Ben Murdoch | 3ef787d | 2012-04-12 10:51:47 +0100 | [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 | #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(DisasmX64) { |
| 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 | __ addq(rax, Immediate(12345678)); |
| 66 | __ or_(rax, Immediate(12345678)); |
| 67 | __ subq(rax, Immediate(12345678)); |
| 68 | __ xor_(rax, Immediate(12345678)); |
| 69 | __ and_(rax, Immediate(12345678)); |
| 70 | |
| 71 | // ---- This one caused crash |
| 72 | __ movq(rbx, Operand(rsp, rcx, times_2, 0)); // [rsp+rcx*4] |
| 73 | |
| 74 | // ---- All instructions that I can think of |
| 75 | __ addq(rdx, rbx); |
| 76 | __ addq(rdx, Operand(rbx, 0)); |
| 77 | __ addq(rdx, Operand(rbx, 16)); |
| 78 | __ addq(rdx, Operand(rbx, 1999)); |
| 79 | __ addq(rdx, Operand(rsp, 0)); |
| 80 | __ addq(rdx, Operand(rsp, 16)); |
| 81 | __ addq(rdx, Operand(rsp, 1999)); |
| 82 | __ nop(); |
| 83 | __ addq(rdi, Operand(rbp, rcx, times_4, 0)); |
| 84 | __ addq(rdi, Operand(rbp, rcx, times_4, 12)); |
| 85 | __ addq(Operand(rbp, rcx, times_4, 12), Immediate(12)); |
| 86 | |
| 87 | __ nop(); |
| 88 | __ addq(rbx, Immediate(12)); |
| 89 | __ nop(); |
| 90 | __ nop(); |
| 91 | __ and_(rdx, Immediate(3)); |
| 92 | __ and_(rdx, Operand(rsp, 4)); |
| 93 | __ cmpq(rdx, Immediate(3)); |
| 94 | __ cmpq(rdx, Operand(rsp, 4)); |
| 95 | __ cmpq(Operand(rbp, rcx, times_4, 0), Immediate(1000)); |
| 96 | __ cmpb(rbx, Operand(rbp, rcx, times_2, 0)); |
| 97 | __ cmpb(Operand(rbp, rcx, times_2, 0), rbx); |
| 98 | __ or_(rdx, Immediate(3)); |
| 99 | __ xor_(rdx, Immediate(3)); |
| 100 | __ nop(); |
| 101 | { |
| 102 | CHECK(CpuFeatures::IsSupported(CPUID)); |
| 103 | CpuFeatures::Scope fscope(CPUID); |
| 104 | __ cpuid(); |
| 105 | } |
| 106 | { |
| 107 | CHECK(CpuFeatures::IsSupported(RDTSC)); |
| 108 | CpuFeatures::Scope fscope(RDTSC); |
| 109 | __ rdtsc(); |
| 110 | } |
| 111 | __ movsxbq(rdx, Operand(rcx, 0)); |
| 112 | __ movsxwq(rdx, Operand(rcx, 0)); |
| 113 | __ movzxbl(rdx, Operand(rcx, 0)); |
| 114 | __ movzxwl(rdx, Operand(rcx, 0)); |
| 115 | __ movzxbq(rdx, Operand(rcx, 0)); |
| 116 | __ movzxwq(rdx, Operand(rcx, 0)); |
| 117 | |
| 118 | __ nop(); |
| 119 | __ imul(rdx, rcx); |
| 120 | __ shld(rdx, rcx); |
| 121 | __ shrd(rdx, rcx); |
| 122 | __ bts(Operand(rdx, 0), rcx); |
| 123 | __ bts(Operand(rbx, rcx, times_4, 0), rcx); |
| 124 | __ nop(); |
| 125 | __ push(Immediate(12)); |
| 126 | __ push(Immediate(23456)); |
| 127 | __ push(rcx); |
