gcc/config/rx/rx.h

   1 /* GCC backend definitions for the Renesas RX processor.
   2    Copyright (C) 2008, 2009, 2010, 2011 Free Software Foundation, Inc.
   3    Contributed by Red Hat.
   4
   5    This file is part of GCC.
   6
   7    GCC is free software; you can redistribute it and/or modify it
   8    under the terms of the GNU General Public License as published
   9    by the Free Software Foundation; either version 3, or (at your
  10    option) any later version.
  11
  12    GCC is distributed in the hope that it will be useful, but WITHOUT
  13    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
  14    or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
  15    License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with GCC; see the file COPYING3.  If not see
  19    <http://www.gnu.org/licenses/>.  */
  20 \f
  21
  22 #define TARGET_CPU_CPP_BUILTINS()               \
  23   do                                            \
  24     {                                           \
  25       builtin_define ("__RX__");                \
  26       builtin_assert ("cpu=RX");                \
  27       if (rx_cpu_type == RX610)                 \
  28         {                                       \
  29           builtin_define ("__RX610__");         \
  30           builtin_assert ("machine=RX610");     \
  31         }                                       \
  32      else                                       \
  33         builtin_assert ("machine=RX600");       \
  34                                                 \
  35       if (TARGET_BIG_ENDIAN_DATA)               \
  36         builtin_define ("__RX_BIG_ENDIAN__");   \
  37       else                                      \
  38         builtin_define ("__RX_LITTLE_ENDIAN__");\
  39                                                 \
  40       if (TARGET_64BIT_DOUBLES)                 \
  41         builtin_define ("__RX_64BIT_DOUBLES__");\
  42       else                                      \
  43         builtin_define ("__RX_32BIT_DOUBLES__");\
  44                                                 \
  45       if (ALLOW_RX_FPU_INSNS)                   \
  46         builtin_define ("__RX_FPU_INSNS__");    \
  47                                                 \
  48       if (TARGET_AS100_SYNTAX)                  \
  49         builtin_define ("__RX_AS100_SYNTAX__"); \
  50       else                                      \
  51         builtin_define ("__RX_GAS_SYNTAX__");   \
  52     }                                           \
  53   while (0)
  54
  55 #undef  CC1_SPEC
  56 #define CC1_SPEC "\
  57   %{mas100-syntax:%{gdwarf*:%e-mas100-syntax is incompatible with -gdwarf}} \
  58   %{mcpu=rx200:%{fpu:%erx200 cpu does not have FPU hardware}}"
  59
  60 #undef  STARTFILE_SPEC
  61 #define STARTFILE_SPEC "%{pg:gcrt0.o%s}%{!pg:crt0.o%s} crtbegin.o%s"
  62
  63 #undef  ENDFILE_SPEC
  64 #define ENDFILE_SPEC "crtend.o%s crtn.o%s"
  65
  66 #undef  ASM_SPEC
  67 #define ASM_SPEC "\
  68 %{mbig-endian-data:-mbig-endian-data} \
  69 %{m64bit-doubles:-m64bit-doubles} \
  70 %{!m64bit-doubles:-m32bit-doubles} \
  71 %{msmall-data-limit*:-msmall-data-limit} \
  72 %{mrelax:-relax} \
  73 "
  74
  75 #undef  LIB_SPEC
  76 #define LIB_SPEC "                                      \
  77 --start-group                                           \
  78 -lc                                                     \
  79 %{msim:-lsim}%{!msim:-lnosys}                           \
  80 %{fprofile-arcs|fprofile-generate|coverage:-lgcov}      \
  81 --end-group                                             \
  82 %{!T*: %{msim:%Trx-sim.ld}%{!msim:%Trx.ld}}             \
  83 "
  84
  85 #undef  LINK_SPEC
  86 #define LINK_SPEC "%{mbig-endian-data:--oformat elf32-rx-be} %{mrelax:-relax}"
  87 \f
  88
  89 #define BITS_BIG_ENDIAN                 0
