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Annotation of GNUtools/cc/config/sparc/sparc.h, revision 1.1

1.1     ! root        1: /* Definitions of target machine for GNU compiler, for Sun SPARC.
        !             2:    Copyright (C) 1987, 1988, 1989, 1992 Free Software Foundation, Inc.
        !             3:    Contributed by Michael Tiemann ([email protected]).
        !             4: 
        !             5: This file is part of GNU CC.
        !             6: 
        !             7: GNU CC is free software; you can redistribute it and/or modify
        !             8: it under the terms of the GNU General Public License as published by
        !             9: the Free Software Foundation; either version 2, or (at your option)
        !            10: any later version.
        !            11: 
        !            12: GNU CC is distributed in the hope that it will be useful,
        !            13: but WITHOUT ANY WARRANTY; without even the implied warranty of
        !            14: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
        !            15: GNU General Public License for more details.
        !            16: 
        !            17: You should have received a copy of the GNU General Public License
        !            18: along with GNU CC; see the file COPYING.  If not, write to
        !            19: the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
        !            20: 
        !            21: /* Note that some other tm.h files include this one and then override
        !            22:    many of the definitions that relate to assembler syntax.  */
        !            23: 
        !            24: #define LIB_SPEC "%{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p} %{g:-lg} \
        !            25:   %{a:/usr/lib/bb_link.o}"
        !            26: 
        !            27: /* Provide required defaults for linker -e and -d switches.  */
        !            28: 
        !            29: #define LINK_SPEC \
        !            30:  "%{!nostdlib:%{!r*:%{!e*:-e start}}} -dc -dp %{static:-Bstatic} %{assert*}"
        !            31: 
        !            32: /* Special flags to the Sun-4 assembler when using pipe for input.  */
        !            33: 
        !            34: #define ASM_SPEC " %| %{fpic:-k} %{fPIC:-k}"
        !            35: 
        !            36: /* Define macros to distinguish architectures.  */
        !            37: #define CPP_SPEC "%{msparclite:-D__sparclite__} %{mf930:-D__sparclite__} \
        !            38: %{mf934:-D__sparclite__} %{mv8:-D__sparc_v8__}"
        !            39: 
        !            40: /* Prevent error on `-sun4' and `-target sun4' options.  */
        !            41: /* This used to translate -dalign to -malign, but that is no good
        !            42:    because it can't turn off the usual meaning of making debugging dumps.  */
        !            43: 
        !            44: #define CC1_SPEC "%{sun4:} %{target:}"
        !            45: 
        !            46: #define PTRDIFF_TYPE "int"
        !            47: /* In 2.4 it should work to delete this.
        !            48:    #define SIZE_TYPE "int"  */
        !            49: #define WCHAR_TYPE "short unsigned int"
        !            50: #define WCHAR_TYPE_SIZE 16
        !            51: 
        !            52: /* Omit frame pointer at high optimization levels.  */
        !            53:   
        !            54: #define OPTIMIZATION_OPTIONS(OPTIMIZE) \
        !            55: {                                                              \
        !            56:   if (OPTIMIZE >= 2)                                           \
        !            57:     {                                                          \
        !            58:       flag_omit_frame_pointer = 1;                             \
        !            59:     }                                                          \
        !            60: }
        !            61: 
        !            62: /* To make profiling work with -f{pic,PIC}, we need to emit the profiling
        !            63:    code into the rtl.  Also, if we are profiling, we cannot eliminate
        !            64:    the frame pointer (because the return address will get smashed).  */
        !            65: 
        !            66: #define OVERRIDE_OPTIONS \
        !            67: {                                              \
        !            68:   if (profile_flag || profile_block_flag)      \
        !            69:     flag_omit_frame_pointer = 0, flag_pic = 0; \
        !            70:   SUBTARGET_OVERRIDE_OPTIONS                   \
        !            71:   }
        !            72: 
        !            73: /* This is meant to be redefined in the host dependent files */
        !            74: #define SUBTARGET_OVERRIDE_OPTIONS
        !            75: 
        !            76: /* These compiler options take an argument.  We ignore -target for now.  */
        !            77: 
        !            78: #define WORD_SWITCH_TAKES_ARG(STR)                             \
        !            79:  (DEFAULT_WORD_SWITCH_TAKES_ARG (STR)                          \
        !            80:   || !strcmp (STR, "target") || !strcmp (STR, "assert"))
        !            81: 
        !            82: /* Names to predefine in the preprocessor for this target machine.  */
        !            83: 
        !            84: /* The GCC_NEW_VARARGS macro is so that old versions of gcc can compile
        !            85:    new versions, which have an incompatible va-sparc.h file.  This matters
        !            86:    because gcc does "gvarargs.h" instead of <varargs.h>, and thus gets the
        !            87:    wrong varargs file when it is compiled with a different version of gcc.  */
        !            88: 
        !            89: #define CPP_PREDEFINES \
        !            90:   "-Dsparc -Dsun -Dunix -D__GCC_NEW_VARARGS__ \
        !            91:    -Asystem(unix) -Asystem(bsd) -Acpu(sparc) -Amachine(sparc)"
        !            92: 
        !            93: /* Print subsidiary information on the compiler version in use.  */
        !            94: 
        !            95: #define TARGET_VERSION fprintf (stderr, " (sparc)");
        !            96: 
        !            97: /* Generate DBX debugging information.  */
        !            98: 
        !            99: #define DBX_DEBUGGING_INFO
        !           100: 
        !           101: /* Run-time compilation parameters selecting different hardware subsets.  */
        !           102: 
        !           103: extern int target_flags;
        !           104: 
        !           105: /* Nonzero if we should generate code to use the fpu.  */
        !           106: #define TARGET_FPU (target_flags & 1)
        !           107: 
        !           108: /* Nonzero if we should use FUNCTION_EPILOGUE.  Otherwise, we
        !           109:    use fast return insns, but lose some generality.  */
        !           110: #define TARGET_EPILOGUE (target_flags & 2)
        !           111: 
        !           112: /* Nonzero if we should assume that double pointers might be unaligned.
        !           113:    This can happen when linking gcc compiled code with other compilers,
        !           114:    because the ABI only guarantees 4 byte alignment.  */
        !           115: #define TARGET_UNALIGNED_DOUBLES (target_flags & 4)
        !           116: 
        !           117: /* Nonzero means that we should generate code for a v8 sparc.  */
        !           118: #define TARGET_V8 (target_flags & 64)
        !           119: 
        !           120: /* Nonzero means that we should generate code for a sparclite.
        !           121:    This enables the sparclite specific instructions, but does not affect
        !           122:    whether FPU instructions are emitted.  */
        !           123: #define TARGET_SPARCLITE (target_flags & 128)
        !           124: 
        !           125: /* Nonzero means that we should generate code using a flat register window
        !           126:    model, i.e. no save/restore instructions are generated, in the most
        !           127:    efficient manner.  This code is not compatible with normal sparc code.  */
        !           128: /* This is not a user selectable option yet, because it requires changes
        !           129:    that are not yet switchable via command line arguments.  */
        !           130: #define TARGET_FRW (target_flags & 256)
        !           131: 
        !           132: /* Nonzero means that we should generate code using a flat register window
        !           133:    model, i.e. no save/restore instructions are generated, but which is
        !           134:    compatible with normal sparc code.   This is the same as above, except
        !           135:    that the frame pointer is %l6 instead of %fp.  This code is not as efficient
        !           136:    as TARGET_FRW, because it has one less allocatable register.  */
        !           137: /* This is not a user selectable option yet, because it requires changes
        !           138:    that are not yet switchable via command line arguments.  */
        !           139: #define TARGET_FRW_COMPAT (target_flags & 512)
        !           140: 
        !           141: /* Macro to define tables used to set the flags.
        !           142:    This is a list in braces of pairs in braces,
        !           143:    each pair being { "NAME", VALUE }
        !           144:    where VALUE is the bits to set or minus the bits to clear.
        !           145:    An empty string NAME is used to identify the default VALUE.  */
        !           146: 
        !           147: /* The Fujitsu MB86930 is the original sparclite chip, with no fpu.
        !           148:    The Fujitsu MB86934 is the recent sparclite chip, with an fup.
        !           149:    We use -mf930 and -mf934 options to choose which.
        !           150:    ??? These should perhaps be -mcpu= options.  */
        !           151: 
        !           152: #define TARGET_SWITCHES  \
        !           153:   { {"fpu", 1},                        \
        !           154:     {"no-fpu", -1},            \
        !           155:     {"hard-float", 1},         \
        !           156:     {"soft-float", -1},                \
        !           157:     {"epilogue", 2},           \
        !           158:     {"no-epilogue", -2},       \
        !           159:     {"unaligned-doubles", 4},  \
        !           160:     {"no-unaligned-doubles", -4},\
        !           161:     {"v8", 64},                        \
        !           162:     {"no-v8", -64},            \
        !           163:     {"sparclite", 128},                \
        !           164:     {"no-sparclite", -128},    \
        !           165: /*  {"frw", 256}, */           \
        !           166: /*  {"no-frw", -256}, */       \
        !           167: /*  {"frw-compat", 256+512}, */        \
        !           168: /*  {"no-frw-compat", -(256+512)}, */ \
        !           169:     {"f930", 128},             \
        !           170:     {"f930", -1},              \
        !           171:     {"f934", 128},             \
        !           172:     SUBTARGET_SWITCHES         \
        !           173:     { "", TARGET_DEFAULT}}
        !           174: 
        !           175: #define TARGET_DEFAULT 3
        !           176: 
        !           177: /* This is meant to be redefined in the host dependent files */
        !           178: #define SUBTARGET_SWITCHES
        !           179: 
        !           180: /* target machine storage layout */
        !           181: 
        !           182: #if 0
        !           183: /* ??? This does not work in SunOS 4.x, so it is not enabled here.
        !           184:    Instead, it is enabled in sol2.h, because it does work under Solaris.  */
        !           185: /* Define for support of TFmode long double and REAL_ARITHMETIC.
        !           186:    Sparc ABI says that long double is 4 words.  */
        !           187: #define LONG_DOUBLE_TYPE_SIZE 128
        !           188: #endif
        !           189: 
        !           190: /* Define for cross-compilation to a sparc target with no TFmode from a host
        !           191:    with a different float format (e.g. VAX).  */
        !           192: #define REAL_ARITHMETIC
        !           193: 
        !           194: /* Define this if most significant bit is lowest numbered
        !           195:    in instructions that operate on numbered bit-fields.  */
        !           196: #define BITS_BIG_ENDIAN 1
        !           197: 
        !           198: /* Define this if most significant byte of a word is the lowest numbered.  */
        !           199: /* This is true on the SPARC.  */
        !           200: #define BYTES_BIG_ENDIAN 1
        !           201: 
        !           202: /* Define this if most significant word of a multiword number is the lowest
        !           203:    numbered.  */
        !           204: /* Doubles are stored in memory with the high order word first.  This
        !           205:    matters when cross-compiling.  */
        !           206: #define WORDS_BIG_ENDIAN 1
        !           207: 
        !           208: /* number of bits in an addressable storage unit */
        !           209: #define BITS_PER_UNIT 8
        !           210: 
        !           211: /* Width in bits of a "word", which is the contents of a machine register.
        !           212:    Note that this is not necessarily the width of data type `int';
        !           213:    if using 16-bit ints on a 68000, this would still be 32.
        !           214:    But on a machine with 16-bit registers, this would be 16.  */
        !           215: #define BITS_PER_WORD 32
        !           216: #define MAX_BITS_PER_WORD 32
        !           217: 
        !           218: /* Width of a word, in units (bytes).  */
        !           219: #define UNITS_PER_WORD 4
        !           220: 
        !           221: /* Width in bits of a pointer.
        !           222:    See also the macro `Pmode' defined below.  */
        !           223: #define POINTER_SIZE 32
        !           224: 
        !           225: /* Allocation boundary (in *bits*) for storing arguments in argument list.  */
        !           226: #define PARM_BOUNDARY 32
        !           227: 
        !           228: /* Boundary (in *bits*) on which stack pointer should be aligned.  */
        !           229: #define STACK_BOUNDARY 64
        !           230: 
        !           231: /* ALIGN FRAMES on double word boundaries */
        !           232: 
        !           233: #define SPARC_STACK_ALIGN(LOC) (((LOC)+7) & 0xfffffff8)
        !           234: 
        !           235: /* Allocation boundary (in *bits*) for the code of a function.  */
        !           236: #define FUNCTION_BOUNDARY 32
        !           237: 
        !           238: /* Alignment of field after `int : 0' in a structure.  */
        !           239: #define EMPTY_FIELD_BOUNDARY 32
        !           240: 
        !           241: /* Every structure's size must be a multiple of this.  */
        !           242: #define STRUCTURE_SIZE_BOUNDARY 8
        !           243: 
        !           244: /* A bitfield declared as `int' forces `int' alignment for the struct.  */
        !           245: #define PCC_BITFIELD_TYPE_MATTERS 1
        !           246: 
        !           247: /* No data type wants to be aligned rounder than this.  */
        !           248: #define BIGGEST_ALIGNMENT 64
        !           249: 
        !           250: /* The best alignment to use in cases where we have a choice.  */
        !           251: #define FASTEST_ALIGNMENT 64
        !           252: 
        !           253: /* Make strings word-aligned so strcpy from constants will be faster.  */
        !           254: #define CONSTANT_ALIGNMENT(EXP, ALIGN)  \
        !           255:   ((TREE_CODE (EXP) == STRING_CST      \
        !           256:     && (ALIGN) < FASTEST_ALIGNMENT)    \
        !           257:    ? FASTEST_ALIGNMENT : (ALIGN))
        !           258: 
        !           259: /* Make arrays of chars word-aligned for the same reasons.  */
        !           260: #define DATA_ALIGNMENT(TYPE, ALIGN)            \
        !           261:   (TREE_CODE (TYPE) == ARRAY_TYPE              \
        !           262:    && TYPE_MODE (TREE_TYPE (TYPE)) == QImode   \
        !           263:    && (ALIGN) < FASTEST_ALIGNMENT ? FASTEST_ALIGNMENT : (ALIGN))
        !           264: 
        !           265: /* Set this nonzero if move instructions will actually fail to work
        !           266:    when given unaligned data.  */
        !           267: #define STRICT_ALIGNMENT 1
        !           268: 
        !           269: /* Things that must be doubleword aligned cannot go in the text section,
        !           270:    because the linker fails to align the text section enough!
