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1.1 ! root 1: /* Definitions of target machine for GNU compiler. Vax version. ! 2: Copyright (C) 1987, 1988 Free Software Foundation, Inc. ! 3: ! 4: This file is part of GNU CC. ! 5: ! 6: GNU CC is free software; you can redistribute it and/or modify ! 7: it under the terms of the GNU General Public License as published by ! 8: the Free Software Foundation; either version 1, or (at your option) ! 9: any later version. ! 10: ! 11: GNU CC is distributed in the hope that it will be useful, ! 12: but WITHOUT ANY WARRANTY; without even the implied warranty of ! 13: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ! 14: GNU General Public License for more details. ! 15: ! 16: You should have received a copy of the GNU General Public License ! 17: along with GNU CC; see the file COPYING. If not, write to ! 18: the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ ! 19: ! 20: ! 21: /* Names to predefine in the preprocessor for this target machine. */ ! 22: ! 23: #define CPP_PREDEFINES "-Dvax -Dunix" ! 24: ! 25: /* Print subsidiary information on the compiler version in use. */ ! 26: ! 27: #define TARGET_VERSION fprintf (stderr, " (vax)"); ! 28: ! 29: /* Run-time compilation parameters selecting different hardware subsets. */ ! 30: ! 31: extern int target_flags; ! 32: ! 33: /* Macros used in the machine description to test the flags. */ ! 34: ! 35: /* Nonzero if compiling code that Unix assembler can assemble. */ ! 36: #define TARGET_UNIX_ASM (target_flags & 1) ! 37: ! 38: /* Nonzero if compiling with VAX-11 "C" style structure alignment */ ! 39: #define TARGET_VAXC_ALIGNMENT (target_flags & 2) ! 40: ! 41: /* Nonzero if compiling with `G'-format floating point */ ! 42: #define TARGET_G_FLOAT (target_flags & 4) ! 43: ! 44: /* Macro to define tables used to set the flags. ! 45: This is a list in braces of pairs in braces, ! 46: each pair being { "NAME", VALUE } ! 47: where VALUE is the bits to set or minus the bits to clear. ! 48: An empty string NAME is used to identify the default VALUE. */ ! 49: ! 50: #define TARGET_SWITCHES \ ! 51: { {"unix", 1}, \ ! 52: {"gnu", -1}, \ ! 53: {"vaxc-alignment", 2}, \ ! 54: {"g", 4}, \ ! 55: {"g-float", 4}, \ ! 56: {"d", -4}, \ ! 57: {"d-float", -4}, \ ! 58: { "", TARGET_DEFAULT}} ! 59: ! 60: /* Default target_flags if no switches specified. */ ! 61: ! 62: #ifndef TARGET_DEFAULT ! 63: #define TARGET_DEFAULT 1 ! 64: #endif ! 65: ! 66: #define DOLLARS_IN_IDENTIFIERS 1 ! 67: /* Target machine storage layout */ ! 68: ! 69: /* Define this if most significant bit is lowest numbered ! 70: in instructions that operate on numbered bit-fields. ! 71: This is not true on the vax. */ ! 72: /* #define BITS_BIG_ENDIAN */ ! 73: ! 74: /* Define this if most significant byte of a word is the lowest numbered. */ ! 75: /* That is not true on the vax. */ ! 76: /* #define BYTES_BIG_ENDIAN */ ! 77: ! 78: /* Define this if most significant word of a multiword number is numbered. */ ! 79: /* This is not true on the vax. */ ! 80: /* #define WORDS_BIG_ENDIAN */ ! 81: ! 82: /* Number of bits in an addressible storage unit */ ! 83: #define BITS_PER_UNIT 8 ! 84: ! 85: /* Width in bits of a "word", which is the contents of a machine register. ! 86: Note that this is not necessarily the width of data type `int'; ! 87: if using 16-bit ints on a 68000, this would still be 32. ! 88: But on a machine with 16-bit registers, this would be 16. */ ! 89: #define BITS_PER_WORD 32 ! 90: ! 91: /* Width of a word, in units (bytes). */ ! 92: #define UNITS_PER_WORD 4 ! 93: ! 94: /* Width in bits of a pointer. ! 95: See also the macro `Pmode' defined below. */ ! 96: #define POINTER_SIZE 32 ! 97: ! 98: /* Allocation boundary (in *bits*) for storing pointers in memory. */ ! 99: #define POINTER_BOUNDARY (TARGET_VAXC_ALIGNMENT ? 8 : 32) ! 100: ! 101: /* Allocation boundary (in *bits*) for storing arguments in argument list. */ ! 102: #define PARM_BOUNDARY 32 ! 103: ! 104: /* Allocation boundary (in *bits*) for the code of a function. */ ! 105: #define FUNCTION_BOUNDARY 16 ! 106: ! 107: /* Alignment of field after `int : 0' in a structure. */ ! 108: #define EMPTY_FIELD_BOUNDARY (TARGET_VAXC_ALIGNMENT ? 8 : 32) ! 109: ! 110: /* Every structure's size must be a multiple of this. */ ! 111: #define STRUCTURE_SIZE_BOUNDARY 8 ! 112: ! 113: /* A bitfield declared as `int' forces `int' alignment for the struct. */ ! 114: #define PCC_BITFIELD_TYPE_MATTERS ! 115: ! 116: /* No data type wants to be aligned rounder than this. */ ! 117: #define BIGGEST_ALIGNMENT (TARGET_VAXC_ALIGNMENT ? 8 : 32) ! 118: ! 119: /* Define this if move instructions will actually fail to work ! 120: when given unaligned data. */ ! 121: /* #define STRICT_ALIGNMENT */ ! 122: ! 123: /* Standard register usage. */ ! 124: ! 125: /* Number of actual hardware registers. ! 126: The hardware registers are assigned numbers for the compiler ! 127: from 0 to just below FIRST_PSEUDO_REGISTER. ! 128: All registers that the compiler knows about must be given numbers, ! 129: even those that are not normally considered general registers. */ ! 130: #define FIRST_PSEUDO_REGISTER 16 ! 131: ! 132: /* 1 for registers that have pervasive standard uses ! 133: and are not available for the register allocator. ! 134: On the vax, these are the AP, FP, SP and PC. */ ! 