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 #include <stdlib.h> 29 30 #include "v8.h" 31 32 #include "debug.h" 33 #include "disasm.h" 34 #include "disassembler.h" 35 #include "macro-assembler.h" 36 #include "serialize.h" 37 #include "cctest.h" 38 39 using namespace v8::internal; 40 41 static v8::Persistent<v8::Context> env; 42 43 static void InitializeVM() { 44 if (env.IsEmpty()) { 45 env = v8::Context::New(); 46 } 47 } 48 49 50 #define __ assm. 51 52 53 static void DummyStaticFunction(Object* result) { 54 } 55 56 57 TEST(DisasmIa320) { 58 InitializeVM(); 59 v8::HandleScope scope; 60 v8::internal::byte buffer[2048]; 61 Assembler assm(Isolate::Current(), buffer, sizeof buffer); 62 DummyStaticFunction(NULL); // just bloody use it (DELETE; debugging) 63 64 // Short immediate instructions 65 __ adc(eax, 12345678); 66 __ add(eax, Immediate(12345678)); 67 __ or_(eax, 12345678); 68 __ sub(eax, Immediate(12345678)); 69 __ xor_(eax, 12345678); 70 __ and_(eax, 12345678); 71 Handle<FixedArray> foo = FACTORY->NewFixedArray(10, TENURED); 72 __ cmp(eax, foo); 73 74 // ---- This one caused crash 75 __ mov(ebx, Operand(esp, ecx, times_2, 0)); // [esp+ecx*4] 76 77 // ---- All instructions that I can think of 78 __ add(edx, ebx); 79 __ add(edx, Operand(12, RelocInfo::NONE)); 80 __ add(edx, Operand(ebx, 0)); 81 __ add(edx, Operand(ebx, 16)); 82 __ add(edx, Operand(ebx, 1999)); 83 __ add(edx, Operand(esp, 0)); 84 __ add(edx, Operand(esp, 16)); 85 __ add(edx, Operand(esp, 1999)); 86 __ nop(); 87 __ add(edi, Operand(ebp, ecx, times_4, 0)); 88 __ add(edi, Operand(ebp, ecx, times_4, 12)); 89 __ add(Operand(ebp, ecx, times_4, 12), Immediate(12)); 90 91 __ nop(); 92 __ add(ebx, Immediate(12)); 93 __ nop(); 94 __ adc(ecx, 12); 95 __ adc(ecx, 1000); 96 __ nop(); 97 __ and_(edx, 3); 98 __ and_(edx, Operand(esp, 4)); 99 __ cmp(edx, 3); 100 __ cmp(edx, Operand(esp, 4)); 101 __ cmp(Operand(ebp, ecx, times_4, 0), Immediate(1000)); 102 Handle<FixedArray> foo2 = FACTORY->NewFixedArray(10, TENURED); 103 __ cmp(ebx, foo2); 104 __ cmpb(ebx, Operand(ebp, ecx, times_2, 0)); 105 __ cmpb(Operand(ebp, ecx, times_2, 0), ebx); 106 __ or_(edx, 3); 107 __ xor_(edx, 3); 108 __ nop(); 109 { 110 CHECK(CpuFeatures::IsSupported(CPUID)); 111 CpuFeatures::Scope fscope(CPUID); 112 __ cpuid(); 113 } 114 { 115 CHECK(CpuFeatures::IsSupported(RDTSC)); 116 CpuFeatures::Scope fscope(RDTSC); 117 __ rdtsc(); 118 } 119 __ movsx_b(edx, ecx); 120 __ movsx_w(edx, ecx); 121 __ movzx_b(edx, ecx); 122 __ movzx_w(edx, ecx); 123 124 __ nop(); 125 __ imul(edx, ecx); 126 __ shld(edx, ecx); 127 __ shrd(edx, ecx); 128 __ bts(edx, ecx); 129 __ bts(Operand(ebx, ecx, times_4, 0), ecx); 130 __ nop(); 131 __ pushad(); 132 __ popad(); 133 __ pushfd(); 134 __ popfd(); 135 __ push(Immediate(12)); 136 __ push(Immediate(23456)); 137 __ push(ecx); 138 __ push(esi); 139 __ push(Operand(ebp, JavaScriptFrameConstants::kFunctionOffset)); 140 __ push(Operand(ebx, ecx, times_4, 