        !           271:    Put them in the data section.  */
        !           272: #define MAX_TEXT_ALIGN 32
        !           273: 
        !           274: #define SELECT_SECTION(T,RELOC)                                                \
        !           275: {                                                                      \
        !           276:   if (TREE_CODE (T) == VAR_DECL)                                       \
        !           277:     {                                                                  \
        !           278:       if (TREE_READONLY (T) && ! TREE_SIDE_EFFECTS (T)                 \
        !           279:          && DECL_ALIGN (T) <= MAX_TEXT_ALIGN                           \
        !           280:          && ! (flag_pic && (RELOC)))                                   \
        !           281:        text_section ();                                                \
        !           282:       else                                                             \
        !           283:        data_section ();                                                \
        !           284:     }                                                                  \
        !           285:   else if (TREE_CODE (T) == CONSTRUCTOR)                               \
        !           286:     {                                                                  \
        !           287:       if (flag_pic != 0 && (RELOC) != 0)                               \
        !           288:        data_section ();                                                \
        !           289:     }                                                                  \
        !           290:   else if (*tree_code_type[(int) TREE_CODE (T)] == 'c')                        \
        !           291:     {                                                                  \
        !           292:       if ((TREE_CODE (T) == STRING_CST && flag_writable_strings)       \
        !           293:          || TYPE_ALIGN (TREE_TYPE (T)) > MAX_TEXT_ALIGN)               \
        !           294:        data_section ();                                                \
        !           295:       else                                                             \
        !           296:        text_section ();                                                \
        !           297:     }                                                                  \
        !           298: }
        !           299: 
        !           300: /* Use text section for a constant
        !           301:    unless we need more alignment than that offers.  */
        !           302: #define SELECT_RTX_SECTION(MODE, X)            \
        !           303: {                                              \
        !           304:   if (GET_MODE_BITSIZE (MODE) <= MAX_TEXT_ALIGN \
        !           305:       && ! (flag_pic && symbolic_operand (X)))  \
        !           306:     text_section ();                           \
        !           307:   else                                         \
        !           308:     data_section ();                           \
        !           309: }
        !           310: 
        !           311: /* Standard register usage.  */
        !           312: 
        !           313: /* Number of actual hardware registers.
        !           314:    The hardware registers are assigned numbers for the compiler
        !           315:    from 0 to just below FIRST_PSEUDO_REGISTER.
        !           316:    All registers that the compiler knows about must be given numbers,
        !           317:    even those that are not normally considered general registers.
        !           318: 
        !           319:    SPARC has 32 integer registers and 32 floating point registers.  */
        !           320: 
        !           321: #define FIRST_PSEUDO_REGISTER 64
        !           322: 
        !           323: /* 1 for registers that have pervasive standard uses
        !           324:    and are not available for the register allocator.
        !           325:    g0 is used for the condition code and not to represent %g0, which is
        !           326:    hardwired to 0, so reg 0 is *not* fixed.
        !           327:    g1 through g4 are free to use as temporaries.
        !           328:    g5 through g7 are reserved for the operating system.  */
        !           329: #define FIXED_REGISTERS  \
        !           330:  {0, 0, 0, 0, 0, 1, 1, 1,      \
        !           331:   0, 0, 0, 0, 0, 0, 1, 0,      \
        !           332:   0, 0, 0, 0, 0, 0, 0, 0,      \
        !           333:   0, 0, 0, 0, 0, 0, 1, 1,      \
        !           334:                                \
        !           335:   0, 0, 0, 0, 0, 0, 0, 0,      \
        !           336:   0, 0, 0, 0, 0, 0, 0, 0,      \
        !           337:   0, 0, 0, 0, 0, 0, 0, 0,      \
        !           338:   0, 0, 0, 0, 0, 0, 0, 0}
        !           339: 
        !           340: /* 1 for registers not available across function calls.
        !           341:    These must include the FIXED_REGISTERS and also any
        !           342:    registers that can be used without being saved.
        !           343:    The latter must include the registers where values are returned
        !           344:    and the register where structure-value addresses are passed.
        !           345:    Aside from that, you can include as many other registers as you like.  */
        !           346: #define CALL_USED_REGISTERS  \
        !           347:  {1, 1, 1, 1, 1, 1, 1, 1,      \
        !           348:   1, 1, 1, 1, 1, 1, 1, 1,      \
        !           349:   0, 0, 0, 0, 0, 0, 0, 0,      \
        !           350:   0, 0, 0, 0, 0, 0, 1, 1,      \
        !           351:                                \
        !           352:   1, 1, 1, 1, 1, 1, 1, 1,      \
        !           353:   1, 1, 1, 1, 1, 1, 1, 1,      \
        !           354:   1, 1, 1, 1, 1, 1, 1, 1,      \
        !           355:   1, 1, 1, 1, 1, 1, 1, 1}
        !           356: 
        !           357: /* If !TARGET_FPU, then make the fp registers fixed so that they won't
        !           358:    be allocated.  */
        !           359: 
        !           360: #define CONDITIONAL_REGISTER_USAGE                             \
        !           361: do                                                             \
        !           362:   {                                                            \
        !           363:     if (! TARGET_FPU)                                          \
        !           364:       {                                                                \
        !           365:        int regno;                                              \
        !           366:        for (regno = 32; regno < 64; regno++)                   \
        !           367:          fixed_regs[regno] = 1;                                \
        !           368:       }                                                                \
        !           369:   }                                                            \
        !           370: while (0)
        !           371: 
        !           372: /* Return number of consecutive hard regs needed starting at reg REGNO
        !           373:    to hold something of mode MODE.
        !           374:    This is ordinarily the length in words of a value of mode MODE
        !           375:    but can be less for certain modes in special long registers.
        !           376: 
        !           377:    On SPARC, ordinary registers hold 32 bits worth;
        !           378:    this means both integer and floating point registers.
        !           379: 
        !           380:    We use vectors to keep this information about registers.  */
        !           381: 
        !           382: /* How many hard registers it takes to make a register of this mode.  */
        !           383: extern int hard_regno_nregs[];
        !           384: 
        !           385: #define HARD_REGNO_NREGS(REGNO, MODE)   \
        !           386:   ((GET_MODE_SIZE (MODE) + UNITS_PER_WORD - 1) / UNITS_PER_WORD)
        !           387: 
        !           388: /* Value is 1 if register/mode pair is acceptable on sparc.  */
        !           389: extern int hard_regno_mode_ok[FIRST_PSEUDO_REGISTER];
        !           390: 
        !           391: /* Value is 1 if hard register REGNO can hold a value of machine-mode MODE.
        !           392:    On SPARC, the cpu registers can hold any mode but the float registers
        !           393:    can only hold SFmode or DFmode.  See sparc.c for how we
        !           394:    initialize this.  */
        !           395: #define HARD_REGNO_MODE_OK(REGNO, MODE) \
        !           396:   ((hard_regno_mode_ok[REGNO] & (1<<(int)(MODE))) != 0)
        !           397: 
        !           398: /* Value is 1 if it is a good idea to tie two pseudo registers
        !           399:    when one has mode MODE1 and one has mode MODE2.
        !           400:    If HARD_REGNO_MODE_OK could produce different values for MODE1 and MODE2,
        !           401:    for any hard reg, then this must be 0 for correct output.  */
        !           402: #define MODES_TIEABLE_P(MODE1, MODE2) \
        !           403:   ((MODE1) == (MODE2) || GET_MODE_CLASS (MODE1) == GET_MODE_CLASS (MODE2))
        !           404: 
        !           405: /* Specify the registers used for certain standard purposes.
        !           406:    The values of these macros are register numbers.  */
        !           407: 
        !           408: /* SPARC pc isn't overloaded on a register that the compiler knows about.  */
        !           409: /* #define PC_REGNUM  */
        !           410: 
        !           411: /* Register to use for pushing function arguments.  */
        !           412: #define STACK_POINTER_REGNUM 14
        !           413: 
        !           414: /* Actual top-of-stack address is 92 greater than the contents
        !           415:    of the stack pointer register.  92 = 68 + 24.  64 bytes reserving space
        !           416:    for the ins and local registers, 4 byte for structure return address, and
        !           417:    24 bytes for the 6 register parameters.  */
        !           418: #define STACK_POINTER_OFFSET FIRST_PARM_OFFSET(0)
        !           419: 
        !           420: /* Base register for access to local variables of the function.  */
        !           421: #define FRAME_POINTER_REGNUM 30
        !           422: 
        !           423: #if 0
        !           424: /* Register that is used for the return address.  */
        !           425: #define RETURN_ADDR_REGNUM 15
        !           426: #endif
        !           427: 
        !           428: /* Value should be nonzero if functions must have frame pointers.
        !           429:    Zero means the frame pointer need not be set up (and parms
        !           430:    may be accessed via the stack pointer) in functions that seem suitable.
        !           431:    This is computed in `reload', in reload1.c.
        !           432: 
        !           433:    Used in flow.c, global.c, and reload1.c.  */
        !           434: extern int leaf_function;
        !           435: 
        !           436: #define FRAME_POINTER_REQUIRED \
        !           437:   (! (leaf_function_p () && only_leaf_regs_used ()))
        !           438: 
        !           439: /* C statement to store the difference between the frame pointer
        !           440:    and the stack pointer values immediately after the function prologue.
        !           441: 
        !           442:    Note, we always pretend that this is a leaf function because if
        !           443:    it's not, there's no point in trying to eliminate the
        !           444:    frame pointer.  If it is a leaf function, we guessed right!  */
        !           445: #define INITIAL_FRAME_POINTER_OFFSET(VAR) \
        !           446:   ((VAR) = (TARGET_FRW ? sparc_frw_compute_frame_size (get_frame_size ()) \
        !           447:            : compute_frame_size (get_frame_size (), 1)))
        !           448: 
        !           449: /* Base register for access to arguments of the function.  */
        !           450: #define ARG_POINTER_REGNUM 30
        !           451: 
        !           452: /* Register in which static-chain is passed to a function.  This must
        !           453:    not be a register used by the prologue.  */
        !           454: #define STATIC_CHAIN_REGNUM 2
        !           455: 
        !           456: /* Register which holds offset table for position-independent
        !           457:    data references.  */
        !           458: 
        !           459: #define PIC_OFFSET_TABLE_REGNUM 23
        !           460: 
        !           461: #define INITIALIZE_PIC initialize_pic ()
        !           462: #define FINALIZE_PIC finalize_pic ()
        !           463: 
        !           464: /* Sparc ABI says that quad-precision floats and all structures are returned
        !           465:    in memory.  */
        !           466: #define RETURN_IN_MEMORY(TYPE) \
        !           467:   (TYPE_MODE (TYPE) == BLKmode || TYPE_MODE (TYPE) == TFmode)
        !           468: 
        !           469: /* Functions which return large structures get the address
        !           470:    to place the wanted value at offset 64 from the frame.
        !           471:    Must reserve 64 bytes for the in and local registers.  */
        !           472: /* Used only in other #defines in this file.  */
        !           473: #define STRUCT_VALUE_OFFSET 64
        !           474: 
        !           475: #define STRUCT_VALUE \
        !           476:   gen_rtx (MEM, Pmode,                                 \
        !           477:           gen_rtx (PLUS, Pmode, stack_pointer_rtx,     \
        !           478:                    gen_rtx (CONST_INT, VOIDmode, STRUCT_VALUE_OFFSET)))
        !           479: #define STRUCT_VALUE_INCOMING \
        !           480:   gen_rtx (MEM, Pmode,                                 \
        !           481:           gen_rtx (PLUS, Pmode, frame_pointer_rtx,     \
        !           482:                    gen_rtx (CONST_INT, VOIDmode, STRUCT_VALUE_OFFSET)))
        !           483: 
        !           484: /* Define the classes of registers for register constraints in the
        !           485:    machine description.  Also define ranges of constants.
        !           486: 
        !           487:    One of the classes must always be named ALL_REGS and include all hard regs.
        !           488:    If there is more than one class, another class must be named NO_REGS
        !           489:    and contain no registers.
        !           490: 
        !           491:    The name GENERAL_REGS must be the name of a class (or an alias for
        !           492:    another name such as ALL_REGS).  This is the class of registers
        !           493:    that is allowed by "g" or "r" in a register constraint.
        !           494:    Also, registers outside this class are allocated only when
        !           495:    instructions express preferences for them.
        !           496: 
        !           497:    The classes must be numbered in nondecreasing order; that is,
        !           498:    a larger-numbered class must never be contained completely
        !           499:    in a smaller-numbered class.
        !           500: 
        !           501:    For any two classes, it is very desirable that there be another
        !           502:    class that represents their union.  */
        !           503: 
        !           504: /* The SPARC has two kinds of registers, general and floating point.  */
        !           505: 
        !           506: enum reg_class { NO_REGS, GENERAL_REGS, FP_REGS, ALL_REGS, LIM_REG_CLASSES };
        !           507: 
        !           508: #define N_REG_CLASSES (int) LIM_REG_CLASSES
        !           509: 
        !           510: /* Give names of register classes as strings for dump file.   */
        !           511: 
        !           512: #define REG_CLASS_NAMES \
        !           513:  {"NO_REGS", "GENERAL_REGS", "FP_REGS", "ALL_REGS" }
        !           514: 
        !           515: /* Define which registers fit in which classes.