135: #define FIXED_REGISTERS {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1} ! 136: ! 137: /* 1 for registers not available across function calls. ! 138: These must include the FIXED_REGISTERS and also any ! 139: registers that can be used without being saved. ! 140: The latter must include the registers where values are returned ! 141: and the register where structure-value addresses are passed. ! 142: Aside from that, you can include as many other registers as you like. */ ! 143: #define CALL_USED_REGISTERS {1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1} ! 144: ! 145: /* Return number of consecutive hard regs needed starting at reg REGNO ! 146: to hold something of mode MODE. ! 147: This is ordinarily the length in words of a value of mode MODE ! 148: but can be less for certain modes in special long registers. ! 149: On the vax, all registers are one word long. */ ! 150: #define HARD_REGNO_NREGS(REGNO, MODE) \ ! 151: ((GET_MODE_SIZE (MODE) + UNITS_PER_WORD - 1) / UNITS_PER_WORD) ! 152: ! 153: /* Value is 1 if hard register REGNO can hold a value of machine-mode MODE. ! 154: On the vax, all registers can hold all modes. */ ! 155: #define HARD_REGNO_MODE_OK(REGNO, MODE) 1 ! 156: ! 157: /* Value is 1 if it is a good idea to tie two pseudo registers ! 158: when one has mode MODE1 and one has mode MODE2. ! 159: If HARD_REGNO_MODE_OK could produce different values for MODE1 and MODE2, ! 160: for any hard reg, then this must be 0 for correct output. */ ! 161: #define MODES_TIEABLE_P(MODE1, MODE2) 1 ! 162: ! 163: /* Specify the registers used for certain standard purposes. ! 164: The values of these macros are register numbers. */ ! 165: ! 166: /* Vax pc is overloaded on a register. */ ! 167: #define PC_REGNUM 15 ! 168: ! 169: /* Register to use for pushing function arguments. */ ! 170: #define STACK_POINTER_REGNUM 14 ! 171: ! 172: /* Base register for access to local variables of the function. */ ! 173: #define FRAME_POINTER_REGNUM 13 ! 174: ! 175: /* Value should be nonzero if functions must have frame pointers. ! 176: Zero means the frame pointer need not be set up (and parms ! 177: may be accessed via the stack pointer) in functions that seem suitable. ! 178: This is computed in `reload', in reload1.c. */ ! 179: #define FRAME_POINTER_REQUIRED 1 ! 180: ! 181: /* Base register for access to arguments of the function. */ ! 182: #define ARG_POINTER_REGNUM 12 ! 183: ! 184: /* Register in which static-chain is passed to a function. */ ! 185: #define STATIC_CHAIN_REGNUM 0 ! 186: ! 187: /* Register in which address to store a structure value ! 188: is passed to a function. */ ! 189: #define STRUCT_VALUE_REGNUM 1 ! 190: ! 191: /* Define the classes of registers for register constraints in the ! 192: machine description. Also define ranges of constants. ! 193: ! 194: One of the classes must always be named ALL_REGS and include all hard regs. ! 195: If there is more than one class, another class must be named NO_REGS ! 196: and contain no registers. ! 197: ! 198: The name GENERAL_REGS must be the name of a class (or an alias for ! 199: another name such as ALL_REGS). This is the class of registers ! 200: that is allowed by "g" or "r" in a register constraint. ! 201: Also, registers outside this class are allocated only when ! 202: instructions express preferences for them. ! 203: ! 204: The classes must be numbered in nondecreasing order; that is, ! 205: a larger-numbered class must never be contained completely ! 206: in a smaller-numbered class. ! 207: ! 208: For any two classes, it is very desirable that there be another ! 209: class that represents their union. */ ! 210: ! 211: /* The vax has only one kind of registers, so NO_REGS and ALL_REGS ! 212: are the only classes. */ ! 213: ! 214: enum reg_class { NO_REGS, ALL_REGS, LIM_REG_CLASSES }; ! 215: ! 216: #define N_REG_CLASSES (int) LIM_REG_CLASSES ! 217: ! 218: /* Since GENERAL_REGS is the same class as ALL_REGS, ! 219: don't give it a different class number; just make it an alias. */ ! 220: ! 221: #define GENERAL_REGS ALL_REGS ! 222: ! 223: /* Give names of register classes as strings for dump file. */ ! 224: ! 225: #define REG_CLASS_NAMES \ ! 226: {"NO_REGS", "ALL_REGS" } ! 227: ! 228: /* Define which registers fit in which classes. ! 229: This is an initializer for a vector of HARD_REG_SET ! 230: of length N_REG_CLASSES. */ ! 231: ! 232: #define REG_CLASS_CONTENTS {0, 0xffff} ! 233: ! 234: /* The same information, inverted: ! 235: Return the class number of the smallest class containing ! 236: reg number REGNO. This could be a conditional expression ! 237: or could index an array. */ ! 238: ! 239: #define REGNO_REG_CLASS(REGNO) ALL_REGS ! 240: ! 241: /* The class value for index registers, and the one for base regs. */ ! 242: ! 243: #define INDEX_REG_CLASS ALL_REGS ! 244: #define BASE_REG_CLASS ALL_REGS ! 245: ! 246: /* Get reg_class from a letter such as appears in the machine description. */ ! 247: ! 248: #define REG_CLASS_FROM_LETTER(C) NO_REGS ! 249: ! 250: /* The letters I, J, K, L and M in a register constraint string ! 251: can be used to stand for particular ranges of immediate operands. ! 252: This macro defines what the ranges are. ! 253: C is the letter, and VALUE is a constant value. ! 254: Return 1 if VALUE is in the range specified by C. */ ! 255: ! 256: #define CONST_OK_FOR_LETTER_P(VALUE, C) 0 ! 257: ! 