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1.1 ! root 1: /* Definitions of target machine for GNU compiler, for the Motorola 88000 chip. ! 2: Copyright (C) 1988 Free Software Foundation, Inc. ! 3: Contributed by Michael Tiemann ([email protected]) ! 4: ! 5: This file is part of GNU CC. ! 6: ! 7: GNU CC is free software; you can redistribute it and/or modify ! 8: it under the terms of the GNU General Public License as published by ! 9: the Free Software Foundation; either version 1, or (at your option) ! 10: any later version. ! 11: ! 12: GNU CC is distributed in the hope that it will be useful, ! 13: but WITHOUT ANY WARRANTY; without even the implied warranty of ! 14: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ! 15: GNU General Public License for more details. ! 16: ! 17: You should have received a copy of the GNU General Public License ! 18: along with GNU CC; see the file COPYING. If not, write to ! 19: the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ ! 20: ! 21: ! 22: /* Note that some other tm- files include this one and then override ! 23: many of the definitions that relate to assembler syntax. */ ! 24: ! 25: ! 26: /* Names to predefine in the preprocessor for this target machine. */ ! 27: ! 28: #define CPP_PREDEFINES "-Dm88000 -Dm88k" ! 29: ! 30: /* Print subsidiary information on the compiler version in use. */ ! 31: #define TARGET_VERSION fprintf (stderr, " (88k)"); ! 32: ! 33: /* Run-time compilation parameters selecting different hardware subsets. ! 34: ! 35: On the the m88000, we don't yet need any. */ ! 36: ! 37: extern int target_flags; ! 38: ! 39: /* Macro to define tables used to set the flags. ! 40: This is a list in braces of pairs in braces, ! 41: each pair being { "NAME", VALUE } ! 42: where VALUE is the bits to set or minus the bits to clear. ! 43: An empty string NAME is used to identify the default VALUE. */ ! 44: ! 45: #define TARGET_SWITCHES \ ! 46: {{ "", TARGET_DEFAULT}} ! 47: ! 48: #define TARGET_DEFAULT 1 ! 49: ! 50: /* target machine storage layout */ ! 51: ! 52: /* Define this if most significant bit is lowest numbered ! 53: in instructions that operate on numbered bit-fields. */ ! 54: #define BITS_BIG_ENDIAN ! 55: ! 56: /* Define this if most significant byte of a word is the lowest numbered. */ ! 57: /* That is true on the m88000. */ ! 58: #define BYTES_BIG_ENDIAN ! 59: ! 60: /* Define this if most significant word of a multiword number is numbered. */ ! 61: /* For the m88000 we can decide arbitrarily ! 62: since there are no machine instructions for them. */ ! 63: /* #define WORDS_BIG_ENDIAN */ ! 64: ! 65: /* number of bits in an addressible storage unit */ ! 66: #define BITS_PER_UNIT 8 ! 67: ! 68: /* Width in bits of a "word", which is the contents of a machine register. ! 69: Note that this is not necessarily the width of data type `int'; ! 70: if using 16-bit ints on a 68000, this would still be 32. ! 71: But on a machine with 16-bit registers, this would be 16. */ ! 72: #define BITS_PER_WORD 32 ! 73: ! 74: /* Width of a word, in units (bytes). */ ! 75: #define UNITS_PER_WORD 4 ! 76: ! 77: /* Width in bits of a pointer. ! 78: See also the macro `Pmode' defined below. */ ! 79: #define POINTER_SIZE 32 ! 80: ! 81: /* Allocation boundary (in *bits*) for storing pointers in memory. */ ! 82: #define POINTER_BOUNDARY 32 ! 83: ! 84: /* Allocation boundary (in *bits*) for storing arguments in argument list. */ ! 85: #define PARM_BOUNDARY 32 ! 86: ! 87: /* Allocation boundary (in *bits*) for the code of a function. */ ! 88: #define FUNCTION_BOUNDARY 32 ! 89: ! 90: /* Alignment of field after `int : 0' in a structure. */ ! 91: #define EMPTY_FIELD_BOUNDARY 32 ! 92: ! 93: /* No data type wants to be aligned rounder than this. */ ! 94: #define BIGGEST_ALIGNMENT 64 ! 95: ! 96: /* Define this if move instructions will actually fail to work ! 97: when given unaligned data. */ ! 98: #define STRICT_ALIGNMENT ! 99: ! 100: /* Standard register usage. */ ! 101: ! 102: /* Number of actual hardware registers. ! 103: The hardware registers are assigned numbers for the compiler ! 104: from 0 to just below FIRST_PSEUDO_REGISTER. ! 105: All registers that the compiler knows about must be given numbers, ! 106: even those that are not normally considered general registers. ! 107: ! 108: the m88000 has 32 fullword registers. */ ! 109: ! 110: #define FIRST_PSEUDO_REGISTER 32 ! 111: ! 112: /* 1 for registers that have pervasive standard uses ! 113: and are not available for the register allocator. ! 114: ! 115: On the 88000, these are: ! 116: Reg 0 = 0 (hardware). ! 117: Reg 1 = Subroutine return pointer (hardware). ! 118: [Reg 2-9 = Parameter registers (Motorola convention).] ! 119: Reg 25 = condition code register (Gnu). ! 120: Reg 26-29 = reserved by Motorola. ! 121: Reg 30 = frame pointer (software). ! 122: Reg 31 = stack pointer (software). */ ! 123: #define FIXED_REGISTERS \ ! 124: {1, 1, 0, 0, 0, 0, 0, 0, \ ! 125: 0, 0, 0, 0, 0, 0, 0, 0, \ ! 126: 0, 0, 0, 0, 0, 0, 0, 0, \ ! 127: 0, 1, 1, 1, 1, 1, 0, 1} ! 128: ! 129: /* 1 for registers not available across function calls. ! 130: These must include the FIXED_REGISTERS and also any ! 131: registers that can be used without being saved. ! 132: The latter must include the registers where values are returned ! 133: and the register where structure-value addresses are passed. ! 134: Aside from that, you can include as many other registers as you like. */ ! 135: #define CALL_USED_REGISTERS \ ! 136: {1, 1, 1, 1, 1, 1, 1, 1, \ ! 137: 1, 1, 1, 1, 1, 1, 0, 0, \ ! 138: 0, 0, 0, 0, 0, 0, 0, 0, \ ! 139: 0, 1, 1, 1, 1, 1, 0, 1} ! 140: ! 141: /* Return number of consecutive hard regs needed starting at reg REGNO ! 142: to hold something of mode MODE. ! 143: This is ordinarily the length in words of a value of mode MODE ! 144: but can be less for certain modes in special long registers. ! 145: ! 