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Annotation of gcc/config/pa/pa.h, revision 1.1

1.1     ! root        1: /* Definitions of target machine for GNU compiler, for the HP Spectrum.
        !             2:    Copyright (C) 1992, 1993 Free Software Foundation, Inc.
        !             3:    Contributed by Michael Tiemann ([email protected])
        !             4:    and Tim Moore ([email protected]) of the Center for
        !             5:    Software Science at the University of Utah.
        !             6: 
        !             7: This file is part of GNU CC.
        !             8: 
        !             9: GNU CC is free software; you can redistribute it and/or modify
        !            10: it under the terms of the GNU General Public License as published by
        !            11: the Free Software Foundation; either version 1, or (at your option)
        !            12: any later version.
        !            13: 
        !            14: GNU CC is distributed in the hope that it will be useful,
        !            15: but WITHOUT ANY WARRANTY; without even the implied warranty of
        !            16: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
        !            17: GNU General Public License for more details.
        !            18: 
        !            19: You should have received a copy of the GNU General Public License
        !            20: along with GNU CC; see the file COPYING.  If not, write to
        !            21: the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
        !            22: 
        !            23: enum cmp_type                          /* comparison type */
        !            24: {
        !            25:   CMP_SI,                              /* compare integers */
        !            26:   CMP_SF,                              /* compare single precision floats */
        !            27:   CMP_DF,                              /* compare double precision floats */
        !            28:   CMP_MAX                              /* max comparison type */
        !            29: };
        !            30: 
        !            31: /* Print subsidiary information on the compiler version in use.  */
        !            32: 
        !            33: #define TARGET_VERSION fprintf (stderr, " (hppa)");
        !            34: 
        !            35: /* Run-time compilation parameters selecting different hardware subsets.  */
        !            36: 
        !            37: extern int target_flags;
        !            38: 
        !            39: /* compile code for HP-PA 1.1 ("Snake") */
        !            40: 
        !            41: #define TARGET_SNAKE (target_flags & 1)
        !            42: 
        !            43: /* Disable all FP registers (they all become fixed).  This may be necessary
        !            44:    for compiling kernels which perform lazy context switching of FP regs.
        !            45:    Note if you use this option and try to perform floating point operations 
        !            46:    the compiler will abort!  */
        !            47: 
        !            48: #define TARGET_DISABLE_FPREGS (target_flags & 2)
        !            49: 
        !            50: /* Force gcc to only use instructions which are safe when compiling kernels.
        !            51:    Specifically, avoid using add instructions with dp (r27) as an argument.
        !            52:    Use addil instructions instead.  Doing so avoids a nasty bug in the 
        !            53:    HPUX linker.  When HP fixes their linker take this option out.  */
        !            54: 
        !            55: #define TARGET_KERNEL (target_flags & 4)
        !            56: 
        !            57: /* Generate code that will link against HPUX 8.0 shared libraries.
        !            58:    Older linkers and assemblers might not support this. */
        !            59: 
        !            60: #define TARGET_SHARED_LIBS 1 /* was (target_flags & 8) */
        !            61: 
        !            62: /* Force all function calls to indirect addressing via a register.  This
        !            63:    avoids lossage when the function is very far away from the current PC.
        !            64: 
        !            65:    ??? What about simple jumps, they can suffer from the same problem.  
        !            66:    Would require significant surgery in pa.md.  */
        !            67: 
        !            68: #define TARGET_LONG_CALLS (target_flags & 16)
        !            69: 
        !            70: /* Disable indexed addressing modes.  Necessary under MACH.
        !            71: 
        !            72:    ??? Some problem with a high bit being set in an address having
        !            73:    special meaning to the PA MACH ports.  */
        !            74: 
        !            75: #define TARGET_DISABLE_INDEXING (target_flags & 32)
        !            76: 
        !            77: /* Force a colon to be tacked onto the end of local and global
        !            78:    labels.  An option because the HP assembler croaks on them.   */
        !            79: 
        !            80: #define TARGET_TRAILING_COLON (target_flags & 64)
        !            81: 
        !            82: /* Macro to define tables used to set the flags.
        !            83:    This is a list in braces of pairs in braces,
        !            84:    each pair being { "NAME", VALUE }
        !            85:    where VALUE is the bits to set or minus the bits to clear.
        !            86:    An empty string NAME is used to identify the default VALUE.  */
        !            87: 
        !            88: #define TARGET_SWITCHES \
        !            89:   {{"snake", 1},       \
        !            90:    {"nosnake", -1},    \
        !            91:    {"pa-risc-1-0", -1},        \
        !            92:    {"pa-risc-1-1", 1}, \
        !            93:    {"disable-fpregs", 2},\
        !            94:    {"kernel", 4},      \
        !            95:    {"shared-libs", 8}, \
        !            96:    {"no-shared-libs", -8},\
        !            97:    {"long-calls", 16}, \
        !            98:    {"disable-indexing", 32},\
        !            99:    {"trailing-colon", 64},\
        !           100:    { "", TARGET_DEFAULT}}
        !           101: 
        !           102: #ifndef TARGET_DEFAULT
        !           103: #define TARGET_DEFAULT 0
        !           104: #endif
        !           105: 
        !           106: #define DBX_DEBUGGING_INFO
        !           107: #define DEFAULT_GDB_EXTENSIONS 0
        !           108: 
        !           109: #if (TARGET_DEFAULT & 1) == 0
        !           110: #define CPP_SPEC "%{msnake:-D__hp9000s700 -D_PA_RISC1_1}\
        !           111:  %{mpa-risc-1-1:-D__hp9000s700 -D_PA_RISC1_1}"
        !           112: #else
        !           113: #define CPP_SPEC "%{!mpa-risc-1-0:%{!mnosnake:-D__hp9000s700 -D_PA_RISC1_1}}"
        !           114: #endif
        !           115: 
        !           116: /* Defines for a K&R CC */
        !           117: 
        !           118: #define CC1_SPEC "%{pg:} %{p:}"
        !           119:   
        !           120: #define LINK_SPEC "-u main"
        !           121: 
        !           122: /* Make gcc agree with <machine/ansi.h> */
        !           123: 
        !           124: #define SIZE_TYPE "unsigned int"
        !           125: #define PTRDIFF_TYPE "int"
        !           126: #define WCHAR_TYPE "short unsigned int"
        !           127: #define WCHAR_TYPE_SIZE 16
        !           128: 
        !           129: /* Omit frame pointer at high optimization levels.  */
        !           130:   
        !           131: #define OPTIMIZATION_OPTIONS(OPTIMIZE) \
        !           132: {                                                              \
        !           133:   if (OPTIMIZE >= 2)                                           \
        !           134:     flag_omit_frame_pointer = 1;                               \
        !           135: }
        !           136: 
        !           137: /* Names to predefine in the preprocessor for this target machine.  */
        !           138: 
        !           139: #define CPP_PREDEFINES "-Dhppa -Dhp9000s800 -D__hp9000s800 -Dhp9k8 -Dunix -D_HPUX_SOURCE -Dhp9000 -Dhp800 -Dspectrum -DREVARGV"
        !           140: 
        !           141: /* target machine storage layout */
        !           142: 
        !           143: /* Define this if most significant bit is lowest numbered
        !           144:    in instructions that operate on numbered bit-fields.  */
        !           145: #define BITS_BIG_ENDIAN 1
        !           146: 
        !           147: /* Define this if most significant byte of a word is the lowest numbered.  */
        !           148: /* That is true on the HP-PA.  */
        !           149: #define BYTES_BIG_ENDIAN 1
        !           150: 
        !           151: /* Define this if most significant word of a multiword number is lowest
        !           152:    numbered.  */
        !           153: /* For the HP-PA we can decide arbitrarily
        !           154:    since there are no machine instructions for them.  */
        !           155: #define WORDS_BIG_ENDIAN 1
        !           156: 
        !           157: /* number of bits in an addressable storage unit */
        !           158: #define BITS_PER_UNIT 8
        !           159: 
        !           160: /* Width in bits of a "word", which is the contents of a machine register.
        !           161:    Note that this is not necessarily the width of data type `int';
        !           162:    if using 16-bit ints on a 68000, this would still be 32.
        !           163:    But on a machine with 16-bit registers, this would be 16.  */
        !           164: #define BITS_PER_WORD 32
        !           165: 
        !           166: /* Width of a word, in units (bytes).  */
        !           167: #define UNITS_PER_WORD 4
        !           168: 
        !           169: /* Width in bits of a pointer.
        !           170:    See also the macro `Pmode' defined below.  */
        !           171: #define POINTER_SIZE 32
        !           172: 
        !           173: /* Allocation boundary (in *bits*) for storing arguments in argument list.  */
        !           174: #define PARM_BOUNDARY 32
        !           175: 
        !           176: /* Largest alignment required for any stack parameter, in bits.
        !           177:    Don't define this if it is equal to PARM_BOUNDARY */
        !           178: #define MAX_PARM_BOUNDARY 64
        !           179: 
        !           180: /* Boundary (in *bits*) on which stack pointer should be aligned.  */
        !           181: #define STACK_BOUNDARY (TARGET_SNAKE ? 512 : 64)
        !           182: 
        !           183: /* Allocation boundary (in *bits*) for the code of a function.  */
        !           184: #define FUNCTION_BOUNDARY 32
        !           185: 
        !           186: /* Alignment of field after `int : 0' in a structure.  */
        !           187: #define EMPTY_FIELD_BOUNDARY 32
        !           188: 
        !           189: /* Every structure's size must be a multiple of this.  */
        !           190: #define STRUCTURE_SIZE_BOUNDARY 8
        !           191: 
        !           192: /* A bitfield declared as `int' forces `int' alignment for the struct.  */
        !           193: #define PCC_BITFIELD_TYPE_MATTERS 1
        !           194: 
        !           195: /* No data type wants to be aligned rounder than this.  */
        !           196: #define BIGGEST_ALIGNMENT 64
        !           197: 
        !           198: /* Get around hp-ux assembler bug, and make strcpy of constants fast. */
        !           199: #define CONSTANT_ALIGNMENT(CODE, TYPEALIGN) \
        !           200:   ((TYPEALIGN) < 32 ? 32 : (TYPEALIGN))
        !           201: 
        !           202: /* Make arrays of chars word-aligned for the same reasons.  */
        !           203: #define DATA_ALIGNMENT(TYPE, ALIGN)            \
        !           204:   (TREE_CODE (TYPE) == ARRAY_TYPE              \
        !           205:    && TYPE_MODE (TREE_TYPE (TYPE)) == QImode   \
        !           206:    && (ALIGN) < BITS_PER_WORD ? BITS_PER_WORD : (ALIGN))
        !           207: 
        !           208: 
        !           209: /* Set this nonzero if move instructions will actually fail to work
        !           210:    when given unaligned data.  */
        !           211: #define STRICT_ALIGNMENT 1
        !           212: 
        !           213: /* Generate calls to memcpy, memcmp and memset.  */
        !           214: #define TARGET_MEM_FUNCTIONS
        !           215: 
        !           216: /* Standard register usage.  */
        !           217: 
        !           218: /* Number of actual hardware registers.
        !           219:    The hardware registers are assigned numbers for the compiler
        !           220:    from 0 to just below FIRST_PSEUDO_REGISTER.
        !           221:    All registers that the compiler knows about must be given numbers,
        !           222:    even those that are not normally considered general registers.
        !           223: 
        !           224:    HP-PA 1.0 has 32 fullword registers and 16 floating point
        !           225:    registers. The floating point registers hold either word or double
        !           226:    word values.
        !           227:    
        !           228:    16 additional registers are reserved.
        !           229:    
        !           230:    HP-PA 1.1 has 32 fullword registers and 32 floating point
        !           231:    registers. However, the floating point registers behave
        !           232:    differently: the left and right halves of registers are addressable
        !           233:    as 32 bit registers. So, we will set things up like the 68k which
        !           234:    has different fp units: define separate register sets for the 1.0
        !           235:    and 1.1 fp units. */
        !           236: 
        !           237: #define FIRST_PSEUDO_REGISTER 101  /* 32 + 12 1.0 regs + 56 1.1 regs + */
        !           238:                                   /* 1 shift reg */
        !           239: 
        !           240: /* 1 for registers that have pervasive standard uses
        !           241:    and are not available for the register allocator.
        !           242: 
        !           243:    On the HP-PA, these are:
        !           244:    Reg 0       = 0 (hardware). However, 0 is used for condition code,
        !           245:                   so is not fixed.
        !           246:    Reg 1       = ADDIL target/Temporary (hardware).
        !           247:    Reg 2       = Return Pointer
        !           248:    Reg 3       = Preserved Register (Gnu).  Frame Pointer (> 8k frames HP.)
        !           249:    Reg 4       = Frame Pointer (Gnu)
        !           250:    Reg 5-18    = Preserved Registers
        !           251:    Reg 19      = Linkage Table Register in HPUX 8.0 shared library scheme.
        !           252:    Reg 20-22   = Temporary Registers
        !           253:    Reg 23-26   = Temporary/Parameter Registers
        !           254:    Reg 27      = Global Data Pointer (hp)
        !           255:    Reg 28      = Temporary/???/Return Value register
        !           256:    Reg 29      = Temporary/Static Chain/Return Value register
        !           257:    Reg 30      = stack pointer
        !           258:    Reg 31      = Temporary/Millicode Return Pointer (hp)
        !           259: 
        !           260:    Freg 0-3    = Status Registers       -- Not known to the compiler.
        !           261:    Freg 4-7    = Arguments/Return Value
        !           262:    Freg 8-11   = Temporary Registers
        !           263:    Freg 12-15  = Preserved Registers
        !           264: 
        !           265:    Freg 16-31  = Reserved
        !           266: 
        !           267:    On the Snake, fp regs are
        !           268: 
        !           269:    Freg 0-3    = Status Registers      -- Not known to the compiler.
