Mercurial > hg > CbC > CbC_gcc
annotate gcc/config/v850/v850.h @ 131:84e7813d76e9
gcc-8.2
| author | mir3636 |
|---|---|
| date | Thu, 25 Oct 2018 07:37:49 +0900 |
| parents | 04ced10e8804 |
| children | 1830386684a0 |
| rev | line source |
|---|---|
| 0 | 1 /* Definitions of target machine for GNU compiler. NEC V850 series |
| 131 | 2 Copyright (C) 1996-2018 Free Software Foundation, Inc. |
| 0 | 3 Contributed by Jeff Law (law@cygnus.com). |
| 4 | |
| 5 This file is part of GCC. | |
| 6 | |
| 7 GCC is free software; you can redistribute it and/or modify | |
| 8 it under the terms of the GNU General Public License as published by | |
| 9 the Free Software Foundation; either version 3, or (at your option) | |
| 10 any later version. | |
| 11 | |
| 12 GCC is distributed in the hope that it will be useful, | |
| 13 but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 15 GNU General Public License for more details. | |
| 16 | |
| 111 | 17 Under Section 7 of GPL version 3, you are granted additional |
| 18 permissions described in the GCC Runtime Library Exception, version | |
| 19 3.1, as published by the Free Software Foundation. | |
| 20 | |
| 21 You should have received a copy of the GNU General Public License and | |
| 22 a copy of the GCC Runtime Library Exception along with this program; | |
| 23 see the files COPYING3 and COPYING.RUNTIME respectively. If not, see | |
| 0 | 24 <http://www.gnu.org/licenses/>. */ |
| 25 | |
| 26 #ifndef GCC_V850_H | |
| 27 #define GCC_V850_H | |
| 28 | |
| 29 #undef LIB_SPEC | |
|
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30 #define LIB_SPEC "%{!shared:%{!symbolic:--start-group -lc -lgcc --end-group}}" |
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31 |
| 0 | 32 #undef ENDFILE_SPEC |
| 33 #undef LINK_SPEC | |
| 34 #undef STARTFILE_SPEC | |
| 35 #undef ASM_SPEC | |
| 36 | |
| 37 #define TARGET_CPU_generic 1 | |
| 38 #define TARGET_CPU_v850e 2 | |
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39 #define TARGET_CPU_v850e1 3 |
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40 #define TARGET_CPU_v850e2 4 |
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41 #define TARGET_CPU_v850e2v3 5 |
| 111 | 42 #define TARGET_CPU_v850e3v5 6 |
| 0 | 43 |
| 44 #ifndef TARGET_CPU_DEFAULT | |
| 45 #define TARGET_CPU_DEFAULT TARGET_CPU_generic | |
| 46 #endif | |
| 47 | |
| 48 #define MASK_DEFAULT MASK_V850 | |
| 49 #define SUBTARGET_ASM_SPEC "%{!mv*:-mv850}" | |
| 50 #define SUBTARGET_CPP_SPEC "%{!mv*:-D__v850__}" | |
| 51 | |
| 52 /* Choose which processor will be the default. | |
| 53 We must pass a -mv850xx option to the assembler if no explicit -mv* option | |
| 54 is given, because the assembler's processor default may not be correct. */ | |
| 55 #if TARGET_CPU_DEFAULT == TARGET_CPU_v850e | |
| 56 #undef MASK_DEFAULT | |
| 57 #define MASK_DEFAULT MASK_V850E | |
| 58 #undef SUBTARGET_ASM_SPEC | |
| 59 #define SUBTARGET_ASM_SPEC "%{!mv*:-mv850e}" | |
| 60 #undef SUBTARGET_CPP_SPEC | |
| 61 #define SUBTARGET_CPP_SPEC "%{!mv*:-D__v850e__}" | |
| 62 #endif | |
| 63 | |
| 64 #if TARGET_CPU_DEFAULT == TARGET_CPU_v850e1 | |
| 65 #undef MASK_DEFAULT | |
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66 #define MASK_DEFAULT MASK_V850E /* No practical difference. */ |
| 0 | 67 #undef SUBTARGET_ASM_SPEC |
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68 #define SUBTARGET_ASM_SPEC "%{!mv*:-mv850e1}" |
| 0 | 69 #undef SUBTARGET_CPP_SPEC |
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70 #define SUBTARGET_CPP_SPEC "%{!mv*:-D__v850e1__} %{mv850e1:-D__v850e1__}" |
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71 #endif |
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72 |
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73 #if TARGET_CPU_DEFAULT == TARGET_CPU_v850e2 |
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74 #undef MASK_DEFAULT |
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75 #define MASK_DEFAULT MASK_V850E2 |
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76 #undef SUBTARGET_ASM_SPEC |
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77 #define SUBTARGET_ASM_SPEC "%{!mv*:-mv850e2}" |
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78 #undef SUBTARGET_CPP_SPEC |
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79 #define SUBTARGET_CPP_SPEC "%{!mv*:-D__v850e2__} %{mv850e2:-D__v850e2__}" |
| 0 | 80 #endif |
| 81 | |
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82 #if TARGET_CPU_DEFAULT == TARGET_CPU_v850e2v3 |
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83 #undef MASK_DEFAULT |
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84 #define MASK_DEFAULT MASK_V850E2V3 |
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85 #undef SUBTARGET_ASM_SPEC |
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86 #define SUBTARGET_ASM_SPEC "%{!mv*:-mv850e2v3}" |
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87 #undef SUBTARGET_CPP_SPEC |
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88 #define SUBTARGET_CPP_SPEC "%{!mv*:-D__v850e2v3__} %{mv850e2v3:-D__v850e2v3__}" |
| 111 | 89 #endif |
| 90 | |
| 91 #if TARGET_CPU_DEFAULT == TARGET_CPU_v850e3v5 | |
| 92 #undef MASK_DEFAULT | |
| 93 #define MASK_DEFAULT MASK_V850E3V5 | |
| 94 #undef SUBTARGET_ASM_SPEC | |
