gcc/config/rx/rx.h

   1 /* GCC backend definitions for the Renesas RX processor.
   2    Copyright (C) 2008, 2009, 2010 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 enum rx_cpu_types
  56 {
  57   RX600,
  58   RX610,
  59   RX200
  60 };
  61
  62 extern enum rx_cpu_types  rx_cpu_type;
  63
  64 #undef  CC1_SPEC
  65 #define CC1_SPEC "\
  66   %{mas100-syntax:%{gdwarf*:%e-mas100-syntax is incompatible with -gdwarf}} \
  67   %{mcpu=rx200:%{fpu:%erx200 cpu does not have FPU hardware}}"
  68
  69 #undef  STARTFILE_SPEC
  70 #define STARTFILE_SPEC "%{pg:gcrt0.o%s}%{!pg:crt0.o%s} crtbegin.o%s"
  71
  72 #undef  ENDFILE_SPEC
  73 #define ENDFILE_SPEC "crtend.o%s crtn.o%s"
  74
  75 #undef  ASM_SPEC
  76 #define ASM_SPEC "\
  77 %{mbig-endian-data:-mbig-endian-data} \
  78 %{m64bit-doubles:-m64bit-doubles} \
  79 %{!m64bit-doubles:-m32bit-doubles} \
  80 %{msmall-data-limit*:-msmall-data-limit} \
  81 %{mrelax:-relax} \
  82 "
  83
  84 #undef  LIB_SPEC
  85 #define LIB_SPEC "                                      \
  86 --start-group                                           \
  87 -lc                                                     \
  88 %{msim*:-lsim}%{!msim*:-lnosys}                         \
  89 %{fprofile-arcs|fprofile-generate|coverage:-lgcov}      \
  90 --end-group                                             \
  91 %{!T*: %{msim*:%Trx-sim.ld}%{!msim*:%Trx.ld}}           \
  92 "
  93
  94 #undef  LINK_SPEC
  95 #define LINK_SPEC "%{mbig-endian-data:--oformat elf32-rx-be} %{mrelax:-relax}"
  96 \f
  97
  98 #define BITS_BIG_ENDIAN                 0
  99 #define BYTES_BIG_ENDIAN                TARGET_BIG_ENDIAN_DATA
 100 #define WORDS_BIG_ENDIAN                TARGET_BIG_ENDIAN_DATA
 101
 102 #define UNITS_PER_WORD                  4
 103
 104 #define INT_TYPE_SIZE                   32
 105 #define LONG_TYPE_SIZE                  32
 106 #define LONG_LONG_TYPE_SIZE             64
 107
 108 #define FLOAT_TYPE_SIZE                 32
 109 #define DOUBLE_TYPE_SIZE                (TARGET_64BIT_DOUBLES ? 64 : 32)
 110 #define LONG_DOUBLE_TYPE_SIZE           DOUBLE_TYPE_SIZE
 111
 112 #ifdef __RX_32BIT_DOUBLES__
 113 #define LIBGCC2_HAS_DF_MODE             0
 114 #define LIBGCC2_LONG_DOUBLE_TYPE_SIZE   32
 115 #else
 116 #define LIBGCC2_HAS_DF_MODE             1
 117 #define LIBGCC2_LONG_DOUBLE_TYPE_SIZE   64
 118 #endif
 119
 120 #define DEFAULT_SIGNED_CHAR             0
 121
 122 #define STRICT_ALIGNMENT                1
 123 #define FUNCTION_BOUNDARY               8
 124 #define BIGGEST_ALIGNMENT               32
 125 #define STACK_BOUNDARY                  32
 126 #define PARM_BOUNDARY                   8
 127
 128 #define STACK_GROWS_DOWNWARD            1
 129 #define FRAME_GROWS_DOWNWARD            0
 130 #define FIRST_PARM_OFFSET(FNDECL)       0
 131
 132 #define MAX_REGS_PER_ADDRESS            2
 133
 134 #define Pmode                           SImode
 135 #define POINTER_SIZE                    32
 136 #undef  SIZE_TYPE
 137 #define SIZE_TYPE                       "long unsigned int"
 138 #undef  PTRDIFF_TYPE
 139 #define PTRDIFF_TYPE                    "long int"
 140 #define POINTERS_EXTEND_UNSIGNED        1
 141 #define FUNCTION_MODE                   QImode
 142 #define CASE_VECTOR_MODE                Pmode
