Mercurial > hg > CbC > CbC_gcc
annotate gcc/config/v850/v850.h @ 55:77e2b8dfacca gcc-4.4.5
update it from 4.4.3 to 4.5.0
| author | ryoma <e075725@ie.u-ryukyu.ac.jp> |
|---|---|
| date | Fri, 12 Feb 2010 23:39:51 +0900 |
| parents | a06113de4d67 |
| children | f6334be47118 |
| rev | line source |
|---|---|
| 0 | 1 /* Definitions of target machine for GNU compiler. NEC V850 series |
| 2 Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, | |
|
55
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
3 2007, 2008, 2009 Free Software Foundation, Inc. |
| 0 | 4 Contributed by Jeff Law (law@cygnus.com). |
| 5 | |
| 6 This file is part of GCC. | |
| 7 | |
| 8 GCC is free software; you can redistribute it and/or modify | |
| 9 it under the terms of the GNU General Public License as published by | |
| 10 the Free Software Foundation; either version 3, or (at your option) | |
| 11 any later version. | |
| 12 | |
| 13 GCC is distributed in the hope that it will be useful, | |
| 14 but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 16 GNU General Public License 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 | |
| 22 #ifndef GCC_V850_H | |
| 23 #define GCC_V850_H | |
| 24 | |
| 25 /* These are defined in svr4.h but we want to override them. */ | |
| 26 #undef LIB_SPEC | |
| 27 #undef ENDFILE_SPEC | |
| 28 #undef LINK_SPEC | |
| 29 #undef STARTFILE_SPEC | |
| 30 #undef ASM_SPEC | |
| 31 | |
| 32 #define TARGET_CPU_generic 1 | |
| 33 #define TARGET_CPU_v850e 2 | |
| 34 #define TARGET_CPU_v850e1 3 | |
| 35 | |
| 36 #ifndef TARGET_CPU_DEFAULT | |
| 37 #define TARGET_CPU_DEFAULT TARGET_CPU_generic | |
| 38 #endif | |
| 39 | |
| 40 #define MASK_DEFAULT MASK_V850 | |
| 41 #define SUBTARGET_ASM_SPEC "%{!mv*:-mv850}" | |
| 42 #define SUBTARGET_CPP_SPEC "%{!mv*:-D__v850__}" | |
| 43 #define TARGET_VERSION fprintf (stderr, " (NEC V850)"); | |
| 44 | |
| 45 /* Choose which processor will be the default. | |
| 46 We must pass a -mv850xx option to the assembler if no explicit -mv* option | |
| 47 is given, because the assembler's processor default may not be correct. */ | |
| 48 #if TARGET_CPU_DEFAULT == TARGET_CPU_v850e | |
| 49 #undef MASK_DEFAULT | |
| 50 #define MASK_DEFAULT MASK_V850E | |
| 51 #undef SUBTARGET_ASM_SPEC | |
| 52 #define SUBTARGET_ASM_SPEC "%{!mv*:-mv850e}" | |
| 53 #undef SUBTARGET_CPP_SPEC | |
| 54 #define SUBTARGET_CPP_SPEC "%{!mv*:-D__v850e__}" | |
| 55 #undef TARGET_VERSION | |
| 56 #define TARGET_VERSION fprintf (stderr, " (NEC V850E)"); | |
| 57 #endif | |
| 58 | |
| 59 #if TARGET_CPU_DEFAULT == TARGET_CPU_v850e1 | |
| 60 #undef MASK_DEFAULT | |
| 61 #define MASK_DEFAULT MASK_V850E /* No practical difference. */ | |
| 62 #undef SUBTARGET_ASM_SPEC | |
| 63 #define SUBTARGET_ASM_SPEC "%{!mv*:-mv850e1}" | |
| 64 #undef SUBTARGET_CPP_SPEC | |
| 65 #define SUBTARGET_CPP_SPEC "%{!mv*:-D__v850e1__} %{mv850e1:-D__v850e1__}" | |
| 66 #undef TARGET_VERSION | |
| 67 #define TARGET_VERSION fprintf (stderr, " (NEC V850E1)"); | |
| 68 #endif | |
| 69 | |
| 70 #define ASM_SPEC "%{mv*:-mv%*}" | |
| 71 #define CPP_SPEC "%{mv850e:-D__v850e__} %{mv850:-D__v850__} %(subtarget_cpp_spec)" | |
| 72 | |
| 73 #define EXTRA_SPECS \ | |
| 74 { "subtarget_asm_spec", SUBTARGET_ASM_SPEC }, \ | |
| 75 { "subtarget_cpp_spec", SUBTARGET_CPP_SPEC } | |
| 76 | |
| 77 /* Names to predefine in the preprocessor for this target machine. */ | |
| 78 #define TARGET_CPU_CPP_BUILTINS() do { \ | |
| 79 builtin_define( "__v851__" ); \ | |
| 80 builtin_define( "__v850" ); \ | |
| 81 builtin_assert( "machine=v850" ); \ | |
| 82 builtin_assert( "cpu=v850" ); \ | |
| 83 if (TARGET_EP) \ | |
| 84 builtin_define ("__EP__"); \ | |
| 85 } while(0) | |
| 86 | |
| 87 #define MASK_CPU (MASK_V850 | MASK_V850E) | |
| 88 | |
| 89 /* Information about the various small memory areas. */ | |
| 90 struct small_memory_info { | |
| 91 const char *name; | |
| 92 long max; | |
| 93 long physical_max; | |
| 94 }; | |
| 95 | |
| 96 enum small_memory_type { | |
| 97 /* tiny data area, using EP as base register */ | |
| 98 SMALL_MEMORY_TDA = 0, | |
| 99 /* small data area using dp as base register */ | |
| 100 SMALL_MEMORY_SDA, | |
| 101 /* zero data area using r0 as base register */ | |
| 102 SMALL_MEMORY_ZDA, | |
| 103 SMALL_MEMORY_max | |
| 104 }; | |
| 105 | |
| 106 extern struct small_memory_info small_memory[(int)SMALL_MEMORY_max]; | |
| 107 | |
| 108 /* Show we can debug even without a frame pointer. */ | |
| 109 #define CAN_DEBUG_WITHOUT_FP | |
| 110 | |
| 111 /* Some machines may desire to change what optimizations are | |
| 112 performed for various optimization levels. This macro, if | |
| 113 defined, is executed once just after the optimization level is | |
| 114 determined and before the remainder of the command options have | |
| 115 been parsed. Values set in this macro are used as the default | |
| 116 values for the other command line options. | |
| 117 | |
| 118 LEVEL is the optimization level specified; 2 if `-O2' is | |
| 119 specified, 1 if `-O' is specified, and 0 if neither is specified. | |
| 120 | |
| 121 SIZE is nonzero if `-Os' is specified, 0 otherwise. | |
| 122 | |
| 123 You should not use this macro to change options that are not | |
| 124 machine-specific. These should uniformly selected by the same | |
| 125 optimization level on all supported machines. Use this macro to | |
| 126 enable machine-specific optimizations. | |
| 127 | |
| 128 *Do not examine `write_symbols' in this macro!* The debugging | |
| 129 options are not supposed to alter the generated code. */ | |
| 130 | |
| 131 #define OPTIMIZATION_OPTIONS(LEVEL,SIZE) \ | |
| 132 { \ | |
| 133 target_flags |= MASK_STRICT_ALIGN; \ | |
| 134 if (LEVEL) \ | |
| 135 /* Note - we no longer enable MASK_EP when optimizing. This is \ | |
| 136 because of a hardware bug which stops the SLD and SST instructions\ | |
| 137 from correctly detecting some hazards. If the user is sure that \ | |
| 138 their hardware is fixed or that their program will not encounter \ | |
| 139 the conditions that trigger the bug then they can enable -mep by \ | |
| 140 hand. */ \ | |
| 141 target_flags |= MASK_PROLOG_FUNCTION; \ | |
