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Annotation of GNUtools/cc/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: #ifdef NeXT_ASM
        !            34: #define TARGET_VERSION fprintf (stderr, " (hppa, NeXT syntax)");
        !            35: #else
        !            36: #define TARGET_VERSION fprintf (stderr, " (hppa, HPUX syntax)");
        !            37: #endif
        !            38: 
        !            39: /* Run-time compilation parameters selecting different hardware subsets.  */
        !            40: 
        !            41: extern int target_flags;
        !            42: 
        !            43: /* compile code for HP-PA 1.1 ("Snake") */
        !            44: 
        !            45: #define TARGET_SNAKE (target_flags & 1)
        !            46: 
        !            47: /* Disable all FP registers (they all become fixed).  This may be necessary
        !            48:    for compiling kernels which perform lazy context switching of FP regs.
        !            49:    Note if you use this option and try to perform floating point operations 
        !            50:    the compiler will abort!  */
        !            51: 
        !            52: #define TARGET_DISABLE_FPREGS (target_flags & 2)
        !            53: 
        !            54: /* Allow unconditional jumps in the delay slots of call instructions.  */
        !            55: #define TARGET_JUMP_IN_DELAY (target_flags & 8)
        !            56: 
        !            57: /* Force all function calls to indirect addressing via a register.  This
        !            58:    avoids lossage when the function is very far away from the current PC.
        !            59: 
        !            60:    ??? What about simple jumps, they can suffer from the same problem.  
        !            61:    Would require significant surgery in pa.md.  */
        !            62: 
        !            63: #define TARGET_LONG_CALLS (target_flags & 16)
        !            64: 
        !            65: /* Disable indexed addressing modes.  */
        !            66: 
        !            67: #define TARGET_DISABLE_INDEXING (target_flags & 32)
        !            68: 
        !            69: /* Emit directives only understood by GAS.  This allows parameter
        !            70:    relocations to work for static functions.  There is no way
        !            71:    to make them work the HP assembler at this time. 
        !            72: 
        !            73:    Also forces a colon to be tacked onto the end of local and
        !            74:    global labes.  */
        !            75: 
        !            76: #define TARGET_GAS (target_flags & 128)
        !            77: 
        !            78: /* For all calls to symbols, emit a local stub that does a far
        !            79:    call and then branch locally (using the pseudo instruction jbsr) 
        !            80:    to that stub.  The assembler will then generate a local branch-and-
        !            81:    link instruction in place if the jbsr instruction, and add a
        !            82:    relocation entry to the object file so that the link editor may
        !            83:    relocate where to jump without actually enlarging the object file. */
        !            84: 
        !            85: #define TARGET_STUB_CALLS (target_flags & 256)
        !            86: 
        !            87: /* Macro to define tables used to set the flags.
        !            88:    This is a list in braces of pairs in braces,
        !            89:    each pair being { "NAME", VALUE }
        !            90:    where VALUE is the bits to set or minus the bits to clear.
        !            91:    An empty string NAME is used to identify the default VALUE.  */
        !            92: 
        !            93: #define TARGET_SWITCHES \
        !            94:   {{"snake", 1},               \
        !            95:    {"nosnake", -1},            \
        !            96:    {"pa-risc-1-0", -1},                \
        !            97:    {"pa-risc-1-1", 1},         \
        !            98:    {"disable-fpregs", 2},      \
        !            99:    {"no-disable-fpregs", 2},   \
        !           100:    {"jump-in-delay", 8},       \
        !           101:    {"no-jump-in-delay", -8},   \
        !           102:    {"long-calls", 16},         \
        !           103:    {"no-long-calls", -16},     \
        !           104:    {"disable-indexing", 32},   \
        !           105:    {"no-disable-indexing", -32},\
        !           106:    {"gas", 128},               \
        !           107:    {"no-gas", -128},           \
        !           108:    {"stub-calls", 256},         \
        !           109:    {"no-stub-calls", -256},     \
        !           110:    { "", TARGET_DEFAULT}}
        !           111: 
        !           112: #ifndef TARGET_DEFAULT
        !           113: #define TARGET_DEFAULT 128             /* TARGET_GAS + TARGET_JUMP_IN_DELAY */
        !           114: #endif
        !           115: 
        !           116: #define DBX_DEBUGGING_INFO
        !           117: #define DEFAULT_GDB_EXTENSIONS 1
        !           118: 
        !           119: /* Only lables should ever begin in colunm zero.  */
        !           120: #define ASM_STABS_OP "\t.stabs"
        !           121: #define ASM_STABN_OP "\t.stabn"
        !           122: 
        !           123: #if (TARGET_DEFAULT & 1) == 0
        !           124: #define CPP_SPEC "%{msnake:-D__hp9000s700 -D_PA_RISC1_1}\
        !           125:  %{mpa-risc-1-1:-D__hp9000s700 -D_PA_RISC1_1}"
        !           126: #else
        !           127: #define CPP_SPEC "%{!mpa-risc-1-0:%{!mnosnake:-D__hp9000s700 -D_PA_RISC1_1}}"
        !           128: #endif
        !           129: 
        !           130: /* Defines for a K&R CC */
        !           131: 
        !           132: #define CC1_SPEC "%{pg:} %{p:}"
        !           133:   
        !           134: #define LINK_SPEC "-u main"
        !           135: 
        !           136: /* Allow $ in identifiers.  */
        !           137: #define DOLLARS_IN_IDENTIFIERS 2
        !           138: 
        !           139: /* Make gcc agree with <machine/ansi.h> */
        !           140: 
        !           141: #define SIZE_TYPE "unsigned int"
        !           142: #define PTRDIFF_TYPE "int"
        !           143: #define WCHAR_TYPE "short unsigned int"
        !           144: #define WCHAR_TYPE_SIZE 16
        !           145: 
        !           146: /* Sometimes certain combinations of command options do not make sense
        !           147:    on a particular target machine.  You can define a macro
        !           148:    `OVERRIDE_OPTIONS' to take account of this.  This macro, if
        !           149:    defined, is executed once just after all the command options have
        !           150:    been parsed.
        !           151: 
        !           152:    On the PA, it is used to explicitly warn the user that -fpic and -fPIC
        !           153:    do not work.  */
        !           154: 
        !           155: #define OVERRIDE_OPTIONS \
        !           156: {                                                              \
        !           157:   if (flag_pic != 0)                                           \
        !           158:     warning ("-fpic and -fPIC are not supported on the PA.");  \
        !           159: }
        !           160: 
        !           161: /* Omit frame pointer at high optimization levels.  */
        !           162:   
        !           163: #define OPTIMIZATION_OPTIONS(OPTIMIZE) \
        !           164: {                                                              \
        !           165:   if (OPTIMIZE >= 2)                                           \
        !           166:     flag_omit_frame_pointer = 1;                               \
        !           167: }
        !           168: 
        !           169: /* Names to predefine in the preprocessor for this target machine.  */
        !           170: 
        !           171: #define CPP_PREDEFINES "-Dhppa -Dhp9000s800 -D__hp9000s800 -Dhp9k8 -Dunix -D_HPUX_SOURCE -Dhp9000 -Dhp800 -Dspectrum -DREVARGV -Asystem(unix) -Asystem(bsd) -Acpu(hppa) -Amachine(hppa)"
        !           172: 
        !           173: /* target machine storage layout */
        !           174: 
        !           175: /* Define this if most significant bit is lowest numbered
        !           176:    in instructions that operate on numbered bit-fields.  */
        !           177: #define BITS_BIG_ENDIAN 1
        !           178: 
        !           179: /* Define this if most significant byte of a word is the lowest numbered.  */
        !           180: /* That is true on the HP-PA.  */
        !           181: #define BYTES_BIG_ENDIAN 1
        !           182: 
        !           183: /* Define this if most significant word of a multiword number is lowest
        !           184:    numbered.  */
        !           185: /* For the HP-PA we can decide arbitrarily
        !           186:    since there are no machine instructions for them.  */
        !           187: #define WORDS_BIG_ENDIAN 1
        !           188: 
        !           189: /* number of bits in an addressable storage unit */
        !           190: #define BITS_PER_UNIT 8
        !           191: 
        !           192: /* Width in bits of a "word", which is the contents of a machine register.
        !           193:    Note that this is not necessarily the width of data type `int';
        !           194:    if using 16-bit ints on a 68000, this would still be 32.
        !           195:    But on a machine with 16-bit registers, this would be 16.  */
        !           196: #define BITS_PER_WORD 32
        !           197: 
        !           198: /* Width of a word, in units (bytes).  */
        !           199: #define UNITS_PER_WORD 4
        !           200: 
        !           201: /* Width in bits of a pointer.
        !           202:    See also the macro `Pmode' defined below.  */
        !           203: #define POINTER_SIZE 32
        !           204: 
        !           205: /* Allocation boundary (in *bits*) for storing arguments in argument list.  */
        !           206: #define PARM_BOUNDARY 32
        !           207: 
        !           208: /* Largest alignment required for any stack parameter, in bits.
        !           209:    Don't define this if it is equal to PARM_BOUNDARY */
        !           210: #define MAX_PARM_BOUNDARY 64
        !           211: 
        !           212: /* Boundary (in *bits*) on which stack pointer should be aligned.  */
        !           213: #define STACK_BOUNDARY 512
        !           214: 
        !           215: /* Allocation boundary (in *bits*) for the code of a function.  */
        !           216: #define FUNCTION_BOUNDARY 32
        !           217: 
        !           218: /* Alignment of field after `int : 0' in a structure.  */
        !           219: #define EMPTY_FIELD_BOUNDARY 32
        !           220: 
        !           221: /* Every structure's size must be a multiple of this.  */
        !           222: #define STRUCTURE_SIZE_BOUNDARY 8
        !           223: 
        !           224: /* A bitfield declared as `int' forces `int' alignment for the struct.  */
        !           225: #define PCC_BITFIELD_TYPE_MATTERS 1
        !           226: 
        !           227: /* No data type wants to be aligned rounder than this.  */
        !           228: #define BIGGEST_ALIGNMENT 64
        !           229: 
        !           230: /* Get around hp-ux assembler bug, and make strcpy of constants fast. */
        !           231: #define CONSTANT_ALIGNMENT(CODE, TYPEALIGN) \
        !           232:   ((TYPEALIGN) < 32 ? 32 : (TYPEALIGN))
        !           233: 
        !           234: /* Make arrays of chars word-aligned for the same reasons.  */
        !           235: #define DATA_ALIGNMENT(TYPE, ALIGN)            \
        !           236:   (TREE_CODE (TYPE) == ARRAY_TYPE              \
        !           237:    && TYPE_MODE (TREE_TYPE (TYPE)) == QImode   \
        !           238:    && (ALIGN) < BITS_PER_WORD ? BITS_PER_WORD : (ALIGN))
        !           239: 
        !           240: 
        !           241: /* Set this nonzero if move instructions will actually fail to work
        !           242:    when given unaligned data.  */
        !           243: #define STRICT_ALIGNMENT 1
        !           244: 
        !           245: /* Generate calls to memcpy, memcmp and memset.  */
        !           246: #define TARGET_MEM_FUNCTIONS
        !           247: 
        !           248: /* Standard register usage.  */
        !           249: 
        !           250: /* Number of actual hardware registers.
        !           251:    The hardware registers are assigned numbers for the compiler
        !           252:    from 0 to just below FIRST_PSEUDO_REGISTER.
        !           253:    All registers that the compiler knows about must be given numbers,
        !           254:    even those that are not normally considered general registers.
        !           255: 
        !           256:    HP-PA 1.0 has 32 fullword registers and 16 floating point
        !           257:    registers. The floating point registers hold either word or double
        !           258:    word values.
        !           259:    
        !           260:    16 additional registers are reserved.
        !           261:    
        !           262:    HP-PA 1.1 has 32 fullword registers and 32 floating point
        !           263:    registers. However, the floating point registers behave
        !           264:    differently: the left and right halves of registers are addressable
        !           265:    as 32 bit registers. So, we will set things up like the 68k which
        !           266:    has different fp units: define separate register sets for the 1.0
        !           267:    and 1.1 fp units. */
        !           268: 
        !           269: #define FIRST_PSEUDO_REGISTER 101  /* 32 + 12 1.0 regs + 56 1.1 regs + */
        !           270:                                   /* 1 shift reg */
        !           271: 
        !           272: /* 1 for registers that have pervasive standard uses
        !           273:    and are not available for the register allocator.
        !           274: 
        !           275:    On the HP-PA, these are:
        !           276:    Reg 0       = 0 (hardware). However, 0 is used for condition code,
        !           277:                   so is not fixed.
        !           278:    Reg 1       = ADDIL target/Temporary (hardware).
        !           279:    Reg 2       = Return Pointer
        !           280:    Reg 3       = Preserved Register (Gnu).  Frame Pointer (> 8k frames HP.)
        !           281:    Reg 4       = Frame Pointer (Gnu)
        !           282:    Reg 5-18    = Preserved Registers
        !           283:    Reg 19      = Linkage Table Register in HPUX 8.0 shared library scheme.
        !           284:    Reg 20-22   = Temporary Registers
        !           285:    Reg 23-26   = Temporary/Parameter Registers
        !           286:    Reg 27      = Global Data Pointer (hp)
        !           287:    Reg 28      = Temporary/???/Return Value register
        !           288:    Reg 29      = Temporary/Static Chain/Return Value register
        !           289:    Reg 30      = stack pointer
        !           290:    Reg 31      = Temporary/Millicode Return Pointer (hp)
        !           291: 
        !           292:    Freg 0-3    = Status Registers       -- Not known to the compiler.
        !           293:    Freg 4-7    = Arguments/Return Value
        !           294:    Freg 8-11   = Temporary Registers
        !           295:    Freg 12-15  = Preserved Registers
        !           296: 
        !           297:    Freg 16-31  = Reserved
        !           298: 
        !           299:    On the Snake, fp regs are
        !           300: 
        !           301:    Freg 0-3    = Status Registers      -- Not known to the compiler.