 143 #define WORD_REGISTER_OPERATIONS        1
 144 #define HAS_LONG_COND_BRANCH            0
 145 #define HAS_LONG_UNCOND_BRANCH          0
 146
 147 #define MOVE_MAX                        4
 148 #define STARTING_FRAME_OFFSET           0
 149
 150 #define TRULY_NOOP_TRUNCATION(OUTPREC, INPREC)   1
 151
 152 #define LEGITIMATE_CONSTANT_P(X)        rx_is_legitimate_constant (X)
 153
 154 #define HAVE_PRE_DECCREMENT             1
 155 #define HAVE_POST_INCREMENT             1
 156
 157 #define MOVE_RATIO(SPEED)               ((SPEED) ? 4 : 2)
 158 #define SLOW_BYTE_ACCESS                1
 159
 160 #define STORE_FLAG_VALUE                1
 161 #define LOAD_EXTEND_OP(MODE)            SIGN_EXTEND
 162 #define SHORT_IMMEDIATES_SIGN_EXTEND    1
 163 \f
 164 enum reg_class
 165 {
 166   NO_REGS,                      /* No registers in set.  */
 167   GR_REGS,                      /* Integer registers.  */
 168   ALL_REGS,                     /* All registers.  */
 169   LIM_REG_CLASSES               /* Max value + 1.  */
 170 };
 171
 172 #define REG_CLASS_NAMES                                 \
 173 {                                                       \
 174   "NO_REGS",                                            \
 175   "GR_REGS",                                            \
 176   "ALL_REGS"                                            \
 177 }
 178
 179 #define REG_CLASS_CONTENTS                              \
 180 {                                                       \
 181   { 0x00000000 },       /* No registers,  */            \
 182   { 0x0000ffff },       /* Integer registers.  */       \
 183   { 0x0000ffff }        /* All registers.  */           \
 184 }
 185
 186 #define IRA_COVER_CLASSES                               \
 187   {                                                     \
 188     GR_REGS, LIM_REG_CLASSES                            \
 189   }
 190
 191 #define SMALL_REGISTER_CLASSES          0
 192 #define N_REG_CLASSES                   (int) LIM_REG_CLASSES
 193 #define CLASS_MAX_NREGS(CLASS, MODE)    ((GET_MODE_SIZE (MODE) \
 194                                           + UNITS_PER_WORD - 1) \
 195                                          / UNITS_PER_WORD)
 196
 197 #define GENERAL_REGS                    GR_REGS
 198 #define BASE_REG_CLASS                  GR_REGS
 199 #define INDEX_REG_CLASS                 GR_REGS
 200
 201 #define FIRST_PSEUDO_REGISTER           17
 202
 203 #define REGNO_REG_CLASS(REGNO)          ((REGNO) < FIRST_PSEUDO_REGISTER \
 204                                          ? GR_REGS : NO_REGS)
 205
 206 #define STACK_POINTER_REGNUM            0
 207 #define FUNC_RETURN_REGNUM              1
 208 #define FRAME_POINTER_REGNUM            6
 209 #define ARG_POINTER_REGNUM              7
 210 #define STATIC_CHAIN_REGNUM             8
 211 #define TRAMPOLINE_TEMP_REGNUM          9
 212 #define STRUCT_VAL_REGNUM               15
 213 #define CC_REGNUM                       16
 214
 215 /* This is the register which is used to hold the address of the start
 216    of the small data area, if that feature is being used.  Note - this
 217    register must not be call_used because otherwise library functions
 218    that are compiled without small data support might clobber it.
