1 // Copyright 2007-2008 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(buffer, sizeof buffer); 62 DummyStaticFunction(NULL); // just bloody use it (DELETE; debugging) 63 64 // Short immediate instructions 65 __ adc(eax, 12345678); 66 __ add(Operand(eax), Immediate(12345678)); 67 __ or_(eax, 12345678); 68 __ sub(Operand(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, Operand(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(Operand(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, Operand(ecx)); 120 __ movsx_w(edx, Operand(ecx)); 121 __ movzx_b(edx, Operand(ecx)); 122 __ movzx_w(edx, Operand(ecx)); 123 124 __ nop(); 125 __ imul(edx, Operand(ecx)); 126 __ shld(edx, Operand(ecx)); 127 __ shrd(edx, Operand(ecx)); 128 __ bts(Operand(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, Operand(ecx)); 150 __ mov_b(edx, Operand(ecx)); 151 __ mov_b(Operand(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(edx); 169 __ cdq(); 170 171 __ nop(); 172 __ idiv(edx); 173 __ mul(edx); 174 __ neg(edx); 175 __ not_(edx); 176 __ test(Operand(ebx, ecx, times_4, 10000), Immediate(123456)); 177 178 __ imul(edx, Operand(ebx, ecx, times_4, 10000)); 179 __ imul(edx, ecx, 12); 180 __ imul(edx, ecx, 1000); 181 182 __ inc(edx); 183 __ inc(Operand(ebx, ecx, times_4, 10000)); 184 __ push(Operand(ebx, ecx, times_4, 10000)); 185 __ pop(Operand(ebx, ecx, times_4, 10000)); 186 __ call(Operand(ebx, ecx, times_4, 10000)); 187 __ jmp(Operand(ebx, ecx, times_4, 10000)); 188 189 __ lea(edx, Operand(ebx, ecx, times_4, 10000)); 190 __ or_(edx, 12345); 191 __ or_(edx, Operand(ebx, ecx, times_4, 10000)); 192 193 __ nop(); 194 195 __ rcl(edx, 1); 196 __ rcl(edx, 7); 197 __ sar(edx, 1); 198 __ sar(edx, 6); 199 __ sar_cl(edx); 200 __ sbb(edx, Operand(ebx, ecx, times_4, 10000)); 201 __ shld(edx, Operand(ebx, ecx, times_4, 10000)); 202 __ shl(edx, 1); 203 __ shl(edx, 6); 204 __ shl_cl(edx); 205 __ shrd(edx, Operand(ebx, ecx, times_4, 10000)); 206 __ shr(edx, 1); 207 __ shr(edx, 7); 208 __ shr_cl(edx); 209 210 211 // Immediates 212 213 __ adc(edx, 12345); 214 215 __ add(Operand(ebx), Immediate(12)); 216 __ add(Operand(edx, ecx, times_4, 10000), Immediate(12)); 217 218 __ and_(ebx, 12345); 219 220 __ cmp(ebx, 12345); 221 __ cmp(Operand(ebx), Immediate(12)); 222 __ cmp(Operand(edx, ecx, times_4, 10000), Immediate(12)); 223 224 __ or_(ebx, 12345); 225 226 __ sub(Operand(ebx), Immediate(12)); 227 __ sub(Operand(edx, ecx, times_4, 10000), Immediate(12)); 228 __ subb(Operand(edx, ecx, times_4, 10000), 100); 229 __ subb(Operand(eax), 100); 230 __ subb(eax, Operand(edx, ecx, times_4, 10000)); 