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         builtin_assert ("machine=RX610");       \
  29      else                                       \
  30         builtin_assert ("machine=RX600");       \
  31                                                 \
  32       if (TARGET_BIG_ENDIAN_DATA)               \
  33         builtin_define ("__RX_BIG_ENDIAN__");   \
  34       else                                      \
  35         builtin_define ("__RX_LITTLE_ENDIAN__");\
  36                                                 \
  37       if (TARGET_64BIT_DOUBLES)                 \
  38         builtin_define ("__RX_64BIT_DOUBLES__");\
  39       else                                      \
  40         builtin_define ("__RX_32BIT_DOUBLES__");\
  41                                                 \
  42       if (ALLOW_RX_FPU_INSNS)                   \
  43         builtin_define ("__RX_FPU_INSNS__");    \
  44                                                 \
  45       if (TARGET_AS100_SYNTAX)                  \
  46         builtin_define ("__RX_AS100_SYNTAX__"); \
  47       else                                      \
  48         builtin_define ("__RX_GAS_SYNTAX__");   \
  49     }                                           \
  50   while (0)
  51
  52 enum rx_cpu_types
  53 {
  54   RX600,
  55   RX610,
  56   RX200
  57 };
  58
  59 extern enum rx_cpu_types  rx_cpu_type;
  60
  61 #undef  CC1_SPEC
  62 #define CC1_SPEC "\
  63   %{mas100-syntax:%{gdwarf*:%e-mas100-syntax is incompatible with -gdwarf}} \
  64   %{mcpu=rx200:%{fpu:%erx200 cpu does not have FPU hardware}}"
  65
  66 #undef  STARTFILE_SPEC
  67 #define STARTFILE_SPEC "%{pg:gcrt0.o%s}%{!pg:crt0.o%s} crtbegin.o%s"
  68
  69 #undef  ENDFILE_SPEC
  70 #define ENDFILE_SPEC "crtend.o%s crtn.o%s"
  71
  72 #undef  ASM_SPEC
  73 #define ASM_SPEC "\
  74 %{mbig-endian-data:-mbig-endian-data} \
  75 %{m64bit-doubles:-m64bit-doubles} \
  76 %{!m64bit-doubles:-m32bit-doubles} \
  77 %{msmall-data-limit*:-msmall-data-limit} \
  78 %{mrelax:-relax} \
  79 "
  80
  81 #undef  LIB_SPEC
  82 #define LIB_SPEC "                                      \
  83 --start-group                                           \
  84 -lc                                                     \
  85 %{msim*:-lsim}%{!msim*:-lnosys}                         \
  86 %{fprofile-arcs|fprofile-generate|coverage:-lgcov}      \
  87 --end-group                                             \
  88 %{!T*: %{msim*:%Trx-sim.ld}%{!msim*:%Trx.ld}}           \
  89 "
  90
  91 #undef  LINK_SPEC
  92 #define LINK_SPEC "%{mbig-endian-data:--oformat elf32-rx-be} %{mrelax:-relax}"
  93 \f
  94
  95 #define BITS_BIG_ENDIAN                 0
  96 #define BYTES_BIG_ENDIAN                TARGET_BIG_ENDIAN_DATA
  97 #define WORDS_BIG_ENDIAN                TARGET_BIG_ENDIAN_DATA
  98
  99 #ifdef __RX_BIG_ENDIAN__
 100 #define LIBGCC2_WORDS_BIG_ENDIAN        1
 101 #else
 102 #define LIBGCC2_WORDS_BIG_ENDIAN        0
 103 #endif
 104
 105 #define UNITS_PER_WORD                  4
 106
 107 #define INT_TYPE_SIZE                   32
 108 #define LONG_TYPE_SIZE                  32
 109 #define LONG_LONG_TYPE_SIZE             64
 110
 111 #define FLOAT_TYPE_SIZE                 32
 112 #define DOUBLE_TYPE_SIZE                (TARGET_64BIT_DOUBLES ? 64 : 32)
 113 #define LONG_DOUBLE_TYPE_SIZE           DOUBLE_TYPE_SIZE
 114
 115 #ifdef __RX_32BIT_DOUBLES__
 116 #define LIBGCC2_HAS_DF_MODE             0
 117 #define LIBGCC2_LONG_DOUBLE_TYPE_SIZE   32
 118 #else
 119 #define LIBGCC2_HAS_DF_MODE             1
 120 #define LIBGCC2_LONG_DOUBLE_TYPE_SIZE   64
 121 #endif
 122
 123 #define DEFAULT_SIGNED_CHAR             0
 124
 125 #define STRICT_ALIGNMENT                1