258: /* Similar, but for floating constants, and defining letters G and H. ! 259: Here VALUE is the CONST_DOUBLE rtx itself. */ ! 260: ! 261: #define CONST_DOUBLE_OK_FOR_LETTER_P(VALUE, C) 1 ! 262: ! 263: /* Given an rtx X being reloaded into a reg required to be ! 264: in class CLASS, return the class of reg to actually use. ! 265: In general this is just CLASS; but on some machines ! 266: in some cases it is preferable to use a more restrictive class. */ ! 267: ! 268: #define PREFERRED_RELOAD_CLASS(X,CLASS) (CLASS) ! 269: ! 270: /* Return the maximum number of consecutive registers ! 271: needed to represent mode MODE in a register of class CLASS. */ ! 272: /* On the vax, this is always the size of MODE in words, ! 273: since all registers are the same size. */ ! 274: #define CLASS_MAX_NREGS(CLASS, MODE) \ ! 275: ((GET_MODE_SIZE (MODE) + UNITS_PER_WORD - 1) / UNITS_PER_WORD) ! 276: ! 277: /* Stack layout; function entry, exit and calling. */ ! 278: ! 279: /* Define this if pushing a word on the stack ! 280: makes the stack pointer a smaller address. */ ! 281: #define STACK_GROWS_DOWNWARD ! 282: ! 283: /* Define this if longjmp restores from saved registers ! 284: rather than from what setjmp saved. */ ! 285: #define LONGJMP_RESTORE_FROM_STACK ! 286: ! 287: /* Define this if the nominal address of the stack frame ! 288: is at the high-address end of the local variables; ! 289: that is, each additional local variable allocated ! 290: goes at a more negative offset in the frame. */ ! 291: #define FRAME_GROWS_DOWNWARD ! 292: ! 293: /* Offset within stack frame to start allocating local variables at. ! 294: If FRAME_GROWS_DOWNWARD, this is the offset to the END of the ! 295: first local allocated. Otherwise, it is the offset to the BEGINNING ! 296: of the first local allocated. */ ! 297: #define STARTING_FRAME_OFFSET 0 ! 298: ! 299: /* If we generate an insn to push BYTES bytes, ! 300: this says how many the stack pointer really advances by. ! 301: On the vax, -(sp) pushes only the bytes of the operands. */ ! 302: #define PUSH_ROUNDING(BYTES) (BYTES) ! 303: ! 304: /* Offset of first parameter from the argument pointer register value. */ ! 305: #define FIRST_PARM_OFFSET(FNDECL) 4 ! 306: ! 307: /* Value is 1 if returning from a function call automatically ! 308: pops the arguments described by the number-of-args field in the call. ! 309: FUNTYPE is the data type of the function (as a tree), ! 310: or for a library call it is an identifier node for the subroutine name. ! 311: ! 312: On the Vax, the RET insn always pops all the args for any function. */ ! 313: ! 314: #define RETURN_POPS_ARGS(FUNTYPE) 1 ! 315: ! 316: /* Define how to find the value returned by a function. ! 317: VALTYPE is the data type of the value (as a tree). ! 318: If the precise function being called is known, FUNC is its FUNCTION_DECL; ! 319: otherwise, FUNC is 0. */ ! 320: ! 321: /* On the Vax the return value is in R0 regardless. */ ! 322: ! 323: #define FUNCTION_VALUE(VALTYPE, FUNC) \ ! 324: gen_rtx (REG, TYPE_MODE (VALTYPE), 0) ! 325: ! 326: /* Define how to find the value returned by a library function ! 327: assuming the value has mode MODE. */ ! 328: ! 329: /* On the Vax the return value is in R0 regardless. */ ! 330: ! 331: #define LIBCALL_VALUE(MODE) gen_rtx (REG, MODE, 0) ! 332: ! 333: /* Define this if PCC uses the nonreentrant convention for returning ! 334: structure and union values. */ ! 335: ! 336: #define PCC_STATIC_STRUCT_RETURN ! 337: ! 338: /* 1 if N is a possible register number for a function value. ! 339: On the Vax, R0 is the only register thus used. */ ! 340: ! 341: #define FUNCTION_VALUE_REGNO_P(N) ((N) == 0) ! 342: ! 343: /* 1 if N is a possible register number for function argument passing. ! 344: On the Vax, no registers are used in this way. */ ! 345: ! 346: #define FUNCTION_ARG_REGNO_P(N) 0 ! 347: ! 348: /* Define a data type for recording info about an argument list ! 349: during the scan of that argument list. This data type should ! 350: hold all necessary information about the function itself ! 351: and about the args processed so far, enough to enable macros ! 352: such as FUNCTION_ARG to determine where the next arg should go. ! 353: ! 354: On the vax, this is a single integer, which is a number of bytes ! 355: of arguments scanned so far. */ ! 356: ! 357: #define CUMULATIVE_ARGS int ! 358: ! 359: /* Initialize a variable CUM of type CUMULATIVE_ARGS ! 360: for a call to a function whose data type is FNTYPE. ! 361: For a library call, FNTYPE is 0. ! 362: ! 363: On the vax, the offset starts at 0. */ ! 364: ! 365: #define INIT_CUMULATIVE_ARGS(CUM,FNTYPE) \ ! 366: ((CUM) = 0) ! 367: ! 368: /* Update the data in CUM to advance over an argument ! 369: of mode MODE and data type TYPE. ! 370: (TYPE is null for libcalls where that information may not be available.) */ ! 371: ! 372: #define FUNCTION_ARG_ADVANCE(CUM, MODE, TYPE, NAMED) \ ! 373: ((CUM) += ((MODE) != BLKmode \ ! 374: ? (GET_MODE_SIZE (MODE) + 3) & ~3 \ ! 375: : (int_size_in_bytes (TYPE) + 3) & ~3)) ! 376: ! 377: /* Define where to put the arguments to a function. ! 378: Value is zero to push the argument on the stack, ! 379: or a hard register in which to store the argument. ! 380: ! 381: MODE is the argument's machine mode. ! 382: TYPE is the data type of the argument (as a tree). ! 383: This is null for libcalls where that information may ! 