Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 1 | // Copyright 2011 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 | // Setup 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 SETUP() \ |
| 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 | SETUP(); |
| 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 | COMPARE(mul(a0, a1, a2), |
| 152 | "70a62002 mul a0, a1, a2"); |
| 153 | COMPARE(mul(t2, t3, t4), |
| 154 | "716c5002 mul t2, t3, t4"); |
| 155 | COMPARE(mul(v0, v1, s0), |
| 156 | "70701002 mul v0, v1, s0"); |
| 157 | |
| 158 | COMPARE(addiu(a0, a1, 0x0), |
| 159 | "24a40000 addiu a0, a1, 0"); |
| 160 | COMPARE(addiu(s0, s1, 32767), |
| 161 | "26307fff addiu s0, s1, 32767"); |
| 162 | COMPARE(addiu(t2, t3, -32768), |
| 163 | "256a8000 addiu t2, t3, -32768"); |
| 164 | COMPARE(addiu(v0, v1, -1), |
| 165 | "2462ffff addiu v0, v1, -1"); |
| 166 | |
| 167 | COMPARE(and_(a0, a1, a2), |
| 168 | "00a62024 and a0, a1, a2"); |
| 169 | COMPARE(and_(s0, s1, s2), |
| 170 | "02328024 and s0, s1, s2"); |
| 171 | COMPARE(and_(t2, t3, t4), |
| 172 | "016c5024 and t2, t3, t4"); |
| 173 | COMPARE(and_(v0, v1, a2), |
| 174 | "00661024 and v0, v1, a2"); |
| 175 | |
| 176 | COMPARE(or_(a0, a1, a2), |
| 177 | "00a62025 or a0, a1, a2"); |
| 178 | COMPARE(or_(s0, s1, s2), |
| 179 | "02328025 or s0, s1, s2"); |
| 180 | COMPARE(or_(t2, t3, t4), |
| 181 | "016c5025 or t2, t3, t4"); |
| 182 | COMPARE(or_(v0, v1, a2), |
| 183 | "00661025 or v0, v1, a2"); |
| 184 | |
| 185 | COMPARE(xor_(a0, a1, a2), |
| 186 | "00a62026 xor a0, a1, a2"); |
| 187 | COMPARE(xor_(s0, s1, s2), |
| 188 | "02328026 xor s0, s1, s2"); |
| 189 | COMPARE(xor_(t2, t3, t4), |
| 190 | "016c5026 xor t2, t3, t4"); |
| 191 | COMPARE(xor_(v0, v1, a2), |
| 192 | "00661026 xor v0, v1, a2"); |
| 193 | |
| 194 | COMPARE(nor(a0, a1, a2), |
| 195 | "00a62027 nor a0, a1, a2"); |
| 196 | COMPARE(nor(s0, s1, s2), |
| 197 | "02328027 nor s0, s1, s2"); |
| 198 | COMPARE(nor(t2, t3, t4), |
| 199 | "016c5027 nor t2, t3, t4"); |
| 200 | COMPARE(nor(v0, v1, a2), |
| 201 | "00661027 nor v0, v1, a2"); |
| 202 | |
| 203 | COMPARE(andi(a0, a1, 0x1), |
| 204 | "30a40001 andi a0, a1, 0x1"); |
| 205 | COMPARE(andi(v0, v1, 0xffff), |
| 206 | "3062ffff andi v0, v1, 0xffff"); |
| 207 | |
| 208 | COMPARE(ori(a0, a1, 0x1), |
| 209 | "34a40001 ori a0, a1, 0x1"); |
| 210 | COMPARE(ori(v0, v1, 0xffff), |
| 211 | "3462ffff ori v0, v1, 0xffff"); |
| 212 | |
| 213 | COMPARE(xori(a0, a1, 0x1), |
| 214 | "38a40001 xori a0, a1, 0x1"); |
| 215 | COMPARE(xori(v0, v1, 0xffff), |
| 216 | "3862ffff xori v0, v1, 0xffff"); |
| 217 | |
| 218 | COMPARE(lui(a0, 0x1), |
