gcc/config/mep/mep.h

   1 /* Definitions for Toshiba Media Processor
   2    Copyright (C) 2001, 2003, 2004, 2005, 2007, 2008, 2009, 2010
   3    Free Software Foundation, Inc.
   4    Contributed by Red Hat, Inc.
   5
   6 This file is part of GCC.
   7
   8 GCC is free software; you can redistribute it and/or modify it under
   9 the terms of the GNU General Public License as published by the Free
  10 Software Foundation; either version 3, or (at your option) any later
  11 version.
  12
  13 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
  14 WARRANTY; without even the implied warranty of MERCHANTABILITY or
  15 FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  16 for more details.
  17
  18 You should have received a copy of the GNU General Public License
  19 along with GCC; see the file COPYING3.  If not see
  20 <http://www.gnu.org/licenses/>.  */
  21 \f
  22
  23 #undef  CPP_SPEC
  24 #define CPP_SPEC "\
  25 -D__MEP__ -D__MeP__ \
  26 -D__section(_x)=__attribute__((section(_x))) \
  27 -D__align(_x)=__attribute__((aligned(_x))) \
  28 -D__io(_x)=__attribute__((io(_x))) \
  29 -D__cb(_x)=__attribute__((cb(_x))) \
  30 -D__based=__attribute__((based)) \
  31 -D__tiny=__attribute__((tiny)) \
  32 -D__near=__attribute__((near)) \
  33 -D__far=__attribute__((far)) \
  34 -D__vliw=__attribute__((vliw)) \
  35 -D__interrupt=__attribute__((interrupt)) \
  36 -D__disinterrupt=__attribute__((disinterrupt)) \
  37 %{!meb:%{!mel:-D__BIG_ENDIAN__}} \
  38 %{meb:-U__LITTLE_ENDIAN__ -D__BIG_ENDIAN__} \
  39 %{mel:-U__BIG_ENDIAN__ -D__LITTLE_ENDIAN__} \
  40 %{mconfig=*:-D__MEP_CONFIG_%*} \
  41 %{mivc2:-D__MEP_CONFIG_CP_DATA_BUS_WIDTH=64} \
  42 "
  43
  44 #undef  CC1_SPEC
  45 #define CC1_SPEC "%{!mlibrary:%(config_cc_spec)} \
  46 %{!.cc:%{O2:%{!funroll*:--param max-completely-peeled-insns=6 \
  47                         --param max-unrolled-insns=6 -funroll-loops}}}"
  48
  49 #undef  CC1PLUS_SPEC
  50 #define CC1PLUS_SPEC "%{!mlibrary:%(config_cc_spec)}"
  51
  52 #undef  ASM_SPEC
  53 #define ASM_SPEC "%{mconfig=*} %{meb:-EB} %{mel:-EL} \
  54 %{mno-satur} %{msatur} %{mno-clip} %{mclip} %{mno-minmax} %{mminmax} \
  55 %{mno-absdiff} %{mabsdiff} %{mno-leadz} %{mleadz} %{mno-bitops} %{mbitops} \
  56 %{mno-div} %{mdiv} %{mno-mult} %{mmult} %{mno-average} %{maverage} \
  57 %{mcop32} %{mno-debug} %{mdebug} %{mlibrary}"
  58
  59 /* The MeP config tool will edit this spec.  */
  60 #undef  STARTFILE_SPEC
  61 #define STARTFILE_SPEC "%{msdram:%{msim:simsdram-crt0.o%s}} \
  62 %{mno-sdram:%{msim:sim-crt0.o%s}} \
  63 %{msdram:%{!msim*:sdram-crt0.o%s}} \
  64 %{mno-sdram:%{!msim*:crt0.o%s}} \
  65 %(config_start_spec) \
  66 %{msimnovec:simnovec-crt0.o%s} \
  67 crtbegin.o%s"
  68
  69 #undef  LIB_SPEC
  70 #define LIB_SPEC "-( -lc %{msim*:-lsim}%{!msim*:-lnosys} -) %(config_link_spec)"
  71
  72 #undef  LINK_SPEC
  73 #define LINK_SPEC "%{meb:-EB} %{mel:-EL}"
  74
  75 #undef  ENDFILE_SPEC
  76 #define ENDFILE_SPEC "crtend.o%s %{msim*:sim-crtn.o%s}%{!msim*:crtn.o%s}"
  77
  78 /* The MeP config tool will edit this spec.  */
  79 #define CONFIG_CC_SPEC "\
  80 %{mconfig=default: -mbitops -mleadz -mabsdiff -maverage -mminmax -mclip -msatur -mvl64 -mvliw -mcop64 -D__MEP_CONFIG_CP_DATA_BUS_WIDTH=64 -mivc2}\
  81 "
  82 /* end-config-cc-spec */
  83
  84 /* The MeP config tool will edit this spec.  */
  85 #define CONFIG_LINK_SPEC "\
  86 %{mconfig=default: %{!T*:-Tdefault.ld}}\
  87 "
  88 /* end-config-link-spec */
  89
  90 /* The MeP config tool will edit this spec.  */
  91 #define CONFIG_START_SPEC "\
  92 %{!msdram:%{!mno-sdram:%{!msim*:crt0.o%s}}} \
  93 %{!msdram:%{!mno-sdram:%{msim:sim-crt0.o%s}}} \
  94 "
  95 /* end-config-start-spec */
  96
  97 #define EXTRA_SPECS \
  98   { "config_cc_spec",  CONFIG_CC_SPEC }, \
  99   { "config_link_spec",  CONFIG_LINK_SPEC }, \
 100   { "config_start_spec",  CONFIG_START_SPEC },
 101 \f
 102
 103 #define TARGET_CPU_CPP_BUILTINS()               \
 104   do                                            \
 105     {                                           \
 106       builtin_define_std ("mep");               \
 107       builtin_assert ("machine=mep");           \