384: not be available. ! 385: CUM is a variable of type CUMULATIVE_ARGS which gives info about ! 386: the preceding args and about the function being called. ! 387: NAMED is nonzero if this argument is a named parameter ! 388: (otherwise it is an extra parameter matching an ellipsis). */ ! 389: ! 390: /* On the vax all args are pushed. */ ! 391: ! 392: #define FUNCTION_ARG(CUM, MODE, TYPE, NAMED) 0 ! 393: ! 394: /* This macro generates the assembly code for function entry. ! 395: FILE is a stdio stream to output the code to. ! 396: SIZE is an int: how many units of temporary storage to allocate. ! 397: Refer to the array `regs_ever_live' to determine which registers ! 398: to save; `regs_ever_live[I]' is nonzero if register number I ! 399: is ever used in the function. This macro is responsible for ! 400: knowing which registers should not be saved even if used. */ ! 401: ! 402: #define FUNCTION_PROLOGUE(FILE, SIZE) \ ! 403: { register int regno; \ ! 404: register int mask = 0; \ ! 405: extern char call_used_regs[]; \ ! 406: for (regno = 0; regno < FIRST_PSEUDO_REGISTER; regno++) \ ! 407: if (regs_ever_live[regno] && !call_used_regs[regno]) \ ! 408: mask |= 1 << regno; \ ! 409: fprintf (FILE, "\t.word 0x%x\n", mask); \ ! 410: MAYBE_VMS_FUNCTION_PROLOGUE(FILE) \ ! 411: if ((SIZE) >= 64) fprintf (FILE, "\tmovab %d(sp),sp\n", -SIZE);\ ! 412: else if (SIZE) fprintf (FILE, "\tsubl2 $%d,sp\n", (SIZE)); } ! 413: ! 414: /* tm-vms.h redefines this. */ ! 415: #define MAYBE_VMS_FUNCTION_PROLOGUE(FILE) ! 416: ! 417: /* Output assembler code to FILE to increment profiler label # LABELNO ! 418: for profiling a function entry. */ ! 419: ! 420: #define FUNCTION_PROFILER(FILE, LABELNO) \ ! 421: fprintf (FILE, "\tmovab LP%d,r0\n\tjsb mcount\n", (LABELNO)); ! 422: ! 423: /* EXIT_IGNORE_STACK should be nonzero if, when returning from a function, ! 424: the stack pointer does not matter. The value is tested only in ! 425: functions that have frame pointers. ! 426: No definition is equivalent to always zero. */ ! 427: ! 428: #define EXIT_IGNORE_STACK 1 ! 429: ! 430: /* This macro generates the assembly code for function exit, ! 431: on machines that need it. If FUNCTION_EPILOGUE is not defined ! 432: then individual return instructions are generated for each ! 433: return statement. Args are same as for FUNCTION_PROLOGUE. */ ! 434: ! 435: /* #define FUNCTION_EPILOGUE(FILE, SIZE) */ ! 436: ! 437: /* If the memory address ADDR is relative to the frame pointer, ! 438: correct it to be relative to the stack pointer instead. ! 439: This is for when we don't use a frame pointer. ! 440: ADDR should be a variable name. */ ! 441: ! 442: #define FIX_FRAME_POINTER_ADDRESS(ADDR,DEPTH) abort (); ! 443: ! 444: /* Addressing modes, and classification of registers for them. */ ! 445: ! 446: #define HAVE_POST_INCREMENT ! 447: /* #define HAVE_POST_DECREMENT */ ! 448: ! 449: #define HAVE_PRE_DECREMENT ! 450: /* #define HAVE_PRE_INCREMENT */ ! 451: ! 452: /* Macros to check register numbers against specific register classes. */ ! 453: ! 454: /* These assume that REGNO is a hard or pseudo reg number. ! 455: They give nonzero only if REGNO is a hard reg of the suitable class ! 456: or a pseudo reg currently allocated to a suitable hard reg. ! 457: Since they use reg_renumber, they are safe only once reg_renumber ! 458: has been allocated, which happens in local-alloc.c. */ ! 459: ! 460: #define REGNO_OK_FOR_INDEX_P(regno) \ ! 461: ((regno) < FIRST_PSEUDO_REGISTER || reg_renumber[regno] >= 0) ! 462: #define REGNO_OK_FOR_BASE_P(regno) \ ! 463: ((regno) < FIRST_PSEUDO_REGISTER || reg_renumber[regno] >= 0) ! 464: ! 465: /* Maximum number of registers that can appear in a valid memory address. */ ! 466: ! 467: #define MAX_REGS_PER_ADDRESS 2 ! 468: ! 469: /* 1 if X is an rtx for a constant that is a valid address. */ ! 470: ! 471: #define CONSTANT_ADDRESS_P(X) CONSTANT_P (X) ! 472: ! 473: /* Nonzero if the constant value X is a legitimate general operand. ! 474: It is given that X satisfies CONSTANT_P or is a CONST_DOUBLE. */ ! 475: ! 476: #define LEGITIMATE_CONSTANT_P(X) 1 ! 477: ! 478: /* The macros REG_OK_FOR..._P assume that the arg is a REG rtx ! 479: and check its validity for a certain class. ! 480: We have two alternate definitions for each of them. ! 481: The usual definition accepts all pseudo regs; the other rejects ! 482: them unless they have been allocated suitable hard regs. ! 483: The symbol REG_OK_STRICT causes the latter definition to be used. ! 484: ! 485: Most source files want to accept pseudo regs in the hope that ! 486: they will get allocated to the class that the insn wants them to be in. ! 487: Source files for reload pass need to be strict. ! 488: After reload, it makes no difference, since pseudo regs have ! 489: been eliminated by then. */ ! 490: ! 491: #ifndef REG_OK_STRICT ! 492: ! 493: /* Nonzero if X is a hard reg that can be used as an index ! 494: or if it is a pseudo reg. */ ! 495: #define REG_OK_FOR_INDEX_P(X) 1 ! 496: /* Nonzero if X is a hard reg that can be used as a base reg ! 497: or if it is a pseudo reg. */ ! 498: #define REG_OK_FOR_BASE_P(X) 1 ! 499: ! 500: #else ! 501: ! 502: /* Nonzero if X is a hard reg that can be used as an index. */ ! 503: #define REG_OK_FOR_INDEX_P(X) REGNO_OK_FOR_INDEX_P (REGNO (X)) ! 