146: On the m88000, ordinary registers hold 32 bits worth; ! 147: a single floating point register is always enough for ! 148: anything that can be stored in them at all. */ ! 149: #define HARD_REGNO_NREGS(REGNO, MODE) \ ! 150: ((GET_MODE_SIZE (MODE) + UNITS_PER_WORD - 1) / UNITS_PER_WORD) ! 151: ! 152: /* Value is 1 if hard register REGNO can hold a value of machine-mode MODE. ! 153: On the m88000, the cpu registers can hold any mode, but doubles ! 154: (and larger) must start and an even register number boundary. */ ! 155: #define HARD_REGNO_MODE_OK(REGNO, MODE) \ ! 156: (GET_MODE_SIZE (MODE) <= 4 || ((REGNO) & 1) == 0) ! 157: ! 158: /* Value is 1 if it is a good idea to tie two pseudo registers ! 159: when one has mode MODE1 and one has mode MODE2. ! 160: If HARD_REGNO_MODE_OK could produce different values for MODE1 and MODE2, ! 161: for any hard reg, then this must be 0 for correct output. */ ! 162: #define MODES_TIEABLE_P(MODE1, MODE2) \ ! 163: (((MODE1) == DFmode || (MODE1) == DImode) \ ! 164: == ((MODE2) == DFmode || (MODE2) == DImode)) ! 165: ! 166: /* Specify the registers used for certain standard purposes. ! 167: The values of these macros are register numbers. */ ! 168: ! 169: /* the m88000 pc isn't overloaded on a register that the compiler knows about. */ ! 170: /* #define PC_REGNUM */ ! 171: ! 172: /* Register to use for pushing function arguments. */ ! 173: #define STACK_POINTER_REGNUM 31 ! 174: ! 175: /* Base register for access to local variables of the function. */ ! 176: #define FRAME_POINTER_REGNUM 30 ! 177: ! 178: /* Value should be nonzero if functions must have frame pointers. ! 179: Zero means the frame pointer need not be set up (and parms ! 180: may be accessed via the stack pointer) in functions that seem suitable. ! 181: This is computed in `reload', in reload1.c. */ ! 182: #define FRAME_POINTER_REQUIRED 0 ! 183: ! 184: /* Base register for access to arguments of the function. */ ! 185: #define ARG_POINTER_REGNUM 30 ! 186: ! 187: /* Register in which static-chain is passed to a function. */ ! 188: /* ??? */ ! 189: #define STATIC_CHAIN_REGNUM 10 ! 190: ! 191: /* Register in which address to store a structure value ! 192: is passed to a function. */ ! 193: #define STRUCT_VALUE_REGNUM 2 ! 194: #define STRUCT_VALUE_STACK_PROTECT_REGNUM 3 ! 195: ! 196: /* Define the classes of registers for register constraints in the ! 197: machine description. Also define ranges of constants. ! 198: ! 199: One of the classes must always be named ALL_REGS and include all hard regs. ! 200: If there is more than one class, another class must be named NO_REGS ! 201: and contain no registers. ! 202: ! 203: The name GENERAL_REGS must be the name of a class (or an alias for ! 204: another name such as ALL_REGS). This is the class of registers ! 205: that is allowed by "g" or "r" in a register constraint. ! 206: Also, registers outside this class are allocated only when ! 207: instructions express preferences for them. ! 208: ! 209: The classes must be numbered in nondecreasing order; that is, ! 210: a larger-numbered class must never be contained completely ! 211: in a smaller-numbered class. ! 212: ! 213: For any two classes, it is very desirable that there be another ! 214: class that represents their union. */ ! 215: ! 216: /* The 88000 has one kind of registers, hence two classes. */ ! 217: ! 218: enum reg_class { NO_REGS, ALL_REGS, LIM_REG_CLASSES }; ! 219: ! 220: #define N_REG_CLASSES (int) LIM_REG_CLASSES ! 221: ! 222: /* Since GENERAL_REGS is the same class as ALL_REGS, ! 223: don't give it a different class number; just make it an alias. */ ! 224: ! 225: #define GENERAL_REGS ALL_REGS ! 226: ! 227: /* Give names of register classes as strings for dump file. */ ! 228: ! 229: #define REG_CLASS_NAMES {"NO_REGS", "ALL_REGS" } ! 230: ! 231: /* Define which registers fit in which classes. ! 232: This is an initializer for a vector of HARD_REG_SET ! 233: of length N_REG_CLASSES. */ ! 234: ! 235: #define REG_CLASS_CONTENTS {0, -1} ! 236: ! 237: /* The same information, inverted: ! 238: Return the class number of the smallest class containing ! 239: reg number REGNO. This could be a conditional expression ! 240: or could index an array. */ ! 241: ! 242: #define REGNO_REG_CLASS(REGNO) ALL_REGS ! 243: ! 244: /* The class value for index registers, and the one for base regs. */ ! 245: #define INDEX_REG_CLASS ALL_REGS ! 246: #define BASE_REG_CLASS ALL_REGS ! 247: ! 248: /* Get reg_class from a letter such as appears in the machine description. */ ! 249: ! 250: #define REG_CLASS_FROM_LETTER(C) NO_REGS ! 251: ! 252: /* The letters I, J, K, L and M in a register constraint string ! 253: can be used to stand for particular ranges of immediate operands. ! 254: This macro defines what the ranges are. ! 255: C is the letter, and VALUE is a constant value. ! 256: Return 1 if VALUE is in the range specified by C. ! 257: ! 258: For the m88000, `I' is used for the range of constants an insn ! 259: can actually contain. ! 260: `J' is used for the range which is just zero (since that is R0). ! 261: `K' is used for the 5-bit operand of a compare insns. */ ! 262: ! 263: #define CONST_OK_FOR_LETTER_P(VALUE, C) \ ! 264: ((C) == 'I' ? (unsigned) (VALUE) < 0x10000 \ ! 265: : (C) == 'J' ? (VALUE) == 0 \ ! 266: : (C) == 'K' ? (unsigned) (VALUE) < 0x20 \ ! 267: : 0) ! 268: ! 269: /* Similar, but for floating constants, and defining letters G and H. ! 270: Here VALUE is the CONST_DOUBLE rtx itself. */ ! 271: ! 272: #define CONST_DOUBLE_OK_FOR_LETTER_P(VALUE, C) \ ! 273: ((C) == 'G' && XINT (VALUE, 0) == 0 && XINT (VALUE, 1) == 0) ! 274: ! 275: /* Given an rtx X being reloaded into a reg required to be ! 276: in class CLASS, return the class of reg to actually use. ! 277: In general this is just CLASS; but on some machines ! 278: in some cases it is preferable to use a more restrictive class. */ ! 