        !           270:    Freg 4L-7R  = Arguments/Return Value
        !           271:    Freg 8L-11R = Temporary Registers
        !           272:    Freg 12L-21R        = Preserved Registers
        !           273:    Freg 22L-31R = Temporary Registers
        !           274:    
        !           275: 
        !           276: */
        !           277: 
        !           278: #define FIXED_REGISTERS  \
        !           279:  {0, 0, 0, 0, 0, 0, 0, 0, \
        !           280:   0, 0, 0, 0, 0, 0, 0, 0, \
        !           281:   0, 0, 0, 0, 0, 0, 0, 0, \
        !           282:   0, 0, 0, 1, 0, 0, 1, 0, \
        !           283:   /* 1.0 fp registers */ \
        !           284:   0, 0, 0, 0, \
        !           285:   0, 0, 0, 0, 0, 0, 0, 0, \
        !           286:   /* 1.1 fp registers */ \
        !           287:   0, 0, 0, 0, 0, 0, 0, 0, \
        !           288:   0, 0, 0, 0, 0, 0, 0, 0, \
        !           289:   0, 0, 0, 0, 0, 0, 0, 0, \
        !           290:   0, 0, 0, 0, 0, 0, 0, 0, \
        !           291:   0, 0, 0, 0, 0, 0, 0, 0, \
        !           292:   0, 0, 0, 0, 0, 0, 0, 0, \
        !           293:   0, 0, 0, 0, 0, 0, 0, 0, \
        !           294:   0}
        !           295: 
        !           296: /* 1 for registers not available across function calls.
        !           297:    These must include the FIXED_REGISTERS and also any
        !           298:    registers that can be used without being saved.
        !           299:    The latter must include the registers where values are returned
        !           300:    and the register where structure-value addresses are passed.
        !           301:    Aside from that, you can include as many other registers as you like.  */
        !           302: #define CALL_USED_REGISTERS  \
        !           303:  {1, 1, 1, 0, 0, 0, 0, 0, \
        !           304:   0, 0, 0, 0, 0, 0, 0, 0, \
        !           305:   0, 0, 0, 1, 1, 1, 1, 1, \
        !           306:   1, 1, 1, 1, 1, 1, 1, 1, \
        !           307:   /* 1.0 fp registers */ \
        !           308:   1, 1, 1, 1, \
        !           309:   1, 1, 1, 1, 0, 0, 0, 0, \
        !           310:   /* 1.1 fp registers */ \
        !           311:   1, 1, 1, 1, 1, 1, 1, 1, \
        !           312:   1, 1, 1, 1, 1, 1, 1, 1, \
        !           313:   0, 0, 0, 0, 0, 0, 0, 0, \
        !           314:   0, 0, 0, 0, 0, 0, 0, 0, \
        !           315:   0, 0, 0, 0, 1, 1, 1, 1, \
        !           316:   1, 1, 1, 1, 1, 1, 1, 1, \
        !           317:   1, 1, 1, 1, 1, 1, 1, 1, \
        !           318:   1}    
        !           319: 
        !           320: /* Make sure everything's fine if we *don't* have a given processor.
        !           321:    This assumes that putting a register in fixed_regs will keep the
        !           322:    compiler's mitts completely off it.  We don't bother to zero it out
        !           323:    of register classes.   */
        !           324: 
        !           325: #define CONDITIONAL_REGISTER_USAGE \
        !           326: {                                              \
        !           327:   int i;                                       \
        !           328:   HARD_REG_SET x;                              \
        !           329:   if (!TARGET_SNAKE)                           \
        !           330:     {                                          \
        !           331:       COPY_HARD_REG_SET (x, reg_class_contents[(int)SNAKE_FP_REGS]);\
        !           332:       for (i = 0; i < FIRST_PSEUDO_REGISTER; i++ ) \
        !           333:        if (TEST_HARD_REG_BIT (x, i))           \
        !           334:        fixed_regs[i] = call_used_regs[i] = 1;  \
        !           335:     }                                          \
        !           336:   else if (TARGET_DISABLE_FPREGS)              \
        !           337:     {                                          \
        !           338:       COPY_HARD_REG_SET (x, reg_class_contents[(int)FP_REGS]);\
        !           339:       for (i = 0; i < FIRST_PSEUDO_REGISTER; i++ ) \
        !           340:        if (TEST_HARD_REG_BIT (x, i))           \
        !           341:        fixed_regs[i] = call_used_regs[i] = 1;  \
        !           342:       COPY_HARD_REG_SET (x, reg_class_contents[(int)SNAKE_FP_REGS]);\
        !           343:       for (i = 0; i < FIRST_PSEUDO_REGISTER; i++ ) \
        !           344:        if (TEST_HARD_REG_BIT (x, i))           \
        !           345:        fixed_regs[i] = call_used_regs[i] = 1;  \
        !           346:     }                                          \
        !           347:   else                                         \
        !           348:     {                                          \
        !           349:       COPY_HARD_REG_SET (x, reg_class_contents[(int)FP_REGS]); \
        !           350:       for (i = 0; i < FIRST_PSEUDO_REGISTER; i++ ) \
        !           351:        if (TEST_HARD_REG_BIT (x, i))           \
        !           352:        fixed_regs[i] = call_used_regs[i] = 1;  \
        !           353:     }                                          \
        !           354:   if (flag_pic)                                        \
        !           355:     fixed_regs[PIC_OFFSET_TABLE_REGNUM] = 1;   \
        !           356: }
        !           357: 
        !           358: /* Allocated the call used registers first.  This should minimize
        !           359:    the number of registers that need to be saved (as call used
        !           360:    registers will generally not be allocated across a call).
        !           361: 
        !           362:    Experimentation has shown slightly better results by allocating
        !           363:    FP registers first.  */
        !           364: 
        !           365: #define REG_ALLOC_ORDER \
        !           366:   /* 1.0 caller-saved fp regs.  */     \
        !           367:  {36, 37, 38, 39, 32, 33, 34, 35,      \
        !           368:   /* 1.1 caller-saved fp regs.  */     \
        !           369:   52, 53, 54, 55, 56, 57, 58, 59,      \
        !           370:   80, 81, 82, 83, 84, 85, 86, 87,      \
        !           371:   88, 89, 90, 91, 92, 93, 94, 95,      \
        !           372:   96, 97, 98, 99,                      \
        !           373:   44, 45, 46, 47, 48, 49, 50, 51,      \
        !           374:   /* caller-saved general regs.  */    \
        !           375:   19, 20, 21, 22, 23, 24, 25, 26,      \
        !           376:   27, 28, 29, 31,  2,                  \
        !           377:   /* 1.0 callee-saved fp regs.  */     \
        !           378:   40, 41, 42, 43,                      \
        !           379:   /* 1.1 callee-saved fp regs.  */     \
        !           380:   60, 61, 62, 63, 64, 65, 66, 67,      \
        !           381:   68, 69, 70, 71, 72, 73, 74, 75,      \
        !           382:   76, 77, 78, 79,                      \
        !           383:   /* callee-saved general regs.  */    \
        !           384:    3,  4,  5,  6,  7,  8,  9, 10,      \
        !           385:   11, 12, 13, 14, 15, 16, 17, 18,      \
        !           386:   /* special registers.  */            \
        !           387:    1, 30,  0, 100}
        !           388: 
        !           389: 
        !           390: /* Return number of consecutive hard regs needed starting at reg REGNO
        !           391:    to hold something of mode MODE.
        !           392:    This is ordinarily the length in words of a value of mode MODE
        !           393:    but can be less for certain modes in special long registers.
        !           394: 
        !           395:    On the HP-PA, ordinary registers hold 32 bits worth;
        !           396:    The floating point registers are 64 bits wide. Snake fp regs are 32
        !           397:    bits wide */
        !           398: #define HARD_REGNO_NREGS(REGNO, MODE)   \
        !           399:   (((REGNO) < 32 || (REGNO) >= 44)     \
        !           400:    ? ((GET_MODE_SIZE (MODE) + UNITS_PER_WORD - 1) / UNITS_PER_WORD) : 1)
        !           401: 
        !           402: /* Value is 1 if hard register REGNO can hold a value of machine-mode MODE.
        !           403:    On the HP-PA, the cpu registers can hold any mode.  We
        !           404:    force this to be an even register is it cannot hold the full mode.  */
        !           405: #define HARD_REGNO_MODE_OK(REGNO, MODE) \
        !           406:   ((REGNO) == 0 ? (MODE) == CCmode || (MODE) == CCFPmode               \
        !           407:    : (REGNO) < 32 ? ((GET_MODE_SIZE (MODE) <= 4) ? 1 : ((REGNO) & 1) == 0)\
        !           408:    : (REGNO) < 44 ? (GET_MODE_SIZE (MODE) <= 4                         \
        !           409:                     || (GET_MODE_SIZE (MODE) > 4                       \
        !           410:                         && GET_MODE_CLASS (MODE) == MODE_FLOAT))       \
        !           411:    : (GET_MODE_SIZE (MODE) > 4 ? ((REGNO) & 1) == 0                    \
        !           412:       : 1))
        !           413: 
        !           414: /* Value is 1 if it is a good idea to tie two pseudo registers
        !           415:    when one has mode MODE1 and one has mode MODE2.
        !           416:    If HARD_REGNO_MODE_OK could produce different values for MODE1 and MODE2,
        !           417:    for any hard reg, then this must be 0 for correct output.  */
        !           418: #define MODES_TIEABLE_P(MODE1, MODE2) \
        !           419:   (GET_MODE_CLASS (MODE1) == GET_MODE_CLASS (MODE2))
        !           420: 
        !           421: /* Specify the registers used for certain standard purposes.
        !           422:    The values of these macros are register numbers.  */
        !           423: 
        !           424: /* The HP-PA pc isn't overloaded on a register that the compiler knows about.  */
        !           425: /* #define PC_REGNUM  */
        !           426: 
        !           427: /* Register to use for pushing function arguments.  */
        !           428: #define STACK_POINTER_REGNUM 30
        !           429: 
        !           430: /* Base register for access to local variables of the function.  */
        !           431: #define FRAME_POINTER_REGNUM 4
        !           432: 
        !           433: /* Value should be nonzero if functions must have frame pointers. */
        !           434: #define FRAME_POINTER_REQUIRED (current_function_calls_alloca)
        !           435:   
        !           436: 
        !           437: /* C statement to store the difference between the frame pointer
        !           438:    and the stack pointer values immediately after the function prologue.
        !           439: 
        !           440:    Note, we always pretend that this is a leaf function because if
        !           441:    it's not, there's no point in trying to eliminate the
        !           442:    frame pointer.  If it is a leaf function, we guessed right!  */
        !           443: #define INITIAL_FRAME_POINTER_OFFSET(VAR) \
        !           444:   do {(VAR) = - compute_frame_size (get_frame_size (), 0);} while (0)
        !           445: 
        !           446: /* Base register for access to arguments of the function.  */
        !           447: #define ARG_POINTER_REGNUM 4
        !           448: 
        !           449: /* Register in which static-chain is passed to a function.  */
        !           450: /* ??? */
        !           451: #define STATIC_CHAIN_REGNUM 29
        !           452: 
        !           453: /* Register which holds offset table for position-independent
        !           454:    data references.  */
        !           455: 
        !           456: #define PIC_OFFSET_TABLE_REGNUM 19
        !           457: 
        !           458: #define INITIALIZE_PIC initialize_pic ()
        !           459: #define FINALIZE_PIC finalize_pic ()
        !           460: 
        !           461: /* Register in which address to store a structure value
        !           462:    is passed to a function.  */
        !           463: #define STRUCT_VALUE_REGNUM 28
        !           464: 
        !           465: /* Define the classes of registers for register constraints in the
        !           466:    machine description.  Also define ranges of constants.
        !           467: 
        !           468:    One of the classes must always be named ALL_REGS and include all hard regs.
        !           469:    If there is more than one class, another class must be named NO_REGS
        !           470:    and contain no registers.
        !           471: 
        !           472:    The name GENERAL_REGS must be the name of a class (or an alias for
        !           473:    another name such as ALL_REGS).  This is the class of registers
        !           474:    that is allowed by "g" or "r" in a register constraint.
        !           475:    Also, registers outside this class are allocated only when
        !           476:    instructions express preferences for them.
        !           477: 
        !           478:    The classes must be numbered in nondecreasing order; that is,
        !           479:    a larger-numbered class must never be contained completely
        !           480:    in a smaller-numbered class.
        !           481: 
        !           482:    For any two classes, it is very desirable that there be another
        !           483:    class that represents their union.  */
        !           484: 
        !           485:   /* The HP-PA has four kinds of registers: general regs, 1.0 fp regs,
        !           486:      1.1 fp regs, and the high 1.1 fp regs, to which the operands of
        !           487:      fmpyadd and fmpysub are restricted.
        !           488: 
        !           489:      FP_OR_SNAKE_FP_REGS is for reload_{in,out}di only and isn't used
        !           490:      anywhere else.  */
        !           491: 
        !           492: enum reg_class { NO_REGS, R1_REGS, GENERAL_REGS, FP_REGS, GENERAL_OR_FP_REGS,
        !           493:   HI_SNAKE_FP_REGS, SNAKE_FP_REGS, GENERAL_OR_SNAKE_FP_REGS,
        !           494:   FP_OR_SNAKE_FP_REGS, NON_SHIFT_REGS, SHIFT_REGS, ALL_REGS, LIM_REG_CLASSES}; 
        !           495: 
        !           496: #define N_REG_CLASSES (int) LIM_REG_CLASSES
        !           497: 
        !           498: /* Give names of register classes as strings for dump file.   */
        !           499: 
        !           500: #define REG_CLASS_NAMES \
        !           501:   { "NO_REGS", "R1_REGS", "GENERAL_REGS", "FP_REGS", "GENERAL_OR_FP_REGS",\
        !           502:     "HI_SNAKE_FP_REGS", "SNAKE_FP_REGS", "GENERAL_OR_SNAKE_FP_REGS",\
        !           503:     "FP_OR_SNAKE_FP_REGS", "NON_SHIFT_REGS", "SHIFT_REGS", "ALL_REGS"}
        !           504: 
        !           505: /* Define which registers fit in which classes.