| 128 | __ push(rsi); |
| 129 | __ push(Operand(rbp, JavaScriptFrameConstants::kFunctionOffset)); |
| 130 | __ push(Operand(rbx, rcx, times_4, 0)); |
| 131 | __ push(Operand(rbx, rcx, times_4, 0)); |
| 132 | __ push(Operand(rbx, rcx, times_4, 10000)); |
| 133 | __ pop(rdx); |
| 134 | __ pop(rax); |
| 135 | __ pop(Operand(rbx, rcx, times_4, 0)); |
| 136 | __ nop(); |
| 137 | |
| 138 | __ addq(rdx, Operand(rsp, 16)); |
| 139 | __ addq(rdx, rcx); |
| 140 | __ movb(rdx, Operand(rcx, 0)); |
| 141 | __ movb(rcx, Immediate(6)); |
| 142 | __ movb(Operand(rsp, 16), rdx); |
| 143 | __ movw(Operand(rsp, 16), rdx); |
| 144 | __ nop(); |
| 145 | __ movsxwq(rdx, Operand(rsp, 12)); |
| 146 | __ movsxbq(rdx, Operand(rsp, 12)); |
| 147 | __ movsxlq(rdx, Operand(rsp, 12)); |
| 148 | __ movzxwq(rdx, Operand(rsp, 12)); |
| 149 | __ movzxbq(rdx, Operand(rsp, 12)); |
| 150 | __ nop(); |
| 151 | __ movq(rdx, Immediate(1234567)); |
| 152 | __ movq(rdx, Operand(rsp, 12)); |
| 153 | __ movq(Operand(rbx, rcx, times_4, 10000), Immediate(12345)); |
| 154 | __ movq(Operand(rbx, rcx, times_4, 10000), rdx); |
| 155 | __ nop(); |
| 156 | __ decb(rdx); |
| 157 | __ decb(Operand(rax, 10)); |
| 158 | __ decb(Operand(rbx, rcx, times_4, 10000)); |
| 159 | __ decq(rdx); |
| 160 | __ cdq(); |
| 161 | |
| 162 | __ nop(); |
| 163 | __ idivq(rdx); |
| 164 | __ mul(rdx); |
| 165 | __ neg(rdx); |
| 166 | __ not_(rdx); |
| 167 | __ testq(Operand(rbx, rcx, times_4, 10000), rdx); |
| 168 | |
| 169 | __ imul(rdx, Operand(rbx, rcx, times_4, 10000)); |
| 170 | __ imul(rdx, rcx, Immediate(12)); |
| 171 | __ imul(rdx, rcx, Immediate(1000)); |
| 172 | |
| 173 | __ incq(rdx); |
| 174 | __ incq(Operand(rbx, rcx, times_4, 10000)); |
| 175 | __ push(Operand(rbx, rcx, times_4, 10000)); |
| 176 | __ pop(Operand(rbx, rcx, times_4, 10000)); |
| 177 | __ jmp(Operand(rbx, rcx, times_4, 10000)); |
| 178 | |
| 179 | __ lea(rdx, Operand(rbx, rcx, times_4, 10000)); |
| 180 | __ or_(rdx, Immediate(12345)); |
| 181 | __ or_(rdx, Operand(rbx, rcx, times_4, 10000)); |
| 182 | |
| 183 | __ nop(); |
| 184 | |
| 185 | __ rcl(rdx, Immediate(1)); |
| 186 | __ rcl(rdx, Immediate(7)); |
| 187 | __ rcr(rdx, Immediate(1)); |
| 188 | __ rcr(rdx, Immediate(7)); |
| 189 | __ sar(rdx, Immediate(1)); |
| 190 | __ sar(rdx, Immediate(6)); |
| 191 | __ sar_cl(rdx); |
| 192 | __ sbbq(rdx, rbx); |
| 193 | __ shld(rdx, rbx); |
| 194 | __ shl(rdx, Immediate(1)); |
| 195 | __ shl(rdx, Immediate(6)); |
| 196 | __ shl_cl(rdx); |
| 197 | __ shrd(rdx, rbx); |
