1# Copyright (C) 2011 Apple Inc. All rights reserved. 2# 3# Redistribution and use in source and binary forms, with or without 4# modification, are permitted provided that the following conditions 5# are met: 6# 1. Redistributions of source code must retain the above copyright 7# notice, this list of conditions and the following disclaimer. 8# 2. Redistributions in binary form must reproduce the above copyright 9# notice, this list of conditions and the following disclaimer in the 10# documentation and/or other materials provided with the distribution. 11# 12# THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' 13# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, 14# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 15# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS 16# BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 17# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 18# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 19# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 20# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 21# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 22# THE POSSIBILITY OF SUCH DAMAGE. 23 24require "config" 25require "set" 26 27# Interesting invariant, which we take advantage of: branching instructions 28# always begin with "b", and no non-branching instructions begin with "b". 29# Terminal instructions are "jmp" and "ret". 30 31MACRO_INSTRUCTIONS = 32 [ 33 "addi", 34 "andi", 35 "lshifti", 36 "lshiftp", 37 "lshiftq", 38 "muli", 39 "negi", 40 "negp", 41 "negq", 42 "noti", 43 "ori", 44 "rshifti", 45 "urshifti", 46 "rshiftp", 47 "urshiftp", 48 "rshiftq", 49 "urshiftq", 50 "subi", 51 "xori", 52 "loadi", 53 "loadis", 54 "loadb", 55 "loadbs", 56 "loadh", 57 "loadhs", 58 "storei", 59 "storeb", 60 "loadd", 61 "moved", 62 "stored", 63 "addd", 64 "divd", 65 "subd", 66 "muld", 67 "sqrtd", 68 "ci2d", 69 "fii2d", # usage: fii2d <gpr with least significant bits>, <gpr with most significant bits>, <fpr> 70 "fd2ii", # usage: fd2ii <fpr>, <gpr with least significant bits>, <gpr with most significant bits> 71 "fq2d", 72 "fd2q", 73 "bdeq", 74 "bdneq", 75 "bdgt", 76 "bdgteq", 77 "bdlt", 78 "bdlteq", 79 "bdequn", 80 "bdnequn", 81 "bdgtun", 82 "bdgtequn", 83 "bdltun", 84 "bdltequn", 85 "btd2i", 86 "td2i", 87 "bcd2i", 88 "movdz", 89 "pop", 90 "push", 91 "move", 92 "sxi2q", 93 "zxi2q", 94 "nop", 95 "bieq", 96 "bineq", 97 "bia", 98 "biaeq", 99 "bib", 100 "bibeq", 101 "bigt", 102 "bigteq", 103 "bilt", 104 "bilteq", 105 "bbeq", 106 "bbneq", 107 "bba", 108 "bbaeq", 109 "bbb", 110 "bbbeq", 111 "bbgt", 112 "bbgteq", 113 "bblt", 114 "bblteq", 115 "btis", 116 "btiz", 117 "btinz", 118 "btbs", 119 "btbz", 120 "btbnz", 121 "jmp", 122 "baddio", 123 "baddis", 124 "baddiz", 125 "baddinz", 126 "bsubio", 127 "bsubis", 128 "bsubiz", 129 "bsubinz", 130 "bmulio", 131 "bmulis", 132 "bmuliz", 133 "bmulinz", 134 "borio", 135 "boris", 136 "boriz", 137 "borinz", 138 "break", 139 "call", 140 "ret", 141 "cbeq", 142 "cbneq", 143 "cba", 144 "cbaeq", 145 "cbb", 146 "cbbeq", 147 "cbgt", 148 "cbgteq", 149 "cblt", 150 "cblteq", 151 "cieq", 152 "cineq", 153 "cia", 154 "ciaeq", 155 "cib", 156 "cibeq", 157 "cigt", 158 "cigteq", 159 "cilt", 160 "cilteq", 161 "tis", 162 "tiz", 163 "tinz", 164 "tbs", 165 "tbz", 166 "tbnz", 167 "tps", 168 "tpz", 169 "tpnz", 170 "peek", 171 "poke", 172 "bpeq", 173 "bpneq", 174 "bpa", 175 "bpaeq", 176 "bpb", 177 "bpbeq", 178 "bpgt", 179 "bpgteq", 180 "bplt", 181 "bplteq", 182 "addp", 183 "mulp", 184 "andp", 185 "orp", 186 "subp", 187 "xorp", 188 "loadp", 189 "cpeq", 190 "cpneq", 191 "cpa", 192 "cpaeq", 193 "cpb", 194 "cpbeq", 195 "cpgt", 196 "cpgteq", 197 "cplt", 198 "cplteq", 199 "storep", 200 "btps", 201 "btpz", 202 "btpnz", 203 "baddpo", 204 "baddps", 205 "baddpz", 206 "baddpnz", 207 "tqs", 208 "tqz", 209 "tqnz", 210 "bqeq", 211 "bqneq", 212 "bqa", 213 "bqaeq", 214 "bqb", 215 "bqbeq", 216 "bqgt", 217 "bqgteq", 218 "bqlt", 219 "bqlteq", 220 "addq", 221 "mulq", 222 "andq", 223 "orq", 224 "subq", 225 "xorq", 226 "loadq", 227 "cqeq", 228 "cqneq", 229 "cqa", 230 "cqaeq", 231 "cqb", 232 "cqbeq", 233 "cqgt", 234 "cqgteq", 235 "cqlt", 236 "cqlteq", 237 "storeq", 238 "btqs", 239 "btqz", 240 "btqnz", 241 "baddqo", 242 "baddqs", 243 "baddqz", 244 "baddqnz", 245 "bo", 246 "bs", 247 "bz", 248 "bnz", 249 "leai", 250 "leap", 251 "pushCalleeSaves", 252 "popCalleeSaves", 253 "memfence" 254 ] 255 256X86_INSTRUCTIONS = 257 [ 258 "cdqi", 259 "idivi" 260 ] 261 262ARM_INSTRUCTIONS = 263 [ 264 "clrbp", 265 "mvlbl" 266 ] 267 268ARM64_INSTRUCTIONS = 269 [ 270 "pcrtoaddr", # Address from PC relative offset - adr instruction 271 "popLRAndFP", # ARM64 requires registers to be pushed and popped in pairs, 272 "pushLRAndFP" # therefore we do LR (link register) and FP (frame pointer) together. 273 ] 274 275RISC_INSTRUCTIONS = 276 [ 277 "smulli", # Multiply two 32-bit words and produce a 64-bit word 278 "addis", # Add integers and set a flag. 279 "subis", # Same, but for subtraction. 280 "oris", # Same, but for bitwise or. 281 "addps" # addis but for pointers. 282 ] 283 284MIPS_INSTRUCTIONS = 285 [ 286 "movz", 287 "movn", 288 "slt", 289 "sltu", 290 "pichdr", 291 "pichdrra" 292 ] 293 294SH4_INSTRUCTIONS = 295 [ 296 "flushcp", 297 "alignformova", 298 "mova", 299 "shllx", 300 "shlrx", 301 "shld", 302 "shad", 303 "bdnan", 304 "loaddReversedAndIncrementAddress", 305 "storedReversedAndDecrementAddress", 306 "ldspr", 307 "stspr", 308 "setargs" 309 ] 310 311CXX_INSTRUCTIONS = 312 [ 313 "cloopCrash", # no operands 314 "cloopCallJSFunction", # operands: callee 315 "cloopCallNative", # operands: callee 316 "cloopCallSlowPath", # operands: callTarget, currentFrame, currentPC 317 "cloopCallSlowPathVoid", # operands: callTarget, currentFrame, currentPC 318 319 # For debugging only: 320 # Takes no operands but simply emits whatever follows in // comments as 321 # a line of C++ code in the generated LLIntAssembly.h file. This can be 322 # used to insert instrumentation into the interpreter loop to inspect 323 # variables of interest. Do not leave these instructions in production 324 # code. 325 "cloopDo", # no operands 326 ] 327 328INSTRUCTIONS = MACRO_INSTRUCTIONS + X86_INSTRUCTIONS + ARM_INSTRUCTIONS + ARM64_INSTRUCTIONS + RISC_INSTRUCTIONS + MIPS_INSTRUCTIONS + SH4_INSTRUCTIONS + CXX_INSTRUCTIONS 329 330INSTRUCTION_SET = INSTRUCTIONS.to_set 331 332def isBranch(instruction) 333 instruction =~ /^b/ 334end 335 336def hasFallThrough(instruction) 337 instruction != "ret" and instruction != "jmp" 338end 339 340