 126 #define FUNCTION_BOUNDARY               8
 127 #define BIGGEST_ALIGNMENT               32
 128 #define STACK_BOUNDARY                  32
 129 #define PARM_BOUNDARY                   8
 130
 131 #define FUNCTION_ARG_BOUNDARY(MODE, TYPE) 32
 132
 133 #define STACK_GROWS_DOWNWARD            1
 134 #define FRAME_GROWS_DOWNWARD            0
 135 #define FIRST_PARM_OFFSET(FNDECL)       0
 136
 137 #define MAX_REGS_PER_ADDRESS            2
 138
 139 #define Pmode                           SImode
 140 #define POINTER_SIZE                    32
 141 #undef  SIZE_TYPE
 142 #define SIZE_TYPE                       "long unsigned int"
 143 #undef  PTRDIFF_TYPE
 144 #define PTRDIFF_TYPE                    "long int"
 145 #define POINTERS_EXTEND_UNSIGNED        1
 146 #define FUNCTION_MODE                   QImode
 147 #define CASE_VECTOR_MODE                Pmode
 148 #define WORD_REGISTER_OPERATIONS        1
 149 #define HAS_LONG_COND_BRANCH            0
 150 #define HAS_LONG_UNCOND_BRANCH          0
 151
 152 #define MOVE_MAX                        4
 153 #define STARTING_FRAME_OFFSET           0
 154
 155 #define TRULY_NOOP_TRUNCATION(OUTPREC, INPREC)   1
 156
 157 #define LEGITIMATE_CONSTANT_P(X)        rx_is_legitimate_constant (X)
 158
 159 #define HANDLE_PRAGMA_PACK_PUSH_POP     1
 160
 161 #define HAVE_PRE_DECCREMENT             1
 162 #define HAVE_POST_INCREMENT             1
 163
 164 #define MOVE_RATIO(SPEED)               ((SPEED) ? 4 : 2)
 165 #define SLOW_BYTE_ACCESS                1
 166
 167 #define STORE_FLAG_VALUE                1
 168 #define LOAD_EXTEND_OP(MODE)            SIGN_EXTEND
 169 #define SHORT_IMMEDIATES_SIGN_EXTEND    1
 170 \f
 171 enum reg_class
 172 {
 173   NO_REGS,                      /* No registers in set.  */
 174   GR_REGS,                      /* Integer registers.  */
 175   ALL_REGS,                     /* All registers.  */
 176   LIM_REG_CLASSES               /* Max value + 1.  */
 177 };
 178
 179 #define REG_CLASS_NAMES                                 \
 180 {                                                       \
 181   "NO_REGS",                                            \
 182   "GR_REGS",                                            \
 183   "ALL_REGS"                                            \
 184 }
 185
 186 #define REG_CLASS_CONTENTS                              \
 187 {                                                       \
 188   { 0x00000000 },       /* No registers,  */            \
 189   { 0x0000ffff },       /* Integer registers.  */       \
 190   { 0x0000ffff }        /* All registers.  */           \
 191 }
 192
 193 #define IRA_COVER_CLASSES                               \
 194   {                                                     \
 195     GR_REGS, LIM_REG_CLASSES                            \
 196   }
 197
 198 #define SMALL_REGISTER_CLASSES          0
 199 #define N_REG_CLASSES                   (int) LIM_REG_CLASSES
 200 #define CLASS_MAX_NREGS(CLASS, MODE)    ((GET_MODE_SIZE (MODE) \
 201                                           + UNITS_PER_WORD - 1) \
 202                                          / UNITS_PER_WORD)
 203
 204 #define GENERAL_REGS                    GR_REGS
 205 #define BASE_REG_CLASS                  GR_REGS
 206 #define INDEX_REG_CLASS                 GR_REGS
 207
 208 #define FIRST_PSEUDO_REGISTER           17
 209
 210 #define REGNO_REG_CLASS(REGNO)          ((REGNO) < FIRST_PSEUDO_REGISTER \
 211                                          ? GR_REGS : NO_REGS)
 212
 213 #define STACK_POINTER_REGNUM            0
 214 #define FUNC_RETURN_REGNUM              1
 215 #define FRAME_POINTER_REGNUM            6
 216 #define ARG_POINTER_REGNUM              7