| 142 } | |
| 143 | |
| 144 | |
| 145 /* Target machine storage layout */ | |
| 146 | |
| 147 /* Define this if most significant bit is lowest numbered | |
| 148 in instructions that operate on numbered bit-fields. | |
| 149 This is not true on the NEC V850. */ | |
| 150 #define BITS_BIG_ENDIAN 0 | |
| 151 | |
| 152 /* Define this if most significant byte of a word is the lowest numbered. */ | |
| 153 /* This is not true on the NEC V850. */ | |
| 154 #define BYTES_BIG_ENDIAN 0 | |
| 155 | |
| 156 /* Define this if most significant word of a multiword number is lowest | |
| 157 numbered. | |
| 158 This is not true on the NEC V850. */ | |
| 159 #define WORDS_BIG_ENDIAN 0 | |
| 160 | |
| 161 /* Width of a word, in units (bytes). */ | |
| 162 #define UNITS_PER_WORD 4 | |
| 163 | |
| 164 /* Define this macro if it is advisable to hold scalars in registers | |
| 165 in a wider mode than that declared by the program. In such cases, | |
| 166 the value is constrained to be within the bounds of the declared | |
| 167 type, but kept valid in the wider mode. The signedness of the | |
| 168 extension may differ from that of the type. | |
| 169 | |
| 170 Some simple experiments have shown that leaving UNSIGNEDP alone | |
| 171 generates the best overall code. */ | |
| 172 | |
| 173 #define PROMOTE_MODE(MODE,UNSIGNEDP,TYPE) \ | |
| 174 if (GET_MODE_CLASS (MODE) == MODE_INT \ | |
| 175 && GET_MODE_SIZE (MODE) < 4) \ | |
| 176 { (MODE) = SImode; } | |
| 177 | |
| 178 /* Allocation boundary (in *bits*) for storing arguments in argument list. */ | |
| 179 #define PARM_BOUNDARY 32 | |
| 180 | |
| 181 /* The stack goes in 32-bit lumps. */ | |
| 182 #define STACK_BOUNDARY 32 | |
| 183 | |
| 184 /* Allocation boundary (in *bits*) for the code of a function. | |
| 185 16 is the minimum boundary; 32 would give better performance. */ | |
| 186 #define FUNCTION_BOUNDARY 16 | |
| 187 | |
| 188 /* No data type wants to be aligned rounder than this. */ | |
| 189 #define BIGGEST_ALIGNMENT 32 | |
| 190 | |
| 191 /* Alignment of field after `int : 0' in a structure. */ | |
| 192 #define EMPTY_FIELD_BOUNDARY 32 | |
| 193 | |
| 194 /* No structure field wants to be aligned rounder than this. */ | |
| 195 #define BIGGEST_FIELD_ALIGNMENT 32 | |
| 196 | |
| 197 /* Define this if move instructions will actually fail to work | |
| 198 when given unaligned data. */ | |
| 199 #define STRICT_ALIGNMENT TARGET_STRICT_ALIGN | |
| 200 | |
| 201 /* Define this as 1 if `char' should by default be signed; else as 0. | |
| 202 | |
| 203 On the NEC V850, loads do sign extension, so make this default. */ | |
| 204 #define DEFAULT_SIGNED_CHAR 1 | |
| 205 | |
| 206 /* Standard register usage. */ | |
| 207 | |
| 208 /* Number of actual hardware registers. | |
| 209 The hardware registers are assigned numbers for the compiler | |
| 210 from 0 to just below FIRST_PSEUDO_REGISTER. | |
| 211 | |
| 212 All registers that the compiler knows about must be given numbers, | |
| 213 even those that are not normally considered general registers. */ | |
| 214 | |
| 215 #define FIRST_PSEUDO_REGISTER 34 | |
| 216 | |
| 217 /* 1 for registers that have pervasive standard uses | |
| 218 and are not available for the register allocator. */ | |
| 219 | |
| 220 #define FIXED_REGISTERS \ | |
| 221 { 1, 1, 0, 1, 1, 0, 0, 0, \ | |
| 222 0, 0, 0, 0, 0, 0, 0, 0, \ | |
| 223 0, 0, 0, 0, 0, 0, 0, 0, \ | |
| 224 0, 0, 0, 0, 0, 0, 1, 0, \ | |
| 225 1, 1} | |
| 226 | |
| 227 /* 1 for registers not available across function calls. | |
| 228 These must include the FIXED_REGISTERS and also any | |
| 229 registers that can be used without being saved. | |
| 230 The latter must include the registers where values are returned | |
| 231 and the register where structure-value addresses are passed. | |
| 232 Aside from that, you can include as many other registers as you | |
| 233 like. */ | |
| 234 | |
| 235 #define CALL_USED_REGISTERS \ | |
| 236 { 1, 1, 0, 1, 1, 1, 1, 1, \ | |
| 237 1, 1, 1, 1, 1, 1, 1, 1, \ | |
| 238 1, 1, 1, 1, 0, 0, 0, 0, \ | |
| 239 0, 0, 0, 0, 0, 0, 1, 1, \ | |
| 240 1, 1} | |
| 241 | |
| 242 /* List the order in which to allocate registers. Each register must be | |
| 243 listed once, even those in FIXED_REGISTERS. | |
| 244 | |
| 245 On the 850, we make the return registers first, then all of the volatile | |
| 246 registers, then the saved registers in reverse order to better save the | |
| 247 registers with an out of line function, and finally the fixed | |
| 248 registers. */ | |
| 249 | |
| 250 #define REG_ALLOC_ORDER \ | |
| 251 { \ | |
| 252 10, 11, /* return registers */ \ | |
| 253 12, 13, 14, 15, 16, 17, 18, 19, /* scratch registers */ \ | |
| 254 6, 7, 8, 9, 31, /* argument registers */ \ | |
| 255 29, 28, 27, 26, 25, 24, 23, 22, /* saved registers */ \ | |
| 256 21, 20, 2, \ | |
| 257 0, 1, 3, 4, 5, 30, 32, 33 /* fixed registers */ \ | |
| 258 } | |
| 259 | |
| 260 /* If TARGET_APP_REGS is not defined then add r2 and r5 to | |
| 261 the pool of fixed registers. See PR 14505. */ | |
| 262 #define CONDITIONAL_REGISTER_USAGE \ | |
| 263 { \ | |
| 264 if (!TARGET_APP_REGS) \ | |
| 265 { \ | |
| 266 fixed_regs[2] = 1; call_used_regs[2] = 1; \ | |
| 267 fixed_regs[5] = 1; call_used_regs[5] = 1; \ | |
| 268 } \ | |
| 269 } | |
| 270 | |
| 271 /* Return number of consecutive hard regs needed starting at reg REGNO | |
| 272 to hold something of mode MODE. | |
| 273 | |
| 274 This is ordinarily the length in words of a value of mode MODE | |
| 275 but can be less for certain modes in special long registers. */ | |
| 276 | |
| 277 #define HARD_REGNO_NREGS(REGNO, MODE) \ | |
| 278 ((GET_MODE_SIZE (MODE) + UNITS_PER_WORD - 1) / UNITS_PER_WORD) | |
| 279 | |
| 280 /* Value is 1 if hard register REGNO can hold a value of machine-mode | |
| 281 MODE. */ | |
| 282 | |
| 283 #define HARD_REGNO_MODE_OK(REGNO, MODE) \ | |
| 284 ((((REGNO) & 1) == 0) || (GET_MODE_SIZE (MODE) <= 4)) | |
| 285 | |
| 286 /* Value is 1 if it is a good idea to tie two pseudo registers | |
| 287 when one has mode MODE1 and one has mode MODE2. | |
| 288 If HARD_REGNO_MODE_OK could produce different values for MODE1 and MODE2, | |