231 232 __ xor_(ebx, 12345); 233 234 __ imul(edx, ecx, 12); 235 __ imul(edx, ecx, 1000); 236 237 __ rep_movs(); 238 239 __ sub(edx, Operand(ebx, ecx, times_4, 10000)); 240 __ sub(edx, Operand(ebx)); 241 242 __ test(edx, Immediate(12345)); 243 __ test(edx, Operand(ebx, ecx, times_8, 10000)); 244 __ nop(); 245 246 __ xor_(edx, 12345); 247 __ xor_(edx, Operand(ebx, ecx, times_8, 10000)); 248 __ bts(Operand(ebx, ecx, times_8, 10000), edx); 249 __ hlt(); 250 __ int3(); 251 __ ret(0); 252 __ ret(8); 253 254 // Calls 255 256 Label L1, L2; 257 __ bind(&L1); 258 __ nop(); 259 __ call(&L1); 260 __ call(&L2); 261 __ nop(); 262 __ bind(&L2); 263 __ call(Operand(ebx, ecx, times_4, 10000)); 264 __ nop(); 265 Handle<Code> ic(Builtins::builtin(Builtins::LoadIC_Initialize)); 266 __ call(ic, RelocInfo::CODE_TARGET); 267 __ nop(); 268 __ call(FUNCTION_ADDR(DummyStaticFunction), RelocInfo::RUNTIME_ENTRY); 269 __ nop(); 270 271 __ jmp(&L1); 272 __ jmp(Operand(ebx, ecx, times_4, 10000)); 273 ExternalReference after_break_target = 274 ExternalReference(Debug_Address::AfterBreakTarget()); 275 __ jmp(Operand::StaticVariable(after_break_target)); 276 __ jmp(ic, RelocInfo::CODE_TARGET); 277 __ nop(); 278 279 280 Label Ljcc; 281 __ nop(); 282 // long jumps 283 __ j(overflow, &Ljcc); 284 __ j(no_overflow, &Ljcc); 285 __ j(below, &Ljcc); 286 __ j(above_equal, &Ljcc); 287 __ j(equal, &Ljcc); 288 __ j(not_equal, &Ljcc); 289 __ j(below_equal, &Ljcc); 290 __ j(above, &Ljcc); 291 __ j(sign, &Ljcc); 292 __ j(not_sign, &Ljcc); 293 __ j(parity_even, &Ljcc); 294 __ j(parity_odd, &Ljcc); 295 __ j(less, &Ljcc); 296 __ j(greater_equal, &Ljcc); 297 __ j(less_equal, &Ljcc); 298 __ j(greater, &Ljcc); 299 __ nop(); 300 __ bind(&Ljcc); 301 // short jumps 302 __ j(overflow, &Ljcc); 303 __ j(no_overflow, &Ljcc); 304 __ j(below, &Ljcc); 305 __ j(above_equal, &Ljcc); 306 __ j(equal, &Ljcc); 307 __ j(not_equal, &Ljcc); 308 __ j(below_equal, &Ljcc); 309 __ j(above, &Ljcc); 310 __ j(sign, &Ljcc); 311 __ j(not_sign, &Ljcc); 312 __ j(parity_even, &Ljcc); 313 __ j(parity_odd, &Ljcc); 314 __ j(less, &Ljcc); 315 __ j(greater_equal, &Ljcc); 316 __ j(less_equal, &Ljcc); 317 __ j(greater, &Ljcc); 318 319 // checking hints 320 __ j(zero, &Ljcc, taken); 321 __ j(zero, &Ljcc, not_taken); 322 323 // __ mov(Operand::StaticVariable(Top::handler_address()), eax); 324 // 0xD9 instructions 325 __ nop(); 326 327 __ fld1(); 328 __ fldz(); 329 __ fabs(); 330 __ fchs(); 331 __ fprem(); 332 __ fprem1(); 333 __ fincstp(); 334 __ ftst(); 335 __ fxch(3); 336 __ fld_s(Operand(ebx, ecx, times_4, 10000)); 337 __ fstp_s(Operand(ebx, ecx, times_4, 