        !           302:    Freg 4L-7R  = Arguments/Return Value
        !           303:    Freg 8L-11R = Temporary Registers
        !           304:    Freg 12L-21R        = Preserved Registers
        !           305:    Freg 22L-31R = Temporary Registers
        !           306:    
        !           307: 
        !           308: */
        !           309: 
        !           310: #define FIXED_REGISTERS  \
        !           311:  {0, 0, 0, 0, 0, 0, 0, 0, \
        !           312:   0, 0, 0, 0, 0, 0, 0, 0, \
        !           313:   0, 0, 0, 0, 0, 0, 0, 0, \
        !           314:   0, 0, 0, 1, 0, 0, 1, 0, \
        !           315:   /* 1.0 fp registers */ \
        !           316:   0, 0, 0, 0, \
        !           317:   0, 0, 0, 0, 0, 0, 0, 0, \
        !           318:   /* 1.1 fp registers */ \
        !           319:   0, 0, 0, 0, 0, 0, 0, 0, \
        !           320:   0, 0, 0, 0, 0, 0, 0, 0, \
        !           321:   0, 0, 0, 0, 0, 0, 0, 0, \
        !           322:   0, 0, 0, 0, 0, 0, 0, 0, \
        !           323:   0, 0, 0, 0, 0, 0, 0, 0, \
        !           324:   0, 0, 0, 0, 0, 0, 0, 0, \
        !           325:   0, 0, 0, 0, 0, 0, 0, 0, \
        !           326:   0}
        !           327: 
        !           328: /* 1 for registers not available across function calls.
        !           329:    These must include the FIXED_REGISTERS and also any
        !           330:    registers that can be used without being saved.
        !           331:    The latter must include the registers where values are returned
        !           332:    and the register where structure-value addresses are passed.
        !           333:    Aside from that, you can include as many other registers as you like.  */
        !           334: #define CALL_USED_REGISTERS  \
        !           335:  {1, 1, 1, 0, 0, 0, 0, 0, \
        !           336:   0, 0, 0, 0, 0, 0, 0, 0, \
        !           337:   0, 0, 0, 1, 1, 1, 1, 1, \
        !           338:   1, 1, 1, 1, 1, 1, 1, 1, \
        !           339:   /* 1.0 fp registers */ \
        !           340:   1, 1, 1, 1, \
        !           341:   1, 1, 1, 1, 0, 0, 0, 0, \
        !           342:   /* 1.1 fp registers */ \
        !           343:   1, 1, 1, 1, 1, 1, 1, 1, \
        !           344:   1, 1, 1, 1, 1, 1, 1, 1, \
        !           345:   0, 0, 0, 0, 0, 0, 0, 0, \
        !           346:   0, 0, 0, 0, 0, 0, 0, 0, \
        !           347:   0, 0, 0, 0, 1, 1, 1, 1, \
        !           348:   1, 1, 1, 1, 1, 1, 1, 1, \
        !           349:   1, 1, 1, 1, 1, 1, 1, 1, \
        !           350:   1}    
        !           351: 
        !           352: /* Make sure everything's fine if we *don't* have a given processor.
        !           353:    This assumes that putting a register in fixed_regs will keep the
        !           354:    compiler's mitts completely off it.  We don't bother to zero it out
        !           355:    of register classes.   */
        !           356: 
        !           357: #define CONDITIONAL_REGISTER_USAGE \
        !           358: {                                              \
        !           359:   int i;                                       \
        !           360:   HARD_REG_SET x;                              \
        !           361:   if (!TARGET_SNAKE)                           \
        !           362:     {                                          \
        !           363:       COPY_HARD_REG_SET (x, reg_class_contents[(int)SNAKE_FP_REGS]);\
        !           364:       for (i = 0; i < FIRST_PSEUDO_REGISTER; i++ ) \
        !           365:        if (TEST_HARD_REG_BIT (x, i))           \
        !           366:        fixed_regs[i] = call_used_regs[i] = 1;  \
        !           367:     }                                          \
        !           368:   else if (TARGET_DISABLE_FPREGS)              \
        !           369:     {                                          \
        !           370:       COPY_HARD_REG_SET (x, reg_class_contents[(int)FP_REGS]);\
        !           371:       for (i = 0; i < FIRST_PSEUDO_REGISTER; i++ ) \
        !           372:        if (TEST_HARD_REG_BIT (x, i))           \
        !           373:        fixed_regs[i] = call_used_regs[i] = 1;  \
        !           374:       COPY_HARD_REG_SET (x, reg_class_contents[(int)SNAKE_FP_REGS]);\
        !           375:       for (i = 0; i < FIRST_PSEUDO_REGISTER; i++ ) \
        !           376:        if (TEST_HARD_REG_BIT (x, i))           \
        !           377:        fixed_regs[i] = call_used_regs[i] = 1;  \
        !           378:     }                                          \
        !           379:   else                                         \
        !           380:     {                                          \
        !           381:       COPY_HARD_REG_SET (x, reg_class_contents[(int)FP_REGS]); \
        !           382:       for (i = 0; i < FIRST_PSEUDO_REGISTER; i++ ) \
        !           383:        if (TEST_HARD_REG_BIT (x, i))           \
        !           384:        fixed_regs[i] = call_used_regs[i] = 1;  \
        !           385:     }                                          \
        !           386:   if (flag_pic)                                        \
        !           387:     fixed_regs[PIC_OFFSET_TABLE_REGNUM] = 1;   \
        !           388: }
        !           389: 
        !           390: /* Allocated the call used registers first.  This should minimize
        !           391:    the number of registers that need to be saved (as call used
        !           392:    registers will generally not be allocated across a call).
        !           393: 
        !           394:    Experimentation has shown slightly better results by allocating
        !           395:    FP registers first.  */
        !           396: 
        !           397: #define REG_ALLOC_ORDER \
        !           398:   /* 1.0 caller-saved fp regs.  */     \
        !           399:  {36, 37, 38, 39, 32, 33, 34, 35,      \
        !           400:   /* 1.1 caller-saved fp regs.  */     \
        !           401:   52, 53, 54, 55, 56, 57, 58, 59,      \
        !           402:   80, 81, 82, 83, 84, 85, 86, 87,      \
        !           403:   88, 89, 90, 91, 92, 93, 94, 95,      \
        !           404:   96, 97, 98, 99,                      \
        !           405:   44, 45, 46, 47, 48, 49, 50, 51,      \
        !           406:   /* caller-saved general regs.  */    \
        !           407:   19, 20, 21, 22, 23, 24, 25, 26,      \
        !           408:   27, 28, 29, 31,  2,                  \
        !           409:   /* 1.0 callee-saved fp regs.  */     \
        !           410:   40, 41, 42, 43,                      \
        !           411:   /* 1.1 callee-saved fp regs.  */     \
        !           412:   60, 61, 62, 63, 64, 65, 66, 67,      \
        !           413:   68, 69, 70, 71, 72, 73, 74, 75,      \
        !           414:   76, 77, 78, 79,                      \
        !           415:   /* callee-saved general regs.  */    \
        !           416:    3,  4,  5,  6,  7,  8,  9, 10,      \
        !           417:   11, 12, 13, 14, 15, 16, 17, 18,      \
        !           418:   /* special registers.  */            \
        !           419:    1, 30,  0, 100}
        !           420: 
        !           421: 
        !           422: /* Return number of consecutive hard regs needed starting at reg REGNO
        !           423:    to hold something of mode MODE.
        !           424:    This is ordinarily the length in words of a value of mode MODE
        !           425:    but can be less for certain modes in special long registers.
        !           426: 
        !           427:    On the HP-PA, ordinary registers hold 32 bits worth;
        !           428:    The floating point registers are 64 bits wide. Snake fp regs are 32
        !           429:    bits wide */
        !           430: #define HARD_REGNO_NREGS(REGNO, MODE)   \
        !           431:   (((REGNO) < 32 || (REGNO) >= 44)     \
        !           432:    ? ((GET_MODE_SIZE (MODE) + UNITS_PER_WORD - 1) / UNITS_PER_WORD) : 1)
        !           433: 
        !           434: /* Value is 1 if hard register REGNO can hold a value of machine-mode MODE.
        !           435:    On the HP-PA, the cpu registers can hold any mode.  We
        !           436:    force this to be an even register is it cannot hold the full mode.  */
        !           437: #define HARD_REGNO_MODE_OK(REGNO, MODE) \
        !           438:   ((REGNO) == 0 ? (MODE) == CCmode || (MODE) == CCFPmode               \
        !           439:    : (REGNO) < 32 ? ((GET_MODE_SIZE (MODE) <= 4) ? 1 : ((REGNO) & 1) == 0)\
        !           440:    : (REGNO) < 44 ? (GET_MODE_SIZE (MODE) <= 4                         \
        !           441:                     || (GET_MODE_SIZE (MODE) > 4                       \
        !           442:                         && GET_MODE_CLASS (MODE) == MODE_FLOAT))       \
        !           443:    : (GET_MODE_SIZE (MODE) > 4 ? ((REGNO) & 1) == 0                    \
        !           444:       : 1))
        !           445: 
        !           446: /* Value is 1 if it is a good idea to tie two pseudo registers
        !           447:    when one has mode MODE1 and one has mode MODE2.
        !           448:    If HARD_REGNO_MODE_OK could produce different values for MODE1 and MODE2,
        !           449:    for any hard reg, then this must be 0 for correct output.  */
        !           450: #define MODES_TIEABLE_P(MODE1, MODE2) \
        !           451:   (GET_MODE_CLASS (MODE1) == GET_MODE_CLASS (MODE2))
        !           452: 
        !           453: /* Specify the registers used for certain standard purposes.
        !           454:    The values of these macros are register numbers.  */
        !           455: 
        !           456: /* The HP-PA pc isn't overloaded on a register that the compiler knows about.  */
        !           457: /* #define PC_REGNUM  */
        !           458: 
        !           459: /* Register to use for pushing function arguments.  */
        !           460: #define STACK_POINTER_REGNUM 30
        !           461: 
        !           462: /* Base register for access to local variables of the function.  */
        !           463: #define FRAME_POINTER_REGNUM 4
        !           464: 
        !           465: /* Value should be nonzero if functions must have frame pointers. */
        !           466: #define FRAME_POINTER_REQUIRED (current_function_calls_alloca)
        !           467:   
        !           468: 
        !           469: /* C statement to store the difference between the frame pointer
        !           470:    and the stack pointer values immediately after the function prologue.
        !           471: 
        !           472:    Note, we always pretend that this is a leaf function because if
        !           473:    it's not, there's no point in trying to eliminate the
        !           474:    frame pointer.  If it is a leaf function, we guessed right!  */
        !           475: #define INITIAL_FRAME_POINTER_OFFSET(VAR) \
        !           476:   do {(VAR) = - compute_frame_size (get_frame_size (), 0);} while (0)
        !           477: 
        !           478: /* Base register for access to arguments of the function.  */
        !           479: #define ARG_POINTER_REGNUM 4
        !           480: 
        !           481: /* Register in which static-chain is passed to a function.  */
        !           482: /* ??? */
        !           483: #define STATIC_CHAIN_REGNUM 29
        !           484: 
        !           485: /* Register which holds offset table for position-independent
        !           486:    data references.  */
        !           487: 
        !           488: #define PIC_OFFSET_TABLE_REGNUM 19
        !           489: 
        !           490: #define INITIALIZE_PIC initialize_pic ()
        !           491: #define FINALIZE_PIC finalize_pic ()
        !           492: 
        !           493: /* SOM ABI says that objects larger than 64 bits are returned in memory.  */
        !           494: #define RETURN_IN_MEMORY(TYPE) \
        !           495:   (TYPE_MODE (TYPE) == BLKmode || int_size_in_bytes (TYPE) > 8)
        !           496: 
        !           497: /* Register in which address to store a structure value
        !           498:    is passed to a function.  */
        !           499: #define STRUCT_VALUE_REGNUM 28
        !           500: 
        !           501: /* Define the classes of registers for register constraints in the
        !           502:    machine description.  Also define ranges of constants.
        !           503: 
        !           504:    One of the classes must always be named ALL_REGS and include all hard regs.
        !           505:    If there is more than one class, another class must be named NO_REGS
        !           506:    and contain no registers.
        !           507: 
        !           508:    The name GENERAL_REGS must be the name of a class (or an alias for
        !           509:    another name such as ALL_REGS).  This is the class of registers
        !           510:    that is allowed by "g" or "r" in a register constraint.
        !           511:    Also, registers outside this class are allocated only when
        !           512:    instructions express preferences for them.
        !           513: 
        !           514:    The classes must be numbered in nondecreasing order; that is,
        !           515:    a larger-numbered class must never be contained completely
        !           516:    in a smaller-numbered class.
        !           517: 
        !           518:    For any two classes, it is very desirable that there be another
        !           519:    class that represents their union.  */
        !           520: 
        !           521:   /* The HP-PA has four kinds of registers: general regs, 1.0 fp regs,
        !           522:      1.1 fp regs, and the high 1.1 fp regs, to which the operands of
        !           523:      fmpyadd and fmpysub are restricted.
        !           524: 
        !           525:      FP_OR_SNAKE_FP_REGS is for reload_{in,out}di only and isn't used
        !           526:      anywhere else.  */
        !           527: 
        !           528: enum reg_class { NO_REGS, R1_REGS, GENERAL_REGS, FP_REGS, GENERAL_OR_FP_REGS,
        !           529:   HI_SNAKE_FP_REGS, SNAKE_FP_REGS, GENERAL_OR_SNAKE_FP_REGS,
        !           530:   FP_OR_SNAKE_FP_REGS, NON_SHIFT_REGS, SHIFT_REGS, ALL_REGS, LIM_REG_CLASSES}; 
        !           531: 
        !           532: #define N_REG_CLASSES (int) LIM_REG_CLASSES
        !           533: 
        !           534: /* Give names of register classes as strings for dump file.   */
        !           535: 
        !           536: #define REG_CLASS_NAMES \
        !           537:   { "NO_REGS", "R1_REGS", "GENERAL_REGS", "FP_REGS", "GENERAL_OR_FP_REGS",\
        !           538:     "HI_SNAKE_FP_REGS", "SNAKE_FP_REGS", "GENERAL_OR_SNAKE_FP_REGS",\
        !           539:     "FP_OR_SNAKE_FP_REGS", "NON_SHIFT_REGS", "SHIFT_REGS", "ALL_REGS"}
        !           540: 
        !           541: /* Define which registers fit in which classes.