 219
 220    FIXME: The function gcc/config/rx/rx.c:rx_gen_move_template() has a
 221    built in copy of this register's name, rather than constructing the
 222    name from this #define.  */
 223 #define GP_BASE_REGNUM                  13
 224
 225 #define ELIMINABLE_REGS                                 \
 226 {{ ARG_POINTER_REGNUM,   STACK_POINTER_REGNUM },        \
 227  { ARG_POINTER_REGNUM,   FRAME_POINTER_REGNUM },        \
 228  { FRAME_POINTER_REGNUM, STACK_POINTER_REGNUM }}
 229
 230 #define INITIAL_ELIMINATION_OFFSET(FROM, TO, OFFSET)    \
 231   (OFFSET) = rx_initial_elimination_offset ((FROM), (TO))
 232
 233
 234 #define FUNCTION_ARG_REGNO_P(N)         (((N) >= 1) && ((N) <= 4))
 235 #define FUNCTION_VALUE_REGNO_P(N)       ((N) == FUNC_RETURN_REGNUM)
 236 #define DEFAULT_PCC_STRUCT_RETURN       0
 237
 238 #define FIXED_REGISTERS                                 \
 239 {                                                       \
 240   1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1     \
 241 }
 242
 243 #define CALL_USED_REGISTERS                             \
 244 {                                                       \
 245   1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1     \
 246 }
 247
 248 #define CONDITIONAL_REGISTER_USAGE                      \
 249   rx_conditional_register_usage ()
 250
 251 #define LIBCALL_VALUE(MODE)                             \
 252   gen_rtx_REG (((GET_MODE_CLASS (MODE) != MODE_INT      \
 253                  || GET_MODE_SIZE (MODE) >= 4)          \
 254                 ? (MODE)                                \
 255                 : SImode),                              \
 256                FUNC_RETURN_REGNUM)
 257
 258 /* Order of allocation of registers.  */
 259
 260 #define REG_ALLOC_ORDER                                         \
 261 {  7,  10,  11,  12,  13,  14,  4,  3,  2,  1, 9, 8, 6, 5, 15   \
 262 }
 263
 264 #define REGNO_IN_RANGE(REGNO, MIN, MAX)         \
 265   (IN_RANGE ((REGNO), (MIN), (MAX))             \
 266    || (reg_renumber != NULL                     \
 267        && reg_renumber[(REGNO)] >= (MIN)        \
 268        && reg_renumber[(REGNO)] <= (MAX)))
 269
 270 #ifdef REG_OK_STRICT
 271 #define REGNO_OK_FOR_BASE_P(regno)      REGNO_IN_RANGE (regno, 0, 15)
 272 #else
 273 #define REGNO_OK_FOR_BASE_P(regno)      1
 274 #endif
 275
 276 #define REGNO_OK_FOR_INDEX_P(regno)     REGNO_OK_FOR_BASE_P (regno)
 277
 278 #define RTX_OK_FOR_BASE(X, STRICT)                              \
 279   ((STRICT) ?                                                   \
 280    (   (REG_P (X)                                               \
 281         && REGNO_IN_RANGE (REGNO (X), 0, 15))                   \
 282     || (GET_CODE (X) == SUBREG                                  \
 283         && REG_P (SUBREG_REG (X))                               \
 284         && REGNO_IN_RANGE (REGNO (SUBREG_REG (X)), 0, 15)))     \
 285    :                                                            \
 286     ( (REG_P (X)                                                \
 287        || (GET_CODE (X) == SUBREG                               \
 288            && REG_P (SUBREG_REG (X))))))
 289
 290 #define GO_IF_MODE_DEPENDENT_ADDRESS(ADDR, LABEL)       \
 291   do                                                    \
 292     {                                                   \
 293       if (rx_is_mode_dependent_addr (ADDR))             \
 294         goto LABEL;                                     \
 295     }                                                   \
 296   while (0)
 297 \f
 298
 299 #define RETURN_ADDR_RTX(COUNT, FRAMEADDR)                               \
 300   ((COUNT) == 0                                                         \
 301    ? gen_rtx_MEM (Pmode, gen_rtx_PLUS (Pmode, arg_pointer_rtx, GEN_INT (-4))) \
 302    : NULL_RTX)
 303
 304 #define INCOMING_RETURN_ADDR_RTX        gen_rtx_MEM (Pmode, stack_pointer_rtx)
 305
 306 #define ACCUMULATE_OUTGOING_ARGS        1
 307
 308 typedef unsigned int CUMULATIVE_ARGS;
 309
 310 #define INIT_CUMULATIVE_ARGS(CUM, FNTYPE, LIBNAME, INDIRECT, N_NAMED_ARGS) \
 311   (CUM) = 0
 312
 313 \f
 314 #define TRAMPOLINE_SIZE         (! TARGET_BIG_ENDIAN_DATA ? 14 : 20)
 315 #define TRAMPOLINE_ALIGNMENT    32
 316 \f
 317 #define NO_PROFILE_COUNTERS     1