| 289 for any hard reg, then this must be 0 for correct output. */ | |
| 290 #define MODES_TIEABLE_P(MODE1, MODE2) \ | |
| 291 (MODE1 == MODE2 || (GET_MODE_SIZE (MODE1) <= 4 && GET_MODE_SIZE (MODE2) <= 4)) | |
| 292 | |
| 293 | |
| 294 /* Define the classes of registers for register constraints in the | |
| 295 machine description. Also define ranges of constants. | |
| 296 | |
| 297 One of the classes must always be named ALL_REGS and include all hard regs. | |
| 298 If there is more than one class, another class must be named NO_REGS | |
| 299 and contain no registers. | |
| 300 | |
| 301 The name GENERAL_REGS must be the name of a class (or an alias for | |
| 302 another name such as ALL_REGS). This is the class of registers | |
| 303 that is allowed by "g" or "r" in a register constraint. | |
| 304 Also, registers outside this class are allocated only when | |
| 305 instructions express preferences for them. | |
| 306 | |
| 307 The classes must be numbered in nondecreasing order; that is, | |
| 308 a larger-numbered class must never be contained completely | |
| 309 in a smaller-numbered class. | |
| 310 | |
| 311 For any two classes, it is very desirable that there be another | |
| 312 class that represents their union. */ | |
| 313 | |
| 314 enum reg_class | |
| 315 { | |
| 316 NO_REGS, GENERAL_REGS, ALL_REGS, LIM_REG_CLASSES | |
| 317 }; | |
| 318 | |
| 319 #define N_REG_CLASSES (int) LIM_REG_CLASSES | |
| 320 | |
| 321 #define IRA_COVER_CLASSES \ | |
| 322 { \ | |
| 323 GENERAL_REGS, LIM_REG_CLASSES \ | |
| 324 } | |
| 325 | |
| 326 /* Give names of register classes as strings for dump file. */ | |
| 327 | |
| 328 #define REG_CLASS_NAMES \ | |
| 329 { "NO_REGS", "GENERAL_REGS", "ALL_REGS", "LIM_REGS" } | |
| 330 | |
| 331 /* Define which registers fit in which classes. | |
| 332 This is an initializer for a vector of HARD_REG_SET | |
| 333 of length N_REG_CLASSES. */ | |
| 334 | |
| 335 #define REG_CLASS_CONTENTS \ | |
| 336 { \ | |
| 337 { 0x00000000 }, /* NO_REGS */ \ | |
| 338 { 0xffffffff }, /* GENERAL_REGS */ \ | |
| 339 { 0xffffffff }, /* ALL_REGS */ \ | |
| 340 } | |
| 341 | |
| 342 /* The same information, inverted: | |
| 343 Return the class number of the smallest class containing | |
| 344 reg number REGNO. This could be a conditional expression | |
| 345 or could index an array. */ | |
| 346 | |
| 347 #define REGNO_REG_CLASS(REGNO) GENERAL_REGS | |
| 348 | |
| 349 /* The class value for index registers, and the one for base regs. */ | |
| 350 | |
| 351 #define INDEX_REG_CLASS NO_REGS | |
| 352 #define BASE_REG_CLASS GENERAL_REGS | |
| 353 | |
| 354 /* Get reg_class from a letter such as appears in the machine description. */ | |
| 355 | |
| 356 #define REG_CLASS_FROM_LETTER(C) (NO_REGS) | |
| 357 | |
| 358 /* Macros to check register numbers against specific register classes. */ | |
| 359 | |
| 360 /* These assume that REGNO is a hard or pseudo reg number. | |
| 361 They give nonzero only if REGNO is a hard reg of the suitable class | |
| 362 or a pseudo reg currently allocated to a suitable hard reg. | |
| 363 Since they use reg_renumber, they are safe only once reg_renumber | |
| 364 has been allocated, which happens in local-alloc.c. */ | |
| 365 | |
| 366 #define REGNO_OK_FOR_BASE_P(regno) \ | |
| 367 ((regno) < FIRST_PSEUDO_REGISTER || reg_renumber[regno] >= 0) | |
| 368 | |
| 369 #define REGNO_OK_FOR_INDEX_P(regno) 0 | |
| 370 | |
| 371 /* Given an rtx X being reloaded into a reg required to be | |
| 372 in class CLASS, return the class of reg to actually use. | |
| 373 In general this is just CLASS; but on some machines | |
| 374 in some cases it is preferable to use a more restrictive class. */ | |
| 375 | |
| 376 #define PREFERRED_RELOAD_CLASS(X,CLASS) (CLASS) | |
| 377 | |
| 378 /* Return the maximum number of consecutive registers | |
| 379 needed to represent mode MODE in a register of class CLASS. */ | |
| 380 | |
| 381 #define CLASS_MAX_NREGS(CLASS, MODE) \ | |
| 382 ((GET_MODE_SIZE (MODE) + UNITS_PER_WORD - 1) / UNITS_PER_WORD) | |
| 383 | |
| 384 /* The letters I, J, K, L, M, N, O, P in a register constraint string | |
| 385 can be used to stand for particular ranges of immediate operands. | |
| 386 This macro defines what the ranges are. | |
| 387 C is the letter, and VALUE is a constant value. | |
| 388 Return 1 if VALUE is in the range specified by C. */ | |
| 389 | |
| 390 #define INT_7_BITS(VALUE) ((unsigned) (VALUE) + 0x40 < 0x80) | |
| 391 #define INT_8_BITS(VALUE) ((unsigned) (VALUE) + 0x80 < 0x100) | |
| 392 /* zero */ | |
| 393 #define CONST_OK_FOR_I(VALUE) ((VALUE) == 0) | |
| 394 /* 5-bit signed immediate */ | |
| 395 #define CONST_OK_FOR_J(VALUE) ((unsigned) (VALUE) + 0x10 < 0x20) | |
| 396 /* 16-bit signed immediate */ | |
| 397 #define CONST_OK_FOR_K(VALUE) ((unsigned) (VALUE) + 0x8000 < 0x10000) | |
| 398 /* valid constant for movhi instruction. */ | |
| 399 #define CONST_OK_FOR_L(VALUE) \ | |
| 400 (((unsigned) ((int) (VALUE) >> 16) + 0x8000 < 0x10000) \ | |
| 401 && CONST_OK_FOR_I ((VALUE & 0xffff))) | |
| 402 /* 16-bit unsigned immediate */ | |
| 403 #define CONST_OK_FOR_M(VALUE) ((unsigned)(VALUE) < 0x10000) | |
| 404 /* 5-bit unsigned immediate in shift instructions */ | |
| 405 #define CONST_OK_FOR_N(VALUE) ((unsigned) (VALUE) <= 31) | |
| 406 /* 9-bit signed immediate for word multiply instruction. */ | |
| 407 #define CONST_OK_FOR_O(VALUE) ((unsigned) (VALUE) + 0x100 < 0x200) | |
| 408 | |
| 409 #define CONST_OK_FOR_P(VALUE) 0 | |
| 410 | |
| 411 #define CONST_OK_FOR_LETTER_P(VALUE, C) \ | |
| 412 ((C) == 'I' ? CONST_OK_FOR_I (VALUE) : \ | |
| 413 (C) == 'J' ? CONST_OK_FOR_J (VALUE) : \ | |
| 414 (C) == 'K' ? CONST_OK_FOR_K (VALUE) : \ | |
| 415 (C) == 'L' ? CONST_OK_FOR_L (VALUE) : \ | |
| 416 (C) == 'M' ? CONST_OK_FOR_M (VALUE) : \ | |
| 417 (C) == 'N' ? CONST_OK_FOR_N (VALUE) : \ | |
| 418 (C) == 'O' ? CONST_OK_FOR_O (VALUE) : \ | |
| 419 (C) == 'P' ? CONST_OK_FOR_P (VALUE) : \ | |
| 420 0) | |
| 421 | |
| 422 /* Similar, but for floating constants, and defining letters G and H. | |
| 423 Here VALUE is the CONST_DOUBLE rtx itself. | |
| 424 | |