        !           506:    This is an initializer for a vector of HARD_REG_SET
        !           507:    of length N_REG_CLASSES. Register 0, the "condition code" register,
        !           508:    is in no class. */
        !           509: 
        !           510: #define REG_CLASS_CONTENTS     \
        !           511: { {0, 0, 0, 0},                        /* NO_REGS */           \
        !           512:   {0x2, 0, 0, 0},              /* R1_REGS */           \
        !           513:   {-2, 0, 0, 0},               /* GENERAL_REGS */      \
        !           514:   {0, 0xfff, 0, 0},            /* FP_REGS */           \
        !           515:   {-2, 0xfff, 0, 0},           /* GENERAL_OR_FP_REGS */\
        !           516:   {0, 0, 0xfffffff0, 0xf},     /* HI_SNAKE_FP_REGS */  \
        !           517:   {0, 0xfffff000, ~0, 0xf},    /* SNAKE_FP_REGS */     \
        !           518:   {-2, 0xfffff000, ~0, 0xf},   /* GENERAL_OR_SNAKE_FP_REGS */\
        !           519:   {0, ~0, ~0, 0xf},            /* FP_OR_SNAKE_FP_REGS */\
        !           520:   {-2, ~0, ~0, ~0x10},         /* NON_SHIFT_REGS */    \
        !           521:   {0, 0, 0, 0x10},             /* SHIFT_REGS */        \
        !           522:   {-2, ~0, ~0, 0x1f}}          /* ALL_REGS */
        !           523: 
        !           524: /* The same information, inverted:
        !           525:    Return the class number of the smallest class containing
        !           526:    reg number REGNO.  This could be a conditional expression
        !           527:    or could index an array.  */
        !           528: 
        !           529: #define REGNO_REG_CLASS(REGNO)         \
        !           530:   ((REGNO) == 0 ? NO_REGS              \
        !           531:    : (REGNO) == 1 ? R1_REGS            \
        !           532:    : (REGNO) < 32 ? GENERAL_REGS       \
        !           533:    : (REGNO) < 44 ? FP_REGS            \
        !           534:    : (REGNO) < 68 ? SNAKE_FP_REGS      \
        !           535:    : (REGNO) < 100 ? HI_SNAKE_FP_REGS  \
        !           536:    : SHIFT_REGS)
        !           537: 
        !           538: /* The class value for index registers, and the one for base regs.  */
        !           539: #define INDEX_REG_CLASS GENERAL_REGS
        !           540: #define BASE_REG_CLASS GENERAL_REGS
        !           541: 
        !           542: #define FP_REG_CLASS_P(CLASS) \
        !           543:   (CLASS == FP_REGS || CLASS == SNAKE_FP_REGS || CLASS == HI_SNAKE_FP_REGS)
        !           544: 
        !           545: /* Get reg_class from a letter such as appears in the machine description.
        !           546:    Note 'Z' is not the same as 'r' since SHIFT_REGS is not part of 
        !           547:    GENERAL_REGS.  */
        !           548: 
        !           549: #define REG_CLASS_FROM_LETTER(C) \
        !           550:   ((C) == 'f' ? (!TARGET_SNAKE ? FP_REGS : NO_REGS) :          \
        !           551:    ((C) == 'x' ? (TARGET_SNAKE ? SNAKE_FP_REGS : NO_REGS) :    \
        !           552:     ((C) == 'y' ? (TARGET_SNAKE ? HI_SNAKE_FP_REGS : NO_REGS) :        \
        !           553:      ((C) == 'q' ? SHIFT_REGS :                                        \
        !           554:       ((C) == 'a' ? R1_REGS :                                  \
        !           555:        ((C) == 'z' ? FP_OR_SNAKE_FP_REGS :                     \
        !           556:         ((C) == 'Z' ? ALL_REGS : NO_REGS)))))))
        !           557: 
        !           558: /* The letters I, J, K, L and M in a register constraint string
        !           559:    can be used to stand for particular ranges of immediate operands.
        !           560:    This macro defines what the ranges are.
        !           561:    C is the letter, and VALUE is a constant value.
        !           562:    Return 1 if VALUE is in the range specified by C.
        !           563: 
        !           564:    `I' is used for the 11 bit constants.
        !           565:    `J' is used for the 14 bit constants.
        !           566:    `K' is used for values that can be moved with a zdepi insn.
        !           567:    `L' is used for the 5 bit constants.
        !           568:    `M' is used for 0.
        !           569:    `N' is used for values with the least significant 11 bits equal to zero.
        !           570:    `O' is used for numbers n such that n+1 is a power of 2.
        !           571:    */
        !           572: 
        !           573: #define CONST_OK_FOR_LETTER_P(VALUE, C)  \
        !           574:   ((C) == 'I' ? VAL_11_BITS_P (VALUE)                          \
        !           575:    : (C) == 'J' ? VAL_14_BITS_P (VALUE)                                \
        !           576:    : (C) == 'K' ? zdepi_cint_p (VALUE)                         \
        !           577:    : (C) == 'L' ? VAL_5_BITS_P (VALUE)                         \
        !           578:    : (C) == 'M' ? (VALUE) == 0                                 \
        !           579:    : (C) == 'N' ? ((VALUE) & 0x7ff) == 0                       \
        !           580:    : (C) == 'O' ? (((VALUE) & ((VALUE) + 1)) == 0)             \
        !           581:    : (C) == 'P' ? and_mask_p (VALUE)                           \
        !           582:    : 0)
        !           583: 
        !           584: /* Similar, but for floating or large integer constants, and defining letters
        !           585:    G and H.   Here VALUE is the CONST_DOUBLE rtx itself.
        !           586: 
        !           587:    For PA, `G' is the floating-point constant zero.  `H' is undefined.  */
        !           588: 
        !           589: #define CONST_DOUBLE_OK_FOR_LETTER_P(VALUE, C)                         \
        !           590:   ((C) == 'G' ? (GET_MODE_CLASS (GET_MODE (VALUE)) == MODE_FLOAT       \
        !           591:                 && (VALUE) == CONST0_RTX (GET_MODE (VALUE)))           \
        !           592:    : 0)
        !           593: 
        !           594: /* Given an rtx X being reloaded into a reg required to be
        !           595:    in class CLASS, return the class of reg to actually use.
        !           596:    In general this is just CLASS; but on some machines
        !           597:    in some cases it is preferable to use a more restrictive class.  */
        !           598: #define PREFERRED_RELOAD_CLASS(X,CLASS) (CLASS)
        !           599: 
        !           600: /* Return the register class of a scratch register needed to copy IN into
        !           601:    or out of a register in CLASS in MODE.  If it can be done directly,
        !           602:    NO_REGS is returned.  */
        !           603: 
        !           604: #define SECONDARY_RELOAD_CLASS(CLASS,MODE,IN) \
        !           605:   secondary_reload_class (CLASS, MODE, IN)
        !           606: 
        !           607: /* On the PA it is not possible to directly move data between 
        !           608:    GENERAL_REGS and FP_REGS.  */
        !           609: #define SECONDARY_MEMORY_NEEDED(CLASS1, CLASS2, MODE)  \
        !           610:   ((FP_REG_CLASS_P (CLASS1) && ! FP_REG_CLASS_P (CLASS2))      \
        !           611:    || (! FP_REG_CLASS_P (CLASS1) && FP_REG_CLASS_P (CLASS2)))
        !           612: 
        !           613: /* Return the stack location to use for secondary memory needed reloads.  */
        !           614: #define SECONDARY_MEMORY_NEEDED_RTX(MODE) \
        !           615:   gen_rtx (MEM, MODE, gen_rtx (PLUS, Pmode, stack_pointer_rtx, GEN_INT (-16)))
        !           616: 
        !           617: /* Return the maximum number of consecutive registers
        !           618:    needed to represent mode MODE in a register of class CLASS.  */
        !           619: #define CLASS_MAX_NREGS(CLASS, MODE)   \
        !           620:   ((CLASS) == FP_REGS ? 1 : ((GET_MODE_SIZE (MODE) + UNITS_PER_WORD - 1) / UNITS_PER_WORD))
        !           621: 
        !           622: /* Stack layout; function entry, exit and calling.  */
        !           623: 
        !           624: /* Define this if pushing a word on the stack
        !           625:    makes the stack pointer a smaller address.  */
        !           626: /* #define STACK_GROWS_DOWNWARD */
        !           627: 
        !           628: /* Believe it or not.  */
        !           629: #define ARGS_GROW_DOWNWARD
        !           630: 
        !           631: /* Define this if the nominal address of the stack frame
        !           632:    is at the high-address end of the local variables;
        !           633:    that is, each additional local variable allocated
        !           634:    goes at a more negative offset in the frame.  */
        !           635: /* #define FRAME_GROWS_DOWNWARD */
        !           636: 
        !           637: /* Offset within stack frame to start allocating local variables at.
        !           638:    If FRAME_GROWS_DOWNWARD, this is the offset to the END of the
        !           639:    first local allocated.  Otherwise, it is the offset to the BEGINNING
        !           640:    of the first local allocated.  */
        !           641: #define STARTING_FRAME_OFFSET 8
        !           642: 
        !           643: /* If we generate an insn to push BYTES bytes,
        !           644:    this says how many the stack pointer really advances by.
        !           645:    On the HP-PA, don't define this because there are no push insns.  */
        !           646: /*  #define PUSH_ROUNDING(BYTES) */
        !           647: 
        !           648: /* Offset of first parameter from the argument pointer register value.
        !           649:    This value will be negated because the arguments grow down.
        !           650:    Also note that on STACK_GROWS_UPWARD machines (such as this one)
        !           651:    this is the distance from the frame pointer to the end of the first
        !           652:    argument, not it's beginning.  To get the real offset of the first
        !           653:    argument, the size of the argument must be added.
        !           654: 
        !           655:    ??? Have to check on this.*/
        !           656: 
        !           657: #define FIRST_PARM_OFFSET(FNDECL) -32 
        !           658: 
        !           659: /* Absolute value of offset from top-of-stack address to location to store the
        !           660:    function parameter if it can't go in a register.
        !           661:    Addresses for following parameters are computed relative to this one.  */
        !           662: #define FIRST_PARM_CALLER_OFFSET(FNDECL) -32 
        !           663: 
        !           664: 
        !           665: /* When a parameter is passed in a register, stack space is still
        !           666:    allocated for it.  */
        !           667: #define REG_PARM_STACK_SPACE(DECL) 16
        !           668: 
        !           669: /* Define this if the above stack space is to be considered part of the
        !           670:    space allocated by the caller.  */
        !           671: #define OUTGOING_REG_PARM_STACK_SPACE
        !           672: 
        !           673: /* Keep the stack pointer constant throughout the function.
        !           674:    This is both an optimization and a necessity: longjmp
        !           675:    doesn't behave itself when the stack pointer moves within
        !           676:    the function!  */
        !           677: #define ACCUMULATE_OUTGOING_ARGS
        !           678:   
        !           679: /* The weird HPPA calling conventions require a minimum of 48 bytes on 
        !           680:    the stack: 16 bytes for register saves, and 32 bytes for magic.
        !           681:    This is the difference between the logical top of stack and the
        !           682:    actual sp. */ 
        !           683: #define STACK_POINTER_OFFSET -32
        !           684: 
        !           685: #define STACK_DYNAMIC_OFFSET(FNDECL)   \
        !           686:   ((STACK_POINTER_OFFSET) - current_function_outgoing_args_size)
        !           687: 
        !           688: /* Value is 1 if returning from a function call automatically
        !           689:    pops the arguments described by the number-of-args field in the call.
        !           690:    FUNTYPE is the data type of the function (as a tree),
        !           691:    or for a library call it is an identifier node for the subroutine name.  */
        !           692: 
        !           693: #define RETURN_POPS_ARGS(FUNTYPE,SIZE) 0
        !           694: 
        !           695: /* Define how to find the value returned by a function.
        !           696:    VALTYPE is the data type of the value (as a tree).
        !           697:    If the precise function being called is known, FUNC is its FUNCTION_DECL;
        !           698:    otherwise, FUNC is 0.  */
        !           699: 
        !           700: /* On the HP-PA the value is found in register(s) 28(-29), unless
        !           701:    the mode is SF or DF. Then the value is returned in fr4 (32, ) */
        !           702: 
        !           703: 
        !           704: #define FUNCTION_VALUE(VALTYPE, FUNC)  \
        !           705:   gen_rtx (REG, TYPE_MODE (VALTYPE), ((TYPE_MODE (VALTYPE) == SFmode ||\
        !           706:                                       TYPE_MODE (VALTYPE) == DFmode) ? \
        !           707:                                      (TARGET_SNAKE ? 44 : 32) : 28))
        !           708: 
        !           709: /* Define how to find the value returned by a library function
        !           710:    assuming the value has mode MODE.  */
        !           711: 
        !           712: #define LIBCALL_VALUE(MODE) \
        !           713:   gen_rtx (REG, MODE, (MODE == SFmode || MODE == DFmode ?\
        !           714:                       (TARGET_SNAKE ? 44 : 32) : 28))
        !           715: 
        !           716: /* 1 if N is a possible register number for a function value
        !           717:    as seen by the caller.  */
        !           718: 
        !           719: #define FUNCTION_VALUE_REGNO_P(N) ((N) == 28 || (N) == (TARGET_SNAKE ? 44 : 32))
        !           720: 
        !           721: /* 1 if N is a possible register number for function argument passing.  */
        !           722: 
        !           723: #define FUNCTION_ARG_REGNO_P(N)                                \
        !           724:   (((N) >= 23 && (N) <= 26)                            \
        !           725:    || ((N) >= 32 && (N) <= 35 && ! TARGET_SNAKE)       \
        !           726:    || ((N) >= 44 && (N) <= 51 && TARGET_SNAKE))
        !           727: 
        !           728: /* Define a data type for recording info about an argument list
        !           729:    during the scan of that argument list.  This data type should
        !           730:    hold all necessary information about the function itself
        !           731:    and about the args processed so far, enough to enable macros
        !           732:    such as FUNCTION_ARG to determine where the next arg should go.