 108     }                                           \
 109   while (0)
 110
 111 /* Controlled by MeP-Integrator.  */
 112 #define TARGET_H1               0
 113
 114 #define MEP_ALL_OPTS    (MASK_OPT_AVERAGE       \
 115                          | MASK_OPT_MULT        \
 116                          | MASK_OPT_DIV         \
 117                          | MASK_OPT_BITOPS      \
 118                          | MASK_OPT_LEADZ       \
 119                          | MASK_OPT_ABSDIFF     \
 120                          | MASK_OPT_MINMAX      \
 121                          | MASK_OPT_CLIP        \
 122                          | MASK_OPT_SATUR )
 123
 124 #define TARGET_DEFAULT          (MASK_IO_VOLATILE | MASK_OPT_REPEAT | MEP_ALL_OPTS | MASK_LITTLE_ENDIAN)
 125
 126 #define TARGET_IO_NO_VOLATILE   (! (target_flags & MASK_IO_VOLATILE))
 127 #define TARGET_OPT_NOREPEAT     (! (target_flags & MASK_OPT_REPEAT))
 128 #define TARGET_32BIT_CR_REGS    (! (target_flags & MASK_64BIT_CR_REGS))
 129 #define TARGET_BIG_ENDIAN       (! (target_flags & MASK_LITTLE_ENDIAN))
 130
 131 #define TARGET_COPRO_MULT       0
 132
 133 #define TARGET_VERSION fprintf (stderr, " (Toshiba Media Processor (MeP))");
 134
 135 /* The MeP config tool will replace this as appropriate.  */
 136 #define DEFAULT_ENDIAN_SPEC "%{!meb: -mel}"
 137
 138 /* The MeP config tool will replace this with an -mconfig= switch.  */
 139 #define LIBRARY_CONFIG_SPEC "-mconfig=default"
 140
 141 /* Don't add an endian option when building the libraries.  */
 142 #define DRIVER_SELF_SPECS \
 143   "%{!mlibrary:" DEFAULT_ENDIAN_SPEC "}", \
 144   "%{mlibrary: " LIBRARY_CONFIG_SPEC " %{!mel:-meb}}", \
 145   "%{mall-opts:-maverage -mmult -mdiv -mbitops -mleadz \
 146      -mabsdiff -mminmax -mclip -msatur -mdebug} %<mall-opts", \
 147   "%{mno-opts:-mno-average -mno-mult -mno-div -mno-bitops -mno-leadz \
 148      -mno-absdiff -mno-minmax -mno-clip -mno-satur -mno-debug} %<mno-opts", \
 149   "%{mfar:-ml -mtf -mc=far} %<mfar", \
 150   "%{mconfig=default:-mmult -mdiv -D__MEP_CONFIG_ISA=1}"
 151
 152 /* The MeP config tool will add COPROC_SELECTION_TABLE here.  */
 153 /* start-coproc-selection-table */
 154 #define COPROC_SELECTION_TABLE \
 155 {"default", ISA_EXT1}
 156 /* end-coproc-selection-table */
 157 \f
 158
 159 #define BITS_BIG_ENDIAN 0
 160 #define BYTES_BIG_ENDIAN (TARGET_LITTLE_ENDIAN ? 0 : 1)
 161 #define WORDS_BIG_ENDIAN (TARGET_LITTLE_ENDIAN ? 0 : 1)
 162
 163 #define UNITS_PER_WORD 4
 164
 165 #define PROMOTE_MODE(MODE, UNSIGNEDP, TYPE)     \
 166   do                                            \
 167     {                                           \
 168       if (GET_MODE_CLASS (MODE) == MODE_INT     \
 169           && GET_MODE_SIZE (MODE) < 4)          \
 170         (MODE) = SImode;                \
 171     }                                           \
 172   while (0)
 173
 174 #define PARM_BOUNDARY 32
 175 #define STACK_BOUNDARY 32
 176 #define PREFERRED_STACK_BOUNDARY 64
 177 #define FUNCTION_BOUNDARY 16
 178 #define BIGGEST_ALIGNMENT 64
 179
 180 #define DATA_ALIGNMENT(TYPE, ALIGN)             \
 181   (TREE_CODE (TYPE) == ARRAY_TYPE               \
 182    && TYPE_MODE (TREE_TYPE (TYPE)) == QImode    \
 183    && (ALIGN) < BITS_PER_WORD ? BITS_PER_WORD : (ALIGN))
 184
 185 #define CONSTANT_ALIGNMENT(EXP, ALIGN)  \
 186   (TREE_CODE (EXP) == STRING_CST        \
 187    && (ALIGN) < BITS_PER_WORD ? BITS_PER_WORD : (ALIGN))
 188
 189 #define STRICT_ALIGNMENT 1
 190
 191 #define PCC_BITFIELD_TYPE_MATTERS 1
 192
 193 #define DEFAULT_VTABLE_THUNKS 1
 194
 195 \f
 196 #define INT_TYPE_SIZE         32
 197 #define SHORT_TYPE_SIZE       16
 198 #define LONG_TYPE_SIZE        32
 199 #define LONG_LONG_TYPE_SIZE   64
 200 #define CHAR_TYPE_SIZE         8
 201 #define FLOAT_TYPE_SIZE       32
 202 #define DOUBLE_TYPE_SIZE      64
 203 #define LONG_DOUBLE_TYPE_SIZE 64
 204 #define DEFAULT_SIGNED_CHAR    1
 205 \f
 206 /* Register numbers:
 207         0..15   core registers
 208         16..47  control registers
 209         48..79  coprocessor registers
 210         80..111 coprocessor control registers
 211         112     virtual arg pointer register  */
 212
 213 #define FIRST_PSEUDO_REGISTER (LAST_SHADOW_REGISTER + 1)