  90 #define BYTES_BIG_ENDIAN                TARGET_BIG_ENDIAN_DATA
  91 #define WORDS_BIG_ENDIAN                TARGET_BIG_ENDIAN_DATA
  92
  93 #define UNITS_PER_WORD                  4
  94
  95 #define INT_TYPE_SIZE                   32
  96 #define LONG_TYPE_SIZE                  32
  97 #define LONG_LONG_TYPE_SIZE             64
  98
  99 #define FLOAT_TYPE_SIZE                 32
 100 #define DOUBLE_TYPE_SIZE                (TARGET_64BIT_DOUBLES ? 64 : 32)
 101 #define LONG_DOUBLE_TYPE_SIZE           DOUBLE_TYPE_SIZE
 102
 103 #ifdef __RX_32BIT_DOUBLES__
 104 #define LIBGCC2_HAS_DF_MODE             0
 105 #define LIBGCC2_LONG_DOUBLE_TYPE_SIZE   32
 106 #else
 107 #define LIBGCC2_HAS_DF_MODE             1
 108 #define LIBGCC2_LONG_DOUBLE_TYPE_SIZE   64
 109 #endif
 110
 111 #define DEFAULT_SIGNED_CHAR             0
 112
 113 #define STRICT_ALIGNMENT                1
 114 #define FUNCTION_BOUNDARY               8
 115 #define BIGGEST_ALIGNMENT               32
 116 #define STACK_BOUNDARY                  32
 117 #define PARM_BOUNDARY                   8
 118
 119 #define STACK_GROWS_DOWNWARD            1
 120 #define FRAME_GROWS_DOWNWARD            0
 121 #define FIRST_PARM_OFFSET(FNDECL)       0
 122
 123 #define MAX_REGS_PER_ADDRESS            2
 124
 125 #define Pmode                           SImode
 126 #define POINTER_SIZE                    32
 127 #undef  SIZE_TYPE
 128 #define SIZE_TYPE                       "long unsigned int"
 129 #undef  PTRDIFF_TYPE
 130 #define PTRDIFF_TYPE                    "long int"
 131 #undef  WCHAR_TYPE
 132 #define WCHAR_TYPE                      "long int"
 133 #undef  WCHAR_TYPE_SIZE
 134 #define WCHAR_TYPE_SIZE                 BITS_PER_WORD
 135 #define POINTERS_EXTEND_UNSIGNED        1
 136 #define FUNCTION_MODE                   QImode
 137 #define CASE_VECTOR_MODE                Pmode
 138 #define WORD_REGISTER_OPERATIONS        1
 139 #define HAS_LONG_COND_BRANCH            0
 140 #define HAS_LONG_UNCOND_BRANCH          0
 141
 142 #define MOVE_MAX                        4
 143 #define STARTING_FRAME_OFFSET           0
 144
 145 #define TRULY_NOOP_TRUNCATION(OUTPREC, INPREC)   1
 146
 147 #define LEGITIMATE_CONSTANT_P(X)        rx_is_legitimate_constant (X)
 148
 149 #define HAVE_PRE_DECCREMENT             1
 150 #define HAVE_POST_INCREMENT             1
 151
 152 #define MOVE_RATIO(SPEED)               ((SPEED) ? 4 : 2)
 153 #define SLOW_BYTE_ACCESS                1
 154
 155 #define STORE_FLAG_VALUE                1
 156 #define LOAD_EXTEND_OP(MODE)            SIGN_EXTEND
 157 #define SHORT_IMMEDIATES_SIGN_EXTEND    1
 158 \f
 159 enum reg_class
 160 {
 161   NO_REGS,                      /* No registers in set.  */
 162   GR_REGS,                      /* Integer registers.  */
 163   ALL_REGS,                     /* All registers.  */
 164   LIM_REG_CLASSES               /* Max value + 1.  */
 165 };
 166
 167 #define REG_CLASS_NAMES                                 \
 168 {                                                       \
 169   "NO_REGS",                                            \
 170   "GR_REGS",                                            \
 171   "ALL_REGS"                                            \
 172 }
 173
 174 #define REG_CLASS_CONTENTS                              \
 175 {                                                       \
 176   { 0x00000000 },       /* No registers,  */            \
 177   { 0x0000ffff },       /* Integer registers.  */       \
 178   { 0x0000ffff }        /* All registers.  */           \
 179 }
 180
 181 #define SMALL_REGISTER_CLASSES          0
 182 #define N_REG_CLASSES                   (int) LIM_REG_CLASSES
 183 #define CLASS_MAX_NREGS(CLASS, MODE)    ((GET_MODE_SIZE (MODE) \
 184                                           + UNITS_PER_WORD - 1) \