279: #define PREFERRED_RELOAD_CLASS(X,CLASS) (CLASS) ! 280: ! 281: /* Return the maximum number of consecutive registers ! 282: needed to represent mode MODE in a register of class CLASS. */ ! 283: #define CLASS_MAX_NREGS(CLASS, MODE) \ ! 284: ((GET_MODE_SIZE (MODE) + UNITS_PER_WORD - 1) / UNITS_PER_WORD) ! 285: ! 286: /* Stack layout; function entry, exit and calling. */ ! 287: ! 288: /* Define this if pushing a word on the stack ! 289: makes the stack pointer a smaller address. */ ! 290: #define STACK_GROWS_DOWNWARD ! 291: ! 292: /* Define this if the nominal address of the stack frame ! 293: is at the high-address end of the local variables; ! 294: that is, each additional local variable allocated ! 295: goes at a more negative offset in the frame. ! 296: ! 297: Do not define this for the Motorola 88000. There are no ! 298: negative literals! */ ! 299: /* #define FRAME_GROWS_DOWNWARD */ ! 300: ! 301: /* Offset within stack frame to start allocating local variables at. ! 302: If FRAME_GROWS_DOWNWARD, this is the offset to the END of the ! 303: first local allocated. Otherwise, it is the offset to the BEGINNING ! 304: of the first local allocated. */ ! 305: #define STARTING_FRAME_OFFSET 0 ! 306: ! 307: /* If we generate an insn to push BYTES bytes, ! 308: this says how many the stack pointer really advances by. ! 309: On the m88000, don't define this because there are no push insns. */ ! 310: /* #define PUSH_ROUNDING(BYTES) */ ! 311: ! 312: /* If BYTES is the size of arguments for a function call, ! 313: return the size of the argument block (which is BYTES suitably rounded). ! 314: Define this only on machines where the entire call block is allocated ! 315: before the args are stored into it. */ ! 316: ! 317: #define ROUND_CALL_BLOCK_SIZE(BYTES) \ ! 318: (((BYTES) + 7) & ~7) ! 319: ! 320: /* Offset of first parameter from the argument pointer register value. */ ! 321: /* For the 88000, this must be non-zero so that addresses of the parms ! 322: can always be distinguished. */ ! 323: #define FIRST_PARM_OFFSET(FNDECL) 0 ! 324: ! 325: /* Value is 1 if returning from a function call automatically ! 326: pops the arguments described by the number-of-args field in the call. ! 327: FUNTYPE is the data type of the function (as a tree), ! 328: or for a library call it is an identifier node for the subroutine name. */ ! 329: ! 330: #define RETURN_POPS_ARGS(FUNTYPE) 0 ! 331: ! 332: /* Define how to find the value returned by a function. ! 333: VALTYPE is the data type of the value (as a tree). ! 334: If the precise function being called is known, FUNC is its FUNCTION_DECL; ! 335: otherwise, FUNC is 0. */ ! 336: ! 337: /* ?? On the m88000 the value is found in the second "output" register. */ ! 338: ! 339: #define FUNCTION_VALUE(VALTYPE, FUNC) \ ! 340: gen_rtx (REG, TYPE_MODE (VALTYPE), 2) ! 341: ! 342: /* ?? But the called function leaves it in the second "input" register. */ ! 343: ! 344: #define FUNCTION_OUTGOING_VALUE(VALTYPE, FUNC) \ ! 345: gen_rtx (REG, TYPE_MODE (VALTYPE), 2) ! 346: ! 347: /* Define how to find the value returned by a library function ! 348: assuming the value has mode MODE. */ ! 349: ! 350: #define LIBCALL_VALUE(MODE) gen_rtx (REG, MODE, 2) ! 351: ! 352: /* 1 if N is a possible register number for a function value ! 353: as seen by the caller. ! 354: On the m88000, the first "output" reg is the only register thus used. */ ! 355: ! 356: #define FUNCTION_VALUE_REGNO_P(N) ((N) == 2) ! 357: ! 358: /* 1 if N is a possible register number for function argument passing. ! 359: On the m88000, these are the "output" registers. */ ! 360: ! 361: #define FUNCTION_ARG_REGNO_P(N) ((N) <= 9 && (N) >= 2) ! 362: ! 363: /* Define a data type for recording info about an argument list ! 364: during the scan of that argument list. This data type should ! 365: hold all necessary information about the function itself ! 366: and about the args processed so far, enough to enable macros ! 367: such as FUNCTION_ARG to determine where the next arg should go. ! 368: ! 369: On the m88000, this is a single integer, which is a number of words ! 370: of arguments scanned so far (including the invisible argument, ! 371: if any, which holds the structure-value-address). ! 372: Thus 8 or more means all following args should go on the stack. */ ! 373: ! 374: #define CUMULATIVE_ARGS int ! 375: ! 376: /* Initialize a variable CUM of type CUMULATIVE_ARGS ! 377: for a call to a function whose data type is FNTYPE. ! 378: For a library call, FNTYPE is 0. ! 379: ! 380: On the m88000, the offset normally starts at 0, but starts at 4 bytes ! 381: when the function gets a structure-value-address as an ! 382: invisible first argument. */ ! 383: ! 384: #define INIT_CUMULATIVE_ARGS(CUM,FNTYPE) \ ! 385: ((CUM) = ((FNTYPE) != 0 && TYPE_MODE (TREE_TYPE (FNTYPE)) == BLKmode)) ! 386: ! 387: /* Update the data in CUM to advance over an argument ! 388: of mode MODE and data type TYPE. ! 389: (TYPE is null for libcalls where that information may not be available.) */ ! 390: ! 391: #define FUNCTION_ARG_ADVANCE(CUM, MODE, TYPE, NAMED) \ ! 392: ((CUM) += ((MODE) != BLKmode \ ! 393: ? (GET_MODE_SIZE (MODE) + 3) / 4 \ ! 394: : (int_size_in_bytes (TYPE) + 3) / 4)) ! 395: ! 396: /* Determine where to put an argument to a function. ! 397: Value is zero to push the argument on the stack, ! 398: or a hard register in which to store the argument. ! 399: ! 400: MODE is the argument's machine mode. ! 401: TYPE is the data type of the argument (as a tree). ! 402: This is null for libcalls where that information may ! 403: not be available. ! 404: CUM is a variable of type CUMULATIVE_ARGS which gives info about ! 405: the preceding args and about the function being called. ! 406: NAMED is nonzero if this argument is a named parameter ! 407: (otherwise it is an extra parameter matching an ellipsis). */ ! 408: ! 