christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame^] | 1 | // Copyright 2006-2008 Google Inc. 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 "v8.h" |
| 29 | |
| 30 | #include "ic-inl.h" |
| 31 | #include "codegen-inl.h" |
| 32 | #include "stub-cache.h" |
| 33 | |
| 34 | namespace v8 { namespace internal { |
| 35 | |
| 36 | #define __ masm-> |
| 37 | |
| 38 | |
| 39 | static void ProbeTable(MacroAssembler* masm, |
| 40 | Code::Flags flags, |
| 41 | StubCache::Table table, |
| 42 | Register name, |
| 43 | Register offset) { |
| 44 | ExternalReference key_offset(SCTableReference::keyReference(table)); |
| 45 | ExternalReference value_offset(SCTableReference::valueReference(table)); |
| 46 | |
| 47 | Label miss; |
| 48 | |
| 49 | // Save the offset on the stack. |
| 50 | __ push(offset); |
| 51 | |
| 52 | // Check that the key in the entry matches the name. |
| 53 | __ cmp(name, Operand::StaticArray(offset, times_2, key_offset)); |
| 54 | __ j(not_equal, &miss, not_taken); |
| 55 | |
| 56 | // Get the code entry from the cache. |
| 57 | __ mov(offset, Operand::StaticArray(offset, times_2, value_offset)); |
| 58 | |
| 59 | // Check that the flags match what we're looking for. |
| 60 | __ mov(offset, FieldOperand(offset, Code::kFlagsOffset)); |
| 61 | __ and_(offset, ~Code::kFlagsTypeMask); |
| 62 | __ cmp(offset, flags); |
| 63 | __ j(not_equal, &miss); |
| 64 | |
| 65 | // Restore offset and re-load code entry from cache. |
| 66 | __ pop(offset); |
| 67 | __ mov(offset, Operand::StaticArray(offset, times_2, value_offset)); |
| 68 | |
| 69 | // Jump to the first instruction in the code stub. |
| 70 | __ add(Operand(offset), Immediate(Code::kHeaderSize - kHeapObjectTag)); |
| 71 | __ jmp(Operand(offset)); |
| 72 | |
| 73 | // Miss: Restore offset and fall through. |
| 74 | __ bind(&miss); |
| 75 | __ pop(offset); |
| 76 | } |
| 77 | |
| 78 | |
| 79 | void StubCache::GenerateProbe(MacroAssembler* masm, |
| 80 | Code::Flags flags, |
| 81 | Register receiver, |
| 82 | Register name, |
| 83 | Register scratch) { |
| 84 | Label miss; |
| 85 | |
| 86 | // Make sure that code is valid. The shifting code relies on the |
| 87 | // entry size being 8. |
| 88 | ASSERT(sizeof(Entry) == 8); |
| 89 | |
| 90 | // Make sure the flags does not name a specific type. |
| 91 | ASSERT(Code::ExtractTypeFromFlags(flags) == 0); |
| 92 | |
| 93 | // Make sure that there are no register conflicts. |
| 94 | ASSERT(!scratch.is(receiver)); |
| 95 | ASSERT(!scratch.is(name)); |
| 96 | |
| 97 | // Check that the receiver isn't a smi. |
| 98 | __ test(receiver, Immediate(kSmiTagMask)); |
| 99 | __ j(zero, &miss, not_taken); |
| 100 | |
| 101 | // Get the map of the receiver and compute the hash. |
| 102 | __ mov(scratch, FieldOperand(receiver, HeapObject::kMapOffset)); |
| 103 | __ add(scratch, FieldOperand(name, String::kLengthOffset)); |
| 104 | __ xor_(scratch, flags); |
| 105 | __ and_(scratch, (kPrimaryTableSize - 1) << kHeapObjectTagSize); |
| 106 | |
| 107 | // Probe the primary table. |
| 108 | ProbeTable(masm, flags, kPrimary, name, scratch); |
| 109 | |
| 110 | // Primary miss: Compute hash for secondary probe. |
| 111 | __ sub(scratch, Operand(name)); |
| 112 | __ add(Operand(scratch), Immediate(flags)); |
| 113 | __ and_(scratch, (kSecondaryTableSize - 1) << kHeapObjectTagSize); |
| 114 | |