        !           516:    This is an initializer for a vector of HARD_REG_SET
        !           517:    of length N_REG_CLASSES.  */
        !           518: 
        !           519: #if 0 && defined (__GNUC__)
        !           520: #define REG_CLASS_CONTENTS {0LL, 0xfffffffeLL, 0xffffffff00000000LL, 0xfffffffffffffffeLL}
        !           521: #else
        !           522: #define REG_CLASS_CONTENTS {{0, 0}, {-2, 0}, {0, -1}, {-2, -1}}
        !           523: #endif
        !           524: 
        !           525: /* The same information, inverted:
        !           526:    Return the class number of the smallest class containing
        !           527:    reg number REGNO.  This could be a conditional expression
        !           528:    or could index an array.  */
        !           529: 
        !           530: #define REGNO_REG_CLASS(REGNO) \
        !           531:   ((REGNO) >= 32 ? FP_REGS : (REGNO) == 0 ? NO_REGS : GENERAL_REGS)
        !           532: 
        !           533: /* This is the order in which to allocate registers
        !           534:    normally.  
        !           535:    
        !           536:    We put %f0/%f1 last among the float registers, so as to make it more
        !           537:    likely that a pseudo-register which dies in the float return register
        !           538:    will get allocated to the float return register, thus saving a move
        !           539:    instruction at the end of the function.  */
        !           540: #define REG_ALLOC_ORDER \
        !           541: { 8, 9, 10, 11, 12, 13, 2, 3,          \
        !           542:   15, 16, 17, 18, 19, 20, 21, 22,      \
        !           543:   23, 24, 25, 26, 27, 28, 29, 31,      \
        !           544:   34, 35, 36, 37, 38, 39,              \
        !           545:   40, 41, 42, 43, 44, 45, 46, 47,      \
        !           546:   48, 49, 50, 51, 52, 53, 54, 55,      \
        !           547:   56, 57, 58, 59, 60, 61, 62, 63,      \
        !           548:   32, 33,                              \
        !           549:   1, 4, 5, 6, 7, 0, 14, 30}
        !           550: 
        !           551: /* This is the order in which to allocate registers for
        !           552:    leaf functions.  If all registers can fit in the "i" registers,
        !           553:    then we have the possibility of having a leaf function.  */
        !           554: #define REG_LEAF_ALLOC_ORDER \
        !           555: { 2, 3, 24, 25, 26, 27, 28, 29,                \
        !           556:   15, 8, 9, 10, 11, 12, 13,            \
        !           557:   16, 17, 18, 19, 20, 21, 22, 23,      \
        !           558:   34, 35, 36, 37, 38, 39,              \
        !           559:   40, 41, 42, 43, 44, 45, 46, 47,      \
        !           560:   48, 49, 50, 51, 52, 53, 54, 55,      \
        !           561:   56, 57, 58, 59, 60, 61, 62, 63,      \
        !           562:   32, 33,                              \
        !           563:   1, 4, 5, 6, 7, 0, 14, 30, 31}
        !           564: 
        !           565: #define ORDER_REGS_FOR_LOCAL_ALLOC order_regs_for_local_alloc ()
        !           566: 
        !           567: #define LEAF_REGISTERS \
        !           568: { 1, 1, 1, 1, 1, 1, 1, 1,      \
        !           569:   0, 0, 0, 0, 0, 0, 1, 0,      \
        !           570:   0, 0, 0, 0, 0, 0, 0, 0,      \
        !           571:   1, 1, 1, 1, 1, 1, 0, 1,      \
        !           572:   1, 1, 1, 1, 1, 1, 1, 1,      \
        !           573:   1, 1, 1, 1, 1, 1, 1, 1,      \
        !           574:   1, 1, 1, 1, 1, 1, 1, 1,      \
        !           575:   1, 1, 1, 1, 1, 1, 1, 1}
        !           576: 
        !           577: extern char leaf_reg_remap[];
        !           578: #define LEAF_REG_REMAP(REGNO) (leaf_reg_remap[REGNO])
        !           579: extern char leaf_reg_backmap[];
        !           580: #define LEAF_REG_BACKMAP(REGNO) (leaf_reg_backmap[REGNO])
        !           581: 
        !           582: /* The class value for index registers, and the one for base regs.  */
        !           583: #define INDEX_REG_CLASS GENERAL_REGS
        !           584: #define BASE_REG_CLASS GENERAL_REGS
        !           585: 
        !           586: /* Get reg_class from a letter such as appears in the machine description.  */
        !           587: 
        !           588: #define REG_CLASS_FROM_LETTER(C) \
        !           589:   ((C) == 'f' ? FP_REGS : (C) == 'r' ? GENERAL_REGS : NO_REGS)
        !           590: 
        !           591: /* The letters I, J, K, L and M in a register constraint string
        !           592:    can be used to stand for particular ranges of immediate operands.
        !           593:    This macro defines what the ranges are.
        !           594:    C is the letter, and VALUE is a constant value.
        !           595:    Return 1 if VALUE is in the range specified by C.
        !           596: 
        !           597:    For SPARC, `I' is used for the range of constants an insn
        !           598:    can actually contain.
        !           599:    `J' is used for the range which is just zero (since that is R0).
        !           600:    `K' is used for constants which can be loaded with a single sethi insn.  */
        !           601: 
        !           602: #define SMALL_INT(X) ((unsigned) (INTVAL (X) + 0x1000) < 0x2000)
        !           603: 
        !           604: #define CONST_OK_FOR_LETTER_P(VALUE, C)  \
        !           605:   ((C) == 'I' ? (unsigned) ((VALUE) + 0x1000) < 0x2000 \
        !           606:    : (C) == 'J' ? (VALUE) == 0                         \
        !           607:    : (C) == 'K' ? ((VALUE) & 0x3ff) == 0               \
        !           608:    : 0)
        !           609: 
        !           610: /* Similar, but for floating constants, and defining letters G and H.
        !           611:    Here VALUE is the CONST_DOUBLE rtx itself.  */
        !           612: 
        !           613: #define CONST_DOUBLE_OK_FOR_LETTER_P(VALUE, C) \
        !           614:   ((C) == 'G' ? fp_zero_operand (VALUE)                        \
        !           615:    : (C) == 'H' ? arith_double_operand (VALUE, DImode) \
        !           616:    : 0)
        !           617: 
        !           618: /* Given an rtx X being reloaded into a reg required to be
        !           619:    in class CLASS, return the class of reg to actually use.
        !           620:    In general this is just CLASS; but on some machines
        !           621:    in some cases it is preferable to use a more restrictive class.  */
        !           622: /* We can't load constants into FP registers.  We can't load any FP constant
        !           623:    if an 'E' constraint fails to match it.  */
        !           624: #define PREFERRED_RELOAD_CLASS(X,CLASS)                        \
        !           625:   (CONSTANT_P (X)                                      \
        !           626:    && ((CLASS) == FP_REGS                              \
        !           627:        || (GET_MODE_CLASS (GET_MODE (X)) == MODE_FLOAT \
        !           628:           && (HOST_FLOAT_FORMAT != IEEE_FLOAT_FORMAT   \
        !           629:               || HOST_BITS_PER_INT != BITS_PER_WORD))) \
        !           630:    ? NO_REGS : (CLASS))
        !           631: 
        !           632: /* Return the register class of a scratch register needed to load IN into
        !           633:    a register of class CLASS in MODE.
        !           634: 
        !           635:    On the SPARC, when PIC, we need a temporary when loading some addresses
        !           636:    into a register.
        !           637: 
        !           638:    Also, we need a temporary when loading/storing a HImode/QImode value
        !           639:    between memory and the FPU registers.  This can happen when combine puts
        !           640:    a paradoxical subreg in a float/fix conversion insn.  */
        !           641: 
        !           642: #define SECONDARY_INPUT_RELOAD_CLASS(CLASS, MODE, IN)          \
        !           643:   (((CLASS) == FP_REGS && ((MODE) == HImode || (MODE) == QImode)\
        !           644:       && (GET_CODE (IN) == MEM                                 \
        !           645:          || ((GET_CODE (IN) == REG || GET_CODE (IN) == SUBREG) \
        !           646:              && true_regnum (IN) == -1))) ? GENERAL_REGS : NO_REGS)
        !           647: 
        !           648: #define SECONDARY_OUTPUT_RELOAD_CLASS(CLASS, MODE, IN)         \
        !           649:   ((CLASS) == FP_REGS && ((MODE) == HImode || (MODE) == QImode)        \
        !           650:    && (GET_CODE (IN) == MEM                                    \
        !           651:        || ((GET_CODE (IN) == REG || GET_CODE (IN) == SUBREG)   \
        !           652:           && true_regnum (IN) == -1)) ? GENERAL_REGS : NO_REGS)
        !           653: 
        !           654: /* On SPARC it is not possible to directly move data between 
        !           655:    GENERAL_REGS and FP_REGS.  */
        !           656: #define SECONDARY_MEMORY_NEEDED(CLASS1, CLASS2, MODE)  \
        !           657:   (((CLASS1) == FP_REGS && (CLASS2) == GENERAL_REGS)   \
        !           658:    || ((CLASS1) == GENERAL_REGS && (CLASS2) == FP_REGS))
        !           659: 
        !           660: /* Return the stack location to use for secondary memory needed reloads.  */
        !           661: #define SECONDARY_MEMORY_NEEDED_RTX(MODE) \
        !           662:   gen_rtx (MEM, MODE, gen_rtx (PLUS, Pmode, frame_pointer_rtx, \
        !           663:           GEN_INT (STARTING_FRAME_OFFSET)))
        !           664: 
        !           665: /* Return the maximum number of consecutive registers
        !           666:    needed to represent mode MODE in a register of class CLASS.  */
        !           667: /* On SPARC, this is the size of MODE in words.  */
        !           668: #define CLASS_MAX_NREGS(CLASS, MODE)   \
        !           669:   ((GET_MODE_SIZE (MODE) + UNITS_PER_WORD - 1) / UNITS_PER_WORD)
        !           670: 
        !           671: /* Stack layout; function entry, exit and calling.  */
        !           672: 
        !           673: /* Define the number of register that can hold parameters.
        !           674:    These two macros are used only in other macro definitions below.  */
        !           675: #define NPARM_REGS 6
        !           676: 
        !           677: /* Define this if pushing a word on the stack
        !           678:    makes the stack pointer a smaller address.  */
        !           679: #define STACK_GROWS_DOWNWARD
        !           680: 
        !           681: /* Define this if the nominal address of the stack frame
        !           682:    is at the high-address end of the local variables;
        !           683:    that is, each additional local variable allocated
        !           684:    goes at a more negative offset in the frame.  */
        !           685: #define FRAME_GROWS_DOWNWARD
        !           686: 
        !           687: /* Offset within stack frame to start allocating local variables at.
        !           688:    If FRAME_GROWS_DOWNWARD, this is the offset to the END of the
        !           689:    first local allocated.  Otherwise, it is the offset to the BEGINNING
        !           690:    of the first local allocated.  */
        !           691: /* This is 16 to allow space for one TFmode floating point value.  */
        !           692: #define STARTING_FRAME_OFFSET (-16)
        !           693: 
        !           694: /* If we generate an insn to push BYTES bytes,
        !           695:    this says how many the stack pointer really advances by.
        !           696:    On SPARC, don't define this because there are no push insns.  */
        !           697: /*  #define PUSH_ROUNDING(BYTES) */
        !           698: 
        !           699: /* Offset of first parameter from the argument pointer register value.
        !           700:    This is 64 for the ins and locals, plus 4 for the struct-return reg
        !           701:    even if this function isn't going to use it.  */
        !           702: #define FIRST_PARM_OFFSET(FNDECL) (STRUCT_VALUE_OFFSET + UNITS_PER_WORD)
        !           703: 
        !           704: /* When a parameter is passed in a register, stack space is still
        !           705:    allocated for it.  */
        !           706: #define REG_PARM_STACK_SPACE(DECL) (NPARM_REGS * UNITS_PER_WORD)
        !           707: 
        !           708: /* Keep the stack pointer constant throughout the function.
        !           709:    This is both an optimization and a necessity: longjmp
        !           710:    doesn't behave itself when the stack pointer moves within
        !           711:    the function!  */
        !           712: #define ACCUMULATE_OUTGOING_ARGS
        !           713: 
        !           714: /* Value is the number of bytes of arguments automatically
        !           715:    popped when returning from a subroutine call.
        !           716:    FUNTYPE is the data type of the function (as a tree),
        !           717:    or for a library call it is an identifier node for the subroutine name.
        !           718:    SIZE is the number of bytes of arguments passed on the stack.  */
        !           719: 
        !           720: #define RETURN_POPS_ARGS(FUNTYPE,SIZE) 0
        !           721: 
        !           722: /* Some subroutine macros specific to this machine.
        !           723:    When !TARGET_FPU, put float return values in the general registers,
        !           724:    since we don't have any fp registers.  */
        !           725: #define BASE_RETURN_VALUE_REG(MODE) \
        !           726:  (((MODE) == SFmode || (MODE) == DFmode) && TARGET_FPU ? 32 : 8)
        !           727: #define BASE_OUTGOING_VALUE_REG(MODE) \
        !           728:  (((MODE) == SFmode || (MODE) == DFmode) && TARGET_FPU ? 32    \
        !           729:   : (TARGET_FRW ? 8 : 24))
        !           730: #define BASE_PASSING_ARG_REG(MODE) (8)
        !           731: #define BASE_INCOMING_ARG_REG(MODE) (TARGET_FRW ? 8 : 24)
        !           732: 
        !           733: /* Define this macro if the target machine has "register windows".  This
        !           734:    C expression returns the register number as seen by the called function
        !           735:    corresponding to register number OUT as seen by the calling function.
        !           736:    Return OUT if register number OUT is not an outbound register.  */
        !           737: 
        !           738: #define INCOMING_REGNO(OUT) \
        !           739:  ((TARGET_FRW || (OUT) < 8 || (OUT) > 15) ? (OUT) : (OUT) + 16)
        !           740: 
        !           741: /* Define this macro if the target machine has "register windows".  This
        !           742:    C expression returns the register number as seen by the calling function
        !           743:    corresponding to register number IN as seen by the called function.
        !           744:    Return IN if register number IN is not an inbound register.  */
        !           745: 
        !           746: #define OUTGOING_REGNO(IN) \
        !           747:  ((TARGET_FRW || (IN) < 24 || (IN) > 31) ? (IN) : (IN) - 16)
        !           748: 
        !           749: /* Define how to find the value returned by a function.
        !           750:    VALTYPE is the data type of the value (as a tree).