        !           733: 
        !           734:    On the HP-PA, this is a single integer, which is a number of words
        !           735:    of arguments scanned so far (including the invisible argument,
        !           736:    if any, which holds the structure-value-address).
        !           737:    Thus 4 or more means all following args should go on the stack.  */
        !           738: 
        !           739: #define CUMULATIVE_ARGS int
        !           740: 
        !           741: /* Initialize a variable CUM of type CUMULATIVE_ARGS
        !           742:    for a call to a function whose data type is FNTYPE.
        !           743:    For a library call, FNTYPE is 0.
        !           744: */
        !           745: 
        !           746: #define INIT_CUMULATIVE_ARGS(CUM,FNTYPE,LIBNAME) ((CUM) = 0)
        !           747: 
        !           748: /* Figure out the size in words of the function argument. */
        !           749: 
        !           750: #define FUNCTION_ARG_SIZE(MODE, TYPE)  \
        !           751:   ((((MODE) != BLKmode ? GET_MODE_SIZE (MODE) : int_size_in_bytes (TYPE))+3)/4)
        !           752: 
        !           753: /* Update the data in CUM to advance over an argument
        !           754:    of mode MODE and data type TYPE.
        !           755:    (TYPE is null for libcalls where that information may not be available.)  */
        !           756: 
        !           757: #define FUNCTION_ARG_ADVANCE(CUM, MODE, TYPE, NAMED)                   \
        !           758:     (((((CUM) & 01) && (TYPE) != 0 && FUNCTION_ARG_SIZE(MODE, TYPE) > 1)\
        !           759:       && (CUM)++), (CUM) += FUNCTION_ARG_SIZE(MODE, TYPE))
        !           760: 
        !           761: /* Determine where to put an argument to a function.
        !           762:    Value is zero to push the argument on the stack,
        !           763:    or a hard register in which to store the argument.
        !           764: 
        !           765:    MODE is the argument's machine mode.
        !           766:    TYPE is the data type of the argument (as a tree).
        !           767:     This is null for libcalls where that information may
        !           768:     not be available.
        !           769:    CUM is a variable of type CUMULATIVE_ARGS which gives info about
        !           770:     the preceding args and about the function being called.
        !           771:    NAMED is nonzero if this argument is a named parameter
        !           772:     (otherwise it is an extra parameter matching an ellipsis).  */
        !           773: 
        !           774: /* On the HP-PA the first four words of args are normally in registers
        !           775:    and the rest are pushed.  But any arg that won't entirely fit in regs
        !           776:    is pushed.
        !           777: 
        !           778:    Arguments passed in registers are either 1 or 2 words long.
        !           779: 
        !           780:    The caller must make a distinction between calls to explicitly named
        !           781:    functions and calls through pointers to functions -- the conventions
        !           782:    are different!  Calls through pointers to functions only use general
        !           783:    registers for the first four argument words.  */
        !           784: 
        !           785: #define FUNCTION_ARG_PADDING(MODE, TYPE) function_arg_padding ((MODE), (TYPE))
        !           786: 
        !           787: #define FUNCTION_ARG(CUM, MODE, TYPE, NAMED)                           \
        !           788:   (4 >= ((CUM) + FUNCTION_ARG_SIZE ((MODE), (TYPE)))                   \
        !           789:    ? gen_rtx (REG, (MODE),                                             \
        !           790:              (FUNCTION_ARG_SIZE ((MODE), (TYPE)) > 1                   \
        !           791:               ? ((! (TARGET_SHARED_LIBS && current_call_is_indirect)   \
        !           792:                   && (MODE) == DFmode)                                 \
        !           793:                  ? ((CUM) ? (TARGET_SNAKE ? 50 : 35)                   \
        !           794:                     : (TARGET_SNAKE ? 46 : 33))                        \
        !           795:                  : ((CUM) ? 23 : 25))                                  \
        !           796:               : ((! (TARGET_SHARED_LIBS && current_call_is_indirect)   \
        !           797:                   && (MODE) == SFmode)                                 \
        !           798:                  ? (TARGET_SNAKE ? 44 + 2 * (CUM) : 32  + (CUM))       \
        !           799:                  : (27 - (CUM) - FUNCTION_ARG_SIZE ((MODE), (TYPE))))))\
        !           800:    : 0)
        !           801: 
        !           802: /* Define where a function finds its arguments.
        !           803:    This would be different from FUNCTION_ARG if we had register windows.  */
        !           804: 
        !           805: #define FUNCTION_INCOMING_ARG(CUM, MODE, TYPE, NAMED)  \
        !           806:   FUNCTION_ARG (CUM, MODE, TYPE, NAMED)
        !           807: 
        !           808: /* For an arg passed partly in registers and partly in memory,
        !           809:    this is the number of registers used.
        !           810:    For args passed entirely in registers or entirely in memory, zero.  */
        !           811: 
        !           812: #define FUNCTION_ARG_PARTIAL_NREGS(CUM, MODE, TYPE, NAMED) 0
        !           813: 
        !           814: /* If defined, a C expression that gives the alignment boundary, in
        !           815:    bits, of an argument with the specified mode and type.  If it is
        !           816:    not defined,  `PARM_BOUNDARY' is used for all arguments.  */
        !           817: 
        !           818: #define FUNCTION_ARG_BOUNDARY(MODE, TYPE)                              \
        !           819:   (((TYPE) != 0)                                                       \
        !           820:        ? ((TYPE_ALIGN(TYPE) <= PARM_BOUNDARY)                          \
        !           821:                ? PARM_BOUNDARY                                         \
        !           822:                : TYPE_ALIGN(TYPE))                                     \
        !           823:        : ((GET_MODE_ALIGNMENT(MODE) <= PARM_BOUNDARY)                  \
        !           824:                ? PARM_BOUNDARY                                         \
        !           825:                : GET_MODE_ALIGNMENT(MODE)))
        !           826: 
        !           827: /* Arguments larger than eight bytes are passed by invisible reference */
        !           828: 
        !           829: #define FUNCTION_ARG_PASS_BY_REFERENCE(CUM, MODE, TYPE, NAMED)         \
        !           830:   ((TYPE) && int_size_in_bytes (TYPE) > 8)
        !           831: 
        !           832: extern struct rtx_def *hppa_compare_op0, *hppa_compare_op1;
        !           833: extern enum cmp_type hppa_branch_type;
        !           834: 
        !           835: /* Output the label for a function definition.  */
        !           836: #ifdef HP_FP_ARG_DESCRIPTOR_REVERSED
        !           837: #define ASM_DOUBLE_ARG_DESCRIPTORS(FILE, ARG0, ARG1)   \
        !           838:   do { fprintf (FILE, ",ARGW%d=FR", (ARG0));           \
        !           839:        fprintf (FILE, ",ARGW%d=FU", (ARG1));} while (0)
        !           840: #else
        !           841: #define ASM_DOUBLE_ARG_DESCRIPTORS(FILE, ARG0, ARG1)   \
        !           842:   do { fprintf (FILE, ",ARGW%d=FU", (ARG0));           \
        !           843:        fprintf (FILE, ",ARGW%d=FR", (ARG1));} while (0)
        !           844: #endif
        !           845: 
        !           846: #define ASM_DECLARE_FUNCTION_NAME(FILE, NAME, DECL) \
        !           847:     do { tree fntype = TREE_TYPE (TREE_TYPE (DECL));                   \
        !           848:         tree tree_type = TREE_TYPE (DECL);                             \
        !           849:         tree parm;                                                     \
        !           850:         int i;                                                         \
        !           851:         if (TREE_PUBLIC (DECL))                                        \
        !           852:           { extern int current_function_varargs;                       \
        !           853:             fputs ("\t.EXPORT ", FILE); assemble_name (FILE, NAME);    \
        !           854:             fputs (",ENTRY,PRIV_LEV=3", FILE);                         \
        !           855:             for (parm = DECL_ARGUMENTS (DECL), i = 0; parm && i < 4;   \
        !           856:                  parm = TREE_CHAIN (parm))                             \
        !           857:               {                                                        \
        !           858:                 if (TYPE_MODE (DECL_ARG_TYPE (parm)) == SFmode)        \
        !           859:                   fprintf (FILE, ",ARGW%d=FR", i++);                   \
        !           860:                 else if (TYPE_MODE (DECL_ARG_TYPE (parm)) == DFmode)   \
        !           861:                   {                                                    \
        !           862:                     if (i <= 2)                                        \
        !           863:                       {                                                \
        !           864:                         if (i == 1) i++;                               \
        !           865:                         ASM_DOUBLE_ARG_DESCRIPTORS (FILE, i++, i++);   \
        !           866:                       }                                                \
        !           867:                     else                                               \
        !           868:                       break;                                           \
        !           869:                   }                                                    \
        !           870:                 else                                                   \
        !           871:                   {                                                    \
        !           872:                     int arg_size =                                     \
        !           873:                       FUNCTION_ARG_SIZE (TYPE_MODE (DECL_ARG_TYPE (parm)),\
        !           874:                                          DECL_ARG_TYPE (parm));        \
        !           875:                     if (arg_size == 2 && i <= 2)                       \
        !           876:                       {                                                \
        !           877:                         if (i == 1) i++;                               \
        !           878:                         fprintf (FILE, ",ARGW%d=GR", i++);             \
        !           879:                         fprintf (FILE, ",ARGW%d=GR", i++);             \
        !           880:                       }                                                \
        !           881:                     else if (arg_size == 1)                            \
        !           882:                       fprintf (FILE, ",ARGW%d=GR", i++);               \
        !           883:                     else                                               \
        !           884:                       i += arg_size;                                   \
        !           885:                   }                                                    \
        !           886:               }                                                        \
        !           887:             /* anonymous args */                                       \
        !           888:             if ((TYPE_ARG_TYPES (tree_type) != 0                       \
        !           889:                  && (TREE_VALUE (tree_last (TYPE_ARG_TYPES (tree_type)))\
        !           890:                      != void_type_node))                               \
        !           891:                 || current_function_varargs)                           \
        !           892:               {                                                        \
        !           893:                 for (; i < 4; i++)                                     \
        !           894:                   fprintf (FILE, ",ARGW%d=GR", i);                     \
        !           895:               }                                                        \
        !           896:             if (TYPE_MODE (fntype) == DFmode)                          \
        !           897:               fprintf (FILE, ",RTNVAL=FR");                            \
        !           898:             else if (TYPE_MODE (fntype) == SFmode)                     \
        !           899:               fprintf (FILE, ",RTNVAL=FU");                            \
        !           900:             else if (fntype != void_type_node)                         \
        !           901:               fprintf (FILE, ",RTNVAL=GR");                            \
        !           902:             fputs ("\n", FILE);                                        \
        !           903:           }                                                            \
        !           904:         ASM_OUTPUT_LABEL (FILE, NAME);} while (0)
        !           905: 
        !           906: /* This macro generates the assembly code for function entry.
        !           907:    FILE is a stdio stream to output the code to.
        !           908:    SIZE is an int: how many units of temporary storage to allocate.
        !           909:    Refer to the array `regs_ever_live' to determine which registers
        !           910:    to save; `regs_ever_live[I]' is nonzero if register number I
        !           911:    is ever used in the function.  This macro is responsible for
        !           912:    knowing which registers should not be saved even if used.  */
        !           913: 
        !           914: /* On HP-PA, move-double insns between fpu and cpu need an 8-byte block
        !           915:    of memory.  If any fpu reg is used in the function, we allocate
        !           916:    such a block here, at the bottom of the frame, just in case it's needed.
        !           917: 
        !           918:    If this function is a leaf procedure, then we may choose not
        !           919:    to do a "save" insn.  The decision about whether or not
        !           920:    to do this is made in regclass.c.  */
        !           921: 
        !           922: #define FUNCTION_PROLOGUE(FILE, SIZE) \
        !           923:   output_function_prologue (FILE, SIZE)
        !           924: 
        !           925: /* Output assembler code to FILE to increment profiler label # LABELNO
        !           926:    for profiling a function entry.
        !           927: 
        !           928:    Because HPUX _mcount is so different, we actually emit the
        !           929:    profiling code in function_prologue. This just stores LABELNO for
        !           930:    that. */
        !           931: 
        !           932: #define PROFILE_BEFORE_PROLOGUE
        !           933: #define FUNCTION_PROFILER(FILE, LABELNO) \
        !           934: { extern int hp_profile_labelno; hp_profile_labelno = (LABELNO);}
        !           935: 
        !           936: /* EXIT_IGNORE_STACK should be nonzero if, when returning from a function,
        !           937:    the stack pointer does not matter.  The value is tested only in
        !           938:    functions that have frame pointers.
        !           939:    No definition is equivalent to always zero.  */
        !           940: 
        !           941: extern int may_call_alloca;
        !           942: extern int current_function_pretend_args_size;
        !           943: 
        !           944: #define EXIT_IGNORE_STACK      \
        !           945:  (get_frame_size () != 0       \
        !           946:   || current_function_calls_alloca || current_function_outgoing_args_size)
        !           947: 
        !           948: 
        !           949: /* This macro generates the assembly code for function exit,
        !           950:    on machines that need it.  If FUNCTION_EPILOGUE is not defined
        !           951:    then individual return instructions are generated for each
        !           952:    return statement.  Args are same as for FUNCTION_PROLOGUE.
        !           953: 
        !           954:    The function epilogue should not depend on the current stack pointer!