 217 #define STATIC_CHAIN_REGNUM             8
 218 #define TRAMPOLINE_TEMP_REGNUM          9
 219 #define STRUCT_VAL_REGNUM               15
 220 #define CC_REGNUM                       16
 221
 222 /* This is the register which is used to hold the address of the start
 223    of the small data area, if that feature is being used.  Note - this
 224    register must not be call_used because otherwise library functions
 225    that are compiled without small data support might clobber it.
 226
 227    FIXME: The function gcc/config/rx/rx.c:rx_gen_move_template() has a
 228    built in copy of this register's name, rather than constructing the
 229    name from this #define.  */
 230 #define GP_BASE_REGNUM                  13
 231
 232 #define ELIMINABLE_REGS                                 \
 233 {{ ARG_POINTER_REGNUM,   STACK_POINTER_REGNUM },        \
 234  { ARG_POINTER_REGNUM,   FRAME_POINTER_REGNUM },        \
 235  { FRAME_POINTER_REGNUM, STACK_POINTER_REGNUM }}
 236
 237 #define INITIAL_ELIMINATION_OFFSET(FROM, TO, OFFSET)    \
 238   (OFFSET) = rx_initial_elimination_offset ((FROM), (TO))
 239
 240
 241 #define FUNCTION_ARG_REGNO_P(N)         (((N) >= 1) && ((N) <= 4))
 242 #define FUNCTION_VALUE_REGNO_P(N)       ((N) == FUNC_RETURN_REGNUM)
 243 #define DEFAULT_PCC_STRUCT_RETURN       0
 244
 245 #define FIXED_REGISTERS                                 \
 246 {                                                       \
 247   1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1     \
 248 }
 249
 250 #define CALL_USED_REGISTERS                             \
 251 {                                                       \
 252   1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1     \
 253 }
 254
 255 #define CONDITIONAL_REGISTER_USAGE                      \
 256   rx_conditional_register_usage ()
 257
 258 #define LIBCALL_VALUE(MODE)                             \
 259   gen_rtx_REG (((GET_MODE_CLASS (MODE) != MODE_INT      \
 260                  || GET_MODE_SIZE (MODE) >= 4)          \
 261                 ? (MODE)                                \
 262                 : SImode),                              \
 263                FUNC_RETURN_REGNUM)
 264
 265 /* Order of allocation of registers.  */
 266
 267 #define REG_ALLOC_ORDER                                         \
 268 {  7,  10,  11,  12,  13,  14,  4,  3,  2,  1, 9, 8, 6, 5, 15   \
 269 }
 270
 271 #define REGNO_IN_RANGE(REGNO, MIN, MAX)         \
 272   (IN_RANGE ((REGNO), (MIN), (MAX))             \
 273    || (reg_renumber != NULL                     \
 274        && reg_renumber[(REGNO)] >= (MIN)        \
 275        && reg_renumber[(REGNO)] <= (MAX)))
 276
 277 #ifdef REG_OK_STRICT
 278 #define REGNO_OK_FOR_BASE_P(regno)      REGNO_IN_RANGE (regno, 0, 15)
 279 #else
 280 #define REGNO_OK_FOR_BASE_P(regno)      1
 281 #endif
 282
 283 #define REGNO_OK_FOR_INDEX_P(regno)     REGNO_OK_FOR_BASE_P (regno)
 284
 285 #define RTX_OK_FOR_BASE(X, STRICT)                              \
 286   ((STRICT) ?                                                   \
 287    (   (REG_P (X)                                               \
 288         && REGNO_IN_RANGE (REGNO (X), 0, 15))                   \
 289     || (GET_CODE (X) == SUBREG                                  \
 290         && REG_P (SUBREG_REG (X))                               \
 291         && REGNO_IN_RANGE (REGNO (SUBREG_REG (X)), 0, 15)))     \
 292    :                                                            \
 293     ( (REG_P (X)                                                \
 294        || (GET_CODE (X) == SUBREG                               \
 295            && REG_P (SUBREG_REG (X))))))
 296
 297 #define GO_IF_MODE_DEPENDENT_ADDRESS(ADDR, LABEL)       \