        !           542:    This is an initializer for a vector of HARD_REG_SET
        !           543:    of length N_REG_CLASSES. Register 0, the "condition code" register,
        !           544:    is in no class. */
        !           545: 
        !           546: #define REG_CLASS_CONTENTS     \
        !           547: { {0, 0, 0, 0},                        /* NO_REGS */           \
        !           548:   {0x2, 0, 0, 0},              /* R1_REGS */           \
        !           549:   {-2, 0, 0, 0},               /* GENERAL_REGS */      \
        !           550:   {0, 0xfff, 0, 0},            /* FP_REGS */           \
        !           551:   {-2, 0xfff, 0, 0},           /* GENERAL_OR_FP_REGS */\
        !           552:   {0, 0, 0xfffffff0, 0xf},     /* HI_SNAKE_FP_REGS */  \
        !           553:   {0, 0xfffff000, ~0, 0xf},    /* SNAKE_FP_REGS */     \
        !           554:   {-2, 0xfffff000, ~0, 0xf},   /* GENERAL_OR_SNAKE_FP_REGS */\
        !           555:   {0, ~0, ~0, 0xf},            /* FP_OR_SNAKE_FP_REGS */\
        !           556:   {-2, ~0, ~0, ~0x10},         /* NON_SHIFT_REGS */    \
        !           557:   {0, 0, 0, 0x10},             /* SHIFT_REGS */        \
        !           558:   {-2, ~0, ~0, 0x1f}}          /* ALL_REGS */
        !           559: 
        !           560: /* The same information, inverted:
        !           561:    Return the class number of the smallest class containing
        !           562:    reg number REGNO.  This could be a conditional expression
        !           563:    or could index an array.  */
        !           564: 
        !           565: #define REGNO_REG_CLASS(REGNO)         \
        !           566:   ((REGNO) == 0 ? NO_REGS              \
        !           567:    : (REGNO) == 1 ? R1_REGS            \
        !           568:    : (REGNO) < 32 ? GENERAL_REGS       \
        !           569:    : (REGNO) < 44 ? FP_REGS            \
        !           570:    : (REGNO) < 68 ? SNAKE_FP_REGS      \
        !           571:    : (REGNO) < 100 ? HI_SNAKE_FP_REGS  \
        !           572:    : SHIFT_REGS)
        !           573: 
        !           574: /* The class value for index registers, and the one for base regs.  */
        !           575: #define INDEX_REG_CLASS GENERAL_REGS
        !           576: #define BASE_REG_CLASS GENERAL_REGS
        !           577: 
        !           578: #define FP_REG_CLASS_P(CLASS) \
        !           579:   (CLASS == FP_REGS || CLASS == SNAKE_FP_REGS || CLASS == HI_SNAKE_FP_REGS)
        !           580: 
        !           581: /* Get reg_class from a letter such as appears in the machine description.
        !           582:    Note 'Z' is not the same as 'r' since SHIFT_REGS is not part of 
        !           583:    GENERAL_REGS.  */
        !           584: 
        !           585: #define REG_CLASS_FROM_LETTER(C) \
        !           586:   ((C) == 'f' ? (!TARGET_SNAKE ? FP_REGS : NO_REGS) :          \
        !           587:    ((C) == 'x' ? (TARGET_SNAKE ? SNAKE_FP_REGS : NO_REGS) :    \
        !           588:     ((C) == 'y' ? (TARGET_SNAKE ? HI_SNAKE_FP_REGS : NO_REGS) :        \
        !           589:      ((C) == 'q' ? SHIFT_REGS :                                        \
        !           590:       ((C) == 'a' ? R1_REGS :                                  \
        !           591:        ((C) == 'z' ? FP_OR_SNAKE_FP_REGS :                     \
        !           592:         ((C) == 'Z' ? ALL_REGS : NO_REGS)))))))
        !           593: 
        !           594: /* The letters I, J, K, L and M in a register constraint string
        !           595:    can be used to stand for particular ranges of immediate operands.
        !           596:    This macro defines what the ranges are.
        !           597:    C is the letter, and VALUE is a constant value.
        !           598:    Return 1 if VALUE is in the range specified by C.
        !           599: 
        !           600:    `I' is used for the 11 bit constants.
        !           601:    `J' is used for the 14 bit constants.
        !           602:    `K' is used for values that can be moved with a zdepi insn.
        !           603:    `L' is used for the 5 bit constants.
        !           604:    `M' is used for 0.
        !           605:    `N' is used for values with the least significant 11 bits equal to zero.
        !           606:    `O' is used for numbers n such that n+1 is a power of 2.
        !           607:    */
        !           608: 
        !           609: #ifdef NeXT_ASM
        !           610: #define RIGHT_BITS_MASK 0x3fff
        !           611: #else
        !           612: #define RIGHT_BITS_MASK 0x7ff
        !           613: #endif
        !           614: 
        !           615: #define CONST_OK_FOR_LETTER_P(VALUE, C)  \
        !           616:   ((C) == 'I' ? VAL_11_BITS_P (VALUE)                          \
        !           617:    : (C) == 'J' ? VAL_14_BITS_P (VALUE)                                \
        !           618:    : (C) == 'K' ? zdepi_cint_p (VALUE)                         \
        !           619:    : (C) == 'L' ? VAL_5_BITS_P (VALUE)                         \
        !           620:    : (C) == 'M' ? (VALUE) == 0                                 \
        !           621:    : (C) == 'N' ? ((VALUE) & RIGHT_BITS_MASK) == 0             \
        !           622:    : (C) == 'O' ? (((VALUE) & ((VALUE) + 1)) == 0)             \
        !           623:    : (C) == 'P' ? and_mask_p (VALUE)                           \
        !           624:    : 0)
        !           625: 
        !           626: /* Similar, but for floating or large integer constants, and defining letters
        !           627:    G and H.   Here VALUE is the CONST_DOUBLE rtx itself.
        !           628: 
        !           629:    For PA, `G' is the floating-point constant zero.  `H' is undefined.  */
        !           630: 
        !           631: #define CONST_DOUBLE_OK_FOR_LETTER_P(VALUE, C)                         \
        !           632:   ((C) == 'G' ? (GET_MODE_CLASS (GET_MODE (VALUE)) == MODE_FLOAT       \
        !           633:                 && (VALUE) == CONST0_RTX (GET_MODE (VALUE)))           \
        !           634:    : 0)
        !           635: 
        !           636: /* Given an rtx X being reloaded into a reg required to be
        !           637:    in class CLASS, return the class of reg to actually use.
        !           638:    In general this is just CLASS; but on some machines
        !           639:    in some cases it is preferable to use a more restrictive class.  */
        !           640: #define PREFERRED_RELOAD_CLASS(X,CLASS) (CLASS)
        !           641: 
        !           642: /* Return the register class of a scratch register needed to copy IN into
        !           643:    or out of a register in CLASS in MODE.  If it can be done directly,
        !           644:    NO_REGS is returned.  */
        !           645: 
        !           646: #define SECONDARY_RELOAD_CLASS(CLASS,MODE,IN) \
        !           647:   secondary_reload_class (CLASS, MODE, IN)
        !           648: 
        !           649: /* On the PA it is not possible to directly move data between 
        !           650:    GENERAL_REGS and FP_REGS.  */
        !           651: #define SECONDARY_MEMORY_NEEDED(CLASS1, CLASS2, MODE)  \
        !           652:   ((FP_REG_CLASS_P (CLASS1) && ! FP_REG_CLASS_P (CLASS2))      \
        !           653:    || (! FP_REG_CLASS_P (CLASS1) && FP_REG_CLASS_P (CLASS2)))
        !           654: 
        !           655: /* Return the stack location to use for secondary memory needed reloads.  */
        !           656: #define SECONDARY_MEMORY_NEEDED_RTX(MODE) \
        !           657:   gen_rtx (MEM, MODE, gen_rtx (PLUS, Pmode, stack_pointer_rtx, GEN_INT (-16)))
        !           658: 
        !           659: /* Return the maximum number of consecutive registers
        !           660:    needed to represent mode MODE in a register of class CLASS.  */
        !           661: #define CLASS_MAX_NREGS(CLASS, MODE)   \
        !           662:   ((CLASS) == FP_REGS ? 1 : ((GET_MODE_SIZE (MODE) + UNITS_PER_WORD - 1) / UNITS_PER_WORD))
        !           663: 
        !           664: /* Stack layout; function entry, exit and calling.  */
        !           665: 
        !           666: /* Define this if pushing a word on the stack
        !           667:    makes the stack pointer a smaller address.  */
        !           668: /* #define STACK_GROWS_DOWNWARD */
        !           669: 
        !           670: /* Believe it or not.  */
        !           671: #define ARGS_GROW_DOWNWARD
        !           672: 
        !           673: /* Define this if the nominal address of the stack frame
        !           674:    is at the high-address end of the local variables;
        !           675:    that is, each additional local variable allocated
        !           676:    goes at a more negative offset in the frame.  */
        !           677: /* #define FRAME_GROWS_DOWNWARD */
        !           678: 
        !           679: /* Offset within stack frame to start allocating local variables at.
        !           680:    If FRAME_GROWS_DOWNWARD, this is the offset to the END of the
        !           681:    first local allocated.  Otherwise, it is the offset to the BEGINNING
        !           682:    of the first local allocated.  */
        !           683: #define STARTING_FRAME_OFFSET 8
        !           684: 
        !           685: /* If we generate an insn to push BYTES bytes,
        !           686:    this says how many the stack pointer really advances by.
        !           687:    On the HP-PA, don't define this because there are no push insns.  */
        !           688: /*  #define PUSH_ROUNDING(BYTES) */
        !           689: 
        !           690: /* Offset of first parameter from the argument pointer register value.
        !           691:    This value will be negated because the arguments grow down.
        !           692:    Also note that on STACK_GROWS_UPWARD machines (such as this one)
        !           693:    this is the distance from the frame pointer to the end of the first
        !           694:    argument, not it's beginning.  To get the real offset of the first
        !           695:    argument, the size of the argument must be added.
        !           696: 
        !           697:    ??? Have to check on this.*/
        !           698: 
        !           699: #define FIRST_PARM_OFFSET(FNDECL) -32 
        !           700: 
        !           701: /* Absolute value of offset from top-of-stack address to location to store the
        !           702:    function parameter if it can't go in a register.
        !           703:    Addresses for following parameters are computed relative to this one.  */
        !           704: #define FIRST_PARM_CALLER_OFFSET(FNDECL) -32 
        !           705: 
        !           706: 
        !           707: /* When a parameter is passed in a register, stack space is still
        !           708:    allocated for it.  */
        !           709: #define REG_PARM_STACK_SPACE(DECL) 16
        !           710: 
        !           711: /* Define this if the above stack space is to be considered part of the
        !           712:    space allocated by the caller.  */
        !           713: #define OUTGOING_REG_PARM_STACK_SPACE
        !           714: 
        !           715: /* Keep the stack pointer constant throughout the function.
        !           716:    This is both an optimization and a necessity: longjmp
        !           717:    doesn't behave itself when the stack pointer moves within
        !           718:    the function!  */
        !           719: #define ACCUMULATE_OUTGOING_ARGS
        !           720:   
        !           721: /* The weird HPPA calling conventions require a minimum of 48 bytes on 
        !           722:    the stack: 16 bytes for register saves, and 32 bytes for magic.
        !           723:    This is the difference between the logical top of stack and the
        !           724:    actual sp. */ 
        !           725: #define STACK_POINTER_OFFSET -32
        !           726: 
        !           727: #define STACK_DYNAMIC_OFFSET(FNDECL)   \
        !           728:   ((STACK_POINTER_OFFSET) - current_function_outgoing_args_size)
        !           729: 
        !           730: /* Value is 1 if returning from a function call automatically
        !           731:    pops the arguments described by the number-of-args field in the call.
        !           732:    FUNTYPE is the data type of the function (as a tree),
        !           733:    or for a library call it is an identifier node for the subroutine name.  */
        !           734: 
        !           735: #define RETURN_POPS_ARGS(FUNTYPE,SIZE) 0
        !           736: 
        !           737: /* Define how to find the value returned by a function.
        !           738:    VALTYPE is the data type of the value (as a tree).
        !           739:    If the precise function being called is known, FUNC is its FUNCTION_DECL;
        !           740:    otherwise, FUNC is 0.  */
        !           741: 
        !           742: /* On the HP-PA the value is found in register(s) 28(-29), unless
        !           743:    the mode is SF or DF. Then the value is returned in fr4 (32, ) */
        !           744: 
        !           745: 
        !           746: #define FUNCTION_VALUE(VALTYPE, FUNC)  \
        !           747:   gen_rtx (REG, TYPE_MODE (VALTYPE), ((TYPE_MODE (VALTYPE) == SFmode ||\
        !           748:                                       TYPE_MODE (VALTYPE) == DFmode) ? \
        !           749:                                      (TARGET_SNAKE ? 44 : 32) : 28))
        !           750: 
        !           751: /* Define how to find the value returned by a library function
        !           752:    assuming the value has mode MODE.  */
        !           753: 
        !           754: #define LIBCALL_VALUE(MODE) \
        !           755:   gen_rtx (REG, MODE, (MODE == SFmode || MODE == DFmode ?\
        !           756:                       (TARGET_SNAKE ? 44 : 32) : 28))
        !           757: 
        !           758: /* 1 if N is a possible register number for a function value
        !           759:    as seen by the caller.  */
        !           760: 
        !           761: #define FUNCTION_VALUE_REGNO_P(N) ((N) == 28 || (N) == (TARGET_SNAKE ? 44 : 32))
        !           762: 
        !           763: /* 1 if N is a possible register number for function argument passing.  */
        !           764: 
        !           765: #define FUNCTION_ARG_REGNO_P(N)                                \
        !           766:   (((N) >= 23 && (N) <= 26)                            \
        !           767:    || ((N) >= 32 && (N) <= 35 && ! TARGET_SNAKE)       \
        !           768:    || ((N) >= 44 && (N) <= 51 && TARGET_SNAKE))
        !           769: 
        !           770: /* Define a data type for recording info about an argument list
        !           771:    during the scan of that argument list.  This data type should
        !           772:    hold all necessary information about the function itself
        !           773:    and about the args processed so far, enough to enable macros
        !           774:    such as FUNCTION_ARG to determine where the next arg should go.
        !           775: 
        !           776:    On the HP-PA, this is a single integer, which is a number of words
        !           777:    of arguments scanned so far (including the invisible argument,
        !           778:    if any, which holds the structure-value-address).
        !           779:    Thus 4 or more means all following args should go on the stack.  */
        !           780: 
        !           781: #define CUMULATIVE_ARGS int
        !           782: 
        !           783: /* Initialize a variable CUM of type CUMULATIVE_ARGS
        !           784:    for a call to a function whose data type is FNTYPE.
        !           785:    For a library call, FNTYPE is 0.