 318 #define PROFILE_BEFORE_PROLOGUE 1
 319
 320 #define FUNCTION_PROFILER(FILE, LABELNO)        \
 321     fprintf (FILE, "\tbsr\t__mcount\n");
 322 \f
 323
 324 #define HARD_REGNO_NREGS(REGNO, MODE)   CLASS_MAX_NREGS (0, MODE)
 325
 326 #define HARD_REGNO_MODE_OK(REGNO, MODE)                         \
 327   REGNO_REG_CLASS (REGNO) == GR_REGS
 328
 329 #define MODES_TIEABLE_P(MODE1, MODE2)                           \
 330   (   (   GET_MODE_CLASS (MODE1) == MODE_FLOAT                  \
 331        || GET_MODE_CLASS (MODE1) == MODE_COMPLEX_FLOAT)         \
 332    == (   GET_MODE_CLASS (MODE2) == MODE_FLOAT                  \
 333        || GET_MODE_CLASS (MODE2) == MODE_COMPLEX_FLOAT))
 334 \f
 335
 336 #define REGISTER_NAMES                                          \
 337   {                                                             \
 338     "r0",  "r1",  "r2",   "r3",   "r4",   "r5",   "r6",   "r7", \
 339       "r8",  "r9",  "r10",  "r11",  "r12",  "r13",  "r14",  "r15", "cc" \
 340   }
 341
 342 #define ADDITIONAL_REGISTER_NAMES       \
 343 {                                       \
 344     { "sp",    STACK_POINTER_REGNUM }   \
 345   , { "fp",    FRAME_POINTER_REGNUM }   \
 346   , { "arg",   ARG_POINTER_REGNUM }     \
 347   , { "chain", STATIC_CHAIN_REGNUM }    \
 348 }
 349
 350 #define DATA_SECTION_ASM_OP                             \
 351   (TARGET_AS100_SYNTAX ? "\t.SECTION D,DATA"            \
 352    : "\t.section D,\"aw\",@progbits\n\t.p2align 2")
 353
 354 #define SDATA_SECTION_ASM_OP                            \
 355   (TARGET_AS100_SYNTAX ? "\t.SECTION D_2,DATA,ALIGN=2"  \
 356    : "\t.section D_2,\"aw\",@progbits\n\t.p2align 1")
 357
 358 #undef  READONLY_DATA_SECTION_ASM_OP
 359 #define READONLY_DATA_SECTION_ASM_OP                    \
 360   (TARGET_AS100_SYNTAX ? "\t.SECTION C,ROMDATA,ALIGN=4" \
 361    : "\t.section C,\"a\",@progbits\n\t.p2align 2")
 362
 363 #define BSS_SECTION_ASM_OP                              \
 364   (TARGET_AS100_SYNTAX ? "\t.SECTION B,DATA,ALIGN=4"    \
 365    : "\t.section B,\"w\",@nobits\n\t.p2align 2")
 366
 367 #define SBSS_SECTION_ASM_OP                             \
 368   (TARGET_AS100_SYNTAX ? "\t.SECTION B_2,DATA,ALIGN=2"  \
 369    : "\t.section B_2,\"w\",@nobits\n\t.p2align 1")
 370
 371 /* The following definitions are conditional depending upon whether the
 372    compiler is being built or crtstuff.c is being compiled by the built
 373    compiler.  */
 374 #if defined CRT_BEGIN || defined CRT_END
 375 # ifdef __RX_AS100_SYNTAX
 376 #  define TEXT_SECTION_ASM_OP         "\t.SECTION P,CODE"
 377 #  define CTORS_SECTION_ASM_OP        "\t.SECTION init_array,CODE"
 378 #  define DTORS_SECTION_ASM_OP        "\t.SECTION fini_array,CODE"
 379 #  define INIT_ARRAY_SECTION_ASM_OP   "\t.SECTION init_array,CODE"
 380 #  define FINI_ARRAY_SECTION_ASM_OP   "\t.SECTION fini_array,CODE"
 381 # else
 382 #  define TEXT_SECTION_ASM_OP         "\t.section P,\"ax\""
 383 #  define CTORS_SECTION_ASM_OP        \
 384   "\t.section\t.init_array,\"aw\",@init_array"
 385 #  define DTORS_SECTION_ASM_OP        \
 386   "\t.section\t.fini_array,\"aw\",@fini_array"
 387 #  define INIT_ARRAY_SECTION_ASM_OP   \
 388   "\t.section\t.init_array,\"aw\",@init_array"
 389 #  define FINI_ARRAY_SECTION_ASM_OP   \
 390   "\t.section\t.fini_array,\"aw\",@fini_array"
 391 # endif
 392 #else
 393 # define TEXT_SECTION_ASM_OP          \
 394   (TARGET_AS100_SYNTAX ? "\t.SECTION P,CODE" : "\t.section P,\"ax\"")
 395
 396 # define CTORS_SECTION_ASM_OP                         \
 397   (TARGET_AS100_SYNTAX ? "\t.SECTION init_array,CODE" \
 398    : "\t.section\t.init_array,\"aw\",@init_array")
 399
 400 # define DTORS_SECTION_ASM_OP                         \
 401   (TARGET_AS100_SYNTAX ? "\t.SECTION fini_array,CODE" \
 402    : "\t.section\t.fini_array,\"aw\",@fini_array")
 403
 404 # define INIT_ARRAY_SECTION_ASM_OP                    \
 405   (TARGET_AS100_SYNTAX ? "\t.SECTION init_array,CODE" \
 406    : "\t.section\t.init_array,\"aw\",@init_array")
 407
 408 # define FINI_ARRAY_SECTION_ASM_OP                    \
 409   (TARGET_AS100_SYNTAX ? "\t.SECTION fini_array,CODE" \
 410    : "\t.section\t.fini_array,\"aw\",@fini_array")
 411 #endif
 412
 413 #define GLOBAL_ASM_OP           \
 414   (TARGET_AS100_SYNTAX ? "\t.GLB\t" : "\t.global\t")