| 115 | // Probe the secondary table. |
| 116 | ProbeTable(masm, flags, kSecondary, name, scratch); |
| 117 | |
| 118 | // Cache miss: Fall-through and let caller handle the miss by |
| 119 | // entering the runtime system. |
| 120 | __ bind(&miss); |
| 121 | } |
| 122 | |
| 123 | |
| 124 | void StubCompiler::GenerateLoadGlobalFunctionPrototype(MacroAssembler* masm, |
| 125 | int index, |
| 126 | Register prototype) { |
| 127 | // Load the global or builtins object from the current context. |
| 128 | __ mov(prototype, Operand(esi, Context::SlotOffset(Context::GLOBAL_INDEX))); |
| 129 | // Load the global context from the global or builtins object. |
| 130 | __ mov(prototype, |
| 131 | FieldOperand(prototype, GlobalObject::kGlobalContextOffset)); |
| 132 | // Load the function from the global context. |
| 133 | __ mov(prototype, Operand(prototype, Context::SlotOffset(index))); |
| 134 | // Load the initial map. The global functions all have initial maps. |
| 135 | __ mov(prototype, |
| 136 | FieldOperand(prototype, JSFunction::kPrototypeOrInitialMapOffset)); |
| 137 | // Load the prototype from the initial map. |
| 138 | __ mov(prototype, FieldOperand(prototype, Map::kPrototypeOffset)); |
| 139 | } |
| 140 | |
| 141 | |
| 142 | void StubCompiler::GenerateLoadArrayLength(MacroAssembler* masm, |
| 143 | Register receiver, |
| 144 | Register scratch, |
| 145 | Label* miss_label) { |
| 146 | // Check that the receiver isn't a smi. |
| 147 | __ test(receiver, Immediate(kSmiTagMask)); |
| 148 | __ j(zero, miss_label, not_taken); |
| 149 | |
| 150 | // Check that the object is a JS array. |
| 151 | __ mov(scratch, FieldOperand(receiver, HeapObject::kMapOffset)); |
| 152 | __ movzx_b(scratch, FieldOperand(scratch, Map::kInstanceTypeOffset)); |
| 153 | __ cmp(scratch, JS_ARRAY_TYPE); |
| 154 | __ j(not_equal, miss_label, not_taken); |
| 155 | |
| 156 | // Load length directly from the JS array. |
| 157 | __ mov(eax, FieldOperand(receiver, JSArray::kLengthOffset)); |
| 158 | __ ret(0); |
| 159 | } |
| 160 | |
| 161 | |
| 162 | void StubCompiler::GenerateLoadShortStringLength(MacroAssembler* masm, |
| 163 | Register receiver, |
| 164 | Register scratch, |
| 165 | Label* miss_label) { |
| 166 | // Check that the receiver isn't a smi. |
| 167 | __ test(receiver, Immediate(kSmiTagMask)); |
| 168 | __ j(zero, miss_label, not_taken); |
| 169 | |
| 170 | // Check that the object is a short string. |
| 171 | __ mov(scratch, FieldOperand(receiver, HeapObject::kMapOffset)); |
| 172 | __ movzx_b(scratch, FieldOperand(scratch, Map::kInstanceTypeOffset)); |
| 173 | __ and_(scratch, kIsNotStringMask | kStringSizeMask); |
| 174 | __ cmp(scratch, kStringTag | kShortStringTag); |
| 175 | __ j(not_equal, miss_label, not_taken); |
| 176 | |
| 177 | // Load length directly from the string. |
| 178 | __ mov(eax, FieldOperand(receiver, String::kLengthOffset)); |
| 179 | __ shr(eax, String::kShortLengthShift); |
| 180 | __ shl(eax, kSmiTagSize); |
| 181 | __ ret(0); |
| 182 | } |
| 183 | |
| 184 | void StubCompiler::GenerateLoadMediumStringLength(MacroAssembler* masm, |
| 185 | Register receiver, |
| 186 | Register scratch, |
| 187 | Label* miss_label) { |
| 188 | // Check that the receiver isn't a smi. |
| 189 | __ test(receiver, Immediate(kSmiTagMask)); |
| 190 | __ j(zero, miss_label, not_taken); |
| 191 | |