        !           955:    It should use the frame pointer only.  This is mandatory because
        !           956:    of alloca; we also take advantage of it to omit stack adjustments
        !           957:    before returning.  */
        !           958: 
        !           959: /* This declaration is needed due to traditional/ANSI
        !           960:    incompatibilities which cannot be #ifdefed away
        !           961:    because they occur inside of macros.  Sigh.  */
        !           962: extern union tree_node *current_function_decl;
        !           963: 
        !           964: #define FUNCTION_EPILOGUE(FILE, SIZE)                  \
        !           965:   output_function_epilogue (FILE, SIZE)
        !           966: 
        !           967: /* Output assembler code for a block containing the constant parts
        !           968:    of a trampoline, leaving space for the variable parts.\
        !           969: 
        !           970:    The trampoline sets the static chain pointer to STATIC_CHAIN_REGNUM
        !           971:    and then branches to the specified routine.
        !           972: 
        !           973:    This code template is copied from text segment to stack location
        !           974:    and then patched with INITIALIZE_TRAMPOLINE to contain
        !           975:    valid values, and then entered as a subroutine. 
        !           976: 
        !           977:    It is best to keep this as small as possible to avoid having to 
        !           978:    flush multiple lines in the cache.  */
        !           979: 
        !           980: #define TRAMPOLINE_TEMPLATE(FILE) \
        !           981: {                                              \
        !           982:   fprintf (FILE, "\tldw 12(0,%%r22),%%r21\n"); \
        !           983:   fprintf (FILE, "\tbe 0(4,%%r21)\n");         \
        !           984:   fprintf (FILE, "\tldw 16(0,%%r22),%%r29\n"); \
        !           985:   fprintf (FILE, "\t.word 0\n");               \
        !           986:   fprintf (FILE, "\t.word 0\n");               \
        !           987: }
        !           988: 
        !           989: /* Length in units of the trampoline for entering a nested function.
        !           990: 
        !           991:    Flush the cache entries corresponding to the first and last addresses
        !           992:    of the trampoline.  This is necessary as the trampoline may cross two
        !           993:    cache lines.  
        !           994: 
        !           995:    If the trampoline ever grows to > 32 bytes, then it will become
        !           996:    necessary to hack on the cacheflush pattern in pa.md.  */
        !           997: 
        !           998: #define TRAMPOLINE_SIZE (5 * 4)
        !           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:    Move the function address to the trampoline template at offset 12.
        !          1005:    Move the static chain value to trampoline template at offset 16.  */
        !          1006: 
        !          1007: #define INITIALIZE_TRAMPOLINE(TRAMP, FNADDR, CXT) \
        !          1008: {                                                              \
        !          1009:   rtx start_addr, end_addr, mem;                               \
        !          1010:                                                                \
        !          1011:   start_addr = memory_address (Pmode, plus_constant ((TRAMP), 12));\
        !          1012:   emit_move_insn (gen_rtx (MEM, Pmode, start_addr), (FNADDR)); \
        !          1013:   start_addr = memory_address (Pmode, plus_constant ((TRAMP), 16));\
        !          1014:   emit_move_insn (gen_rtx (MEM, Pmode, start_addr), (CXT));    \
        !          1015:   /* fdc and fic only use registers for the address to flush,  \
        !          1016:      they do not accept integer displacements.  */             \
        !          1017:   start_addr = force_reg (SImode, (TRAMP));                    \
        !          1018:   end_addr = force_reg (SImode, plus_constant ((TRAMP), 8));   \
        !          1019:   emit_insn (gen_cacheflush (start_addr, end_addr));           \
        !          1020: }
        !          1021: 
        !          1022: /* Emit code for a call to builtin_saveregs.  We must emit USE insns which
        !          1023:    reference the 4 integer arg registers and 4 fp arg registers.
        !          1024:    Ordinarily they are not call used registers, but they are for
        !          1025:    _builtin_saveregs, so we must make this explicit.  */
        !          1026: 
        !          1027: #define EXPAND_BUILTIN_SAVEREGS(ARGLIST) (rtx)hppa_builtin_saveregs (ARGLIST)
        !          1028: 
        !          1029: 
        !          1030: /* Addressing modes, and classification of registers for them.  */
        !          1031: 
        !          1032: #define HAVE_POST_INCREMENT
        !          1033: #define HAVE_POST_DECREMENT
        !          1034: 
        !          1035: #define HAVE_PRE_DECREMENT
        !          1036: #define HAVE_PRE_INCREMENT
        !          1037: 
        !          1038: /* Macros to check register numbers against specific register classes.  */
        !          1039: 
        !          1040: /* These assume that REGNO is a hard or pseudo reg number.
        !          1041:    They give nonzero only if REGNO is a hard reg of the suitable class
        !          1042:    or a pseudo reg currently allocated to a suitable hard reg.
        !          1043:    Since they use reg_renumber, they are safe only once reg_renumber
        !          1044:    has been allocated, which happens in local-alloc.c.  */
        !          1045: 
        !          1046: #define REGNO_OK_FOR_INDEX_P(REGNO) \
        !          1047:   ((REGNO) && ((REGNO) < 32 || (unsigned) reg_renumber[REGNO] < 32))
        !          1048: #define REGNO_OK_FOR_BASE_P(REGNO)  \
        !          1049:   ((REGNO) && ((REGNO) < 32 || (unsigned) reg_renumber[REGNO] < 32))
        !          1050: #define REGNO_OK_FOR_FP_P(REGNO) \
        !          1051:   (((REGNO) >= 32 && (REGNO) <= 99)\
        !          1052:    || (reg_renumber[REGNO] >= 32 && reg_renumber[REGNO] <= 99))
        !          1053: 
        !          1054: /* Now macros that check whether X is a register and also,
        !          1055:    strictly, whether it is in a specified class.
        !          1056: 
        !          1057:    These macros are specific to the the HP-PA, and may be used only
        !          1058:    in code for printing assembler insns and in conditions for
        !          1059:    define_optimization.  */
        !          1060: 
        !          1061: /* 1 if X is an fp register.  */
        !          1062: 
        !          1063: #define FP_REG_P(X) (REG_P (X) && REGNO_OK_FOR_FP_P (REGNO (X)))
        !          1064: 
        !          1065: /* Maximum number of registers that can appear in a valid memory address.  */
        !          1066: 
        !          1067: #define MAX_REGS_PER_ADDRESS 2
        !          1068: 
        !          1069: /* Recognize any constant value that is a valid address except
        !          1070:    for symbolic addresses.  We get better CSE by rejecting them
        !          1071:    here and allowing hppa_legitimize_address to break them up.  We
        !          1072:    use most of the constants accepted by CONSTANT_P, except CONST_DOUBLE.  */
        !          1073: 
        !          1074: #define CONSTANT_ADDRESS_P(X) \
        !          1075:   ((GET_CODE (X) == LABEL_REF || GET_CODE (X) == SYMBOL_REF            \
        !          1076:    || GET_CODE (X) == CONST_INT || GET_CODE (X) == CONST               \
        !          1077:    || GET_CODE (X) == HIGH)                                            \
        !          1078:    && (reload_in_progress || reload_completed || ! symbolic_expression_p (X)))
        !          1079: 
        !          1080: /* Include all constant integers and constant doubles, but not
        !          1081:    floating-point, except for floating-point zero. 
        !          1082: 
        !          1083:    Also reject function labels as reload can not handle them correctly
        !          1084:    right now.  (Fix this for 2.5).  */
        !          1085: #define LEGITIMATE_CONSTANT_P(X)               \
        !          1086:   ((GET_MODE_CLASS (GET_MODE (X)) != MODE_FLOAT        \
        !          1087:     || (X) == CONST0_RTX (GET_MODE (X)))       \
        !          1088:    && ! function_label_operand (X, VOIDmode))
        !          1089: 
        !          1090: /* Subroutine for EXTRA_CONSTRAINT.  
        !          1091: 
        !          1092:    Return 1 iff OP is a pseudo which did not get a hard register and
        !          1093:    we are running the reload pass.  */
        !          1094: 
        !          1095: #define IS_RELOADING_PSEUDO_P(OP) \
        !          1096:   ((reload_in_progress                                 \
        !          1097:     && GET_CODE (OP) == REG                            \
        !          1098:     && REGNO (OP) >= FIRST_PSEUDO_REGISTER             \
        !          1099:     && reg_renumber [REGNO (OP)] < 0))
        !          1100: 
        !          1101: /* Optional extra constraints for this machine. Borrowed from sparc.h.
        !          1102: 
        !          1103:    For the HPPA, `Q' means that this is a memory operand but not a
        !          1104:    symbolic memory operand.  Note that an unassigned pseudo register
        !          1105:    is such a memory operand.  Needed because reload will generate
        !          1106:    these things in insns and then not re-recognize the insns, causing
        !          1107:    constrain_operands to fail.
        !          1108: 
        !          1109:    Also note `Q' accepts any memory operand during the reload pass.
        !          1110:    This includes out-of-range displacements in reg+d addressing. 
        !          1111:    This makes for better code.  (??? For 2.5 address this issue).
        !          1112: 
        !          1113:    `R' is unused.
        !          1114: 
        !          1115:    `S' handles constraints for calls.
        !          1116: 
        !          1117:    `T' is for fp loads and stores.  */
        !          1118: #define EXTRA_CONSTRAINT(OP, C)                                \
        !          1119:   ((C) == 'Q' ?                                                \
        !          1120:    (IS_RELOADING_PSEUDO_P (OP)                         \
        !          1121:     || (GET_CODE (OP) == MEM                           \
        !          1122:        && reload_in_progress)                          \
        !          1123:     || (GET_CODE (OP) == MEM                           \
        !          1124:        && memory_address_p (GET_MODE (OP), XEXP (OP, 0))\
        !          1125:        && ! symbolic_memory_operand (OP, VOIDmode)))   \
        !          1126:    : ((C) == 'T' ?                                     \
        !          1127:       (GET_CODE (OP) == MEM                            \
        !          1128:        /* Using DFmode forces only short displacements \
        !          1129:          to be recognized as valid in reg+d addresses.  */\
        !          1130:        && memory_address_p (DFmode, XEXP (OP, 0)))     \
        !          1131:    : ((C) == 'S' ?                                     \
        !          1132:       ((CONSTANT_P (OP) && ! TARGET_LONG_CALLS)                \
        !          1133:         || (reload_in_progress                                 \
        !          1134:            ? strict_memory_address_p (Pmode, OP)       \
        !          1135:            : memory_address_p (Pmode, OP))             \
        !          1136:        || (reload_in_progress                          \
        !          1137:            && GET_CODE (OP) == REG                     \
        !          1138:            && reg_renumber[REGNO (OP)] > 0)) : 0)))
        !          1139: 
        !          1140: /* The macros REG_OK_FOR..._P assume that the arg is a REG rtx
        !          1141:    and check its validity for a certain class.
        !          1142:    We have two alternate definitions for each of them.
        !          1143:    The usual definition accepts all pseudo regs; the other rejects
        !          1144:    them unless they have been allocated suitable hard regs.
        !          1145:    The symbol REG_OK_STRICT causes the latter definition to be used.
        !          1146: 
        !          1147:    Most source files want to accept pseudo regs in the hope that
        !          1148:    they will get allocated to the class that the insn wants them to be in.
        !          1149:    Source files for reload pass need to be strict.
        !          1150:    After reload, it makes no difference, since pseudo regs have
        !          1151:    been eliminated by then.  */
        !          1152: 
        !          1153: #ifndef REG_OK_STRICT
        !          1154: 
        !          1155: /* Nonzero if X is a hard reg that can be used as an index
        !          1156:    or if it is a pseudo reg.  */
        !          1157: #define REG_OK_FOR_INDEX_P(X) \
        !          1158: (REGNO (X) && (REGNO (X) < 32 || REGNO (X) >= FIRST_PSEUDO_REGISTER))
        !          1159: /* Nonzero if X is a hard reg that can be used as a base reg
        !          1160:    or if it is a pseudo reg.  */
        !          1161: #define REG_OK_FOR_BASE_P(X) \
        !          1162: (REGNO (X) && (REGNO (X) < 32 || REGNO (X) >= FIRST_PSEUDO_REGISTER))
        !          1163: 
        !          1164: #else
        !          1165: 
        !          1166: /* Nonzero if X is a hard reg that can be used as an index.  */
        !          1167: #define REG_OK_FOR_INDEX_P(X) REGNO_OK_FOR_INDEX_P (REGNO (X))
        !          1168: /* Nonzero if X is a hard reg that can be used as a base reg.  */
        !          1169: #define REG_OK_FOR_BASE_P(X) REGNO_OK_FOR_BASE_P (REGNO (X))
        !          1170: 
        !          1171: #endif
        !          1172: 
        !          1173: /* GO_IF_LEGITIMATE_ADDRESS recognizes an RTL expression
        !          1174:    that is a valid memory address for an instruction.
        !          1175:    The MODE argument is the machine mode for the MEM expression
        !          1176:    that wants to use this address.
        !          1177: 
        !          1178:    On the HP-PA, the actual legitimate addresses must be
        !          1179:    REG+REG, REG+(REG*SCALE) or REG+SMALLINT.