        !           751:    If the precise function being called is known, FUNC is its FUNCTION_DECL;
        !           752:    otherwise, FUNC is 0.  */
        !           753: 
        !           754: /* On SPARC the value is found in the first "output" register.  */
        !           755: 
        !           756: #define FUNCTION_VALUE(VALTYPE, FUNC)  \
        !           757:   gen_rtx (REG, TYPE_MODE (VALTYPE), BASE_RETURN_VALUE_REG (TYPE_MODE (VALTYPE)))
        !           758: 
        !           759: /* But the called function leaves it in the first "input" register.  */
        !           760: 
        !           761: #define FUNCTION_OUTGOING_VALUE(VALTYPE, FUNC)  \
        !           762:   gen_rtx (REG, TYPE_MODE (VALTYPE), BASE_OUTGOING_VALUE_REG (TYPE_MODE (VALTYPE)))
        !           763: 
        !           764: /* Define how to find the value returned by a library function
        !           765:    assuming the value has mode MODE.  */
        !           766: 
        !           767: #define LIBCALL_VALUE(MODE)    \
        !           768:   gen_rtx (REG, MODE, BASE_RETURN_VALUE_REG (MODE))
        !           769: 
        !           770: /* 1 if N is a possible register number for a function value
        !           771:    as seen by the caller.
        !           772:    On SPARC, the first "output" reg is used for integer values,
        !           773:    and the first floating point register is used for floating point values.  */
        !           774: 
        !           775: #define FUNCTION_VALUE_REGNO_P(N) ((N) == 8 || (N) == 32)
        !           776: 
        !           777: /* Define the size of space to allocate for the return value of an
        !           778:    untyped_call.  */
        !           779: 
        !           780: #define APPLY_RESULT_SIZE 16
        !           781: 
        !           782: /* 1 if N is a possible register number for function argument passing.
        !           783:    On SPARC, these are the "output" registers.  */
        !           784: 
        !           785: #define FUNCTION_ARG_REGNO_P(N) ((N) < 14 && (N) > 7)
        !           786: 
        !           787: /* Define a data type for recording info about an argument list
        !           788:    during the scan of that argument list.  This data type should
        !           789:    hold all necessary information about the function itself
        !           790:    and about the args processed so far, enough to enable macros
        !           791:    such as FUNCTION_ARG to determine where the next arg should go.
        !           792: 
        !           793:    On SPARC, this is a single integer, which is a number of words
        !           794:    of arguments scanned so far (including the invisible argument,
        !           795:    if any, which holds the structure-value-address).
        !           796:    Thus 7 or more means all following args should go on the stack.  */
        !           797: 
        !           798: #define CUMULATIVE_ARGS int
        !           799: 
        !           800: #define ROUND_ADVANCE(SIZE)    \
        !           801:   ((SIZE + UNITS_PER_WORD - 1) / UNITS_PER_WORD)
        !           802: 
        !           803: /* Initialize a variable CUM of type CUMULATIVE_ARGS
        !           804:    for a call to a function whose data type is FNTYPE.
        !           805:    For a library call, FNTYPE is 0.
        !           806: 
        !           807:    On SPARC, the offset always starts at 0: the first parm reg is always
        !           808:    the same reg.  */
        !           809: 
        !           810: #define INIT_CUMULATIVE_ARGS(CUM,FNTYPE,LIBNAME) ((CUM) = 0)
        !           811: 
        !           812: /* Update the data in CUM to advance over an argument
        !           813:    of mode MODE and data type TYPE.
        !           814:    (TYPE is null for libcalls where that information may not be available.)  */
        !           815: 
        !           816: #define FUNCTION_ARG_ADVANCE(CUM, MODE, TYPE, NAMED)   \
        !           817:   ((CUM) += ((MODE) != BLKmode                         \
        !           818:             ? ROUND_ADVANCE (GET_MODE_SIZE (MODE))     \
        !           819:             : ROUND_ADVANCE (int_size_in_bytes (TYPE))))
        !           820: 
        !           821: /* Determine where to put an argument to a function.
        !           822:    Value is zero to push the argument on the stack,
        !           823:    or a hard register in which to store the argument.
        !           824: 
        !           825:    MODE is the argument's machine mode.
        !           826:    TYPE is the data type of the argument (as a tree).
        !           827:     This is null for libcalls where that information may
        !           828:     not be available.
        !           829:    CUM is a variable of type CUMULATIVE_ARGS which gives info about
        !           830:     the preceding args and about the function being called.
        !           831:    NAMED is nonzero if this argument is a named parameter
        !           832:     (otherwise it is an extra parameter matching an ellipsis).  */
        !           833: 
        !           834: /* On SPARC the first six args are normally in registers
        !           835:    and the rest are pushed.  Any arg that starts within the first 6 words
        !           836:    is at least partially passed in a register unless its data type forbids.  */
        !           837: 
        !           838: #define FUNCTION_ARG(CUM, MODE, TYPE, NAMED)                           \
        !           839: ((CUM) < NPARM_REGS                                                    \
        !           840:  && ((TYPE)==0 || ! TREE_ADDRESSABLE ((tree)(TYPE)))                   \
        !           841:  && ((TYPE)==0 || (MODE) != BLKmode                                    \
        !           842:      || (TYPE_ALIGN ((TYPE)) % PARM_BOUNDARY == 0))                    \
        !           843:  ? gen_rtx (REG, (MODE), (BASE_PASSING_ARG_REG (MODE) + (CUM)))                \
        !           844:  : 0)
        !           845: 
        !           846: /* Define where a function finds its arguments.
        !           847:    This is different from FUNCTION_ARG because of register windows.  */
        !           848: 
        !           849: #define FUNCTION_INCOMING_ARG(CUM, MODE, TYPE, NAMED)                  \
        !           850: ((CUM) < NPARM_REGS                                                    \
        !           851:  && ((TYPE)==0 || ! TREE_ADDRESSABLE ((tree)(TYPE)))                   \
        !           852:  && ((TYPE)==0 || (MODE) != BLKmode                                    \
        !           853:      || (TYPE_ALIGN ((TYPE)) % PARM_BOUNDARY == 0))                    \
        !           854:  ? gen_rtx (REG, (MODE), (BASE_INCOMING_ARG_REG (MODE) + (CUM)))       \
        !           855:  : 0)
        !           856: 
        !           857: /* For an arg passed partly in registers and partly in memory,
        !           858:    this is the number of registers used.
        !           859:    For args passed entirely in registers or entirely in memory, zero.
        !           860:    Any arg that starts in the first 6 regs but won't entirely fit in them
        !           861:    needs partial registers on the Sparc.  */
        !           862: 
        !           863: #define FUNCTION_ARG_PARTIAL_NREGS(CUM, MODE, TYPE, NAMED)             \
        !           864:   ((CUM) < NPARM_REGS                                                  \
        !           865:     && ((TYPE)==0 || ! TREE_ADDRESSABLE ((tree)(TYPE)))                        \
        !           866:     && ((TYPE)==0 || (MODE) != BLKmode                                 \
        !           867:        || (TYPE_ALIGN ((TYPE)) % PARM_BOUNDARY == 0))                  \
        !           868:     && ((CUM) + ((MODE) == BLKmode                                     \
        !           869:                 ? ROUND_ADVANCE (int_size_in_bytes (TYPE))             \
        !           870:                 : ROUND_ADVANCE (GET_MODE_SIZE (MODE))) - NPARM_REGS > 0)\
        !           871:    ? (NPARM_REGS - (CUM))                                              \
        !           872:    : 0)
        !           873: 
        !           874: /* The SPARC ABI stipulates passing struct arguments (of any size) and
        !           875:    quad-precision floats by invisible reference.  */
        !           876: #define FUNCTION_ARG_PASS_BY_REFERENCE(CUM, MODE, TYPE, NAMED)         \
        !           877:   ((TYPE && (TREE_CODE (TYPE) == RECORD_TYPE                           \
        !           878:            || TREE_CODE (TYPE) == UNION_TYPE))                         \
        !           879:    || (MODE == TFmode))
        !           880: 
        !           881: /* Define the information needed to generate branch and scc insns.  This is
        !           882:    stored from the compare operation.  Note that we can't use "rtx" here
        !           883:    since it hasn't been defined!  */
        !           884: 
        !           885: extern struct rtx_def *sparc_compare_op0, *sparc_compare_op1;
        !           886: 
        !           887: /* Define the function that build the compare insn for scc and bcc.  */
        !           888: 
        !           889: extern struct rtx_def *gen_compare_reg ();
        !           890: 
        !           891: /* Generate the special assembly code needed to tell the assembler whatever
        !           892:    it might need to know about the return value of a function.
        !           893: 
        !           894:    For Sparc assemblers, we need to output a .proc pseudo-op which conveys
        !           895:    information to the assembler relating to peephole optimization (done in
        !           896:    the assembler).  */
        !           897: 
        !           898: #define ASM_DECLARE_RESULT(FILE, RESULT) \
        !           899:   fprintf ((FILE), "\t.proc\t0%o\n", sparc_type_code (TREE_TYPE (RESULT)))
        !           900: 
        !           901: /* Output the label for a function definition.  */
        !           902: 
        !           903: #define ASM_DECLARE_FUNCTION_NAME(FILE, NAME, DECL)                    \
        !           904: do {                                                                   \
        !           905:   ASM_DECLARE_RESULT (FILE, DECL_RESULT (DECL));                       \
        !           906:   ASM_OUTPUT_LABEL (FILE, NAME);                                       \
        !           907: } while (0)
        !           908: 
        !           909: /* This macro generates the assembly code for function entry.
        !           910:    FILE is a stdio stream to output the code to.
        !           911:    SIZE is an int: how many units of temporary storage to allocate.
        !           912:    Refer to the array `regs_ever_live' to determine which registers
        !           913:    to save; `regs_ever_live[I]' is nonzero if register number I
        !           914:    is ever used in the function.  This macro is responsible for
        !           915:    knowing which registers should not be saved even if used.  */
        !           916: 
        !           917: /* On SPARC, move-double insns between fpu and cpu need an 8-byte block
        !           918:    of memory.  If any fpu reg is used in the function, we allocate
        !           919:    such a block here, at the bottom of the frame, just in case it's needed.
        !           920: 
        !           921:    If this function is a leaf procedure, then we may choose not
        !           922:    to do a "save" insn.  The decision about whether or not
        !           923:    to do this is made in regclass.c.  */
        !           924: 
        !           925: #define FUNCTION_PROLOGUE(FILE, SIZE)                          \
        !           926:   (TARGET_FRW ? sparc_frw_output_function_prologue (FILE, SIZE, leaf_function)\
        !           927:    : output_function_prologue (FILE, SIZE, leaf_function))
        !           928: 
        !           929: /* Output assembler code to FILE to increment profiler label # LABELNO
        !           930:    for profiling a function entry.  */
        !           931: 
        !           932: #define FUNCTION_PROFILER(FILE, LABELNO)                       \
        !           933:   do {                                                         \
        !           934:     fputs ("\tsethi %hi(", (FILE));                            \
        !           935:     ASM_OUTPUT_INTERNAL_LABELREF (FILE, "LP", LABELNO);                \
        !           936:     fputs ("),%o0\n\tcall mcount\n\tor %lo(", (FILE));         \
        !           937:     ASM_OUTPUT_INTERNAL_LABELREF (FILE, "LP", LABELNO);                \
        !           938:     fputs ("),%o0,%o0\n", (FILE));                             \
        !           939:   } while (0)
        !           940: 
        !           941: /* Output assembler code to FILE to initialize this source file's
        !           942:    basic block profiling info, if that has not already been done.  */
        !           943: /* FIXME -- this does not parameterize how it generates labels (like the
        !           944:    above FUNCTION_PROFILER).  Broken on Solaris-2.   [email protected] */
        !           945: 
        !           946: #define FUNCTION_BLOCK_PROFILER(FILE, LABELNO)  \
        !           947:   fprintf (FILE, "\tsethi %%hi(LPBX0),%%o0\n\tld [%%lo(LPBX0)+%%o0],%%o1\n\ttst %%o1\n\tbne LPY%d\n\tadd %%o0,%%lo(LPBX0),%%o0\n\tcall ___bb_init_func\n\tnop\nLPY%d:\n",  \
        !           948:           (LABELNO), (LABELNO))
        !           949: 
        !           950: /* Output assembler code to FILE to increment the entry-count for
        !           951:    the BLOCKNO'th basic block in this source file.  */
        !           952: 
        !           953: #define BLOCK_PROFILER(FILE, BLOCKNO) \
        !           954: {                                                              \
        !           955:   int blockn = (BLOCKNO);                                      \
        !           956:   fprintf (FILE, "\tsethi %%hi(LPBX2+%d),%%g1\n\tld [%%lo(LPBX2+%d)+%%g1],%%g2\n\
        !           957: \tadd %%g2,1,%%g2\n\tst %%g2,[%%lo(LPBX2+%d)+%%g1]\n",         \
        !           958:           4 * blockn, 4 * blockn, 4 * blockn);                 \
        !           959: }
        !           960: 
        !           961: /* EXIT_IGNORE_STACK should be nonzero if, when returning from a function,
        !           962:    the stack pointer does not matter.  The value is tested only in
        !           963:    functions that have frame pointers.
        !           964:    No definition is equivalent to always zero.  */
        !           965: 
        !           966: extern int current_function_calls_alloca;
        !           967: extern int current_function_outgoing_args_size;
        !           968: 
        !           969: #define EXIT_IGNORE_STACK      \
        !           970:  (get_frame_size () != 0       \
        !           971:   || current_function_calls_alloca || current_function_outgoing_args_size)
        !           972: 
        !           973: /* This macro generates the assembly code for function exit,
        !           974:    on machines that need it.  If FUNCTION_EPILOGUE is not defined
        !           975:    then individual return instructions are generated for each
        !           976:    return statement.  Args are same as for FUNCTION_PROLOGUE.
        !           977: 
        !           978:    The function epilogue should not depend on the current stack pointer!