| 95 #define SUBTARGET_ASM_SPEC "%{!mv*:-mv850e3v5}" | |
| 96 #undef SUBTARGET_CPP_SPEC | |
| 97 #define SUBTARGET_CPP_SPEC "%{!mv*:-D__v850e3v5__} %{mv850e3v5:-D__v850e3v5__}" | |
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98 #undef TARGET_VERSION |
| 111 | 99 #define TARGET_VERSION fprintf (stderr, " (Renesas V850E3V5)"); |
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100 #endif |
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101 |
| 111 | 102 #define TARGET_V850E3V5_UP ((TARGET_V850E3V5)) |
| 103 #define TARGET_V850E2V3_UP ((TARGET_V850E2V3) || TARGET_V850E3V5_UP) | |
| 104 #define TARGET_V850E2_UP ((TARGET_V850E2) || TARGET_V850E2V3_UP) | |
| 105 #define TARGET_V850E_UP ((TARGET_V850E) || TARGET_V850E2_UP) | |
| 106 #define TARGET_ALL ((TARGET_V850) || TARGET_V850E_UP) | |
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107 |
| 111 | 108 #define ASM_SPEC "%{m850es:-mv850e1}%{!mv850es:%{mv*:-mv%*}} \ |
| 109 %{mrelax:-mrelax} \ | |
| 110 %{m8byte-align:-m8byte-align} \ | |
| 111 %{msoft-float:-msoft-float} \ | |
| 112 %{mhard-float:-mhard-float} \ | |
| 113 %{mgcc-abi:-mgcc-abi}" | |
| 114 | |
| 115 #define LINK_SPEC "%{mgcc-abi:-m v850}" | |
| 116 | |
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117 #define CPP_SPEC "\ |
| 111 | 118 %{mv850e3v5:-D__v850e3v5__} \ |
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119 %{mv850e2v3:-D__v850e2v3__} \ |
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120 %{mv850e2:-D__v850e2__} \ |
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121 %{mv850es:-D__v850e1__} \ |
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122 %{mv850e1:-D__v850e1__} \ |
| 111 | 123 %{mv850e:-D__v850e__} \ |
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124 %{mv850:-D__v850__} \ |
| 111 | 125 %(subtarget_cpp_spec) \ |
| 126 %{mep:-D__EP__}" | |
| 0 | 127 |
| 128 #define EXTRA_SPECS \ | |
| 129 { "subtarget_asm_spec", SUBTARGET_ASM_SPEC }, \ | |
| 130 { "subtarget_cpp_spec", SUBTARGET_CPP_SPEC } | |
| 131 | |
| 132 | |
| 111 | 133 /* Macro to decide when FPU instructions can be used. */ |
| 134 #define TARGET_USE_FPU (TARGET_V850E2V3_UP && ! TARGET_SOFT_FLOAT) | |
| 0 | 135 |
| 111 | 136 #define TARGET_CPU_CPP_BUILTINS() \ |
| 137 do \ | |
| 138 { \ | |
| 139 builtin_define( "__v851__" ); \ | |
| 140 builtin_define( "__v850" ); \ | |
| 141 builtin_define( "__v850__" ); \ | |
| 142 builtin_assert( "machine=v850" ); \ | |
| 143 builtin_assert( "cpu=v850" ); \ | |
| 144 if (TARGET_EP) \ | |
| 145 builtin_define ("__EP__"); \ | |
| 146 if (TARGET_GCC_ABI) \ | |
| 147 builtin_define ("__V850_GCC_ABI__"); \ | |
| 148 else \ | |
| 149 builtin_define ("__V850_RH850_ABI__"); \ | |
| 150 if (! TARGET_DISABLE_CALLT) \ | |
| 151 builtin_define ("__V850_CALLT__"); \ | |
| 152 if (TARGET_8BYTE_ALIGN) \ | |
| 153 builtin_define ("__V850_8BYTE_ALIGN__");\ | |
| 154 builtin_define (TARGET_USE_FPU ? \ | |
| 155 "__FPU_OK__" : "__NO_FPU__");\ | |
| 156 } \ | |
| 157 while(0) | |
| 0 | 158 |
| 111 | 159 #define MASK_CPU (MASK_V850 | MASK_V850E | MASK_V850E1 | MASK_V850E2 | MASK_V850E2V3 | MASK_V850E3V5) |
| 0 | 160 |
| 161 /* Target machine storage layout */ | |
| 162 | |
| 163 /* Define this if most significant bit is lowest numbered | |
| 164 in instructions that operate on numbered bit-fields. | |
| 165 This is not true on the NEC V850. */ | |
| 166 #define BITS_BIG_ENDIAN 0 | |
| 167 | |
| 168 /* Define this if most significant byte of a word is the lowest numbered. */ | |
| 169 /* This is not true on the NEC V850. */ | |
| 170 #define BYTES_BIG_ENDIAN 0 | |
| 171 | |
| 172 /* Define this if most significant word of a multiword number is lowest | |
| 173 numbered. | |
| 174 This is not true on the NEC V850. */ | |
| 175 #define WORDS_BIG_ENDIAN 0 | |
| 176 | |
| 177 /* Width of a word, in units (bytes). */ | |
| 178 #define UNITS_PER_WORD 4 | |
| 179 | |
| 180 /* Define this macro if it is advisable to hold scalars in registers | |
| 181 in a wider mode than that declared by the program. In such cases, | |
| 182 the value is constrained to be within the bounds of the declared | |
| 183 type, but kept valid in the wider mode. The signedness of the | |
| 184 extension may differ from that of the type. | |
| 185 | |
| 186 Some simple experiments have shown that leaving UNSIGNEDP alone | |
| 187 generates the best overall code. */ | |
| 188 | |
| 189 #define PROMOTE_MODE(MODE,UNSIGNEDP,TYPE) \ | |
| 190 if (GET_MODE_CLASS (MODE) == MODE_INT \ | |
| 191 && GET_MODE_SIZE (MODE) < 4) \ | |
| 192 { (MODE) = SImode; } | |
| 193 | |
| 194 /* Allocation boundary (in *bits*) for storing arguments in argument list. */ | |
| 195 #define PARM_BOUNDARY 32 | |
| 196 | |
| 197 /* The stack goes in 32-bit lumps. */ | |
| 111 | 198 #define STACK_BOUNDARY BIGGEST_ALIGNMENT |
| 0 | 199 |
| 200 /* Allocation boundary (in *bits*) for the code of a function. | |
| 201 16 is the minimum boundary; 32 would give better performance. */ | |
| 111 | 202 #define FUNCTION_BOUNDARY (((! TARGET_GCC_ABI) || optimize_size) ? 16 : 32) |
| 0 | 203 |
| 204 /* No data type wants to be aligned rounder than this. */ | |
| 111 | 205 #define BIGGEST_ALIGNMENT (TARGET_8BYTE_ALIGN ? 64 : 32) |
| 0 | 206 |
| 207 /* Alignment of field after `int : 0' in a structure. */ | |
| 208 #define EMPTY_FIELD_BOUNDARY 32 | |