 298   do                                                    \
 299     {                                                   \
 300       if (rx_is_mode_dependent_addr (ADDR))             \
 301         goto LABEL;                                     \
 302     }                                                   \
 303   while (0)
 304 \f
 305
 306 #define RETURN_ADDR_RTX(COUNT, FRAMEADDR)                               \
 307   ((COUNT) == 0                                                         \
 308    ? gen_rtx_MEM (Pmode, gen_rtx_PLUS (Pmode, arg_pointer_rtx, GEN_INT (-4))) \
 309    : NULL_RTX)
 310
 311 #define INCOMING_RETURN_ADDR_RTX        gen_rtx_MEM (Pmode, stack_pointer_rtx)
 312
 313 #define ACCUMULATE_OUTGOING_ARGS        1
 314
 315 typedef unsigned int CUMULATIVE_ARGS;
 316
 317 #define INIT_CUMULATIVE_ARGS(CUM, FNTYPE, LIBNAME, INDIRECT, N_NAMED_ARGS) \
 318   (CUM) = 0
 319
 320 \f
 321 #define TRAMPOLINE_SIZE         (! TARGET_BIG_ENDIAN_DATA ? 14 : 20)
 322 #define TRAMPOLINE_ALIGNMENT    32
 323 \f
 324 #define NO_PROFILE_COUNTERS     1
 325 #define PROFILE_BEFORE_PROLOGUE 1
 326
 327 #define FUNCTION_PROFILER(FILE, LABELNO)        \
 328     fprintf (FILE, "\tbsr\t__mcount\n");
 329 \f
 330
 331 #define HARD_REGNO_NREGS(REGNO, MODE)   CLASS_MAX_NREGS (0, MODE)
 332
 333 #define HARD_REGNO_MODE_OK(REGNO, MODE)                         \
 334   REGNO_REG_CLASS (REGNO) == GR_REGS
 335
 336 #define MODES_TIEABLE_P(MODE1, MODE2)                           \
 337   (   (   GET_MODE_CLASS (MODE1) == MODE_FLOAT                  \
 338        || GET_MODE_CLASS (MODE1) == MODE_COMPLEX_FLOAT)         \
 339    == (   GET_MODE_CLASS (MODE2) == MODE_FLOAT                  \
 340        || GET_MODE_CLASS (MODE2) == MODE_COMPLEX_FLOAT))
 341 \f
 342
 343 #define REGISTER_NAMES                                          \
 344   {                                                             \
 345     "r0",  "r1",  "r2",   "r3",   "r4",   "r5",   "r6",   "r7", \
 346       "r8",  "r9",  "r10",  "r11",  "r12",  "r13",  "r14",  "r15", "cc" \
 347   };
 348
 349 #define ADDITIONAL_REGISTER_NAMES       \
 350 {                                       \
 351     { "sp",    STACK_POINTER_REGNUM }   \
 352   , { "fp",    FRAME_POINTER_REGNUM }   \
 353   , { "arg",   ARG_POINTER_REGNUM }     \
 354   , { "chain", STATIC_CHAIN_REGNUM }    \
 355 }
 356
 357 #define DATA_SECTION_ASM_OP                             \
 358   (TARGET_AS100_SYNTAX ? "\t.SECTION D,DATA"            \
 359    : "\t.section D,\"aw\",@progbits\n\t.p2align 2")
 360
 361 #define SDATA_SECTION_ASM_OP                            \
 362   (TARGET_AS100_SYNTAX ? "\t.SECTION D_2,DATA,ALIGN=2"  \
 363    : "\t.section D_2,\"aw\",@progbits\n\t.p2align 1")
 364
 365 #undef  READONLY_DATA_SECTION_ASM_OP
 366 #define READONLY_DATA_SECTION_ASM_OP                    \
 367   (TARGET_AS100_SYNTAX ? "\t.SECTION C,ROMDATA,ALIGN=4" \
 368    : "\t.section C,\"a\",@progbits\n\t.p2align 2")
 369
 370 #define BSS_SECTION_ASM_OP                              \
 371   (TARGET_AS100_SYNTAX ? "\t.SECTION B,DATA,ALIGN=4"    \
 372    : "\t.section B,\"w\",@nobits\n\t.p2align 2")
 373
 374 #define SBSS_SECTION_ASM_OP                             \
 375   (TARGET_AS100_SYNTAX ? "\t.SECTION B_2,DATA,ALIGN=2"  \
 376    : "\t.section B_2,\"w\",@nobits\n\t.p2align 1")
 377
 378 /* The following definitions are conditional depending upon whether the
 379    compiler is being built or crtstuff.c is being compiled by the built
 380    compiler.  */
 381 #if defined CRT_BEGIN || defined CRT_END
 382 # ifdef __RX_AS100_SYNTAX
 383 #  define TEXT_SECTION_ASM_OP         "\t.SECTION P,CODE"
 384 #  define CTORS_SECTION_ASM_OP        "\t.SECTION init_array,CODE"