| 219 | "3c040001 lui a0, 0x1"); |
| 220 | COMPARE(lui(v0, 0xffff), |
| 221 | "3c02ffff lui v0, 0xffff"); |
| 222 | |
| 223 | COMPARE(sll(a0, a1, 0), |
| 224 | "00052000 sll a0, a1, 0"); |
| 225 | COMPARE(sll(s0, s1, 8), |
| 226 | "00118200 sll s0, s1, 8"); |
| 227 | COMPARE(sll(t2, t3, 24), |
| 228 | "000b5600 sll t2, t3, 24"); |
| 229 | COMPARE(sll(v0, v1, 31), |
| 230 | "000317c0 sll v0, v1, 31"); |
| 231 | |
| 232 | COMPARE(sllv(a0, a1, a2), |
| 233 | "00c52004 sllv a0, a1, a2"); |
| 234 | COMPARE(sllv(s0, s1, s2), |
| 235 | "02518004 sllv s0, s1, s2"); |
| 236 | COMPARE(sllv(t2, t3, t4), |
| 237 | "018b5004 sllv t2, t3, t4"); |
| 238 | COMPARE(sllv(v0, v1, fp), |
| 239 | "03c31004 sllv v0, v1, fp"); |
| 240 | |
| 241 | COMPARE(srl(a0, a1, 0), |
| 242 | "00052002 srl a0, a1, 0"); |
| 243 | COMPARE(srl(s0, s1, 8), |
| 244 | "00118202 srl s0, s1, 8"); |
| 245 | COMPARE(srl(t2, t3, 24), |
| 246 | "000b5602 srl t2, t3, 24"); |
| 247 | COMPARE(srl(v0, v1, 31), |
| 248 | "000317c2 srl v0, v1, 31"); |
| 249 | |
| 250 | COMPARE(srlv(a0, a1, a2), |
| 251 | "00c52006 srlv a0, a1, a2"); |
| 252 | COMPARE(srlv(s0, s1, s2), |
| 253 | "02518006 srlv s0, s1, s2"); |
| 254 | COMPARE(srlv(t2, t3, t4), |
| 255 | "018b5006 srlv t2, t3, t4"); |
| 256 | COMPARE(srlv(v0, v1, fp), |
| 257 | "03c31006 srlv v0, v1, fp"); |
| 258 | |
| 259 | COMPARE(sra(a0, a1, 0), |
| 260 | "00052003 sra a0, a1, 0"); |
| 261 | COMPARE(sra(s0, s1, 8), |
| 262 | "00118203 sra s0, s1, 8"); |
| 263 | COMPARE(sra(t2, t3, 24), |
| 264 | "000b5603 sra t2, t3, 24"); |
| 265 | COMPARE(sra(v0, v1, 31), |
| 266 | "000317c3 sra v0, v1, 31"); |
| 267 | |
| 268 | COMPARE(srav(a0, a1, a2), |
| 269 | "00c52007 srav a0, a1, a2"); |
| 270 | COMPARE(srav(s0, s1, s2), |
| 271 | "02518007 srav s0, s1, s2"); |
| 272 | COMPARE(srav(t2, t3, t4), |
| 273 | "018b5007 srav t2, t3, t4"); |
| 274 | COMPARE(srav(v0, v1, fp), |
| 275 | "03c31007 srav v0, v1, fp"); |
| 276 | |
Ben Murdoch | 589d697 | 2011-11-30 16:04:58 +0000 | [diff] [blame^] | 277 | if (mips32r2) { |
| 278 | COMPARE(rotr(a0, a1, 0), |
| 279 | "00252002 rotr a0, a1, 0"); |
| 280 | COMPARE(rotr(s0, s1, 8), |
| 281 | "00318202 rotr s0, s1, 8"); |
| 282 | COMPARE(rotr(t2, t3, 24), |
| 283 | "002b5602 rotr t2, t3, 24"); |
| 284 | COMPARE(rotr(v0, v1, 31), |
| 285 | "002317c2 rotr v0, v1, 31"); |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 286 | |
Ben Murdoch | 589d697 | 2011-11-30 16:04:58 +0000 | [diff] [blame^] | 287 | COMPARE(rotrv(a0, a1, a2), |
| 288 | "00c52046 rotrv a0, a1, a2"); |
| 289 | COMPARE(rotrv(s0, s1, s2), |
| 290 | "02518046 rotrv s0, s1, s2"); |
| 291 | COMPARE(rotrv(t2, t3, t4), |