        !           786: */
        !           787: 
        !           788: #define INIT_CUMULATIVE_ARGS(CUM,FNTYPE,LIBNAME) ((CUM) = 0)
        !           789: 
        !           790: /* Figure out the size in words of the function argument. */
        !           791: 
        !           792: #define FUNCTION_ARG_SIZE(MODE, TYPE)  \
        !           793:   ((((MODE) != BLKmode ? GET_MODE_SIZE (MODE) : int_size_in_bytes (TYPE))+3)/4)
        !           794: 
        !           795: /* Update the data in CUM to advance over an argument
        !           796:    of mode MODE and data type TYPE.
        !           797:    (TYPE is null for libcalls where that information may not be available.)  */
        !           798: 
        !           799: #define FUNCTION_ARG_ADVANCE(CUM, MODE, TYPE, NAMED)                   \
        !           800:     (((((CUM) & 01) && (TYPE) != 0 && FUNCTION_ARG_SIZE(MODE, TYPE) > 1)\
        !           801:       && (CUM)++), (CUM) += FUNCTION_ARG_SIZE(MODE, TYPE))
        !           802: 
        !           803: /* Determine where to put an argument to a function.
        !           804:    Value is zero to push the argument on the stack,
        !           805:    or a hard register in which to store the argument.
        !           806: 
        !           807:    MODE is the argument's machine mode.
        !           808:    TYPE is the data type of the argument (as a tree).
        !           809:     This is null for libcalls where that information may
        !           810:     not be available.
        !           811:    CUM is a variable of type CUMULATIVE_ARGS which gives info about
        !           812:     the preceding args and about the function being called.
        !           813:    NAMED is nonzero if this argument is a named parameter
        !           814:     (otherwise it is an extra parameter matching an ellipsis).  */
        !           815: 
        !           816: /* On the HP-PA the first four words of args are normally in registers
        !           817:    and the rest are pushed.  But any arg that won't entirely fit in regs
        !           818:    is pushed.
        !           819: 
        !           820:    Arguments passed in registers are either 1 or 2 words long.
        !           821: 
        !           822:    The caller must make a distinction between calls to explicitly named
        !           823:    functions and calls through pointers to functions -- the conventions
        !           824:    are different!  Calls through pointers to functions only use general
        !           825:    registers for the first four argument words.  */
        !           826: 
        !           827: #define FUNCTION_ARG_PADDING(MODE, TYPE) function_arg_padding ((MODE), (TYPE))
        !           828: 
        !           829: #define FUNCTION_ARG(CUM, MODE, TYPE, NAMED)                           \
        !           830:   (4 >= ((CUM) + FUNCTION_ARG_SIZE ((MODE), (TYPE)))                   \
        !           831:    ? gen_rtx (REG, (MODE),                                             \
        !           832:              (FUNCTION_ARG_SIZE ((MODE), (TYPE)) > 1                   \
        !           833:               ? ((! current_call_is_indirect                           \
        !           834:                   && (MODE) == DFmode)                                 \
        !           835:                  ? ((CUM) ? (TARGET_SNAKE ? 50 : 35)                   \
        !           836:                     : (TARGET_SNAKE ? 46 : 33))                        \
        !           837:                  : ((CUM) ? 23 : 25))                                  \
        !           838:               : ((! current_call_is_indirect                           \
        !           839:                   && (MODE) == SFmode)                                 \
        !           840:                  ? (TARGET_SNAKE ? 44 + 2 * (CUM) : 32  + (CUM))       \
        !           841:                  : (27 - (CUM) - FUNCTION_ARG_SIZE ((MODE), (TYPE))))))\
        !           842:    : 0)
        !           843: 
        !           844: /* Define where a function finds its arguments.
        !           845:    This would be different from FUNCTION_ARG if we had register windows.  */
        !           846: 
        !           847: #define FUNCTION_INCOMING_ARG(CUM, MODE, TYPE, NAMED)  \
        !           848:   FUNCTION_ARG (CUM, MODE, TYPE, NAMED)
        !           849: 
        !           850: /* For an arg passed partly in registers and partly in memory,
        !           851:    this is the number of registers used.
        !           852:    For args passed entirely in registers or entirely in memory, zero.  */
        !           853: 
        !           854: #define FUNCTION_ARG_PARTIAL_NREGS(CUM, MODE, TYPE, NAMED) 0
        !           855: 
        !           856: /* If defined, a C expression that gives the alignment boundary, in
        !           857:    bits, of an argument with the specified mode and type.  If it is
        !           858:    not defined,  `PARM_BOUNDARY' is used for all arguments.  */
        !           859: /*
        !           860: #define FUNCTION_ARG_BOUNDARY(MODE, TYPE)                              \
        !           861:   (((TYPE) != 0)                                                       \
        !           862:        ? (((int_size_in_bytes (TYPE)) + 3) / 4) * BITS_PER_WORD        \
        !           863:        : ((GET_MODE_ALIGNMENT(MODE) <= PARM_BOUNDARY)                  \
        !           864:                ? PARM_BOUNDARY                                         \
        !           865:                : GET_MODE_ALIGNMENT(MODE)))
        !           866: */
        !           867: #define FUNCTION_ARG_BOUNDARY(MODE, TYPE)                              \
        !           868:   (((TYPE) != 0)                                                       \
        !           869:        ? ((TYPE_ALIGN(TYPE) <= PARM_BOUNDARY)                          \
        !           870:                ? PARM_BOUNDARY                                          \
        !           871:                : TYPE_ALIGN(TYPE))                                      \
        !           872:        : ((GET_MODE_ALIGNMENT(MODE) <= PARM_BOUNDARY)                  \
        !           873:                ? PARM_BOUNDARY                                         \
        !           874:                : GET_MODE_ALIGNMENT(MODE)))
        !           875: 
        !           876: /* Arguments larger than eight bytes are passed by invisible reference */
        !           877: 
        !           878: #define FUNCTION_ARG_PASS_BY_REFERENCE(CUM, MODE, TYPE, NAMED)         \
        !           879:   ((TYPE) && int_size_in_bytes (TYPE) > 8)
        !           880: 
        !           881: extern struct rtx_def *hppa_compare_op0, *hppa_compare_op1;
        !           882: extern enum cmp_type hppa_branch_type;
        !           883: 
        !           884: /* How the quote in "R'label" is printed. */
        !           885: #ifdef NeXT_ASM
        !           886: #define PA_QUOTE '`'
        !           887: #else
        !           888: #define PA_QUOTE '\''
        !           889: #endif
        !           890: 
        !           891: /* Output the label for a function definition.  */
        !           892: #ifndef HP_FP_ARG_DESCRIPTOR_REVERSED
        !           893: #define ASM_DOUBLE_ARG_DESCRIPTORS(FILE, ARG0, ARG1)   \
        !           894:   do { fprintf (FILE, ",ARGW%d=FR", (ARG0));           \
        !           895:        fprintf (FILE, ",ARGW%d=FU", (ARG1));} while (0)
        !           896: #else
        !           897: #define ASM_DOUBLE_ARG_DESCRIPTORS(FILE, ARG0, ARG1)   \
        !           898:   do { fprintf (FILE, ",ARGW%d=FU", (ARG0));           \
        !           899:        fprintf (FILE, ",ARGW%d=FR", (ARG1));} while (0)
        !           900: #endif
        !           901: 
        !           902: #define ASM_DECLARE_FUNCTION_NAME(FILE, NAME, DECL) \
        !           903:     do { tree fntype = TREE_TYPE (TREE_TYPE (DECL));                   \
        !           904:         tree tree_type = TREE_TYPE (DECL);                             \
        !           905:         tree parm;                                                     \
        !           906:         int i;                                                         \
        !           907:         if (TREE_PUBLIC (DECL) || TARGET_GAS)                          \
        !           908:           { extern int current_function_varargs;                       \
        !           909:             if (TREE_PUBLIC (DECL))                                    \
        !           910:               {                                                        \
        !           911:                 fputs ("\t.EXPORT ", FILE);                            \
        !           912:                 assemble_name (FILE, NAME);                            \
        !           913:                 fputs (",ENTRY,PRIV_LEV=3", FILE);                     \
        !           914:               }                                                        \
        !           915:             else                                                       \
        !           916:               {                                                        \
        !           917:                 fputs ("\t.PARAM ", FILE);                             \
        !           918:                 assemble_name (FILE, NAME);                            \
        !           919:               }                                                        \
        !           920:             for (parm = DECL_ARGUMENTS (DECL), i = 0; parm && i < 4;   \
        !           921:                  parm = TREE_CHAIN (parm))                             \
        !           922:               {                                                        \
        !           923:                 if (TYPE_MODE (DECL_ARG_TYPE (parm)) == SFmode)        \
        !           924:                   fprintf (FILE, ",ARGW%d=FR", i++);                   \
        !           925:                 else if (TYPE_MODE (DECL_ARG_TYPE (parm)) == DFmode)   \
        !           926:                   {                                                    \
        !           927:                     if (i <= 2)                                        \
        !           928:                       {                                                \
        !           929:                         if (i == 1) i++;                               \
        !           930:                         ASM_DOUBLE_ARG_DESCRIPTORS (FILE, i++, i++);   \
        !           931:                       }                                                \
        !           932:                     else                                               \
        !           933:                       break;                                           \
        !           934:                   }                                                    \
        !           935:                 else                                                   \
        !           936:                   {                                                    \
        !           937:                     int arg_size =                                     \
        !           938:                       FUNCTION_ARG_SIZE (TYPE_MODE (DECL_ARG_TYPE (parm)),\
        !           939:                                          DECL_ARG_TYPE (parm));        \
        !           940:                     if (arg_size == 2 && i <= 2)                       \
        !           941:                       {                                                \
        !           942:                         if (i == 1) i++;                               \
        !           943:                         fprintf (FILE, ",ARGW%d=GR", i++);             \
        !           944:                         fprintf (FILE, ",ARGW%d=GR", i++);             \
        !           945:                       }                                                \
        !           946:                     else if (arg_size == 1)                            \
        !           947:                       fprintf (FILE, ",ARGW%d=GR", i++);               \
        !           948:                     else                                               \
        !           949:                       i += arg_size;                                   \
        !           950:                   }                                                    \
        !           951:               }                                                        \
        !           952:             /* anonymous args */                                       \
        !           953:             if ((TYPE_ARG_TYPES (tree_type) != 0                       \
        !           954:                  && (TREE_VALUE (tree_last (TYPE_ARG_TYPES (tree_type)))\
        !           955:                      != void_type_node))                               \
        !           956:                 || current_function_varargs)                           \
        !           957:               {                                                        \
        !           958:                 for (; i < 4; i++)                                     \
        !           959:                   fprintf (FILE, ",ARGW%d=GR", i);                     \
        !           960:               }                                                        \
        !           961:             if (TYPE_MODE (fntype) == DFmode)                          \
        !           962:               fprintf (FILE, ",RTNVAL=FR");                            \
        !           963:             else if (TYPE_MODE (fntype) == SFmode)                     \
        !           964:               fprintf (FILE, ",RTNVAL=FU");                            \
        !           965:             else if (fntype != void_type_node)                         \
        !           966:               fprintf (FILE, ",RTNVAL=GR");                            \
        !           967:             fputs ("\n", FILE);                                        \
        !           968:           }                                                            \
        !           969:         ASM_OUTPUT_LABEL (FILE, NAME);} while (0)
        !           970: 
        !           971: /* This macro generates the assembly code for function entry.
        !           972:    FILE is a stdio stream to output the code to.
        !           973:    SIZE is an int: how many units of temporary storage to allocate.
        !           974:    Refer to the array `regs_ever_live' to determine which registers
        !           975:    to save; `regs_ever_live[I]' is nonzero if register number I
        !           976:    is ever used in the function.  This macro is responsible for
        !           977:    knowing which registers should not be saved even if used.  */
        !           978: 
        !           979: /* On HP-PA, move-double insns between fpu and cpu need an 8-byte block
        !           980:    of memory.  If any fpu reg is used in the function, we allocate
        !           981:    such a block here, at the bottom of the frame, just in case it's needed.
        !           982: 
        !           983:    If this function is a leaf procedure, then we may choose not
        !           984:    to do a "save" insn.  The decision about whether or not
        !           985:    to do this is made in regclass.c.  */
        !           986: 
        !           987: #define FUNCTION_PROLOGUE(FILE, SIZE) \
        !           988:   output_function_prologue (FILE, SIZE)
        !           989: 
        !           990: /* Output assembler code to FILE to increment profiler label # LABELNO
        !           991:    for profiling a function entry.
        !           992: 
        !           993:    Because HPUX _mcount is so different, we actually emit the
        !           994:    profiling code in function_prologue. This just stores LABELNO for
        !           995:    that. */
        !           996: 
        !           997: #define PROFILE_BEFORE_PROLOGUE
        !           998: #define FUNCTION_PROFILER(FILE, LABELNO) \
        !           999: { extern int hp_profile_labelno; hp_profile_labelno = (LABELNO);}
        !          1000: 
        !          1001: /* EXIT_IGNORE_STACK should be nonzero if, when returning from a function,
        !          1002:    the stack pointer does not matter.  The value is tested only in
        !          1003:    functions that have frame pointers.
        !          1004:    No definition is equivalent to always zero.  */
        !          1005: 
        !          1006: extern int may_call_alloca;
        !          1007: extern int current_function_pretend_args_size;
        !          1008: 
        !          1009: #define EXIT_IGNORE_STACK      \
        !          1010:  (get_frame_size () != 0       \
        !          1011:   || current_function_calls_alloca || current_function_outgoing_args_size)
        !          1012: 
        !          1013: 
        !          1014: /* This macro generates the assembly code for function exit,
        !          1015:    on machines that need it.  If FUNCTION_EPILOGUE is not defined
        !          1016:    then individual return instructions are generated for each
        !          1017:    return statement.  Args are same as for FUNCTION_PROLOGUE.
        !          1018: 
        !          1019:    The function epilogue should not depend on the current stack pointer!
        !          1020:    It should use the frame pointer only.  This is mandatory because
        !          1021:    of alloca; we also take advantage of it to omit stack adjustments
        !          1022:    before returning.  */
        !          1023: 
        !          1024: /* This declaration is needed due to traditional/ANSI
        !          1025:    incompatibilities which cannot be #ifdefed away
        !          1026:    because they occur inside of macros.  Sigh.  */
        !          1027: extern union tree_node *current_function_decl;
        !          1028: 
        !          1029: #define FUNCTION_EPILOGUE(FILE, SIZE)                  \
        !          1030:   output_function_epilogue (FILE, SIZE)
        !          1031: 
        !          1032: /* Output assembler code for a block containing the constant parts
        !          1033:    of a trampoline, leaving space for the variable parts.\
        !          1034: 
        !          1035:    The trampoline sets the static chain pointer to STATIC_CHAIN_REGNUM
        !          1036:    and then branches to the specified routine.