| 198 | __ shr(rdx, Immediate(1)); |
| 199 | __ shr(rdx, Immediate(7)); |
| 200 | __ shr_cl(rdx); |
| 201 | |
| 202 | |
| 203 | // Immediates |
| 204 | |
| 205 | __ addq(rbx, Immediate(12)); |
| 206 | __ addq(Operand(rdx, rcx, times_4, 10000), Immediate(12)); |
| 207 | |
| 208 | __ and_(rbx, Immediate(12345)); |
| 209 | |
| 210 | __ cmpq(rbx, Immediate(12345)); |
| 211 | __ cmpq(rbx, Immediate(12)); |
| 212 | __ cmpq(Operand(rdx, rcx, times_4, 10000), Immediate(12)); |
| 213 | __ cmpb(rax, Immediate(100)); |
| 214 | |
| 215 | __ or_(rbx, Immediate(12345)); |
| 216 | |
| 217 | __ subq(rbx, Immediate(12)); |
| 218 | __ subq(Operand(rdx, rcx, times_4, 10000), Immediate(12)); |
| 219 | |
| 220 | __ xor_(rbx, Immediate(12345)); |
| 221 | |
| 222 | __ imul(rdx, rcx, Immediate(12)); |
| 223 | __ imul(rdx, rcx, Immediate(1000)); |
| 224 | |
| 225 | __ cld(); |
| 226 | |
| 227 | __ subq(rdx, Operand(rbx, rcx, times_4, 10000)); |
| 228 | __ subq(rdx, rbx); |
| 229 | |
| 230 | __ testq(rdx, Immediate(12345)); |
| 231 | __ testq(Operand(rbx, rcx, times_8, 10000), rdx); |
| 232 | __ testb(Operand(rcx, rbx, times_2, 1000), rdx); |
| 233 | __ testb(Operand(rax, -20), Immediate(0x9A)); |
| 234 | __ nop(); |
| 235 | |
| 236 | __ xor_(rdx, Immediate(12345)); |
| 237 | __ xor_(rdx, Operand(rbx, rcx, times_8, 10000)); |
| 238 | __ bts(Operand(rbx, rcx, times_8, 10000), rdx); |
| 239 | __ hlt(); |
| 240 | __ int3(); |
| 241 | __ ret(0); |
| 242 | __ ret(8); |
| 243 | |
| 244 | // Calls |
| 245 | |
| 246 | Label L1, L2; |
| 247 | __ bind(&L1); |
| 248 | __ nop(); |
| 249 | __ call(&L1); |
| 250 | __ call(&L2); |
| 251 | __ nop(); |
| 252 | __ bind(&L2); |
| 253 | __ call(Operand(rbx, rcx, times_4, 10000)); |
| 254 | __ nop(); |
| 255 | Handle<Code> ic(Isolate::Current()->builtins()->builtin( |
| 256 | Builtins::kLoadIC_Initialize)); |
| 257 | __ call(ic, RelocInfo::CODE_TARGET); |
| 258 | __ nop(); |
| 259 | __ nop(); |
| 260 | |
| 261 | __ jmp(&L1); |
| 262 | __ jmp(Operand(rbx, rcx, times_4, 10000)); |
| 263 | #ifdef ENABLE_DEBUGGER_SUPPORT |
| 264 | ExternalReference after_break_target = |
| 265 | ExternalReference(Debug_Address::AfterBreakTarget(), |
| 266 | assm.isolate()); |
| 267 | #endif // ENABLE_DEBUGGER_SUPPORT |
| 268 | __ jmp(ic, RelocInfo::CODE_TARGET); |
| 269 | __ nop(); |
| 270 | |
| 271 | |
| 272 | Label Ljcc; |
| 273 | __ nop(); |
| 274 | // long jumps |
| 275 | __ j(overflow, &Ljcc); |
| 276 | __ j(no_overflow, &Ljcc); |
| 277 | __ j(below, &Ljcc); |