 415 #define ASM_COMMENT_START       " ;"
 416 #define ASM_APP_ON              ""
 417 #define ASM_APP_OFF             ""
 418 #define LOCAL_LABEL_PREFIX      "L"
 419 #undef  USER_LABEL_PREFIX
 420 #define USER_LABEL_PREFIX       "_"
 421
 422 #define ASM_OUTPUT_ALIGN(STREAM, LOG)           \
 423   do                                            \
 424     {                                           \
 425       if ((LOG) == 0)                           \
 426         break;                                  \
 427       if (TARGET_AS100_SYNTAX)                  \
 428         {                                       \
 429           if ((LOG) >= 2)                       \
 430             fprintf (STREAM, "\t.ALIGN 4\t; %d alignment actually requested\n", 1 << (LOG)); \
 431           else                                  \
 432             fprintf (STREAM, "\t.ALIGN 2\n");   \
 433         }                                       \
 434       else                                      \
 435         fprintf (STREAM, "\t.balign %d\n", 1 << (LOG)); \
 436     }                                           \
 437   while (0)
 438
 439 #define ASM_OUTPUT_ADDR_VEC_ELT(FILE, VALUE) \
 440   fprintf (FILE, TARGET_AS100_SYNTAX ? "\t.LWORD L%d\n" : "\t.long .L%d\n", \
 441            VALUE)
 442
 443 /* This is how to output an element of a case-vector that is relative.
 444    Note: The local label referenced by the "3b" below is emitted by
 445    the tablejump insn.  */
 446
 447 #define ASM_OUTPUT_ADDR_DIFF_ELT(FILE, BODY, VALUE, REL) \
 448   fprintf (FILE, TARGET_AS100_SYNTAX \
 449            ? "\t.LWORD L%d - ?-\n" : "\t.long .L%d - 1b\n", VALUE)
 450
 451 #define ASM_OUTPUT_SIZE_DIRECTIVE(STREAM, NAME, SIZE)                   \
 452   do                                                                    \
 453     {                                                                   \
 454       HOST_WIDE_INT size_ = (SIZE);                                     \
 455                                                                         \
 456       /* The as100 assembler does not have an equivalent of the SVR4    \
 457          .size pseudo-op.  */                                           \
 458       if (TARGET_AS100_SYNTAX)                                          \
 459         break;                                                          \
 460                                                                         \
 461       fputs (SIZE_ASM_OP, STREAM);                                      \
 462       assemble_name (STREAM, NAME);                                     \
 463       fprintf (STREAM, ", " HOST_WIDE_INT_PRINT_DEC "\n", size_);       \
 464     }                                                                   \
 465   while (0)
 466
 467 #define ASM_OUTPUT_MEASURED_SIZE(STREAM, NAME)                          \
 468   do                                                                    \
 469     {                                                                   \
 470       /* The as100 assembler does not have an equivalent of the SVR4    \
 471          .size pseudo-op.  */                                           \
 472       if (TARGET_AS100_SYNTAX)                                          \
 473         break;                                                          \
 474       fputs (SIZE_ASM_OP, STREAM);                                      \
 475       assemble_name (STREAM, NAME);                                     \
 476       fputs (", .-", STREAM);                                           \
 477       assemble_name (STREAM, NAME);                                     \
 478       putc ('\n', STREAM);                                              \
 479     }                                                                   \
 480   while (0)
 481
 482 #define ASM_OUTPUT_TYPE_DIRECTIVE(STREAM, NAME, TYPE)                   \
 483   do                                                                    \
 484     {                                                                   \
 485       /* The as100 assembler does not have an equivalent of the SVR4    \
 486          .size pseudo-op.  */                                           \
 487       if (TARGET_AS100_SYNTAX)                                          \
 488         break;                                                          \