0)); 141 __ push(Operand(ebx, ecx, times_4, 0)); 142 __ push(Operand(ebx, ecx, times_4, 10000)); 143 __ pop(edx); 144 __ pop(eax); 145 __ pop(Operand(ebx, ecx, times_4, 0)); 146 __ nop(); 147 148 __ add(edx, Operand(esp, 16)); 149 __ add(edx, ecx); 150 __ mov_b(edx, ecx); 151 __ mov_b(ecx, 6); 152 __ mov_b(Operand(ebx, ecx, times_4, 10000), 6); 153 __ mov_b(Operand(esp, 16), edx); 154 __ mov_w(edx, Operand(esp, 16)); 155 __ mov_w(Operand(esp, 16), edx); 156 __ nop(); 157 __ movsx_w(edx, Operand(esp, 12)); 158 __ movsx_b(edx, Operand(esp, 12)); 159 __ movzx_w(edx, Operand(esp, 12)); 160 __ movzx_b(edx, Operand(esp, 12)); 161 __ nop(); 162 __ mov(edx, 1234567); 163 __ mov(edx, Operand(esp, 12)); 164 __ mov(Operand(ebx, ecx, times_4, 10000), Immediate(12345)); 165 __ mov(Operand(ebx, ecx, times_4, 10000), edx); 166 __ nop(); 167 __ dec_b(edx); 168 __ dec_b(Operand(eax, 10)); 169 __ dec_b(Operand(ebx, ecx, times_4, 10000)); 170 __ dec(edx); 171 __ cdq(); 172 173 __ nop(); 174 __ idiv(edx); 175 __ mul(edx); 176 __ neg(edx); 177 __ not_(edx); 178 __ test(Operand(ebx, ecx, times_4, 10000), Immediate(123456)); 179 180 __ imul(edx, Operand(ebx, ecx, times_4, 10000)); 181 __ imul(edx, ecx, 12); 182 __ imul(edx, ecx, 1000); 183 184 __ inc(edx); 185 __ inc(Operand(ebx, ecx, times_4, 10000)); 186 __ push(Operand(ebx, ecx, times_4, 10000)); 187 __ pop(Operand(ebx, ecx, times_4, 10000)); 188 __ call(Operand(ebx, ecx, times_4, 10000)); 189 __ jmp(Operand(ebx, ecx, times_4, 10000)); 190 191 __ lea(edx, Operand(ebx, ecx, times_4, 10000)); 192 __ or_(edx, 12345); 193 __ or_(edx, Operand(ebx, ecx, times_4, 10000)); 194 195 __ nop(); 196 197 __ rcl(edx, 1); 198 __ rcl(edx, 7); 199 __ rcr(edx, 1); 200 __ rcr(edx, 7); 201 __ sar(edx, 1); 202 __ sar(edx, 6); 203 __ sar_cl(edx); 204 __ sbb(edx, Operand(ebx, ecx, times_4, 10000)); 205 __ shld(edx, Operand(ebx, ecx, times_4, 10000)); 206 __ shl(edx, 1); 207 __ shl(edx, 6); 208 __ shl_cl(edx); 209 __ shrd(edx, Operand(ebx, ecx, times_4, 10000)); 210 __ shr(edx, 1); 211 __ shr(edx, 7); 212 __ shr_cl(edx); 213 214 215 // Immediates 216 217 __ adc(edx, 12345); 218 219 __ add(ebx, Immediate(12)); 220 __ add(Operand(edx, ecx, times_4, 10000), Immediate(12)); 221 222 __ and_(ebx, 12345); 223 224 __ cmp(ebx, 12345); 225 __ cmp(ebx, Immediate(12)); 226 __ cmp(Operand(edx, ecx, times_4, 10000), Immediate(12)); 227 __ cmpb(eax, 100); 228 229 __ or_(ebx, 12345); 230 231 __ sub(ebx, Immediate(12)); 232 __ sub(Operand(edx, ecx, times_4, 10000), Immediate(12)); 233 234 __ xor_(ebx, 12345); 235 236 __ imul(edx, ecx, 12); 237 __ imul(edx, ecx, 1000); 238 239 __ cld(); 240 __ rep_movs(); 241 __ rep_stos(); 242 __ stos(); 243 244 __ sub(edx, Operand(ebx, ecx, times_4, 10000)); 245 __ sub(edx, ebx); 246 247 __ test(edx, Immediate(12345)); 248 __ test(edx, Operand(ebx, ecx, times_8, 10000)); 249 __ test(Operand(esi, edi, times_1, -20000000), Immediate(300000000)); 250 __ test_b(edx, Operand(ecx, ebx, times_2, 1000)); 251 __ test_b(Operand(eax, -20), 0x9A); 252 __ nop(); 253 254 __ xor_(edx, 12345); 255 __ xor_(edx, Operand(ebx, ecx, times_8, 10000)); 256 __ bts(Operand(ebx, ecx, times_8, 10000), edx); 257 __ hlt(); 258 __ int3(); 259 __ ret(0); 260 __ ret(8); 261 262 // Calls 263 264 Label L1, L2; 265 __ bind(&L1); 266 __ nop(); 267 __ call(&L1); 268 __ call(&L2); 269 __ nop(); 270 __ bind(&L2); 271 __ call(Operand(ebx, ecx, times_4, 10000)); 272 __ nop(); 273 Handle<Code> ic(Isolate::Current()->builtins()->builtin( 274 Builtins::kLoadIC_Initialize)); 275 __ call(ic, RelocInfo::CODE_TARGET); 276 __ nop(); 277 __ call(FUNCTION_ADDR(DummyStaticFunction), RelocInfo::RUNTIME_ENTRY); 278 __ nop(); 279 280 __ jmp(&L1); 281 __ jmp(Operand(ebx, ecx, times_4, 10000)); 282 #ifdef ENABLE_DEBUGGER_SUPPORT 283 ExternalReference after_break_target = 284 ExternalReference(Debug_Address::AfterBreakTarget(), 285 assm.isolate()); 286 __ jmp(Operand::StaticVariable(after_break_target)); 287 #endif // ENABLE_DEBUGGER_SUPPORT 288 __ jmp(ic, RelocInfo::CODE_TARGET); 289 __ nop(); 290 291 292 Label Ljcc; 293 __ nop(); 294 // long jumps 295 __ j(overflow, &Ljcc); 296 __ j(no_overflow, &Ljcc); 297 __ j(below, &Ljcc); 298 __ j(above_equal, &Ljcc); 299 __ j(equal, &Ljcc); 300 __ j(not_equal, &Ljcc); 301 __ j(below_equal, &Ljcc); 302 __ j(above, &Ljcc); 303 __ j(sign, &Ljcc); 304 __ j(not_sign, &Ljcc); 305 __ j(parity_even, &Ljcc); 306 __ j(parity_odd, &Ljcc); 307 __ j(less, &Ljcc); 308 __ j(greater_equal, &Ljcc); 309 __ j(less_equal, &Ljcc); 310 __ j(greater, &Ljcc); 311 __ nop(); 312 __ bind(&Ljcc); 313 // short jumps 314 __ j(overflow, &Ljcc); 315 __ j(no_overflow, &Ljcc); 316 __ j(below, &Ljcc); 317 __ j(above_equal, &Ljcc); 318 __ j(equal, &Ljcc); 319 __ j(not_equal, &Ljcc); 320 __ j(below_equal, &Ljcc); 321 __ j(above, &Ljcc); 322 __ j(sign, &Ljcc); 323 __ j(not_sign, &Ljcc); 324 __ j(parity_even, &Ljcc); 325 __ j(parity_odd, &Ljcc); 326 __ j(less, &Ljcc); 327 __ j(greater_equal, &Ljcc); 328 __ j(less_equal, &Ljcc); 329 __ j(greater, &Ljcc); 330 331 // 0xD9 instructions 332 __ nop(); 333 334 __ fld(1); 335 __ fld1(); 336 __ fldz(); 337 __ fldpi(); 338 __ fabs(); 339 __ fchs(); 340 __ fprem(); 341 __ fprem1(); 342 __ fincstp(); 343 __ ftst(); 344 __ fxch(3); 345 __ fld_s(Operand(ebx, ecx, times_4, 10000)); 346 __ fstp_s(Operand(ebx, ecx, times_4, 10000)); 347 __ ffree(3); 348 __ fld_d(Operand(ebx, ecx, times_4, 10000)); 349 __ fstp_d(Operand(ebx, ecx, times_4, 10000)); 350 __ nop(); 351 352 __ fild_s(Operand(ebx, ecx, times_4, 10000)); 353 __ fistp_s(Operand(ebx, ecx, times_4, 10000)); 354 __ fild_d(Operand(ebx, ecx, times_4, 10000)); 355 __ fistp_d(Operand(ebx, ecx, times_4, 10000)); 356 __ fnstsw_ax(); 357 __ nop(); 358 __ fadd(3); 359 __ fsub(3); 360 __ fmul(3); 361 __ fdiv(3); 362 363 __ faddp(3); 364 __ fsubp(3); 365 __ fmulp(3); 366 __ fdivp(3); 367 __ fcompp(); 