1 /* Id: macdefs.h,v 1.10 2009/01/24 21:43:49 gmcgarry Exp */ 2 /* $NetBSD: macdefs.h,v 1.1.1.3 2010/06/03 18:57:19 plunky Exp $ */ 3 /* 4 * Copyright (c) 2003 Anders Magnusson (ragge@ludd.luth.se). 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. The name of the author may not be used to endorse or promote products 16 * derived from this software without specific prior written permission 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 21 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 23 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28 */ 29 30 /* 31 * MIPS port by Jan Enoksson (janeno-1@student.ltu.se) and 32 * Simon Olsson (simols-1@student.ltu.se) 2005. 33 */ 34 35 /* 36 * Machine-dependent defines for both passes. 37 */ 38 39 #if TARGOS == netbsd 40 #define USE_GAS 41 #endif 42 43 /* 44 * Convert (multi-)character constant to integer. 45 * Assume: If only one value; store at left side (char size), otherwise 46 * treat it as an integer. 47 */ 48 #define makecc(val,i) lastcon = (lastcon<<8)|((val<<24)>>24); 49 50 #define ARGINIT (16*8) /* # bits above fp where arguments start */ 51 #define AUTOINIT (0) /* # bits below fp where automatics start */ 52 53 /* 54 * Storage space requirements 55 */ 56 #define SZCHAR 8 57 #define SZBOOL 32 58 #define SZINT 32 59 #define SZFLOAT 32 60 #define SZDOUBLE 64 61 #define SZLDOUBLE 64 62 #define SZLONG 32 63 #define SZSHORT 16 64 #define SZLONGLONG 64 65 #define SZPOINT(t) 32 66 67 /* 68 * Alignment constraints 69 */ 70 #define ALCHAR 8 71 #define ALBOOL 32 72 #define ALINT 32 73 #define ALFLOAT 32 74 #define ALDOUBLE 64 75 #define ALLDOUBLE 64 76 #define ALLONG 32 77 #define ALLONGLONG 64 78 #define ALSHORT 16 79 #define ALPOINT 32 80 #define ALSTRUCT 64 81 #define ALSTACK 32 82 83 /* 84 * Min/max values. 85 */ 86 #define MIN_CHAR -128 87 #define MAX_CHAR 127 88 #define MAX_UCHAR 255 89 #define MIN_SHORT -32768 90 #define MAX_SHORT 32767 91 #define MAX_USHORT 65535 92 #define MIN_INT -1 93 #define MAX_INT 0x7fffffff 94 #define MAX_UNSIGNED 0xffffffff 95 #define MIN_LONG MIN_INT 96 #define MAX_LONG MAX_INT 97 #define MAX_ULONG MAX_UNSIGNED 98 #define MIN_LONGLONG 0x8000000000000000LL 99 #define MAX_LONGLONG 0x7fffffffffffffffLL 100 #define MAX_ULONGLONG 0xffffffffffffffffULL 101 102 #undef CHAR_UNSIGNED 103 #define BOOL_TYPE INT 104 105 /* 106 * Use large-enough types. 107 */ 108 typedef long long CONSZ; 109 typedef unsigned long long U_CONSZ; 110 typedef long long OFFSZ; 111 112 #define CONFMT "%lld" /* format for printing constants */ 113 #ifdef USE_GAS 114 #define LABFMT "$L%d" /* format for printing labels */ 115 #define STABLBL "$LL%d" /* format for stab (debugging) labels */ 116 #else 117 #define LABFMT "L%d" /* format for printing labels */ 118 #define STABLBL "LL%d" /* format for stab (debugging) labels */ 119 #endif 120 121 #define BACKAUTO /* stack grows negatively for automatics */ 122 #define BACKTEMP /* stack grows negatively for temporaries */ 123 124 #undef FIELDOPS /* no bit-field instructions */ 125 #define RTOLBYTES 1 /* bytes are numbered right to left */ 126 127 #define ENUMSIZE(high,low) INT /* enums are always stored in full int */ 128 129 /* Definitions mostly used in pass2 */ 130 131 #define BYTEOFF(x) ((x)&03) 132 #define BITOOR(x) (x) /* bit offset to oreg offset */ 133 134 #define szty(t) (((t) == DOUBLE || (t) == LDOUBLE || \ 135 DEUNSIGN(t) == LONGLONG) ? 