 489       fputs (TYPE_ASM_OP, STREAM);                                      \
 490       assemble_name (STREAM, NAME);                                     \
 491       fputs (", ", STREAM);                                             \
 492       fprintf (STREAM, TYPE_OPERAND_FMT, TYPE);                         \
 493       putc ('\n', STREAM);                                              \
 494     }                                                                   \
 495   while (0)
 496
 497 #undef  ASM_GENERATE_INTERNAL_LABEL
 498 #define ASM_GENERATE_INTERNAL_LABEL(LABEL, PREFIX, NUM)         \
 499   do                                                            \
 500     {                                                           \
 501       sprintf (LABEL, TARGET_AS100_SYNTAX ? "*%s%u" : "*.%s%u", \
 502                PREFIX, (unsigned) (NUM));                       \
 503     }                                                           \
 504   while (0)
 505
 506 #undef  ASM_OUTPUT_EXTERNAL
 507 #define ASM_OUTPUT_EXTERNAL(FILE, DECL, NAME)                   \
 508   do                                                            \
 509     {                                                           \
 510       if (TARGET_AS100_SYNTAX)                                  \
 511         targetm.asm_out.globalize_label (FILE, NAME);           \
 512       default_elf_asm_output_external (FILE, DECL, NAME);       \
 513     }                                                           \
 514   while (0)
 515
 516 #undef  ASM_OUTPUT_ALIGNED_COMMON
 517 #define ASM_OUTPUT_ALIGNED_COMMON(FILE, NAME, SIZE, ALIGN)              \
 518   do                                                                    \
 519     {                                                                   \
 520       if (TARGET_AS100_SYNTAX)                                          \
 521         {                                                               \
 522           fprintf ((FILE), "\t.GLB\t");                                 \
 523           assemble_name ((FILE), (NAME));                               \
 524           fprintf ((FILE), "\n");                                       \
 525           assemble_name ((FILE), (NAME));                               \
 526           switch ((ALIGN) / BITS_PER_UNIT)                              \
 527             {                                                           \
 528             case 4:                                                     \
 529               fprintf ((FILE), ":\t.BLKL\t"HOST_WIDE_INT_PRINT_UNSIGNED"\n",\
 530                        (SIZE) / 4);                                     \
 531               break;                                                    \
 532             case 2:                                                     \
 533               fprintf ((FILE), ":\t.BLKW\t"HOST_WIDE_INT_PRINT_UNSIGNED"\n",\
 534                        (SIZE) / 2);                                     \
 535               break;                                                    \
 536             default:                                                    \
 537               fprintf ((FILE), ":\t.BLKB\t"HOST_WIDE_INT_PRINT_UNSIGNED"\n",\
 538                        (SIZE));                                         \
 539               break;                                                    \
 540             }                                                           \
 541         }                                                               \
 542       else                                                              \
 543         {                                                               \
 544           fprintf ((FILE), "%s", COMMON_ASM_OP);                        \
 545           assemble_name ((FILE), (NAME));                               \
 546           fprintf ((FILE), ","HOST_WIDE_INT_PRINT_UNSIGNED",%u\n",      \
 547                    (SIZE), (ALIGN) / BITS_PER_UNIT);                    \
 548         }                                                               \
 549     }                                                                   \
 550   while (0)
 551
 552 #undef  SKIP_ASM_OP
 553 #define SKIP_ASM_OP   (TARGET_AS100_SYNTAX ? "\t.BLKB\t" : "\t.zero\t")
