1822: /* This says how to output an assembler line to define a global common ! 1823: symbol. Size can be zero for the unusual case of a `struct { int : 0; }'. ! 1824: Override svr[34].h. */ ! 1825: #undef ASM_OUTPUT_COMMON ! 1826: #undef ASM_OUTPUT_ALIGNED_COMMON ! 1827: #define ASM_OUTPUT_COMMON(FILE, NAME, SIZE, ROUNDED) \ ! 1828: ( fprintf ((FILE), "%s\t ", \ ! 1829: (ROUNDED) <= m88k_gp_threshold ? SCOMM_ASM_OP : COMMON_ASM_OP), \ ! 1830: assemble_name ((FILE), (NAME)), \ ! 1831: fprintf ((FILE), ",%u\n", (SIZE) ? (SIZE) : 1)) ! 1832: ! 1833: /* This says how to output an assember line to define a local common ! 1834: symbol. Override svr[34].h. */ ! 1835: #undef ASM_OUTPUT_LOCAL ! 1836: #undef ASM_OUTPUT_ALIGNED_LOCAL ! 1837: #define ASM_OUTPUT_LOCAL(FILE, NAME, SIZE, ROUNDED) \ ! 1838: ( fprintf ((FILE), "%s\t ", \ ! 1839: (ROUNDED) <= m88k_gp_threshold ? SBSS_ASM_OP : LOCAL_ASM_OP), \ ! 1840: assemble_name ((FILE), (NAME)), \ ! 1841: fprintf ((FILE), ",%u,%d\n", (SIZE) ? (SIZE) : 1, (SIZE) <= 4 ? 4 : 8)) ! 1842: ! 1843: /* Store in OUTPUT a string (made with alloca) containing ! 1844: an assembler-name for a local static variable named NAME. ! 1845: LABELNO is an integer which is different for each call. */ ! 1846: #define ASM_FORMAT_PRIVATE_NAME(OUTPUT, NAME, LABELNO) \ ! 1847: ( (OUTPUT) = (char *) alloca (strlen ((NAME)) + 10), \ ! 1848: sprintf ((OUTPUT), "%s.%d", (NAME), (LABELNO))) ! 1849: ! 1850: /* This is how to output an insn to push a register on the stack. ! 1851: It need not be very fast code. */ ! 1852: #define ASM_OUTPUT_REG_PUSH(FILE,REGNO) \ ! 1853: fprintf (FILE, "\tsubu\t %s,%s,%d\n\tst\t %s,%s,0\n", \ ! 1854: reg_names[STACK_POINTER_REGNUM], \ ! 1855: reg_names[STACK_POINTER_REGNUM], \ ! 1856: (STACK_BOUNDARY / BITS_PER_UNIT), \ ! 1857: reg_names[REGNO], \ ! 1858: reg_names[STACK_POINTER_REGNUM]) ! 1859: ! 1860: /* This is how to output an insn to pop a register from the stack. */ ! 1861: #define ASM_OUTPUT_REG_POP(FILE,REGNO) \ ! 1862: fprintf (FILE, "\tld\t %s,%s,0\n\taddu\t %s,%s,%d\n", \ ! 1863: reg_names[REGNO], \ ! 1864: reg_names[STACK_POINTER_REGNUM], \ ! 1865: reg_names[STACK_POINTER_REGNUM], \ ! 1866: reg_names[STACK_POINTER_REGNUM], \ ! 1867: (STACK_BOUNDARY / BITS_PER_UNIT)) ! 1868: ! 1869: /* Define the parentheses used to group arithmetic operations ! 1870: in assembler code. */ ! 1871: #define ASM_OPEN_PAREN "(" ! 1872: #define ASM_CLOSE_PAREN ")" ! 1873: ! 1874: /* Define results of standard character escape sequences. */ ! 1875: #define TARGET_BELL 007 ! 1876: #define TARGET_BS 010 ! 1877: #define TARGET_TAB 011 ! 1878: #define TARGET_NEWLINE 012 ! 1879: #define TARGET_VT 013 ! 1880: #define TARGET_FF 014 ! 1881: #define TARGET_CR 015 ! 1882: ! 1883: /* Macros to deal with OCS debug information */ ! 1884: ! 1885: #define OCS_START_PREFIX "Ltb" ! 1886: #define OCS_END_PREFIX "Lte" ! 1887: ! 1888: #define PUT_OCS_FUNCTION_START(FILE) \ ! 1889: { ASM_OUTPUT_INTERNAL_LABEL (FILE, OCS_START_PREFIX, m88k_function_number); } ! 