368 __ fwait(); 369 __ nop(); 370 { 371 if (CpuFeatures::IsSupported(SSE2)) { 372 CpuFeatures::Scope fscope(SSE2); 373 __ cvttss2si(edx, Operand(ebx, ecx, times_4, 10000)); 374 __ cvtsi2sd(xmm1, Operand(ebx, ecx, times_4, 10000)); 375 __ addsd(xmm1, xmm0); 376 __ mulsd(xmm1, xmm0); 377 __ subsd(xmm1, xmm0); 378 __ divsd(xmm1, xmm0); 379 __ movdbl(xmm1, Operand(ebx, ecx, times_4, 10000)); 380 __ movdbl(Operand(ebx, ecx, times_4, 10000), xmm1); 381 __ ucomisd(xmm0, xmm1); 382 383 // 128 bit move instructions. 384 __ movdqa(xmm0, Operand(ebx, ecx, times_4, 10000)); 385 __ movdqa(Operand(ebx, ecx, times_4, 10000), xmm0); 386 __ movdqu(xmm0, Operand(ebx, ecx, times_4, 10000)); 387 __ movdqu(Operand(ebx, ecx, times_4, 10000), xmm0); 388 } 389 } 390 391 // cmov. 392 { 393 if (CpuFeatures::IsSupported(CMOV)) { 394 CpuFeatures::Scope use_cmov(CMOV); 395 __ cmov(overflow, eax, Operand(eax, 0)); 396 __ cmov(no_overflow, eax, Operand(eax, 1)); 397 __ cmov(below, eax, Operand(eax, 2)); 398 __ cmov(above_equal, eax, Operand(eax, 3)); 399 __ cmov(equal, eax, Operand(ebx, 0)); 400 __ cmov(not_equal, eax, Operand(ebx, 1)); 401 __ cmov(below_equal, eax, Operand(ebx, 2)); 402 __ cmov(above, eax, Operand(ebx, 3)); 403 __ cmov(sign, eax, Operand(ecx, 0)); 404 __ cmov(not_sign, eax, Operand(ecx, 1)); 405 __ cmov(parity_even, eax, Operand(ecx, 2)); 406 __ cmov(parity_odd, eax, Operand(ecx, 3)); 407 __ cmov(less, eax, Operand(edx, 0)); 408 __ cmov(greater_equal, eax, Operand(edx, 1)); 409 __ cmov(less_equal, eax, Operand(edx, 2)); 410 __ cmov(greater, eax, Operand(edx, 3)); 411 } 412 } 413 414 // andpd, cmpltsd, movaps, psllq, psrlq, por. 415 { 416 if (CpuFeatures::IsSupported(SSE2)) { 417 CpuFeatures::Scope fscope(SSE2); 418 __ andpd(xmm0, xmm1); 419 __ andpd(xmm1, xmm2); 420 421 __ cmpltsd(xmm0, xmm1); 422 __ cmpltsd(xmm1, xmm2); 423 424 __ movaps(xmm0, xmm1); 425 __ movaps(xmm1, xmm2); 426 427 __ psllq(xmm0, 17); 428 __ psllq(xmm1, 42); 429 430 __ psllq(xmm0, xmm1); 431 __ psllq(xmm1, xmm2); 432 433 __ psrlq(xmm0, 17); 434 __ psrlq(xmm1, 42); 435 436 __ psrlq(xmm0, xmm1); 437 __ psrlq(xmm1, xmm2); 438 439 __ por(xmm0, xmm1); 440 __ por(xmm1, xmm2); 441 } 442 } 443 444 { 445 if (CpuFeatures::IsSupported(SSE4_1)) { 446 CpuFeatures::Scope scope(SSE4_1); 447 __ pextrd(eax, xmm0, 1); 448 __ pinsrd(xmm1, eax, 0); 449 } 450 } 451 452 // Nop instructions 453 for (int i = 0; i < 16; i++) { 454 __ Nop(i); 455 } 456 457 __ ret(0); 458 459 CodeDesc desc; 460 assm.GetCode(&desc); 461 Object* code = HEAP->CreateCode( 462 desc, 463 Code::ComputeFlags(Code::STUB), 464 Handle<Object>(HEAP->undefined_value()))->ToObjectChecked(); 465 CHECK(code->IsCode()); 466 #ifdef OBJECT_PRINT 467 Code::cast(code)->Print(); 468 byte* begin = Code::cast(code)->instruction_start(); 469 byte* end = begin + Code::cast(code)->instruction_size(); 470 disasm::Disassembler::Disassemble(stdout, begin, end); 471 #endif 472 } 473 474 #undef __ 475