 185                                          / UNITS_PER_WORD)
 186
 187 #define GENERAL_REGS                    GR_REGS
 188 #define BASE_REG_CLASS                  GR_REGS
 189 #define INDEX_REG_CLASS                 GR_REGS
 190
 191 #define FIRST_PSEUDO_REGISTER           17
 192
 193 #define REGNO_REG_CLASS(REGNO)          ((REGNO) < FIRST_PSEUDO_REGISTER \
 194                                          ? GR_REGS : NO_REGS)
 195
 196 #define STACK_POINTER_REGNUM            0
 197 #define FUNC_RETURN_REGNUM              1
 198 #define FRAME_POINTER_REGNUM            6
 199 #define ARG_POINTER_REGNUM              7
 200 #define STATIC_CHAIN_REGNUM             8
 201 #define TRAMPOLINE_TEMP_REGNUM          9
 202 #define STRUCT_VAL_REGNUM               15
 203 #define CC_REGNUM                       16
 204
 205 /* This is the register which is used to hold the address of the start
 206    of the small data area, if that feature is being used.  Note - this
 207    register must not be call_used because otherwise library functions
 208    that are compiled without small data support might clobber it.
 209
 210    FIXME: The function gcc/config/rx/rx.c:rx_gen_move_template() has a
 211    built in copy of this register's name, rather than constructing the
 212    name from this #define.  */
 213 #define GP_BASE_REGNUM                  13
 214
 215 #define ELIMINABLE_REGS                                 \
 216 {{ ARG_POINTER_REGNUM,   STACK_POINTER_REGNUM },        \
 217  { ARG_POINTER_REGNUM,   FRAME_POINTER_REGNUM },        \
 218  { FRAME_POINTER_REGNUM, STACK_POINTER_REGNUM }}
 219
 220 #define INITIAL_ELIMINATION_OFFSET(FROM, TO, OFFSET)    \
 221   (OFFSET) = rx_initial_elimination_offset ((FROM), (TO))
 222
 223
 224 #define FUNCTION_ARG_REGNO_P(N)         (((N) >= 1) && ((N) <= 4))
 225 #define FUNCTION_VALUE_REGNO_P(N)       ((N) == FUNC_RETURN_REGNUM)
 226 #define DEFAULT_PCC_STRUCT_RETURN       0
 227
 228 #define FIXED_REGISTERS                                 \
 229 {                                                       \
 230   1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1     \
 231 }
 232
 233 #define CALL_USED_REGISTERS                             \
 234 {                                                       \
 235   1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1     \
 236 }
 237
 238 #define LIBCALL_VALUE(MODE)                             \
 239   gen_rtx_REG (((GET_MODE_CLASS (MODE) != MODE_INT      \
 240                  || COMPLEX_MODE_P (MODE)               \
 241                  || GET_MODE_SIZE (MODE) >= 4)          \
 242                 ? (MODE)                                \
 243                 : SImode),                              \
 244                FUNC_RETURN_REGNUM)
 245
 246 /* Order of allocation of registers.  */
 247
 248 #define REG_ALLOC_ORDER                                         \
 249 {  7,  10,  11,  12,  13,  14,  4,  3,  2,  1, 9, 8, 6, 5, 15   \
 250 }
 251
 252 #define REGNO_IN_RANGE(REGNO, MIN, MAX)         \
 253   (IN_RANGE ((REGNO), (MIN), (MAX))             \
 254    || (reg_renumber != NULL                     \
 255        && reg_renumber[(REGNO)] >= (MIN)        \
 256        && reg_renumber[(REGNO)] <= (MAX)))
 257
 258 #ifdef REG_OK_STRICT
 259 #define REGNO_OK_FOR_BASE_P(regno)      REGNO_IN_RANGE (regno, 0, 15)
 260 #else
 261 #define REGNO_OK_FOR_BASE_P(regno)      1
 262 #endif
 263
 264 #define REGNO_OK_FOR_INDEX_P(regno)     REGNO_OK_FOR_BASE_P (regno)
 265
 266 #define RTX_OK_FOR_BASE(X, STRICT)                              \
 267   ((STRICT) ?                                                   \
 268    (   (REG_P (X)                                               \
 269         && REGNO_IN_RANGE (REGNO (X), 0, 15))                   \
 270     || (GET_CODE (X) == SUBREG                                  \