| 209 | |
| 210 /* No structure field wants to be aligned rounder than this. */ | |
| 111 | 211 #define BIGGEST_FIELD_ALIGNMENT BIGGEST_ALIGNMENT |
| 0 | 212 |
| 213 /* Define this if move instructions will actually fail to work | |
| 214 when given unaligned data. */ | |
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215 #define STRICT_ALIGNMENT (!TARGET_NO_STRICT_ALIGN) |
| 0 | 216 |
| 217 /* Define this as 1 if `char' should by default be signed; else as 0. | |
| 218 | |
| 219 On the NEC V850, loads do sign extension, so make this default. */ | |
| 220 #define DEFAULT_SIGNED_CHAR 1 | |
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221 |
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222 #undef SIZE_TYPE |
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223 #define SIZE_TYPE "unsigned int" |
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224 |
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225 #undef PTRDIFF_TYPE |
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226 #define PTRDIFF_TYPE "int" |
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227 |
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228 #undef WCHAR_TYPE |
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229 #define WCHAR_TYPE "long int" |
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230 |
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231 #undef WCHAR_TYPE_SIZE |
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232 #define WCHAR_TYPE_SIZE BITS_PER_WORD |
| 0 | 233 |
| 234 /* Standard register usage. */ | |
| 235 | |
| 236 /* Number of actual hardware registers. | |
| 237 The hardware registers are assigned numbers for the compiler | |
| 238 from 0 to just below FIRST_PSEUDO_REGISTER. | |
| 239 | |
| 240 All registers that the compiler knows about must be given numbers, | |
| 241 even those that are not normally considered general registers. */ | |
| 242 | |
|
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243 #define FIRST_PSEUDO_REGISTER 36 |
| 0 | 244 |
| 245 /* 1 for registers that have pervasive standard uses | |
| 246 and are not available for the register allocator. */ | |
| 247 | |
| 248 #define FIXED_REGISTERS \ | |
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249 { 1, 1, 1, 1, 1, 1, 0, 0, \ |
| 0 | 250 0, 0, 0, 0, 0, 0, 0, 0, \ |
| 251 0, 0, 0, 0, 0, 0, 0, 0, \ | |
| 252 0, 0, 0, 0, 0, 0, 1, 0, \ | |
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253 1, 1, \ |
| 0 | 254 1, 1} |
| 255 | |
| 256 /* 1 for registers not available across function calls. | |
| 257 These must include the FIXED_REGISTERS and also any | |
| 258 registers that can be used without being saved. | |
| 259 The latter must include the registers where values are returned | |
| 260 and the register where structure-value addresses are passed. | |
| 261 Aside from that, you can include as many other registers as you | |
| 262 like. */ | |
| 263 | |
| 264 #define CALL_USED_REGISTERS \ | |
|
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265 { 1, 1, 1, 1, 1, 1, 1, 1, \ |
| 0 | 266 1, 1, 1, 1, 1, 1, 1, 1, \ |
| 267 1, 1, 1, 1, 0, 0, 0, 0, \ | |
| 268 0, 0, 0, 0, 0, 0, 1, 1, \ | |
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269 1, 1, \ |
| 0 | 270 1, 1} |
| 271 | |
| 272 /* List the order in which to allocate registers. Each register must be | |
| 273 listed once, even those in FIXED_REGISTERS. | |
| 274 | |
| 275 On the 850, we make the return registers first, then all of the volatile | |
| 276 registers, then the saved registers in reverse order to better save the | |
| 277 registers with an out of line function, and finally the fixed | |
| 278 registers. */ | |
| 279 | |
| 280 #define REG_ALLOC_ORDER \ | |
| 281 { \ | |
| 282 10, 11, /* return registers */ \ | |
| 283 12, 13, 14, 15, 16, 17, 18, 19, /* scratch registers */ \ | |
| 284 6, 7, 8, 9, 31, /* argument registers */ \ | |
| 285 29, 28, 27, 26, 25, 24, 23, 22, /* saved registers */ \ | |
| 286 21, 20, 2, \ | |
|
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287 0, 1, 3, 4, 5, 30, 32, 33, /* fixed registers */ \ |
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288 34, 35 \ |
| 0 | 289 } |
| 290 | |
| 291 | |
| 292 /* Define the classes of registers for register constraints in the | |
| 293 machine description. Also define ranges of constants. | |
| 294 | |
| 295 One of the classes must always be named ALL_REGS and include all hard regs. | |
| 296 If there is more than one class, another class must be named NO_REGS | |
| 297 and contain no registers. | |
| 298 | |
| 299 The name GENERAL_REGS must be the name of a class (or an alias for | |
| 300 another name such as ALL_REGS). This is the class of registers | |
| 301 that is allowed by "g" or "r" in a register constraint. | |
| 302 Also, registers outside this class are allocated only when | |
| 303 instructions express preferences for them. | |
| 304 | |
| 305 The classes must be numbered in nondecreasing order; that is, | |
| 306 a larger-numbered class must never be contained completely | |
| 307 in a smaller-numbered class. | |
| 308 | |
| 309 For any two classes, it is very desirable that there be another | |
| 310 class that represents their union. */ | |
| 311 | |
| 312 enum reg_class | |
| 313 { | |
| 111 | 314 NO_REGS, EVEN_REGS, GENERAL_REGS, ALL_REGS, LIM_REG_CLASSES |