 214
 215   /* R12 is optionally FP.  R13 is TP, R14 is GP, R15 is SP. */
 216   /* hi and lo can be used as general registers.  Others have
 217      immutable bits.  */
 218 /* A "1" here means the register is generally not available to gcc,
 219    and is assumed to remain unchanged or unused throughout.  */
 220 #define FIXED_REGISTERS {                               \
 221   /* core registers */                                  \
 222   0, 0, 0, 0,  0, 0, 0, 0,  0, 0, 0, 0,  0, 0, 0, 1,    \
 223   /* control registers */                               \
 224   1, 1, 1, 1,  1, 1, 1, 0,  0, 1, 1, 1,  1, 1, 1, 1,    \
 225   1, 1, 1, 1,  1, 1, 1, 1,  1, 1, 1, 1,  1, 1, 1, 1,    \
 226   /* coprocessor registers */                           \
 227   1, 1, 1, 1,  1, 1, 1, 1,  1, 1, 1, 1,  1, 1, 1, 1,    \
 228   1, 1, 1, 1,  1, 1, 1, 1,  1, 1, 1, 1,  1, 1, 1, 1,    \
 229   /* coprocessor control registers */                   \
 230   1, 1, 1, 1,  1, 1, 1, 1,  1, 1, 1, 1,  1, 1, 1, 1,    \
 231   1, 1, 1, 1,  1, 1, 1, 1,  1, 1, 1, 1,  1, 1, 1, 1,    \
 232   /* virtual arg pointer */                             \
 233   1, FIXED_SHADOW_REGISTERS                             \
 234   }
 235
 236 /* This is a call-clobbered reg not used for args or return value,
 237    that we use as a temp for saving control registers in the prolog
 238    and restoring them in the epilog. */
 239 #define REGSAVE_CONTROL_TEMP    11
 240
 241 /* A "1" here means a register may be changed by a function without
 242    needing to preserve its previous value.  */
 243 #define CALL_USED_REGISTERS {                           \
 244   /* core registers */                                  \
 245   1, 1, 1, 1,  1, 0, 0, 0,  0, 1, 1, 1,  1, 0, 0, 1,    \
 246   /* control registers */                               \
 247   1, 1, 1, 1,  1, 1, 1, 1,  1, 1, 1, 1,  1, 1, 1, 1,    \
 248   1, 1, 1, 1,  1, 1, 1, 1,  1, 1, 1, 1,  1, 1, 1, 1,    \
 249   /* coprocessor registers */                           \
 250   1, 1, 1, 1,  1, 1, 1, 1,  1, 1, 1, 1,  1, 1, 1, 1,    \
 251   1, 1, 1, 1,  1, 1, 1, 1,  1, 1, 1, 1,  1, 1, 1, 1,    \
 252   /* coprocessor control registers */                   \
 253   1, 1, 1, 1,  1, 1, 1, 1,  1, 1, 1, 1,  1, 1, 1, 1,    \
 254   1, 1, 1, 1,  1, 1, 1, 1,  1, 1, 1, 1,  1, 1, 1, 1,    \
 255   /* virtual arg pointer */                             \
 256   1, CALL_USED_SHADOW_REGISTERS                         \
 257   }
 258
 259 #define REG_ALLOC_ORDER {                                               \
 260   /* core registers */                                                  \
 261   3, 2, 1, 0, 9, 10, 11, 12, 4, 5, 6, 7, 8, 13, 14, 15,                 \
 262   /* control registers */                                               \
 263   16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31,       \
 264   32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47,       \
 265   /* coprocessor registers */                                           \
 266   /* Prefer to use the non-loadable registers when looking for a        \
 267      member of CR_REGS (as opposed to LOADABLE_CR_REGS).  */            \
 268   64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 48, 49, 50, 51, 52, 58,       \
 269   59, 60, 61, 62, 63, 53, 54, 55, 56, 57, 74, 75, 76, 77, 78, 79,       \
 270   /* coprocessor control registers */                                   \
 271   80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95,       \
 272   96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, \
 273   /* virtual arg pointer */                                             \
 274   112, SHADOW_REG_ALLOC_ORDER                                           \
 275   }
 276
 277 /* We must somehow disable register remapping for interrupt functions.  */
 278 extern char mep_leaf_registers[];
 279 #define LEAF_REGISTERS mep_leaf_registers
 280 #define LEAF_REG_REMAP(REG) (REG)
 281
 282 \f
 283 #define FIRST_GR_REGNO 0
 284 #define FIRST_CONTROL_REGNO (FIRST_GR_REGNO + 16)
 285 #define FIRST_CR_REGNO (FIRST_CONTROL_REGNO + 32)
 286 #define FIRST_CCR_REGNO (FIRST_CR_REGNO + 32)
 287
 288 #define GR_REGNO_P(REGNO) \