 385 #  define DTORS_SECTION_ASM_OP        "\t.SECTION fini_array,CODE"
 386 #  define INIT_ARRAY_SECTION_ASM_OP   "\t.SECTION init_array,CODE"
 387 #  define FINI_ARRAY_SECTION_ASM_OP   "\t.SECTION fini_array,CODE"
 388 # else
 389 #  define TEXT_SECTION_ASM_OP         "\t.section P,\"ax\""
 390 #  define CTORS_SECTION_ASM_OP        \
 391   "\t.section\t.init_array,\"aw\",@init_array"
 392 #  define DTORS_SECTION_ASM_OP        \
 393   "\t.section\t.fini_array,\"aw\",@fini_array"
 394 #  define INIT_ARRAY_SECTION_ASM_OP   \
 395   "\t.section\t.init_array,\"aw\",@init_array"
 396 #  define FINI_ARRAY_SECTION_ASM_OP   \
 397   "\t.section\t.fini_array,\"aw\",@fini_array"
 398 # endif
 399 #else
 400 # define TEXT_SECTION_ASM_OP          \
 401   (TARGET_AS100_SYNTAX ? "\t.SECTION P,CODE" : "\t.section P,\"ax\"")
 402
 403 # define CTORS_SECTION_ASM_OP                         \
 404   (TARGET_AS100_SYNTAX ? "\t.SECTION init_array,CODE" \
 405    : "\t.section\t.init_array,\"aw\",@init_array")
 406
 407 # define DTORS_SECTION_ASM_OP                         \
 408   (TARGET_AS100_SYNTAX ? "\t.SECTION fini_array,CODE" \
 409    : "\t.section\t.fini_array,\"aw\",@fini_array")
 410
 411 # define INIT_ARRAY_SECTION_ASM_OP                    \
 412   (TARGET_AS100_SYNTAX ? "\t.SECTION init_array,CODE" \
 413    : "\t.section\t.init_array,\"aw\",@init_array")
 414
 415 # define FINI_ARRAY_SECTION_ASM_OP                    \
 416   (TARGET_AS100_SYNTAX ? "\t.SECTION fini_array,CODE" \
 417    : "\t.section\t.fini_array,\"aw\",@fini_array")
 418 #endif
 419
 420 #define GLOBAL_ASM_OP           \
 421   (TARGET_AS100_SYNTAX ? "\t.GLB\t" : "\t.global\t")
 422 #define ASM_COMMENT_START       " ;"
 423 #define ASM_APP_ON              ""
 424 #define ASM_APP_OFF             ""
 425 #define LOCAL_LABEL_PREFIX      "L"
 426 #undef  USER_LABEL_PREFIX
 427 #define USER_LABEL_PREFIX       "_"
 428
 429 #define ASM_OUTPUT_ALIGN(STREAM, LOG)           \
 430   do                                            \
 431     {                                           \
 432       if ((LOG) == 0)                           \
 433         break;                                  \
 434       if (TARGET_AS100_SYNTAX)                  \
 435         {                                       \
 436           if ((LOG) >= 2)                       \
 437             fprintf (STREAM, "\t.ALIGN 4\t; %d alignment actually requested\n", 1 << (LOG)); \
 438           else                                  \
 439             fprintf (STREAM, "\t.ALIGN 2\n");   \
 440         }                                       \
 441       else                                      \
 442         fprintf (STREAM, "\t.balign %d\n", 1 << (LOG)); \
 443     }                                           \
 444   while (0)
 445
 446 #define ASM_OUTPUT_ADDR_VEC_ELT(FILE, VALUE) \
 447   fprintf (FILE, TARGET_AS100_SYNTAX ? "\t.LWORD L%d\n" : "\t.long .L%d\n", \
 448            VALUE)
 449
 450 /* This is how to output an element of a case-vector that is relative.
 451    Note: The local label referenced by the "3b" below is emitted by
 452    the tablejump insn.  */
 453
 454 #define ASM_OUTPUT_ADDR_DIFF_ELT(FILE, BODY, VALUE, REL) \
 455   fprintf (FILE, TARGET_AS100_SYNTAX \
 456            ? "\t.LWORD L%d - ?-\n" : "\t.long .L%d - 1b\n", VALUE)
 457
 458 #define ASM_OUTPUT_SIZE_DIRECTIVE(STREAM, NAME, SIZE)                   \
 459   do                                                                    \
 460     {                                                                   \
 461       HOST_WIDE_INT size_ = (SIZE);                                     \
 462                                                                         \