        !          1037: 
        !          1038:    This code template is copied from text segment to stack location
        !          1039:    and then patched with INITIALIZE_TRAMPOLINE to contain
        !          1040:    valid values, and then entered as a subroutine. 
        !          1041: 
        !          1042:    It is best to keep this as small as possible to avoid having to 
        !          1043:    flush multiple lines in the cache.  */
        !          1044: 
        !          1045: #define TRAMPOLINE_TEMPLATE(FILE) \
        !          1046:   {                                                    \
        !          1047:     fprintf (FILE, "\tldw      36(0,%%r22),%%r21\n");  \
        !          1048:     fprintf (FILE, "\tbb,>=,n  %%r21,30,.+16\n");      \
        !          1049:     fprintf (FILE, "\tdepi     0,31,2,%%r21\n");       \
        !          1050:     fprintf (FILE, "\tldw      4(0,%%r21),%%r19\n");   \
        !          1051:     fprintf (FILE, "\tldw      0(0,%%r21),%%r21\n");   \
        !          1052:     fprintf (FILE, "\tldsid    (0,%%r21),%%r1\n");     \
        !          1053:     fprintf (FILE, "\tmtsp     %%r1,%%sr0\n");         \
        !          1054:     fprintf (FILE, "\tbe       0(%%sr0,%%r21)\n");     \
        !          1055:     fprintf (FILE, "\tldw      40(0,%%r22),%%r29\n");  \
        !          1056:     fprintf (FILE, "\t.word    0\n");                  \
        !          1057:     fprintf (FILE, "\t.word    0\n");                  \
        !          1058:   }
        !          1059: 
        !          1060: /* Length in units of the trampoline for entering a nested function.
        !          1061: 
        !          1062:    Flush the cache entries corresponding to the first and last addresses
        !          1063:    of the trampoline.  This is necessary as the trampoline may cross two
        !          1064:    cache lines.  
        !          1065: 
        !          1066:    If the code part of the trampoline ever grows to > 32 bytes, then it
        !          1067:    will become necessary to hack on the cacheflush pattern in pa.md.  */
        !          1068: 
        !          1069: #define TRAMPOLINE_SIZE (11 * 4)
        !          1070: 
        !          1071: /* Emit RTL insns to initialize the variable parts of a trampoline.
        !          1072:    FNADDR is an RTX for the address of the function's pure code.
        !          1073:    CXT is an RTX for the static chain value for the function.
        !          1074: 
        !          1075:    Move the function address to the trampoline template at offset 12.
        !          1076:    Move the static chain value to trampoline template at offset 16.  */
        !          1077: 
        !          1078: #define INITIALIZE_TRAMPOLINE(TRAMP, FNADDR, CXT) \
        !          1079: {                                                                      \
        !          1080:   rtx start_addr, end_addr, masked_start_addr;                         \
        !          1081:                                                                        \
        !          1082:   start_addr = memory_address (Pmode, plus_constant ((TRAMP), 36));    \
        !          1083:   emit_move_insn (gen_rtx (MEM, Pmode, start_addr), (FNADDR));         \
        !          1084:   start_addr = memory_address (Pmode, plus_constant ((TRAMP), 40));    \
        !          1085:   emit_move_insn (gen_rtx (MEM, Pmode, start_addr), (CXT));            \
        !          1086:   /* fdc and fic only use registers for the address to flush,          \
        !          1087:      they do not accept integer displacements.  */                     \
        !          1088:   start_addr = force_reg (SImode, (TRAMP));                            \
        !          1089:   end_addr = force_reg (SImode, plus_constant ((TRAMP), 32));          \
        !          1090:   emit_insn (gen_dcacheflush (start_addr, end_addr));                  \
        !          1091:   masked_start_addr = gen_reg_rtx (SImode);                            \
        !          1092:   emit_insn (gen_andsi3 (masked_start_addr, start_addr,                        \
        !          1093:                         GEN_INT (0x3fffffff)));                        \
        !          1094:   end_addr = force_reg (SImode, plus_constant (masked_start_addr, 32));        \
        !          1095:   emit_insn (gen_icacheflush (masked_start_addr, end_addr, start_addr, \
        !          1096:                              gen_reg_rtx (SImode), gen_reg_rtx (SImode)));\
        !          1097: }
        !          1098: 
        !          1099: /* Emit code for a call to builtin_saveregs.  We must emit USE insns which
        !          1100:    reference the 4 integer arg registers and 4 fp arg registers.
        !          1101:    Ordinarily they are not call used registers, but they are for
        !          1102:    _builtin_saveregs, so we must make this explicit.  */
        !          1103: 
        !          1104: #define EXPAND_BUILTIN_SAVEREGS(ARGLIST) (rtx)hppa_builtin_saveregs (ARGLIST)
        !          1105: 
        !          1106: 
        !          1107: /* Addressing modes, and classification of registers for them.  */
        !          1108: 
        !          1109: #define HAVE_POST_INCREMENT
        !          1110: #define HAVE_POST_DECREMENT
        !          1111: 
        !          1112: #define HAVE_PRE_DECREMENT
        !          1113: #define HAVE_PRE_INCREMENT
        !          1114: 
        !          1115: /* Macros to check register numbers against specific register classes.  */
        !          1116: 
        !          1117: /* These assume that REGNO is a hard or pseudo reg number.
        !          1118:    They give nonzero only if REGNO is a hard reg of the suitable class
        !          1119:    or a pseudo reg currently allocated to a suitable hard reg.
        !          1120:    Since they use reg_renumber, they are safe only once reg_renumber
        !          1121:    has been allocated, which happens in local-alloc.c.  */
        !          1122: 
        !          1123: #define REGNO_OK_FOR_INDEX_P(REGNO) \
        !          1124:   ((REGNO) && ((REGNO) < 32 || (unsigned) reg_renumber[REGNO] < 32))
        !          1125: #define REGNO_OK_FOR_BASE_P(REGNO)  \
        !          1126:   ((REGNO) && ((REGNO) < 32 || (unsigned) reg_renumber[REGNO] < 32))
        !          1127: #define REGNO_OK_FOR_FP_P(REGNO) \
        !          1128:   (((REGNO) >= 32 && (REGNO) <= 99)\
        !          1129:    || (reg_renumber[REGNO] >= 32 && reg_renumber[REGNO] <= 99))
        !          1130: 
        !          1131: /* Now macros that check whether X is a register and also,
        !          1132:    strictly, whether it is in a specified class.
        !          1133: 
        !          1134:    These macros are specific to the the HP-PA, and may be used only
        !          1135:    in code for printing assembler insns and in conditions for
        !          1136:    define_optimization.  */
        !          1137: 
        !          1138: /* 1 if X is an fp register.  */
        !          1139: 
        !          1140: #define FP_REG_P(X) (REG_P (X) && REGNO_OK_FOR_FP_P (REGNO (X)))
        !          1141: 
        !          1142: /* Maximum number of registers that can appear in a valid memory address.  */
        !          1143: 
        !          1144: #define MAX_REGS_PER_ADDRESS 2
        !          1145: 
        !          1146: /* Recognize any constant value that is a valid address except
        !          1147:    for symbolic addresses.  We get better CSE by rejecting them
        !          1148:    here and allowing hppa_legitimize_address to break them up.  We
        !          1149:    use most of the constants accepted by CONSTANT_P, except CONST_DOUBLE.  */
        !          1150: 
        !          1151: #define CONSTANT_ADDRESS_P(X) \
        !          1152:   ((GET_CODE (X) == LABEL_REF || GET_CODE (X) == SYMBOL_REF            \
        !          1153:    || GET_CODE (X) == CONST_INT || GET_CODE (X) == CONST               \
        !          1154:    || GET_CODE (X) == HIGH)                                            \
        !          1155:    && (reload_in_progress || reload_completed || ! symbolic_expression_p (X)))
        !          1156: 
        !          1157: /* Include all constant integers and constant doubles, but not
        !          1158:    floating-point, except for floating-point zero. 
        !          1159: 
        !          1160:    Also reject function labels as reload can not handle them correctly
        !          1161:    right now.  (Fix this for 2.5).  */
        !          1162: #define LEGITIMATE_CONSTANT_P(X)               \
        !          1163:   (((GET_MODE_CLASS (GET_MODE (X)) != MODE_FLOAT       \
        !          1164:      || (X) == CONST0_RTX (GET_MODE (X)))      \
        !          1165:     && ! function_label_operand (X, VOIDmode)))
        !          1166: 
        !          1167: /* Subroutine for EXTRA_CONSTRAINT.  
        !          1168: 
        !          1169:    Return 1 iff OP is a pseudo which did not get a hard register and
        !          1170:    we are running the reload pass.  */
        !          1171: 
        !          1172: #define IS_RELOADING_PSEUDO_P(OP) \
        !          1173:   ((reload_in_progress                                 \
        !          1174:     && GET_CODE (OP) == REG                            \
        !          1175:     && REGNO (OP) >= FIRST_PSEUDO_REGISTER             \
        !          1176:     && reg_renumber [REGNO (OP)] < 0))
        !          1177: 
        !          1178: /* Optional extra constraints for this machine. Borrowed from sparc.h.
        !          1179: 
        !          1180:    For the HPPA, `Q' means that this is a memory operand but not a
        !          1181:    symbolic memory operand.  Note that an unassigned pseudo register
        !          1182:    is such a memory operand.  Needed because reload will generate
        !          1183:    these things in insns and then not re-recognize the insns, causing
        !          1184:    constrain_operands to fail.
        !          1185: 
        !          1186:    Also note `Q' accepts any memory operand during the reload pass.
        !          1187:    This includes out-of-range displacements in reg+d addressing. 
        !          1188:    This makes for better code.  (??? For 2.5 address this issue).
        !          1189: 
        !          1190:    `R' is unused.
        !          1191: 
        !          1192:    `S' is unused.
        !          1193: 
        !          1194:    `T' is for fp loads and stores.  */
        !          1195: #define EXTRA_CONSTRAINT(OP, C)                                \
        !          1196:   ((C) == 'Q' ?                                                \
        !          1197:    (IS_RELOADING_PSEUDO_P (OP)                         \
        !          1198:     || (GET_CODE (OP) == MEM                           \
        !          1199:        && reload_in_progress)                          \
        !          1200:     || (GET_CODE (OP) == MEM                           \
        !          1201:        && memory_address_p (GET_MODE (OP), XEXP (OP, 0))\
        !          1202:        && ! symbolic_memory_operand (OP, VOIDmode)))   \
        !          1203:    : ((C) == 'T' ?                                     \
        !          1204:       (GET_CODE (OP) == MEM                            \
        !          1205:        /* Using DFmode forces only short displacements \
        !          1206:          to be recognized as valid in reg+d addresses.  */\
        !          1207:        && memory_address_p (DFmode, XEXP (OP, 0))) : 0))
        !          1208: 
        !          1209: /* The macros REG_OK_FOR..._P assume that the arg is a REG rtx
        !          1210:    and check its validity for a certain class.
        !          1211:    We have two alternate definitions for each of them.
        !          1212:    The usual definition accepts all pseudo regs; the other rejects
        !          1213:    them unless they have been allocated suitable hard regs.
        !          1214:    The symbol REG_OK_STRICT causes the latter definition to be used.
        !          1215: 
        !          1216:    Most source files want to accept pseudo regs in the hope that
        !          1217:    they will get allocated to the class that the insn wants them to be in.
        !          1218:    Source files for reload pass need to be strict.
        !          1219:    After reload, it makes no difference, since pseudo regs have
        !          1220:    been eliminated by then.  */
        !          1221: 
        !          1222: #ifndef REG_OK_STRICT
        !          1223: 
        !          1224: /* Nonzero if X is a hard reg that can be used as an index
        !          1225:    or if it is a pseudo reg.  */
        !          1226: #define REG_OK_FOR_INDEX_P(X) \
        !          1227: (REGNO (X) && (REGNO (X) < 32 || REGNO (X) >= FIRST_PSEUDO_REGISTER))
        !          1228: /* Nonzero if X is a hard reg that can be used as a base reg
        !          1229:    or if it is a pseudo reg.  */
        !          1230: #define REG_OK_FOR_BASE_P(X) \
        !          1231: (REGNO (X) && (REGNO (X) < 32 || REGNO (X) >= FIRST_PSEUDO_REGISTER))
        !          1232: 
        !          1233: #else
        !          1234: 
        !          1235: /* Nonzero if X is a hard reg that can be used as an index.  */
        !          1236: #define REG_OK_FOR_INDEX_P(X) REGNO_OK_FOR_INDEX_P (REGNO (X))
        !          1237: /* Nonzero if X is a hard reg that can be used as a base reg.  */
        !          1238: #define REG_OK_FOR_BASE_P(X) REGNO_OK_FOR_BASE_P (REGNO (X))
        !          1239: 
        !          1240: #endif
        !          1241: 
        !          1242: /* GO_IF_LEGITIMATE_ADDRESS recognizes an RTL expression
        !          1243:    that is a valid memory address for an instruction.
        !          1244:    The MODE argument is the machine mode for the MEM expression
        !          1245:    that wants to use this address.
        !          1246: 
        !          1247:    On the HP-PA, the actual legitimate addresses must be
        !          1248:    REG+REG, REG+(REG*SCALE) or REG+SMALLINT.