1890: ! 1891: #define PUT_OCS_FUNCTION_END(FILE) \ ! 1892: { ASM_OUTPUT_INTERNAL_LABEL (FILE, OCS_END_PREFIX, m88k_function_number); } ! 1893: ! 1894: /* Macros for debug information */ ! 1895: #define DEBUGGER_AUTO_OFFSET(X) \ ! 1896: (m88k_debugger_offset (X, 0) \ ! 1897: + (TARGET_OCS_FRAME_POSITION ? 0 : m88k_stack_size - m88k_fp_offset)) ! 1898: ! 1899: #define DEBUGGER_ARG_OFFSET(OFFSET, X) \ ! 1900: (m88k_debugger_offset (X, OFFSET) \ ! 1901: + (TARGET_OCS_FRAME_POSITION ? 0 : m88k_stack_size - m88k_fp_offset)) ! 1902: ! 1903: /* Macros to deal with SDB debug information */ ! 1904: #ifdef SDB_DEBUGGING_INFO ! 1905: ! 1906: /* Output structure tag names even when it causes a forward reference. */ ! 1907: #define SDB_ALLOW_FORWARD_REFERENCES ! 1908: ! 1909: /* Print out extra debug information in the assembler file */ ! 1910: #define PUT_SDB_SCL(a) \ ! 1911: do { \ ! 1912: register int s = (a); \ ! 1913: register char *scl; \ ! 1914: switch (s) \ ! 1915: { \ ! 1916: case C_EFCN: scl = "end of function"; break; \ ! 1917: case C_NULL: scl = "NULL storage class"; break; \ ! 1918: case C_AUTO: scl = "automatic"; break; \ ! 1919: case C_EXT: scl = "external"; break; \ ! 1920: case C_STAT: scl = "static"; break; \ ! 1921: case C_REG: scl = "register"; break; \ ! 1922: case C_EXTDEF: scl = "external definition"; break; \ ! 1923: case C_LABEL: scl = "label"; break; \ ! 1924: case C_ULABEL: scl = "undefined label"; break; \ ! 1925: case C_MOS: scl = "structure member"; break; \ ! 1926: case C_ARG: scl = "argument"; break; \ ! 1927: case C_STRTAG: scl = "structure tag"; break; \ ! 1928: case C_MOU: scl = "union member"; break; \ ! 1929: case C_UNTAG: scl = "union tag"; break; \ ! 1930: case C_TPDEF: scl = "typedef"; break; \ ! 1931: case C_USTATIC: scl = "uninitialized static"; break; \ ! 1932: case C_ENTAG: scl = "enumeration tag"; break; \ ! 1933: case C_MOE: scl = "member of enumeration"; break; \ ! 1934: case C_REGPARM: scl = "register parameter"; break; \ ! 1935: case C_FIELD: scl = "bit field"; break; \ ! 1936: case C_BLOCK: scl = "block start/end"; break; \ ! 1937: case C_FCN: scl = "function start/end"; break; \ ! 1938: case C_EOS: scl = "end of structure"; break; \ ! 1939: case C_FILE: scl = "filename"; break; \ ! 1940: case C_LINE: scl = "line"; break; \ ! 1941: case C_ALIAS: scl = "duplicated tag"; break; \ ! 1942: case C_HIDDEN: scl = "hidden"; break; \ ! 1943: default: scl = "unknown"; break; \ ! 1944: } \ ! 1945: \ ! 1946: fprintf(asm_out_file, "\tscl\t %d\t\t\t\t; %s\n", s, scl); \ ! 1947: } while (0) ! 1948: ! 1949: #define PUT_SDB_TYPE(a) \ ! 1950: do { \ ! 1951: register int t = (a); \ ! 1952: static char buffer[100]; \ ! 1953: register char *p = buffer, *q; \ ! 1954: register int typ = t; \ ! 1955: register int i,d; \ ! 1956: \ ! 1957: for (i = 0; i <= 5; i++) \ ! 1958: { \ ! 1959: switch ((typ >> ((i*N_TSHIFT) + N_BTSHFT)) & 03) \ ! 1960: { \ ! 1961: case DT_PTR: \ ! 1962: strcpy (p, "ptr to "); \ ! 1963: p += sizeof("ptr to"); \ ! 1964: break; \ ! 