 289   ((unsigned) ((REGNO) - FIRST_GR_REGNO) < 16)
 290
 291 #define CONTROL_REGNO_P(REGNO) \
 292   ((unsigned) ((REGNO) - FIRST_CONTROL_REGNO) < 32)
 293
 294 #define LOADABLE_CR_REGNO_P(REGNO) \
 295   ((unsigned) ((REGNO) - FIRST_CR_REGNO) < 16)
 296
 297 #define CR_REGNO_P(REGNO) \
 298   ((unsigned) ((REGNO) - FIRST_CR_REGNO) < 32)
 299
 300 #define CCR_REGNO_P(REGNO) \
 301   ((unsigned) ((REGNO) - FIRST_CCR_REGNO) < 32)
 302
 303 #define ANY_CONTROL_REGNO_P(REGNO) \
 304   (CONTROL_REGNO_P (REGNO) || CCR_REGNO_P (REGNO))
 305
 306 #define HARD_REGNO_NREGS(REGNO, MODE)           \
 307   ((CR_REGNO_P (REGNO) && TARGET_64BIT_CR_REGS) \
 308    ? (GET_MODE_SIZE (MODE) + 8 - 1) / 8         \
 309    : (GET_MODE_SIZE (MODE) + 4 - 1) / 4)
 310
 311 #define HARD_REGNO_MODE_OK(REGNO, MODE) 1
 312
 313 #define MODES_TIEABLE_P(MODE1, MODE2) 1
 314
 315 #define CANNOT_CHANGE_MODE_CLASS(FROM, TO, CLASS) \
 316   mep_cannot_change_mode_class (FROM, TO, CLASS)
 317 \f
 318 enum reg_class
 319 {
 320   NO_REGS,
 321   SP_REGS,
 322   TP_REGS,
 323   GP_REGS,
 324   R0_REGS,
 325   RPC_REGS,
 326   HI_REGS,
 327   LO_REGS,
 328   HILO_REGS,
 329   TPREL_REGS,
 330   GENERAL_NOT_R0_REGS,
 331   GENERAL_REGS,
 332   CONTROL_REGS,
 333   CONTROL_OR_GENERAL_REGS,
 334   USER0_REGS,
 335   USER1_REGS,
 336   USER2_REGS,
 337   USER3_REGS,
 338   LOADABLE_CR_REGS,
 339   CR_REGS,
 340   CCR_REGS,
 341   ALL_REGS,
 342   LIM_REG_CLASSES
 343 };
 344
 345 #define N_REG_CLASSES ((int) LIM_REG_CLASSES)
 346
 347 #define REG_CLASS_NAMES { \
 348   "NO_REGS", \
 349   "SP_REGS", \
 350   "TP_REGS", \
 351   "GP_REGS", \
 352   "R0_REGS", \
 353   "RPC_REGS", \
 354   "HI_REGS", \
 355   "LO_REGS", \
 356   "HILO_REGS", \
 357   "TPREL_REGS", \
 358   "GENERAL_NOT_R0_REGS", \
 359   "GENERAL_REGS", \
 360   "CONTROL_REGS", \
 361   "CONTROL_OR_GENERAL_REGS", \
 362   "USER0_REGS", \
 363   "USER1_REGS", \
 364   "USER2_REGS", \
 365   "USER3_REGS", \
 366   "LOADABLE_CR_REGS", \
 367   "CR_REGS", \
 368   "CCR_REGS", \
 369   "ALL_REGS" }
 370
 371 #define REG_CLASS_CONTENTS { \
 372   { 0x00000000, 0x00000000, 0x00000000, 0x00000000 }, /* NO_REGS */ \
 373   { 0x00008000, 0x00000000, 0x00000000, 0x00000000 }, /* SP_REGS */ \
 374   { 0x00002000, 0x00000000, 0x00000000, 0x00000000 }, /* TP_REGS */ \
 375   { 0x00004000, 0x00000000, 0x00000000, 0x00000000 }, /* GP_REGS */ \
 376   { 0x00000001, 0x00000000, 0x00000000, 0x00000000 }, /* R0_REGS */ \
 377   { 0x00400000, 0x00000000, 0x00000000, 0x00000000 }, /* RPC_REGS */ \
 378   { 0x00800000, 0x00000000, 0x00000000, 0x00000000 }, /* HI_REGS */ \
 379   { 0x01000000, 0x00000000, 0x00000000, 0x00000000 }, /* LO_REGS */ \
 380   { 0x01800000, 0x00000000, 0x00000000, 0x00000000 }, /* HILO_REGS */ \
 381   { 0x000000ff, 0x00000000, 0x00000000, 0x00000000 }, /* TPREL_REGS */ \
 382   { 0x0000fffe, 0x00000000, 0x00000000, 0x00000000 }, /* GENERAL_NOT_R0_REGS */ \
 383   { 0x0000ffff, 0x00000000, 0x00000000, 0x00010000 }, /* GENERAL_REGS */ \
 384   { 0xffff0000, 0x0000ffff, 0x00000000, 0x00000000 }, /* CONTROL_REGS */ \
 385   { 0xffffffff, 0x0000ffff, 0x00000000, 0x00000000 }, /* CONTROL_OR_GENERAL_REGS */ \
 386   { 0x00000000, 0x00000000, 0x00000000, 0x00000000 }, /* USER0_REGS */ \
 387   { 0x00000000, 0x00000000, 0x00000000, 0x00000000 }, /* USER1_REGS */ \
 388   { 0x00000000, 0x00000000, 0x00000000, 0x00000000 }, /* USER2_REGS */ \
 389   { 0x00000000, 0x00000000, 0x00000000, 0x00000000 }, /* USER3_REGS */ \
 390   { 0x00000000, 0xffff0000, 0x00000000, 0x00000000 }, /* LOADABLE_CR_REGS */ \
 391   { 0x00000000, 0xffff0000, 0x0000ffff, 0x00000000 }, /* CR_REGS */ \
 392   { 0x00000000, 0x00000000, 0xffff0000, 0x0000ffff }, /* CCR_REGS */ \
 393   { 0xffffffff, 0xffffffff, 0xffffffff, 0x0001ffff }, /* ALL_REGS */ \
 394   }
 395
 396 #define REGNO_REG_CLASS(REGNO) (enum reg_class) mep_regno_reg_class (REGNO)
 397
 398 #define IRA_COVER_CLASSES { GENERAL_REGS, CONTROL_REGS, CR_REGS, CCR_REGS, LIM_REG_CLASSES }
 399
 400 #define BASE_REG_CLASS GENERAL_REGS
 401 #define INDEX_REG_CLASS GENERAL_REGS
 402
 403 #if 0
 404 #define REG_CLASS_FROM_CONSTRAINT(CHAR, STRING) \
 405         mep_reg_class_from_constraint (CHAR, STRING)
 406 #endif