| 425 `G' is a zero of some form. */ | |
| 426 | |
| 427 #define CONST_DOUBLE_OK_FOR_G(VALUE) \ | |
| 428 ((GET_MODE_CLASS (GET_MODE (VALUE)) == MODE_FLOAT \ | |
| 429 && (VALUE) == CONST0_RTX (GET_MODE (VALUE))) \ | |
| 430 || (GET_MODE_CLASS (GET_MODE (VALUE)) == MODE_INT \ | |
| 431 && CONST_DOUBLE_LOW (VALUE) == 0 \ | |
| 432 && CONST_DOUBLE_HIGH (VALUE) == 0)) | |
| 433 | |
| 434 #define CONST_DOUBLE_OK_FOR_H(VALUE) 0 | |
| 435 | |
| 436 #define CONST_DOUBLE_OK_FOR_LETTER_P(VALUE, C) \ | |
| 437 ((C) == 'G' ? CONST_DOUBLE_OK_FOR_G (VALUE) \ | |
| 438 : (C) == 'H' ? CONST_DOUBLE_OK_FOR_H (VALUE) \ | |
| 439 : 0) | |
| 440 | |
| 441 | |
| 442 /* Stack layout; function entry, exit and calling. */ | |
| 443 | |
| 444 /* Define this if pushing a word on the stack | |
| 445 makes the stack pointer a smaller address. */ | |
| 446 | |
| 447 #define STACK_GROWS_DOWNWARD | |
| 448 | |
| 449 /* Define this to nonzero if the nominal address of the stack frame | |
| 450 is at the high-address end of the local variables; | |
| 451 that is, each additional local variable allocated | |
| 452 goes at a more negative offset in the frame. */ | |
| 453 | |
| 454 #define FRAME_GROWS_DOWNWARD 1 | |
| 455 | |
| 456 /* Offset within stack frame to start allocating local variables at. | |
| 457 If FRAME_GROWS_DOWNWARD, this is the offset to the END of the | |
| 458 first local allocated. Otherwise, it is the offset to the BEGINNING | |
| 459 of the first local allocated. */ | |
| 460 | |
| 461 #define STARTING_FRAME_OFFSET 0 | |
| 462 | |
| 463 /* Offset of first parameter from the argument pointer register value. */ | |
| 464 /* Is equal to the size of the saved fp + pc, even if an fp isn't | |
| 465 saved since the value is used before we know. */ | |
| 466 | |
| 467 #define FIRST_PARM_OFFSET(FNDECL) 0 | |
| 468 | |
| 469 /* Specify the registers used for certain standard purposes. | |
| 470 The values of these macros are register numbers. */ | |
| 471 | |
| 472 /* Register to use for pushing function arguments. */ | |
| 473 #define STACK_POINTER_REGNUM 3 | |
| 474 | |
| 475 /* Base register for access to local variables of the function. */ | |
| 476 #define FRAME_POINTER_REGNUM 32 | |
| 477 | |
| 478 /* Register containing return address from latest function call. */ | |
| 479 #define LINK_POINTER_REGNUM 31 | |
| 480 | |
| 481 /* On some machines the offset between the frame pointer and starting | |
| 482 offset of the automatic variables is not known until after register | |
| 483 allocation has been done (for example, because the saved registers | |
| 484 are between these two locations). On those machines, define | |
| 485 `FRAME_POINTER_REGNUM' the number of a special, fixed register to | |
| 486 be used internally until the offset is known, and define | |
| 487 `HARD_FRAME_POINTER_REGNUM' to be actual the hard register number | |
| 488 used for the frame pointer. | |
| 489 | |
| 490 You should define this macro only in the very rare circumstances | |
| 491 when it is not possible to calculate the offset between the frame | |
| 492 pointer and the automatic variables until after register | |
| 493 allocation has been completed. When this macro is defined, you | |
| 494 must also indicate in your definition of `ELIMINABLE_REGS' how to | |
| 495 eliminate `FRAME_POINTER_REGNUM' into either | |
| 496 `HARD_FRAME_POINTER_REGNUM' or `STACK_POINTER_REGNUM'. | |
| 497 | |
| 498 Do not define this macro if it would be the same as | |
| 499 `FRAME_POINTER_REGNUM'. */ | |
| 500 #undef HARD_FRAME_POINTER_REGNUM | |
| 501 #define HARD_FRAME_POINTER_REGNUM 29 | |
| 502 | |
| 503 /* Base register for access to arguments of the function. */ | |
| 504 #define ARG_POINTER_REGNUM 33 | |
| 505 | |
| 506 /* Register in which static-chain is passed to a function. */ | |
| 507 #define STATIC_CHAIN_REGNUM 20 | |
| 508 | |
| 509 /* If defined, this macro specifies a table of register pairs used to | |
| 510 eliminate unneeded registers that point into the stack frame. If | |
| 511 it is not defined, the only elimination attempted by the compiler | |
| 512 is to replace references to the frame pointer with references to | |
| 513 the stack pointer. | |
| 514 | |
| 515 The definition of this macro is a list of structure | |
| 516 initializations, each of which specifies an original and | |
| 517 replacement register. | |
| 518 | |
| 519 On some machines, the position of the argument pointer is not | |
| 520 known until the compilation is completed. In such a case, a | |
| 521 separate hard register must be used for the argument pointer. | |
| 522 This register can be eliminated by replacing it with either the | |
| 523 frame pointer or the argument pointer, depending on whether or not | |
| 524 the frame pointer has been eliminated. | |
| 525 | |
| 526 In this case, you might specify: | |
| 527 #define ELIMINABLE_REGS \ | |
| 528 {{ARG_POINTER_REGNUM, STACK_POINTER_REGNUM}, \ | |
| 529 {ARG_POINTER_REGNUM, FRAME_POINTER_REGNUM}, \ | |
| 530 {FRAME_POINTER_REGNUM, STACK_POINTER_REGNUM}} | |
| 531 | |
| 532 Note that the elimination of the argument pointer with the stack | |
| 533 pointer is specified first since that is the preferred elimination. */ | |
| 534 | |
| 535 #define ELIMINABLE_REGS \ | |
| 536 {{ FRAME_POINTER_REGNUM, STACK_POINTER_REGNUM }, \ | |
| 537 { FRAME_POINTER_REGNUM, HARD_FRAME_POINTER_REGNUM }, \ | |
| 538 { ARG_POINTER_REGNUM, STACK_POINTER_REGNUM }, \ | |
| 539 { ARG_POINTER_REGNUM, HARD_FRAME_POINTER_REGNUM }} \ | |
| 540 | |
| 541 /* This macro is similar to `INITIAL_FRAME_POINTER_OFFSET'. It | |
| 542 specifies the initial difference between the specified pair of | |
| 543 registers. This macro must be defined if `ELIMINABLE_REGS' is | |
| 544 defined. */ | |
| 545 | |
| 546 #define INITIAL_ELIMINATION_OFFSET(FROM, TO, OFFSET) \ | |
| 547 { \ | |
| 548 if ((FROM) == FRAME_POINTER_REGNUM) \ | |
| 549 (OFFSET) = get_frame_size () + crtl->outgoing_args_size; \ | |
| 550 else if ((FROM) == ARG_POINTER_REGNUM) \ | |
| 551 (OFFSET) = compute_frame_size (get_frame_size (), (long *)0); \ | |
| 552 else \ | |
| 553 gcc_unreachable (); \ | |