409: /* On the m88000 the first eight words of args are normally in registers ! 410: and the rest are pushed. But any arg that won't entirely fit in regs ! 411: is pushed. */ ! 412: ! 413: #define FUNCTION_ARG(CUM, MODE, TYPE, NAMED) \ ! 414: (8 >= ((CUM) \ ! 415: + ((MODE) == BLKmode \ ! 416: ? (int_size_in_bytes (TYPE) + 3) / 4 \ ! 417: : (GET_MODE_SIZE (MODE) + 3) / 4)) \ ! 418: ? gen_rtx (REG, (MODE), 2 + (CUM)) \ ! 419: : 0) ! 420: ! 421: /* Define where a function finds its arguments. ! 422: This would be different from FUNCTION_ARG if we had register windows. */ ! 423: ! 424: #define FUNCTION_INCOMING_ARG(CUM, MODE, TYPE, NAMED) \ ! 425: FUNCTION_ARG (CUM, MODE, TYPE, NAMED) ! 426: ! 427: /* For an arg passed partly in registers and partly in memory, ! 428: this is the number of registers used. ! 429: For args passed entirely in registers or entirely in memory, zero. */ ! 430: ! 431: #define FUNCTION_ARG_PARTIAL_NREGS(CUM, MODE, TYPE, NAMED) 0 ! 432: ! 433: /* This macro generates the assembly code for function entry. ! 434: FILE is a stdio stream to output the code to. ! 435: SIZE is an int: how many units of temporary storage to allocate. ! 436: Refer to the array `regs_ever_live' to determine which registers ! 437: to save; `regs_ever_live[I]' is nonzero if register number I ! 438: is ever used in the function. This macro is responsible for ! 439: knowing which registers should not be saved even if used. */ ! 440: ! 441: #define FUNCTION_PROLOGUE(FILE, SIZE) \ ! 442: { \ ! 443: extern char call_used_regs[]; \ ! 444: extern int current_function_pretend_args_size; \ ! 445: extern int frame_pointer_needed; \ ! 446: int fsize = ((SIZE) + current_function_pretend_args_size + 7) & ~7; \ ! 447: int regno, nregs, i; \ ! 448: int offset = 0; \ ! 449: for (regno = 2, nregs = 0; regno < FRAME_POINTER_REGNUM; regno++) \ ! 450: if (regs_ever_live[regno] && ! call_used_regs[regno]) \ ! 451: nregs++; \ ! 452: nregs = (nregs + 1) & ~1; \ ! 453: if (regs_ever_live[1] + frame_pointer_needed + nregs) \ ! 454: { \ ! 455: if (fsize + 8 + nregs*4 < 0x10000) \ ! 456: offset = fsize; \ ! 457: fprintf (FILE, "\tsub r31,r31,%d\n", 8 + nregs*4 + offset); \ ! 458: } \ ! 459: if (frame_pointer_needed) \ ! 460: fprintf (FILE, "\tst r30,r31,%d\n", offset); \ ! 461: if (regs_ever_live[1]) \ ! 462: fprintf (FILE, "\tst r1,r31,%d\n", 4 + offset); \ ! 463: if (nregs) \ ! 464: for (regno = 2, nregs = 2; regno < FRAME_POINTER_REGNUM; regno++) \ ! 465: if (regs_ever_live[regno] && ! call_used_regs[regno]) \ ! 466: if (regno & 1 || !regs_ever_live[regno+1] || call_used_regs[regno+1])\ ! 467: fprintf (FILE, "\tst r%d,r31,%d\n", regno, offset + nregs++ * 4);\ ! 468: else \ ! 469: { \ ! 470: fprintf (FILE, "\tst.d r%d,r31,%d\n", regno, offset + nregs * 4);\ ! 471: regno += 1; nregs += 2; \ ! 472: } \ ! 473: if (offset || fsize == 0) /* do nothing. */ ; \ ! 474: else if ((unsigned) fsize < 0x10000) \ ! 475: fprintf (FILE, "\tsub r31,r31,%d\n", fsize); \ ! 476: else fprintf (FILE, "\tor.u r25,r0,hi16(%d)\n\tor r25,r0,lo16(%d)\n\tsub r31,r31,r25\n", fsize, fsize); \ ! 477: if (frame_pointer_needed) fprintf (FILE, "\tor r30,r0,r31\n"); \ ! 478: } ! 479: ! 480: /* Output assembler code to FILE to increment profiler label # LABELNO ! 481: for profiling a function entry. */ ! 482: ! 483: #define FUNCTION_PROFILER(FILE, LABELNO) \ ! 484: abort (); ! 485: ! 486: /* EXIT_IGNORE_STACK should be nonzero if, when returning from a function, ! 487: the stack pointer does not matter. The value is tested only in ! 488: functions that have frame pointers. ! 489: No definition is equivalent to always zero. */ ! 490: ! 491: extern int may_call_alloca; ! 492: extern int current_function_pretend_args_size; ! 493: ! 494: #define EXIT_IGNORE_STACK \ ! 495: (get_frame_size () != 0 \ ! 496: || may_call_alloca || current_function_pretend_args_size) ! 497: ! 498: /* This macro generates the assembly code for function exit, ! 499: on machines that need it. If FUNCTION_EPILOGUE is not defined ! 500: then individual return instructions are generated for each ! 501: return statement. Args are same as for FUNCTION_PROLOGUE. ! 502: ! 503: The function epilogue should not depend on the current stack pointer! ! 504: It should use the frame pointer only. This is mandatory because ! 505: of alloca; we also take advantage of it to omit stack adjustments ! 506: before returning. */ ! 507: ! 508: #define FUNCTION_EPILOGUE(FILE, SIZE) \ ! 509: { \ ! 510: extern char call_used_regs[]; \ ! 511: extern int may_call_alloca; \ ! 512: int fsize = ((SIZE) + current_function_pretend_args_size + 7) & ~7; \ ! 513: int nregs, regno, i; \ ! 514: for (regno = 2, nregs = 0; regno < FRAME_POINTER_REGNUM; regno++) \ ! 515: if (regs_ever_live[regno] && ! call_used_regs[regno]) \ ! 516: nregs++; \ ! 517: if (frame_pointer_needed) \ ! 518: { \ ! 519: if ((unsigned) fsize < 0x10000) \ ! 520: fprintf (FILE, "\tadd r31,r30,%d\n", fsize); \ ! 521: else fprintf (FILE, "\tor.u r25,r0,hi16(%d)\n\tor r25,r0,lo16(%d)\n\tadd r31,r30,r25\n", fsize, fsize); \ ! 522: } \ ! 523: else if (fsize) fprintf (FILE, "\tadd r31,r31,%d\n", fsize); \ ! 524: if (nregs) \ ! 525: for (regno = 2, nregs = 2; regno < FRAME_POINTER_REGNUM; regno++) \ ! 526: if (regs_ever_live[regno] && ! call_used_regs[regno]) \ ! 527: if (regno & 1 || !regs_ever_live[regno+1] || call_used_regs[regno+1])\ ! 528: fprintf (FILE, "\tld r%d,r31,%d\n", regno, nregs++ * 4);\ ! 529: else \ ! 530: { \ ! 531: fprintf (FILE, "\tld.d r%d,r31,%d\n", regno, nregs * 4);\ ! 532: regno += 1; nregs += 2; \ ! 533: } \ ! 534: if (regs_ever_live[1]) \ ! 535: fprintf (FILE, "\tld r1,r31,4\n"); \ ! 536: else \ ! 537: fprintf (FILE, ";; r1 is set to go!\n"); \ ! 538: if (frame_pointer_needed) \ ! 539: fprintf (FILE, "\tld r30,r31,0\n"); \ ! 540: nregs = (nregs + 1) & ~1; \ ! 541: if (regs_ever_live[1] + frame_pointer_needed + (nregs > 2)) \ ! 