 271         && REG_P (SUBREG_REG (X))                               \
 272         && REGNO_IN_RANGE (REGNO (SUBREG_REG (X)), 0, 15)))     \
 273    :                                                            \
 274     ( (REG_P (X)                                                \
 275        || (GET_CODE (X) == SUBREG                               \
 276            && REG_P (SUBREG_REG (X))))))
 277 \f
 278
 279 #define RETURN_ADDR_RTX(COUNT, FRAMEADDR)                               \
 280   ((COUNT) == 0                                                         \
 281    ? gen_rtx_MEM (Pmode, gen_rtx_PLUS (Pmode, arg_pointer_rtx, GEN_INT (-4))) \
 282    : NULL_RTX)
 283
 284 #define INCOMING_RETURN_ADDR_RTX        gen_rtx_MEM (Pmode, stack_pointer_rtx)
 285
 286 #define ACCUMULATE_OUTGOING_ARGS        1
 287
 288 typedef unsigned int CUMULATIVE_ARGS;
 289
 290 #define INIT_CUMULATIVE_ARGS(CUM, FNTYPE, LIBNAME, INDIRECT, N_NAMED_ARGS) \
 291   (CUM) = 0
 292
 293 \f
 294 #define TRAMPOLINE_SIZE         (! TARGET_BIG_ENDIAN_DATA ? 14 : 20)
 295 #define TRAMPOLINE_ALIGNMENT    32
 296 \f
 297 #define NO_PROFILE_COUNTERS     1
 298 #define PROFILE_BEFORE_PROLOGUE 1
 299
 300 #define FUNCTION_PROFILER(FILE, LABELNO)        \
 301     fprintf (FILE, "\tbsr\t__mcount\n");
 302 \f
 303
 304 #define HARD_REGNO_NREGS(REGNO, MODE)   CLASS_MAX_NREGS (0, MODE)
 305
 306 #define HARD_REGNO_MODE_OK(REGNO, MODE)                         \
 307   REGNO_REG_CLASS (REGNO) == GR_REGS
 308
 309 #define MODES_TIEABLE_P(MODE1, MODE2)                           \
 310   (   (   GET_MODE_CLASS (MODE1) == MODE_FLOAT                  \
 311        || GET_MODE_CLASS (MODE1) == MODE_COMPLEX_FLOAT)         \
 312    == (   GET_MODE_CLASS (MODE2) == MODE_FLOAT                  \
 313        || GET_MODE_CLASS (MODE2) == MODE_COMPLEX_FLOAT))
 314 \f
 315
 316 #define REGISTER_NAMES                                          \
 317   {                                                             \
 318     "r0",  "r1",  "r2",   "r3",   "r4",   "r5",   "r6",   "r7", \
 319       "r8",  "r9",  "r10",  "r11",  "r12",  "r13",  "r14",  "r15", "cc" \
 320   }
 321
 322 #define ADDITIONAL_REGISTER_NAMES       \
 323 {                                       \
 324     { "sp",    STACK_POINTER_REGNUM }   \
 325   , { "fp",    FRAME_POINTER_REGNUM }   \
 326   , { "arg",   ARG_POINTER_REGNUM }     \
 327   , { "chain", STATIC_CHAIN_REGNUM }    \
 328 }
 329
 330 #define DATA_SECTION_ASM_OP                             \
 331   (TARGET_AS100_SYNTAX ? "\t.SECTION D,DATA"            \
 332    : "\t.section D,\"aw\",@progbits\n\t.p2align 2")
 333
 334 #define SDATA_SECTION_ASM_OP                            \
 335   (TARGET_AS100_SYNTAX ? "\t.SECTION D_2,DATA,ALIGN=2"  \
 336    : "\t.section D_2,\"aw\",@progbits\n\t.p2align 1")
 337
 338 #undef  READONLY_DATA_SECTION_ASM_OP
 339 #define READONLY_DATA_SECTION_ASM_OP                    \
 340   (TARGET_AS100_SYNTAX ? "\t.SECTION C,ROMDATA,ALIGN=4" \
 341    : "\t.section C,\"a\",@progbits\n\t.p2align 2")
 342
 343 #define BSS_SECTION_ASM_OP                              \
 344   (TARGET_AS100_SYNTAX ? "\t.SECTION B,DATA,ALIGN=4"    \
 345    : "\t.section B,\"w\",@nobits\n\t.p2align 2")
 346
 347 #define SBSS_SECTION_ASM_OP                             \
 348   (TARGET_AS100_SYNTAX ? "\t.SECTION B_2,DATA,ALIGN=2"  \
 349    : "\t.section B_2,\"w\",@nobits\n\t.p2align 1")
 350
 351 /* The following definitions are conditional depending upon whether the
 352    compiler is being built or crtstuff.c is being compiled by the built
 353    compiler.  */
 354 #if defined CRT_BEGIN || defined CRT_END
 355 # ifdef __RX_AS100_SYNTAX
 356 #  define TEXT_SECTION_ASM_OP         "\t.SECTION P,CODE"
 357 #  define CTORS_SECTION_ASM_OP        "\t.SECTION init_array,CODE"
 358 #  define DTORS_SECTION_ASM_OP        "\t.SECTION fini_array,CODE"
