1 // Copyright 2012 the V8 project authors. All rights reserved. 2 // Redistribution and use in source and binary forms, with or without 3 // modification, are permitted provided that the following conditions are 4 // met: 5 // 6 // * Redistributions of source code must retain the above copyright 7 // notice, this list of conditions and the following disclaimer. 8 // * Redistributions in binary form must reproduce the above 9 // copyright notice, this list of conditions and the following 10 // disclaimer in the documentation and/or other materials provided 11 // with the distribution. 12 // * Neither the name of Google Inc. nor the names of its 13 // contributors may be used to endorse or promote products derived 14 // from this software without specific prior written permission. 15 // 16 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 17 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 18 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 19 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 20 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 21 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 22 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 // 28 29 #include <stdlib.h> 30 31 #include "v8.h" 32 33 #include "debug.h" 34 #include "disasm.h" 35 #include "disassembler.h" 36 #include "macro-assembler.h" 37 #include "serialize.h" 38 #include "cctest.h" 39 40 using namespace v8::internal; 41 42 43 static v8::Persistent<v8::Context> env; 44 45 static void InitializeVM() { 46 // Disable compilation of natives. 47 FLAG_disable_native_files = true; 48 if (env.IsEmpty()) { 49 env = v8::Context::New(); 50 } 51 } 52 53 54 bool DisassembleAndCompare(byte* pc, const char* compare_string) { 55 disasm::NameConverter converter; 56 disasm::Disassembler disasm(converter); 57 EmbeddedVector<char, 128> disasm_buffer; 58 59 disasm.InstructionDecode(disasm_buffer, pc); 60 61 if (strcmp(compare_string, disasm_buffer.start()) != 0) { 62 fprintf(stderr, 63 "expected: \n" 64 "%s\n" 65 "disassembled: \n" 66 "%s\n\n", 67 compare_string, disasm_buffer.start()); 68 return false; 69 } 70 return true; 71 } 72 73 74 // Set up V8 to a state where we can at least run the assembler and 75 // disassembler. Declare the variables and allocate the data structures used 76 // in the rest of the macros. 77 #define SET_UP() \ 78 InitializeVM(); \ 79 v8::HandleScope scope; \ 80 byte *buffer = reinterpret_cast<byte*>(malloc(4*1024)); \ 81 Assembler assm(Isolate::Current(), buffer, 4*1024); \ 82 bool failure = false; 83 84 85 // This macro assembles one instruction using the preallocated assembler and 86 // disassembles the generated instruction, comparing the output to the expected 87 // value. If the comparison fails an error message is printed, but the test 88 // continues to run until the end. 89 #define COMPARE(asm_, compare_string) \ 90 { \ 91 int pc_offset = assm.pc_offset(); \ 92 byte *progcounter = &buffer[pc_offset]; \ 93 assm.asm_; \ 94 if (!DisassembleAndCompare(progcounter, compare_string)) failure = true; \ 95 } 96 97 98 // Verify that all invocations of the COMPARE macro passed successfully. 99 // Exit with a failure if at least one of the tests failed. 