| 554 } | |
| 555 | |
| 556 /* Keep the stack pointer constant throughout the function. */ | |
| 557 #define ACCUMULATE_OUTGOING_ARGS 1 | |
| 558 | |
| 559 /* Value is the number of bytes of arguments automatically | |
| 560 popped when returning from a subroutine call. | |
| 561 FUNDECL is the declaration node of the function (as a tree), | |
| 562 FUNTYPE is the data type of the function (as a tree), | |
| 563 or for a library call it is an identifier node for the subroutine name. | |
| 564 SIZE is the number of bytes of arguments passed on the stack. */ | |
| 565 | |
| 566 #define RETURN_POPS_ARGS(FUNDECL,FUNTYPE,SIZE) 0 | |
| 567 | |
| 568 #define RETURN_ADDR_RTX(COUNT, FP) v850_return_addr (COUNT) | |
| 569 | |
| 570 /* Define a data type for recording info about an argument list | |
| 571 during the scan of that argument list. This data type should | |
| 572 hold all necessary information about the function itself | |
| 573 and about the args processed so far, enough to enable macros | |
| 574 such as FUNCTION_ARG to determine where the next arg should go. */ | |
| 575 | |
| 576 #define CUMULATIVE_ARGS struct cum_arg | |
| 577 struct cum_arg { int nbytes; int anonymous_args; }; | |
| 578 | |
| 579 /* Define where to put the arguments to a function. | |
| 580 Value is zero to push the argument on the stack, | |
| 581 or a hard register in which to store the argument. | |
| 582 | |
| 583 MODE is the argument's machine mode. | |
| 584 TYPE is the data type of the argument (as a tree). | |
| 585 This is null for libcalls where that information may | |
| 586 not be available. | |
| 587 CUM is a variable of type CUMULATIVE_ARGS which gives info about | |
| 588 the preceding args and about the function being called. | |
| 589 NAMED is nonzero if this argument is a named parameter | |
| 590 (otherwise it is an extra parameter matching an ellipsis). */ | |
| 591 | |
| 592 #define FUNCTION_ARG(CUM, MODE, TYPE, NAMED) \ | |
| 593 function_arg (&CUM, MODE, TYPE, NAMED) | |
| 594 | |
| 595 /* Initialize a variable CUM of type CUMULATIVE_ARGS | |
| 596 for a call to a function whose data type is FNTYPE. | |
| 597 For a library call, FNTYPE is 0. */ | |
| 598 | |
| 599 #define INIT_CUMULATIVE_ARGS(CUM, FNTYPE, LIBNAME, INDIRECT, N_NAMED_ARGS) \ | |
| 600 ((CUM).nbytes = 0, (CUM).anonymous_args = 0) | |
| 601 | |
| 602 /* Update the data in CUM to advance over an argument | |
| 603 of mode MODE and data type TYPE. | |
| 604 (TYPE is null for libcalls where that information may not be available.) */ | |
| 605 | |
| 606 #define FUNCTION_ARG_ADVANCE(CUM, MODE, TYPE, NAMED) \ | |
| 607 ((CUM).nbytes += ((MODE) != BLKmode \ | |
| 608 ? (GET_MODE_SIZE (MODE) + UNITS_PER_WORD - 1) & -UNITS_PER_WORD \ | |
| 609 : (int_size_in_bytes (TYPE) + UNITS_PER_WORD - 1) & -UNITS_PER_WORD)) | |
| 610 | |
| 611 /* When a parameter is passed in a register, stack space is still | |
| 612 allocated for it. */ | |
| 613 #define REG_PARM_STACK_SPACE(DECL) (!TARGET_GHS ? 16 : 0) | |
| 614 | |
| 615 /* Define this if the above stack space is to be considered part of the | |
| 616 space allocated by the caller. */ | |
| 617 #define OUTGOING_REG_PARM_STACK_SPACE(FNTYPE) 1 | |
| 618 | |
| 619 /* 1 if N is a possible register number for function argument passing. */ | |
| 620 | |
| 621 #define FUNCTION_ARG_REGNO_P(N) (N >= 6 && N <= 9) | |
| 622 | |
| 623 /* Define how to find the value returned by a library function | |
| 624 assuming the value has mode MODE. */ | |
| 625 | |
| 626 #define LIBCALL_VALUE(MODE) \ | |
| 627 gen_rtx_REG (MODE, 10) | |
| 628 | |
| 629 /* 1 if N is a possible register number for a function value. */ | |
| 630 | |
| 631 #define FUNCTION_VALUE_REGNO_P(N) ((N) == 10) | |
| 632 | |
| 633 #define DEFAULT_PCC_STRUCT_RETURN 0 | |
| 634 | |
| 635 /* EXIT_IGNORE_STACK should be nonzero if, when returning from a function, | |
| 636 the stack pointer does not matter. The value is tested only in | |
| 637 functions that have frame pointers. | |
| 638 No definition is equivalent to always zero. */ | |
| 639 | |
| 640 #define EXIT_IGNORE_STACK 1 | |
| 641 | |
| 642 /* Define this macro as a C expression that is nonzero for registers | |
| 643 used by the epilogue or the `return' pattern. */ | |
| 644 | |
| 645 #define EPILOGUE_USES(REGNO) \ | |
| 646 (reload_completed && (REGNO) == LINK_POINTER_REGNUM) | |
| 647 | |
| 648 /* Output assembler code to FILE to increment profiler label # LABELNO | |
| 649 for profiling a function entry. */ | |
| 650 | |
| 651 #define FUNCTION_PROFILER(FILE, LABELNO) ; | |
| 652 | |
| 653 /* Length in units of the trampoline for entering a nested function. */ | |
| 654 | |
| 655 #define TRAMPOLINE_SIZE 24 | |
| 656 | |
| 657 /* Addressing modes, and classification of registers for them. */ | |
| 658 | |
| 659 | |
| 660 /* 1 if X is an rtx for a constant that is a valid address. */ | |
| 661 | |
| 662 /* ??? This seems too exclusive. May get better code by accepting more | |
| 663 possibilities here, in particular, should accept ZDA_NAME SYMBOL_REFs. */ | |
| 664 | |
| 665 #define CONSTANT_ADDRESS_P(X) \ | |
| 666 (GET_CODE (X) == CONST_INT \ | |
| 667 && CONST_OK_FOR_K (INTVAL (X))) | |
| 668 | |
| 669 /* Maximum number of registers that can appear in a valid memory address. */ | |
| 670 | |
| 671 #define MAX_REGS_PER_ADDRESS 1 | |
| 672 | |
| 673 /* The macros REG_OK_FOR..._P assume that the arg is a REG rtx | |
| 674 and check its validity for a certain class. | |
| 675 We have two alternate definitions for each of them. | |
| 676 The usual definition accepts all pseudo regs; the other rejects | |
| 677 them unless they have been allocated suitable hard regs. | |
| 678 The symbol REG_OK_STRICT causes the latter definition to be used. | |
| 679 | |
| 680 Most source files want to accept pseudo regs in the hope that | |
| 681 they will get allocated to the class that the insn wants them to be in. | |
| 682 Source files for reload pass need to be strict. | |
| 683 After reload, it makes no difference, since pseudo regs have | |
| 684 been eliminated by then. */ | |
| 685 | |
| 686 #ifndef REG_OK_STRICT | |
| 687 | |