504: /* Nonzero if X is a hard reg that can be used as a base reg. */ ! 505: #define REG_OK_FOR_BASE_P(X) REGNO_OK_FOR_BASE_P (REGNO (X)) ! 506: ! 507: #endif ! 508: ! 509: /* GO_IF_LEGITIMATE_ADDRESS recognizes an RTL expression ! 510: that is a valid memory address for an instruction. ! 511: The MODE argument is the machine mode for the MEM expression ! 512: that wants to use this address. ! 513: ! 514: The other macros defined here are used only in GO_IF_LEGITIMATE_ADDRESS, ! 515: except for CONSTANT_ADDRESS_P which is actually machine-independent. */ ! 516: ! 517: /* 1 if X is an address that we could indirect through. */ ! 518: #define INDIRECTABLE_ADDRESS_P(X) \ ! 519: (CONSTANT_ADDRESS_P (X) \ ! 520: || (GET_CODE (X) == REG && REG_OK_FOR_BASE_P (X)) \ ! 521: || (GET_CODE (X) == PLUS \ ! 522: && GET_CODE (XEXP (X, 0)) == REG \ ! 523: && REG_OK_FOR_BASE_P (XEXP (X, 0)) \ ! 524: && CONSTANT_ADDRESS_P (XEXP (X, 1)))) ! 525: ! 526: /* Go to ADDR if X is a valid address not using indexing. ! 527: (This much is the easy part.) */ ! 528: #define GO_IF_NONINDEXED_ADDRESS(X, ADDR) \ ! 529: { register rtx xfoob = (X); \ ! 530: if (GET_CODE (xfoob) == REG) goto ADDR; \ ! 531: if (INDIRECTABLE_ADDRESS_P (xfoob)) goto ADDR; \ ! 532: xfoob = XEXP (X, 0); \ ! 533: if (GET_CODE (X) == MEM && INDIRECTABLE_ADDRESS_P (xfoob)) \ ! 534: goto ADDR; \ ! 535: if ((GET_CODE (X) == PRE_DEC || GET_CODE (X) == POST_INC) \ ! 536: && GET_CODE (xfoob) == REG && REG_OK_FOR_BASE_P (xfoob)) \ ! 537: goto ADDR; } ! 538: ! 539: /* 1 if PROD is either a reg times size of mode MODE ! 540: or just a reg, if MODE is just one byte. ! 541: This macro's expansion uses the temporary variables xfoo0 and xfoo1 ! 542: that must be declared in the surrounding context. */ ! 543: #define INDEX_TERM_P(PROD, MODE) \ ! 544: (GET_MODE_SIZE (MODE) == 1 \ ! 545: ? (GET_CODE (PROD) == REG && REG_OK_FOR_BASE_P (PROD)) \ ! 546: : (GET_CODE (PROD) == MULT \ ! 547: && \ ! 548: (xfoo0 = XEXP (PROD, 0), xfoo1 = XEXP (PROD, 1), \ ! 549: ((GET_CODE (xfoo0) == CONST_INT \ ! 550: && INTVAL (xfoo0) == GET_MODE_SIZE (MODE) \ ! 551: && GET_CODE (xfoo1) == REG \ ! 552: && REG_OK_FOR_INDEX_P (xfoo1)) \ ! 553: || \ ! 554: (GET_CODE (xfoo1) == CONST_INT \ ! 555: && INTVAL (xfoo1) == GET_MODE_SIZE (MODE) \ ! 556: && GET_CODE (xfoo0) == REG \ ! 557: && REG_OK_FOR_INDEX_P (xfoo0)))))) ! 558: ! 559: /* Go to ADDR if X is the sum of a register ! 560: and a valid index term for mode MODE. */ ! 561: #define GO_IF_REG_PLUS_INDEX(X, MODE, ADDR) \ ! 562: { register rtx xfooa; \ ! 563: if (GET_CODE (X) == PLUS) \ ! 564: { if (GET_CODE (XEXP (X, 0)) == REG \ ! 565: && REG_OK_FOR_BASE_P (XEXP (X, 0)) \ ! 566: && (xfooa = XEXP (X, 1), \ ! 567: INDEX_TERM_P (xfooa, MODE))) \ ! 568: goto ADDR; \ ! 569: if (GET_CODE (XEXP (X, 1)) == REG \ ! 570: && REG_OK_FOR_BASE_P (XEXP (X, 1)) \ ! 571: && (xfooa = XEXP (X, 0), \ ! 572: INDEX_TERM_P (xfooa, MODE))) \ ! 573: goto ADDR; } } ! 574: ! 575: #define GO_IF_LEGITIMATE_ADDRESS(MODE, X, ADDR) \ ! 576: { register rtx xfoo, xfoo0, xfoo1; \ ! 577: GO_IF_NONINDEXED_ADDRESS (X, ADDR); \ ! 578: if (GET_CODE (X) == PLUS) \ ! 579: { /* Handle <address>[index] represented with index-sum outermost */\ ! 580: xfoo = XEXP (X, 0); \ ! 581: if (INDEX_TERM_P (xfoo, MODE)) \ ! 582: { GO_IF_NONINDEXED_ADDRESS (XEXP (X, 1), ADDR); } \ ! 583: xfoo = XEXP (X, 1); \ ! 584: if (INDEX_TERM_P (xfoo, MODE)) \ ! 585: { GO_IF_NONINDEXED_ADDRESS (XEXP (X, 0), ADDR); } \ ! 586: /* Handle offset(reg)[index] with offset added outermost */ \ ! 587: if (CONSTANT_ADDRESS_P (XEXP (X, 0))) \ ! 588: { if (GET_CODE (XEXP (X, 1)) == REG \ ! 589: && REG_OK_FOR_BASE_P (XEXP (X, 1))) \ ! 590: goto ADDR; \ ! 591: GO_IF_REG_PLUS_INDEX (XEXP (X, 1), MODE, ADDR); } \ ! 592: if (CONSTANT_ADDRESS_P (XEXP (X, 1))) \ ! 593: { if (GET_CODE (XEXP (X, 0)) == REG \ ! 594: && REG_OK_FOR_BASE_P (XEXP (X, 0))) \ ! 595: goto ADDR; \ ! 596: GO_IF_REG_PLUS_INDEX (XEXP (X, 0), MODE, ADDR); } } } ! 597: ! 598: /* Try machine-dependent ways of modifying an illegitimate address ! 599: to be legitimate. If we find one, return the new, valid address. ! 600: This macro is used in only one place: `memory_address' in explow.c. ! 601: ! 602: OLDX is the address as it was before break_out_memory_refs was called. ! 603: In some cases it is useful to look at this to decide what needs to be done. ! 604: ! 605: MODE and WIN are passed so that this macro can use ! 606: GO_IF_LEGITIMATE_ADDRESS. ! 607: ! 608: It is always safe for this macro to do nothing. It exists to recognize ! 609: opportunities to optimize the output. ! 610: ! 611: For the vax, nothing needs to be done. */ ! 612: ! 613: #define LEGITIMIZE_ADDRESS(X,OLDX,MODE,WIN) {} ! 614: ! 615: /* Go to LABEL if ADDR (a legitimate address expression) ! 616: has an effect that depends on the machine mode it is used for. ! 617: On the VAX, the predecrement and postincrement address depend thus ! 618: (the amount of decrement or increment being the length of the operand) ! 619: and all indexed address depend thus (because the index scale factor ! 620: is the length of the operand). */ ! 621: #define GO_IF_MODE_DEPENDENT_ADDRESS(ADDR,LABEL) \ ! 622: { if (GET_CODE (ADDR) == POST_INC || GET_CODE (ADDR) == PRE_DEC) \ ! 623: goto LABEL; \ ! 624: if (GET_CODE (ADDR) == PLUS) \ ! 625: { if (CONSTANT_ADDRESS_P (XEXP (ADDR, 0)) \ ! 626: && GET_CODE (XEXP (ADDR, 1)) == REG); \ ! 