2 : 1) 136 137 /* 138 * Register names. These must match rnames[] and rstatus[] in local2.c. 139 */ 140 #define ZERO 0 141 #define AT 1 142 #define V0 2 143 #define V1 3 144 #define A0 4 145 #define A1 5 146 #define A2 6 147 #define A3 7 148 #define A4 8 149 #define A5 9 150 #define A6 10 151 #define A7 11 152 #if defined(MIPS_N32) || defined(MIPS_N64) 153 #define T0 12 154 #define T1 13 155 #define T2 14 156 #define T3 15 157 #else 158 #define T0 8 159 #define T1 9 160 #define T2 10 161 #define T3 11 162 #endif 163 #define T4 12 164 #define T5 13 165 #define T6 14 166 #define T7 15 167 #define S0 16 168 #define S1 17 169 #define S2 18 170 #define S3 19 171 #define S4 20 172 #define S5 21 173 #define S6 22 174 #define S7 23 175 #define T8 24 176 #define T9 25 177 #define K0 26 178 #define K1 27 179 #define GP 28 180 #define SP 29 181 #define FP 30 182 #define RA 31 183 184 #define V0V1 32 185 #define A0A1 33 186 #define A1A2 34 187 #define A2A3 35 188 189 /* we just use o32 naming here, but it works ok for n32/n64 */ 190 #define A3T0 36 191 #define T0T1 37 192 #define T1T2 38 193 #define T2T3 39 194 #define T3T4 40 195 #define T4T5 41 196 #define T5T6 42 197 #define T6T7 43 198 #define T7T8 44 199 200 #define T8T9 45 201 #define S0S1 46 202 #define S1S2 47 203 #define S2S3 48 204 #define S3S4 49 205 #define S4S5 50 206 #define S5S6 51 207 #define S6S7 52 208 209 #define F0 53 210 #define F2 54 211 #define F4 55 212 #define F6 56 213 #define F8 57 214 #define F10 58 215 #define F12 59 216 #define F14 60 217 #define F16 61 218 #define F18 62 219 #define F20 63 220 /* and the rest for later */ 221 #define F22 64 222 #define F24 65 223 #define F26 66 224 #define F28 67 225 #define F30 68 226 227 #define MAXREGS 64 228 #define NUMCLASS 3 229 230 #define RETREG(x) (DEUNSIGN(x) == LONGLONG ? V0V1 : \ 231 (x) == DOUBLE || (x) == LDOUBLE || (x) == FLOAT ? \ 232 F0 : V0) 233 #define FPREG FP /* frame pointer */ 234 235 #define MIPS_N32_NARGREGS 8 236 #define MIPS_O32_NARGREGS 4 237 238 #define RSTATUS \ 239 0, 0, \ 240 SAREG|TEMPREG, SAREG|TEMPREG, \ 241 SAREG|TEMPREG, SAREG|TEMPREG, SAREG|TEMPREG, SAREG|TEMPREG, \ 242 SAREG|TEMPREG, SAREG|TEMPREG, SAREG|TEMPREG, SAREG|TEMPREG, \ 243 SAREG|TEMPREG, SAREG|TEMPREG, SAREG|TEMPREG, SAREG|TEMPREG, \ 244 SAREG|PERMREG, SAREG|PERMREG, SAREG|PERMREG, SAREG|PERMREG, \ 245 SAREG|PERMREG, SAREG|PERMREG, SAREG|PERMREG, SAREG|PERMREG, \ 246 SAREG|TEMPREG, SAREG|TEMPREG, \ 247 0, 0, \ 248 0, 0, 0, 0, \ 249 \ 250 SBREG|TEMPREG, \ 251 SBREG|TEMPREG, SBREG|TEMPREG, SBREG|TEMPREG, \ 252 SBREG|TEMPREG, \ 253 SBREG|TEMPREG, SBREG|TEMPREG, SBREG|TEMPREG, \ 254 SBREG|TEMPREG, SBREG|TEMPREG, \ 255 SBREG|TEMPREG, SBREG|TEMPREG, SBREG|TEMPREG, SBREG|TEMPREG, \ 256 SBREG, SBREG, SBREG, SBREG, \ 257 SBREG, SBREG, SBREG, \ 258 SCREG, SCREG, SCREG, SCREG, \ 259 SCREG, SCREG, SCREG, SCREG, \ 260 SCREG, SCREG, SCREG, \ 