100 #define VERIFY_RUN() \ 101 if (failure) { \ 102 V8_Fatal(__FILE__, __LINE__, "MIPS Disassembler tests failed.\n"); \ 103 } 104 105 106 TEST(Type0) { 107 SET_UP(); 108 109 COMPARE(addu(a0, a1, a2), 110 "00a62021 addu a0, a1, a2"); 111 COMPARE(addu(t2, t3, t4), 112 "016c5021 addu t2, t3, t4"); 113 COMPARE(addu(v0, v1, s0), 114 "00701021 addu v0, v1, s0"); 115 116 COMPARE(subu(a0, a1, a2), 117 "00a62023 subu a0, a1, a2"); 118 COMPARE(subu(t2, t3, t4), 119 "016c5023 subu t2, t3, t4"); 120 COMPARE(subu(v0, v1, s0), 121 "00701023 subu v0, v1, s0"); 122 123 COMPARE(mult(a0, a1), 124 "00850018 mult a0, a1"); 125 COMPARE(mult(t2, t3), 126 "014b0018 mult t2, t3"); 127 COMPARE(mult(v0, v1), 128 "00430018 mult v0, v1"); 129 130 COMPARE(multu(a0, a1), 131 "00850019 multu a0, a1"); 132 COMPARE(multu(t2, t3), 133 "014b0019 multu t2, t3"); 134 COMPARE(multu(v0, v1), 135 "00430019 multu v0, v1"); 136 137 COMPARE(div(a0, a1), 138 "0085001a div a0, a1"); 139 COMPARE(div(t2, t3), 140 "014b001a div t2, t3"); 141 COMPARE(div(v0, v1), 142 "0043001a div v0, v1"); 143 144 COMPARE(divu(a0, a1), 145 "0085001b divu a0, a1"); 146 COMPARE(divu(t2, t3), 147 "014b001b divu t2, t3"); 148 COMPARE(divu(v0, v1), 149 "0043001b divu v0, v1"); 150 151 if (kArchVariant != kLoongson) { 152 COMPARE(mul(a0, a1, a2), 153 "70a62002 mul a0, a1, a2"); 154 COMPARE(mul(t2, t3, t4), 155 "716c5002 mul t2, t3, t4"); 156 COMPARE(mul(v0, v1, s0), 157 "70701002 mul v0, v1, s0"); 158 } 159 160 COMPARE(addiu(a0, a1, 0x0), 161 "24a40000 addiu a0, a1, 0"); 162 COMPARE(addiu(s0, s1, 32767), 163 "26307fff addiu s0, s1, 32767"); 164 COMPARE(addiu(t2, t3, -32768), 165 "256a8000 addiu t2, t3, -32768"); 166 COMPARE(addiu(v0, v1, -1), 167 "2462ffff addiu v0, v1, -1"); 168 169 COMPARE(and_(a0, a1, a2), 170 "00a62024 and a0, a1, a2"); 171 COMPARE(and_(s0, s1, s2), 172 "02328024 and s0, s1, s2"); 173 COMPARE(and_(t2, t3, t4), 174 "016c5024 and t2, t3, t4"); 175 COMPARE(and_(v0, v1, a2), 176 "00661024 and v0, v1, a2"); 177 178 COMPARE(or_(a0, a1, a2), 179 "00a62025 or a0, a1, a2"); 180 COMPARE(or_(s0, s1, s2), 181 "02328025 or s0, s1, s2"); 182 COMPARE(or_(t2, t3, t4), 183 "016c5025 or t2, t3, t4"); 184 COMPARE(or_(v0, v1, a2), 185 "00661025 or v0, v1, a2"); 186 187 COMPARE(xor_(a0, a1, a2), 188 "00a62026 xor a0, a1, a2"); 189 COMPARE(xor_(s0, s1, s2), 190 "02328026 xor s0, s1, s2"); 191 COMPARE(xor_(t2, t3, t4), 192 "016c5026 xor t2, t3, t4"); 193 COMPARE(xor_(v0, v1, a2), 194 "00661026 xor v0, v1, a2"); 195 196 COMPARE(nor(a0, a1, a2), 197 "00a62027 nor a0, a1, a2"); 198 COMPARE(nor(s0, s1, s2), 199 "02328027 nor s0, s1, s2"); 200 COMPARE(nor(t2, t3, t4), 201 "016c5027 nor t2, t3, t4"); 202 COMPARE(nor(v0, v1, a2), 203 "00661027 nor v0, v1, a2"); 204 205 COMPARE(andi(a0, a1, 0x1), 206 "30a40001 andi a0, a1, 0x1"); 207 COMPARE(andi(v0, v1, 0xffff), 208 "3062ffff andi v0, v1, 0xffff"); 209 210 COMPARE(ori(a0, a1, 0x1), 211 "34a40001 ori a0, a1, 0x1"); 212 COMPARE(ori(v0, v1, 0xffff), 213 "3462ffff ori v0, v1, 0xffff"); 214 215 COMPARE(xori(a0, a1, 0x1), 216 "38a40001 xori a0, a1, 0x1"); 217 COMPARE(xori(v0, v1, 0xffff), 218 "3862ffff xori v0, v1, 0xffff"); 219 