627: else if (CONSTANT_ADDRESS_P (XEXP (ADDR, 1)) \ ! 628: && GET_CODE (XEXP (ADDR, 0)) == REG); \ ! 629: else goto LABEL; }} ! 630: ! 631: /* Specify the machine mode that this machine uses ! 632: for the index in the tablejump instruction. */ ! 633: #define CASE_VECTOR_MODE HImode ! 634: ! 635: /* Define this if the case instruction expects the table ! 636: to contain offsets from the address of the table. ! 637: Do not define this if the table should contain absolute addresses. */ ! 638: #define CASE_VECTOR_PC_RELATIVE ! 639: ! 640: /* Define this if the case instruction drops through after the table ! 641: when the index is out of range. Don't define it if the case insn ! 642: jumps to the default label instead. */ ! 643: #define CASE_DROPS_THROUGH ! 644: ! 645: /* Specify the tree operation to be used to convert reals to integers. */ ! 646: #define IMPLICIT_FIX_EXPR FIX_ROUND_EXPR ! 647: ! 648: /* This is the kind of divide that is easiest to do in the general case. */ ! 649: #define EASY_DIV_EXPR TRUNC_DIV_EXPR ! 650: ! 651: /* Define this as 1 if `char' should by default be signed; else as 0. */ ! 652: #define DEFAULT_SIGNED_CHAR 1 ! 653: ! 654: /* This flag, if defined, says the same insns that convert to a signed fixnum ! 655: also convert validly to an unsigned one. */ ! 656: #define FIXUNS_TRUNC_LIKE_FIX_TRUNC ! 657: ! 658: /* Max number of bytes we can move from memory to memory ! 659: in one reasonably fast instruction. */ ! 660: #define MOVE_MAX 8 ! 661: ! 662: /* Define this if zero-extension is slow (more than one real instruction). */ ! 663: /* #define SLOW_ZERO_EXTEND */ ! 664: ! 665: /* Nonzero if access to memory by bytes is slow and undesirable. */ ! 666: #define SLOW_BYTE_ACCESS 0 ! 667: ! 668: /* Define if shifts truncate the shift count ! 669: which implies one can omit a sign-extension or zero-extension ! 670: of a shift count. */ ! 671: /* #define SHIFT_COUNT_TRUNCATED */ ! 672: ! 673: /* Value is 1 if truncating an integer of INPREC bits to OUTPREC bits ! 674: is done just by pretending it is already truncated. */ ! 675: #define TRULY_NOOP_TRUNCATION(OUTPREC, INPREC) 1 ! 676: ! 677: /* Specify the machine mode that pointers have. ! 678: After generation of rtl, the compiler makes no further distinction ! 679: between pointers and any other objects of this machine mode. */ ! 680: #define Pmode SImode ! 681: ! 682: /* A function address in a call instruction ! 683: is a byte address (for indexing purposes) ! 684: so give the MEM rtx a byte's mode. */ ! 685: #define FUNCTION_MODE QImode ! 686: ! 687: /* Compute the cost of computing a constant rtl expression RTX ! 688: whose rtx-code is CODE. The body of this macro is a portion ! 689: of a switch statement. If the code is computed here, ! 690: return it with a return statement. Otherwise, break from the switch. */ ! 691: ! 692: #define CONST_COSTS(RTX,CODE) \ ! 693: case CONST_INT: \ ! 694: /* Constant zero is super cheap due to clr instruction. */ \ ! 695: if (RTX == const0_rtx) return 0; \ ! 696: if ((unsigned) INTVAL (RTX) < 077) return 1; \ ! 697: case CONST: \ ! 698: case LABEL_REF: \ ! 699: case SYMBOL_REF: \ ! 700: return 3; \ ! 701: case CONST_DOUBLE: \ ! 702: return 5; ! 703: ! 704: /* ! 705: * We can use the BSD C library routines for the gnulib calls that are ! 706: * still generated, since that's what they boil down to anyways. ! 707: */ ! 708: ! 709: #define UDIVSI3_LIBCALL "*udiv" ! 710: #define UMODSI3_LIBCALL "*urem" ! 711: ! 712: /* Check a `double' value for validity for a particular machine mode. */ ! 713: ! 714: /* note that it is very hard to accidently create a number that fits in a ! 715: double but not in a float, since their ranges are almost the same */ ! 716: #define CHECK_FLOAT_VALUE(mode, d) \ ! 717: if ((mode) == SFmode) \ ! 718: { \ ! 719: if ((d) > 1.7014117331926443e+38) \ ! 720: { error ("magnitude of constant too large for `float'"); \ ! 721: (d) = 1.7014117331926443e+38; } \ ! 722: else if ((d) < -1.7014117331926443e+38) \ ! 723: { error ("magnitude of constant too large for `float'"); \ ! 724: (d) = -1.7014117331926443e+38; } \ ! 725: else if (((d) > 0) && ((d) < 2.9387358770557188e-39)) \ ! 726: { warning ("`float' constant truncated to zero"); \ ! 727: (d) = 0.0; } \ ! 728: else if (((d) < 0) && ((d) > -2.9387358770557188e-39)) \ ! 729: { warning ("`float' constant truncated to zero"); \ ! 730: (d) = 0.0; } \ ! 731: } ! 732: ! 733: /* For future reference: ! 734: D Float: 9 bit, sign magnitude, excess 128 binary exponent ! 735: normalized 56 bit fraction, redundant bit not represented ! 736: approximately 16 decimal digits of precision ! 737: ! 738: The values to use if we trust decimal to binary conversions: ! 739: #define MAX_D_FLOAT 1.7014118346046923e+38 ! 740: #define MIN_D_FLOAT .29387358770557188e-38 ! 741: ! 742: G float: 12 bit, sign magnitude, excess 1024 binary exponent ! 743: normalized 53 bit fraction, redundant bit not represented ! 744: approximately 15 decimal digits precision ! 745: ! 746: The values to use if we trust decimal to binary conversions: ! 747: #define MAX_G_FLOAT .898846567431157e+308 ! 748: #define MIN_G_FLOAT .556268464626800e-308 ! 749: */ ! 750: ! 751: /* Tell final.c how to eliminate redundant test instructions. */ ! 752: ! 753: /* Here we define machine-dependent flags and fields in cc_status ! 