| 292 | "018b5046 rotrv t2, t3, t4"); |
| 293 | COMPARE(rotrv(v0, v1, fp), |
| 294 | "03c31046 rotrv v0, v1, fp"); |
| 295 | } |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 296 | |
| 297 | COMPARE(break_(0), |
| 298 | "0000000d break, code: 0x00000 (0)"); |
| 299 | COMPARE(break_(261120), |
| 300 | "00ff000d break, code: 0x3fc00 (261120)"); |
| 301 | COMPARE(break_(1047552), |
| 302 | "03ff000d break, code: 0xffc00 (1047552)"); |
| 303 | |
| 304 | COMPARE(tge(a0, a1, 0), |
| 305 | "00850030 tge a0, a1, code: 0x000"); |
| 306 | COMPARE(tge(s0, s1, 1023), |
| 307 | "0211fff0 tge s0, s1, code: 0x3ff"); |
| 308 | COMPARE(tgeu(a0, a1, 0), |
| 309 | "00850031 tgeu a0, a1, code: 0x000"); |
| 310 | COMPARE(tgeu(s0, s1, 1023), |
| 311 | "0211fff1 tgeu s0, s1, code: 0x3ff"); |
| 312 | COMPARE(tlt(a0, a1, 0), |
| 313 | "00850032 tlt a0, a1, code: 0x000"); |
| 314 | COMPARE(tlt(s0, s1, 1023), |
| 315 | "0211fff2 tlt s0, s1, code: 0x3ff"); |
| 316 | COMPARE(tltu(a0, a1, 0), |
| 317 | "00850033 tltu a0, a1, code: 0x000"); |
| 318 | COMPARE(tltu(s0, s1, 1023), |
| 319 | "0211fff3 tltu s0, s1, code: 0x3ff"); |
| 320 | COMPARE(teq(a0, a1, 0), |
| 321 | "00850034 teq a0, a1, code: 0x000"); |
| 322 | COMPARE(teq(s0, s1, 1023), |
| 323 | "0211fff4 teq s0, s1, code: 0x3ff"); |
| 324 | COMPARE(tne(a0, a1, 0), |
| 325 | "00850036 tne a0, a1, code: 0x000"); |
| 326 | COMPARE(tne(s0, s1, 1023), |
| 327 | "0211fff6 tne s0, s1, code: 0x3ff"); |
| 328 | |
| 329 | COMPARE(mfhi(a0), |
| 330 | "00002010 mfhi a0"); |
| 331 | COMPARE(mfhi(s2), |
| 332 | "00009010 mfhi s2"); |
| 333 | COMPARE(mfhi(t4), |
| 334 | "00006010 mfhi t4"); |
| 335 | COMPARE(mfhi(v1), |
| 336 | "00001810 mfhi v1"); |
| 337 | COMPARE(mflo(a0), |
| 338 | "00002012 mflo a0"); |
| 339 | COMPARE(mflo(s2), |
| 340 | "00009012 mflo s2"); |
| 341 | COMPARE(mflo(t4), |
| 342 | "00006012 mflo t4"); |
| 343 | COMPARE(mflo(v1), |
| 344 | "00001812 mflo v1"); |
| 345 | |
| 346 | COMPARE(slt(a0, a1, a2), |
| 347 | "00a6202a slt a0, a1, a2"); |
| 348 | COMPARE(slt(s0, s1, s2), |
| 349 | "0232802a slt s0, s1, s2"); |
| 350 | COMPARE(slt(t2, t3, t4), |
| 351 | "016c502a slt t2, t3, t4"); |
| 352 | COMPARE(slt(v0, v1, a2), |
| 353 | "0066102a slt v0, v1, a2"); |
| 354 | COMPARE(sltu(a0, a1, a2), |
| 355 | "00a6202b sltu a0, a1, a2"); |
| 356 | COMPARE(sltu(s0, s1, s2), |
| 357 | "0232802b sltu s0, s1, s2"); |
| 358 | COMPARE(sltu(t2, t3, t4), |
| 359 | "016c502b sltu t2, t3, t4"); |
| 360 | COMPARE(sltu(v0, v1, a2), |
| 361 | "0066102b sltu v0, v1, a2"); |
| 362 | |
| 363 | COMPARE(slti(a0, a1, 0), |
| 364 | "28a40000 slti a0, a1, 0"); |