 407
 408 #define REGNO_OK_FOR_BASE_P(NUM) (GR_REGNO_P (NUM) \
 409         || (NUM) == ARG_POINTER_REGNUM \
 410         || (NUM) >= FIRST_PSEUDO_REGISTER)
 411
 412 #define REGNO_OK_FOR_INDEX_P(NUM) REGNO_OK_FOR_BASE_P (NUM)
 413
 414 #define PREFERRED_RELOAD_CLASS(X, CLASS) mep_preferred_reload_class (X, CLASS)
 415
 416 #define SECONDARY_INPUT_RELOAD_CLASS(CLASS, MODE, X) \
 417         mep_secondary_input_reload_class (CLASS, MODE, X)
 418 #define SECONDARY_OUTPUT_RELOAD_CLASS(CLASS, MODE, X) \
 419         mep_secondary_output_reload_class (CLASS, MODE, X)
 420 #define SECONDARY_MEMORY_NEEDED(CLASS1, CLASS2, MODE) \
 421         mep_secondary_memory_needed (CLASS1, CLASS2, MODE)
 422
 423 #define CLASS_MAX_NREGS(CLASS, MODE) \
 424   ((GET_MODE_SIZE (MODE) + UNITS_PER_WORD - 1) / UNITS_PER_WORD)
 425
 426 #if 0
 427 #define CONST_OK_FOR_LETTER_P(VALUE, C) mep_const_ok_for_letter_p (VALUE, C)
 428
 429 #define CONST_DOUBLE_OK_FOR_LETTER_P(VALUE, C) 0
 430
 431 #define CONSTRAINT_LEN(C, STR) \
 432         ((C) == 'e' ? 2 : DEFAULT_CONSTRAINT_LEN (C, STR))
 433 #define EXTRA_CONSTRAINT(VALUE, C) mep_extra_constraint (VALUE, C)
 434 #endif
 435
 436 #define WANT_GCC_DECLARATIONS
 437 #include "mep-intrin.h"
 438 #undef WANT_GCC_DECLARATIONS
 439
 440 extern int mep_intrinsic_insn[];
 441 extern unsigned int mep_selected_isa;
 442
 443 /* True if intrinsic X is available.  X is a mep_* value declared
 444    in mep-intrin.h.  */
 445 #define MEP_INTRINSIC_AVAILABLE_P(X) (mep_intrinsic_insn[X] >= 0)
 446
 447 /* Used to define CGEN_ENABLE_INTRINSIC_P in mep-intrin.h.  */
 448 #define CGEN_CURRENT_ISAS mep_selected_isa
 449 #define CGEN_CURRENT_GROUP \
 450   (mep_vliw_function_p (cfun->decl) ? GROUP_VLIW : GROUP_NORMAL)
 451
 452 \f
 453
 454 #define STACK_GROWS_DOWNWARD       1
 455 #define FRAME_GROWS_DOWNWARD       1
 456 #define STARTING_FRAME_OFFSET      0
 457 #define FIRST_PARM_OFFSET(FUNDECL) 0
 458 #define INCOMING_FRAME_SP_OFFSET   0
 459
 460 #define RETURN_ADDR_RTX(COUNT, FRAMEADDR) mep_return_addr_rtx (COUNT)
 461 #define INCOMING_RETURN_ADDR_RTX          gen_rtx_REG (SImode, LP_REGNO)
 462 #define DWARF_FRAME_RETURN_COLUMN         LP_REGNO
 463
 464 #define STACK_POINTER_REGNUM          15
 465 #define FRAME_POINTER_REGNUM           8
 466 #define ARG_POINTER_REGNUM            112
 467 #define RETURN_ADDRESS_POINTER_REGNUM 17
 468 #define STATIC_CHAIN_REGNUM            0
 469
 470 \f
 471
 472 #define ELIMINABLE_REGS                                         \
 473 {                                                               \
 474   {ARG_POINTER_REGNUM,   STACK_POINTER_REGNUM},                 \
 475   {ARG_POINTER_REGNUM,   FRAME_POINTER_REGNUM},                 \
 476   {FRAME_POINTER_REGNUM, STACK_POINTER_REGNUM}                  \
 477 }
 478
 479 #define INITIAL_ELIMINATION_OFFSET(FROM, TO, OFFSET) \
 480         (OFFSET) = mep_elimination_offset (FROM, TO)
 481
 482 #define ACCUMULATE_OUTGOING_ARGS 1
 483
 484 \f
 485
 486 #define FUNCTION_ARG_CALLEE_COPIES(CUM, MODE, TYPE, NAMED) 1
 487
 488 typedef struct
 489 {
 490   int nregs;
 491   int vliw;
 492 } CUMULATIVE_ARGS;
 493
 494 #define INIT_CUMULATIVE_ARGS(CUM, FNTYPE, LIBNAME, FNDECL, N_NAMED_ARGS) \
 495         mep_init_cumulative_args (& (CUM), FNTYPE, LIBNAME, FNDECL)
 496
 497 #define FUNCTION_ARG_REGNO_P(REGNO) \
 498         (((REGNO) >= 1 && (REGNO) <= 4) \
 499          || ((REGNO) >= FIRST_CR_REGNO + 1 \
 500              && (REGNO) <= FIRST_CR_REGNO + 4 \
 501              && TARGET_COP))
 502
 503 #define RETURN_VALUE_REGNUM      0
 504
 505 #define FUNCTION_VALUE(VALTYPE, FUNC) mep_function_value (VALTYPE, FUNC)
 506 #define LIBCALL_VALUE(MODE) mep_libcall_value (MODE)
 507
 508 #define FUNCTION_VALUE_REGNO_P(REGNO)                           \
 509   ((REGNO) == RETURN_VALUE_REGNUM)
 510
 511 #define DEFAULT_PCC_STRUCT_RETURN 0
 512
 513 #define STRUCT_VALUE 0
 514
 515 #define FUNCTION_OK_FOR_SIBCALL(DECL) mep_function_ok_for_sibcall(DECL)
 516 \f
 517 /* Prologue and epilogues are all handled via RTL.  */
 518
 519 #define EXIT_IGNORE_STACK 1
 520
 521 #define EPILOGUE_USES(REGNO)  mep_epilogue_uses (REGNO)
 522
 523 /* Profiling is supported.  */
 524