| 688 /* Nonzero if X is a hard reg that can be used as an index | |
| 689 or if it is a pseudo reg. */ | |
| 690 #define REG_OK_FOR_INDEX_P(X) 0 | |
| 691 /* Nonzero if X is a hard reg that can be used as a base reg | |
| 692 or if it is a pseudo reg. */ | |
| 693 #define REG_OK_FOR_BASE_P(X) 1 | |
| 694 #define REG_OK_FOR_INDEX_P_STRICT(X) 0 | |
| 695 #define REG_OK_FOR_BASE_P_STRICT(X) REGNO_OK_FOR_BASE_P (REGNO (X)) | |
| 696 #define STRICT 0 | |
| 697 | |
| 698 #else | |
| 699 | |
| 700 /* Nonzero if X is a hard reg that can be used as an index. */ | |
| 701 #define REG_OK_FOR_INDEX_P(X) 0 | |
| 702 /* Nonzero if X is a hard reg that can be used as a base reg. */ | |
| 703 #define REG_OK_FOR_BASE_P(X) REGNO_OK_FOR_BASE_P (REGNO (X)) | |
| 704 #define STRICT 1 | |
| 705 | |
| 706 #endif | |
| 707 | |
| 708 /* A C expression that defines the optional machine-dependent | |
| 709 constraint letters that can be used to segregate specific types of | |
| 710 operands, usually memory references, for the target machine. | |
| 711 Normally this macro will not be defined. If it is required for a | |
| 712 particular target machine, it should return 1 if VALUE corresponds | |
| 713 to the operand type represented by the constraint letter C. If C | |
| 714 is not defined as an extra constraint, the value returned should | |
| 715 be 0 regardless of VALUE. | |
| 716 | |
| 717 For example, on the ROMP, load instructions cannot have their | |
| 718 output in r0 if the memory reference contains a symbolic address. | |
| 719 Constraint letter `Q' is defined as representing a memory address | |
| 720 that does *not* contain a symbolic address. An alternative is | |
| 721 specified with a `Q' constraint on the input and `r' on the | |
| 722 output. The next alternative specifies `m' on the input and a | |
| 723 register class that does not include r0 on the output. */ | |
| 724 | |
| 725 #define EXTRA_CONSTRAINT(OP, C) \ | |
| 726 ((C) == 'Q' ? ep_memory_operand (OP, GET_MODE (OP), FALSE) \ | |
| 727 : (C) == 'R' ? special_symbolref_operand (OP, VOIDmode) \ | |
| 728 : (C) == 'S' ? (GET_CODE (OP) == SYMBOL_REF \ | |
| 729 && !SYMBOL_REF_ZDA_P (OP)) \ | |
| 730 : (C) == 'T' ? ep_memory_operand (OP, GET_MODE (OP), TRUE) \ | |
| 731 : (C) == 'U' ? ((GET_CODE (OP) == SYMBOL_REF \ | |
| 732 && SYMBOL_REF_ZDA_P (OP)) \ | |
| 733 || (GET_CODE (OP) == CONST \ | |
| 734 && GET_CODE (XEXP (OP, 0)) == PLUS \ | |
| 735 && GET_CODE (XEXP (XEXP (OP, 0), 0)) == SYMBOL_REF \ | |
| 736 && SYMBOL_REF_ZDA_P (XEXP (XEXP (OP, 0), 0)))) \ | |
| 737 : 0) | |
| 738 | |
| 739 /* GO_IF_LEGITIMATE_ADDRESS recognizes an RTL expression | |
| 740 that is a valid memory address for an instruction. | |
| 741 The MODE argument is the machine mode for the MEM expression | |
| 742 that wants to use this address. | |
| 743 | |
| 744 The other macros defined here are used only in GO_IF_LEGITIMATE_ADDRESS, | |
| 745 except for CONSTANT_ADDRESS_P which is actually | |
| 746 machine-independent. */ | |
| 747 | |
| 748 /* Accept either REG or SUBREG where a register is valid. */ | |
| 749 | |
| 750 #define RTX_OK_FOR_BASE_P(X) \ | |
| 751 ((REG_P (X) && REG_OK_FOR_BASE_P (X)) \ | |
| 752 || (GET_CODE (X) == SUBREG && REG_P (SUBREG_REG (X)) \ | |
| 753 && REG_OK_FOR_BASE_P (SUBREG_REG (X)))) | |
| 754 | |
| 755 #define GO_IF_LEGITIMATE_ADDRESS(MODE, X, ADDR) \ | |
| 756 do { \ | |
| 757 if (RTX_OK_FOR_BASE_P (X)) \ | |
| 758 goto ADDR; \ | |
| 759 if (CONSTANT_ADDRESS_P (X) \ | |
| 760 && (MODE == QImode || INTVAL (X) % 2 == 0) \ | |
| 761 && (GET_MODE_SIZE (MODE) <= 4 || INTVAL (X) % 4 == 0)) \ | |
| 762 goto ADDR; \ | |
| 763 if (GET_CODE (X) == LO_SUM \ | |
| 764 && REG_P (XEXP (X, 0)) \ | |
| 765 && REG_OK_FOR_BASE_P (XEXP (X, 0)) \ | |
| 766 && CONSTANT_P (XEXP (X, 1)) \ | |
| 767 && (GET_CODE (XEXP (X, 1)) != CONST_INT \ | |
| 768 || ((MODE == QImode || INTVAL (XEXP (X, 1)) % 2 == 0) \ | |
| 769 && CONST_OK_FOR_K (INTVAL (XEXP (X, 1))))) \ | |
| 770 && GET_MODE_SIZE (MODE) <= GET_MODE_SIZE (word_mode)) \ | |
| 771 goto ADDR; \ | |
| 772 if (special_symbolref_operand (X, MODE) \ | |
| 773 && (GET_MODE_SIZE (MODE) <= GET_MODE_SIZE (word_mode))) \ | |
| 774 goto ADDR; \ | |
| 775 if (GET_CODE (X) == PLUS \ | |
| 776 && RTX_OK_FOR_BASE_P (XEXP (X, 0)) \ | |
| 777 && CONSTANT_ADDRESS_P (XEXP (X, 1)) \ | |
| 778 && ((MODE == QImode || INTVAL (XEXP (X, 1)) % 2 == 0) \ | |
| 779 && CONST_OK_FOR_K (INTVAL (XEXP (X, 1)) \ | |
| 780 + (GET_MODE_NUNITS (MODE) * UNITS_PER_WORD)))) \ | |
| 781 goto ADDR; \ | |
| 782 } while (0) | |
| 783 | |
| 784 | |
| 785 /* Nonzero if the constant value X is a legitimate general operand. | |
| 786 It is given that X satisfies CONSTANT_P or is a CONST_DOUBLE. */ | |
| 787 | |
| 788 #define LEGITIMATE_CONSTANT_P(X) \ | |
| 789 (GET_CODE (X) == CONST_DOUBLE \ | |
| 790 || !(GET_CODE (X) == CONST \ | |
| 791 && GET_CODE (XEXP (X, 0)) == PLUS \ | |
| 792 && GET_CODE (XEXP (XEXP (X, 0), 0)) == SYMBOL_REF \ | |
| 793 && GET_CODE (XEXP (XEXP (X, 0), 1)) == CONST_INT \ | |
| 794 && ! CONST_OK_FOR_K (INTVAL (XEXP (XEXP (X, 0), 1))))) | |
| 795 | |
| 796 /* Tell final.c how to eliminate redundant test instructions. */ | |
| 797 | |
| 798 /* Here we define machine-dependent flags and fields in cc_status | |
| 799 (see `conditions.h'). No extra ones are needed for the VAX. */ | |
| 800 | |
| 801 /* Store in cc_status the expressions | |
| 802 that the condition codes will describe | |
| 803 after execution of an instruction whose pattern is EXP. | |
| 804 Do not alter them if the instruction would not alter the cc's. */ | |
| 805 | |
| 806 #define CC_OVERFLOW_UNUSABLE 0x200 | |
| 807 #define CC_NO_CARRY CC_NO_OVERFLOW | |
| 808 #define NOTICE_UPDATE_CC(EXP, INSN) notice_update_cc(EXP, INSN) | |
| 809 | |
| 810 /* Nonzero if access to memory by bytes or half words is no faster | |
| 811 than accessing full words. */ | |
| 812 #define SLOW_BYTE_ACCESS 1 | |
| 813 | |
| 814 /* According expr.c, a value of around 6 should minimize code size, and | |
| 815 for the V850 series, that's our primary concern. */ | |
| 816 #define MOVE_RATIO(speed) 6 | |
| 817 | |