 554
 555 #undef  ASM_OUTPUT_LIMITED_STRING
 556 #define ASM_OUTPUT_LIMITED_STRING(FILE, STR)            \
 557   do                                                    \
 558     {                                                   \
 559       const unsigned char *_limited_str =               \
 560         (const unsigned char *) (STR);                  \
 561       unsigned ch;                                      \
 562                                                         \
 563       fprintf ((FILE), TARGET_AS100_SYNTAX              \
 564                ? "\t.BYTE\t\"" : "\t.string\t\"");      \
 565                                                         \
 566       for (; (ch = *_limited_str); _limited_str++)      \
 567         {                                               \
 568           int escape;                                   \
 569                                                         \
 570           switch (escape = ESCAPES[ch])                 \
 571             {                                           \
 572             case 0:                                     \
 573               putc (ch, (FILE));                        \
 574               break;                                    \
 575             case 1:                                     \
 576               fprintf ((FILE), "\\%03o", ch);           \
 577               break;                                    \
 578             default:                                    \
 579               putc ('\\', (FILE));                      \
 580               putc (escape, (FILE));                    \
 581               break;                                    \
 582             }                                           \
 583         }                                               \
 584                                                         \
 585       fprintf ((FILE), TARGET_AS100_SYNTAX ? "\"\n\t.BYTE\t0\n" : "\"\n");\
 586     }                                                   \
 587   while (0)
 588
 589 #undef  IDENT_ASM_OP
 590 #define IDENT_ASM_OP  (TARGET_AS100_SYNTAX \
 591                        ? "\t.END\t; Built by: ": "\t.ident\t")
 592
 593 /* For PIC put jump tables into the text section so that the offsets that
 594    they contain are always computed between two same-section symbols.  */
 595 #define JUMP_TABLES_IN_TEXT_SECTION     (flag_pic)
 596 \f
 597 extern int rx_float_compare_mode;
 598 \f
 599 /* This is a version of REG_P that also returns TRUE for SUBREGs.  */
 600 #define RX_REG_P(rtl) (REG_P (rtl) || GET_CODE (rtl) == SUBREG)
 601
 602 /* Like REG_P except that this macro is true for SET expressions.  */
 603 #define SET_P(rtl)    (GET_CODE (rtl) == SET)
 604 \f
 605 /* The AS100 assembler does not support .leb128 and .uleb128, but
 606    the compiler-build-time configure tests will have enabled their
 607    use because GAS supports them.  So default to generating STABS
 608    debug information instead of DWARF2 when generating AS100
 609    compatible output.  */
 610 #undef  PREFERRED_DEBUGGING_TYPE
 611 #define PREFERRED_DEBUGGING_TYPE (TARGET_AS100_SYNTAX \
 612                                   ? DBX_DEBUG : DWARF2_DEBUG)
 613
 614 #define INCOMING_FRAME_SP_OFFSET                4
 615 #define ARG_POINTER_CFA_OFFSET(FNDECL)          4
 616 #define FRAME_POINTER_CFA_OFFSET(FNDECL)        4
 617 \f
 618 #define TARGET_USE_FPU          (! TARGET_NO_USE_FPU)
 619
 620 /* This macro is used to decide when RX FPU instructions can be used.  */
 621 #define ALLOW_RX_FPU_INSNS      (TARGET_USE_FPU)
 622
 623 #define BRANCH_COST(SPEED,PREDICT)       1
 624 #define REGISTER_MOVE_COST(MODE,FROM,TO) 2
 625
 626 #define SELECT_CC_MODE(OP,X,Y)                                          \
 627   (GET_MODE_CLASS (GET_MODE (X)) == MODE_FLOAT ? CC_ZSmode :            \
 628     (GET_CODE (X) == PLUS || GET_CODE (X) == MINUS ? CC_ZSCmode :       \
 629     (GET_CODE (X) == ABS ? CC_ZSOmode :                                 \
 630     (GET_CODE (X) == AND || GET_CODE (X) == NOT || GET_CODE (X) == IOR  \
 631      || GET_CODE (X) == XOR || GET_CODE (X) == ROTATE                   \
 632      || GET_CODE (X) == ROTATERT || GET_CODE (X) == ASHIFTRT            \
 633      || GET_CODE (X) == LSHIFTRT || GET_CODE (X) == ASHIFT ? CC_ZSmode : \
 634      CCmode))))