| 278 | __ j(above_equal, &Ljcc); |
| 279 | __ j(equal, &Ljcc); |
| 280 | __ j(not_equal, &Ljcc); |
| 281 | __ j(below_equal, &Ljcc); |
| 282 | __ j(above, &Ljcc); |
| 283 | __ j(sign, &Ljcc); |
| 284 | __ j(not_sign, &Ljcc); |
| 285 | __ j(parity_even, &Ljcc); |
| 286 | __ j(parity_odd, &Ljcc); |
| 287 | __ j(less, &Ljcc); |
| 288 | __ j(greater_equal, &Ljcc); |
| 289 | __ j(less_equal, &Ljcc); |
| 290 | __ j(greater, &Ljcc); |
| 291 | __ nop(); |
| 292 | __ bind(&Ljcc); |
| 293 | // short jumps |
| 294 | __ j(overflow, &Ljcc); |
| 295 | __ j(no_overflow, &Ljcc); |
| 296 | __ j(below, &Ljcc); |
| 297 | __ j(above_equal, &Ljcc); |
| 298 | __ j(equal, &Ljcc); |
| 299 | __ j(not_equal, &Ljcc); |
| 300 | __ j(below_equal, &Ljcc); |
| 301 | __ j(above, &Ljcc); |
| 302 | __ j(sign, &Ljcc); |
| 303 | __ j(not_sign, &Ljcc); |
| 304 | __ j(parity_even, &Ljcc); |
| 305 | __ j(parity_odd, &Ljcc); |
| 306 | __ j(less, &Ljcc); |
| 307 | __ j(greater_equal, &Ljcc); |
| 308 | __ j(less_equal, &Ljcc); |
| 309 | __ j(greater, &Ljcc); |
| 310 | |
| 311 | // 0xD9 instructions |
| 312 | __ nop(); |
| 313 | |
| 314 | __ fld(1); |
| 315 | __ fld1(); |
| 316 | __ fldz(); |
| 317 | __ fldpi(); |
| 318 | __ fabs(); |
| 319 | __ fchs(); |
| 320 | __ fprem(); |
| 321 | __ fprem1(); |
| 322 | __ fincstp(); |
| 323 | __ ftst(); |
| 324 | __ fxch(3); |
| 325 | __ fld_s(Operand(rbx, rcx, times_4, 10000)); |
| 326 | __ fstp_s(Operand(rbx, rcx, times_4, 10000)); |
| 327 | __ ffree(3); |
| 328 | __ fld_d(Operand(rbx, rcx, times_4, 10000)); |
| 329 | __ fstp_d(Operand(rbx, rcx, times_4, 10000)); |
| 330 | __ nop(); |
| 331 | |
| 332 | __ fild_s(Operand(rbx, rcx, times_4, 10000)); |
| 333 | __ fistp_s(Operand(rbx, rcx, times_4, 10000)); |
| 334 | __ fild_d(Operand(rbx, rcx, times_4, 10000)); |
| 335 | __ fistp_d(Operand(rbx, rcx, times_4, 10000)); |
| 336 | __ fnstsw_ax(); |
| 337 | __ nop(); |
| 338 | __ fadd(3); |
| 339 | __ fsub(3); |
| 340 | __ fmul(3); |
| 341 | __ fdiv(3); |
| 342 | |
| 343 | __ faddp(3); |
| 344 | __ fsubp(3); |
| 345 | __ fmulp(3); |
| 346 | __ fdivp(3); |
| 347 | __ fcompp(); |
| 348 | __ fwait(); |
| 349 | __ nop(); |
| 350 | { |
| 351 | if (CpuFeatures::IsSupported(SSE2)) { |
| 352 | CpuFeatures::Scope fscope(SSE2); |
| 353 | __ cvttss2si(rdx, Operand(rbx, rcx, times_4, 10000)); |
| 354 | __ cvttss2si(rdx, xmm1); |
| 355 | __ cvttsd2si(rdx, Operand(rbx, rcx, times_4, 10000)); |
| 356 | __ cvttsd2si(rdx, xmm1); |
| 357 | __ cvttsd2siq(rdx, xmm1); |
| 358 | __ addsd(xmm1, xmm0); |