| 0 | 315 }; |
| 316 | |
| 317 #define N_REG_CLASSES (int) LIM_REG_CLASSES | |
| 318 | |
| 319 /* Give names of register classes as strings for dump file. */ | |
| 320 | |
| 321 #define REG_CLASS_NAMES \ | |
| 111 | 322 { "NO_REGS", "EVEN_REGS", "GENERAL_REGS", "ALL_REGS", "LIM_REGS" } |
| 0 | 323 |
| 324 /* Define which registers fit in which classes. | |
| 325 This is an initializer for a vector of HARD_REG_SET | |
| 326 of length N_REG_CLASSES. */ | |
| 327 | |
|
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328 #define REG_CLASS_CONTENTS \ |
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329 { \ |
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330 { 0x00000000,0x0 }, /* NO_REGS */ \ |
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331 { 0x55555554,0x0 }, /* EVEN_REGS */ \ |
| 111 | 332 { 0xfffffffe,0x0 }, /* GENERAL_REGS */ \ |
|
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333 { 0xffffffff,0x0 }, /* ALL_REGS */ \ |
| 0 | 334 } |
| 335 | |
| 336 /* The same information, inverted: | |
| 337 Return the class number of the smallest class containing | |
| 338 reg number REGNO. This could be a conditional expression | |
| 339 or could index an array. */ | |
| 340 | |
|
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341 #define REGNO_REG_CLASS(REGNO) ((REGNO == CC_REGNUM || REGNO == FCC_REGNUM) ? NO_REGS : GENERAL_REGS) |
| 0 | 342 |
| 343 /* The class value for index registers, and the one for base regs. */ | |
| 344 | |
| 345 #define INDEX_REG_CLASS NO_REGS | |
| 346 #define BASE_REG_CLASS GENERAL_REGS | |
| 347 | |
| 348 /* Macros to check register numbers against specific register classes. */ | |
| 349 | |
| 350 /* These assume that REGNO is a hard or pseudo reg number. | |
| 351 They give nonzero only if REGNO is a hard reg of the suitable class | |
| 352 or a pseudo reg currently allocated to a suitable hard reg. | |
| 353 Since they use reg_renumber, they are safe only once reg_renumber | |
| 111 | 354 has been allocated, which happens in reginfo.c during register |
| 355 allocation. */ | |
| 0 | 356 |
|
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357 #define REGNO_OK_FOR_BASE_P(regno) \ |
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358 (((regno) < FIRST_PSEUDO_REGISTER \ |
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359 && (regno) != CC_REGNUM \ |
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360 && (regno) != FCC_REGNUM) \ |
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361 || reg_renumber[regno] >= 0) |
| 0 | 362 |
| 363 #define REGNO_OK_FOR_INDEX_P(regno) 0 | |
| 364 | |
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365 /* Convenience wrappers around insn_const_int_ok_for_constraint. */ |
| 0 | 366 |
|
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367 #define CONST_OK_FOR_I(VALUE) \ |
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368 insn_const_int_ok_for_constraint (VALUE, CONSTRAINT_I) |
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369 #define CONST_OK_FOR_J(VALUE) \ |
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370 insn_const_int_ok_for_constraint (VALUE, CONSTRAINT_J) |
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371 #define CONST_OK_FOR_K(VALUE) \ |
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372 insn_const_int_ok_for_constraint (VALUE, CONSTRAINT_K) |
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373 #define CONST_OK_FOR_L(VALUE) \ |
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374 insn_const_int_ok_for_constraint (VALUE, CONSTRAINT_L) |
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375 #define CONST_OK_FOR_M(VALUE) \ |
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376 insn_const_int_ok_for_constraint (VALUE, CONSTRAINT_M) |
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377 #define CONST_OK_FOR_N(VALUE) \ |
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378 insn_const_int_ok_for_constraint (VALUE, CONSTRAINT_N) |
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379 #define CONST_OK_FOR_O(VALUE) \ |
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380 insn_const_int_ok_for_constraint (VALUE, CONSTRAINT_O) |
| 111 | 381 #define CONST_OK_FOR_W(VALUE) \ |
| 382 insn_const_int_ok_for_constraint (VALUE, CONSTRAINT_W) | |
| 0 | 383 |
| 384 /* Stack layout; function entry, exit and calling. */ | |
| 385 | |
| 386 /* Define this if pushing a word on the stack | |
| 387 makes the stack pointer a smaller address. */ | |
| 388 | |
| 111 | 389 #define STACK_GROWS_DOWNWARD 1 |
| 0 | 390 |
| 391 /* Define this to nonzero if the nominal address of the stack frame | |
| 392 is at the high-address end of the local variables; | |
| 393 that is, each additional local variable allocated | |
| 394 goes at a more negative offset in the frame. */ | |
| 395 | |
| 396 #define FRAME_GROWS_DOWNWARD 1 | |
| 397 | |
| 398 /* Offset of first parameter from the argument pointer register value. */ | |
| 399 /* Is equal to the size of the saved fp + pc, even if an fp isn't | |
| 400 saved since the value is used before we know. */ | |
| 401 | |
| 402 #define FIRST_PARM_OFFSET(FNDECL) 0 | |
| 403 | |
| 404 /* Specify the registers used for certain standard purposes. | |
| 405 The values of these macros are register numbers. */ | |