        !           979:    It should use the frame pointer only.  This is mandatory because
        !           980:    of alloca; we also take advantage of it to omit stack adjustments
        !           981:    before returning.  */
        !           982: 
        !           983: /* This declaration is needed due to traditional/ANSI
        !           984:    incompatibilities which cannot be #ifdefed away
        !           985:    because they occur inside of macros.  Sigh.  */
        !           986: extern union tree_node *current_function_decl;
        !           987: 
        !           988: #define FUNCTION_EPILOGUE(FILE, SIZE)                          \
        !           989:   (TARGET_FRW ? sparc_frw_output_function_epilogue (FILE, SIZE, leaf_function)\
        !           990:    : output_function_epilogue (FILE, SIZE, leaf_function))
        !           991: 
        !           992: #define DELAY_SLOTS_FOR_EPILOGUE       \
        !           993:   (TARGET_FRW ? sparc_frw_epilogue_delay_slots () : 1)
        !           994: #define ELIGIBLE_FOR_EPILOGUE_DELAY(trial, slots_filled)       \
        !           995:   (TARGET_FRW ? sparc_frw_eligible_for_epilogue_delay (trial, slots_filled) \
        !           996:    : eligible_for_epilogue_delay (trial, slots_filled))
        !           997: 
        !           998: /* Output assembler code for a block containing the constant parts
        !           999:    of a trampoline, leaving space for the variable parts.  */
        !          1000: 
        !          1001: /* On the sparc, the trampoline contains five instructions:
        !          1002:      sethi #TOP_OF_FUNCTION,%g1
        !          1003:      or #BOTTOM_OF_FUNCTION,%g1,%g1
        !          1004:      sethi #TOP_OF_STATIC,%g2
        !          1005:      jmp g1
        !          1006:      or #BOTTOM_OF_STATIC,%g2,%g2  */
        !          1007: #define TRAMPOLINE_TEMPLATE(FILE)                                      \
        !          1008: {                                                                      \
        !          1009:   ASM_OUTPUT_INT (FILE, gen_rtx (CONST_INT, VOIDmode, 0x00000000));    \
        !          1010:   ASM_OUTPUT_INT (FILE, gen_rtx (CONST_INT, VOIDmode, 0x00000000));    \
        !          1011:   ASM_OUTPUT_INT (FILE, gen_rtx (CONST_INT, VOIDmode, 0x00000000));    \
        !          1012:   ASM_OUTPUT_INT (FILE, gen_rtx (CONST_INT, VOIDmode, 0x81C04000));    \
        !          1013:   ASM_OUTPUT_INT (FILE, gen_rtx (CONST_INT, VOIDmode, 0x00000000));    \
        !          1014: }
        !          1015: 
        !          1016: /* Length in units of the trampoline for entering a nested function.  */
        !          1017: 
        !          1018: #define TRAMPOLINE_SIZE 20
        !          1019: 
        !          1020: /* Emit RTL insns to initialize the variable parts of a trampoline.
        !          1021:    FNADDR is an RTX for the address of the function's pure code.
        !          1022:    CXT is an RTX for the static chain value for the function.
        !          1023: 
        !          1024:    This takes 16 insns: 2 shifts & 2 ands (to split up addresses), 4 sethi
        !          1025:    (to load in opcodes), 4 iors (to merge address and opcodes), and 4 writes
        !          1026:    (to store insns).  This is a bit excessive.  Perhaps a different
        !          1027:    mechanism would be better here.
        !          1028: 
        !          1029:    Emit 3 FLUSH instructions (UNSPEC_VOLATILE 2) to synchonize the data
        !          1030:    and instruction caches.  */
        !          1031: 
        !          1032: #define INITIALIZE_TRAMPOLINE(TRAMP, FNADDR, CXT)                      \
        !          1033: {                                                                      \
        !          1034:   rtx high_cxt = expand_shift (RSHIFT_EXPR, SImode, CXT,               \
        !          1035:                              size_int (10), 0, 1);                     \
        !          1036:   rtx high_fn = expand_shift (RSHIFT_EXPR, SImode, FNADDR,             \
        !          1037:                             size_int (10), 0, 1);                      \
        !          1038:   rtx low_cxt = expand_and (CXT, gen_rtx (CONST_INT, VOIDmode, 0x3ff), 0); \
        !          1039:   rtx low_fn = expand_and (FNADDR, gen_rtx (CONST_INT, VOIDmode, 0x3ff), 0); \
        !          1040:   rtx g1_sethi = gen_rtx (HIGH, SImode,                                        \
        !          1041:                          gen_rtx (CONST_INT, VOIDmode, 0x03000000));   \
        !          1042:   rtx g2_sethi = gen_rtx (HIGH, SImode,                                        \
        !          1043:                          gen_rtx (CONST_INT, VOIDmode, 0x05000000));   \
        !          1044:   rtx g1_ori = gen_rtx (HIGH, SImode,                                  \
        !          1045:                        gen_rtx (CONST_INT, VOIDmode, 0x82106000));     \
        !          1046:   rtx g2_ori = gen_rtx (HIGH, SImode,                                  \
        !          1047:                        gen_rtx (CONST_INT, VOIDmode, 0x8410A000));     \
        !          1048:   rtx tem = gen_reg_rtx (SImode);                                      \
        !          1049:   emit_move_insn (tem, g1_sethi);                                      \
        !          1050:   emit_insn (gen_iorsi3 (high_fn, high_fn, tem));                      \
        !          1051:   emit_move_insn (gen_rtx (MEM, SImode, plus_constant (TRAMP, 0)), high_fn);\
        !          1052:   emit_move_insn (tem, g1_ori);                                                \
        !          1053:   emit_insn (gen_iorsi3 (low_fn, low_fn, tem));                                \
        !          1054:   emit_move_insn (gen_rtx (MEM, SImode, plus_constant (TRAMP, 4)), low_fn);\
        !          1055:   emit_move_insn (tem, g2_sethi);                                      \
        !          1056:   emit_insn (gen_iorsi3 (high_cxt, high_cxt, tem));                    \
        !          1057:   emit_move_insn (gen_rtx (MEM, SImode, plus_constant (TRAMP, 8)), high_cxt);\
        !          1058:   emit_move_insn (tem, g2_ori);                                                \
        !          1059:   emit_insn (gen_iorsi3 (low_cxt, low_cxt, tem));                      \
        !          1060:   emit_move_insn (gen_rtx (MEM, SImode, plus_constant (TRAMP, 16)), low_cxt);\
        !          1061:   emit_insn (gen_rtx (UNSPEC_VOLATILE, VOIDmode,                       \
        !          1062:                      gen_rtvec (1, plus_constant (TRAMP, 0)),          \
        !          1063:                      2));                                              \
        !          1064:   emit_insn (gen_rtx (UNSPEC_VOLATILE, VOIDmode,                       \
        !          1065:                      gen_rtvec (1, plus_constant (TRAMP, 8)),          \
        !          1066:                      2));                                              \
        !          1067:   emit_insn (gen_rtx (UNSPEC_VOLATILE, VOIDmode,                       \
        !          1068:                      gen_rtvec (1, plus_constant (TRAMP, 16)),         \
        !          1069:                      2));                                              \
        !          1070: }
        !          1071: 
        !          1072: /* Generate necessary RTL for __builtin_saveregs().
        !          1073:    ARGLIST is the argument list; see expr.c.  */
        !          1074: extern struct rtx_def *sparc_builtin_saveregs ();
        !          1075: #define EXPAND_BUILTIN_SAVEREGS(ARGLIST) sparc_builtin_saveregs (ARGLIST)
        !          1076: 
        !          1077: /* Generate RTL to flush the register windows so as to make arbitrary frames
        !          1078:    available.  */
        !          1079: #define SETUP_FRAME_ADDRESSES()                \
        !          1080:   emit_insn (gen_flush_register_windows ())
        !          1081: 
        !          1082: /* Given an rtx for the address of a frame,
        !          1083:    return an rtx for the address of the word in the frame
        !          1084:    that holds the dynamic chain--the previous frame's address.  */
        !          1085: #define DYNAMIC_CHAIN_ADDRESS(frame) \
        !          1086:   gen_rtx (PLUS, Pmode, frame, gen_rtx (CONST_INT, VOIDmode, 56))
        !          1087: 
        !          1088: /* The return address isn't on the stack, it is in a register, so we can't
        !          1089:    access it from the current frame pointer.  We can access it from the
        !          1090:    previous frame pointer though by reading a value from the register window
        !          1091:    save area.  */
        !          1092: #define RETURN_ADDR_IN_PREVIOUS_FRAME
        !          1093: 
        !          1094: /* The current return address is in %i7.  The return address of anything
        !          1095:    farther back is in the register window save area at [%fp+60].  */
        !          1096: /* ??? This ignores the fact that the actual return address is +8 for normal
        !          1097:    returns, and +12 for structure returns.  */
        !          1098: #define RETURN_ADDR_RTX(count, frame)          \
        !          1099:   ((count == -1)                               \
        !          1100:    ? gen_rtx (REG, Pmode, 31)                  \
        !          1101:    : copy_to_reg (gen_rtx (MEM, Pmode,         \
        !          1102:                           memory_address (Pmode, plus_constant (frame, 60)))))
        !          1103: 
        !          1104: /* Addressing modes, and classification of registers for them.  */
        !          1105: 
        !          1106: /* #define HAVE_POST_INCREMENT */
        !          1107: /* #define HAVE_POST_DECREMENT */
        !          1108: 
        !          1109: /* #define HAVE_PRE_DECREMENT */
        !          1110: /* #define HAVE_PRE_INCREMENT */
        !          1111: 
        !          1112: /* Macros to check register numbers against specific register classes.  */
        !          1113: 
        !          1114: /* These assume that REGNO is a hard or pseudo reg number.
        !          1115:    They give nonzero only if REGNO is a hard reg of the suitable class
        !          1116:    or a pseudo reg currently allocated to a suitable hard reg.
        !          1117:    Since they use reg_renumber, they are safe only once reg_renumber
        !          1118:    has been allocated, which happens in local-alloc.c.  */
        !          1119: 
        !          1120: #define REGNO_OK_FOR_INDEX_P(REGNO) \
        !          1121: (((REGNO) < 32 || (unsigned) reg_renumber[REGNO] < 32) && (REGNO) != 0)
        !          1122: #define REGNO_OK_FOR_BASE_P(REGNO) \
        !          1123: (((REGNO) < 32 || (unsigned) reg_renumber[REGNO] < 32) && (REGNO) != 0)
        !          1124: #define REGNO_OK_FOR_FP_P(REGNO) \
        !          1125: (((REGNO) ^ 0x20) < 32 \
        !          1126:  || (((REGNO) != 0) && (unsigned) (reg_renumber[REGNO] ^ 0x20) < 32))
        !          1127: 
        !          1128: /* Now macros that check whether X is a register and also,
        !          1129:    strictly, whether it is in a specified class.
        !          1130: 
        !          1131:    These macros are specific to the SPARC, and may be used only
        !          1132:    in code for printing assembler insns and in conditions for
        !          1133:    define_optimization.  */
        !          1134: 
        !          1135: /* 1 if X is an fp register.  */
        !          1136: 
        !          1137: #define FP_REG_P(X) (REG_P (X) && REGNO_OK_FOR_FP_P (REGNO (X)))
        !          1138: 
        !          1139: /* Maximum number of registers that can appear in a valid memory address.  */
        !          1140: 
        !          1141: #define MAX_REGS_PER_ADDRESS 2
        !          1142: 
        !          1143: /* Recognize any constant value that is a valid address.
        !          1144:    When PIC, we do not accept an address that would require a scratch reg
        !          1145:    to load into a register.  */
        !          1146: 
        !          1147: #define CONSTANT_ADDRESS_P(X)   \
        !          1148:   (GET_CODE (X) == LABEL_REF || GET_CODE (X) == SYMBOL_REF             \
        !          1149:    || GET_CODE (X) == CONST_INT || GET_CODE (X) == HIGH                        \
        !          1150:    || (GET_CODE (X) == CONST                                           \
        !          1151:        && ! (flag_pic && pic_address_needs_scratch (X))))
        !          1152: 
        !          1153: /* Define this, so that when PIC, reload won't try to reload invalid
        !          1154:    addresses which require two reload registers.  */
        !          1155: 
        !          1156: #define LEGITIMATE_PIC_OPERAND_P(X)  (! pic_address_needs_scratch (X))
        !          1157: 
        !          1158: /* Nonzero if the constant value X is a legitimate general operand.
        !          1159:    Anything can be made to work except floating point constants.  */
        !          1160: 
        !          1161: #define LEGITIMATE_CONSTANT_P(X) \
        !          1162:   (GET_CODE (X) != CONST_DOUBLE || GET_MODE (X) == VOIDmode)
        !          1163: 
        !          1164: /* The macros REG_OK_FOR..._P assume that the arg is a REG rtx
        !          1165:    and check its validity for a certain class.
        !          1166:    We have two alternate definitions for each of them.
        !          1167:    The usual definition accepts all pseudo regs; the other rejects
        !          1168:    them unless they have been allocated suitable hard regs.
        !          1169:    The symbol REG_OK_STRICT causes the latter definition to be used.
        !          1170: 
        !          1171:    Most source files want to accept pseudo regs in the hope that
        !          1172:    they will get allocated to the class that the insn wants them to be in.
        !          1173:    Source files for reload pass need to be strict.
        !          1174:    After reload, it makes no difference, since pseudo regs have
        !          1175:    been eliminated by then.  */
        !          1176: 
        !          1177: /* Optional extra constraints for this machine.  Borrowed from romp.h.
        !          1178: 
        !          1179:    For the SPARC, `Q' means that this is a memory operand but not a
        !          1180:    symbolic memory operand.  Note that an unassigned pseudo register
        !          1181:    is such a memory operand.  Needed because reload will generate
        !          1182:    these things in insns and then not re-recognize the insns, causing
        !          1183:    constrain_operands to fail.