 525 #define FUNCTION_PROFILER(FILE, LABELNO) mep_function_profiler (FILE);
 526 #undef TARGET_HAS_F_SETLKW
 527 #define NO_PROFILE_COUNTERS 1
 528 \f
 529 /* Trampolines are built at run-time.  The cache is invalidated at
 530    run-time also.  */
 531
 532 #define TRAMPOLINE_SIZE 20
 533 \f
 534
 535 #define MAX_REGS_PER_ADDRESS 1
 536
 537 #ifdef REG_OK_STRICT
 538 #define GO_IF_LEGITIMATE_ADDRESS(MODE, X, LABEL)                \
 539         if (mep_legitimate_address ((MODE), (X), 1)) goto LABEL
 540 #else
 541 #define GO_IF_LEGITIMATE_ADDRESS(MODE, X, LABEL)                \
 542         if (mep_legitimate_address ((MODE), (X), 0)) goto LABEL
 543 #endif
 544
 545 #ifdef REG_OK_STRICT
 546 #define REG_OK_FOR_BASE_P(X) GR_REGNO_P (REGNO (X))
 547 #else
 548 #define REG_OK_FOR_BASE_P(X) (GR_REGNO_P (REGNO (X)) \
 549                                 || REGNO (X) == ARG_POINTER_REGNUM \
 550                                 || REGNO (X) >= FIRST_PSEUDO_REGISTER)
 551 #endif
 552
 553 #define REG_OK_FOR_INDEX_P(X) REG_OK_FOR_BASE_P (X)
 554
 555 #define LEGITIMIZE_RELOAD_ADDRESS(X, MODE, OPNUM, TYPE, IND_LEVELS, WIN) \
 556   if (mep_legitimize_reload_address (&(X), (MODE), (OPNUM), (TYPE), (IND_LEVELS))) \
 557     goto WIN
 558
 559 #define GO_IF_MODE_DEPENDENT_ADDRESS(ADDR, LABEL)
 560
 561 #define LEGITIMATE_CONSTANT_P(X) \
 562   mep_legitimate_constant_p(X)
 563
 564 #define SELECT_CC_MODE(OP, X, Y)  CCmode
 565 \f
 566
 567 /* Moves between control regs need a scratch.  */
 568 #define REGISTER_MOVE_COST(MODE, FROM, TO) mep_register_move_cost (MODE, FROM, TO)
 569
 570 #define SLOW_BYTE_ACCESS 1
 571
 572 /* Define this macro if it is as good or better to call a constant function
 573    address than to call an address kept in a register.  */
 574 #define NO_FUNCTION_CSE
 575
 576 \f
 577 #define TEXT_SECTION_ASM_OP "\t.text\n\t.core"
 578 #define DATA_SECTION_ASM_OP "\t.data"
 579 #define BSS_SECTION_ASM_OP  ".bss"
 580
 581 #define USE_SELECT_SECTION_FOR_FUNCTIONS 1
 582
 583 #define JUMP_TABLES_IN_TEXT_SECTION 1
 584
 585 #define TARGET_ASM_FILE_END mep_file_cleanups
 586
 587 #define ASM_APP_ON "#APP\n"
 588 #define ASM_APP_OFF "#NO_APP\n"
 589
 590 #define ASM_OUTPUT_DOUBLE(FILE, VALUE)                          \
 591   do                                                            \
 592     {                                                           \
 593       long l[2];                                                \
 594                                                                 \
 595       REAL_VALUE_TO_TARGET_DOUBLE (VALUE, l);                   \
 596       fprintf (FILE, "\t.long\t0x%lx,0x%lx\n", l[0], l[1]);     \
 597     }                                                           \
 598   while (0)
 599
 600 #define ASM_OUTPUT_FLOAT(FILE, VALUE)           \
 601   do                                            \
 602     {                                           \
 603       long l;                                   \
 604                                                 \
 605       REAL_VALUE_TO_TARGET_SINGLE (VALUE, l);   \
 606       fprintf ((FILE), "\t.long\t0x%lx\n", l);  \
 607     }                                           \
 608   while (0)
 609
 610 #define ASM_OUTPUT_CHAR(FILE, VALUE)            \
 611   do                                            \
 612     {                                           \
 613       fprintf (FILE, "\t.byte\t");              \
 614       output_addr_const (FILE, (VALUE));        \
 615       fprintf (FILE, "\n");                     \
 616     }                                           \
 617   while (0)
 618
 619 #define ASM_OUTPUT_SHORT(FILE, VALUE)           \
 620   do                                            \
 621     {                                           \
 622       fprintf (FILE, "\t.hword\t");             \
 623       output_addr_const (FILE, (VALUE));        \
 624       fprintf (FILE, "\n");                     \
 625     }                                           \
 626   while (0)
 627
 628 #define ASM_OUTPUT_INT(FILE, VALUE)             \
 629   do                                            \
 630     {                                           \