542: fprintf (FILE, "\tjmp.n r1\n\taddu r31,r31,%d\n", nregs * 4); \ ! 543: else fprintf (FILE, "\tjmp r1\n"); \ ! 544: /* let insn reorganizer know that we are at the end of a function. */ \ ! 545: fprintf (FILE, "\tdata\n"); \ ! 546: } ! 547: ! 548: /* If the memory address ADDR is relative to the frame pointer, ! 549: correct it to be relative to the stack pointer instead. ! 550: This is for when we don't use a frame pointer. ! 551: ADDR should be a variable name. */ ! 552: ! 553: #define FIX_FRAME_POINTER_ADDRESS(ADDR,DEPTH) \ ! 554: { int offset = -1; \ ! 555: rtx regs = stack_pointer_rtx; \ ! 556: if (ADDR == frame_pointer_rtx) \ ! 557: offset = 0; \ ! 558: else if (GET_CODE (ADDR) == PLUS && XEXP (ADDR, 0) == frame_pointer_rtx \ ! 559: && GET_CODE (XEXP (ADDR, 1)) == CONST_INT) \ ! 560: offset = INTVAL (XEXP (ADDR, 1)); \ ! 561: else if (GET_CODE (ADDR) == PLUS && XEXP (ADDR, 0) == frame_pointer_rtx) \ ! 562: { rtx other_reg = XEXP (ADDR, 1); \ ! 563: offset = 0; \ ! 564: regs = gen_rtx (PLUS, Pmode, stack_pointer_rtx, other_reg); } \ ! 565: else if (GET_CODE (ADDR) == PLUS && XEXP (ADDR, 1) == frame_pointer_rtx) \ ! 566: { rtx other_reg = XEXP (ADDR, 0); \ ! 567: offset = 0; \ ! 568: regs = gen_rtx (PLUS, Pmode, stack_pointer_rtx, other_reg); } \ ! 569: if (offset >= 0) \ ! 570: { int regno; \ ! 571: extern char call_used_regs[]; \ ! 572: for (regno = 2; regno < FRAME_POINTER_REGNUM; regno++) \ ! 573: if (regs_ever_live[regno] && ! call_used_regs[regno]) \ ! 574: offset += 4; \ ! 575: offset -= 4; \ ! 576: ADDR = plus_constant (regs, offset + (DEPTH)); } } ! 577: ! 578: ! 579: /* Addressing modes, and classification of registers for them. */ ! 580: ! 581: /* #define HAVE_POST_INCREMENT */ ! 582: /* #define HAVE_POST_DECREMENT */ ! 583: ! 584: /* #define HAVE_PRE_DECREMENT */ ! 585: /* #define HAVE_PRE_INCREMENT */ ! 586: ! 587: /* Macros to check register numbers against specific register classes. */ ! 588: ! 589: /* These assume that REGNO is a hard or pseudo reg number. ! 590: They give nonzero only if REGNO is a hard reg of the suitable class ! 591: or a pseudo reg currently allocated to a suitable hard reg. ! 592: Since they use reg_renumber, they are safe only once reg_renumber ! 593: has been allocated, which happens in local-alloc.c. */ ! 594: ! 595: #define REGNO_OK_FOR_INDEX_P(REGNO) \ ! 596: ((REGNO) < 32 || (unsigned) reg_renumber[REGNO] < 32) ! 597: #define REGNO_OK_FOR_BASE_P(REGNO) \ ! 598: ((REGNO) < 32 || (unsigned) reg_renumber[REGNO] < 32) ! 599: ! 600: /* Now macros that check whether X is a register and also, ! 601: strictly, whether it is in a specified class. ! 602: ! 603: These macros are specific to the the m88000, and may be used only ! 604: in code for printing assembler insns and in conditions for ! 605: define_optimization. */ ! 606: ! 607: /* Maximum number of registers that can appear in a valid memory address. */ ! 608: ! 609: #define MAX_REGS_PER_ADDRESS 2 ! 610: ! 611: /* Recognize any constant value that is a valid address. */ ! 612: ! 613: #define CONSTANT_ADDRESS_P(X) CONSTANT_P (X) ! 614: ! 615: /* Nonzero if the constant value X is a legitimate general operand. ! 616: It is given that X satisfies CONSTANT_P or is a CONST_DOUBLE. */ ! 617: ! 618: #define LEGITIMATE_CONSTANT_P(X) (1) ! 619: ! 620: /* The macros REG_OK_FOR..._P assume that the arg is a REG rtx ! 621: and check its validity for a certain class. ! 622: We have two alternate definitions for each of them. ! 623: The usual definition accepts all pseudo regs; the other rejects ! 624: them unless they have been allocated suitable hard regs. ! 625: The symbol REG_OK_STRICT causes the latter definition to be used. ! 626: ! 627: Most source files want to accept pseudo regs in the hope that ! 628: they will get allocated to the class that the insn wants them to be in. ! 629: Source files for reload pass need to be strict. ! 630: After reload, it makes no difference, since pseudo regs have ! 631: been eliminated by then. */ ! 632: ! 633: #ifndef REG_OK_STRICT ! 634: ! 635: /* Nonzero if X is a hard reg that can be used as an index ! 636: or if it is a pseudo reg. */ ! 637: #define REG_OK_FOR_INDEX_P(X) (1) ! 638: /* Nonzero if X is a hard reg that can be used as a base reg ! 639: or if it is a pseudo reg. */ ! 640: #define REG_OK_FOR_BASE_P(X) (1) ! 641: ! 642: #else ! 643: ! 644: /* Nonzero if X is a hard reg that can be used as an index. */ ! 645: #define REG_OK_FOR_INDEX_P(X) REGNO_OK_FOR_INDEX_P (REGNO (X)) ! 646: /* Nonzero if X is a hard reg that can be used as a base reg. */ ! 647: #define REG_OK_FOR_BASE_P(X) REGNO_OK_FOR_BASE_P (REGNO (X)) ! 648: ! 649: #endif ! 650: ! 651: /* GO_IF_LEGITIMATE_ADDRESS recognizes an RTL expression ! 652: that is a valid memory address for an instruction. ! 653: The MODE argument is the machine mode for the MEM expression ! 654: that wants to use this address. ! 655: ! 656: On the m88000, the actual legitimate addresses must be REG+REG or REG+SMALLINT. ! 657: But we can treat a SYMBOL_REF as legitimate if it is part of this ! 658: function's constant-pool, because such addresses can actually ! 659: be output as REG+SMALLINT. */ ! 660: ! 661: #define INT_FITS_16_BITS(I) ((unsigned) (I) < 0x10000) ! 662: ! 663: #define FITS_16_BITS(X) \ ! 664: (GET_CODE (X) == CONST_INT && INT_FITS_16_BITS (INTVAL (X))) ! 665: ! 666: #define LEGITIMATE_INDEX_P(X, MODE) \ ! 667: (FITS_16_BITS (X) \ ! 668: || (REG_P (X) \ ! 669: && REG_OK_FOR_INDEX_P (X)) \ ! 670: || (GET_CODE (X) == MULT \ ! 671: && REG_P (XEXP (X, 0)) \ ! 672: && REG_OK_FOR_INDEX_P (XEXP (X, 0)) \ ! 673: && GET_CODE (XEXP (X, 1)) == CONST_INT \ ! 674: && (INTVAL (XEXP (X, 1)) == GET_MODE_SIZE (MODE))) \ ! 675: || (GET_CODE (X) == MULT \ ! 676: && REG_P (XEXP (X, 1)) \ ! 677: && REG_OK_FOR_INDEX_P (XEXP (X, 1)) \ ! 678: && GET_CODE (XEXP (X, 0)) == CONST_INT \ ! 679: && (INTVAL (XEXP (X, 0)) == GET_MODE_SIZE (MODE)) \ ! 