        !          1249:    But we can treat a SYMBOL_REF as legitimate if it is part of this
        !          1250:    function's constant-pool, because such addresses can actually
        !          1251:    be output as REG+SMALLINT.  */
        !          1252: 
        !          1253: #define VAL_5_BITS_P(X) ((unsigned)(X) + 0x10 < 0x20)
        !          1254: #define INT_5_BITS(X) VAL_5_BITS_P (INTVAL (X))
        !          1255: 
        !          1256: #define VAL_U5_BITS_P(X) ((unsigned)(X) < 0x20)
        !          1257: #define INT_U5_BITS(X) VAL_U5_BITS_P (INTVAL (X))
        !          1258: 
        !          1259: #define VAL_11_BITS_P(X) ((unsigned)(X) + 0x400 < 0x800)
        !          1260: #define INT_11_BITS(X) VAL_11_BITS_P (INTVAL (X))
        !          1261: 
        !          1262: #define VAL_14_BITS_P(X) ((unsigned)(X) + 0x2000 < 0x4000)
        !          1263: #define INT_14_BITS(X) VAL_14_BITS_P (INTVAL (X))
        !          1264: 
        !          1265: #define GO_IF_LEGITIMATE_ADDRESS(MODE, X, ADDR)  \
        !          1266: {                                                      \
        !          1267:   if ((REG_P (X) && REG_OK_FOR_BASE_P (X))             \
        !          1268:       || ((GET_CODE (X) == PRE_DEC || GET_CODE (X) == POST_DEC         \
        !          1269:           || GET_CODE (X) == PRE_INC || GET_CODE (X) == POST_INC)      \
        !          1270:          && REG_P (XEXP (X, 0))                        \
        !          1271:          && REG_OK_FOR_BASE_P (XEXP (X, 0))))          \
        !          1272:     goto ADDR;                                         \
        !          1273:   else if (GET_CODE (X) == PLUS)                       \
        !          1274:     {                                                  \
        !          1275:       rtx base = 0, index;                             \
        !          1276:       if (flag_pic == 3 && XEXP (X, 0) == pic_offset_table_rtx)\
        !          1277:        {                                               \
        !          1278:          if (GET_CODE (XEXP (X, 1)) == REG             \
        !          1279:              && REG_OK_FOR_BASE_P (XEXP (X, 1)))       \
        !          1280:            goto ADDR;                                  \
        !          1281:          else if (flag_pic == 1                        \
        !          1282:                   && GET_CODE (XEXP (X, 1)) != REG     \
        !          1283:                   && GET_CODE (XEXP (X, 1)) != LO_SUM  \
        !          1284:                   && GET_CODE (XEXP (X, 1)) != MEM)    \
        !          1285:            goto ADDR;                                  \
        !          1286:        }                                               \
        !          1287:       else if (REG_P (XEXP (X, 0))                     \
        !          1288:          && REG_OK_FOR_BASE_P (XEXP (X, 0)))           \
        !          1289:        base = XEXP (X, 0), index = XEXP (X, 1);        \
        !          1290:       else if (REG_P (XEXP (X, 1))                     \
        !          1291:               && REG_OK_FOR_BASE_P (XEXP (X, 1)))      \
        !          1292:        base = XEXP (X, 1), index = XEXP (X, 0);        \
        !          1293:       if (base != 0)                                   \
        !          1294:        if (GET_CODE (index) == CONST_INT               \
        !          1295:            && ((INT_14_BITS (index) && (MODE) != SFmode && (MODE) != DFmode) \
        !          1296:                || INT_5_BITS (index)))                 \
        !          1297:          goto ADDR;                                    \
        !          1298:     }                                                  \
        !          1299:   else if (GET_CODE (X) == LO_SUM                      \
        !          1300:           && GET_CODE (XEXP (X, 0)) == REG             \
        !          1301:           && REG_OK_FOR_BASE_P (XEXP (X, 0))           \
        !          1302:           && CONSTANT_P (XEXP (X, 1))                  \
        !          1303:           && (MODE) != SFmode                          \
        !          1304:           && (MODE) != DFmode)                         \
        !          1305:     goto ADDR;                                         \
        !          1306:   else if (GET_CODE (X) == LO_SUM                      \
        !          1307:           && GET_CODE (XEXP (X, 0)) == SUBREG          \
        !          1308:           && GET_CODE (SUBREG_REG (XEXP (X, 0))) == REG\
        !          1309:           && REG_OK_FOR_BASE_P (SUBREG_REG (XEXP (X, 0)))\
        !          1310:           && CONSTANT_P (XEXP (X, 1))                  \
        !          1311:           && (MODE) != SFmode                          \
        !          1312:           && (MODE) != DFmode)                         \
        !          1313:     goto ADDR;                                         \
        !          1314:   else if (GET_CODE (X) == LABEL_REF                   \
        !          1315:           || (GET_CODE (X) == CONST_INT                \
        !          1316:               && INT_14_BITS (X)))                     \
        !          1317:     goto ADDR;                                         \
        !          1318: }
        !          1319: 
        !          1320: /* Try machine-dependent ways of modifying an illegitimate address
        !          1321:    to be legitimate.  If we find one, return the new, valid address.
        !          1322:    This macro is used in only one place: `memory_address' in explow.c.
        !          1323: 
        !          1324:    OLDX is the address as it was before break_out_memory_refs was called.
        !          1325:    In some cases it is useful to look at this to decide what needs to be done.
        !          1326: 
        !          1327:    MODE and WIN are passed so that this macro can use
        !          1328:    GO_IF_LEGITIMATE_ADDRESS.
        !          1329: 
        !          1330:    It is always safe for this macro to do nothing.  It exists to recognize
        !          1331:    opportunities to optimize the output.  */
        !          1332: 
        !          1333: extern struct rtx_def *hppa_legitimize_address ();
        !          1334: #define LEGITIMIZE_ADDRESS(X, OLDX, MODE, WIN) \
        !          1335: { rtx orig_x = (X);                            \
        !          1336:   (X) = hppa_legitimize_address (X, OLDX, MODE);       \
        !          1337:   if ((X) != orig_x && memory_address_p (MODE, X)) \
        !          1338:     goto WIN; }
        !          1339: 
        !          1340: /* Go to LABEL if ADDR (a legitimate address expression)
        !          1341:    has an effect that depends on the machine mode it is used for.  */
        !          1342: 
        !          1343: #define GO_IF_MODE_DEPENDENT_ADDRESS(ADDR,LABEL)       \
        !          1344:   if (GET_CODE (ADDR) == PRE_DEC       \
        !          1345:       || GET_CODE (ADDR) == POST_DEC   \
        !          1346:       || GET_CODE (ADDR) == PRE_INC    \
        !          1347:       || GET_CODE (ADDR) == POST_INC)  \
        !          1348:     goto LABEL
        !          1349: 
        !          1350: /* Define this macro if references to a symbol must be treated
        !          1351:    differently depending on something about the variable or
        !          1352:    function named by the symbol (such as what section it is in).
        !          1353: 
        !          1354:    The macro definition, if any, is executed immediately after the
        !          1355:    rtl for DECL or other node is created.
        !          1356:    The value of the rtl will be a `mem' whose address is a
        !          1357:    `symbol_ref'.
        !          1358: 
        !          1359:    The usual thing for this macro to do is to a flag in the
        !          1360:    `symbol_ref' (such as `SYMBOL_REF_FLAG') or to store a modified
        !          1361:    name string in the `symbol_ref' (if one bit is not enough
        !          1362:    information).
        !          1363: 
        !          1364:    On the HP-PA we use this to indicate if a symbol is in text or
        !          1365:    data space.  Also, function labels need special treatment. */
        !          1366: 
        !          1367: #define TEXT_SPACE_P(DECL)\
        !          1368:   (TREE_CODE (DECL) == FUNCTION_DECL                                   \
        !          1369:    || (TREE_CODE (DECL) == VAR_DECL                                    \
        !          1370:        && TREE_READONLY (DECL) && ! TREE_SIDE_EFFECTS (DECL)           \
        !          1371:        && !flag_pic)                                                   \
        !          1372:    || (*tree_code_type[(int) TREE_CODE (DECL)] == 'c'                  \
        !          1373:        && !(TREE_CODE (DECL) == STRING_CST && flag_writable_strings)))
        !          1374: 
        !          1375: #define FUNCTION_NAME_P(NAME) \
        !          1376: (*(NAME) == '@' || (*(NAME) == '*' && *((NAME) + 1) == '@'))
        !          1377: 
        !          1378: #define ENCODE_SECTION_INFO(DECL)\
        !          1379: do                                                     \
        !          1380:   { if (TEXT_SPACE_P (DECL))                           \
        !          1381:       {        rtx _rtl;                                       \
        !          1382:        if (TREE_CODE (DECL) == FUNCTION_DECL           \
        !          1383:            || TREE_CODE (DECL) == VAR_DECL)            \
        !          1384:          _rtl = DECL_RTL (DECL);                       \
        !          1385:        else                                            \
        !          1386:          _rtl = TREE_CST_RTL (DECL);                   \
        !          1387:        SYMBOL_REF_FLAG (XEXP (_rtl, 0)) = 1;           \
        !          1388:        if (TREE_CODE (DECL) == FUNCTION_DECL)          \
        !          1389:          hppa_encode_label (XEXP (DECL_RTL (DECL), 0));\
        !          1390:       }                                                        \
        !          1391:   }                                                    \
        !          1392: while (0)
        !          1393:   
        !          1394: /* Store the user-specified part of SYMBOL_NAME in VAR.
        !          1395:    This is sort of inverse to ENCODE_SECTION_INFO.  */
        !          1396: 
        !          1397: #define STRIP_NAME_ENCODING(VAR,SYMBOL_NAME)   \
        !          1398:   (VAR) = ((SYMBOL_NAME)  + ((SYMBOL_NAME)[0] == '*' ? \
        !          1399:                             1 + (SYMBOL_NAME)[1] == '@'\
        !          1400:                             : (SYMBOL_NAME)[0] == '@'))
        !          1401: 
        !          1402: /* Specify the machine mode that this machine uses
        !          1403:    for the index in the tablejump instruction.  */
        !          1404: #define CASE_VECTOR_MODE DImode
        !          1405: 
        !          1406: /* Define this if the tablejump instruction expects the table
        !          1407:    to contain offsets from the address of the table.
        !          1408:    Do not define this if the table should contain absolute addresses.  */
        !          1409: /* #define CASE_VECTOR_PC_RELATIVE */
        !          1410: 
        !          1411: #define CASE_DROPS_THROUGH
        !          1412: /* Specify the tree operation to be used to convert reals to integers.  */
        !          1413: #define IMPLICIT_FIX_EXPR FIX_ROUND_EXPR
        !          1414: 
        !          1415: /* This is the kind of divide that is easiest to do in the general case.  */
        !          1416: #define EASY_DIV_EXPR TRUNC_DIV_EXPR
        !          1417: 
        !          1418: /* Define this as 1 if `char' should by default be signed; else as 0.  */
        !          1419: #define DEFAULT_SIGNED_CHAR 1
        !          1420: 
        !          1421: /* Max number of bytes we can move from memory to memory
        !          1422:    in one reasonably fast instruction.  */
        !          1423: #define MOVE_MAX 8
        !          1424: 
        !          1425: /* Define if operations between registers always perform the operation
        !          1426:    on the full register even if a narrower mode is specified.  */
        !          1427: #define WORD_REGISTER_OPERATIONS
        !          1428: 
        !          1429: /* Define if loading in MODE, an integral mode narrower than BITS_PER_WORD
        !          1430:    will either zero-extend or sign-extend.  The value of this macro should
        !          1431:    be the code that says which one of the two operations is implicitly
        !          1432:    done, NIL if none.  */
        !          1433: #define LOAD_EXTEND_OP(MODE) ZERO_EXTEND
        !          1434: 
        !          1435: /* Nonzero if access to memory by bytes is slow and undesirable.  */
        !          1436: #define SLOW_BYTE_ACCESS 1
        !          1437: 
        !          1438: /* Do not break .stabs pseudos into continuations.  */
        !          1439: #define DBX_CONTIN_LENGTH 0
        !          1440: 
        !          1441: /* Value is 1 if truncating an integer of INPREC bits to OUTPREC bits
        !          1442:    is done just by pretending it is already truncated.  */
        !          1443: #define TRULY_NOOP_TRUNCATION(OUTPREC, INPREC) 1
        !          1444: 
        !          1445: /* We assume that the store-condition-codes instructions store 0 for false
        !          1446:    and some other value for true.  This is the value stored for true.  */
        !          1447: 
        !          1448: #define STORE_FLAG_VALUE 1
        !          1449: 
        !          1450: /* When a prototype says `char' or `short', really pass an `int'.  */
        !          1451: #define PROMOTE_PROTOTYPES
        !          1452: 
        !          1453: /* Specify the machine mode that pointers have.
        !          1454:    After generation of rtl, the compiler makes no further distinction
        !          1455:    between pointers and any other objects of this machine mode.  */
        !          1456: #define Pmode SImode
        !          1457: 
        !          1458: /* Add any extra modes needed to represent the condition code.
        !          1459: 
        !          1460:    HPPA floating comparisons produce condition codes. */
        !          1461: #define EXTRA_CC_MODES CCFPmode
        !          1462: 
        !          1463: /* Define the names for the modes specified above.  */
        !          1464: #define EXTRA_CC_NAMES "CCFP"
        !          1465: 
        !          1466: /* Given a comparison code (EQ, NE, etc.) and the first operand of a COMPARE,
        !          1467:    return the mode to be used for the comparison.  For floating-point, CCFPmode
        !          1468:    should be used.  CC_NOOVmode should be used when the first operand is a
        !          1469:    PLUS, MINUS, or NEG.  CCmode should be used when no special processing is
        !          1470:    needed.  */
        !          1471: #define SELECT_CC_MODE(OP,X,Y) \
        !          1472:   (GET_MODE_CLASS (GET_MODE (X)) == MODE_FLOAT ? CCFPmode : CCmode)    \
        !          1473: 
        !          1474: /* A function address in a call instruction
        !          1475:    is a byte address (for indexing purposes)
        !          1476:    so give the MEM rtx a byte's mode.  */
        !          1477: #define FUNCTION_MODE SImode
        !          1478:   
        !          1479: /* Define this if addresses of constant functions
        !          1480:    shouldn't be put through pseudo regs where they can be cse'd.