220 COMPARE(lui(a0, 0x1), 221 "3c040001 lui a0, 0x1"); 222 COMPARE(lui(v0, 0xffff), 223 "3c02ffff lui v0, 0xffff"); 224 225 COMPARE(sll(a0, a1, 0), 226 "00052000 sll a0, a1, 0"); 227 COMPARE(sll(s0, s1, 8), 228 "00118200 sll s0, s1, 8"); 229 COMPARE(sll(t2, t3, 24), 230 "000b5600 sll t2, t3, 24"); 231 COMPARE(sll(v0, v1, 31), 232 "000317c0 sll v0, v1, 31"); 233 234 COMPARE(sllv(a0, a1, a2), 235 "00c52004 sllv a0, a1, a2"); 236 COMPARE(sllv(s0, s1, s2), 237 "02518004 sllv s0, s1, s2"); 238 COMPARE(sllv(t2, t3, t4), 239 "018b5004 sllv t2, t3, t4"); 240 COMPARE(sllv(v0, v1, fp), 241 "03c31004 sllv v0, v1, fp"); 242 243 COMPARE(srl(a0, a1, 0), 244 "00052002 srl a0, a1, 0"); 245 COMPARE(srl(s0, s1, 8), 246 "00118202 srl s0, s1, 8"); 247 COMPARE(srl(t2, t3, 24), 248 "000b5602 srl t2, t3, 24"); 249 COMPARE(srl(v0, v1, 31), 250 "000317c2 srl v0, v1, 31"); 251 252 COMPARE(srlv(a0, a1, a2), 253 "00c52006 srlv a0, a1, a2"); 254 COMPARE(srlv(s0, s1, s2), 255 "02518006 srlv s0, s1, s2"); 256 COMPARE(srlv(t2, t3, t4), 257 "018b5006 srlv t2, t3, t4"); 258 COMPARE(srlv(v0, v1, fp), 259 "03c31006 srlv v0, v1, fp"); 260 261 COMPARE(sra(a0, a1, 0), 262 "00052003 sra a0, a1, 0"); 263 COMPARE(sra(s0, s1, 8), 264 "00118203 sra s0, s1, 8"); 265 COMPARE(sra(t2, t3, 24), 266 "000b5603 sra t2, t3, 24"); 267 COMPARE(sra(v0, v1, 31), 268 "000317c3 sra v0, v1, 31"); 269 270 COMPARE(srav(a0, a1, a2), 271 "00c52007 srav a0, a1, a2"); 272 COMPARE(srav(s0, s1, s2), 273 "02518007 srav s0, s1, s2"); 274 COMPARE(srav(t2, t3, t4), 275 "018b5007 srav t2, t3, t4"); 276 COMPARE(srav(v0, v1, fp), 277 "03c31007 srav v0, v1, fp"); 278 279 if (kArchVariant == kMips32r2) { 280 COMPARE(rotr(a0, a1, 0), 281 "00252002 rotr a0, a1, 0"); 282 COMPARE(rotr(s0, s1, 8), 283 "00318202 rotr s0, s1, 8"); 284 COMPARE(rotr(t2, t3, 24), 285 "002b5602 rotr t2, t3, 24"); 286 COMPARE(rotr(v0, v1, 31), 287 "002317c2 rotr v0, v1, 31"); 288 289 COMPARE(rotrv(a0, a1, a2), 290 "00c52046 rotrv a0, a1, a2"); 291 COMPARE(rotrv(s0, s1, s2), 292 "02518046 rotrv s0, s1, s2"); 293 COMPARE(rotrv(t2, t3, t4), 294 "018b5046 rotrv t2, t3, t4"); 295 COMPARE(rotrv(v0, v1, fp), 296 "03c31046 rotrv v0, v1, fp"); 297 } 298 299 COMPARE(break_(0), 300 "0000000d break, code: 0x00000 (0)"); 301 COMPARE(break_(261120), 302 "00ff000d break, code: 0x3fc00 (261120)"); 303 COMPARE(break_(1047552), 304 "03ff000d break, code: 0xffc00 (1047552)"); 305 306 COMPARE(tge(a0, a1, 0), 307 "00850030 tge a0, a1, code: 0x000"); 308 COMPARE(tge(s0, s1, 1023), 309 "0211fff0 tge s0, s1, code: 0x3ff"); 310 COMPARE(tgeu(a0, a1, 0), 311 "00850031 tgeu a0, a1, code: 0x000"); 312 COMPARE(tgeu(s0, s1, 1023), 313 "0211fff1 tgeu s0, s1, code: 0x3ff"); 314 COMPARE(tlt(a0, a1, 0), 315 "00850032 tlt a0, a1, code: 0x000"); 316 COMPARE(tlt(s0, s1, 1023), 317 "0211fff2 tlt s0, s1, code: 0x3ff"); 318 COMPARE(tltu(a0, a1, 0), 319 "00850033 tltu a0, a1, code: 0x000"); 320 COMPARE(tltu(s0, s1, 1023), 321 "0211fff3 tltu s0, s1, code: 0x3ff"); 322 COMPARE(teq(a0, a1, 0), 323 "00850034 teq a0, a1, code: 0x000"); 324 COMPARE(teq(s0, s1, 1023), 325 "0211fff4 teq s0, s1, code: 0x3ff"); 326 COMPARE(tne(a0, a1, 0), 327 "00850036 tne a0, a1, code: 0x000"); 