 359 #  define INIT_ARRAY_SECTION_ASM_OP   "\t.SECTION init_array,CODE"
 360 #  define FINI_ARRAY_SECTION_ASM_OP   "\t.SECTION fini_array,CODE"
 361 # else
 362 #  define TEXT_SECTION_ASM_OP         "\t.section P,\"ax\""
 363 #  define CTORS_SECTION_ASM_OP        \
 364   "\t.section\t.init_array,\"aw\",@init_array"
 365 #  define DTORS_SECTION_ASM_OP        \
 366   "\t.section\t.fini_array,\"aw\",@fini_array"
 367 #  define INIT_ARRAY_SECTION_ASM_OP   \
 368   "\t.section\t.init_array,\"aw\",@init_array"
 369 #  define FINI_ARRAY_SECTION_ASM_OP   \
 370   "\t.section\t.fini_array,\"aw\",@fini_array"
 371 # endif
 372 #else
 373 # define TEXT_SECTION_ASM_OP          \
 374   (TARGET_AS100_SYNTAX ? "\t.SECTION P,CODE" : "\t.section P,\"ax\"")
 375
 376 # define CTORS_SECTION_ASM_OP                         \
 377   (TARGET_AS100_SYNTAX ? "\t.SECTION init_array,CODE" \
 378    : "\t.section\t.init_array,\"aw\",@init_array")
 379
 380 # define DTORS_SECTION_ASM_OP                         \
 381   (TARGET_AS100_SYNTAX ? "\t.SECTION fini_array,CODE" \
 382    : "\t.section\t.fini_array,\"aw\",@fini_array")
 383
 384 # define INIT_ARRAY_SECTION_ASM_OP                    \
 385   (TARGET_AS100_SYNTAX ? "\t.SECTION init_array,CODE" \
 386    : "\t.section\t.init_array,\"aw\",@init_array")
 387
 388 # define FINI_ARRAY_SECTION_ASM_OP                    \
 389   (TARGET_AS100_SYNTAX ? "\t.SECTION fini_array,CODE" \
 390    : "\t.section\t.fini_array,\"aw\",@fini_array")
 391 #endif
 392
 393 #define GLOBAL_ASM_OP           \
 394   (TARGET_AS100_SYNTAX ? "\t.GLB\t" : "\t.global\t")
 395 #define ASM_COMMENT_START       " ;"
 396 #define ASM_APP_ON              ""
 397 #define ASM_APP_OFF             ""
 398 #define LOCAL_LABEL_PREFIX      "L"
 399 #undef  USER_LABEL_PREFIX
 400 #define USER_LABEL_PREFIX       "_"
 401
 402 #define LABEL_ALIGN_AFTER_BARRIER(x)            rx_align_for_label ()
 403
 404 #define ASM_OUTPUT_MAX_SKIP_ALIGN(STREAM, LOG, MAX_SKIP)        \
 405   do                                            \
 406     {                                           \
 407       if ((LOG) == 0 || (MAX_SKIP) == 0)        \
 408         break;                                  \
 409       if (TARGET_AS100_SYNTAX)                  \
 410         {                                       \
 411           if ((LOG) >= 2)                       \
 412             fprintf (STREAM, "\t.ALIGN 4\t; %d alignment actually requested\n", 1 << (LOG)); \
 413           else                                  \
 414             fprintf (STREAM, "\t.ALIGN 2\n");   \
 415         }                                       \
 416       else                                      \
 417         fprintf (STREAM, "\t.balign %d,3,%d\n", 1 << (LOG), (MAX_SKIP));        \
 418     }                                           \
 419   while (0)
 420
 421 #define ASM_OUTPUT_ALIGN(STREAM, LOG)           \
 422   do                                            \
 423     {                                           \
 424       if ((LOG) == 0)                           \
 425         break;                                  \
 426       if (TARGET_AS100_SYNTAX)                  \
 427         {                                       \
 428           if ((LOG) >= 2)                       \
 429             fprintf (STREAM, "\t.ALIGN 4\t; %d alignment actually requested\n", 1 << (LOG)); \
 430           else                                  \
 431             fprintf (STREAM, "\t.ALIGN 2\n");   \
 432         }                                       \
 433       else                                      \
 434         fprintf (STREAM, "\t.balign %d\n", 1 << (LOG)); \
 435     }                                           \
 436   while (0)
 437
 438 #define ASM_OUTPUT_ADDR_VEC_ELT(FILE, VALUE) \