        !          1481:    Desirable on machines where ordinary constants are expensive
        !          1482:    but a CALL with constant address is cheap.  */
        !          1483: #define NO_FUNCTION_CSE
        !          1484: 
        !          1485: /* Define this to be nonzero if shift instructions ignore all but the low-order
        !          1486:    few bits. */
        !          1487: #define SHIFT_COUNT_TRUNCATED 1
        !          1488: 
        !          1489: /* Use atexit for static constructors/destructors, instead of defining
        !          1490:    our own exit function.  */
        !          1491: #define HAVE_ATEXIT
        !          1492: 
        !          1493: /* Compute the cost of computing a constant rtl expression RTX
        !          1494:    whose rtx-code is CODE.  The body of this macro is a portion
        !          1495:    of a switch statement.  If the code is computed here,
        !          1496:    return it with a return statement.  Otherwise, break from the switch.  */
        !          1497: 
        !          1498: #define CONST_COSTS(RTX,CODE,OUTER_CODE) \
        !          1499:   case CONST_INT:                                              \
        !          1500:     if (INTVAL (RTX) == 0) return 0;                           \
        !          1501:     if (INT_14_BITS (RTX)) return 1;                           \
        !          1502:   case HIGH:                                                   \
        !          1503:     return 2;                                                  \
        !          1504:   case CONST:                                                  \
        !          1505:   case LABEL_REF:                                              \
        !          1506:   case SYMBOL_REF:                                             \
        !          1507:     return 4;                                                  \
        !          1508:   case CONST_DOUBLE:                                           \
        !          1509:     if (RTX == CONST0_RTX (DFmode) || RTX == CONST0_RTX (SFmode)\
        !          1510:        && OUTER_CODE != SET)                                   \
        !          1511:       return 0;                                                        \
        !          1512:     else                                                       \
        !          1513:       return 8;
        !          1514: 
        !          1515: #define ADDRESS_COST(RTX) \
        !          1516:   (GET_CODE (RTX) == REG ? 1 : hppa_address_cost (RTX))
        !          1517: 
        !          1518: /* Compute extra cost of moving data between one register class
        !          1519:    and another.
        !          1520: 
        !          1521:    Make moves from SAR so expensive they should never happen. Used to
        !          1522:    have 0xffff here but that generates an overflow in rare cases.
        !          1523: 
        !          1524:    Copies involving a FP register and a non-FP register are relatively 
        !          1525:    expensive because they must go through memory.
        !          1526: 
        !          1527:    Other copies are reasonably cheap.  */
        !          1528: #define REGISTER_MOVE_COST(CLASS1, CLASS2) \
        !          1529:  (CLASS1 == SHIFT_REGS ? 0x100                                 \
        !          1530:   : FP_REG_CLASS_P (CLASS1) && ! FP_REG_CLASS_P (CLASS2) ? 16  \
        !          1531:   : FP_REG_CLASS_P (CLASS2) && ! FP_REG_CLASS_P (CLASS1) ? 16  \
        !          1532:   : 2)
        !          1533: 
        !          1534: 
        !          1535: /* Provide the costs of a rtl expression.  This is in the body of a
        !          1536:    switch on CODE.  The purpose for the cost of MULT is to encourage
        !          1537:    `synth_mult' to find a synthetic multiply when reasonable.  */
        !          1538: 
        !          1539: #define RTX_COSTS(X,CODE,OUTER_CODE)                   \
        !          1540:   case MULT:                                           \
        !          1541:     return TARGET_SNAKE && ! TARGET_DISABLE_FPREGS     \
        !          1542:       ? COSTS_N_INSNS (8) : COSTS_N_INSNS (20);        \
        !          1543:   case DIV:                                            \
        !          1544:   case UDIV:                                           \
        !          1545:   case MOD:                                            \
        !          1546:   case UMOD:                                           \
        !          1547:     return COSTS_N_INSNS (60);                         \
        !          1548:   case PLUS: /* this includes shNadd insns */          \
        !          1549:     return COSTS_N_INSNS (1) + 2;
        !          1550: 
        !          1551: /* Adjust the cost of dependencies.  */
        !          1552: 
        !          1553: #define ADJUST_COST(INSN,LINK,DEP,COST) \
        !          1554:   (COST) = pa_adjust_cost (INSN, LINK, DEP, COST)
        !          1555: 
        !          1556: /* Handling the special cases is going to get too complicated for a macro,
        !          1557:    just call `pa_adjust_insn_length' to do the real work.  */
        !          1558: #define ADJUST_INSN_LENGTH(INSN, LENGTH)       \
        !          1559:   LENGTH += pa_adjust_insn_length (INSN, LENGTH);
        !          1560: 
        !          1561: /* Enable a bug fix.  (This is for extra caution.)  */
        !          1562: #define SHORTEN_WITH_ADJUST_INSN_LENGTH
        !          1563: 
        !          1564: /* Millicode insns are actually function calls with some special
        !          1565:    constraints on arguments and register usage.
        !          1566: 
        !          1567:    Millicode calls always expect their arguments in the integer argument
        !          1568:    registers, and always return their result in %r29 (ret1).  They
        !          1569:    are expected to clobber their arguments, %r1, %r29, and %r31 and
        !          1570:    nothing else.
        !          1571: 
        !          1572:    These macros tell reorg that the references to arguments and 
        !          1573:    register clobbers for millicode calls do not appear to happen 
        !          1574:    until after the millicode call.  This allows reorg to put insns
        !          1575:    which set the argument registers into the delay slot of the millicode
        !          1576:    call -- thus they act more like traditional CALL_INSNs.
        !          1577: 
        !          1578:    get_attr_type will try to recognize the given insn, so make sure to
        !          1579:    filter out things it will not accept -- SEQUENCE, USE and CLOBBER insns
        !          1580:    in particular.  */
        !          1581: #define INSN_SETS_ARE_DELAYED(X) \
        !          1582:   ((GET_CODE (X) == INSN                       \
        !          1583:     && GET_CODE (PATTERN (X)) != SEQUENCE      \
        !          1584:     && GET_CODE (PATTERN (X)) != USE           \
        !          1585:     && GET_CODE (PATTERN (X)) != CLOBBER       \
        !          1586:     && get_attr_type (X) == TYPE_MILLI))
        !          1587: 
        !          1588: #define INSN_REFERENCES_ARE_DELAYED(X) \
        !          1589:   ((GET_CODE (X) == INSN                       \
        !          1590:     && GET_CODE (PATTERN (X)) != SEQUENCE      \
        !          1591:     && GET_CODE (PATTERN (X)) != USE           \
        !          1592:     && GET_CODE (PATTERN (X)) != CLOBBER       \
        !          1593:     && get_attr_type (X) == TYPE_MILLI))       
        !          1594: 
        !          1595: 
        !          1596: /* Control the assembler format that we output.  */
        !          1597: 
        !          1598: /* Output at beginning of assembler file.  */
        !          1599: 
        !          1600: #define ASM_FILE_START(FILE) \
        !          1601: do { fprintf (FILE, "\t.SPACE $PRIVATE$\n\
        !          1602: \t.SUBSPA $DATA$,QUAD=1,ALIGN=8,ACCESS=31\n\
        !          1603: \t.SUBSPA $BSS$,QUAD=1,ALIGN=8,ACCESS=31,ZERO,SORT=82\n\
        !          1604: \t.SPACE $TEXT$\n\
        !          1605: \t.SUBSPA $LIT$,QUAD=0,ALIGN=8,ACCESS=44\n\
        !          1606: \t.SUBSPA $CODE$,QUAD=0,ALIGN=8,ACCESS=44,CODE_ONLY\n\
        !          1607: \t.IMPORT $global$,DATA\n\
        !          1608: \t.IMPORT $$dyncall,MILLICODE\n");\
        !          1609:      if (profile_flag)\
        !          1610:        fprintf (FILE, "\t.IMPORT _mcount, CODE\n");\
        !          1611:    } while (0)
        !          1612: 
        !          1613: /* Output to assembler file text saying following lines
        !          1614:    may contain character constants, extra white space, comments, etc.  */
        !          1615: 
        !          1616: #define ASM_APP_ON ""
        !          1617: 
        !          1618: /* Output to assembler file text saying following lines
        !          1619:    no longer contain unusual constructs.  */
        !          1620: 
        !          1621: #define ASM_APP_OFF ""
        !          1622: 
        !          1623: /* We don't yet know how to identify GCC to HP-PA machines.  */
        !          1624: #define ASM_IDENTIFY_GCC(FILE) fprintf (FILE, "; gcc_compiled.:\n")
        !          1625: 
        !          1626: /* Output before code.  */
        !          1627: 
        !          1628: /* Supposedly the assembler rejects the command if there is no tab!  */
        !          1629: #define TEXT_SECTION_ASM_OP "\t.SPACE $TEXT$\n\t.SUBSPA $CODE$"
        !          1630: 
        !          1631: /* Output before read-only data.  */
        !          1632: 
        !          1633: /* Supposedly the assembler rejects the command if there is no tab!  */
        !          1634: #define READONLY_DATA_ASM_OP "\t.SPACE $TEXT$\n\t.SUBSPA $LIT$"
        !          1635: 
        !          1636: #if 0
        !          1637: /* This has apparently triggered a latent GAS bug which manifests itself
        !          1638:    as numerous warnings from the debugger of the form:
        !          1639: 
        !          1640:    During symbol reading, inner block not inside outer block in ...
        !          1641:    inner block not inside outer block in ...
        !          1642: 
        !          1643:    Or as local variables not being accessable from the debugger.
        !          1644: 
        !          1645:    Disable $LIT$ for now.  Try it with GAS-2 when it is functional (I
        !          1646:    am not even going to try to fix this in GAS-1).  */
        !          1647: #define READONLY_DATA_SECTION readonly_data
        !          1648: #endif
        !          1649: 
        !          1650: /* Output before writable data.  */
        !          1651: 
        !          1652: /* Supposedly the assembler rejects the command if there is no tab!  */
        !          1653: #define DATA_SECTION_ASM_OP "\t.SPACE $PRIVATE$\n\t.SUBSPA $DATA$"
        !          1654: 
        !          1655: /* Output before uninitialized data.  */
        !          1656: 
        !          1657: #define BSS_SECTION_ASM_OP "\t.SPACE $PRIVATE$\n\t.SUBSPA $BSS$"
        !          1658: 
        !          1659: /* Define the .bss section for ASM_OUTPUT_LOCAL to use. */
        !          1660: 
        !          1661: #define EXTRA_SECTIONS in_bss, in_readonly_data
        !          1662: 
        !          1663: #define EXTRA_SECTION_FUNCTIONS                                                \
        !          1664: void                                                                   \
        !          1665: bss_section ()                                                         \
        !          1666: {                                                                      \
        !          1667:   if (in_section != in_bss)                                            \
        !          1668:     {                                                                  \
        !          1669:       fprintf (asm_out_file, "%s\n", BSS_SECTION_ASM_OP);              \
        !          1670:       in_section = in_bss;                                             \
        !          1671:     }                                                                  \
        !          1672: }                                                                      \
        !          1673: void                                                                   \
        !          1674: readonly_data ()                                                       \
        !          1675: {                                                                      \
        !          1676:   if (in_section != in_readonly_data)                                  \
        !          1677:     {                                                                  \
        !          1678:       fprintf (asm_out_file, "%s\n", READONLY_DATA_ASM_OP);            \
        !          1679:       in_section = in_readonly_data;                                   \
        !          1680:     }                                                                  \
        !          1681: }
        !          1682: 
        !          1683: 
        !          1684: /* How to refer to registers in assembler output.
        !          1685:    This sequence is indexed by compiler's hard-register-number (see above).  */
        !          1686: 
        !          1687: #define REGISTER_NAMES \
        !          1688: {"0", "%r1", "%r2", "%r3", "%r4", "%r5", "%r6", "%r7",                 \
        !          1689:  "%r8", "%r9", "%r10", "%r11", "%r12", "%r13", "%r14", "%r15",         \
        !          1690:  "%r16", "%r17", "%r18", "%r19", "%r20", "%r21", "%r22", "%r23",       \
        !          1691:  "%r24", "%r25", "%r26", "%r27", "%r28", "%r29", "%r30", "%r31",       \
        !          1692:  "%fr4", "%fr5", "%fr6", "%fr7",       \
        !          1693:  "%fr8", "%fr9", "%fr10", "%fr11", "%fr12", "%fr13", "%fr14", "%fr15", \
        !          1694:  "%fr4", "%fr4R", "%fr5", "%fr5R", "%fr6", "%fr6R", "%fr7", "%fr7R",   \
        !          1695:  "%fr8", "%fr8R", "%fr9", "%fr9R", "%fr10", "%fr10R", "%fr11", "%fr11R",\
        !          1696:  "%fr12", "%fr12R", "%fr13", "%fr13R", "%fr14", "%fr14R", "%fr15", "%fr15R",\
        !          1697:  "%fr16", "%fr16R", "%fr17", "%fr17R", "%fr18", "%fr18R", "%fr19", "%fr19R",\
        !          1698:  "%fr20", "%fr20R", "%fr21", "%fr21R", "%fr22", "%fr22R", "%fr23", "%fr23R",\
        !          1699:  "%fr24", "%fr24R", "%fr25", "%fr25R", "%fr26", "%fr26R", "%fr27", "%fr27R",\
        !          1700:  "%fr28", "%fr28R", "%fr29", "%fr29R", "%fr30", "%fr30R", "%fr31", "%fr31R",\
        !          1701:  "SAR"}
        !          1702: 
        !          1703: /* How to renumber registers for dbx and gdb.  */
        !          1704: 
        !          1705: #define DBX_REGISTER_NUMBER(REGNO) (REGNO)
        !          1706: 
        !          1707: /* This is how to output the definition of a user-level label named NAME,
        !          1708:    such as the label on a static function or variable NAME.  */
        !          1709: 
        !          1710: #define ASM_OUTPUT_LABEL(FILE, NAME)   \
        !          1711:   do { assemble_name (FILE, NAME);     \
        !          1712:        if (TARGET_GAS)                 \
        !          1713:         fputc (':', FILE);             \
        !          1714:        fputc ('\n', FILE); } while (0)
        !          1715: 
        !          1716: /* This is how to output a command to make the user-level label named NAME
        !          1717:    defined for reference from other files.  */
        !          1718: 
        !          1719: #define ASM_OUTPUT_EXTERNAL(FILE, DECL, NAME)  \
        !          1720:   do { fputs ("\t.IMPORT ", FILE);                             \
        !          1721:         assemble_name (FILE, NAME);                            \
        !          1722:        if (FUNCTION_NAME_P (NAME))                                     \
        !          1723:         fputs (",CODE\n", FILE);                               \
        !          1724:        else                                                    \
        !          1725:         fputs (",DATA\n", FILE);                               \
        !          1726:      } while (0)
        !          1727: 
        !          1728: /* hpux ld doesn't output the object file name, or anything useful at
        !          1729:    all, to indicate the start of an object file's symbols. This screws
        !          1730:    up gdb, so we'll output this magic cookie at the end of an object
        !          1731:    file with debugging symbols */
        !          1732: 
        !          1733: #define ASM_FILE_END(FILE) \
        !          1734:   do { if (write_symbols == DBX_DEBUG)\
        !          1735:         { fputs (TEXT_SECTION_ASM_OP, FILE);\
        !          1736:           fputs ("\n\t.stabs \"end_file.\",4,0,0,Ltext_end\nLtext_end:\n",\
        !          1737:                  (FILE));\
        !          1738:         }\
        !          1739:      } while (0)
        !          1740: 
        !          1741: /* The bogus HP assembler requires ALL external references to be 
        !          1742:    "imported", even library calls. They look a bit different, so
        !          1743:    here's this macro. */
        !          1744: 
        !          1745: #define ASM_OUTPUT_EXTERNAL_LIBCALL(FILE, RTL) \
        !          1746:   do { fputs ("\t.IMPORT ", FILE);                                     \
        !          1747:        assemble_name (FILE, XSTR ((RTL), 0));                          \
        !          1748:        fputs (",CODE\n", FILE);                                                \
        !          1749:      } while (0)
        !          1750: 
        !          1751: #define ASM_GLOBALIZE_LABEL(FILE, NAME)                                        \
        !          1752:   do { fputs ("\t.EXPORT ", FILE); assemble_name (FILE, NAME);         \
        !          1753:        if (FUNCTION_NAME_P (NAME))                                     \
        !          1754:         fputs (",CODE\n", FILE);                                       \
        !          1755:        else                                                            \
        !          1756:         fputs (",DATA\n", FILE);} while (0)
        !          1757: 
        !          1758: /* This is how to output a reference to a user-level label named NAME.