| 406 | |
| 407 /* Register to use for pushing function arguments. */ | |
|
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408 #define STACK_POINTER_REGNUM SP_REGNUM |
| 0 | 409 |
| 410 /* Base register for access to local variables of the function. */ | |
|
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411 #define FRAME_POINTER_REGNUM 34 |
| 0 | 412 |
| 413 /* Register containing return address from latest function call. */ | |
|
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414 #define LINK_POINTER_REGNUM LP_REGNUM |
| 0 | 415 |
| 416 /* On some machines the offset between the frame pointer and starting | |
| 417 offset of the automatic variables is not known until after register | |
| 418 allocation has been done (for example, because the saved registers | |
| 419 are between these two locations). On those machines, define | |
| 420 `FRAME_POINTER_REGNUM' the number of a special, fixed register to | |
| 421 be used internally until the offset is known, and define | |
| 422 `HARD_FRAME_POINTER_REGNUM' to be actual the hard register number | |
| 423 used for the frame pointer. | |
| 424 | |
| 425 You should define this macro only in the very rare circumstances | |
| 426 when it is not possible to calculate the offset between the frame | |
| 427 pointer and the automatic variables until after register | |
| 428 allocation has been completed. When this macro is defined, you | |
| 429 must also indicate in your definition of `ELIMINABLE_REGS' how to | |
| 430 eliminate `FRAME_POINTER_REGNUM' into either | |
| 431 `HARD_FRAME_POINTER_REGNUM' or `STACK_POINTER_REGNUM'. | |
| 432 | |
| 433 Do not define this macro if it would be the same as | |
| 434 `FRAME_POINTER_REGNUM'. */ | |
| 435 #undef HARD_FRAME_POINTER_REGNUM | |
| 436 #define HARD_FRAME_POINTER_REGNUM 29 | |
| 437 | |
| 438 /* Base register for access to arguments of the function. */ | |
|
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439 #define ARG_POINTER_REGNUM 35 |
| 0 | 440 |
| 441 /* Register in which static-chain is passed to a function. */ | |
| 442 #define STATIC_CHAIN_REGNUM 20 | |
| 443 | |
| 444 /* If defined, this macro specifies a table of register pairs used to | |
| 445 eliminate unneeded registers that point into the stack frame. If | |
| 446 it is not defined, the only elimination attempted by the compiler | |
| 447 is to replace references to the frame pointer with references to | |
| 448 the stack pointer. | |
| 449 | |
| 450 The definition of this macro is a list of structure | |
| 451 initializations, each of which specifies an original and | |
| 452 replacement register. | |
| 453 | |
| 454 On some machines, the position of the argument pointer is not | |
| 455 known until the compilation is completed. In such a case, a | |
| 456 separate hard register must be used for the argument pointer. | |
| 457 This register can be eliminated by replacing it with either the | |
| 458 frame pointer or the argument pointer, depending on whether or not | |
| 459 the frame pointer has been eliminated. | |
| 460 | |
| 461 In this case, you might specify: | |
| 462 #define ELIMINABLE_REGS \ | |
| 463 {{ARG_POINTER_REGNUM, STACK_POINTER_REGNUM}, \ | |
| 464 {ARG_POINTER_REGNUM, FRAME_POINTER_REGNUM}, \ | |
| 465 {FRAME_POINTER_REGNUM, STACK_POINTER_REGNUM}} | |
| 466 | |
| 467 Note that the elimination of the argument pointer with the stack | |
| 468 pointer is specified first since that is the preferred elimination. */ | |
| 469 | |
| 470 #define ELIMINABLE_REGS \ | |
| 471 {{ FRAME_POINTER_REGNUM, STACK_POINTER_REGNUM }, \ | |
| 472 { FRAME_POINTER_REGNUM, HARD_FRAME_POINTER_REGNUM }, \ | |
| 473 { ARG_POINTER_REGNUM, STACK_POINTER_REGNUM }, \ | |
| 474 { ARG_POINTER_REGNUM, HARD_FRAME_POINTER_REGNUM }} \ | |
| 475 | |
| 111 | 476 /* This macro returns the initial difference between the specified pair |
| 477 of registers. */ | |
| 0 | 478 |
| 479 #define INITIAL_ELIMINATION_OFFSET(FROM, TO, OFFSET) \ | |
| 480 { \ | |
| 481 if ((FROM) == FRAME_POINTER_REGNUM) \ | |
| 482 (OFFSET) = get_frame_size () + crtl->outgoing_args_size; \ | |
| 483 else if ((FROM) == ARG_POINTER_REGNUM) \ | |
| 484 (OFFSET) = compute_frame_size (get_frame_size (), (long *)0); \ | |
| 485 else \ | |
| 486 gcc_unreachable (); \ | |
| 487 } | |
| 488 | |
| 489 /* Keep the stack pointer constant throughout the function. */ | |
| 490 #define ACCUMULATE_OUTGOING_ARGS 1 | |
| 491 | |
| 492 #define RETURN_ADDR_RTX(COUNT, FP) v850_return_addr (COUNT) | |
| 493 | |
| 494 /* Define a data type for recording info about an argument list | |
| 495 during the scan of that argument list. This data type should | |
| 496 hold all necessary information about the function itself | |
| 497 and about the args processed so far, enough to enable macros | |
| 498 such as FUNCTION_ARG to determine where the next arg should go. */ | |
| 499 | |
| 500 #define CUMULATIVE_ARGS struct cum_arg | |
| 111 | 501 struct cum_arg { int nbytes; }; |
| 0 | 502 |
| 503 /* Initialize a variable CUM of type CUMULATIVE_ARGS | |
| 504 for a call to a function whose data type is FNTYPE. | |
| 505 For a library call, FNTYPE is 0. */ | |
| 506 | |
| 507 #define INIT_CUMULATIVE_ARGS(CUM, FNTYPE, LIBNAME, INDIRECT, N_NAMED_ARGS) \ | |
| 111 | 508 do { (CUM).nbytes = 0; } while (0) |