| 192 | // Check that the object is a short string. |
| 193 | __ mov(scratch, FieldOperand(receiver, HeapObject::kMapOffset)); |
| 194 | __ movzx_b(scratch, FieldOperand(scratch, Map::kInstanceTypeOffset)); |
| 195 | __ and_(scratch, kIsNotStringMask | kStringSizeMask); |
| 196 | __ cmp(scratch, kStringTag | kMediumStringTag); |
| 197 | __ j(not_equal, miss_label, not_taken); |
| 198 | |
| 199 | // Load length directly from the string. |
| 200 | __ mov(eax, FieldOperand(receiver, String::kLengthOffset)); |
| 201 | __ shr(eax, String::kMediumLengthShift); |
| 202 | __ shl(eax, kSmiTagSize); |
| 203 | __ ret(0); |
| 204 | } |
| 205 | |
| 206 | |
| 207 | void StubCompiler::GenerateLoadLongStringLength(MacroAssembler* masm, |
| 208 | Register receiver, |
| 209 | Register scratch, |
| 210 | Label* miss_label) { |
| 211 | // Check that the receiver isn't a smi. |
| 212 | __ test(receiver, Immediate(kSmiTagMask)); |
| 213 | __ j(zero, miss_label, not_taken); |
| 214 | |
| 215 | // Check that the object is a short string. |
| 216 | __ mov(scratch, FieldOperand(receiver, HeapObject::kMapOffset)); |
| 217 | __ movzx_b(scratch, FieldOperand(scratch, Map::kInstanceTypeOffset)); |
| 218 | __ and_(scratch, kIsNotStringMask | kStringSizeMask); |
| 219 | __ cmp(scratch, kStringTag | kLongStringTag); |
| 220 | __ j(not_equal, miss_label, not_taken); |
| 221 | |
| 222 | // Load length directly from the string. |
| 223 | __ mov(eax, FieldOperand(receiver, String::kLengthOffset)); |
| 224 | __ shr(eax, String::kLongLengthShift); |
| 225 | __ shl(eax, kSmiTagSize); |
| 226 | __ ret(0); |
| 227 | } |
| 228 | |
| 229 | |
| 230 | void StubCompiler::GenerateLoadFunctionPrototype(MacroAssembler* masm, |
| 231 | Register receiver, |
| 232 | Register scratch1, |
| 233 | Register scratch2, |
| 234 | Label* miss_label) { |
| 235 | // Check that the receiver isn't a smi. |
| 236 | __ test(receiver, Immediate(kSmiTagMask)); |
| 237 | __ j(zero, miss_label, not_taken); |
| 238 | |
| 239 | // Check that the receiver is a function. |
| 240 | __ mov(scratch1, FieldOperand(receiver, HeapObject::kMapOffset)); |
| 241 | __ movzx_b(scratch2, FieldOperand(scratch1, Map::kInstanceTypeOffset)); |
| 242 | __ cmp(scratch2, JS_FUNCTION_TYPE); |
| 243 | __ j(not_equal, miss_label, not_taken); |
| 244 | |
| 245 | // Make sure that the function has an instance prototype. |
| 246 | Label non_instance; |
| 247 | __ movzx_b(scratch2, FieldOperand(scratch1, Map::kBitFieldOffset)); |
| 248 | __ test(scratch2, Immediate(1 << Map::kHasNonInstancePrototype)); |
| 249 | __ j(not_zero, &non_instance, not_taken); |
| 250 | |
| 251 | // Get the prototype or initial map from the function. |
| 252 | __ mov(scratch1, |
| 253 | FieldOperand(receiver, JSFunction::kPrototypeOrInitialMapOffset)); |
| 254 | |
| 255 | // If the prototype or initial map is the hole, don't return it and |
| 256 | // simply miss the cache instead. This will allow us to allocate a |
| 257 | // prototype object on-demand in the runtime system. |
| 258 | __ cmp(Operand(scratch1), Immediate(Factory::the_hole_value())); |
| 259 | __ j(equal, miss_label, not_taken); |
| 260 | __ mov(eax, Operand(scratch1)); |
| 261 | |
| 262 | // If the function does not have an initial map, we're done. |
| 263 | Label done; |
| 264 | __ mov(scratch1, FieldOperand(eax, HeapObject::kMapOffset)); |