 439   fprintf (FILE, TARGET_AS100_SYNTAX ? "\t.LWORD L%d\n" : "\t.long .L%d\n", \
 440            VALUE)
 441
 442 /* This is how to output an element of a case-vector that is relative.
 443    Note: The local label referenced by the "3b" below is emitted by
 444    the tablejump insn.  */
 445
 446 #define ASM_OUTPUT_ADDR_DIFF_ELT(FILE, BODY, VALUE, REL) \
 447   fprintf (FILE, TARGET_AS100_SYNTAX \
 448            ? "\t.LWORD L%d - ?-\n" : "\t.long .L%d - 1b\n", VALUE)
 449
 450 #define ASM_OUTPUT_SIZE_DIRECTIVE(STREAM, NAME, SIZE)                   \
 451   do                                                                    \
 452     {                                                                   \
 453       HOST_WIDE_INT size_ = (SIZE);                                     \
 454                                                                         \
 455       /* The as100 assembler does not have an equivalent of the SVR4    \
 456          .size pseudo-op.  */                                           \
 457       if (TARGET_AS100_SYNTAX)                                          \
 458         break;                                                          \
 459                                                                         \
 460       fputs (SIZE_ASM_OP, STREAM);                                      \
 461       assemble_name (STREAM, NAME);                                     \
 462       fprintf (STREAM, ", " HOST_WIDE_INT_PRINT_DEC "\n", size_);       \
 463     }                                                                   \
 464   while (0)
 465
 466 #define ASM_OUTPUT_MEASURED_SIZE(STREAM, NAME)                          \
 467   do                                                                    \
 468     {                                                                   \
 469       /* The as100 assembler does not have an equivalent of the SVR4    \
 470          .size pseudo-op.  */                                           \
 471       if (TARGET_AS100_SYNTAX)                                          \
 472         break;                                                          \
 473       fputs (SIZE_ASM_OP, STREAM);                                      \
 474       assemble_name (STREAM, NAME);                                     \
 475       fputs (", .-", STREAM);                                           \
 476       assemble_name (STREAM, NAME);                                     \
 477       putc ('\n', STREAM);                                              \
 478     }                                                                   \
 479   while (0)
 480
 481 #define ASM_OUTPUT_TYPE_DIRECTIVE(STREAM, NAME, TYPE)                   \
 482   do                                                                    \
 483     {                                                                   \
 484       /* The as100 assembler does not have an equivalent of the SVR4    \
 485          .size pseudo-op.  */                                           \
 486       if (TARGET_AS100_SYNTAX)                                          \
 487         break;                                                          \
 488       fputs (TYPE_ASM_OP, STREAM);                                      \
 489       assemble_name (STREAM, NAME);                                     \
 490       fputs (", ", STREAM);                                             \
 491       fprintf (STREAM, TYPE_OPERAND_FMT, TYPE);                         \
 492       putc ('\n', STREAM);                                              \
 493     }                                                                   \
 494   while (0)
 495
 496 #undef  ASM_GENERATE_INTERNAL_LABEL
 497 #define ASM_GENERATE_INTERNAL_LABEL(LABEL, PREFIX, NUM)         \
 498   do                                                            \