| 0 | 509 |
| 510 /* When a parameter is passed in a register, stack space is still | |
| 511 allocated for it. */ | |
|
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512 #define REG_PARM_STACK_SPACE(DECL) 0 |
| 0 | 513 |
| 514 /* 1 if N is a possible register number for function argument passing. */ | |
| 515 | |
| 516 #define FUNCTION_ARG_REGNO_P(N) (N >= 6 && N <= 9) | |
| 517 | |
| 518 #define DEFAULT_PCC_STRUCT_RETURN 0 | |
| 519 | |
| 520 /* EXIT_IGNORE_STACK should be nonzero if, when returning from a function, | |
| 521 the stack pointer does not matter. The value is tested only in | |
| 522 functions that have frame pointers. | |
| 523 No definition is equivalent to always zero. */ | |
| 524 | |
| 525 #define EXIT_IGNORE_STACK 1 | |
| 526 | |
| 527 /* Define this macro as a C expression that is nonzero for registers | |
| 528 used by the epilogue or the `return' pattern. */ | |
| 529 | |
| 530 #define EPILOGUE_USES(REGNO) \ | |
| 531 (reload_completed && (REGNO) == LINK_POINTER_REGNUM) | |
| 532 | |
| 533 /* Output assembler code to FILE to increment profiler label # LABELNO | |
| 534 for profiling a function entry. */ | |
| 535 | |
| 536 #define FUNCTION_PROFILER(FILE, LABELNO) ; | |
| 537 | |
| 538 /* Length in units of the trampoline for entering a nested function. */ | |
| 539 | |
| 540 #define TRAMPOLINE_SIZE 24 | |
| 541 | |
| 542 /* Addressing modes, and classification of registers for them. */ | |
| 543 | |
| 544 | |
| 545 /* 1 if X is an rtx for a constant that is a valid address. */ | |
| 546 | |
| 547 /* ??? This seems too exclusive. May get better code by accepting more | |
| 548 possibilities here, in particular, should accept ZDA_NAME SYMBOL_REFs. */ | |
| 549 | |
|
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550 #define CONSTANT_ADDRESS_P(X) constraint_satisfied_p (X, CONSTRAINT_K) |
| 0 | 551 |
| 552 /* Maximum number of registers that can appear in a valid memory address. */ | |
| 553 | |
| 554 #define MAX_REGS_PER_ADDRESS 1 | |
| 555 | |
|
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556 /* Given a comparison code (EQ, NE, etc.) and the first operand of a COMPARE, |
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557 return the mode to be used for the comparison. |
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558 |
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559 For floating-point equality comparisons, CCFPEQmode should be used. |
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560 VOIDmode should be used in all other cases. |
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561 |
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562 For integer comparisons against zero, reduce to CCNOmode or CCZmode if |
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563 possible, to allow for more combinations. */ |
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564 |
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565 #define SELECT_CC_MODE(OP, X, Y) v850_select_cc_mode (OP, X, Y) |
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566 |
| 0 | 567 /* Nonzero if access to memory by bytes or half words is no faster |
| 568 than accessing full words. */ | |
| 569 #define SLOW_BYTE_ACCESS 1 | |
| 570 | |
| 571 /* According expr.c, a value of around 6 should minimize code size, and | |
| 572 for the V850 series, that's our primary concern. */ | |
| 573 #define MOVE_RATIO(speed) 6 | |
| 574 | |
| 575 /* Indirect calls are expensive, never turn a direct call | |
| 576 into an indirect call. */ | |
| 111 | 577 #define NO_FUNCTION_CSE 1 |
| 0 | 578 |
| 579 /* The four different data regions on the v850. */ | |
| 580 typedef enum | |
| 581 { | |
| 582 DATA_AREA_NORMAL, | |
| 583 DATA_AREA_SDA, | |
| 584 DATA_AREA_TDA, | |
| 585 DATA_AREA_ZDA | |
| 586 } v850_data_area; | |
| 587 | |
| 588 #define TEXT_SECTION_ASM_OP "\t.section .text" | |
| 589 #define DATA_SECTION_ASM_OP "\t.section .data" | |
| 590 #define BSS_SECTION_ASM_OP "\t.section .bss" | |
| 591 #define SDATA_SECTION_ASM_OP "\t.section .sdata,\"aw\"" | |
| 592 #define SBSS_SECTION_ASM_OP "\t.section .sbss,\"aw\"" | |
| 593 | |
| 594 #define SCOMMON_ASM_OP "\t.scomm\t" | |
| 595 #define ZCOMMON_ASM_OP "\t.zcomm\t" | |
| 596 #define TCOMMON_ASM_OP "\t.tcomm\t" | |
| 597 | |
| 598 #define ASM_COMMENT_START "#" | |
| 599 | |
| 600 /* Output to assembler file text saying following lines | |
| 601 may contain character constants, extra white space, comments, etc. */ | |
| 602 | |
| 603 #define ASM_APP_ON "#APP\n" | |
| 604 | |
| 605 /* Output to assembler file text saying following lines | |
| 606 no longer contain unusual constructs. */ | |
| 607 | |
| 608 #define ASM_APP_OFF "#NO_APP\n" | |
| 609 | |
| 610 #undef USER_LABEL_PREFIX | |
| 611 #define USER_LABEL_PREFIX "_" | |
| 612 | |
| 613 /* This says how to output the assembler to define a global | |
| 614 uninitialized but not common symbol. */ | |
| 615 | |
| 616 #define ASM_OUTPUT_ALIGNED_BSS(FILE, DECL, NAME, SIZE, ALIGN) \ | |
| 617 asm_output_aligned_bss ((FILE), (DECL), (NAME), (SIZE), (ALIGN)) | |
| 618 | |
| 619 #undef ASM_OUTPUT_ALIGNED_BSS | |
| 620 #define ASM_OUTPUT_ALIGNED_BSS(FILE, DECL, NAME, SIZE, ALIGN) \ | |
| 621 v850_output_aligned_bss (FILE, DECL, NAME, SIZE, ALIGN) | |
| 622 | |