1965: \ ! 1966: case DT_ARY: \ ! 1967: strcpy (p, "array of "); \ ! 1968: p += sizeof("array of"); \ ! 1969: break; \ ! 1970: \ ! 1971: case DT_FCN: \ ! 1972: strcpy (p, "func ret "); \ ! 1973: p += sizeof("func ret"); \ ! 1974: break; \ ! 1975: } \ ! 1976: } \ ! 1977: \ ! 1978: switch (typ & N_BTMASK) \ ! 1979: { \ ! 1980: case T_NULL: q = "<no type>"; break; \ ! 1981: case T_CHAR: q = "char"; break; \ ! 1982: case T_SHORT: q = "short"; break; \ ! 1983: case T_INT: q = "int"; break; \ ! 1984: case T_LONG: q = "long"; break; \ ! 1985: case T_FLOAT: q = "float"; break; \ ! 1986: case T_DOUBLE: q = "double"; break; \ ! 1987: case T_STRUCT: q = "struct"; break; \ ! 1988: case T_UNION: q = "union"; break; \ ! 1989: case T_ENUM: q = "enum"; break; \ ! 1990: case T_MOE: q = "enum member"; break; \ ! 1991: case T_UCHAR: q = "unsigned char"; break; \ ! 1992: case T_USHORT: q = "unsigned short"; break; \ ! 1993: case T_UINT: q = "unsigned int"; break; \ ! 1994: case T_ULONG: q = "unsigned long"; break; \ ! 1995: default: q = "void"; break; \ ! 1996: } \ ! 1997: \ ! 1998: strcpy (p, q); \ ! 1999: fprintf(asm_out_file, "\ttype\t %d\t\t\t\t; %s\n", \ ! 2000: t, buffer); \ ! 2001: } while (0) ! 2002: ! 2003: #define PUT_SDB_INT_VAL(a) \ ! 2004: fprintf (asm_out_file, "\tval\t %d\n", (a)) ! 2005: ! 2006: #define PUT_SDB_VAL(a) \ ! 2007: ( fprintf (asm_out_file, "\tval\t "), \ ! 2008: output_addr_const (asm_out_file, (a)), \ ! 2009: fputc ('\n', asm_out_file)) ! 2010: ! 2011: #define PUT_SDB_DEF(a) \ ! 2012: do { fprintf (asm_out_file, "\tsdef\t "); \ ! 2013: ASM_OUTPUT_LABELREF (asm_out_file, a); \ ! 2014: fputc ('\n', asm_out_file); \ ! 2015: } while (0) ! 2016: ! 2017: #define PUT_SDB_PLAIN_DEF(a) \ ! 2018: fprintf(asm_out_file,"\tsdef\t .%s\n", a) ! 2019: ! 2020: /* Simply and endef now. */ ! 2021: #define PUT_SDB_ENDEF \ ! 2022: fputs("\tendef\n\n", asm_out_file) ! 2023: ! 2024: #define PUT_SDB_SIZE(a) \ ! 2025: fprintf (asm_out_file, "\tsize\t %d\n", (a)) ! 2026: ! 2027: /* Max dimensions to store for debug information (limited by COFF). */ ! 2028: #define SDB_MAX_DIM 6 ! 2029: ! 2030: /* New method for dim operations. */ ! 2031: #define PUT_SDB_START_DIM \ ! 2032: fputs("\tdim\t ", asm_out_file) ! 2033: ! 2034: /* How to end the DIM sequence. */ ! 2035: #define PUT_SDB_LAST_DIM(a) \ ! 2036: fprintf(asm_out_file, "%d\n", a) ! 2037: ! 2038: #define PUT_SDB_TAG(a) \ ! 2039: do { \ ! 2040: fprintf (asm_out_file, "\ttag\t "); \ ! 2041: ASM_OUTPUT_LABELREF (asm_out_file, a); \ ! 2042: fputc ('\n', asm_out_file); \ ! 2043: } while( 0 ) ! 2044: ! 2045: #define PUT_SDB_BLOCK_OR_FUNCTION(NAME, SCL, LINE) \ ! 2046: do { \ ! 2047: fprintf (asm_out_file, "\n\tsdef\t %s\n\tval\t .\n", \ ! 2048: NAME); \ ! 2049: PUT_SDB_SCL( SCL ); \ ! 2050: fprintf (asm_out_file, "\tline\t %d\n\tendef\n\n", \ ! 2051: (LINE)); \ ! 2052: } while (0) ! 2053: ! 2054: #define PUT_SDB_BLOCK_START(LINE) \ ! 2055: PUT_SDB_BLOCK_OR_FUNCTION (".bb", C_BLOCK, (LINE)) ! 2056: ! 2057: #define PUT_SDB_BLOCK_END(LINE) \ ! 