 463       /* The as100 assembler does not have an equivalent of the SVR4    \
 464          .size pseudo-op.  */                                           \
 465       if (TARGET_AS100_SYNTAX)                                          \
 466         break;                                                          \
 467                                                                         \
 468       fputs (SIZE_ASM_OP, STREAM);                                      \
 469       assemble_name (STREAM, NAME);                                     \
 470       fprintf (STREAM, ", " HOST_WIDE_INT_PRINT_DEC "\n", size_);       \
 471     }                                                                   \
 472   while (0)
 473
 474 #define ASM_OUTPUT_MEASURED_SIZE(STREAM, NAME)                          \
 475   do                                                                    \
 476     {                                                                   \
 477       /* The as100 assembler does not have an equivalent of the SVR4    \
 478          .size pseudo-op.  */                                           \
 479       if (TARGET_AS100_SYNTAX)                                          \
 480         break;                                                          \
 481       fputs (SIZE_ASM_OP, STREAM);                                      \
 482       assemble_name (STREAM, NAME);                                     \
 483       fputs (", .-", STREAM);                                           \
 484       assemble_name (STREAM, NAME);                                     \
 485       putc ('\n', STREAM);                                              \
 486     }                                                                   \
 487   while (0)
 488
 489 #define ASM_OUTPUT_TYPE_DIRECTIVE(STREAM, NAME, TYPE)                   \
 490   do                                                                    \
 491     {                                                                   \
 492       /* The as100 assembler does not have an equivalent of the SVR4    \
 493          .size pseudo-op.  */                                           \
 494       if (TARGET_AS100_SYNTAX)                                          \
 495         break;                                                          \
 496       fputs (TYPE_ASM_OP, STREAM);                                      \
 497       assemble_name (STREAM, NAME);                                     \
 498       fputs (", ", STREAM);                                             \
 499       fprintf (STREAM, TYPE_OPERAND_FMT, TYPE);                         \
 500       putc ('\n', STREAM);                                              \
 501     }                                                                   \
 502   while (0)
 503
 504 #undef  ASM_GENERATE_INTERNAL_LABEL
 505 #define ASM_GENERATE_INTERNAL_LABEL(LABEL, PREFIX, NUM)         \
 506   do                                                            \
 507     {                                                           \
 508       sprintf (LABEL, TARGET_AS100_SYNTAX ? "*%s%u" : "*.%s%u", \
 509                PREFIX, (unsigned) (NUM));                       \
 510     }                                                           \
 511   while (0)
 512
 513 #undef  ASM_OUTPUT_EXTERNAL
 514 #define ASM_OUTPUT_EXTERNAL(FILE, DECL, NAME)                   \
 515   do                                                            \
 516     {                                                           \
 517       if (TARGET_AS100_SYNTAX)                                  \
 518         targetm.asm_out.globalize_label (FILE, NAME);           \