| 623 /* This says how to output the assembler to define a global | |
| 624 uninitialized, common symbol. */ | |
| 625 #undef ASM_OUTPUT_ALIGNED_COMMON | |
| 626 #undef ASM_OUTPUT_COMMON | |
| 627 #define ASM_OUTPUT_ALIGNED_DECL_COMMON(FILE, DECL, NAME, SIZE, ALIGN) \ | |
| 628 v850_output_common (FILE, DECL, NAME, SIZE, ALIGN) | |
| 629 | |
| 630 /* This says how to output the assembler to define a local | |
| 631 uninitialized symbol. */ | |
| 632 #undef ASM_OUTPUT_ALIGNED_LOCAL | |
| 633 #undef ASM_OUTPUT_LOCAL | |
| 634 #define ASM_OUTPUT_ALIGNED_DECL_LOCAL(FILE, DECL, NAME, SIZE, ALIGN) \ | |
| 635 v850_output_local (FILE, DECL, NAME, SIZE, ALIGN) | |
| 636 | |
| 637 /* Globalizing directive for a label. */ | |
| 638 #define GLOBAL_ASM_OP "\t.global " | |
| 639 | |
| 640 #define ASM_PN_FORMAT "%s___%lu" | |
| 641 | |
| 642 /* This is how we tell the assembler that two symbols have the same value. */ | |
| 643 | |
| 644 #define ASM_OUTPUT_DEF(FILE,NAME1,NAME2) \ | |
| 645 do { assemble_name(FILE, NAME1); \ | |
| 646 fputs(" = ", FILE); \ | |
| 647 assemble_name(FILE, NAME2); \ | |
| 648 fputc('\n', FILE); } while (0) | |
| 649 | |
| 650 | |
| 651 /* How to refer to registers in assembler output. | |
| 652 This sequence is indexed by compiler's hard-register-number (see above). */ | |
| 653 | |
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654 #define REGISTER_NAMES \ |
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655 { "r0", "r1", "r2", "sp", "gp", "r5", "r6" , "r7", \ |
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656 "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15", \ |
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657 "r16", "r17", "r18", "r19", "r20", "r21", "r22", "r23", \ |
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658 "r24", "r25", "r26", "r27", "r28", "r29", "ep", "r31", \ |
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659 "psw", "fcc", \ |
| 0 | 660 ".fp", ".ap"} |
| 661 | |
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662 /* Register numbers */ |
| 0 | 663 |
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664 #define ADDITIONAL_REGISTER_NAMES \ |
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665 { { "zero", ZERO_REGNUM }, \ |
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666 { "hp", 2 }, \ |
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667 { "r3", 3 }, \ |
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668 { "r4", 4 }, \ |
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669 { "tp", 5 }, \ |
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670 { "fp", 29 }, \ |
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671 { "r30", 30 }, \ |
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672 { "lp", LP_REGNUM} } |
| 0 | 673 |
| 674 /* This is how to output an element of a case-vector that is absolute. */ | |
| 675 | |
| 676 #define ASM_OUTPUT_ADDR_VEC_ELT(FILE, VALUE) \ | |
| 677 fprintf (FILE, "\t%s .L%d\n", \ | |
| 678 (TARGET_BIG_SWITCH ? ".long" : ".short"), VALUE) | |
| 679 | |
| 680 /* This is how to output an element of a case-vector that is relative. */ | |
| 681 | |
| 682 /* Disable the shift, which is for the currently disabled "switch" | |
| 683 opcode. Se casesi in v850.md. */ | |
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684 |
| 0 | 685 #define ASM_OUTPUT_ADDR_DIFF_ELT(FILE, BODY, VALUE, REL) \ |
| 686 fprintf (FILE, "\t%s %s.L%d-.L%d%s\n", \ | |
| 687 (TARGET_BIG_SWITCH ? ".long" : ".short"), \ | |
| 111 | 688 (0 && ! TARGET_BIG_SWITCH && (TARGET_V850E_UP) ? "(" : ""), \ |
| 0 | 689 VALUE, REL, \ |
| 111 | 690 (0 && ! TARGET_BIG_SWITCH && (TARGET_V850E_UP) ? ")>>1" : "")) |
| 0 | 691 |
| 692 #define ASM_OUTPUT_ALIGN(FILE, LOG) \ | |
| 693 if ((LOG) != 0) \ | |
| 694 fprintf (FILE, "\t.align %d\n", (LOG)) | |
| 695 | |
| 696 /* We don't have to worry about dbx compatibility for the v850. */ | |
| 697 #define DEFAULT_GDB_EXTENSIONS 1 | |
| 698 | |
| 111 | 699 /* Use dwarf2 debugging info by default. */ |
| 700 #undef PREFERRED_DEBUGGING_TYPE | |
| 701 #define PREFERRED_DEBUGGING_TYPE DWARF2_DEBUG | |
| 702 | |
| 703 #define DWARF2_FRAME_INFO 1 | |
| 704 #define DWARF2_UNWIND_INFO 0 | |
| 705 #define INCOMING_RETURN_ADDR_RTX gen_rtx_REG (Pmode, LINK_POINTER_REGNUM) | |
| 706 #define DWARF_FRAME_RETURN_COLUMN DWARF_FRAME_REGNUM (LINK_POINTER_REGNUM) | |
| 707 | |
| 708 #ifndef ASM_GENERATE_INTERNAL_LABEL | |
| 709 #define ASM_GENERATE_INTERNAL_LABEL(STRING, PREFIX, NUM) \ | |
| 710 sprintf (STRING, "*.%s%u", PREFIX, (unsigned int)(NUM)) | |
| 711 #endif | |
| 0 | 712 |
| 713 /* Specify the machine mode that this machine uses | |
| 714 for the index in the tablejump instruction. */ | |
| 715 #define CASE_VECTOR_MODE (TARGET_BIG_SWITCH ? SImode : HImode) | |
| 716 | |
| 717 /* Define as C expression which evaluates to nonzero if the tablejump | |
| 718 instruction expects the table to contain offsets from the address of the | |
| 719 table. | |
| 720 Do not define this if the table should contain absolute addresses. */ | |
| 721 #define CASE_VECTOR_PC_RELATIVE 1 | |
| 722 | |
| 723 /* The switch instruction requires that the jump table immediately follow | |
| 724 it. */ | |
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725 #define JUMP_TABLES_IN_TEXT_SECTION (!TARGET_JUMP_TABLES_IN_DATA_SECTION) |