328 COMPARE(tne(s0, s1, 1023), 329 "0211fff6 tne s0, s1, code: 0x3ff"); 330 331 COMPARE(mfhi(a0), 332 "00002010 mfhi a0"); 333 COMPARE(mfhi(s2), 334 "00009010 mfhi s2"); 335 COMPARE(mfhi(t4), 336 "00006010 mfhi t4"); 337 COMPARE(mfhi(v1), 338 "00001810 mfhi v1"); 339 COMPARE(mflo(a0), 340 "00002012 mflo a0"); 341 COMPARE(mflo(s2), 342 "00009012 mflo s2"); 343 COMPARE(mflo(t4), 344 "00006012 mflo t4"); 345 COMPARE(mflo(v1), 346 "00001812 mflo v1"); 347 348 COMPARE(slt(a0, a1, a2), 349 "00a6202a slt a0, a1, a2"); 350 COMPARE(slt(s0, s1, s2), 351 "0232802a slt s0, s1, s2"); 352 COMPARE(slt(t2, t3, t4), 353 "016c502a slt t2, t3, t4"); 354 COMPARE(slt(v0, v1, a2), 355 "0066102a slt v0, v1, a2"); 356 COMPARE(sltu(a0, a1, a2), 357 "00a6202b sltu a0, a1, a2"); 358 COMPARE(sltu(s0, s1, s2), 359 "0232802b sltu s0, s1, s2"); 360 COMPARE(sltu(t2, t3, t4), 361 "016c502b sltu t2, t3, t4"); 362 COMPARE(sltu(v0, v1, a2), 363 "0066102b sltu v0, v1, a2"); 364 365 COMPARE(slti(a0, a1, 0), 366 "28a40000 slti a0, a1, 0"); 367 COMPARE(slti(s0, s1, 32767), 368 "2a307fff slti s0, s1, 32767"); 369 COMPARE(slti(t2, t3, -32768), 370 "296a8000 slti t2, t3, -32768"); 371 COMPARE(slti(v0, v1, -1), 372 "2862ffff slti v0, v1, -1"); 373 COMPARE(sltiu(a0, a1, 0), 374 "2ca40000 sltiu a0, a1, 0"); 375 COMPARE(sltiu(s0, s1, 32767), 376 "2e307fff sltiu s0, s1, 32767"); 377 COMPARE(sltiu(t2, t3, -32768), 378 "2d6a8000 sltiu t2, t3, -32768"); 379 COMPARE(sltiu(v0, v1, -1), 380 "2c62ffff sltiu v0, v1, -1"); 381 382 if (kArchVariant != kLoongson) { 383 COMPARE(movz(a0, a1, a2), 384 "00a6200a movz a0, a1, a2"); 385 COMPARE(movz(s0, s1, s2), 386 "0232800a movz s0, s1, s2"); 387 COMPARE(movz(t2, t3, t4), 388 "016c500a movz t2, t3, t4"); 389 COMPARE(movz(v0, v1, a2), 390 "0066100a movz v0, v1, a2"); 391 COMPARE(movn(a0, a1, a2), 392 "00a6200b movn a0, a1, a2"); 393 COMPARE(movn(s0, s1, s2), 394 "0232800b movn s0, s1, s2"); 395 COMPARE(movn(t2, t3, t4), 396 "016c500b movn t2, t3, t4"); 397 COMPARE(movn(v0, v1, a2), 398 "0066100b movn v0, v1, a2"); 399 400 COMPARE(movt(a0, a1, 1), 401 "00a52001 movt a0, a1, 1"); 402 COMPARE(movt(s0, s1, 2), 403 "02298001 movt s0, s1, 2"); 404 COMPARE(movt(t2, t3, 3), 405 "016d5001 movt t2, t3, 3"); 406 COMPARE(movt(v0, v1, 7), 407 "007d1001 movt v0, v1, 7"); 408 COMPARE(movf(a0, a1, 0), 409 "00a02001 movf a0, a1, 0"); 410 COMPARE(movf(s0, s1, 4), 411 "02308001 movf s0, s1, 4"); 412 COMPARE(movf(t2, t3, 5), 413 "01745001 movf t2, t3, 5"); 414 COMPARE(movf(v0, v1, 6), 415 "00781001 movf v0, v1, 6"); 416 417 COMPARE(clz(a0, a1), 418 "70a42020 clz a0, a1"); 419 COMPARE(clz(s6, s7), 420 "72f6b020 clz s6, s7"); 421 COMPARE(clz(v0, v1), 422 "70621020 clz v0, v1"); 423 } 424 425 if (kArchVariant == kMips32r2) { 426 COMPARE(ins_(a0, a1, 31, 1), 427 "7ca4ffc4 ins a0, a1, 31, 1"); 428 COMPARE(ins_(s6, s7, 30, 2), 429 "7ef6ff84 ins s6, s7, 30, 2"); 430 COMPARE(ins_(v0, v1, 0, 32), 431 "7c62f804 ins v0, v1, 0, 32"); 432 COMPARE(ext_(a0, a1, 31, 1), 433 "7ca407c0 ext a0, a1, 31, 1"); 434 COMPARE(ext_(s6, s7, 30, 2), 435 "7ef60f80 ext s6, s7, 30, 2"); 436 COMPARE(ext_(v0, v1, 0, 32), 437 "7c62f800 ext v0, v1, 0, 32"); 438 } 439 440 VERIFY_RUN(); 441 } 442