        !          1184: 
        !          1185:    `S' handles constraints for calls.  */
        !          1186: 
        !          1187: #ifndef REG_OK_STRICT
        !          1188: 
        !          1189: /* Nonzero if X is a hard reg that can be used as an index
        !          1190:    or if it is a pseudo reg.  */
        !          1191: #define REG_OK_FOR_INDEX_P(X) (((unsigned) REGNO (X)) - 32 >= 32 && REGNO (X) != 0)
        !          1192: /* Nonzero if X is a hard reg that can be used as a base reg
        !          1193:    or if it is a pseudo reg.  */
        !          1194: #define REG_OK_FOR_BASE_P(X) (((unsigned) REGNO (X)) - 32 >= 32 && REGNO (X) != 0)
        !          1195: 
        !          1196: #define EXTRA_CONSTRAINT(OP, C)                                \
        !          1197:   ((C) == 'Q'                                          \
        !          1198:    ? ((GET_CODE (OP) == MEM                            \
        !          1199:        && memory_address_p (GET_MODE (OP), XEXP (OP, 0))       \
        !          1200:        && ! symbolic_memory_operand (OP, VOIDmode))    \
        !          1201:       || (reload_in_progress && GET_CODE (OP) == REG   \
        !          1202:          && REGNO (OP) >= FIRST_PSEUDO_REGISTER))      \
        !          1203:    : (C) == 'T'                                                \
        !          1204:    ? (mem_aligned_8 (OP))                              \
        !          1205:    : (C) == 'U'                                                \
        !          1206:    ? (register_ok_for_ldd (OP))                                \
        !          1207:    : 0)
        !          1208:  
        !          1209: #else
        !          1210: 
        !          1211: /* Nonzero if X is a hard reg that can be used as an index.  */
        !          1212: #define REG_OK_FOR_INDEX_P(X) REGNO_OK_FOR_INDEX_P (REGNO (X))
        !          1213: /* Nonzero if X is a hard reg that can be used as a base reg.  */
        !          1214: #define REG_OK_FOR_BASE_P(X) REGNO_OK_FOR_BASE_P (REGNO (X))
        !          1215: 
        !          1216: #define EXTRA_CONSTRAINT(OP, C)                                \
        !          1217:   ((C) == 'Q'                                          \
        !          1218:    ? (GET_CODE (OP) == REG                             \
        !          1219:       ? (REGNO (OP) >= FIRST_PSEUDO_REGISTER           \
        !          1220:         && reg_renumber[REGNO (OP)] < 0)               \
        !          1221:       : GET_CODE (OP) == MEM)                          \
        !          1222:    : (C) == 'T'                                                \
        !          1223:    ? mem_aligned_8 (OP) && strict_memory_address_p (Pmode, XEXP (OP, 0)) \
        !          1224:    : (C) == 'U'                                                \
        !          1225:    ? (GET_CODE (OP) == REG                             \
        !          1226:       && (REGNO (OP) < FIRST_PSEUDO_REGISTER           \
        !          1227:          || reg_renumber[REGNO (OP)] > 0)              \
        !          1228:       && register_ok_for_ldd (OP)) : 0)
        !          1229: #endif
        !          1230: 
        !          1231: /* GO_IF_LEGITIMATE_ADDRESS recognizes an RTL expression
        !          1232:    that is a valid memory address for an instruction.
        !          1233:    The MODE argument is the machine mode for the MEM expression
        !          1234:    that wants to use this address.
        !          1235: 
        !          1236:    On SPARC, the actual legitimate addresses must be REG+REG or REG+SMALLINT
        !          1237:    ordinarily.  This changes a bit when generating PIC.
        !          1238: 
        !          1239:    If you change this, execute "rm explow.o recog.o reload.o".  */
        !          1240: 
        !          1241: #define RTX_OK_FOR_BASE_P(X)                                           \
        !          1242:   ((GET_CODE (X) == REG && REG_OK_FOR_BASE_P (X))                      \
        !          1243:   || (GET_CODE (X) == SUBREG                                           \
        !          1244:       && GET_CODE (SUBREG_REG (X)) == REG                              \
        !          1245:       && REG_OK_FOR_BASE_P (SUBREG_REG (X))))
        !          1246: 
        !          1247: #define RTX_OK_FOR_INDEX_P(X)                                          \
        !          1248:   ((GET_CODE (X) == REG && REG_OK_FOR_INDEX_P (X))                     \
        !          1249:   || (GET_CODE (X) == SUBREG                                           \
        !          1250:       && GET_CODE (SUBREG_REG (X)) == REG                              \
        !          1251:       && REG_OK_FOR_INDEX_P (SUBREG_REG (X))))
        !          1252: 
        !          1253: #define RTX_OK_FOR_OFFSET_P(X)                                         \
        !          1254:   (GET_CODE (X) == CONST_INT && INTVAL (X) >= -0x1000 && INTVAL (X) < 0x1000)
        !          1255: 
        !          1256: #define GO_IF_LEGITIMATE_ADDRESS(MODE, X, ADDR)                \
        !          1257: { if (RTX_OK_FOR_BASE_P (X))                           \
        !          1258:     goto ADDR;                                         \
        !          1259:   else if (GET_CODE (X) == PLUS)                       \
        !          1260:     {                                                  \
        !          1261:       register rtx op0 = XEXP (X, 0);                  \
        !          1262:       register rtx op1 = XEXP (X, 1);                  \
        !          1263:       if (flag_pic && op0 == pic_offset_table_rtx)     \
        !          1264:        {                                               \
        !          1265:          if (RTX_OK_FOR_BASE_P (op1))                  \
        !          1266:            goto ADDR;                                  \
        !          1267:          else if (flag_pic == 1                        \
        !          1268:                   && GET_CODE (op1) != REG             \
        !          1269:                   && GET_CODE (op1) != LO_SUM          \
        !          1270:                   && GET_CODE (op1) != MEM             \
        !          1271:                   && (GET_CODE (op1) != CONST_INT      \
        !          1272:                       || SMALL_INT (op1)))             \
        !          1273:            goto ADDR;                                  \
        !          1274:        }                                               \
        !          1275:       else if (RTX_OK_FOR_BASE_P (op0))                        \
        !          1276:        {                                               \
        !          1277:          if (RTX_OK_FOR_INDEX_P (op1)                  \
        !          1278:              || RTX_OK_FOR_OFFSET_P (op1))             \
        !          1279:            goto ADDR;                                  \
        !          1280:        }                                               \
        !          1281:       else if (RTX_OK_FOR_BASE_P (op1))                        \
        !          1282:        {                                               \
        !          1283:          if (RTX_OK_FOR_INDEX_P (op0)                  \
        !          1284:              || RTX_OK_FOR_OFFSET_P (op0))             \
        !          1285:            goto ADDR;                                  \
        !          1286:        }                                               \
        !          1287:     }                                                  \
        !          1288:   else if (GET_CODE (X) == LO_SUM)                     \
        !          1289:     {                                                  \
        !          1290:       register rtx op0 = XEXP (X, 0);                  \
        !          1291:       register rtx op1 = XEXP (X, 1);                  \
        !          1292:       if (RTX_OK_FOR_BASE_P (op0)                      \
        !          1293:          && CONSTANT_P (op1))                          \
        !          1294:        goto ADDR;                                      \
        !          1295:     }                                                  \
        !          1296:   else if (GET_CODE (X) == CONST_INT && SMALL_INT (X)) \
        !          1297:     goto ADDR;                                         \
        !          1298: }
        !          1299: 
        !          1300: /* Try machine-dependent ways of modifying an illegitimate address
        !          1301:    to be legitimate.  If we find one, return the new, valid address.
        !          1302:    This macro is used in only one place: `memory_address' in explow.c.
        !          1303: 
        !          1304:    OLDX is the address as it was before break_out_memory_refs was called.
        !          1305:    In some cases it is useful to look at this to decide what needs to be done.
        !          1306: 
        !          1307:    MODE and WIN are passed so that this macro can use
        !          1308:    GO_IF_LEGITIMATE_ADDRESS.
        !          1309: 
        !          1310:    It is always safe for this macro to do nothing.  It exists to recognize
        !          1311:    opportunities to optimize the output.  */
        !          1312: 
        !          1313: /* On SPARC, change REG+N into REG+REG, and REG+(X*Y) into REG+REG.  */
        !          1314: extern struct rtx_def *legitimize_pic_address ();
        !          1315: #define LEGITIMIZE_ADDRESS(X,OLDX,MODE,WIN)    \
        !          1316: { rtx sparc_x = (X);                                           \
        !          1317:   if (GET_CODE (X) == PLUS && GET_CODE (XEXP (X, 0)) == MULT)  \
        !          1318:     (X) = gen_rtx (PLUS, Pmode, XEXP (X, 1),                   \
        !          1319:                   force_operand (XEXP (X, 0), NULL_RTX));      \
        !          1320:   if (GET_CODE (X) == PLUS && GET_CODE (XEXP (X, 1)) == MULT)  \
        !          1321:     (X) = gen_rtx (PLUS, Pmode, XEXP (X, 0),                   \
        !          1322:                   force_operand (XEXP (X, 1), NULL_RTX));      \
        !          1323:   if (GET_CODE (X) == PLUS && GET_CODE (XEXP (X, 0)) == PLUS)  \
        !          1324:     (X) = gen_rtx (PLUS, Pmode, force_operand (XEXP (X, 0), NULL_RTX),\
        !          1325:                   XEXP (X, 1));                                \
        !          1326:   if (GET_CODE (X) == PLUS && GET_CODE (XEXP (X, 1)) == PLUS)  \
        !          1327:     (X) = gen_rtx (PLUS, Pmode, XEXP (X, 0),                   \
        !          1328:                   force_operand (XEXP (X, 1), NULL_RTX));      \
        !          1329:   if (sparc_x != (X) && memory_address_p (MODE, X))            \
        !          1330:     goto WIN;                                                  \
        !          1331:   if (flag_pic) (X) = legitimize_pic_address (X, MODE, 0);     \
        !          1332:   else if (GET_CODE (X) == PLUS && CONSTANT_ADDRESS_P (XEXP (X, 1)))   \
        !          1333:     (X) = gen_rtx (PLUS, Pmode, XEXP (X, 0),                   \
        !          1334:                   copy_to_mode_reg (Pmode, XEXP (X, 1)));      \
        !          1335:   else if (GET_CODE (X) == PLUS && CONSTANT_ADDRESS_P (XEXP (X, 0)))   \
        !          1336:     (X) = gen_rtx (PLUS, Pmode, XEXP (X, 1),                   \
        !          1337:                   copy_to_mode_reg (Pmode, XEXP (X, 0)));      \
        !          1338:   else if (GET_CODE (X) == SYMBOL_REF || GET_CODE (X) == CONST \
        !          1339:           || GET_CODE (X) == LABEL_REF)                        \
        !          1340:     (X) = gen_rtx (LO_SUM, Pmode,                              \
        !          1341:                   copy_to_mode_reg (Pmode, gen_rtx (HIGH, Pmode, X)), X); \
        !          1342:   if (memory_address_p (MODE, X))                              \
        !          1343:     goto WIN; }
        !          1344: 
        !          1345: /* Go to LABEL if ADDR (a legitimate address expression)
        !          1346:    has an effect that depends on the machine mode it is used for.
        !          1347:    On the SPARC this is never true.  */
        !          1348: 
        !          1349: #define GO_IF_MODE_DEPENDENT_ADDRESS(ADDR,LABEL)
        !          1350: 
        !          1351: /* Specify the machine mode that this machine uses
        !          1352:    for the index in the tablejump instruction.  */
        !          1353: #define CASE_VECTOR_MODE SImode
        !          1354: 
        !          1355: /* Define this if the tablejump instruction expects the table
        !          1356:    to contain offsets from the address of the table.
        !          1357:    Do not define this if the table should contain absolute addresses.  */
        !          1358: /* #define CASE_VECTOR_PC_RELATIVE */
        !          1359: 
        !          1360: /* Specify the tree operation to be used to convert reals to integers.  */
        !          1361: #define IMPLICIT_FIX_EXPR FIX_ROUND_EXPR
        !          1362: 
        !          1363: /* This is the kind of divide that is easiest to do in the general case.  */
        !          1364: #define EASY_DIV_EXPR TRUNC_DIV_EXPR
        !          1365: 
        !          1366: /* Define this as 1 if `char' should by default be signed; else as 0.  */
        !          1367: #define DEFAULT_SIGNED_CHAR 1
        !          1368: 
        !          1369: /* Max number of bytes we can move from memory to memory
        !          1370:    in one reasonably fast instruction.  */
        !          1371: #define MOVE_MAX 8
        !          1372: 
        !          1373: #if 0 /* Sun 4 has matherr, so this is no good.  */
        !          1374: /* This is the value of the error code EDOM for this machine,
        !          1375:    used by the sqrt instruction.  */
        !          1376: #define TARGET_EDOM 33
        !          1377: 
        !          1378: /* This is how to refer to the variable errno.  */
        !          1379: #define GEN_ERRNO_RTX \
        !          1380:   gen_rtx (MEM, SImode, gen_rtx (SYMBOL_REF, Pmode, "errno"))
        !          1381: #endif /* 0 */
        !          1382: 
        !          1383: /* Define if operations between registers always perform the operation
        !          1384:    on the full register even if a narrower mode is specified.  */
        !          1385: #define WORD_REGISTER_OPERATIONS
        !          1386: 
        !          1387: /* Define if loading in MODE, an integral mode narrower than BITS_PER_WORD
        !          1388:    will either zero-extend or sign-extend.  The value of this macro should
        !          1389:    be the code that says which one of the two operations is implicitly
        !          1390:    done, NIL if none.  */
        !          1391: #define LOAD_EXTEND_OP(MODE) ZERO_EXTEND
        !          1392: 
        !          1393: /* Nonzero if access to memory by bytes is slow and undesirable.
        !          1394:    For RISC chips, it means that access to memory by bytes is no
        !          1395:    better than access by words when possible, so grab a whole word
        !          1396:    and maybe make use of that.  */
        !          1397: #define SLOW_BYTE_ACCESS 1
        !          1398: 
        !          1399: /* We assume that the store-condition-codes instructions store 0 for false
        !          1400:    and some other value for true.  This is the value stored for true.  */
        !          1401: 
        !          1402: #define STORE_FLAG_VALUE 1
        !          1403: 
        !          1404: /* When a prototype says `char' or `short', really pass an `int'.  */
        !          1405: #define PROMOTE_PROTOTYPES
        !          1406: 
        !          1407: /* Define this to be nonzero if shift instructions ignore all but the low-order
        !          1408:    few bits. */
        !          1409: #define SHIFT_COUNT_TRUNCATED 1
        !          1410: 
        !          1411: /* Value is 1 if truncating an integer of INPREC bits to OUTPREC bits
        !          1412:    is done just by pretending it is already truncated.  */
        !          1413: #define TRULY_NOOP_TRUNCATION(OUTPREC, INPREC) 1
        !          1414: 
        !          1415: /* Specify the machine mode that pointers have.