680: && (warning ("MULT backwards"), 1))) ! 681: ! 682: #define GO_IF_LEGITIMATE_ADDRESS(MODE, X, ADDR) \ ! 683: { \ ! 684: if (GET_CODE (X) == CONST_INT) \ ! 685: { \ ! 686: if (FITS_16_BITS (X)) \ ! 687: goto ADDR; \ ! 688: } \ ! 689: else if (CONSTANT_ADDRESS_P (X)) \ ! 690: goto ADDR; \ ! 691: else if (REG_P (X)) \ ! 692: { \ ! 693: if (REG_OK_FOR_BASE_P (X)) \ ! 694: goto ADDR; \ ! 695: } \ ! 696: else if (GET_CODE (X) == PLUS) \ ! 697: if (REG_P (XEXP (X, 0)) \ ! 698: && REG_OK_FOR_BASE_P (XEXP (X, 0))) \ ! 699: { \ ! 700: if (LEGITIMATE_INDEX_P (XEXP (X, 1), MODE)) \ ! 701: goto ADDR; \ ! 702: } \ ! 703: else if (REG_P (XEXP (X, 1)) \ ! 704: && REG_OK_FOR_BASE_P (XEXP (X, 1))) \ ! 705: { \ ! 706: if (LEGITIMATE_INDEX_P (XEXP (X, 0), MODE)) \ ! 707: goto ADDR; \ ! 708: } \ ! 709: } ! 710: ! 711: /* Try machine-dependent ways of modifying an illegitimate address ! 712: to be legitimate. If we find one, return the new, valid address. ! 713: This macro is used in only one place: `memory_address' in explow.c. ! 714: ! 715: OLDX is the address as it was before break_out_memory_refs was called. ! 716: In some cases it is useful to look at this to decide what needs to be done. ! 717: ! 718: MODE and WIN are passed so that this macro can use ! 719: GO_IF_LEGITIMATE_ADDRESS. ! 720: ! 721: It is always safe for this macro to do nothing. It exists to recognize ! 722: opportunities to optimize the output. */ ! 723: ! 724: /* On the m88000, change REG+N into REG+REG, and REG+(X*Y) into REG+REG. */ ! 725: ! 726: #define LEGITIMIZE_ADDRESS(X,OLDX,MODE,WIN) \ ! 727: { if (GET_CODE (X) == PLUS && CONSTANT_ADDRESS_P (XEXP (X, 1))) \ ! 728: (X) = gen_rtx (PLUS, SImode, XEXP (X, 0), \ ! 729: copy_to_mode_reg (SImode, XEXP (X, 1))); \ ! 730: if (GET_CODE (X) == PLUS && CONSTANT_ADDRESS_P (XEXP (X, 0))) \ ! 731: (X) = gen_rtx (PLUS, SImode, XEXP (X, 1), \ ! 732: copy_to_mode_reg (SImode, XEXP (X, 0))); \ ! 733: if (GET_CODE (X) == PLUS && GET_CODE (XEXP (X, 0)) == MULT) \ ! 734: (X) = gen_rtx (PLUS, SImode, XEXP (X, 1), \ ! 735: force_operand (XEXP (X, 0), 0)); \ ! 736: if (GET_CODE (X) == PLUS && GET_CODE (XEXP (X, 1)) == MULT) \ ! 737: (X) = gen_rtx (PLUS, SImode, XEXP (X, 0), \ ! 738: force_operand (XEXP (X, 1), 0)); \ ! 739: if (memory_address_p (MODE, X)) \ ! 740: goto WIN; } ! 741: ! 742: /* Go to LABEL if ADDR (a legitimate address expression) ! 743: has an effect that depends on the machine mode it is used for. ! 744: On the the m88000 this is never true. */ ! 745: ! 746: #define GO_IF_MODE_DEPENDENT_ADDRESS(ADDR,LABEL) ! 747: ! 748: /* Specify the machine mode that this machine uses ! 749: for the index in the tablejump instruction. */ ! 750: #define CASE_VECTOR_MODE SImode ! 751: ! 752: /* Define this if a raw index is all that is needed for a ! 753: `tablejump' insn. */ ! 754: #define CASE_TAKES_INDEX_RAW ! 755: ! 756: /* Define this if the tablejump instruction expects the table ! 757: to contain offsets from the address of the table. ! 758: Do not define this if the table should contain absolute addresses. */ ! 759: /* #define CASE_VECTOR_PC_RELATIVE */ ! 760: ! 761: /* Specify the tree operation to be used to convert reals to integers. */ ! 762: #define IMPLICIT_FIX_EXPR FIX_ROUND_EXPR ! 763: ! 764: /* This is the kind of divide that is easiest to do in the general case. */ ! 765: #define EASY_DIV_EXPR TRUNC_DIV_EXPR ! 766: ! 767: /* Define this as 1 if `char' should by default be signed; else as 0. */ ! 768: #define DEFAULT_SIGNED_CHAR 1 ! 769: ! 770: /* Max number of bytes we can move from memory to memory ! 771: in one reasonably fast instruction. */ ! 772: #define MOVE_MAX 4 ! 773: ! 774: /* Nonzero if access to memory by bytes is slow and undesirable. */ ! 775: #define SLOW_BYTE_ACCESS 0 ! 776: ! 777: /* Do not break .stabs pseudos into continuations. */ ! 778: #define DBX_CONTIN_LENGTH 0 ! 779: ! 780: /* Value is 1 if truncating an integer of INPREC bits to OUTPREC bits ! 781: is done just by pretending it is already truncated. */ ! 782: #define TRULY_NOOP_TRUNCATION(OUTPREC, INPREC) 1 ! 783: ! 784: /* We assume that the store-condition-codes instructions store 0 for false ! 785: and some other value for true. This is the value stored for true. */ ! 786: ! 787: #define STORE_FLAG_VALUE 1 ! 788: ! 789: /* Specify the machine mode that pointers have. ! 790: After generation of rtl, the compiler makes no further distinction ! 791: between pointers and any other objects of this machine mode. */ ! 792: #define Pmode SImode ! 793: ! 794: /* A function address in a call instruction ! 795: is a byte address (for indexing purposes) ! 796: so give the MEM rtx a byte's mode. */ ! 797: #define FUNCTION_MODE SImode ! 798: ! 799: /* Define this if addresses of constant functions ! 800: shouldn't be put through pseudo regs where they can be cse'd. ! 801: Desirable on machines where ordinary constants are expensive ! 802: but a CALL with constant address is cheap. */ ! 803: #define NO_FUNCTION_CSE ! 804: ! 805: /* Compute the cost of computing a constant rtl expression RTX ! 806: whose rtx-code is CODE. The body of this macro is a portion ! 807: of a switch statement. If the code is computed here, ! 808: return it with a return statement. Otherwise, break from the switch. */ ! 809: ! 810: #define CONST_COSTS(RTX,CODE) \ ! 811: case CONST_INT: \ ! 812: if ((unsigned) INTVAL (RTX) < 0x10000) return 1; \ ! 813: case CONST: \ ! 814: case LABEL_REF: \ ! 815: case SYMBOL_REF: \ ! 816: return 2; \ ! 817: case CONST_DOUBLE: \ ! 818: return 4; ! 819: ! 820: /* Tell emit-rtl.c how to initialize special values on a per-function bass. */ ! 821: extern int optimize; ! 822: extern struct rtx_def *cc0_reg_rtx; ! 823: ! 824: typedef struct { struct rtx_def *ccr; } cc_status_mdep; ! 825: #define CC_STATUS_MDEP cc_status_mdep ! 826: ! 827: #define INIT_EMIT_MDEP \ ! 828: { \ ! 