| 818 /* Indirect calls are expensive, never turn a direct call | |
| 819 into an indirect call. */ | |
| 820 #define NO_FUNCTION_CSE | |
| 821 | |
| 822 /* The four different data regions on the v850. */ | |
| 823 typedef enum | |
| 824 { | |
| 825 DATA_AREA_NORMAL, | |
| 826 DATA_AREA_SDA, | |
| 827 DATA_AREA_TDA, | |
| 828 DATA_AREA_ZDA | |
| 829 } v850_data_area; | |
| 830 | |
| 831 #define TEXT_SECTION_ASM_OP "\t.section .text" | |
| 832 #define DATA_SECTION_ASM_OP "\t.section .data" | |
| 833 #define BSS_SECTION_ASM_OP "\t.section .bss" | |
| 834 #define SDATA_SECTION_ASM_OP "\t.section .sdata,\"aw\"" | |
| 835 #define SBSS_SECTION_ASM_OP "\t.section .sbss,\"aw\"" | |
| 836 | |
| 837 #define SCOMMON_ASM_OP "\t.scomm\t" | |
| 838 #define ZCOMMON_ASM_OP "\t.zcomm\t" | |
| 839 #define TCOMMON_ASM_OP "\t.tcomm\t" | |
| 840 | |
| 841 #define ASM_COMMENT_START "#" | |
| 842 | |
| 843 /* Output to assembler file text saying following lines | |
| 844 may contain character constants, extra white space, comments, etc. */ | |
| 845 | |
| 846 #define ASM_APP_ON "#APP\n" | |
| 847 | |
| 848 /* Output to assembler file text saying following lines | |
| 849 no longer contain unusual constructs. */ | |
| 850 | |
| 851 #define ASM_APP_OFF "#NO_APP\n" | |
| 852 | |
| 853 #undef USER_LABEL_PREFIX | |
| 854 #define USER_LABEL_PREFIX "_" | |
| 855 | |
| 856 #define OUTPUT_ADDR_CONST_EXTRA(FILE, X, FAIL) \ | |
| 857 if (! v850_output_addr_const_extra (FILE, X)) \ | |
| 858 goto FAIL | |
| 859 | |
| 860 /* This says how to output the assembler to define a global | |
| 861 uninitialized but not common symbol. */ | |
| 862 | |
| 863 #define ASM_OUTPUT_ALIGNED_BSS(FILE, DECL, NAME, SIZE, ALIGN) \ | |
| 864 asm_output_aligned_bss ((FILE), (DECL), (NAME), (SIZE), (ALIGN)) | |
| 865 | |
| 866 #undef ASM_OUTPUT_ALIGNED_BSS | |
| 867 #define ASM_OUTPUT_ALIGNED_BSS(FILE, DECL, NAME, SIZE, ALIGN) \ | |
| 868 v850_output_aligned_bss (FILE, DECL, NAME, SIZE, ALIGN) | |
| 869 | |
| 870 /* This says how to output the assembler to define a global | |
| 871 uninitialized, common symbol. */ | |
| 872 #undef ASM_OUTPUT_ALIGNED_COMMON | |
| 873 #undef ASM_OUTPUT_COMMON | |
| 874 #define ASM_OUTPUT_ALIGNED_DECL_COMMON(FILE, DECL, NAME, SIZE, ALIGN) \ | |
| 875 v850_output_common (FILE, DECL, NAME, SIZE, ALIGN) | |
| 876 | |
| 877 /* This says how to output the assembler to define a local | |
| 878 uninitialized symbol. */ | |
| 879 #undef ASM_OUTPUT_ALIGNED_LOCAL | |
| 880 #undef ASM_OUTPUT_LOCAL | |
| 881 #define ASM_OUTPUT_ALIGNED_DECL_LOCAL(FILE, DECL, NAME, SIZE, ALIGN) \ | |
| 882 v850_output_local (FILE, DECL, NAME, SIZE, ALIGN) | |
| 883 | |
| 884 /* Globalizing directive for a label. */ | |
| 885 #define GLOBAL_ASM_OP "\t.global " | |
| 886 | |
| 887 #define ASM_PN_FORMAT "%s___%lu" | |
| 888 | |
| 889 /* This is how we tell the assembler that two symbols have the same value. */ | |
| 890 | |
| 891 #define ASM_OUTPUT_DEF(FILE,NAME1,NAME2) \ | |
| 892 do { assemble_name(FILE, NAME1); \ | |
| 893 fputs(" = ", FILE); \ | |
| 894 assemble_name(FILE, NAME2); \ | |
| 895 fputc('\n', FILE); } while (0) | |
| 896 | |
| 897 | |
| 898 /* How to refer to registers in assembler output. | |
| 899 This sequence is indexed by compiler's hard-register-number (see above). */ | |
| 900 | |
| 901 #define REGISTER_NAMES \ | |
| 902 { "r0", "r1", "r2", "sp", "gp", "r5", "r6" , "r7", \ | |
| 903 "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15", \ | |
| 904 "r16", "r17", "r18", "r19", "r20", "r21", "r22", "r23", \ | |
| 905 "r24", "r25", "r26", "r27", "r28", "r29", "ep", "r31", \ | |
| 906 ".fp", ".ap"} | |
| 907 | |
| 908 #define ADDITIONAL_REGISTER_NAMES \ | |
| 909 { { "zero", 0 }, \ | |
| 910 { "hp", 2 }, \ | |
| 911 { "r3", 3 }, \ | |
| 912 { "r4", 4 }, \ | |
| 913 { "tp", 5 }, \ | |
| 914 { "fp", 29 }, \ | |
| 915 { "r30", 30 }, \ | |
| 916 { "lp", 31} } | |
| 917 | |
| 918 /* Print an instruction operand X on file FILE. | |
| 919 look in v850.c for details */ | |
| 920 | |
| 921 #define PRINT_OPERAND(FILE, X, CODE) print_operand (FILE, X, CODE) | |
| 922 | |
| 923 #define PRINT_OPERAND_PUNCT_VALID_P(CODE) \ | |
| 924 ((CODE) == '.') | |
| 925 | |
| 926 /* Print a memory operand whose address is X, on file FILE. | |
| 927 This uses a function in output-vax.c. */ | |
| 928 | |
| 929 #define PRINT_OPERAND_ADDRESS(FILE, ADDR) print_operand_address (FILE, ADDR) | |
| 930 | |
| 931 #define ASM_OUTPUT_REG_PUSH(FILE,REGNO) | |
| 932 #define ASM_OUTPUT_REG_POP(FILE,REGNO) | |
| 933 | |
| 934 /* This is how to output an element of a case-vector that is absolute. */ | |
| 935 | |
| 936 #define ASM_OUTPUT_ADDR_VEC_ELT(FILE, VALUE) \ | |
| 937 fprintf (FILE, "\t%s .L%d\n", \ | |
| 938 (TARGET_BIG_SWITCH ? ".long" : ".short"), VALUE) | |
| 939 | |
| 940 /* This is how to output an element of a case-vector that is relative. */ | |
| 941 | |
| 942 /* Disable the shift, which is for the currently disabled "switch" | |
| 943 opcode. Se casesi in v850.md. */ | |
| 944 #define ASM_OUTPUT_ADDR_DIFF_ELT(FILE, BODY, VALUE, REL) \ | |
| 945 fprintf (FILE, "\t%s %s.L%d-.L%d%s\n", \ | |
| 946 (TARGET_BIG_SWITCH ? ".long" : ".short"), \ | |
| 947 (0 && ! TARGET_BIG_SWITCH && TARGET_V850E ? "(" : ""), \ | |
| 948 VALUE, REL, \ | |
| 949 (0 && ! TARGET_BIG_SWITCH && TARGET_V850E ? ")>>1" : "")) | |
| 950 | |
| 951 #define ASM_OUTPUT_ALIGN(FILE, LOG) \ | |
| 952 if ((LOG) != 0) \ | |
| 953 fprintf (FILE, "\t.align %d\n", (LOG)) | |
| 954 | |
| 955 /* We don't have to worry about dbx compatibility for the v850. */ | |
| 956 #define DEFAULT_GDB_EXTENSIONS 1 | |
| 957 | |
| 958 /* Use stabs debugging info by default. */ | |
| 959 #undef PREFERRED_DEBUGGING_TYPE | |
| 960 #define PREFERRED_DEBUGGING_TYPE DBX_DEBUG | |
| 961 | |
| 962 /* Specify the machine mode that this machine uses | |
| 963 for the index in the tablejump instruction. */ | |
| 964 #define CASE_VECTOR_MODE (TARGET_BIG_SWITCH ? SImode : HImode) | |
| 965 | |
| 966 /* Define as C expression which evaluates to nonzero if the tablejump | |
| 967 instruction expects the table to contain offsets from the address of the | |
| 968 table. | |