 499     {                                                           \
 500       sprintf (LABEL, TARGET_AS100_SYNTAX ? "*%s%u" : "*.%s%u", \
 501                PREFIX, (unsigned) (NUM));                       \
 502     }                                                           \
 503   while (0)
 504
 505 #undef  ASM_OUTPUT_EXTERNAL
 506 #define ASM_OUTPUT_EXTERNAL(FILE, DECL, NAME)                   \
 507   do                                                            \
 508     {                                                           \
 509       if (TARGET_AS100_SYNTAX)                                  \
 510         targetm.asm_out.globalize_label (FILE, NAME);           \
 511       default_elf_asm_output_external (FILE, DECL, NAME);       \
 512     }                                                           \
 513   while (0)
 514
 515 #undef  ASM_OUTPUT_ALIGNED_COMMON
 516 #define ASM_OUTPUT_ALIGNED_COMMON(FILE, NAME, SIZE, ALIGN)              \
 517   do                                                                    \
 518     {                                                                   \
 519       if (TARGET_AS100_SYNTAX)                                          \
 520         {                                                               \
 521           fprintf ((FILE), "\t.GLB\t");                                 \
 522           assemble_name ((FILE), (NAME));                               \
 523           fprintf ((FILE), "\n");                                       \
 524           assemble_name ((FILE), (NAME));                               \
 525           switch ((ALIGN) / BITS_PER_UNIT)                              \
 526             {                                                           \
 527             case 4:                                                     \
 528               fprintf ((FILE), ":\t.BLKL\t"HOST_WIDE_INT_PRINT_UNSIGNED"\n",\
 529                        (SIZE) / 4);                                     \
 530               break;                                                    \
 531             case 2:                                                     \
 532               fprintf ((FILE), ":\t.BLKW\t"HOST_WIDE_INT_PRINT_UNSIGNED"\n",\
 533                        (SIZE) / 2);                                     \
 534               break;                                                    \
 535             default:                                                    \
 536               fprintf ((FILE), ":\t.BLKB\t"HOST_WIDE_INT_PRINT_UNSIGNED"\n",\
 537                        (SIZE));                                         \
 538               break;                                                    \
 539             }                                                           \
 540         }                                                               \
 541       else                                                              \
 542         {                                                               \
 543           fprintf ((FILE), "%s", COMMON_ASM_OP);                        \
 544           assemble_name ((FILE), (NAME));                               \
 545           fprintf ((FILE), ","HOST_WIDE_INT_PRINT_UNSIGNED",%u\n",      \
 546                    (SIZE), (ALIGN) / BITS_PER_UNIT);                    \
 547         }                                                               \
 548     }                                                                   \
 549   while (0)
 550
 551 #undef  SKIP_ASM_OP
 552 #define SKIP_ASM_OP   (TARGET_AS100_SYNTAX ? "\t.BLKB\t" : "\t.zero\t")
 553
 554 #undef  ASM_OUTPUT_LIMITED_STRING
 555 #define ASM_OUTPUT_LIMITED_STRING(FILE, STR)            \
 556   do                                                    \
 557     {                                                   \