        !          1416:    After generation of rtl, the compiler makes no further distinction
        !          1417:    between pointers and any other objects of this machine mode.  */
        !          1418: #define Pmode SImode
        !          1419: 
        !          1420: /* Generate calls to memcpy, memcmp and memset.  */
        !          1421: #define TARGET_MEM_FUNCTIONS
        !          1422: 
        !          1423: /* Add any extra modes needed to represent the condition code.
        !          1424: 
        !          1425:    On the Sparc, we have a "no-overflow" mode which is used when an add or
        !          1426:    subtract insn is used to set the condition code.  Different branches are
        !          1427:    used in this case for some operations.
        !          1428: 
        !          1429:    We also have two modes to indicate that the relevant condition code is
        !          1430:    in the floating-point condition code register.  One for comparisons which
        !          1431:    will generate an exception if the result is unordered (CCFPEmode) and
        !          1432:    one for comparisons which will never trap (CCFPmode).  This really should
        !          1433:    be a separate register, but we don't want to go to 65 registers.  */
        !          1434: #define EXTRA_CC_MODES CC_NOOVmode, CCFPmode, CCFPEmode
        !          1435: 
        !          1436: /* Define the names for the modes specified above.  */
        !          1437: #define EXTRA_CC_NAMES "CC_NOOV", "CCFP", "CCFPE"
        !          1438: 
        !          1439: /* Given a comparison code (EQ, NE, etc.) and the first operand of a COMPARE,
        !          1440:    return the mode to be used for the comparison.  For floating-point,
        !          1441:    CCFP[E]mode is used.  CC_NOOVmode should be used when the first operand is a
        !          1442:    PLUS, MINUS, NEG, or ASHIFT.  CCmode should be used when no special
        !          1443:    processing is needed.  */
        !          1444: #define SELECT_CC_MODE(OP,X,Y) \
        !          1445:   (GET_MODE_CLASS (GET_MODE (X)) == MODE_FLOAT                         \
        !          1446:    ? ((OP == EQ || OP == NE) ? CCFPmode : CCFPEmode)                   \
        !          1447:    : ((GET_CODE (X) == PLUS || GET_CODE (X) == MINUS                   \
        !          1448:        || GET_CODE (X) == NEG || GET_CODE (X) == ASHIFT)               \
        !          1449:       ? CC_NOOVmode : CCmode))
        !          1450: 
        !          1451: /* A function address in a call instruction
        !          1452:    is a byte address (for indexing purposes)
        !          1453:    so give the MEM rtx a byte's mode.  */
        !          1454: #define FUNCTION_MODE SImode
        !          1455: 
        !          1456: /* Define this if addresses of constant functions
        !          1457:    shouldn't be put through pseudo regs where they can be cse'd.
        !          1458:    Desirable on machines where ordinary constants are expensive
        !          1459:    but a CALL with constant address is cheap.  */
        !          1460: #define NO_FUNCTION_CSE
        !          1461: 
        !          1462: /* alloca should avoid clobbering the old register save area.  */
        !          1463: #define SETJMP_VIA_SAVE_AREA
        !          1464: 
        !          1465: /* Define subroutines to call to handle multiply and divide.
        !          1466:    Use the subroutines that Sun's library provides.
        !          1467:    The `*' prevents an underscore from being prepended by the compiler.  */
        !          1468: 
        !          1469: #define DIVSI3_LIBCALL "*.div"
        !          1470: #define UDIVSI3_LIBCALL "*.udiv"
        !          1471: #define MODSI3_LIBCALL "*.rem"
        !          1472: #define UMODSI3_LIBCALL "*.urem"
        !          1473: /* .umul is a little faster than .mul.  */
        !          1474: #define MULSI3_LIBCALL "*.umul"
        !          1475: 
        !          1476: /* Compute the cost of computing a constant rtl expression RTX
        !          1477:    whose rtx-code is CODE.  The body of this macro is a portion
        !          1478:    of a switch statement.  If the code is computed here,
        !          1479:    return it with a return statement.  Otherwise, break from the switch.  */
        !          1480: 
        !          1481: #define CONST_COSTS(RTX,CODE,OUTER_CODE) \
        !          1482:   case CONST_INT:                                              \
        !          1483:     if (INTVAL (RTX) < 0x1000 && INTVAL (RTX) >= -0x1000)      \
        !          1484:       return 0;                                                        \
        !          1485:   case HIGH:                                                   \
        !          1486:     return 2;                                                  \
        !          1487:   case CONST:                                                  \
        !          1488:   case LABEL_REF:                                              \
        !          1489:   case SYMBOL_REF:                                             \
        !          1490:     return 4;                                                  \
        !          1491:   case CONST_DOUBLE:                                           \
        !          1492:     if (GET_MODE (RTX) == DImode)                              \
        !          1493:       if ((XINT (RTX, 3) == 0                                  \
        !          1494:           && (unsigned) XINT (RTX, 2) < 0x1000)                \
        !          1495:          || (XINT (RTX, 3) == -1                               \
        !          1496:              && XINT (RTX, 2) < 0                              \
        !          1497:              && XINT (RTX, 2) >= -0x1000))                     \
        !          1498:        return 0;                                               \
        !          1499:     return 8;
        !          1500: 
        !          1501: /* SPARC offers addressing modes which are "as cheap as a register".
        !          1502:    See sparc.c (or gcc.texinfo) for details.  */
        !          1503: 
        !          1504: #define ADDRESS_COST(RTX) \
        !          1505:   (GET_CODE (RTX) == REG ? 1 : sparc_address_cost (RTX))
        !          1506: 
        !          1507: /* Compute extra cost of moving data between one register class
        !          1508:    and another.  */
        !          1509: #define REGISTER_MOVE_COST(CLASS1, CLASS2) \
        !          1510:   (((CLASS1 == FP_REGS && CLASS2 == GENERAL_REGS) \
        !          1511:     || (CLASS1 == GENERAL_REGS && CLASS2 == FP_REGS)) ? 6 : 2)
        !          1512: 
        !          1513: /* Provide the costs of a rtl expression.  This is in the body of a
        !          1514:    switch on CODE.  The purpose for the cost of MULT is to encourage
        !          1515:    `synth_mult' to find a synthetic multiply when reasonable.
        !          1516: 
        !          1517:    If we need more than 12 insns to do a multiply, then go out-of-line,
        !          1518:    since the call overhead will be < 10% of the cost of the multiply.  */
        !          1519: 
        !          1520: #define RTX_COSTS(X,CODE,OUTER_CODE)                   \
        !          1521:   case MULT:                                           \
        !          1522:     return TARGET_V8 ? COSTS_N_INSNS (5) : COSTS_N_INSNS (25); \
        !          1523:   case DIV:                                            \
        !          1524:   case UDIV:                                           \
        !          1525:   case MOD:                                            \
        !          1526:   case UMOD:                                           \
        !          1527:     return COSTS_N_INSNS (25);                         \
        !          1528:   /* Make FLOAT and FIX more expensive than CONST_DOUBLE,\
        !          1529:      so that cse will favor the latter.  */            \
        !          1530:   case FLOAT:                                          \
        !          1531:   case FIX:                                            \
        !          1532:     return 19;
        !          1533: 
        !          1534: /* Conditional branches with empty delay slots have a length of two.  */
        !          1535: #define ADJUST_INSN_LENGTH(INSN, LENGTH)       \
        !          1536:   if (GET_CODE (INSN) == CALL_INSN                                     \
        !          1537:       || (GET_CODE (INSN) == JUMP_INSN && ! simplejump_p (insn)))      \
        !          1538:     LENGTH += 1;
        !          1539: 
        !          1540: /* Control the assembler format that we output.  */
        !          1541: 
        !          1542: /* Output at beginning of assembler file.  */
        !          1543: 
        !          1544: #define ASM_FILE_START(file)
        !          1545: 
        !          1546: /* Output to assembler file text saying following lines
        !          1547:    may contain character constants, extra white space, comments, etc.  */
        !          1548: 
        !          1549: #define ASM_APP_ON ""
        !          1550: 
        !          1551: /* Output to assembler file text saying following lines
        !          1552:    no longer contain unusual constructs.  */
        !          1553: 
        !          1554: #define ASM_APP_OFF ""
        !          1555: 
        !          1556: #define ASM_LONG       ".word"
        !          1557: #define ASM_SHORT      ".half"
        !          1558: #define ASM_BYTE_OP    ".byte"
        !          1559: 
        !          1560: /* Output before read-only data.  */
        !          1561: 
        !          1562: #define TEXT_SECTION_ASM_OP ".text"
        !          1563: 
        !          1564: /* Output before writable data.  */
        !          1565: 
        !          1566: #define DATA_SECTION_ASM_OP ".data"
        !          1567: 
        !          1568: /* How to refer to registers in assembler output.
        !          1569:    This sequence is indexed by compiler's hard-register-number (see above).  */
        !          1570: 
        !          1571: #define REGISTER_NAMES \
        !          1572: {"%g0", "%g1", "%g2", "%g3", "%g4", "%g5", "%g6", "%g7",               \
        !          1573:  "%o0", "%o1", "%o2", "%o3", "%o4", "%o5", "%sp", "%o7",               \
        !          1574:  "%l0", "%l1", "%l2", "%l3", "%l4", "%l5", "%l6", "%l7",               \
        !          1575:  "%i0", "%i1", "%i2", "%i3", "%i4", "%i5", "%fp", "%i7",               \
        !          1576:  "%f0", "%f1", "%f2", "%f3", "%f4", "%f5", "%f6", "%f7",               \
        !          1577:  "%f8", "%f9", "%f10", "%f11", "%f12", "%f13", "%f14", "%f15",         \
        !          1578:  "%f16", "%f17", "%f18", "%f19", "%f20", "%f21", "%f22", "%f23",       \
        !          1579:  "%f24", "%f25", "%f26", "%f27", "%f28", "%f29", "%f30", "%f31"}
        !          1580: 
        !          1581: /* Define additional names for use in asm clobbers and asm declarations.
        !          1582: 
        !          1583:    We define the fake Condition Code register as an alias for reg 0 (which
        !          1584:    is our `condition code' register), so that condition codes can easily
        !          1585:    be clobbered by an asm.  No such register actually exists.  Condition
        !          1586:    codes are partly stored in the PSR and partly in the FSR.  */
        !          1587: 
        !          1588: #define ADDITIONAL_REGISTER_NAMES      {"ccr", 0, "cc", 0}
        !          1589: 
        !          1590: /* How to renumber registers for dbx and gdb.  */
        !          1591: 
        !          1592: #define DBX_REGISTER_NUMBER(REGNO) (REGNO)
        !          1593: 
        !          1594: /* On Sun 4, this limit is 2048.  We use 1500 to be safe,
        !          1595:    since the length can run past this up to a continuation point.  */
        !          1596: #define DBX_CONTIN_LENGTH 1500
        !          1597: 
        !          1598: /* This is how to output a note to DBX telling it the line number
        !          1599:    to which the following sequence of instructions corresponds.
        !          1600: 
        !          1601:    This is needed for SunOS 4.0, and should not hurt for 3.2
        !          1602:    versions either.  */
        !          1603: #define ASM_OUTPUT_SOURCE_LINE(file, line)             \
        !          1604:   { static int sym_lineno = 1;                         \
        !          1605:     fprintf (file, ".stabn 68,0,%d,LM%d\nLM%d:\n",     \
        !          1606:             line, sym_lineno, sym_lineno);             \
        !          1607:     sym_lineno += 1; }
        !          1608: 
        !          1609: /* This is how to output the definition of a user-level label named NAME,
        !          1610:    such as the label on a static function or variable NAME.  */
        !          1611: 
        !          1612: #define ASM_OUTPUT_LABEL(FILE,NAME)    \
        !          1613:   do { assemble_name (FILE, NAME); fputs (":\n", FILE); } while (0)
        !          1614: 
        !          1615: /* This is how to output a command to make the user-level label named NAME
        !          1616:    defined for reference from other files.  */
        !          1617: 
        !          1618: #define ASM_GLOBALIZE_LABEL(FILE,NAME) \
        !          1619:   do { fputs ("\t.global ", FILE); assemble_name (FILE, NAME); fputs ("\n", FILE);} while (0)
        !          1620: 
        !          1621: /* This is how to output a reference to a user-level label named NAME.
        !          1622:    `assemble_name' uses this.  */
        !          1623: 
        !          1624: #define ASM_OUTPUT_LABELREF(FILE,NAME) \
        !          1625:   fprintf (FILE, "_%s", NAME)
        !          1626: 
        !          1627: /* This is how to output a definition of an internal numbered label where
        !          1628:    PREFIX is the class of label and NUM is the number within the class.  */
        !          1629: 
        !          1630: #define ASM_OUTPUT_INTERNAL_LABEL(FILE,PREFIX,NUM)     \
        !          1631:   fprintf (FILE, "%s%d:\n", PREFIX, NUM)
        !          1632: 
        !          1633: /* This is how to output a reference to an internal numbered label where
        !          1634:    PREFIX is the class of label and NUM is the number within the class.  */
        !          1635: /* FIXME:  This should be used throughout gcc, and documented in the texinfo
        !          1636:    files.  There is no reason you should have to allocate a buffer and
        !          1637:    `sprintf' to reference an internal label (as opposed to defining it).  */
        !          1638: 
        !          1639: #define ASM_OUTPUT_INTERNAL_LABELREF(FILE,PREFIX,NUM)  \
        !          1640:   fprintf (FILE, "%s%d", PREFIX, NUM)
        !          1641: 
        !          1642: /* This is how to store into the string LABEL
        !          1643:    the symbol_ref name of an internal numbered label where
        !          1644:    PREFIX is the class of label and NUM is the number within the class.