 631       fprintf (FILE, "\t.word\t");              \
 632       output_addr_const (FILE, (VALUE));        \
 633       fprintf (FILE, "\n");                     \
 634     }                                           \
 635   while (0)
 636
 637 #define ASM_OUTPUT_BYTE(STREAM, VALUE) \
 638   fprintf (STREAM, "\t%s\t0x%x\n", ASM_BYTE_OP, (VALUE))
 639
 640 /* Most of these are here to support based/tiny/far/io attributes.  */
 641
 642 #define ASM_OUTPUT_ALIGNED_DECL_COMMON(STREAM, DECL, NAME, SIZE, ALIGNMENT) \
 643         mep_output_aligned_common (STREAM, DECL, NAME, SIZE, ALIGNMENT, 1)
 644
 645 #define ASM_OUTPUT_ALIGNED_DECL_LOCAL(STREAM, DECL, NAME, SIZE, ALIGNMENT) \
 646         mep_output_aligned_common (STREAM, DECL, NAME, SIZE, ALIGNMENT, 0)
 647
 648 #define ASM_OUTPUT_LABEL(STREAM, NAME)          \
 649   do                                            \
 650     {                                           \
 651       assemble_name (STREAM, NAME);             \
 652       fputs (":\n", STREAM);                    \
 653     }                                           \
 654   while (0)
 655
 656 /* Globalizing directive for a label.  */
 657 #define GLOBAL_ASM_OP "\t.globl "
 658
 659 #define ASM_OUTPUT_LABELREF(STREAM, NAME) \
 660   asm_fprintf ((STREAM), "%U%s", mep_strip_name_encoding (NAME))
 661
 662 #define ASM_FORMAT_PRIVATE_NAME(OUTVAR, NAME, NUMBER)           \
 663   do                                                            \
 664     {                                                           \
 665       (OUTVAR) = (char *) alloca (strlen ((NAME)) + 12);        \
 666       sprintf ((OUTVAR), "%s.%ld", (NAME), (long)(NUMBER));     \
 667     }                                                           \
 668   while (0)
 669 \f
 670
 671 #define REGISTER_NAMES                                                  \
 672 {                                                                       \
 673   /* Core registers.  */                                                \
 674   "$0", "$1", "$2", "$3", "$4", "$5", "$6", "$7",                       \
 675   "$8", "$9", "$10", "$11", "$12", "$tp", "$gp", "$sp",                 \
 676   /* Control registers.  */                                             \
 677   "$pc", "$lp", "$sar", "3", "$rpb", "$rpe", "$rpc", "$hi",             \
 678   "$lo", "9", "10", "11", "$mb0", "$me0", "$mb1", "$me1",               \
 679   "$psw", "$id", "$tmp", "$epc", "$exc", "$cfg", "22", "$npc",          \
 680   "$dbg", "$depc", "$opt", "$rcfg", "$ccfg", "29", "30", "31",          \
 681   /* Coprocessor registers.  */                                         \
 682   "$c0", "$c1", "$c2", "$c3", "$c4", "$c5", "$c6", "$c7",               \
 683   "$c8", "$c9", "$c10", "$c11", "$c12", "$c13", "$c14", "$c15",         \
 684   "$c16", "$c17", "$c18", "$c19", "$c20", "$c21", "$c22", "$c23",       \
 685   "$c24", "$c25", "$c26", "$c27", "$c28", "$c29", "$c30", "$c31",       \
 686   /* Coprocessor control registers.  */                                 \
 687   "$ccr0", "$ccr1", "$ccr2", "$ccr3", "$ccr4", "$ccr5", "$ccr6",        \
 688   "$ccr7", "$ccr8", "$ccr9", "$ccr10", "$ccr11", "$ccr12", "$ccr13",    \
 689   "$ccr14", "$ccr15", "$ccr16", "$ccr17", "$ccr18", "$ccr19", "$ccr20", \
 690   "$ccr21", "$ccr22", "$ccr23", "$ccr24", "$ccr25", "$ccr26", "$ccr27", \
 691   "$ccr28", "$ccr29", "$ccr30", "$ccr31",                               \
 692   /* Virtual arg pointer.  */                                           \
 693   "$argp", SHADOW_REGISTER_NAMES                                        \
 694 }
 695
 696 /* We duplicate some of the above because we twiddle the above
 697    according to *how* the registers are used.  Likewise, we include
 698    the standard names for coprocessor control registers so that
 699    coprocessor options can rename them in the default table.  Note
 700    that these are compared to stripped names (see REGISTER_PREFIX
 701    below).  */
 702 #define ADDITIONAL_REGISTER_NAMES               \
 703 {                                               \
 704   {  "8",  8 }, { "fp",  8 },                   \
 705   { "13", 13 }, { "tp", 13 },                   \