 519       default_elf_asm_output_external (FILE, DECL, NAME);       \
 520     }                                                           \
 521   while (0)
 522
 523 #undef  ASM_OUTPUT_ALIGNED_COMMON
 524 #define ASM_OUTPUT_ALIGNED_COMMON(FILE, NAME, SIZE, ALIGN)              \
 525   do                                                                    \
 526     {                                                                   \
 527       if (TARGET_AS100_SYNTAX)                                          \
 528         {                                                               \
 529           fprintf ((FILE), "\t.GLB\t");                                 \
 530           assemble_name ((FILE), (NAME));                               \
 531           fprintf ((FILE), "\n");                                       \
 532           assemble_name ((FILE), (NAME));                               \
 533           switch ((ALIGN) / BITS_PER_UNIT)                              \
 534             {                                                           \
 535             case 4:                                                     \
 536               fprintf ((FILE), ":\t.BLKL\t"HOST_WIDE_INT_PRINT_UNSIGNED"\n",\
 537                        (SIZE) / 4);                                     \
 538               break;                                                    \
 539             case 2:                                                     \
 540               fprintf ((FILE), ":\t.BLKW\t"HOST_WIDE_INT_PRINT_UNSIGNED"\n",\
 541                        (SIZE) / 2);                                     \
 542               break;                                                    \
 543             default:                                                    \
 544               fprintf ((FILE), ":\t.BLKB\t"HOST_WIDE_INT_PRINT_UNSIGNED"\n",\
 545                        (SIZE));                                         \
 546               break;                                                    \
 547             }                                                           \
 548         }                                                               \
 549       else                                                              \
 550         {                                                               \
 551           fprintf ((FILE), "%s", COMMON_ASM_OP);                        \
 552           assemble_name ((FILE), (NAME));                               \
 553           fprintf ((FILE), ","HOST_WIDE_INT_PRINT_UNSIGNED",%u\n",      \
 554                    (SIZE), (ALIGN) / BITS_PER_UNIT);                    \
 555         }                                                               \
 556     }                                                                   \
 557   while (0)
 558
 559 #undef  SKIP_ASM_OP
 560 #define SKIP_ASM_OP   (TARGET_AS100_SYNTAX ? "\t.BLKB\t" : "\t.zero\t")
 561
 562 #undef  ASM_OUTPUT_LIMITED_STRING
 563 #define ASM_OUTPUT_LIMITED_STRING(FILE, STR)            \
 564   do                                                    \
 565     {                                                   \
 566       const unsigned char *_limited_str =               \
 567         (const unsigned char *) (STR);                  \
 568       unsigned ch;                                      \
 569                                                         \
 570       fprintf ((FILE), TARGET_AS100_SYNTAX              \
 571                ? "\t.BYTE\t\"" : "\t.string\t\"");      \
 572                                                         \
 573       for (; (ch = *_limited_str); _limited_str++)      \
 574         {                                               \