10000)); 338 __ ffree(3); 339 __ fld_d(Operand(ebx, ecx, times_4, 10000)); 340 __ fstp_d(Operand(ebx, ecx, times_4, 10000)); 341 __ nop(); 342 343 __ fild_s(Operand(ebx, ecx, times_4, 10000)); 344 __ fistp_s(Operand(ebx, ecx, times_4, 10000)); 345 __ fild_d(Operand(ebx, ecx, times_4, 10000)); 346 __ fistp_d(Operand(ebx, ecx, times_4, 10000)); 347 __ fnstsw_ax(); 348 __ nop(); 349 __ fadd(3); 350 __ fsub(3); 351 __ fmul(3); 352 __ fdiv(3); 353 354 __ faddp(3); 355 __ fsubp(3); 356 __ fmulp(3); 357 __ fdivp(3); 358 __ fcompp(); 359 __ fwait(); 360 __ nop(); 361 { 362 CHECK(CpuFeatures::IsSupported(SSE2)); 363 CpuFeatures::Scope fscope(SSE2); 364 __ cvttss2si(edx, Operand(ebx, ecx, times_4, 10000)); 365 __ cvtsi2sd(xmm1, Operand(ebx, ecx, times_4, 10000)); 366 __ addsd(xmm1, xmm0); 367 __ mulsd(xmm1, xmm0); 368 __ subsd(xmm1, xmm0); 369 __ divsd(xmm1, xmm0); 370 __ movdbl(xmm1, Operand(ebx, ecx, times_4, 10000)); 371 __ movdbl(Operand(ebx, ecx, times_4, 10000), xmm1); 372 __ comisd(xmm0, xmm1); 373 374 // 128 bit move instructions. 375 __ movdqa(xmm0, Operand(ebx, ecx, times_4, 10000)); 376 __ movdqa(Operand(ebx, ecx, times_4, 10000), xmm0); 377 __ movdqu(xmm0, Operand(ebx, ecx, times_4, 10000)); 378 __ movdqu(Operand(ebx, ecx, times_4, 10000), xmm0); 379 } 380 381 // cmov. 382 { 383 CHECK(CpuFeatures::IsSupported(CMOV)); 384 CpuFeatures::Scope use_cmov(CMOV); 385 __ cmov(overflow, eax, Operand(eax, 0)); 386 __ cmov(no_overflow, eax, Operand(eax, 1)); 387 __ cmov(below, eax, Operand(eax, 2)); 388 __ cmov(above_equal, eax, Operand(eax, 3)); 389 __ cmov(equal, eax, Operand(ebx, 0)); 390 __ cmov(not_equal, eax, Operand(ebx, 1)); 391 __ cmov(below_equal, eax, Operand(ebx, 2)); 392 __ cmov(above, eax, Operand(ebx, 3)); 393 __ cmov(sign, eax, Operand(ecx, 0)); 394 __ cmov(not_sign, eax, Operand(ecx, 1)); 395 __ cmov(parity_even, eax, Operand(ecx, 2)); 396 __ cmov(parity_odd, eax, Operand(ecx, 3)); 397 __ cmov(less, eax, Operand(edx, 0)); 398 __ cmov(greater_equal, eax, Operand(edx, 1)); 399 __ cmov(less_equal, eax, Operand(edx, 2)); 400 __ cmov(greater, eax, Operand(edx, 3)); 401 } 402 403 __ ret(0); 404 405 CodeDesc desc; 406 assm.GetCode(&desc); 407 Object* code = Heap::CreateCode(desc, 408 NULL, 409 Code::ComputeFlags(Code::STUB), 410 Handle<Object>(Heap::undefined_value())); 411 CHECK(code->IsCode()); 412 #ifdef DEBUG 413 Code::cast(code)->Print(); 414 byte* begin = Code::cast(code)->instruction_start(); 415 byte* end = begin + Code::cast(code)->instruction_size(); 416 disasm::Disassembler::Disassemble(stdout, begin, end); 417 #endif 418 } 419 420 #undef __ 421