| 0 | 726 |
| 727 #undef ASM_OUTPUT_BEFORE_CASE_LABEL | |
| 728 #define ASM_OUTPUT_BEFORE_CASE_LABEL(FILE,PREFIX,NUM,TABLE) \ | |
| 131 | 729 ASM_OUTPUT_ALIGN ((FILE), (TARGET_BIG_SWITCH ? 2 : 1)) |
| 0 | 730 |
| 111 | 731 #define WORD_REGISTER_OPERATIONS 1 |
| 0 | 732 |
| 733 /* Byte and short loads sign extend the value to a word. */ | |
| 734 #define LOAD_EXTEND_OP(MODE) SIGN_EXTEND | |
| 735 | |
| 736 /* Max number of bytes we can move from memory to memory | |
| 737 in one reasonably fast instruction. */ | |
| 738 #define MOVE_MAX 4 | |
| 739 | |
| 740 /* Define if shifts truncate the shift count | |
| 741 which implies one can omit a sign-extension or zero-extension | |
| 742 of a shift count. */ | |
| 743 #define SHIFT_COUNT_TRUNCATED 1 | |
| 744 | |
| 745 /* Specify the machine mode that pointers have. | |
| 746 After generation of rtl, the compiler makes no further distinction | |
| 747 between pointers and any other objects of this machine mode. */ | |
| 748 #define Pmode SImode | |
| 749 | |
| 750 /* A function address in a call instruction | |
| 751 is a byte address (for indexing purposes) | |
| 752 so give the MEM rtx a byte's mode. */ | |
| 753 #define FUNCTION_MODE QImode | |
| 754 | |
| 755 /* Tell compiler we want to support GHS pragmas */ | |
| 756 #define REGISTER_TARGET_PRAGMAS() do { \ | |
| 757 c_register_pragma ("ghs", "interrupt", ghs_pragma_interrupt); \ | |
| 758 c_register_pragma ("ghs", "section", ghs_pragma_section); \ | |
| 759 c_register_pragma ("ghs", "starttda", ghs_pragma_starttda); \ | |
| 760 c_register_pragma ("ghs", "startsda", ghs_pragma_startsda); \ | |
| 761 c_register_pragma ("ghs", "startzda", ghs_pragma_startzda); \ | |
| 762 c_register_pragma ("ghs", "endtda", ghs_pragma_endtda); \ | |
| 763 c_register_pragma ("ghs", "endsda", ghs_pragma_endsda); \ | |
| 764 c_register_pragma ("ghs", "endzda", ghs_pragma_endzda); \ | |
| 765 } while (0) | |
| 766 | |
| 767 /* enum GHS_SECTION_KIND is an enumeration of the kinds of sections that | |
| 768 can appear in the "ghs section" pragma. These names are used to index | |
| 769 into the GHS_default_section_names[] and GHS_current_section_names[] | |
| 770 that are defined in v850.c, and so the ordering of each must remain | |
| 771 consistent. | |
| 772 | |
| 773 These arrays give the default and current names for each kind of | |
| 774 section defined by the GHS pragmas. The current names can be changed | |
| 775 by the "ghs section" pragma. If the current names are null, use | |
| 776 the default names. Note that the two arrays have different types. | |
| 777 | |
| 778 For the *normal* section kinds (like .data, .text, etc.) we do not | |
| 779 want to explicitly force the name of these sections, but would rather | |
| 780 let the linker (or at least the back end) choose the name of the | |
| 111 | 781 section, UNLESS the user has forced a specific name for these section |
| 0 | 782 kinds. To accomplish this set the name in ghs_default_section_names |
| 783 to null. */ | |
| 784 | |
| 785 enum GHS_section_kind | |
| 786 { | |
| 787 GHS_SECTION_KIND_DEFAULT, | |
| 788 | |
| 789 GHS_SECTION_KIND_TEXT, | |
| 790 GHS_SECTION_KIND_DATA, | |
| 791 GHS_SECTION_KIND_RODATA, | |
| 792 GHS_SECTION_KIND_BSS, | |
| 793 GHS_SECTION_KIND_SDATA, | |
| 794 GHS_SECTION_KIND_ROSDATA, | |
| 795 GHS_SECTION_KIND_TDATA, | |
| 796 GHS_SECTION_KIND_ZDATA, | |
| 797 GHS_SECTION_KIND_ROZDATA, | |
| 798 | |
| 799 COUNT_OF_GHS_SECTION_KINDS /* must be last */ | |
| 800 }; | |
| 801 | |
| 802 /* The following code is for handling pragmas supported by the | |
| 803 v850 compiler produced by Green Hills Software. This is at | |
| 804 the specific request of a customer. */ | |
| 805 | |
| 806 typedef struct data_area_stack_element | |
| 807 { | |
| 808 struct data_area_stack_element * prev; | |
| 809 v850_data_area data_area; /* Current default data area. */ | |
| 810 } data_area_stack_element; | |
| 811 | |
| 812 /* Track the current data area set by the | |
| 813 data area pragma (which can be nested). */ | |
| 814 extern data_area_stack_element * data_area_stack; | |
| 815 | |
| 816 /* Names of the various data areas used on the v850. */ | |
| 111 | 817 extern const char * GHS_default_section_names [(int) COUNT_OF_GHS_SECTION_KINDS]; |
| 818 extern const char * GHS_current_section_names [(int) COUNT_OF_GHS_SECTION_KINDS]; | |
| 0 | 819 |
| 820 /* The assembler op to start the file. */ | |
| 821 | |
| 822 #define FILE_ASM_OP "\t.file\n" | |
| 823 | |
| 824 /* Implement ZDA, TDA, and SDA */ | |
| 825 | |
| 826 #define EP_REGNUM 30 /* ep register number */ | |
| 827 | |
| 828 #define SYMBOL_FLAG_ZDA (SYMBOL_FLAG_MACH_DEP << 0) | |
| 829 #define SYMBOL_FLAG_TDA (SYMBOL_FLAG_MACH_DEP << 1) | |
| 830 #define SYMBOL_FLAG_SDA (SYMBOL_FLAG_MACH_DEP << 2) | |
| 831 #define SYMBOL_REF_ZDA_P(X) ((SYMBOL_REF_FLAGS (X) & SYMBOL_FLAG_ZDA) != 0) | |
| 832 #define SYMBOL_REF_TDA_P(X) ((SYMBOL_REF_FLAGS (X) & SYMBOL_FLAG_TDA) != 0) | |
| 833 #define SYMBOL_REF_SDA_P(X) ((SYMBOL_REF_FLAGS (X) & SYMBOL_FLAG_SDA) != 0) | |
| 834 | |
| 835 #define TARGET_ASM_INIT_SECTIONS v850_asm_init_sections | |
| 836 | |
| 111 | 837 #define ADJUST_INSN_LENGTH(INSN, LENGTH) \ |
| 838 ((LENGTH) = v850_adjust_insn_length ((INSN), (LENGTH))) | |
| 839 | |
| 0 | 840 #endif /* ! GCC_V850_H */ |