| 969 Do not define this if the table should contain absolute addresses. */ | |
| 970 #define CASE_VECTOR_PC_RELATIVE 1 | |
| 971 | |
| 972 /* The switch instruction requires that the jump table immediately follow | |
| 973 it. */ | |
| 974 #define JUMP_TABLES_IN_TEXT_SECTION 1 | |
| 975 | |
| 976 /* svr4.h defines this assuming that 4 byte alignment is required. */ | |
| 977 #undef ASM_OUTPUT_BEFORE_CASE_LABEL | |
| 978 #define ASM_OUTPUT_BEFORE_CASE_LABEL(FILE,PREFIX,NUM,TABLE) \ | |
| 979 ASM_OUTPUT_ALIGN ((FILE), (TARGET_BIG_SWITCH ? 2 : 1)); | |
| 980 | |
| 981 #define WORD_REGISTER_OPERATIONS | |
| 982 | |
| 983 /* Byte and short loads sign extend the value to a word. */ | |
| 984 #define LOAD_EXTEND_OP(MODE) SIGN_EXTEND | |
| 985 | |
| 986 /* This flag, if defined, says the same insns that convert to a signed fixnum | |
| 987 also convert validly to an unsigned one. */ | |
| 988 #define FIXUNS_TRUNC_LIKE_FIX_TRUNC | |
| 989 | |
| 990 /* Max number of bytes we can move from memory to memory | |
| 991 in one reasonably fast instruction. */ | |
| 992 #define MOVE_MAX 4 | |
| 993 | |
| 994 /* Define if shifts truncate the shift count | |
| 995 which implies one can omit a sign-extension or zero-extension | |
| 996 of a shift count. */ | |
| 997 #define SHIFT_COUNT_TRUNCATED 1 | |
| 998 | |
| 999 /* Value is 1 if truncating an integer of INPREC bits to OUTPREC bits | |
| 1000 is done just by pretending it is already truncated. */ | |
| 1001 #define TRULY_NOOP_TRUNCATION(OUTPREC, INPREC) 1 | |
| 1002 | |
| 1003 /* Specify the machine mode that pointers have. | |
| 1004 After generation of rtl, the compiler makes no further distinction | |
| 1005 between pointers and any other objects of this machine mode. */ | |
| 1006 #define Pmode SImode | |
| 1007 | |
| 1008 /* A function address in a call instruction | |
| 1009 is a byte address (for indexing purposes) | |
| 1010 so give the MEM rtx a byte's mode. */ | |
| 1011 #define FUNCTION_MODE QImode | |
| 1012 | |
| 1013 /* Tell compiler we want to support GHS pragmas */ | |
| 1014 #define REGISTER_TARGET_PRAGMAS() do { \ | |
| 1015 c_register_pragma ("ghs", "interrupt", ghs_pragma_interrupt); \ | |
| 1016 c_register_pragma ("ghs", "section", ghs_pragma_section); \ | |
| 1017 c_register_pragma ("ghs", "starttda", ghs_pragma_starttda); \ | |
| 1018 c_register_pragma ("ghs", "startsda", ghs_pragma_startsda); \ | |
| 1019 c_register_pragma ("ghs", "startzda", ghs_pragma_startzda); \ | |
| 1020 c_register_pragma ("ghs", "endtda", ghs_pragma_endtda); \ | |
| 1021 c_register_pragma ("ghs", "endsda", ghs_pragma_endsda); \ | |
| 1022 c_register_pragma ("ghs", "endzda", ghs_pragma_endzda); \ | |
| 1023 } while (0) | |
| 1024 | |
| 1025 /* enum GHS_SECTION_KIND is an enumeration of the kinds of sections that | |
| 1026 can appear in the "ghs section" pragma. These names are used to index | |
| 1027 into the GHS_default_section_names[] and GHS_current_section_names[] | |
| 1028 that are defined in v850.c, and so the ordering of each must remain | |
| 1029 consistent. | |
| 1030 | |
| 1031 These arrays give the default and current names for each kind of | |
| 1032 section defined by the GHS pragmas. The current names can be changed | |
| 1033 by the "ghs section" pragma. If the current names are null, use | |
| 1034 the default names. Note that the two arrays have different types. | |
| 1035 | |
| 1036 For the *normal* section kinds (like .data, .text, etc.) we do not | |
| 1037 want to explicitly force the name of these sections, but would rather | |
| 1038 let the linker (or at least the back end) choose the name of the | |
| 1039 section, UNLESS the user has force a specific name for these section | |
| 1040 kinds. To accomplish this set the name in ghs_default_section_names | |
| 1041 to null. */ | |
| 1042 | |
| 1043 enum GHS_section_kind | |
| 1044 { | |
| 1045 GHS_SECTION_KIND_DEFAULT, | |
| 1046 | |
| 1047 GHS_SECTION_KIND_TEXT, | |
| 1048 GHS_SECTION_KIND_DATA, | |
| 1049 GHS_SECTION_KIND_RODATA, | |
| 1050 GHS_SECTION_KIND_BSS, | |
| 1051 GHS_SECTION_KIND_SDATA, | |
| 1052 GHS_SECTION_KIND_ROSDATA, | |
| 1053 GHS_SECTION_KIND_TDATA, | |
| 1054 GHS_SECTION_KIND_ZDATA, | |
| 1055 GHS_SECTION_KIND_ROZDATA, | |
| 1056 | |
| 1057 COUNT_OF_GHS_SECTION_KINDS /* must be last */ | |
| 1058 }; | |
| 1059 | |
| 1060 /* The following code is for handling pragmas supported by the | |
| 1061 v850 compiler produced by Green Hills Software. This is at | |
| 1062 the specific request of a customer. */ | |
| 1063 | |
| 1064 typedef struct data_area_stack_element | |
| 1065 { | |
| 1066 struct data_area_stack_element * prev; | |
| 1067 v850_data_area data_area; /* Current default data area. */ | |
| 1068 } data_area_stack_element; | |
| 1069 | |
| 1070 /* Track the current data area set by the | |
| 1071 data area pragma (which can be nested). */ | |
| 1072 extern data_area_stack_element * data_area_stack; | |
| 1073 | |
| 1074 /* Names of the various data areas used on the v850. */ | |
| 1075 extern union tree_node * GHS_default_section_names [(int) COUNT_OF_GHS_SECTION_KINDS]; | |
| 1076 extern union tree_node * GHS_current_section_names [(int) COUNT_OF_GHS_SECTION_KINDS]; | |
| 1077 | |
| 1078 /* The assembler op to start the file. */ | |
| 1079 | |
| 1080 #define FILE_ASM_OP "\t.file\n" | |
| 1081 | |
| 1082 /* Enable the register move pass to improve code. */ | |
| 1083 #define ENABLE_REGMOVE_PASS | |
| 1084 | |
| 1085 | |
| 1086 /* Implement ZDA, TDA, and SDA */ | |
| 1087 | |
| 1088 #define EP_REGNUM 30 /* ep register number */ | |
| 1089 | |
| 1090 #define SYMBOL_FLAG_ZDA (SYMBOL_FLAG_MACH_DEP << 0) | |
| 1091 #define SYMBOL_FLAG_TDA (SYMBOL_FLAG_MACH_DEP << 1) | |
| 1092 #define SYMBOL_FLAG_SDA (SYMBOL_FLAG_MACH_DEP << 2) | |
| 1093 #define SYMBOL_REF_ZDA_P(X) ((SYMBOL_REF_FLAGS (X) & SYMBOL_FLAG_ZDA) != 0) | |
| 1094 #define SYMBOL_REF_TDA_P(X) ((SYMBOL_REF_FLAGS (X) & SYMBOL_FLAG_TDA) != 0) | |
| 1095 #define SYMBOL_REF_SDA_P(X) ((SYMBOL_REF_FLAGS (X) & SYMBOL_FLAG_SDA) != 0) | |
| 1096 | |
| 1097 #define TARGET_ASM_INIT_SECTIONS v850_asm_init_sections | |
| 1098 | |
| 1099 #endif /* ! GCC_V850_H */ |