        !          1759:    `assemble_name' uses this.  */
        !          1760: 
        !          1761: #define ASM_OUTPUT_LABELREF(FILE,NAME) \
        !          1762:   fprintf ((FILE), "%s", (NAME) + (FUNCTION_NAME_P (NAME) ? 1 : 0))
        !          1763: 
        !          1764: /* This is how to output an internal numbered label where
        !          1765:    PREFIX is the class of label and NUM is the number within the class.  */
        !          1766: 
        !          1767: #define ASM_OUTPUT_INTERNAL_LABEL(FILE,PREFIX,NUM)     \
        !          1768:   {fprintf (FILE, "%s$%04d", PREFIX, NUM);             \
        !          1769:    if (TARGET_GAS)                                     \
        !          1770:      fputs (":\n", FILE);                              \
        !          1771:    else                                                        \
        !          1772:      fputs ("\n", FILE);}
        !          1773: 
        !          1774: #define STRING_SECTION_NAME "STRING"
        !          1775: 
        !          1776: /* This is how to store into the string LABEL
        !          1777:    the symbol_ref name of an internal numbered label where
        !          1778:    PREFIX is the class of label and NUM is the number within the class.
        !          1779:    This is suitable for output with `assemble_name'.  */
        !          1780: 
        !          1781: #define ASM_GENERATE_INTERNAL_LABEL(LABEL,PREFIX,NUM)  \
        !          1782:   sprintf (LABEL, "*%s$%04d", PREFIX, NUM)
        !          1783: 
        !          1784: /* This is how to output an assembler line defining a `double' constant.  */
        !          1785: 
        !          1786: #define ASM_OUTPUT_DOUBLE(FILE,VALUE)  \
        !          1787:   do { union { double d; int i[2];} __u;       \
        !          1788:     __u.d = (VALUE);                           \
        !          1789:     fprintf (FILE, "\t; .double %.20e\n\t.word %d ; = 0x%x\n\t.word %d ; = 0x%x\n",    \
        !          1790:             __u.d, __u.i[0], __u.i[0], __u.i[1], __u.i[1]);    \
        !          1791:   } while (0)
        !          1792: 
        !          1793: /* This is how to output an assembler line defining a `float' constant.  */
        !          1794: 
        !          1795: #define ASM_OUTPUT_FLOAT(FILE,VALUE)  \
        !          1796:   do { union { float f; int i;} __u;           \
        !          1797:     __u.f = (VALUE);                           \
        !          1798:     fprintf (FILE, "\t; .float %.12e\n\t.word %d ; = 0x%x\n", __u.f, __u.i, __u.i); \
        !          1799:   } while (0)
        !          1800: 
        !          1801: /* This is how to output an assembler line defining an `int' constant.  */
        !          1802: 
        !          1803: #define ASM_OUTPUT_INT(FILE,VALUE)  \
        !          1804: { fprintf (FILE, "\t.word ");                  \
        !          1805:   if (function_label_operand (VALUE, VOIDmode))        \
        !          1806:     fprintf (FILE, "P%%");                     \
        !          1807:   output_addr_const (FILE, (VALUE));           \
        !          1808:   fprintf (FILE, "\n");}
        !          1809: 
        !          1810: /* Likewise for `short' and `char' constants.  */
        !          1811: 
        !          1812: #define ASM_OUTPUT_SHORT(FILE,VALUE)  \
        !          1813: ( fprintf (FILE, "\t.half "),                  \
        !          1814:   output_addr_const (FILE, (VALUE)),           \
        !          1815:   fprintf (FILE, "\n"))
        !          1816: 
        !          1817: #define ASM_OUTPUT_CHAR(FILE,VALUE)  \
        !          1818: ( fprintf (FILE, "\t.byte "),                  \
        !          1819:   output_addr_const (FILE, (VALUE)),           \
        !          1820:   fprintf (FILE, "\n"))
        !          1821: 
        !          1822: /* This is how to output an assembler line for a numeric constant byte.  */
        !          1823: 
        !          1824: #define ASM_OUTPUT_BYTE(FILE,VALUE)  \
        !          1825:   fprintf (FILE, "\t.byte 0x%x\n", (VALUE))
        !          1826: 
        !          1827: #define ASM_OUTPUT_ASCII(FILE, P, SIZE)  \
        !          1828:   output_ascii ((FILE), (P), (SIZE))
        !          1829: 
        !          1830: #define ASM_OUTPUT_REG_PUSH(FILE,REGNO)
        !          1831: #define ASM_OUTPUT_REG_POP(FILE,REGNO) 
        !          1832: /* This is how to output an element of a case-vector that is absolute.
        !          1833:    Note that this method makes filling these branch delay slots
        !          1834:    impossible.  */
        !          1835: 
        !          1836: #define ASM_OUTPUT_ADDR_VEC_ELT(FILE, VALUE)  \
        !          1837:   fprintf (FILE, "\tb L$%04d\n\tnop\n", VALUE)
        !          1838: 
        !          1839: /* Jump tables are executable code and live in the TEXT section on the PA.  */
        !          1840: #define JUMP_TABLES_IN_TEXT_SECTION
        !          1841: 
        !          1842: /* This is how to output an element of a case-vector that is relative.
        !          1843:    (The HP-PA does not use such vectors,
        !          1844:    but we must define this macro anyway.)  */
        !          1845: 
        !          1846: #define ASM_OUTPUT_ADDR_DIFF_ELT(FILE, VALUE, REL)  \
        !          1847:   fprintf (FILE, "\tword L%d-L%d\n", VALUE, REL)
        !          1848: 
        !          1849: /* This is how to output an assembler line
        !          1850:    that says to advance the location counter
        !          1851:    to a multiple of 2**LOG bytes.  */
        !          1852: 
        !          1853: #define ASM_OUTPUT_ALIGN(FILE,LOG)     \
        !          1854:     fprintf (FILE, "\t.align %d\n", (1<<(LOG)))
        !          1855: 
        !          1856: #define ASM_OUTPUT_SKIP(FILE,SIZE)  \
        !          1857:   fprintf (FILE, "\t.blockz %d\n", (SIZE))
        !          1858: 
        !          1859: /* This says how to output an assembler line
        !          1860:    to define a global common symbol.  */
        !          1861: 
        !          1862: /* Supposedly the assembler rejects the command if there is no tab!  */
        !          1863: 
        !          1864: 
        !          1865: #define ASM_OUTPUT_COMMON(FILE, NAME, SIZE, ROUNDED)  \
        !          1866: { bss_section ();                                      \
        !          1867:   assemble_name ((FILE), (NAME));                      \
        !          1868:   if (TARGET_GAS)                                      \
        !          1869:     fputc (':', (FILE));                               \
        !          1870:   fputs ("\t.comm ", (FILE));                          \
        !          1871:   fprintf ((FILE), "%d\n", (ROUNDED));}
        !          1872: 
        !          1873: /* This says how to output an assembler line
        !          1874:    to define a local common symbol.  */
        !          1875: 
        !          1876: #define ASM_OUTPUT_LOCAL(FILE, NAME, SIZE, ROUNDED)  \
        !          1877: { bss_section ();                                              \
        !          1878:   fprintf ((FILE), "\t.align %d\n", (SIZE) <= 4 ? 4 : 8);      \
        !          1879:   assemble_name ((FILE), (NAME));                              \
        !          1880:   if (TARGET_GAS)                                      \
        !          1881:     fputc (':', (FILE));                               \
        !          1882:   fprintf ((FILE), "\n\t.block %d\n", (ROUNDED));}
        !          1883: 
        !          1884: /* Store in OUTPUT a string (made with alloca) containing
        !          1885:    an assembler-name for a local static variable named NAME.
        !          1886:    LABELNO is an integer which is different for each call.  */
        !          1887: 
        !          1888: #define ASM_FORMAT_PRIVATE_NAME(OUTPUT, NAME, LABELNO) \
        !          1889: ( (OUTPUT) = (char *) alloca (strlen ((NAME)) + 12),   \
        !          1890:   sprintf ((OUTPUT), "%s___%d", (NAME), (LABELNO)))
        !          1891: 
        !          1892: /* Define the parentheses used to group arithmetic operations
        !          1893:    in assembler code.  */
        !          1894: 
        !          1895: #define ASM_OPEN_PAREN "("
        !          1896: #define ASM_CLOSE_PAREN ")"
        !          1897: 
        !          1898: /* Define results of standard character escape sequences.  */
        !          1899: #define TARGET_BELL 007
        !          1900: #define TARGET_BS 010
        !          1901: #define TARGET_TAB 011
        !          1902: #define TARGET_NEWLINE 012
        !          1903: #define TARGET_VT 013
        !          1904: #define TARGET_FF 014
        !          1905: #define TARGET_CR 015
        !          1906: 
        !          1907: #define PRINT_OPERAND_PUNCT_VALID_P(CHAR) \
        !          1908:   ((CHAR) == '@' || (CHAR) == '#' || (CHAR) == '*' \
        !          1909:    || (CHAR) == '^' || (CHAR) == '\'')
        !          1910: 
        !          1911: /* Print operand X (an rtx) in assembler syntax to file FILE.
        !          1912:    CODE is a letter or dot (`z' in `%z0') or 0 if no letter was specified.
        !          1913:    For `%' followed by punctuation, CODE is the punctuation and X is null.
        !          1914: 
        !          1915:    On the HP-PA, the CODE can be `r', meaning this is a register-only operand
        !          1916:    and an immediate zero should be represented as `r0'.
        !          1917: 
        !          1918:    Several % codes are defined:
        !          1919:    O an operation
        !          1920:    C compare conditions
        !          1921:    N extract conditions
        !          1922:    M modifier to handle preincrement addressing for memory refs.
        !          1923:    F modifier to handle preincrement addressing for fp memory refs */
        !          1924: 
        !          1925: #define PRINT_OPERAND(FILE, X, CODE) print_operand (FILE, X, CODE)
        !          1926: 
        !          1927: 
        !          1928: /* Print a memory address as an operand to reference that memory location.  */
        !          1929: 
        !          1930: #define PRINT_OPERAND_ADDRESS(FILE, ADDR)  \
        !          1931: { register rtx addr = ADDR;                                            \
        !          1932:   register rtx base;                                                   \
        !          1933:   int offset;                                                          \
        !          1934:   switch (GET_CODE (addr))                                             \
        !          1935:     {                                                                  \
        !          1936:     case REG:                                                          \
        !          1937:       fprintf (FILE, "0(0,%s)", reg_names [REGNO (addr)]);             \
        !          1938:       break;                                                           \
        !          1939:     case PLUS:                                                         \
        !          1940:       if (GET_CODE (XEXP (addr, 0)) == CONST_INT)                      \
        !          1941:        offset = INTVAL (XEXP (addr, 0)), base = XEXP (addr, 1);        \
        !          1942:       else if (GET_CODE (XEXP (addr, 1)) == CONST_INT)                 \
        !          1943:        offset = INTVAL (XEXP (addr, 1)), base = XEXP (addr, 0);        \
        !          1944:       else                                                             \
        !          1945:        abort ();                                                       \
        !          1946:       fprintf (FILE, "%d(0,%s)", offset, reg_names [REGNO (base)]);    \
        !          1947:       break;                                                           \
        !          1948:     case LO_SUM:                                                       \
        !          1949:       fprintf (FILE, "R%c", PA_QUOTE);                                 \
        !          1950:       output_global_address (FILE, XEXP (addr, 1));                    \
        !          1951:       fputs ("(", FILE);                                               \
        !          1952:       output_operand (XEXP (addr, 0), 0);                              \
        !          1953:       fputs (")", FILE);                                               \
        !          1954:       break;                                                           \
        !          1955:     case CONST_INT:                                                    \
        !          1956:       fprintf (FILE, "%d(0,0)", INTVAL (addr));                                \
        !          1957:       break;                                                           \
        !          1958:     default:                                                           \
        !          1959:       output_addr_const (FILE, addr);                                  \
        !          1960:     }}
        !          1961: 
        !          1962: 
        !          1963: /* Define functions in pa.c and used in insn-output.c.  */
        !          1964: 
        !          1965: extern char *output_and ();
        !          1966: extern char *output_ior ();
        !          1967: extern char *output_move_double ();
        !          1968: extern char *output_fp_move_double ();
        !          1969: extern char *output_block_move ();
        !          1970: extern char *output_scc_insn ();
        !          1971: extern char *output_cbranch ();
        !          1972: extern char *output_bb ();
        !          1973: extern char *output_dbra ();
        !          1974: extern char *output_movb ();
        !          1975: extern char *output_return ();
        !          1976: extern char *output_call ();
        !          1977: extern char *output_floatsisf2 ();
        !          1978: extern char *output_floatsidf2 ();
        !          1979: extern char *output_mul_insn ();
        !          1980: extern char *output_div_insn ();
        !          1981: extern char *output_mod_insn ();
        !          1982: extern char *singlemove_string ();
        !          1983: extern void output_arg_descriptor ();
        !          1984: extern void output_global_address ();
        !          1985: extern struct rtx_def *legitimize_pic_address ();
        !          1986: extern struct rtx_def *gen_cmp_fp ();
        !          1987: extern void hppa_encode_label ();
        !          1988: 
        !          1989: extern struct rtx_def *hppa_save_pic_table_rtx;

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