754: (see `conditions.h'). No extra ones are needed for the vax. */ ! 755: ! 756: /* Store in cc_status the expressions ! 757: that the condition codes will describe ! 758: after execution of an instruction whose pattern is EXP. ! 759: Do not alter them if the instruction would not alter the cc's. */ ! 760: ! 761: #define NOTICE_UPDATE_CC(EXP, INSN) \ ! 762: { if (GET_CODE (EXP) == SET) \ ! 763: { if (GET_CODE (SET_SRC (EXP)) == CALL) \ ! 764: CC_STATUS_INIT; \ ! 765: else if (GET_CODE (SET_DEST (EXP)) != PC) \ ! 766: { cc_status.flags = 0; \ ! 767: cc_status.value1 = SET_DEST (EXP); \ ! 768: cc_status.value2 = SET_SRC (EXP); } } \ ! 769: else if (GET_CODE (EXP) == PARALLEL \ ! 770: && GET_CODE (XVECEXP (EXP, 0, 0)) == SET \ ! 771: && GET_CODE (SET_DEST (XVECEXP (EXP, 0, 0))) != PC) \ ! 772: { cc_status.flags = 0; \ ! 773: cc_status.value1 = SET_DEST (XVECEXP (EXP, 0, 0)); \ ! 774: cc_status.value2 = SET_SRC (XVECEXP (EXP, 0, 0)); } \ ! 775: /* PARALLELs whose first element sets the PC are aob, sob insns. \ ! 776: They do change the cc's. So drop through and forget the cc's. */ \ ! 777: else CC_STATUS_INIT; \ ! 778: if (cc_status.value1 && GET_CODE (cc_status.value1) == REG \ ! 779: && cc_status.value2 \ ! 780: && reg_overlap_mentioned_p (cc_status.value1, cc_status.value2)) \ ! 781: cc_status.value2 = 0; \ ! 782: if (cc_status.value1 && GET_CODE (cc_status.value1) == MEM \ ! 783: && cc_status.value2 \ ! 784: && GET_CODE (cc_status.value2) == MEM) \ ! 785: cc_status.value2 = 0; } ! 786: /* Actual condition, one line up, should be that value2's address ! 787: depends on value1, but that is too much of a pain. */ ! 788: ! 789: #define OUTPUT_JUMP(NORMAL, FLOAT, NO_OV) \ ! 790: { if (cc_status.flags & CC_NO_OVERFLOW) \ ! 791: return NO_OV; \ ! 792: return NORMAL; } ! 793: ! 794: /* Control the assembler format that we output. */ ! 795: ! 796: /* Output at beginning of assembler file. */ ! 797: ! 798: #define ASM_FILE_START(FILE) fprintf (FILE, "#NO_APP\n"); ! 799: ! 800: /* Output to assembler file text saying following lines ! 801: may contain character constants, extra white space, comments, etc. */ ! 802: ! 803: #define ASM_APP_ON "#APP\n" ! 804: ! 805: /* Output to assembler file text saying following lines ! 806: no longer contain unusual constructs. */ ! 807: ! 808: #define ASM_APP_OFF "#NO_APP\n" ! 809: ! 810: /* Output before read-only data. */ ! 811: ! 812: #define TEXT_SECTION_ASM_OP ".text" ! 813: ! 814: /* Output before writable data. */ ! 815: ! 816: #define DATA_SECTION_ASM_OP ".data" ! 817: ! 818: /* How to refer to registers in assembler output. ! 819: This sequence is indexed by compiler's hard-register-number (see above). */ ! 820: ! 821: #define REGISTER_NAMES \ ! 822: {"r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7", "r8", \ ! 823: "r9", "r10", "r11", "ap", "fp", "sp", "pc"} ! 824: ! 825: /* This is BSD, so it wants DBX format. */ ! 826: ! 827: #define DBX_DEBUGGING_INFO ! 828: ! 829: /* How to renumber registers for dbx and gdb. ! 830: Vax needs no change in the numeration. */ ! 831: ! 832: #define DBX_REGISTER_NUMBER(REGNO) (REGNO) ! 833: ! 834: /* Do not break .stabs pseudos into continuations. */ ! 835: ! 836: #define DBX_CONTIN_LENGTH 0 ! 837: ! 838: /* This is the char to use for continuation (in case we need to turn ! 839: continuation back on). */ ! 840: ! 841: #define DBX_CONTIN_CHAR '?' ! 842: ! 843: /* Don't use the `xsfoo;' construct in DBX output; this system ! 844: doesn't support it. */ ! 845: ! 846: #define DBX_NO_XREFS ! 847: ! 848: /* Output the .stabs for a C `static' variable in the data section. */ ! 849: #define DBX_STATIC_STAB_DATA_SECTION ! 850: ! 851: /* Vax specific: which type character is used for type double? */ ! 852: ! 853: #define ASM_DOUBLE_CHAR (TARGET_G_FLOAT ? 'g' : 'd') ! 854: ! 855: /* This is how to output the definition of a user-level label named NAME, ! 856: such as the label on a static function or variable NAME. */ ! 857: ! 858: #define ASM_OUTPUT_LABEL(FILE,NAME) \ ! 859: do { assemble_name (FILE, NAME); fputs (":\n", FILE); } while (0) ! 860: ! 861: /* This is how to output a command to make the user-level label named NAME ! 862: defined for reference from other files. */ ! 863: ! 864: #define ASM_GLOBALIZE_LABEL(FILE,NAME) \ ! 865: do { fputs (".globl ", FILE); assemble_name (FILE, NAME); fputs ("\n", FILE);} while (0) ! 866: ! 867: /* This is how to output a reference to a user-level label named NAME. */ ! 868: ! 869: #define ASM_OUTPUT_LABELREF(FILE,NAME) \ ! 870: fprintf (FILE, "_%s", NAME) ! 871: ! 872: /* This is how to output an internal numbered label where ! 873: PREFIX is the class of label and NUM is the number within the class. */ ! 874: ! 875: #define ASM_OUTPUT_INTERNAL_LABEL(FILE,PREFIX,NUM) \ ! 876: fprintf (FILE, "%s%d:\n", PREFIX, NUM) ! 877: ! 878: /* This is how to store into the string LABEL ! 879: the symbol_ref name of an internal numbered label where ! 880: PREFIX is the class of label and NUM is the number within the class. ! 881: This is suitable for output with `assemble_name'. */ ! 882: ! 883: #define ASM_GENERATE_INTERNAL_LABEL(LABEL,PREFIX,NUM) \ ! 884: sprintf (LABEL, "*%s%d", PREFIX, NUM) ! 885: ! 886: /* This is how to output an assembler line defining a `double' constant. ! 887: It is .dfloat or .gfloat, depending. */ ! 888: ! 889: #define ASM_OUTPUT_DOUBLE(FILE,VALUE) \ ! 