        !          1180:    But we can treat a SYMBOL_REF as legitimate if it is part of this
        !          1181:    function's constant-pool, because such addresses can actually
        !          1182:    be output as REG+SMALLINT.  */
        !          1183: 
        !          1184: #define VAL_5_BITS_P(X) ((unsigned)(X) + 0x10 < 0x20)
        !          1185: #define INT_5_BITS(X) VAL_5_BITS_P (INTVAL (X))
        !          1186: 
        !          1187: #define VAL_U5_BITS_P(X) ((unsigned)(X) < 0x20)
        !          1188: #define INT_U5_BITS(X) VAL_U5_BITS_P (INTVAL (X))
        !          1189: 
        !          1190: #define VAL_11_BITS_P(X) ((unsigned)(X) + 0x400 < 0x800)
        !          1191: #define INT_11_BITS(X) VAL_11_BITS_P (INTVAL (X))
        !          1192: 
        !          1193: #define VAL_14_BITS_P(X) ((unsigned)(X) + 0x2000 < 0x4000)
        !          1194: #define INT_14_BITS(X) VAL_14_BITS_P (INTVAL (X))
        !          1195: 
        !          1196: #define GO_IF_LEGITIMATE_ADDRESS(MODE, X, ADDR)  \
        !          1197: {                                                      \
        !          1198:   if ((REG_P (X) && REG_OK_FOR_BASE_P (X))             \
        !          1199:       || ((GET_CODE (X) == PRE_DEC || GET_CODE (X) == POST_DEC         \
        !          1200:           || GET_CODE (X) == PRE_INC || GET_CODE (X) == POST_INC)      \
        !          1201:          && REG_P (XEXP (X, 0))                        \
        !          1202:          && REG_OK_FOR_BASE_P (XEXP (X, 0))))          \
        !          1203:     goto ADDR;                                         \
        !          1204:   else if (GET_CODE (X) == PLUS)                       \
        !          1205:     {                                                  \
        !          1206:       rtx base = 0, index;                             \
        !          1207:       if (flag_pic && XEXP (X, 0) == pic_offset_table_rtx)\
        !          1208:        {                                               \
        !          1209:          if (GET_CODE (XEXP (X, 1)) == REG             \
        !          1210:              && REG_OK_FOR_BASE_P (XEXP (X, 1)))       \
        !          1211:            goto ADDR;                                  \
        !          1212:          else if (flag_pic == 1                        \
        !          1213:                   && GET_CODE (XEXP (X, 1)) != REG     \
        !          1214:                   && GET_CODE (XEXP (X, 1)) != LO_SUM  \
        !          1215:                   && GET_CODE (XEXP (X, 1)) != MEM)    \
        !          1216:            goto ADDR;                                  \
        !          1217:        }                                               \
        !          1218:       else if (REG_P (XEXP (X, 0))                     \
        !          1219:          && REG_OK_FOR_BASE_P (XEXP (X, 0)))           \
        !          1220:        base = XEXP (X, 0), index = XEXP (X, 1);        \
        !          1221:       else if (REG_P (XEXP (X, 1))                     \
        !          1222:               && REG_OK_FOR_BASE_P (XEXP (X, 1)))      \
        !          1223:        base = XEXP (X, 1), index = XEXP (X, 0);        \
        !          1224:       if (base != 0)                                   \
        !          1225:        if (GET_CODE (index) == CONST_INT               \
        !          1226:            && ((INT_14_BITS (index) && (MODE) != SFmode && (MODE) != DFmode) \
        !          1227:                || INT_5_BITS (index)))                 \
        !          1228:          goto ADDR;                                    \
        !          1229:     }                                                  \
        !          1230:   else if (GET_CODE (X) == LO_SUM                      \
        !          1231:           && GET_CODE (XEXP (X, 0)) == REG             \
        !          1232:           && REG_OK_FOR_BASE_P (XEXP (X, 0))           \
        !          1233:           && CONSTANT_P (XEXP (X, 1))                  \
        !          1234:           && (MODE) != SFmode                          \
        !          1235:           && (MODE) != DFmode)                         \
        !          1236:     goto ADDR;                                         \
        !          1237:   else if (GET_CODE (X) == LO_SUM                      \
        !          1238:           && GET_CODE (XEXP (X, 0)) == SUBREG          \
        !          1239:           && GET_CODE (SUBREG_REG (XEXP (X, 0))) == REG\
        !          1240:           && REG_OK_FOR_BASE_P (SUBREG_REG (XEXP (X, 0)))\
        !          1241:           && CONSTANT_P (XEXP (X, 1))                  \
        !          1242:           && (MODE) != SFmode                          \
        !          1243:           && (MODE) != DFmode)                         \
        !          1244:     goto ADDR;                                         \
        !          1245:   else if (GET_CODE (X) == LABEL_REF                   \
        !          1246:           || (GET_CODE (X) == CONST_INT                \
        !          1247:               && INT_14_BITS (X)))                     \
        !          1248:     goto ADDR;                                         \
        !          1249: }
        !          1250: 
        !          1251: /* Try machine-dependent ways of modifying an illegitimate address
        !          1252:    to be legitimate.  If we find one, return the new, valid address.
        !          1253:    This macro is used in only one place: `memory_address' in explow.c.
        !          1254: 
        !          1255:    OLDX is the address as it was before break_out_memory_refs was called.
        !          1256:    In some cases it is useful to look at this to decide what needs to be done.
        !          1257: 
        !          1258:    MODE and WIN are passed so that this macro can use
        !          1259:    GO_IF_LEGITIMATE_ADDRESS.
        !          1260: 
        !          1261:    It is always safe for this macro to do nothing.  It exists to recognize
        !          1262:    opportunities to optimize the output.  */
        !          1263: 
        !          1264: extern struct rtx_def *hppa_legitimize_address ();
        !          1265: #define LEGITIMIZE_ADDRESS(X, OLDX, MODE, WIN) \
        !          1266: { rtx orig_x = (X);                            \
        !          1267:   (X) = hppa_legitimize_address (X, OLDX, MODE);       \
        !          1268:   if ((X) != orig_x && memory_address_p (MODE, X)) \
        !          1269:     goto WIN; }
        !          1270: 
        !          1271: /* Go to LABEL if ADDR (a legitimate address expression)
        !          1272:    has an effect that depends on the machine mode it is used for.  */
        !          1273: 
        !          1274: #define GO_IF_MODE_DEPENDENT_ADDRESS(ADDR,LABEL)       \
        !          1275:   if (GET_CODE (ADDR) == PRE_DEC       \
        !          1276:       || GET_CODE (ADDR) == POST_DEC   \
        !          1277:       || GET_CODE (ADDR) == PRE_INC    \
        !          1278:       || GET_CODE (ADDR) == POST_INC)  \
        !          1279:     goto LABEL
        !          1280: 
        !          1281: /* Define this macro if references to a symbol must be treated
        !          1282:    differently depending on something about the variable or
        !          1283:    function named by the symbol (such as what section it is in).
        !          1284: 
        !          1285:    The macro definition, if any, is executed immediately after the
        !          1286:    rtl for DECL or other node is created.
        !          1287:    The value of the rtl will be a `mem' whose address is a
        !          1288:    `symbol_ref'.
        !          1289: 
        !          1290:    The usual thing for this macro to do is to a flag in the
        !          1291:    `symbol_ref' (such as `SYMBOL_REF_FLAG') or to store a modified
        !          1292:    name string in the `symbol_ref' (if one bit is not enough
        !          1293:    information).
        !          1294: 
        !          1295:    On the HP-PA we use this to indicate if a symbol is in text or
        !          1296:    data space.  Also, function labels need special treatment. */
        !          1297: 
        !          1298: #define TEXT_SPACE_P(DECL)\
        !          1299:   (TREE_CODE (DECL) == FUNCTION_DECL                                   \
        !          1300:    || (TREE_CODE (DECL) == VAR_DECL                                    \
        !          1301:        && TREE_READONLY (DECL) && ! TREE_SIDE_EFFECTS (DECL)           \
        !          1302:        && !flag_pic)                                                   \
        !          1303:    || (*tree_code_type[(int) TREE_CODE (DECL)] == 'c'                  \
        !          1304:        && !(TREE_CODE (DECL) == STRING_CST && flag_writable_strings)))
        !          1305: 
        !          1306: #define FUNCTION_NAME_P(NAME) \
        !          1307: (*(NAME) == '@' || (*(NAME) == '*' && *((NAME) + 1) == '@'))
        !          1308: 
        !          1309: #define ENCODE_SECTION_INFO(DECL)\
        !          1310: do                                                     \
        !          1311:   { if (TEXT_SPACE_P (DECL))                           \
        !          1312:       {        rtx _rtl;                                       \
        !          1313:        if (TREE_CODE (DECL) == FUNCTION_DECL           \
        !          1314:            || TREE_CODE (DECL) == VAR_DECL)            \
        !          1315:          _rtl = DECL_RTL (DECL);                       \
        !          1316:        else                                            \
        !          1317:          _rtl = TREE_CST_RTL (DECL);                   \
        !          1318:        SYMBOL_REF_FLAG (XEXP (_rtl, 0)) = 1;           \
        !          1319:        if (TREE_CODE (DECL) == FUNCTION_DECL)          \
        !          1320:          hppa_encode_label (XEXP (DECL_RTL (DECL), 0));\
        !          1321:       }                                                        \
        !          1322:   }                                                    \
        !          1323: while (0)
        !          1324:   
        !          1325: /* Store the user-specified part of SYMBOL_NAME in VAR.
        !          1326:    This is sort of inverse to ENCODE_SECTION_INFO.  */
        !          1327: 
        !          1328: #define STRIP_NAME_ENCODING(VAR,SYMBOL_NAME)   \
        !          1329:   (VAR) = ((SYMBOL_NAME)  + ((SYMBOL_NAME)[0] == '*' ? \
        !          1330:                             1 + (SYMBOL_NAME)[1] == '@'\
        !          1331:                             : (SYMBOL_NAME)[0] == '@'))
        !          1332: 
        !          1333: /* Specify the machine mode that this machine uses
        !          1334:    for the index in the tablejump instruction.  */
        !          1335: #define CASE_VECTOR_MODE SImode
        !          1336: 
        !          1337: /* Define this if the tablejump instruction expects the table
        !          1338:    to contain offsets from the address of the table.
        !          1339:    Do not define this if the table should contain absolute addresses.  */
        !          1340: /* #define CASE_VECTOR_PC_RELATIVE */
        !          1341: 
        !          1342: #define CASE_DROPS_THROUGH
        !          1343: /* Specify the tree operation to be used to convert reals to integers.  */
        !          1344: #define IMPLICIT_FIX_EXPR FIX_ROUND_EXPR
        !          1345: 
        !          1346: /* This is the kind of divide that is easiest to do in the general case.  */
        !          1347: #define EASY_DIV_EXPR TRUNC_DIV_EXPR
        !          1348: 
        !          1349: /* Define this as 1 if `char' should by default be signed; else as 0.  */
        !          1350: #define DEFAULT_SIGNED_CHAR 1
        !          1351: 
        !          1352: /* Max number of bytes we can move from memory to memory
        !          1353:    in one reasonably fast instruction.  */
        !          1354: #define MOVE_MAX 8
        !          1355: 
        !          1356: /* Define if normal loads of shorter-than-word items from memory clears
        !          1357:    the rest of the bigs in the register.  */
        !          1358: #define BYTE_LOADS_ZERO_EXTEND
        !          1359: 
        !          1360: /* Nonzero if access to memory by bytes is slow and undesirable.  */
        !          1361: #define SLOW_BYTE_ACCESS 1
        !          1362: 
        !          1363: /* Do not break .stabs pseudos into continuations.  */
        !          1364: #define DBX_CONTIN_LENGTH 0
        !          1365: 
        !          1366: /* Value is 1 if truncating an integer of INPREC bits to OUTPREC bits
        !          1367:    is done just by pretending it is already truncated.  */
        !          1368: #define TRULY_NOOP_TRUNCATION(OUTPREC, INPREC) 1
        !          1369: 
        !          1370: /* We assume that the store-condition-codes instructions store 0 for false
        !          1371:    and some other value for true.  This is the value stored for true.  */
        !          1372: 
        !          1373: #define STORE_FLAG_VALUE 1
        !          1374: 
        !          1375: /* When a prototype says `char' or `short', really pass an `int'.  */
        !          1376: #define PROMOTE_PROTOTYPES
        !          1377: 
        !          1378: /* Specify the machine mode that pointers have.
        !          1379:    After generation of rtl, the compiler makes no further distinction
        !          1380:    between pointers and any other objects of this machine mode.  */
        !          1381: #define Pmode SImode
        !          1382: 
        !          1383: /* Add any extra modes needed to represent the condition code.
        !          1384: 
        !          1385:    HPPA floating comparisons produce condition codes. */
        !          1386: #define EXTRA_CC_MODES CCFPmode
        !          1387: 
        !          1388: /* Define the names for the modes specified above.  */
        !          1389: #define EXTRA_CC_NAMES "CCFP"
        !          1390: 
        !          1391: /* Given a comparison code (EQ, NE, etc.) and the first operand of a COMPARE,
        !          1392:    return the mode to be used for the comparison.  For floating-point, CCFPmode
        !          1393:    should be used.  CC_NOOVmode should be used when the first operand is a
        !          1394:    PLUS, MINUS, or NEG.  CCmode should be used when no special processing is
        !          1395:    needed.  */
        !          1396: #define SELECT_CC_MODE(OP,X,Y) \
        !          1397:   (GET_MODE_CLASS (GET_MODE (X)) == MODE_FLOAT ? CCFPmode : CCmode)    \
        !          1398: 
        !          1399: /* A function address in a call instruction
        !          1400:    is a byte address (for indexing purposes)
        !          1401:    so give the MEM rtx a byte's mode.  */
        !          1402: #define FUNCTION_MODE SImode
        !          1403:   
        !          1404: /* Define this if addresses of constant functions
        !          1405:    shouldn't be put through pseudo regs where they can be cse'd.