261 262 #define ROVERLAP \ 263 { -1 }, /* $zero */ \ 264 { -1 }, /* $at */ \ 265 { V0V1, -1 }, /* $v0 */ \ 266 { V0V1, -1 }, /* $v1 */ \ 267 { A0A1, -1 }, /* $a0 */ \ 268 { A0A1, A1A2, -1 }, /* $a1 */ \ 269 { A1A2, A2A3, -1 }, /* $a2 */ \ 270 { A2A3, A3T0, -1 }, /* $a3 */ \ 271 { A3T0, T0T1, -1 }, /* $t0 */ \ 272 { T0T1, T1T2, -1 }, /* $t1 */ \ 273 { T1T2, T2T3, -1 }, /* $t2 */ \ 274 { T2T3, T3T4, -1 }, /* $t3 */ \ 275 { T3T4, T4T5, -1 }, /* $t4 */ \ 276 { T4T5, T5T6, -1 }, /* $t5 */ \ 277 { T6T7, T7T8, -1 }, /* $t6 */ \ 278 { T7T8, T8T9, -1 }, /* $t7 */ \ 279 \ 280 { S0S1, -1 }, /* $s0 */ \ 281 { S0S1, S1S2, -1 }, /* $s1 */ \ 282 { S1S2, S2S3, -1 }, /* $s2 */ \ 283 { S2S3, S3S4, -1 }, /* $s3 */ \ 284 { S3S4, S4S5, -1 }, /* $s4 */ \ 285 { S4S5, S5S6, -1 }, /* $s5 */ \ 286 { S5S6, S6S7, -1 }, /* $s6 */ \ 287 { S6S7, -1 }, /* $s7 */ \ 288 \ 289 { T7T8, T8T9, -1 }, /* $t8 */ \ 290 { T8T9, -1 }, /* $t9 */ \ 291 \ 292 { -1 }, /* $k0 */ \ 293 { -1 }, /* $k1 */ \ 294 { -1 }, /* $gp */ \ 295 { -1 }, /* $sp */ \ 296 { -1 }, /* $fp */ \ 297 { -1 }, /* $ra */ \ 298 \ 299 { V0, V1, -1 }, /* $v0:$v1 */ \ 300 \ 301 { A0, A1, A1A2, -1 }, /* $a0:$a1 */ \ 302 { A1, A2, A0A1, A2A3, -1 }, /* $a1:$a2 */ \ 303 { A2, A3, A1A2, A3T0, -1 }, /* $a2:$a3 */ \ 304 { A3, T0, A2A3, T0T1, -1 }, /* $a3:$t0 */ \ 305 { T0, T1, A3T0, T1T2, -1 }, /* $t0:$t1 */ \ 306 { T1, T2, T0T1, T2T3, -1 }, /* $t1:$t2 */ \ 307 { T2, T3, T1T2, T3T4, -1 }, /* $t2:$t3 */ \ 308 { T3, T4, T2T3, T4T5, -1 }, /* $t3:$t4 */ \ 309 { T4, T5, T3T4, T5T6, -1 }, /* $t4:$t5 */ \ 310 { T5, T6, T4T5, T6T7, -1 }, /* $t5:$t6 */ \ 311 { T6, T7, T5T6, T7T8, -1 }, /* $t6:$t7 */ \ 312 { T7, T8, T6T7, T8T9, -1 }, /* $t7:$t8 */ \ 313 { T8, T9, T7T8, -1 }, /* $t8:$t9 */ \ 314 \ 315 { S0, S1, S1S2, -1 }, /* $s0:$s1 */ \ 316 { S1, S2, S0S1, S2S3, -1 }, \ 317 { S2, S3, S1S2, S3S4, -1 }, \ 318 { S3, S4, S2S3, S4S5, -1 }, \ 319 { S4, S5, S3S4, S5S6, -1 }, \ 320 { S5, S6, S4S5, S6S7, -1 }, \ 321 { S6, S7, S5S6, -1 }, \ 322 \ 323 { -1 }, { -1 }, { -1 }, { -1 }, \ 324 { -1 }, { -1 }, { -1 }, { -1 }, \ 325 { -1 }, { -1 }, { -1 }, \ 326 327 #define GCLASS(x) (x < 32 ? CLASSA : (x < 52 ? CLASSB : CLASSC)) 328 #define PCLASS(p) (1 << gclass((p)->n_type)) 329 #define DECRA(x,y) (((x) >> (y*6)) & 63) /* decode encoded regs */ 330 #define ENCRA(x,y) ((x) << (6+y*6)) /* encode regs in int */ 331 #define ENCRD(x) (x) /* Encode dest reg in n_reg */ 332 333 int COLORMAP(int c, int *r); 334 335 extern int bigendian; 336 extern int nargregs; 337 338 #define SPCON (MAXSPECIAL+1) /* positive constant */ 339 340 #define TARGET_STDARGS 341 #define TARGET_BUILTINS \ 342 { "__builtin_stdarg_start", mips_builtin_stdarg_start }, \ 343 { "__builtin_va_arg", mips_builtin_va_arg }, \ 344 { "__builtin_va_end", mips_builtin_va_end }, \ 345 { "__builtin_va_copy", mips_builtin_va_copy }, 346 347 struct node; 348 struct node *mips_builtin_stdarg_start(struct node *f, struct node *a); 349 struct node *mips_builtin_va_arg(struct node *f, struct node *a); 350 struct node *mips_builtin_va_end(struct node *f, struct node *a); 351 struct node *mips_builtin_va_copy(struct node *f, struct node *a); 352