 575           int escape;                                   \
 576                                                         \
 577           switch (escape = ESCAPES[ch])                 \
 578             {                                           \
 579             case 0:                                     \
 580               putc (ch, (FILE));                        \
 581               break;                                    \
 582             case 1:                                     \
 583               fprintf ((FILE), "\\%03o", ch);           \
 584               break;                                    \
 585             default:                                    \
 586               putc ('\\', (FILE));                      \
 587               putc (escape, (FILE));                    \
 588               break;                                    \
 589             }                                           \
 590         }                                               \
 591                                                         \
 592       fprintf ((FILE), TARGET_AS100_SYNTAX ? "\"\n\t.BYTE\t0\n" : "\"\n");\
 593     }                                                   \
 594   while (0)
 595
 596 #undef  IDENT_ASM_OP
 597 #define IDENT_ASM_OP  (TARGET_AS100_SYNTAX \
 598                        ? "\t.END\t; Built by: ": "\t.ident\t")
 599
 600 /* For PIC put jump tables into the text section so that the offsets that
 601    they contain are always computed between two same-section symbols.  */
 602 #define JUMP_TABLES_IN_TEXT_SECTION     (flag_pic)
 603 \f
 604 extern int rx_float_compare_mode;
 605 \f
 606 /* This is a version of REG_P that also returns TRUE for SUBREGs.  */
 607 #define RX_REG_P(rtl) (REG_P (rtl) || GET_CODE (rtl) == SUBREG)
 608
 609 /* Like REG_P except that this macro is true for SET expressions.  */
 610 #define SET_P(rtl)    (GET_CODE (rtl) == SET)
 611 \f
 612 /* The AS100 assembler does not support .leb128 and .uleb128, but
 613    the compiler-build-time configure tests will have enabled their
 614    use because GAS supports them.  So default to generating STABS
 615    debug information instead of DWARF2 when generating AS100
 616    compatible output.  */
 617 #undef  PREFERRED_DEBUGGING_TYPE
 618 #define PREFERRED_DEBUGGING_TYPE (TARGET_AS100_SYNTAX \
 619                                   ? DBX_DEBUG : DWARF2_DEBUG)
 620
 621 #define INCOMING_FRAME_SP_OFFSET                4
 622 #define ARG_POINTER_CFA_OFFSET(FNDECL)          4
 623 #define FRAME_POINTER_CFA_OFFSET(FNDECL)        4
 624 \f
 625 /* Translate -nofpu into -mnofpu so that it gets passed from gcc to cc1.  */
 626 #define TARGET_OPTION_TRANSLATE_TABLE \
 627   {"-nofpu", "-mnofpu" }
 628
 629 #define TARGET_USE_FPU          (! TARGET_NO_USE_FPU)
 630
 631 /* This macro is used to decide when RX FPU instructions can be used.  */
 632 #define ALLOW_RX_FPU_INSNS      (TARGET_USE_FPU)
 633
 634 #define BRANCH_COST(SPEED,PREDICT)       1
 635 #define REGISTER_MOVE_COST(MODE,FROM,TO) 2
 636
 637 #define SELECT_CC_MODE(OP,X,Y)                                          \
 638   (GET_MODE_CLASS (GET_MODE (X)) == MODE_FLOAT ? CC_ZSmode :            \
 639     (GET_CODE (X) == PLUS || GET_CODE (X) == MINUS ? CC_ZSCmode :       \
 640     (GET_CODE (X) == ABS ? CC_ZSOmode :                                 \
 641     (GET_CODE (X) == AND || GET_CODE (X) == NOT || GET_CODE (X) == IOR  \
 642      || GET_CODE (X) == XOR || GET_CODE (X) == ROTATE                   \
 643      || GET_CODE (X) == ROTATERT || GET_CODE (X) == ASHIFTRT            \
 644      || GET_CODE (X) == LSHIFTRT || GET_CODE (X) == ASHIFT ? CC_ZSmode : \
 645      CCmode))))