        !          1406:    Desirable on machines where ordinary constants are expensive
        !          1407:    but a CALL with constant address is cheap.  */
        !          1408: #define NO_FUNCTION_CSE
        !          1409: 
        !          1410: /* Define this if shift instructions ignore all but the low-order
        !          1411:    few bits. */
        !          1412: #define SHIFT_COUNT_TRUNCATED
        !          1413: 
        !          1414: /* Use atexit for static constructors/destructors, instead of defining
        !          1415:    our own exit function.  */
        !          1416: #define HAVE_ATEXIT
        !          1417: 
        !          1418: /* Compute the cost of computing a constant rtl expression RTX
        !          1419:    whose rtx-code is CODE.  The body of this macro is a portion
        !          1420:    of a switch statement.  If the code is computed here,
        !          1421:    return it with a return statement.  Otherwise, break from the switch.  */
        !          1422: 
        !          1423: #define CONST_COSTS(RTX,CODE,OUTER_CODE) \
        !          1424:   case CONST_INT:                                              \
        !          1425:     if (INTVAL (RTX) == 0) return 0;                           \
        !          1426:     if (INT_14_BITS (RTX)) return 1;                           \
        !          1427:   case HIGH:                                                   \
        !          1428:     return 2;                                                  \
        !          1429:   case CONST:                                                  \
        !          1430:   case LABEL_REF:                                              \
        !          1431:   case SYMBOL_REF:                                             \
        !          1432:     return 4;                                                  \
        !          1433:   case CONST_DOUBLE:                                           \
        !          1434:     if (RTX == CONST0_RTX (DFmode) || RTX == CONST0_RTX (SFmode)\
        !          1435:        && OUTER_CODE != SET)                                   \
        !          1436:       return 0;                                                        \
        !          1437:     else                                                       \
        !          1438:       return 8;
        !          1439: 
        !          1440: #define ADDRESS_COST(RTX) \
        !          1441:   (GET_CODE (RTX) == REG ? 1 : hppa_address_cost (RTX))
        !          1442: 
        !          1443: /* Compute extra cost of moving data between one register class
        !          1444:    and another.
        !          1445: 
        !          1446:    Make moves from SAR so expensive they should never happen.
        !          1447: 
        !          1448:    Copies involving a FP register and a non-FP register are relatively 
        !          1449:    expensive because they must go through memory.
        !          1450: 
        !          1451:    Other copies are reasonably cheap.  */
        !          1452: #define REGISTER_MOVE_COST(CLASS1, CLASS2) \
        !          1453:  (CLASS1 == SHIFT_REGS ? 0xffff                                        \
        !          1454:   : FP_REG_CLASS_P (CLASS1) && ! FP_REG_CLASS_P (CLASS2) ? 16  \
        !          1455:   : FP_REG_CLASS_P (CLASS2) && ! FP_REG_CLASS_P (CLASS1) ? 16  \
        !          1456:   : 2)
        !          1457: 
        !          1458: 
        !          1459: /* Provide the costs of a rtl expression.  This is in the body of a
        !          1460:    switch on CODE.  The purpose for the cost of MULT is to encourage
        !          1461:    `synth_mult' to find a synthetic multiply when reasonable.  */
        !          1462: 
        !          1463: #define RTX_COSTS(X,CODE,OUTER_CODE)                   \
        !          1464:   case MULT:                                           \
        !          1465:     return TARGET_SNAKE && ! TARGET_DISABLE_FPREGS     \
        !          1466:       ? COSTS_N_INSNS (8) : COSTS_N_INSNS (20);        \
        !          1467:   case DIV:                                            \
        !          1468:   case UDIV:                                           \
        !          1469:   case MOD:                                            \
        !          1470:   case UMOD:                                           \
        !          1471:     return COSTS_N_INSNS (60);                         \
        !          1472:   case PLUS: /* this includes shNadd insns */          \
        !          1473:     return COSTS_N_INSNS (1) + 2;
        !          1474: 
        !          1475: /* Adjust the cost of dependencies.  */
        !          1476: 
        !          1477: #define ADJUST_COST(INSN,LINK,DEP,COST) \
        !          1478:   (COST) = pa_adjust_cost (INSN, LINK, DEP, COST)
        !          1479: 
        !          1480: /* Handling the special cases is going to get too complicated for a macro,
        !          1481:    just call `pa_adjust_insn_length' to do the real work.  */
        !          1482: #define ADJUST_INSN_LENGTH(INSN, LENGTH)       \
        !          1483:   LENGTH += pa_adjust_insn_length (INSN, LENGTH);
        !          1484: 
        !          1485: /* Enable a bug fix.  (This is for extra caution.)  */
        !          1486: #define SHORTEN_WITH_ADJUST_INSN_LENGTH
        !          1487: 
        !          1488: /* Millicode insns are actually function calls with some special
        !          1489:    constraints on arguments and register usage.
        !          1490: 
        !          1491:    Millicode calls always expect their arguments in the integer argument
        !          1492:    registers, and always return their result in %r29 (ret1).  They
        !          1493:    are expected to clobber their arguments, %r1, %r29, and %r31 and
        !          1494:    nothing else.
        !          1495: 
        !          1496:    These macros tell reorg that the references to arguments and 
        !          1497:    register clobbers for millicode calls do not appear to happen 
        !          1498:    until after the millicode call.  This allows reorg to put insns
        !          1499:    which set the argument registers into the delay slot of the millicode
        !          1500:    call -- thus they act more like traditional CALL_INSNs.
        !          1501: 
        !          1502:    get_attr_type will try to recognize the given insn, so make sure to
        !          1503:    filter out things it will not accept -- SEQUENCE, USE and CLOBBER insns
        !          1504:    in particular.  */
        !          1505: #define INSN_SETS_ARE_DELAYED(X) \
        !          1506:   ((GET_CODE (X) == INSN                       \
        !          1507:     && GET_CODE (PATTERN (X)) != SEQUENCE      \
        !          1508:     && GET_CODE (PATTERN (X)) != USE           \
        !          1509:     && GET_CODE (PATTERN (X)) != CLOBBER       \
        !          1510:     && get_attr_type (X) == TYPE_MILLI))
        !          1511: 
        !          1512: #define INSN_REFERENCES_ARE_DELAYED(X) \
        !          1513:   ((GET_CODE (X) == INSN                       \
        !          1514:     && GET_CODE (PATTERN (X)) != SEQUENCE      \
        !          1515:     && GET_CODE (PATTERN (X)) != USE           \
        !          1516:     && GET_CODE (PATTERN (X)) != CLOBBER       \
        !          1517:     && get_attr_type (X) == TYPE_MILLI))       
        !          1518: 
        !          1519: 
        !          1520: /* Control the assembler format that we output.  */
        !          1521: 
        !          1522: /* Output at beginning of assembler file.  */
        !          1523: 
        !          1524: #define ASM_FILE_START(FILE) \
        !          1525: do { fprintf (FILE, "\t.SPACE $PRIVATE$\n\
        !          1526: \t.SUBSPA $DATA$,QUAD=1,ALIGN=8,ACCESS=31\n\
        !          1527: \t.SUBSPA $BSS$,QUAD=1,ALIGN=8,ACCESS=31,ZERO,SORT=82\n\
        !          1528: \t.SPACE $TEXT$\n\
        !          1529: \t.SUBSPA $LIT$,QUAD=0,ALIGN=8,ACCESS=44\n\
        !          1530: \t.SUBSPA $CODE$,QUAD=0,ALIGN=8,ACCESS=44,CODE_ONLY\n\
        !          1531: \t.IMPORT $global$,DATA\n\
        !          1532: \t.IMPORT $$dyncall,MILLICODE\n");\
        !          1533:      if (profile_flag)\
        !          1534:        fprintf (FILE, "\t.IMPORT _mcount, CODE\n");\
        !          1535:    } while (0)
        !          1536: 
        !          1537: /* Output to assembler file text saying following lines
        !          1538:    may contain character constants, extra white space, comments, etc.  */
        !          1539: 
        !          1540: #define ASM_APP_ON ""
        !          1541: 
        !          1542: /* Output to assembler file text saying following lines
        !          1543:    no longer contain unusual constructs.  */
        !          1544: 
        !          1545: #define ASM_APP_OFF ""
        !          1546: 
        !          1547: /* We don't yet know how to identify GCC to HP-PA machines.  */
        !          1548: #define ASM_IDENTIFY_GCC(FILE) fprintf (FILE, "; gcc_compiled.:\n")
        !          1549: 
        !          1550: /* Output before code.  */
        !          1551: 
        !          1552: /* Supposedly the assembler rejects the command if there is no tab!  */
        !          1553: #define TEXT_SECTION_ASM_OP "\t.SPACE $TEXT$\n\t.SUBSPA $CODE$\n"
        !          1554: 
        !          1555: /* Output before writable data.  */
        !          1556: 
        !          1557: /* Supposedly the assembler rejects the command if there is no tab!  */
        !          1558: #define DATA_SECTION_ASM_OP "\t.SPACE $PRIVATE$\n\t.SUBSPA $DATA$\n"
        !          1559: 
        !          1560: /* Output before uninitialized data.  */
        !          1561: 
        !          1562: #define BSS_SECTION_ASM_OP "\t.SPACE $PRIVATE$\n\t.SUBSPA $BSS$\n"
        !          1563: 
        !          1564: /* Define the .bss section for ASM_OUTPUT_LOCAL to use. */
        !          1565: 
        !          1566: #define EXTRA_SECTIONS in_bss
        !          1567: 
        !          1568: #define EXTRA_SECTION_FUNCTIONS                                                \
        !          1569: void                                                                   \
        !          1570: bss_section ()                                                         \
        !          1571: {                                                                      \
        !          1572:   if (in_section != in_bss)                                            \
        !          1573:     {                                                                  \
        !          1574:       fprintf (asm_out_file, "%s\n", BSS_SECTION_ASM_OP);              \
        !          1575:       in_section = in_bss;                                             \
        !          1576:     }                                                                  \
        !          1577: }
        !          1578: 
        !          1579: 
        !          1580: /* How to refer to registers in assembler output.
        !          1581:    This sequence is indexed by compiler's hard-register-number (see above).  */
        !          1582: 
        !          1583: #define REGISTER_NAMES \
        !          1584: {"0", "%r1", "%r2", "%r3", "%r4", "%r5", "%r6", "%r7",                 \
        !          1585:  "%r8", "%r9", "%r10", "%r11", "%r12", "%r13", "%r14", "%r15",         \
        !          1586:  "%r16", "%r17", "%r18", "%r19", "%r20", "%r21", "%r22", "%r23",       \
        !          1587:  "%r24", "%r25", "%r26", "%r27", "%r28", "%r29", "%r30", "%r31",       \
        !          1588:  "%fr4", "%fr5", "%fr6", "%fr7",       \
        !          1589:  "%fr8", "%fr9", "%fr10", "%fr11", "%fr12", "%fr13", "%fr14", "%fr15", \
        !          1590:  "%fr4", "%fr4R", "%fr5", "%fr5R", "%fr6", "%fr6R", "%fr7", "%fr7R",   \
        !          1591:  "%fr8", "%fr8R", "%fr9", "%fr9R", "%fr10", "%fr10R", "%fr11", "%fr11R",\
        !          1592:  "%fr12", "%fr12R", "%fr13", "%fr13R", "%fr14", "%fr14R", "%fr15", "%fr15R",\
        !          1593:  "%fr16", "%fr16R", "%fr17", "%fr17R", "%fr18", "%fr18R", "%fr19", "%fr19R",\
        !          1594:  "%fr20", "%fr20R", "%fr21", "%fr21R", "%fr22", "%fr22R", "%fr23", "%fr23R",\
        !          1595:  "%fr24", "%fr24R", "%fr25", "%fr25R", "%fr26", "%fr26R", "%fr27", "%fr27R",\
        !          1596:  "%fr28", "%fr28R", "%fr29", "%fr29R", "%fr30", "%fr30R", "%fr31", "%fr31R",\
        !          1597:  "SAR"}
        !          1598: 
        !          1599: /* How to renumber registers for dbx and gdb.  */
        !          1600: 
        !          1601: #define DBX_REGISTER_NUMBER(REGNO) (REGNO)
        !          1602: 
        !          1603: /* This is how to output the definition of a user-level label named NAME,
        !          1604:    such as the label on a static function or variable NAME.  */
        !          1605: 
        !          1606: #define ASM_OUTPUT_LABEL(FILE, NAME)   \
        !          1607:   do { assemble_name (FILE, NAME);     \
        !          1608:        if (TARGET_TRAILING_COLON)      \
        !          1609:         fputc (':', FILE);             \
        !          1610:        fputc ('\n', FILE); } while (0)
        !          1611: 
        !          1612: /* This is how to output a command to make the user-level label named NAME
        !          1613:    defined for reference from other files.  */
        !          1614: 
        !          1615: #define ASM_OUTPUT_EXTERNAL(FILE, DECL, NAME)  \
        !          1616:   do { fputs ("\t.IMPORT ", FILE);                             \
        !          1617:         assemble_name (FILE, NAME);                            \
        !          1618:        if (FUNCTION_NAME_P (NAME))                                     \
        !          1619:         fputs (",CODE\n", FILE);                               \
        !          1620:        else                                                    \
        !          1621:         fputs (",DATA\n", FILE);                               \
        !          1622:      } while (0)
        !          1623: 
        !          1624: /* hpux ld doesn't output the object file name, or anything useful at
        !          1625:    all, to indicate the start of an object file's symbols. This screws
        !          1626:    up gdb, so we'll output this magic cookie at the end of an object
        !          1627:    file with debugging symbols */
        !          1628: 
        !          1629: #define ASM_FILE_END(FILE) \
        !          1630:   do { if (write_symbols == DBX_DEBUG)\
        !          1631:         { fputs (TEXT_SECTION_ASM_OP, FILE);\
        !          1632:           fputs (".stabs \"end_file.\",4,0,0,Ltext_end\nLtext_end:\n",\
        !          1633:                  (FILE));\
        !          1634:         }\
        !          1635:      } while (0)
        !          1636: 
        !          1637: /* The bogus HP assembler requires ALL external references to be 
        !          1638:    "imported", even library calls. They look a bit different, so
        !          1639:    here's this macro. */
        !          1640: 
        !          1641: #define ASM_OUTPUT_EXTERNAL_LIBCALL(FILE, RTL) \
        !          1642:   do { fputs ("\t.IMPORT ", FILE);                                     \
        !          1643:        assemble_name (FILE, XSTR ((RTL), 0));                          \
        !          1644:        fputs (",CODE\n", FILE);                                                \
        !          1645:      } while (0)
        !          1646: 
        !          1647: #define ASM_GLOBALIZE_LABEL(FILE, NAME)                                        \
        !          1648:   do { fputs ("\t.EXPORT ", FILE); assemble_name (FILE, NAME);         \
        !          1649:        if (FUNCTION_NAME_P (NAME))                                     \
        !          1650:         fputs (",CODE\n", FILE);                                       \
        !          1651:        else                                                            \
        !          1652:         fputs (",DATA\n", FILE);} while (0)
        !          1653: 
        !          1654: /* This is how to output a reference to a user-level label named NAME.