| 265 | __ movzx_b(scratch2, FieldOperand(scratch1, Map::kInstanceTypeOffset)); |
| 266 | __ cmp(scratch2, MAP_TYPE); |
| 267 | __ j(not_equal, &done); |
| 268 | |
| 269 | // Get the prototype from the initial map. |
| 270 | __ mov(eax, FieldOperand(eax, Map::kPrototypeOffset)); |
| 271 | |
| 272 | // All done: Return the prototype. |
| 273 | __ bind(&done); |
| 274 | __ ret(0); |
| 275 | |
| 276 | // Non-instance prototype: Fetch prototype from constructor field |
| 277 | // in initial map. |
| 278 | __ bind(&non_instance); |
| 279 | __ mov(eax, FieldOperand(scratch1, Map::kConstructorOffset)); |
| 280 | __ ret(0); |
| 281 | } |
| 282 | |
| 283 | |
| 284 | void StubCompiler::GenerateLoadField(MacroAssembler* masm, |
| 285 | JSObject* object, |
| 286 | JSObject* holder, |
| 287 | Register receiver, |
| 288 | Register scratch1, |
| 289 | Register scratch2, |
| 290 | int index, |
| 291 | Label* miss_label) { |
| 292 | // Check that the receiver isn't a smi. |
| 293 | __ test(receiver, Immediate(kSmiTagMask)); |
| 294 | __ j(zero, miss_label, not_taken); |
| 295 | |
| 296 | // Check that the maps haven't changed. |
| 297 | Register reg = |
| 298 | __ CheckMaps(object, receiver, holder, scratch1, scratch2, miss_label); |
| 299 | |
| 300 | // Get the properties array of the holder. |
| 301 | __ mov(scratch1, FieldOperand(reg, JSObject::kPropertiesOffset)); |
| 302 | |
| 303 | // Return the value from the properties array. |
| 304 | int offset = index * kPointerSize + Array::kHeaderSize; |
| 305 | __ mov(eax, FieldOperand(scratch1, offset)); |
| 306 | __ ret(0); |
| 307 | } |
| 308 | |
| 309 | |
| 310 | void StubCompiler::GenerateLoadCallback(MacroAssembler* masm, |
| 311 | JSObject* object, |
| 312 | JSObject* holder, |
| 313 | Register receiver, |
| 314 | Register name, |
| 315 | Register scratch1, |
| 316 | Register scratch2, |
| 317 | AccessorInfo* callback, |
| 318 | Label* miss_label) { |
| 319 | // Check that the receiver isn't a smi. |
| 320 | __ test(receiver, Immediate(kSmiTagMask)); |
| 321 | __ j(zero, miss_label, not_taken); |
| 322 | |
| 323 | // Check that the maps haven't changed. |
| 324 | Register reg = |
| 325 | __ CheckMaps(object, receiver, holder, scratch1, scratch2, miss_label); |
| 326 | |
| 327 | // Push the arguments on the JS stack of the caller. |
| 328 | __ pop(scratch2); // remove return address |
| 329 | __ push(receiver); // receiver |
| 330 | __ push(Immediate(Handle<AccessorInfo>(callback))); // callback data |
| 331 | __ push(name); // name |
| 332 | __ push(reg); // holder |
| 333 | __ push(scratch2); // restore return address |
| 334 | |
| 335 | // Do tail-call to the C builtin. |
| 336 | __ mov(eax, 3); // not counting receiver |
| 337 | __ JumpToBuiltin(ExternalReference(IC_Utility(IC::kLoadCallbackProperty))); |
| 338 | } |
| 339 | |
| 340 | |
| 341 | void StubCompiler::GenerateLoadConstant(MacroAssembler* masm, |
| 342 | JSObject* object, |
| 343 | JSObject* holder, |
| 344 | Register receiver, |
| 345 | Register scratch1, |
| 346 | Register scratch2, |
| 347 | Object* value, |
| 348 | Label* miss_label) { |
| 349 | // Check that the receiver isn't a smi. |
| 350 | __ test(receiver, Immediate(kSmiTagMask)); |
| 351 | __ j(zero, miss_label, not_taken); |
| 352 | |
| 353 | // Check that the maps haven't changed. |
| 354 | Register reg = |