| 359 | __ mulsd(xmm1, xmm0); |
| 360 | __ subsd(xmm1, xmm0); |
| 361 | __ divsd(xmm1, xmm0); |
| 362 | __ movsd(xmm1, Operand(rbx, rcx, times_4, 10000)); |
| 363 | __ movsd(Operand(rbx, rcx, times_4, 10000), xmm1); |
| 364 | __ ucomisd(xmm0, xmm1); |
| 365 | |
| 366 | // 128 bit move instructions. |
| 367 | __ movdqa(xmm0, Operand(rbx, rcx, times_4, 10000)); |
| 368 | __ movdqa(Operand(rbx, rcx, times_4, 10000), xmm0); |
| 369 | } |
| 370 | } |
| 371 | |
| 372 | // cmov. |
| 373 | { |
| 374 | if (CpuFeatures::IsSupported(CMOV)) { |
| 375 | CpuFeatures::Scope use_cmov(CMOV); |
| 376 | __ cmovq(overflow, rax, Operand(rax, 0)); |
| 377 | __ cmovq(no_overflow, rax, Operand(rax, 1)); |
| 378 | __ cmovq(below, rax, Operand(rax, 2)); |
| 379 | __ cmovq(above_equal, rax, Operand(rax, 3)); |
| 380 | __ cmovq(equal, rax, Operand(rbx, 0)); |
| 381 | __ cmovq(not_equal, rax, Operand(rbx, 1)); |
| 382 | __ cmovq(below_equal, rax, Operand(rbx, 2)); |
| 383 | __ cmovq(above, rax, Operand(rbx, 3)); |
| 384 | __ cmovq(sign, rax, Operand(rcx, 0)); |
| 385 | __ cmovq(not_sign, rax, Operand(rcx, 1)); |
| 386 | __ cmovq(parity_even, rax, Operand(rcx, 2)); |
| 387 | __ cmovq(parity_odd, rax, Operand(rcx, 3)); |
| 388 | __ cmovq(less, rax, Operand(rdx, 0)); |
| 389 | __ cmovq(greater_equal, rax, Operand(rdx, 1)); |
| 390 | __ cmovq(less_equal, rax, Operand(rdx, 2)); |
| 391 | __ cmovq(greater, rax, Operand(rdx, 3)); |
| 392 | } |
| 393 | } |
| 394 | |
| 395 | // andpd, etc. |
| 396 | { |
| 397 | if (CpuFeatures::IsSupported(SSE2)) { |
| 398 | CpuFeatures::Scope fscope(SSE2); |
| 399 | __ andpd(xmm0, xmm1); |
| 400 | __ andpd(xmm1, xmm2); |
| 401 | |
| 402 | __ movaps(xmm0, xmm1); |
| 403 | __ movaps(xmm1, xmm2); |
| 404 | } |
| 405 | } |
| 406 | |
| 407 | // Nop instructions |
| 408 | for (int i = 0; i < 16; i++) { |
| 409 | __ Nop(i); |
| 410 | } |
| 411 | |
| 412 | __ ret(0); |
| 413 | |
| 414 | CodeDesc desc; |
| 415 | assm.GetCode(&desc); |
| 416 | Object* code = HEAP->CreateCode( |
| 417 | desc, |
| 418 | Code::ComputeFlags(Code::STUB), |
| 419 | Handle<Object>(HEAP->undefined_value()))->ToObjectChecked(); |
| 420 | CHECK(code->IsCode()); |
| 421 | #ifdef OBJECT_PRINT |
| 422 | Code::cast(code)->Print(); |
| 423 | byte* begin = Code::cast(code)->instruction_start(); |
| 424 | byte* end = begin + Code::cast(code)->instruction_size(); |
| 425 | disasm::Disassembler::Disassemble(stdout, begin, end); |
| 426 | #endif |
| 427 | } |
| 428 | |
| 429 | #undef __ |