829: cc0_reg_rtx = gen_rtx (REG, SImode, 25); \ ! 830: } ! 831: ! 832: /* Tell final.c how to eliminate redundant test instructions. */ ! 833: ! 834: /* Here we define machine-dependent flags and fields in cc_status ! 835: (see `conditions.h'). */ ! 836: ! 837: #define CC_IN_FCCR 04000 ! 838: ! 839: /* Store in cc_status the expressions ! 840: that the condition codes will describe ! 841: after execution of an instruction whose pattern is EXP. ! 842: Do not alter them if the instruction would not alter the cc's. */ ! 843: ! 844: #define NOTICE_UPDATE_CC(EXP, INSN) \ ! 845: { if (GET_CODE (EXP) == SET) \ ! 846: { if (GET_CODE (SET_DEST (EXP)) == CC0) \ ! 847: { cc_status.flags = 0; \ ! 848: cc_status.value1 = SET_DEST (EXP); \ ! 849: cc_status.value2 = SET_SRC (EXP); \ ! 850: } \ ! 851: else if (GET_CODE (SET_DEST (EXP)) == REG) \ ! 852: { if ((cc_status.value1 \ ! 853: && reg_overlap_mentioned_p (SET_DEST (EXP), cc_status.value1))) \ ! 854: cc_status.value1 = 0; \ ! 855: if ((cc_status.value2 \ ! 856: && reg_overlap_mentioned_p (SET_DEST (EXP), cc_status.value2))) \ ! 857: cc_status.value2 = 0; \ ! 858: } \ ! 859: else if (GET_CODE (SET_DEST (EXP)) == MEM) \ ! 860: { CC_STATUS_INIT; } \ ! 861: } \ ! 862: else if (GET_CODE (EXP) == PARALLEL \ ! 863: && GET_CODE (XVECEXP (EXP, 0, 0)) == SET) \ ! 864: { if (GET_CODE (SET_DEST (XVECEXP (EXP, 0, 0))) == CC0) \ ! 865: { cc_status.flags = 0; \ ! 866: cc_status.value1 = SET_DEST (XVECEXP (EXP, 0, 0)); \ ! 867: cc_status.value2 = SET_SRC (XVECEXP (EXP, 0, 0)); \ ! 868: } \ ! 869: else if (GET_CODE (SET_DEST (XVECEXP (EXP, 0, 0))) == REG) \ ! 870: { if ((cc_status.value1 \ ! 871: && reg_overlap_mentioned_p (SET_DEST (XVECEXP (EXP, 0, 0)), cc_status.value1))) \ ! 872: cc_status.value1 = 0; \ ! 873: if ((cc_status.value2 \ ! 874: && reg_overlap_mentioned_p (SET_DEST (XVECEXP (EXP, 0, 0)), cc_status.value2))) \ ! 875: cc_status.value2 = 0; \ ! 876: } \ ! 877: else if (GET_CODE (SET_DEST (XVECEXP (EXP, 0, 0))) == MEM) \ ! 878: { CC_STATUS_INIT; } \ ! 879: } \ ! 880: else if (GET_CODE (EXP) == CALL) \ ! 881: { /* all bets are off */ CC_STATUS_INIT; } \ ! 882: if (cc_status.value1 && GET_CODE (cc_status.value1) == REG \ ! 883: && cc_status.value2 \ ! 884: && reg_overlap_mentioned_p (cc_status.value1, cc_status.value2)) \ ! 885: printf ("here!\n", cc_status.value2 = 0); \ ! 886: } ! 887: ! 888: /* Control the assembler format that we output. */ ! 889: ! 890: /* Output at beginning of assembler file. */ ! 891: ! 892: #define ASM_FILE_START(FILE) ! 893: ! 894: /* Output to assembler file text saying following lines ! 895: may contain character constants, extra white space, comments, etc. */ ! 896: ! 897: #define ASM_APP_ON "" ! 898: ! 899: /* Output to assembler file text saying following lines ! 900: no longer contain unusual constructs. */ ! 901: ! 902: #define ASM_APP_OFF "" ! 903: ! 904: /* Output before read-only data. */ ! 905: ! 906: #define TEXT_SECTION_ASM_OP "\ttext" ! 907: ! 908: /* Output before writable data. */ ! 909: ! 910: #define DATA_SECTION_ASM_OP "\tdata" ! 911: ! 912: /* How to refer to registers in assembler output. ! 913: This sequence is indexed by compiler's hard-register-number (see above). */ ! 914: ! 915: #define REGISTER_NAMES \ ! 916: {"r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7", "r8", "r9", \ ! 917: "r10", "r11", "r12", "r13", "r14", "r15", "r16", "r17", "r18", "r19", \ ! 918: "r20", "r21", "r22", "r23", "r24", "r25", "r26", "r27", "r28", "r29", \ ! 919: "r30", "r31"} ! 920: ! 921: /* How to renumber registers for dbx and gdb. */ ! 922: ! 923: #define DBX_REGISTER_NUMBER(REGNO) (REGNO) ! 924: ! 925: /* This is how to output the definition of a user-level label named NAME, ! 926: such as the label on a static function or variable NAME. */ ! 927: ! 928: #define ASM_OUTPUT_LABEL(FILE,NAME) \ ! 929: do { assemble_name (FILE, NAME); fputs (":\n", FILE); } while (0) ! 930: ! 931: /* This is how to output a command to make the user-level label named NAME ! 932: defined for reference from other files. */ ! 933: ! 934: #define ASM_GLOBALIZE_LABEL(FILE,NAME) \ ! 935: do { fputs ("\tglobal\t", FILE); assemble_name (FILE, NAME); fputs ("\n", FILE);} while (0) ! 936: ! 937: /* This is how to output a reference to a user-level label named NAME. ! 938: `assemble_name' uses this. */ ! 939: ! 940: #define ASM_OUTPUT_LABELREF(FILE,NAME) \ ! 941: fprintf (FILE, "_%s", NAME) ! 942: ! 943: /* This is how to output an internal numbered label where ! 944: PREFIX is the class of label and NUM is the number within the class. */ ! 945: ! 946: #define ASM_OUTPUT_INTERNAL_LABEL(FILE,PREFIX,NUM) \ ! 947: fprintf (FILE, "@%s%d:\n", PREFIX, NUM) ! 948: ! 949: /* This is how to store into the string LABEL ! 950: the symbol_ref name of an internal numbered label where ! 951: PREFIX is the class of label and NUM is the number within the class. ! 952: This is suitable for output with `assemble_name'. */ ! 953: ! 954: #define ASM_GENERATE_INTERNAL_LABEL(LABEL,PREFIX,NUM) \ ! 955: sprintf (LABEL, "*@%s%d", PREFIX, NUM) ! 956: ! 957: /* This is how to output an assembler line defining a `double' constant. */ ! 958: ! 959: #define ASM_OUTPUT_DOUBLE(FILE,VALUE) \ ! 960: fprintf (FILE, "\tdouble %.20e\n", (VALUE)) ! 961: ! 962: /* This is how to output an assembler line defining a `float' constant. */ ! 963: ! 964: #define ASM_OUTPUT_FLOAT(FILE,VALUE) \ ! 965: fprintf (FILE, "\tfloat %.12e\n", (VALUE)) ! 966: ! 967: /* This is how to output an assembler line defining an `int' constant. */ ! 968: ! 969: #define ASM_OUTPUT_INT(FILE,VALUE) \ ! 970: ( fprintf (FILE, "\tword "), \ ! 971: output_addr_const (FILE, (VALUE)), \ ! 972: fprintf (FILE, "\n")) ! 973: ! 974: /* Likewise for `short' and `char' constants. */ ! 975: ! 976: #define ASM_OUTPUT_SHORT(FILE,VALUE) \ ! 977: ( fprintf (FILE, "\thalf "), \ ! 978: output_addr_const (FILE, (VALUE)), \ ! 