890: fprintf (FILE, "\t.%cfloat 0%c%.20e\n", ASM_DOUBLE_CHAR, \ ! 891: ASM_DOUBLE_CHAR, (VALUE)) ! 892: ! 893: /* This is how to output an assembler line defining a `float' constant. */ ! 894: ! 895: #define ASM_OUTPUT_FLOAT(FILE,VALUE) \ ! 896: fprintf (FILE, "\t.float 0f%.20e\n", (VALUE)) ! 897: ! 898: /* This is how to output an assembler line defining an `int' constant. */ ! 899: ! 900: #define ASM_OUTPUT_INT(FILE,VALUE) \ ! 901: ( fprintf (FILE, "\t.long "), \ ! 902: output_addr_const (FILE, (VALUE)), \ ! 903: fprintf (FILE, "\n")) ! 904: ! 905: /* Likewise for `char' and `short' constants. */ ! 906: ! 907: #define ASM_OUTPUT_SHORT(FILE,VALUE) \ ! 908: ( fprintf (FILE, "\t.word "), \ ! 909: output_addr_const (FILE, (VALUE)), \ ! 910: fprintf (FILE, "\n")) ! 911: ! 912: #define ASM_OUTPUT_CHAR(FILE,VALUE) \ ! 913: ( fprintf (FILE, "\t.byte "), \ ! 914: output_addr_const (FILE, (VALUE)), \ ! 915: fprintf (FILE, "\n")) ! 916: ! 917: /* This is how to output an assembler line for a numeric constant byte. */ ! 918: ! 919: #define ASM_OUTPUT_BYTE(FILE,VALUE) \ ! 920: fprintf (FILE, "\t.byte 0x%x\n", (VALUE)) ! 921: ! 922: /* This is how to output an insn to push a register on the stack. ! 923: It need not be very fast code. */ ! 924: ! 925: #define ASM_OUTPUT_REG_PUSH(FILE,REGNO) \ ! 926: fprintf (FILE, "\tpushl %s\n", reg_names[REGNO]) ! 927: ! 928: /* This is how to output an insn to pop a register from the stack. ! 929: It need not be very fast code. */ ! 930: ! 931: #define ASM_OUTPUT_REG_POP(FILE,REGNO) \ ! 932: fprintf (FILE, "\tmovl (sp)+,%s\n", reg_names[REGNO]) ! 933: ! 934: /* This is how to output an element of a case-vector that is absolute. ! 935: (The Vax does not use such vectors, ! 936: but we must define this macro anyway.) */ ! 937: ! 938: #define ASM_OUTPUT_ADDR_VEC_ELT(FILE, VALUE) \ ! 939: fprintf (FILE, "\t.long L%d\n", VALUE) ! 940: ! 941: /* This is how to output an element of a case-vector that is relative. */ ! 942: ! 943: #define ASM_OUTPUT_ADDR_DIFF_ELT(FILE, VALUE, REL) \ ! 944: fprintf (FILE, "\t.word L%d-L%d\n", VALUE, REL) ! 945: ! 946: /* This is how to output an assembler line ! 947: that says to advance the location counter ! 948: to a multiple of 2**LOG bytes. */ ! 949: ! 950: #define ASM_OUTPUT_ALIGN(FILE,LOG) \ ! 951: fprintf (FILE, "\t.align %d\n", (LOG)) ! 952: ! 953: /* This is how to output an assembler line ! 954: that says to advance the location counter by SIZE bytes. */ ! 955: ! 956: #define ASM_OUTPUT_SKIP(FILE,SIZE) \ ! 957: fprintf (FILE, "\t.space %d\n", (SIZE)) ! 958: ! 959: /* This says how to output an assembler line ! 960: to define a global common symbol. */ ! 961: ! 962: #define ASM_OUTPUT_COMMON(FILE, NAME, SIZE, ROUNDED) \ ! 963: ( fputs (".comm ", (FILE)), \ ! 964: assemble_name ((FILE), (NAME)), \ ! 965: fprintf ((FILE), ",%d\n", (ROUNDED))) ! 966: ! 967: /* This says how to output an assembler line ! 968: to define a local common symbol. */ ! 969: ! 970: #define ASM_OUTPUT_LOCAL(FILE, NAME, SIZE, ROUNDED) \ ! 971: ( fputs (".lcomm ", (FILE)), \ ! 972: assemble_name ((FILE), (NAME)), \ ! 973: fprintf ((FILE), ",%d\n", (ROUNDED))) ! 974: ! 975: /* Store in OUTPUT a string (made with alloca) containing ! 976: an assembler-name for a local static variable named NAME. ! 977: LABELNO is an integer which is different for each call. */ ! 978: ! 979: #define ASM_FORMAT_PRIVATE_NAME(OUTPUT, NAME, LABELNO) \ ! 980: ( (OUTPUT) = (char *) alloca (strlen ((NAME)) + 10), \ ! 981: sprintf ((OUTPUT), "%s.%d", (NAME), (LABELNO))) ! 982: ! 983: /* Define the parentheses used to group arithmetic operations ! 984: in assembler code. */ ! 985: ! 986: #define ASM_OPEN_PAREN "(" ! 987: #define ASM_CLOSE_PAREN ")" ! 988: ! 989: /* Define results of standard character escape sequences. */ ! 990: #define TARGET_BELL 007 ! 991: #define TARGET_BS 010 ! 992: #define TARGET_TAB 011 ! 993: #define TARGET_NEWLINE 012 ! 994: #define TARGET_VT 013 ! 995: #define TARGET_FF 014 ! 996: #define TARGET_CR 015 ! 997: ! 998: /* Print an instruction operand X on file FILE. ! 999: CODE is the code from the %-spec that requested printing this operand; ! 1000: if `%z3' was used to print operand 3, then CODE is 'z'. ! 1001: On the Vax, the only code used is `#', indicating that either ! 1002: `d' or `g' should be printed, depending on whether we're using dfloat ! 1003: or gfloat. */ ! 1004: ! 1005: #define PRINT_OPERAND_PUNCT_VALID_P(CODE) \ ! 1006: ((CODE) == '#') ! 1007: ! 1008: #define PRINT_OPERAND(FILE, X, CODE) \ ! 1009: { if (CODE == '#') fputc (ASM_DOUBLE_CHAR, FILE); \ ! 1010: else if (GET_CODE (X) == REG) \ ! 1011: fprintf (FILE, "%s", reg_names[REGNO (X)]); \ ! 1012: else if (GET_CODE (X) == MEM) \ ! 1013: output_address (XEXP (X, 0)); \ ! 1014: else if (GET_CODE (X) == CONST_DOUBLE && GET_MODE (X) != DImode) \ ! 1015: { union { double d; int i[2]; } u; \ ! 1016: u.i[0] = CONST_DOUBLE_LOW (X); u.i[1] = CONST_DOUBLE_HIGH (X); \ ! 1017: fprintf (FILE, "$0%c%.20e", ASM_DOUBLE_CHAR, u.d); } \ ! 1018: else { putc ('$', FILE); output_addr_const (FILE, X); }} ! 1019: ! 1020: /* Print a memory operand whose address is X, on file FILE. ! 1021: This uses a function in output-vax.c. */ ! 1022: ! 1023: #define PRINT_OPERAND_ADDRESS(FILE, ADDR) \ ! 1024: print_operand_address (FILE, ADDR) ! 1025:
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