| 365 | COMPARE(slti(s0, s1, 32767), |
| 366 | "2a307fff slti s0, s1, 32767"); |
| 367 | COMPARE(slti(t2, t3, -32768), |
| 368 | "296a8000 slti t2, t3, -32768"); |
| 369 | COMPARE(slti(v0, v1, -1), |
| 370 | "2862ffff slti v0, v1, -1"); |
| 371 | COMPARE(sltiu(a0, a1, 0), |
| 372 | "2ca40000 sltiu a0, a1, 0"); |
| 373 | COMPARE(sltiu(s0, s1, 32767), |
| 374 | "2e307fff sltiu s0, s1, 32767"); |
| 375 | COMPARE(sltiu(t2, t3, -32768), |
| 376 | "2d6a8000 sltiu t2, t3, -32768"); |
| 377 | COMPARE(sltiu(v0, v1, -1), |
| 378 | "2c62ffff sltiu v0, v1, -1"); |
| 379 | |
| 380 | COMPARE(movz(a0, a1, a2), |
| 381 | "00a6200a movz a0, a1, a2"); |
| 382 | COMPARE(movz(s0, s1, s2), |
| 383 | "0232800a movz s0, s1, s2"); |
| 384 | COMPARE(movz(t2, t3, t4), |
| 385 | "016c500a movz t2, t3, t4"); |
| 386 | COMPARE(movz(v0, v1, a2), |
| 387 | "0066100a movz v0, v1, a2"); |
| 388 | COMPARE(movn(a0, a1, a2), |
| 389 | "00a6200b movn a0, a1, a2"); |
| 390 | COMPARE(movn(s0, s1, s2), |
| 391 | "0232800b movn s0, s1, s2"); |
| 392 | COMPARE(movn(t2, t3, t4), |
| 393 | "016c500b movn t2, t3, t4"); |
| 394 | COMPARE(movn(v0, v1, a2), |
| 395 | "0066100b movn v0, v1, a2"); |
| 396 | |
| 397 | COMPARE(movt(a0, a1, 1), |
| 398 | "00a52001 movt a0, a1, 1"); |
| 399 | COMPARE(movt(s0, s1, 2), |
| 400 | "02298001 movt s0, s1, 2"); |
| 401 | COMPARE(movt(t2, t3, 3), |
| 402 | "016d5001 movt t2, t3, 3"); |
| 403 | COMPARE(movt(v0, v1, 7), |
| 404 | "007d1001 movt v0, v1, 7"); |
| 405 | COMPARE(movf(a0, a1, 0), |
| 406 | "00a02001 movf a0, a1, 0"); |
| 407 | COMPARE(movf(s0, s1, 4), |
| 408 | "02308001 movf s0, s1, 4"); |
| 409 | COMPARE(movf(t2, t3, 5), |
| 410 | "01745001 movf t2, t3, 5"); |
| 411 | COMPARE(movf(v0, v1, 6), |
| 412 | "00781001 movf v0, v1, 6"); |
| 413 | |
| 414 | COMPARE(clz(a0, a1), |
| 415 | "70a42020 clz a0, a1"); |
| 416 | COMPARE(clz(s6, s7), |
| 417 | "72f6b020 clz s6, s7"); |
| 418 | COMPARE(clz(v0, v1), |
| 419 | "70621020 clz v0, v1"); |
Ben Murdoch | 589d697 | 2011-11-30 16:04:58 +0000 | [diff] [blame^] | 420 | |
| 421 | if (mips32r2) { |
| 422 | COMPARE(ins_(a0, a1, 31, 1), |
| 423 | "7ca4ffc4 ins a0, a1, 31, 1"); |
| 424 | COMPARE(ins_(s6, s7, 30, 2), |
| 425 | "7ef6ff84 ins s6, s7, 30, 2"); |
| 426 | COMPARE(ins_(v0, v1, 0, 32), |
| 427 | "7c62f804 ins v0, v1, 0, 32"); |
| 428 | COMPARE(ext_(a0, a1, 31, 1), |
| 429 | "7ca407c0 ext a0, a1, 31, 1"); |
| 430 | COMPARE(ext_(s6, s7, 30, 2), |
| 431 | "7ef60f80 ext s6, s7, 30, 2"); |
| 432 | COMPARE(ext_(v0, v1, 0, 32), |
| 433 | "7c62f800 ext v0, v1, 0, 32"); |
| 434 | } |
Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 435 | |
| 436 | VERIFY_RUN(); |
| 437 | } |