        !          1645:    This is suitable for output with `assemble_name'.  */
        !          1646: 
        !          1647: #define ASM_GENERATE_INTERNAL_LABEL(LABEL,PREFIX,NUM)  \
        !          1648:   sprintf (LABEL, "*%s%d", PREFIX, NUM)
        !          1649: 
        !          1650: /* This is how to output an assembler line defining a `double' constant.  */
        !          1651: 
        !          1652: #define ASM_OUTPUT_DOUBLE(FILE,VALUE)                                  \
        !          1653:   {                                                                    \
        !          1654:     long t[2];                                                         \
        !          1655:     REAL_VALUE_TO_TARGET_DOUBLE ((VALUE), t);                          \
        !          1656:     fprintf (FILE, "\t%s\t0x%lx\n\t%s\t0x%lx\n",                       \
        !          1657:             ASM_LONG, t[0], ASM_LONG, t[1]);                           \
        !          1658:   }
        !          1659: 
        !          1660: /* This is how to output an assembler line defining a `float' constant.  */
        !          1661: 
        !          1662: #define ASM_OUTPUT_FLOAT(FILE,VALUE)                                   \
        !          1663:   {                                                                    \
        !          1664:     long t;                                                            \
        !          1665:     REAL_VALUE_TO_TARGET_SINGLE ((VALUE), t);                          \
        !          1666:     fprintf (FILE, "\t%s\t0x%lx\n", ASM_LONG, t);                      \
        !          1667:   }                                                                    \
        !          1668: 
        !          1669: /* This is how to output an assembler line defining a `long double'
        !          1670:    constant.  */
        !          1671: 
        !          1672: #define ASM_OUTPUT_LONG_DOUBLE(FILE,VALUE)                             \
        !          1673:   {                                                                    \
        !          1674:     long t[4];                                                         \
        !          1675:     REAL_VALUE_TO_TARGET_LONG_DOUBLE ((VALUE), t);                     \
        !          1676:     fprintf (FILE, "\t%s\t0x%lx\n\t%s\t0x%lx\n\t%s\t0x%lx\n\t%s\t0x%lx\n", \
        !          1677:       ASM_LONG, t[0], ASM_LONG, t[1], ASM_LONG, t[2], ASM_LONG, t[3]); \
        !          1678:   }
        !          1679: 
        !          1680: /* This is how to output an assembler line defining an `int' constant.  */
        !          1681: 
        !          1682: #define ASM_OUTPUT_INT(FILE,VALUE)  \
        !          1683: ( fprintf (FILE, "\t%s\t", ASM_LONG),          \
        !          1684:   output_addr_const (FILE, (VALUE)),           \
        !          1685:   fprintf (FILE, "\n"))
        !          1686: 
        !          1687: /* This is how to output an assembler line defining a DImode constant.  */
        !          1688: #define ASM_OUTPUT_DOUBLE_INT(FILE,VALUE)  \
        !          1689:   output_double_int (FILE, VALUE)
        !          1690: 
        !          1691: /* Likewise for `char' and `short' constants.  */
        !          1692: 
        !          1693: #define ASM_OUTPUT_SHORT(FILE,VALUE)  \
        !          1694: ( fprintf (FILE, "\t%s\t", ASM_SHORT),         \
        !          1695:   output_addr_const (FILE, (VALUE)),           \
        !          1696:   fprintf (FILE, "\n"))
        !          1697: 
        !          1698: #define ASM_OUTPUT_CHAR(FILE,VALUE)  \
        !          1699: ( fprintf (FILE, "\t%s\t", ASM_BYTE_OP),       \
        !          1700:   output_addr_const (FILE, (VALUE)),           \
        !          1701:   fprintf (FILE, "\n"))
        !          1702: 
        !          1703: /* This is how to output an assembler line for a numeric constant byte.  */
        !          1704: 
        !          1705: #define ASM_OUTPUT_BYTE(FILE,VALUE)  \
        !          1706:   fprintf (FILE, "\t%s\t0x%x\n", ASM_BYTE_OP, (VALUE))
        !          1707: 
        !          1708: /* This is how to output an element of a case-vector that is absolute.  */
        !          1709: 
        !          1710: #define ASM_OUTPUT_ADDR_VEC_ELT(FILE, VALUE)  \
        !          1711: do {                                                                   \
        !          1712:   char label[30];                                                      \
        !          1713:   ASM_GENERATE_INTERNAL_LABEL (label, "L", VALUE);                     \
        !          1714:   fprintf (FILE, "\t.word\t");                                         \
        !          1715:   assemble_name (FILE, label);                                         \
        !          1716:   fprintf (FILE, "\n");                                                        \
        !          1717: } while (0)
        !          1718: 
        !          1719: /* This is how to output an element of a case-vector that is relative.
        !          1720:    (SPARC uses such vectors only when generating PIC.)  */
        !          1721: 
        !          1722: #define ASM_OUTPUT_ADDR_DIFF_ELT(FILE, VALUE, REL)                     \
        !          1723: do {                                                                   \
        !          1724:   char label[30];                                                      \
        !          1725:   ASM_GENERATE_INTERNAL_LABEL (label, "L", VALUE);                     \
        !          1726:   fprintf (FILE, "\t.word\t");                                         \
        !          1727:   assemble_name (FILE, label);                                         \
        !          1728:   fprintf (FILE, "-1b\n");                                             \
        !          1729: } while (0)
        !          1730: 
        !          1731: /* This is how to output an assembler line
        !          1732:    that says to advance the location counter
        !          1733:    to a multiple of 2**LOG bytes.  */
        !          1734: 
        !          1735: #define ASM_OUTPUT_ALIGN(FILE,LOG)     \
        !          1736:   if ((LOG) != 0)                      \
        !          1737:     fprintf (FILE, "\t.align %d\n", (1<<(LOG)))
        !          1738: 
        !          1739: #define ASM_OUTPUT_SKIP(FILE,SIZE)  \
        !          1740:   fprintf (FILE, "\t.skip %u\n", (SIZE))
        !          1741: 
        !          1742: /* This says how to output an assembler line
        !          1743:    to define a global common symbol.  */
        !          1744: 
        !          1745: #define ASM_OUTPUT_COMMON(FILE, NAME, SIZE, ROUNDED)  \
        !          1746: ( fputs ("\t.global ", (FILE)),                        \
        !          1747:   assemble_name ((FILE), (NAME)),              \
        !          1748:   fputs ("\n\t.common ", (FILE)),              \
        !          1749:   assemble_name ((FILE), (NAME)),              \
        !          1750:   fprintf ((FILE), ",%u,\"bss\"\n", (ROUNDED)))
        !          1751: 
        !          1752: /* This says how to output an assembler line
        !          1753:    to define a local common symbol.  */
        !          1754: 
        !          1755: #define ASM_OUTPUT_LOCAL(FILE, NAME, SIZE, ROUNDED)  \
        !          1756: ( fputs ("\n\t.reserve ", (FILE)),             \
        !          1757:   assemble_name ((FILE), (NAME)),              \
        !          1758:   fprintf ((FILE), ",%u,\"bss\"\n", (ROUNDED)))
        !          1759: 
        !          1760: /* Store in OUTPUT a string (made with alloca) containing
        !          1761:    an assembler-name for a local static variable named NAME.
        !          1762:    LABELNO is an integer which is different for each call.  */
        !          1763: 
        !          1764: #define ASM_FORMAT_PRIVATE_NAME(OUTPUT, NAME, LABELNO) \
        !          1765: ( (OUTPUT) = (char *) alloca (strlen ((NAME)) + 10),   \
        !          1766:   sprintf ((OUTPUT), "%s.%d", (NAME), (LABELNO)))
        !          1767: 
        !          1768: #define IDENT_ASM_OP ".ident"
        !          1769: 
        !          1770: /* Output #ident as a .ident.  */
        !          1771: 
        !          1772: #define ASM_OUTPUT_IDENT(FILE, NAME) \
        !          1773:   fprintf (FILE, "\t%s\t\"%s\"\n", IDENT_ASM_OP, NAME);
        !          1774: 
        !          1775: /* Define the parentheses used to group arithmetic operations
        !          1776:    in assembler code.  */
        !          1777: 
        !          1778: #define ASM_OPEN_PAREN "("
        !          1779: #define ASM_CLOSE_PAREN ")"
        !          1780: 
        !          1781: /* Define results of standard character escape sequences.  */
        !          1782: #define TARGET_BELL 007
        !          1783: #define TARGET_BS 010
        !          1784: #define TARGET_TAB 011
        !          1785: #define TARGET_NEWLINE 012
        !          1786: #define TARGET_VT 013
        !          1787: #define TARGET_FF 014
        !          1788: #define TARGET_CR 015
        !          1789: 
        !          1790: #define PRINT_OPERAND_PUNCT_VALID_P(CHAR) \
        !          1791:   ((CHAR) == '#' || (CHAR) == '*' || (CHAR) == '^' || (CHAR) == '(')
        !          1792: 
        !          1793: /* Print operand X (an rtx) in assembler syntax to file FILE.
        !          1794:    CODE is a letter or dot (`z' in `%z0') or 0 if no letter was specified.
        !          1795:    For `%' followed by punctuation, CODE is the punctuation and X is null.  */
        !          1796: 
        !          1797: #define PRINT_OPERAND(FILE, X, CODE) print_operand (FILE, X, CODE)
        !          1798: 
        !          1799: /* Print a memory address as an operand to reference that memory location.  */
        !          1800: 
        !          1801: #define PRINT_OPERAND_ADDRESS(FILE, ADDR)  \
        !          1802: { register rtx base, index = 0;                                        \
        !          1803:   int offset = 0;                                              \
        !          1804:   register rtx addr = ADDR;                                    \
        !          1805:   if (GET_CODE (addr) == REG)                                  \
        !          1806:     fputs (reg_names[REGNO (addr)], FILE);                     \
        !          1807:   else if (GET_CODE (addr) == PLUS)                            \
        !          1808:     {                                                          \
        !          1809:       if (GET_CODE (XEXP (addr, 0)) == CONST_INT)              \
        !          1810:        offset = INTVAL (XEXP (addr, 0)), base = XEXP (addr, 1);\
        !          1811:       else if (GET_CODE (XEXP (addr, 1)) == CONST_INT)         \
        !          1812:        offset = INTVAL (XEXP (addr, 1)), base = XEXP (addr, 0);\
        !          1813:       else                                                     \
        !          1814:        base = XEXP (addr, 0), index = XEXP (addr, 1);          \
        !          1815:       fputs (reg_names[REGNO (base)], FILE);                   \
        !          1816:       if (index == 0)                                          \
        !          1817:        fprintf (FILE, "%+d", offset);                          \
        !          1818:       else if (GET_CODE (index) == REG)                                \
        !          1819:        fprintf (FILE, "+%s", reg_names[REGNO (index)]);        \
        !          1820:       else if (GET_CODE (index) == SYMBOL_REF)                 \
        !          1821:        fputc ('+', FILE), output_addr_const (FILE, index);     \
        !          1822:       else abort ();                                           \
        !          1823:     }                                                          \
        !          1824:   else if (GET_CODE (addr) == MINUS                            \
        !          1825:           && GET_CODE (XEXP (addr, 1)) == LABEL_REF)           \
        !          1826:     {                                                          \
        !          1827:       output_addr_const (FILE, XEXP (addr, 0));                        \
        !          1828:       fputs ("-(", FILE);                                      \
        !          1829:       output_addr_const (FILE, XEXP (addr, 1));                        \
        !          1830:       fputs ("-.)", FILE);                                     \
        !          1831:     }                                                          \
        !          1832:   else if (GET_CODE (addr) == LO_SUM)                          \
        !          1833:     {                                                          \
        !          1834:       output_operand (XEXP (addr, 0), 0);                      \
        !          1835:       fputs ("+%lo(", FILE);                                   \
        !          1836:       output_address (XEXP (addr, 1));                         \
        !          1837:       fputc (')', FILE);                                       \
        !          1838:     }                                                          \
        !          1839:   else if (flag_pic && GET_CODE (addr) == CONST                        \
        !          1840:           && GET_CODE (XEXP (addr, 0)) == MINUS                \
        !          1841:           && GET_CODE (XEXP (XEXP (addr, 0), 1)) == CONST      \
        !          1842:           && GET_CODE (XEXP (XEXP (XEXP (addr, 0), 1), 0)) == MINUS    \
        !          1843:           && XEXP (XEXP (XEXP (XEXP (addr, 0), 1), 0), 1) == pc_rtx)   \
        !          1844:     {                                                          \
        !          1845:       addr = XEXP (addr, 0);                                   \
        !          1846:       output_addr_const (FILE, XEXP (addr, 0));                        \
        !          1847:       /* Group the args of the second CONST in parenthesis.  */        \
        !          1848:       fputs ("-(", FILE);                                      \
        !          1849:       /* Skip past the second CONST--it does nothing for us.  */\
        !          1850:       output_addr_const (FILE, XEXP (XEXP (addr, 1), 0));      \
        !          1851:       /* Close the parenthesis.  */                            \
        !          1852:       fputc (')', FILE);                                       \
        !          1853:     }                                                          \
        !          1854:   else                                                         \
        !          1855:     {                                                          \
        !          1856:       output_addr_const (FILE, addr);                          \
        !          1857:     }                                                          \
        !          1858: }
        !          1859: 
        !          1860: /* Declare functions defined in sparc.c and used in templates.  */
        !          1861: 
        !          1862: extern char *singlemove_string ();
        !          1863: extern char *output_move_double ();
        !          1864: extern char *output_move_quad ();
        !          1865: extern char *output_fp_move_double ();
        !          1866: extern char *output_fp_move_quad ();
        !          1867: extern char *output_block_move ();
        !          1868: extern char *output_scc_insn ();
        !          1869: extern char *output_cbranch ();
        !          1870: extern char *output_return ();
        !          1871: 
        !          1872: /* Defined in flags.h, but insn-emit.c does not include flags.h.  */
        !          1873: 
        !          1874: extern int flag_pic;

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