2058: PUT_SDB_BLOCK_OR_FUNCTION (".eb", C_BLOCK, (LINE)) ! 2059: ! 2060: #define PUT_SDB_FUNCTION_START(LINE) \ ! 2061: do { \ ! 2062: fprintf (asm_out_file, "\tln\t 1\n"); \ ! 2063: PUT_SDB_BLOCK_OR_FUNCTION (".bf", C_FCN, (LINE)); \ ! 2064: } while (0) ! 2065: ! 2066: #define PUT_SDB_FUNCTION_END(LINE) \ ! 2067: do { \ ! 2068: PUT_SDB_BLOCK_OR_FUNCTION (".ef", C_FCN, (LINE)); \ ! 2069: } while (0) ! 2070: ! 2071: #define PUT_SDB_EPILOGUE_END(NAME) \ ! 2072: do { \ ! 2073: text_section (); \ ! 2074: fprintf (asm_out_file, "\n\tsdef\t "); \ ! 2075: ASM_OUTPUT_LABELREF(asm_out_file, (NAME)); \ ! 2076: fputc('\n', asm_out_file); \ ! 2077: PUT_SDB_SCL( C_EFCN ); \ ! 2078: fprintf (asm_out_file, "\tendef\n\n"); \ ! 2079: } while (0) ! 2080: ! 2081: #define SDB_GENERATE_FAKE(BUFFER, NUMBER) \ ! 2082: sprintf ((BUFFER), ".%dfake", (NUMBER)); ! 2083: ! 2084: #endif /* SDB_DEBUGGING_INFO */ ! 2085: ! 2086: /* Support const and tdesc sections. Generally, a const section will ! 2087: be distinct from the text section whenever we do V.4-like things ! 2088: and so follows DECLARE_ASM_NAME. Note that strings go in text ! 2089: rather than const. Override svr[34].h. */ ! 2090: ! 2091: #undef USE_CONST_SECTION ! 2092: #undef EXTRA_SECTIONS ! 2093: ! 2094: #define USE_CONST_SECTION DECLARE_ASM_NAME ! 2095: ! 2096: #if defined(CTORS_SECTION_FUNCTION) /* SVR4 */ ! 2097: ! 2098: #define EXTRA_SECTIONS in_const, in_tdesc, in_sdata, in_ctors, in_dtors ! 2099: #define INIT_SECTION_FUNCTION ! 2100: #define FINI_SECTION_FUNCTION ! 2101: ! 2102: #elif defined(FINI_SECTION_FUNCTION) /* SVR3 */ ! 2103: ! 2104: #define EXTRA_SECTIONS in_const, in_tdesc, in_sdata, in_init, in_fini ! 2105: #define CTORS_SECTION_FUNCTION ! 2106: #define DTORS_SECTION_FUNCTION ! 2107: ! 2108: #else /* m88kluna or other not based on svr[34].h. */ ! 2109: ! 2110: #define EXTRA_SECTIONS in_const, in_tdesc, in_sdata ! 2111: #define CONST_SECTION_FUNCTION \ ! 2112: void \ ! 2113: const_section () \ ! 2114: { \ ! 2115: text_section(); \ ! 2116: } ! 2117: #define CTORS_SECTION_FUNCTION ! 2118: #define DTORS_SECTION_FUNCTION ! 2119: #define INIT_SECTION_FUNCTION ! 2120: #define FINI_SECTION_FUNCTION ! 2121: ! 2122: #endif /* CTORS_SECTION_FUNCTION */ ! 2123: ! 2124: #undef EXTRA_SECTION_FUNCTIONS ! 2125: #define EXTRA_SECTION_FUNCTIONS \ ! 2126: CONST_SECTION_FUNCTION \ ! 2127: \ ! 2128: void \ ! 2129: tdesc_section () \ ! 2130: { \ ! 2131: if (in_section != in_tdesc) \ ! 2132: { \ ! 2133: fprintf (asm_out_file, "%s\n", TDESC_SECTION_ASM_OP); \ ! 2134: in_section = in_tdesc; \ ! 2135: } \ ! 2136: } \ ! 2137: \ ! 2138: void \ ! 2139: sdata_section () \ ! 2140: { \ ! 2141: if (in_section != in_sdata) \ ! 2142: { \ ! 2143: fprintf (asm_out_file, "%s\n", SDATA_SECTION_ASM_OP); \ ! 2144: in_section = in_sdata; \ ! 2145: } \ ! 2146: } \ ! 2147: \ ! 2148: CTORS_SECTION_FUNCTION \ ! 2149: DTORS_SECTION_FUNCTION \ ! 2150: INIT_SECTION_FUNCTION \ ! 2151: FINI_SECTION_FUNCTION ! 2152: ! 2153: #undef READONLY_DATA_SECTION ! 2154: ! 