 706   { "14", 14 }, { "gp", 14 },                   \
 707   { "15", 15 }, { "sp", 15 },                   \
 708   { "ccr0", FIRST_CCR_REGNO + 0 },              \
 709   { "ccr1", FIRST_CCR_REGNO + 1 },              \
 710   { "ccr2", FIRST_CCR_REGNO + 2 },              \
 711   { "ccr3", FIRST_CCR_REGNO + 3 },              \
 712   { "ccr4", FIRST_CCR_REGNO + 4 },              \
 713   { "ccr5", FIRST_CCR_REGNO + 5 },              \
 714   { "ccr6", FIRST_CCR_REGNO + 6 },              \
 715   { "ccr7", FIRST_CCR_REGNO + 7 },              \
 716   { "ccr8", FIRST_CCR_REGNO + 8 },              \
 717   { "ccr9", FIRST_CCR_REGNO + 9 },              \
 718   { "ccr10", FIRST_CCR_REGNO + 10 },            \
 719   { "ccr11", FIRST_CCR_REGNO + 11 },            \
 720   { "ccr12", FIRST_CCR_REGNO + 12 },            \
 721   { "ccr13", FIRST_CCR_REGNO + 13 },            \
 722   { "ccr14", FIRST_CCR_REGNO + 14 },            \
 723   { "ccr15", FIRST_CCR_REGNO + 15 },            \
 724   { "ccr16", FIRST_CCR_REGNO + 16 },            \
 725   { "ccr17", FIRST_CCR_REGNO + 17 },            \
 726   { "ccr18", FIRST_CCR_REGNO + 18 },            \
 727   { "ccr19", FIRST_CCR_REGNO + 19 },            \
 728   { "ccr20", FIRST_CCR_REGNO + 20 },            \
 729   { "ccr21", FIRST_CCR_REGNO + 21 },            \
 730   { "ccr22", FIRST_CCR_REGNO + 22 },            \
 731   { "ccr23", FIRST_CCR_REGNO + 23 },            \
 732   { "ccr24", FIRST_CCR_REGNO + 24 },            \
 733   { "ccr25", FIRST_CCR_REGNO + 25 },            \
 734   { "ccr26", FIRST_CCR_REGNO + 26 },            \
 735   { "ccr27", FIRST_CCR_REGNO + 27 },            \
 736   { "ccr28", FIRST_CCR_REGNO + 28 },            \
 737   { "ccr29", FIRST_CCR_REGNO + 29 },            \
 738   { "ccr30", FIRST_CCR_REGNO + 30 },            \
 739   { "ccr31", FIRST_CCR_REGNO + 31 }             \
 740 }
 741
 742 /* We watch for pipeline hazards with these */
 743 #define ASM_OUTPUT_OPCODE(STREAM, PTR) mep_asm_output_opcode (STREAM, PTR)
 744 #define FINAL_PRESCAN_INSN(INSN, OPVEC, NOPERANDS) mep_final_prescan_insn (INSN, OPVEC, NOPERANDS)
 745
 746 #define PRINT_OPERAND(STREAM, X, CODE) mep_print_operand (STREAM, X, CODE)
 747
 748 #define PRINT_OPERAND_PUNCT_VALID_P(CODE) ((CODE) == '!' || (CODE) == '<')
 749
 750 #define PRINT_OPERAND_ADDRESS(STREAM, X) mep_print_operand_address (STREAM, X)
 751
 752 #define REGISTER_PREFIX    "$"
 753 #define LOCAL_LABEL_PREFIX "."
 754 #define USER_LABEL_PREFIX  ""
 755 #define IMMEDIATE_PREFIX   ""
 756
 757 \f
 758
 759 #define ASM_OUTPUT_ADDR_VEC_ELT(STREAM, VALUE) \
 760   fprintf (STREAM, "\t.word .L%d\n", VALUE)
 761
 762 \f
 763
 764 #undef  PREFERRED_DEBUGGING_TYPE
 765 #define PREFERRED_DEBUGGING_TYPE  DWARF2_DEBUG
 766 #define DWARF2_DEBUGGING_INFO     1
 767 #define DWARF2_UNWIND_INFO        1
 768
 769 #define EH_RETURN_DATA_REGNO(N) ((N) < 2 ? (N) + 10 : INVALID_REGNUM)
 770
 771 #define EH_RETURN_STACKADJ_RTX mep_return_stackadj_rtx ()
 772 #define EH_RETURN_HANDLER_RTX  mep_return_handler_rtx ()
 773
 774 #define DBX_REGISTER_NUMBER(REGNO) (REGNO)
 775
 776 \f
 777
 778 #define ASM_OUTPUT_ALIGN(STREAM, POWER) \
 779   fprintf ((STREAM), "\t.p2align %d\n", (POWER))
 780
 781 \f
 782
 783 #define CASE_VECTOR_MODE SImode
 784
 785 #define WORD_REGISTER_OPERATIONS
 786 #define LOAD_EXTEND_OP(MODE) SIGN_EXTEND
 787
 788 #define SHORT_IMMEDIATES_SIGN_EXTEND
 789
 790 #define MOVE_MAX 4
 791
 792 #define SHIFT_COUNT_TRUNCATED 1
 793
 794 #define TRULY_NOOP_TRUNCATION(OUTPREC, INPREC) 1
 795
 796 #define STORE_FLAG_VALUE 1
 797
 798 #define Pmode SImode
 799
 800 #define FUNCTION_MODE SImode
 801
 802 #define REGISTER_TARGET_PRAGMAS()        mep_register_pragmas ()
 803
 804 /* If defined, a C expression to determine the base term of address X.
 805    This macro is used in only one place: `find_base_term' in alias.c.
 806
 807    It is always safe for this macro to not be defined.  It exists so
 808    that alias analysis can understand machine-dependent addresses.
 809
 810    The typical use of this macro is to handle addresses containing
 811    a label_ref or symbol_ref within an UNSPEC.  */
 812 #define FIND_BASE_TERM(X) mep_find_base_term (X)