        !          1655:    `assemble_name' uses this.  */
        !          1656: 
        !          1657: #define ASM_OUTPUT_LABELREF(FILE,NAME) \
        !          1658:   fprintf ((FILE), "%s", (NAME) + (FUNCTION_NAME_P (NAME) ? 1 : 0))
        !          1659: 
        !          1660: /* This is how to output an internal numbered label where
        !          1661:    PREFIX is the class of label and NUM is the number within the class.  */
        !          1662: 
        !          1663: #define ASM_OUTPUT_INTERNAL_LABEL(FILE,PREFIX,NUM)     \
        !          1664:   {fprintf (FILE, "%s$%04d", PREFIX, NUM);             \
        !          1665:    if (TARGET_TRAILING_COLON)                          \
        !          1666:      fputs (":\n", FILE);                              \
        !          1667:    else                                                        \
        !          1668:      fputs ("\n", FILE);}
        !          1669: 
        !          1670: /* This is how to store into the string LABEL
        !          1671:    the symbol_ref name of an internal numbered label where
        !          1672:    PREFIX is the class of label and NUM is the number within the class.
        !          1673:    This is suitable for output with `assemble_name'.  */
        !          1674: 
        !          1675: #define ASM_GENERATE_INTERNAL_LABEL(LABEL,PREFIX,NUM)  \
        !          1676:   sprintf (LABEL, "*%s$%04d", PREFIX, NUM)
        !          1677: 
        !          1678: /* This is how to output an assembler line defining a `double' constant.  */
        !          1679: 
        !          1680: #define ASM_OUTPUT_DOUBLE(FILE,VALUE)  \
        !          1681:   do { union { double d; int i[2];} __u;       \
        !          1682:     __u.d = (VALUE);                           \
        !          1683:     fprintf (FILE, "\t; .double %.20e\n\t.word %d ; = 0x%x\n\t.word %d ; = 0x%x\n",    \
        !          1684:             __u.d, __u.i[0], __u.i[0], __u.i[1], __u.i[1]);    \
        !          1685:   } while (0)
        !          1686: 
        !          1687: /* This is how to output an assembler line defining a `float' constant.  */
        !          1688: 
        !          1689: #define ASM_OUTPUT_FLOAT(FILE,VALUE)  \
        !          1690:   do { union { float f; int i;} __u;           \
        !          1691:     __u.f = (VALUE);                           \
        !          1692:     fprintf (FILE, "\t; .float %.12e\n\t.word %d ; = 0x%x\n", __u.f, __u.i, __u.i); \
        !          1693:   } while (0)
        !          1694: 
        !          1695: /* This is how to output an assembler line defining an `int' constant.  */
        !          1696: 
        !          1697: #define ASM_OUTPUT_INT(FILE,VALUE)  \
        !          1698: { fprintf (FILE, "\t.word ");                  \
        !          1699:   if (TARGET_SHARED_LIBS                       \
        !          1700:       && function_label_operand (VALUE, VOIDmode))\
        !          1701:     fprintf (FILE, "P%%");                     \
        !          1702:   output_addr_const (FILE, (VALUE));           \
        !          1703:   fprintf (FILE, "\n");}
        !          1704: 
        !          1705: /* Likewise for `short' and `char' constants.  */
        !          1706: 
        !          1707: #define ASM_OUTPUT_SHORT(FILE,VALUE)  \
        !          1708: ( fprintf (FILE, "\t.half "),                  \
        !          1709:   output_addr_const (FILE, (VALUE)),           \
        !          1710:   fprintf (FILE, "\n"))
        !          1711: 
        !          1712: #define ASM_OUTPUT_CHAR(FILE,VALUE)  \
        !          1713: ( fprintf (FILE, "\t.byte "),                  \
        !          1714:   output_addr_const (FILE, (VALUE)),           \
        !          1715:   fprintf (FILE, "\n"))
        !          1716: 
        !          1717: /* This is how to output an assembler line for a numeric constant byte.  */
        !          1718: 
        !          1719: #define ASM_OUTPUT_BYTE(FILE,VALUE)  \
        !          1720:   fprintf (FILE, "\t.byte 0x%x\n", (VALUE))
        !          1721: 
        !          1722: #define ASM_OUTPUT_ASCII(FILE, P, SIZE)  \
        !          1723:   output_ascii ((FILE), (P), (SIZE))
        !          1724: 
        !          1725: #define ASM_OUTPUT_REG_PUSH(FILE,REGNO)
        !          1726: #define ASM_OUTPUT_REG_POP(FILE,REGNO) 
        !          1727: /* This is how to output an element of a case-vector that is absolute.
        !          1728:    Note that this method makes filling these branch delay slots
        !          1729:    impossible.  */
        !          1730: 
        !          1731: #define ASM_OUTPUT_ADDR_VEC_ELT(FILE, VALUE)  \
        !          1732:   fprintf (FILE, "\tb L$%04d\n\tnop\n", VALUE)
        !          1733: 
        !          1734: /* Jump tables are executable code and live in the TEXT section on the PA.  */
        !          1735: #define JUMP_TABLES_IN_TEXT_SECTION
        !          1736: 
        !          1737: /* This is how to output an element of a case-vector that is relative.
        !          1738:    (The HP-PA does not use such vectors,
        !          1739:    but we must define this macro anyway.)  */
        !          1740: 
        !          1741: #define ASM_OUTPUT_ADDR_DIFF_ELT(FILE, VALUE, REL)  \
        !          1742:   fprintf (FILE, "\tword L%d-L%d\n", VALUE, REL)
        !          1743: 
        !          1744: /* This is how to output an assembler line
        !          1745:    that says to advance the location counter
        !          1746:    to a multiple of 2**LOG bytes.  */
        !          1747: 
        !          1748: #define ASM_OUTPUT_ALIGN(FILE,LOG)     \
        !          1749:     fprintf (FILE, "\t.align %d\n", (1<<(LOG)))
        !          1750: 
        !          1751: #define ASM_OUTPUT_SKIP(FILE,SIZE)  \
        !          1752:   fprintf (FILE, "\t.blockz %d\n", (SIZE))
        !          1753: 
        !          1754: /* This says how to output an assembler line
        !          1755:    to define a global common symbol.  */
        !          1756: 
        !          1757: /* Supposedly the assembler rejects the command if there is no tab!  */
        !          1758: 
        !          1759: 
        !          1760: #define ASM_OUTPUT_COMMON(FILE, NAME, SIZE, ROUNDED)  \
        !          1761: { bss_section ();                                      \
        !          1762:   assemble_name ((FILE), (NAME));                      \
        !          1763:   if (TARGET_TRAILING_COLON)                           \
        !          1764:     fputc (':', (FILE));                               \
        !          1765:   fputs ("\t.comm ", (FILE));                          \
        !          1766:   fprintf ((FILE), "%d\n", (ROUNDED));}
        !          1767: 
        !          1768: /* This says how to output an assembler line
        !          1769:    to define a local common symbol.  */
        !          1770: 
        !          1771: #define ASM_OUTPUT_LOCAL(FILE, NAME, SIZE, ROUNDED)  \
        !          1772: { bss_section ();                                              \
        !          1773:   fprintf ((FILE), "\t.align %d\n", (SIZE) <= 4 ? 4 : 8);      \
        !          1774:   assemble_name ((FILE), (NAME));                              \
        !          1775:   if (TARGET_TRAILING_COLON)                           \
        !          1776:     fputc (':', (FILE));                               \
        !          1777:   fprintf ((FILE), "\n\t.block %d\n", (ROUNDED));}
        !          1778: 
        !          1779: /* Store in OUTPUT a string (made with alloca) containing
        !          1780:    an assembler-name for a local static variable named NAME.
        !          1781:    LABELNO is an integer which is different for each call.  */
        !          1782: 
        !          1783: #define ASM_FORMAT_PRIVATE_NAME(OUTPUT, NAME, LABELNO) \
        !          1784: ( (OUTPUT) = (char *) alloca (strlen ((NAME)) + 12),   \
        !          1785:   sprintf ((OUTPUT), "%s___%d", (NAME), (LABELNO)))
        !          1786: 
        !          1787: /* Define the parentheses used to group arithmetic operations
        !          1788:    in assembler code.  */
        !          1789: 
        !          1790: #define ASM_OPEN_PAREN "("
        !          1791: #define ASM_CLOSE_PAREN ")"
        !          1792: 
        !          1793: /* Define results of standard character escape sequences.  */
        !          1794: #define TARGET_BELL 007
        !          1795: #define TARGET_BS 010
        !          1796: #define TARGET_TAB 011
        !          1797: #define TARGET_NEWLINE 012
        !          1798: #define TARGET_VT 013
        !          1799: #define TARGET_FF 014
        !          1800: #define TARGET_CR 015
        !          1801: 
        !          1802: #define PRINT_OPERAND_PUNCT_VALID_P(CHAR) \
        !          1803:   ((CHAR) == '@' || (CHAR) == '#' || (CHAR) == '*' || (CHAR) == '^')
        !          1804: 
        !          1805: /* Print operand X (an rtx) in assembler syntax to file FILE.
        !          1806:    CODE is a letter or dot (`z' in `%z0') or 0 if no letter was specified.
        !          1807:    For `%' followed by punctuation, CODE is the punctuation and X is null.
        !          1808: 
        !          1809:    On the HP-PA, the CODE can be `r', meaning this is a register-only operand
        !          1810:    and an immediate zero should be represented as `r0'.
        !          1811: 
        !          1812:    Several % codes are defined:
        !          1813:    O an operation
        !          1814:    C compare conditions
        !          1815:    N extract conditions
        !          1816:    M modifier to handle preincrement addressing for memory refs.
        !          1817:    F modifier to handle preincrement addressing for fp memory refs */
        !          1818: 
        !          1819: #define PRINT_OPERAND(FILE, X, CODE) print_operand (FILE, X, CODE)
        !          1820: 
        !          1821: 
        !          1822: /* Print a memory address as an operand to reference that memory location.  */
        !          1823: 
        !          1824: #define PRINT_OPERAND_ADDRESS(FILE, ADDR)  \
        !          1825: { register rtx addr = ADDR;                                            \
        !          1826:   register rtx base;                                                   \
        !          1827:   int offset;                                                          \
        !          1828:   switch (GET_CODE (addr))                                             \
        !          1829:     {                                                                  \
        !          1830:     case REG:                                                          \
        !          1831:       fprintf (FILE, "0(0,%s)", reg_names [REGNO (addr)]);             \
        !          1832:       break;                                                           \
        !          1833:     case PLUS:                                                         \
        !          1834:       if (GET_CODE (XEXP (addr, 0)) == CONST_INT)                      \
        !          1835:        offset = INTVAL (XEXP (addr, 0)), base = XEXP (addr, 1);        \
        !          1836:       else if (GET_CODE (XEXP (addr, 1)) == CONST_INT)                 \
        !          1837:        offset = INTVAL (XEXP (addr, 1)), base = XEXP (addr, 0);        \
        !          1838:       else                                                             \
        !          1839:        abort ();                                                       \
        !          1840:       fprintf (FILE, "%d(0,%s)", offset, reg_names [REGNO (base)]);    \
        !          1841:       break;                                                           \
        !          1842:     case LO_SUM:                                                       \
        !          1843:       fputs ("R'", FILE);                                              \
        !          1844:       output_global_address (FILE, XEXP (addr, 1));                    \
        !          1845:       fputs ("(", FILE);                                               \
        !          1846:       output_operand (XEXP (addr, 0), 0);                              \
        !          1847:       fputs (")", FILE);                                               \
        !          1848:       break;                                                           \
        !          1849:     case CONST_INT:                                                    \
        !          1850:       fprintf (FILE, "%d(0,0)", INTVAL (addr));                                \
        !          1851:       break;                                                           \
        !          1852:     default:                                                           \
        !          1853:       output_addr_const (FILE, addr);                                  \
        !          1854:     }}
        !          1855: 
        !          1856: 
        !          1857: /* Define functions in pa.c and used in insn-output.c.  */
        !          1858: 
        !          1859: extern char *output_and ();
        !          1860: extern char *output_ior ();
        !          1861: extern char *output_move_double ();
        !          1862: extern char *output_fp_move_double ();
        !          1863: extern char *output_block_move ();
        !          1864: extern char *output_scc_insn ();
        !          1865: extern char *output_cbranch ();
        !          1866: extern char *output_bb ();
        !          1867: extern char *output_return ();
        !          1868: extern char *output_floatsisf2 ();
        !          1869: extern char *output_floatsidf2 ();
        !          1870: extern char *output_mul_insn ();
        !          1871: extern char *output_div_insn ();
        !          1872: extern char *output_mod_insn ();
        !          1873: extern char *singlemove_string ();
        !          1874: extern void output_arg_descriptor ();
        !          1875: extern void output_global_address ();
        !          1876: extern struct rtx_def *legitimize_pic_address ();
        !          1877: extern struct rtx_def *gen_cmp_fp ();
        !          1878: extern void hppa_encode_label ();
        !          1879: 
        !          1880: extern struct rtx_def *hppa_save_pic_table_rtx;

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