979: fprintf (FILE, "\n")) ! 980: ! 981: #define ASM_OUTPUT_CHAR(FILE,VALUE) \ ! 982: ( fprintf (FILE, "\tbyte "), \ ! 983: output_addr_const (FILE, (VALUE)), \ ! 984: fprintf (FILE, "\n")) ! 985: ! 986: /* This is how to output an assembler line for a numeric constant byte. */ ! 987: ! 988: #define ASM_OUTPUT_BYTE(FILE,VALUE) \ ! 989: fprintf (FILE, "\tbyte 0x%x\n", (VALUE)) ! 990: ! 991: #define ASM_OUTPUT_ASCII(FILE, P, SIZE) \ ! 992: output_ascii (FILE, P, SIZE) ! 993: ! 994: #define ASM_OUTPUT_ADDR_VEC_PROLOGUE(FILE, MODE, LEN) \ ! 995: fprintf (FILE, "\tjmp r1\n"); ! 996: ! 997: /* This is how to output an element of a case-vector that is absolute. */ ! 998: ! 999: #define ASM_OUTPUT_ADDR_VEC_ELT(FILE, VALUE) \ ! 1000: fprintf (FILE, "\t@L%d\n", VALUE) ! 1001: ! 1002: /* This is how to output an element of a case-vector that is relative. ! 1003: (the m88000 does not use such vectors, ! 1004: but we must define this macro anyway.) */ ! 1005: ! 1006: #define ASM_OUTPUT_ADDR_DIFF_ELT(FILE, VALUE, REL) \ ! 1007: fprintf (FILE, "\tword @L%d-@L%d\n", VALUE, REL) ! 1008: ! 1009: /* This is how to output an assembler line ! 1010: that says to advance the location counter ! 1011: to a multiple of 2**LOG bytes. */ ! 1012: ! 1013: #define ASM_OUTPUT_ALIGN(FILE,LOG) \ ! 1014: if ((LOG) != 0) \ ! 1015: fprintf (FILE, "\talign %d\n", 1<<(LOG)) ! 1016: ! 1017: #define ASM_OUTPUT_SKIP(FILE,SIZE) \ ! 1018: fprintf (FILE, "\tzero %d\n", (SIZE)) ! 1019: ! 1020: /* This says how to output an assembler line ! 1021: to define a global common symbol. */ ! 1022: ! 1023: #define ASM_OUTPUT_COMMON(FILE, NAME, SIZE, ROUNDED) \ ! 1024: ( fputs ("\tcomm ", (FILE)), \ ! 1025: assemble_name ((FILE), (NAME)), \ ! 1026: fprintf ((FILE), ",%d\n", (ROUNDED))) ! 1027: ! 1028: /* This says how to output an assembler line ! 1029: to define a local common symbol. */ ! 1030: ! 1031: #define ASM_OUTPUT_LOCAL(FILE, NAME, SIZE, ROUNDED) \ ! 1032: ( fprintf ((FILE), "\talign %d\n", (SIZE) <= 4 ? 4 : 8), \ ! 1033: assemble_name ((FILE), (NAME)), \ ! 1034: fprintf ((FILE), ":\n\tzero %d\n", (ROUNDED))) ! 1035: ! 1036: /* Store in OUTPUT a string (made with alloca) containing ! 1037: an assembler-name for a local static variable named NAME. ! 1038: LABELNO is an integer which is different for each call. */ ! 1039: ! 1040: #define ASM_FORMAT_PRIVATE_NAME(OUTPUT, NAME, LABELNO) \ ! 1041: ( (OUTPUT) = (char *) alloca (strlen ((NAME)) + 10), \ ! 1042: sprintf ((OUTPUT), "%s.%d", (NAME), (LABELNO))) ! 1043: ! 1044: /* Define the parentheses used to group arithmetic operations ! 1045: in assembler code. */ ! 1046: ! 1047: #define ASM_OPEN_PAREN "(" ! 1048: #define ASM_CLOSE_PAREN ")" ! 1049: ! 1050: /* Define results of standard character escape sequences. */ ! 1051: #define TARGET_BELL 007 ! 1052: #define TARGET_BS 010 ! 1053: #define TARGET_TAB 011 ! 1054: #define TARGET_NEWLINE 012 ! 1055: #define TARGET_VT 013 ! 1056: #define TARGET_FF 014 ! 1057: #define TARGET_CR 015 ! 1058: ! 1059: /* Print operand X (an rtx) in assembler syntax to file FILE. ! 1060: CODE is a letter or dot (`z' in `%z0') or 0 if no letter was specified. ! 1061: For `%' followed by punctuation, CODE is the punctuation and X is null. ! 1062: ! 1063: On the m88000, the CODE can be `r', meaning this is a register-only operand ! 1064: and an immediate zero should be represented as `r0'. */ ! 1065: ! 1066: #define PRINT_OPERAND(FILE, X, CODE) \ ! 1067: { if (GET_CODE (X) == REG) \ ! 1068: fprintf (FILE, "%s", reg_names[REGNO (X)]); \ ! 1069: else if (GET_CODE (X) == MEM) \ ! 1070: output_address (XEXP (X, 0)); \ ! 1071: else if (GET_CODE (X) == CONST_DOUBLE && GET_MODE (X) == SFmode) \ ! 1072: { union { double d; int i[2]; } u; \ ! 1073: union { float f; int i; } u1; \ ! 1074: u.i[0] = CONST_DOUBLE_LOW (X); u.i[1] = CONST_DOUBLE_HIGH (X); \ ! 1075: u1.f = u.d; \ ! 1076: if (CODE == 'f') \ ! 1077: fprintf (FILE, "0r%.9g", u1.f); \ ! 1078: else \ ! 1079: fprintf (FILE, "0x%x", u1.i); } \ ! 1080: else if (GET_CODE (X) == CONST_DOUBLE && GET_MODE (X) != DImode) \ ! 1081: { union { double d; int i[2]; } u; \ ! 1082: u.i[0] = CONST_DOUBLE_LOW (X); u.i[1] = CONST_DOUBLE_HIGH (X); \ ! 1083: fprintf (FILE, "0r%.20g", u.d); } \ ! 1084: else if ((CODE) == 'r' && (X) == const0_rtx) \ ! 1085: fprintf (FILE, "r0"); \ ! 1086: else { output_addr_const (FILE, X); }} ! 1087: ! 1088: /* Print a memory address as an operand to reference that memory location. */ ! 1089: ! 1090: #define PRINT_OPERAND_ADDRESS(FILE, ADDR) \ ! 1091: { register rtx base, index = 0; \ ! 1092: register rtx addr = ADDR; \ ! 1093: register rtx reg0, reg1; \ ! 1094: switch (GET_CODE (addr)) \ ! 1095: { \ ! 1096: case REG: \ ! 1097: fprintf (FILE, "r0,%s", reg_names[REGNO (addr)]); \ ! 1098: break; \ ! 1099: case PLUS: \ ! 1100: reg0 = XEXP (addr, 0); \ ! 1101: reg1 = XEXP (addr, 1); \ ! 1102: if (GET_CODE (reg0) == MULT) \ ! 1103: { rtx tmp = reg0; reg0 = reg1; reg1 = tmp; } \ ! 1104: if (REG_P (reg0)) \ ! 1105: if (REG_P (reg1)) \ ! 1106: fprintf (FILE, "%s,%s", \ ! 1107: reg_names[REGNO (reg0)], \ ! 1108: reg_names[REGNO (reg1)]); \ ! 1109: else if (GET_CODE (reg1) == CONST_INT) \ ! 1110: { \ ! 1111: int offset = INTVAL (reg1); \ ! 1112: fprintf (FILE, "%s,%d", reg_names[REGNO (reg0)], offset); \ ! 1113: } \ ! 1114: else if (GET_CODE (reg1) == MULT) \ ! 1115: fprintf (FILE, "%s[%s]", \ ! 1116: reg_names[REGNO (reg0)], \ ! 1117: reg_names[REGNO (XEXP (reg1, 0))]); \ ! 1118: else fatal ("bad XEXP (1) to PRINT_OPERAND_ADDRESS"); \ ! 1119: else fatal ("unknown PLUS case in PRINT_OPERAND_ADDRESS"); \ ! 1120: break; \ ! 1121: case MULT: \ ! 1122: fprintf (FILE, "r0[%s]", reg_names[REGNO (XEXP (addr, 0))]); \ ! 1123: break; \ ! 1124: default: \ ! 1125: fprintf (FILE, "r0,"); \ ! 1126: output_addr_const (FILE, addr); \ ! 1127: }} ! 1128:
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