2155: /* A C statement or statements to switch to the appropriate ! 2156: section for output of DECL. DECL is either a `VAR_DECL' node ! 2157: or a constant of some sort. RELOC indicates whether forming ! 2158: the initial value of DECL requires link-time relocations. ! 2159: ! 2160: For strings, the section is selected before the segment info is encoded. */ ! 2161: #undef SELECT_SECTION ! 2162: #define SELECT_SECTION(DECL,RELOC) \ ! 2163: { \ ! 2164: if (TREE_CODE (DECL) == STRING_CST) \ ! 2165: { \ ! 2166: if (! flag_writable_strings) \ ! 2167: const_section (); \ ! 2168: else if (m88k_gp_threshold > 0 \ ! 2169: && TREE_STRING_LENGTH (DECL) <= m88k_gp_threshold) \ ! 2170: sdata_section (); \ ! 2171: else \ ! 2172: data_section (); \ ! 2173: } \ ! 2174: else if (TREE_CODE (DECL) == VAR_DECL) \ ! 2175: { \ ! 2176: if (SYMBOL_REF_FLAG (XEXP (DECL_RTL (DECL), 0))) \ ! 2177: sdata_section (); \ ! 2178: else if ((flag_pic && RELOC) \ ! 2179: || !TREE_READONLY (DECL) || TREE_SIDE_EFFECTS (DECL)) \ ! 2180: data_section (); \ ! 2181: else \ ! 2182: const_section (); \ ! 2183: } \ ! 2184: else \ ! 2185: const_section (); \ ! 2186: } ! 2187: ! 2188: /* Define this macro if references to a symbol must be treated differently ! 2189: depending on something about the variable or function named by the ! 2190: symbol (such as what section it is in). ! 2191: ! 2192: The macro definition, if any, is executed immediately after the rtl for ! 2193: DECL has been created and stored in `DECL_RTL (DECL)'. The value of the ! 2194: rtl will be a `mem' whose address is a `symbol_ref'. ! 2195: ! 2196: For the m88k, determine if the item should go in the global pool. */ ! 2197: #define ENCODE_SECTION_INFO(DECL) \ ! 2198: do { \ ! 2199: if (m88k_gp_threshold > 0) \ ! 2200: if (TREE_CODE (DECL) == VAR_DECL) \ ! 2201: { \ ! 2202: if (!TREE_READONLY (DECL) || TREE_SIDE_EFFECTS (DECL)) \ ! 2203: { \ ! 2204: int size = int_size_in_bytes (TREE_TYPE (DECL)); \ ! 2205: \ ! 2206: if (size > 0 && size <= m88k_gp_threshold) \ ! 2207: SYMBOL_REF_FLAG (XEXP (DECL_RTL (DECL), 0)) = 1; \ ! 2208: } \ ! 2209: } \ ! 2210: else if (TREE_CODE (DECL) == STRING_CST \ ! 2211: && flag_writable_strings \ ! 2212: && TREE_STRING_LENGTH (DECL) <= m88k_gp_threshold) \ ! 2213: SYMBOL_REF_FLAG (XEXP (TREE_CST_RTL (DECL), 0)) = 1; \ ! 2214: } while (0) ! 2215: ! 2216: /* Print operand X (an rtx) in assembler syntax to file FILE. ! 2217: CODE is a letter or dot (`z' in `%z0') or 0 if no letter was specified. ! 2218: For `%' followed by punctuation, CODE is the punctuation and X is null. */ ! 2219: #define PRINT_OPERAND_PUNCT_VALID_P(c) \ ! 2220: ((c) == '#' || (c) == '.' || (c) == '!' || (c) == '*' || (c) == ';') ! 2221: ! 2222: #define PRINT_OPERAND(FILE, X, CODE) print_operand (FILE, X, CODE) ! 2223: ! 2224: /* Print a memory address as an operand to reference that memory location. */ ! 2225: #define PRINT_OPERAND_ADDRESS(FILE, ADDR) print_operand_address (FILE, ADDR)
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