 558       const unsigned char *_limited_str =               \
 559         (const unsigned char *) (STR);                  \
 560       unsigned ch;                                      \
 561                                                         \
 562       fprintf ((FILE), TARGET_AS100_SYNTAX              \
 563                ? "\t.BYTE\t\"" : "\t.string\t\"");      \
 564                                                         \
 565       for (; (ch = *_limited_str); _limited_str++)      \
 566         {                                               \
 567           int escape;                                   \
 568                                                         \
 569           switch (escape = ESCAPES[ch])                 \
 570             {                                           \
 571             case 0:                                     \
 572               putc (ch, (FILE));                        \
 573               break;                                    \
 574             case 1:                                     \
 575               fprintf ((FILE), "\\%03o", ch);           \
 576               break;                                    \
 577             default:                                    \
 578               putc ('\\', (FILE));                      \
 579               putc (escape, (FILE));                    \
 580               break;                                    \
 581             }                                           \
 582         }                                               \
 583                                                         \
 584       fprintf ((FILE), TARGET_AS100_SYNTAX ? "\"\n\t.BYTE\t0\n" : "\"\n");\
 585     }                                                   \
 586   while (0)
 587
 588 #undef  IDENT_ASM_OP
 589 #define IDENT_ASM_OP  (TARGET_AS100_SYNTAX \
 590                        ? "\t.END\t; Built by: ": "\t.ident\t")
 591
 592 /* For PIC put jump tables into the text section so that the offsets that
 593    they contain are always computed between two same-section symbols.  */
 594 #define JUMP_TABLES_IN_TEXT_SECTION     (flag_pic)
 595 \f
 596 /* This is a version of REG_P that also returns TRUE for SUBREGs.  */
 597 #define RX_REG_P(rtl) (REG_P (rtl) || GET_CODE (rtl) == SUBREG)
 598
 599 /* Like REG_P except that this macro is true for SET expressions.  */
 600 #define SET_P(rtl)    (GET_CODE (rtl) == SET)
 601 \f
 602 /* The AS100 assembler does not support .leb128 and .uleb128, but
 603    the compiler-build-time configure tests will have enabled their
 604    use because GAS supports them.  So default to generating STABS
 605    debug information instead of DWARF2 when generating AS100
 606    compatible output.  */
 607 #undef  PREFERRED_DEBUGGING_TYPE
 608 #define PREFERRED_DEBUGGING_TYPE (TARGET_AS100_SYNTAX \
 609                                   ? DBX_DEBUG : DWARF2_DEBUG)
 610
 611 #define INCOMING_FRAME_SP_OFFSET                4
 612 #define ARG_POINTER_CFA_OFFSET(FNDECL)          4
 613 #define FRAME_POINTER_CFA_OFFSET(FNDECL)        4
 614 \f
 615 #define TARGET_USE_FPU          (! TARGET_NO_USE_FPU)
 616
 617 /* This macro is used to decide when RX FPU instructions can be used.  */
 618 #define ALLOW_RX_FPU_INSNS      (TARGET_USE_FPU)
 619
 620 #define BRANCH_COST(SPEED,PREDICT)       1
 621 #define REGISTER_MOVE_COST(MODE,FROM,TO) 2
 622
 623 #define SELECT_CC_MODE(OP,X,Y)  rx_select_cc_mode(OP, X, Y)
 624
 625 #define ADJUST_INSN_LENGTH(INSN,LENGTH)                         \
 626   do                                                            \
 627     {                                                           \
 628       (LENGTH) = rx_adjust_insn_length ((INSN), (LENGTH));      \
 629     }                                                           \
 630   while (0)