| 355 | __ CheckMaps(object, receiver, holder, scratch1, scratch2, miss_label); |
| 356 | |
| 357 | // Return the constant value. |
| 358 | __ mov(eax, Handle<Object>(value)); |
| 359 | __ ret(0); |
| 360 | } |
| 361 | |
| 362 | |
| 363 | void StubCompiler::GenerateLoadInterceptor(MacroAssembler* masm, |
| 364 | JSObject* object, |
| 365 | JSObject* holder, |
| 366 | Register receiver, |
| 367 | Register name, |
| 368 | Register scratch1, |
| 369 | Register scratch2, |
| 370 | Label* miss_label) { |
| 371 | // Check that the receiver isn't a smi. |
| 372 | __ test(receiver, Immediate(kSmiTagMask)); |
| 373 | __ j(zero, miss_label, not_taken); |
| 374 | |
| 375 | // Check that the maps haven't changed. |
| 376 | Register reg = |
| 377 | __ CheckMaps(object, receiver, holder, scratch1, scratch2, miss_label); |
| 378 | |
| 379 | // Push the arguments on the JS stack of the caller. |
| 380 | __ pop(scratch2); // remove return address |
| 381 | __ push(receiver); // receiver |
| 382 | __ push(reg); // holder |
| 383 | __ push(name); // name |
| 384 | __ push(scratch2); // restore return address |
| 385 | |
| 386 | // Do tail-call to the C builtin. |
| 387 | __ mov(eax, 2); // not counting receiver |
| 388 | __ JumpToBuiltin(ExternalReference(IC_Utility(IC::kLoadInterceptorProperty))); |
| 389 | } |
| 390 | |
| 391 | |
| 392 | void StubCompiler::GenerateLoadMiss(MacroAssembler* masm, Code::Kind kind) { |
| 393 | ASSERT(kind == Code::LOAD_IC || kind == Code::KEYED_LOAD_IC); |
| 394 | Code* code = NULL; |
| 395 | if (kind == Code::LOAD_IC) { |
| 396 | code = Builtins::builtin(Builtins::LoadIC_Miss); |
| 397 | } else { |
| 398 | code = Builtins::builtin(Builtins::KeyedLoadIC_Miss); |
| 399 | } |
| 400 | |
| 401 | Handle<Code> ic(code); |
| 402 | __ jmp(ic, code_target); |
| 403 | } |
| 404 | |
| 405 | |
| 406 | void StubCompiler::GenerateStoreField(MacroAssembler* masm, |
| 407 | JSObject* object, |
| 408 | int index, |
| 409 | Map* transition, |
| 410 | Register receiver_reg, |
| 411 | Register name_reg, |
| 412 | Register scratch, |
| 413 | Label* miss_label) { |
| 414 | // Check that the object isn't a smi. |
| 415 | __ test(receiver_reg, Immediate(kSmiTagMask)); |
| 416 | __ j(zero, miss_label, not_taken); |
| 417 | |
| 418 | // Check that the map of the object hasn't changed. |
| 419 | __ cmp(FieldOperand(receiver_reg, HeapObject::kMapOffset), |
| 420 | Immediate(Handle<Map>(object->map()))); |
| 421 | __ j(not_equal, miss_label, not_taken); |
| 422 | |
| 423 | // Perform global security token check if needed. |
| 424 | if (object->IsJSGlobalObject()) { |
| 425 | __ CheckAccessGlobal(receiver_reg, scratch, miss_label); |
| 426 | } |
| 427 | |
| 428 | // Stub never generated for non-global objects that require access |
| 429 | // checks. |
| 430 | ASSERT(object->IsJSGlobalObject() || !object->IsAccessCheckNeeded()); |
| 431 | |
| 432 | // Get the properties array (optimistically). |
| 433 | __ mov(scratch, FieldOperand(receiver_reg, JSObject::kPropertiesOffset)); |
| 434 | |
| 435 | // Perform map transition for the receiver if necessary. |
| 436 | if (transition != NULL) { |
| 437 | // Update the map of the object; no write barrier updating is |
| 438 | // needed because the map is never in new space. |
| 439 | __ mov(FieldOperand(receiver_reg, HeapObject::kMapOffset), |
| 440 | Immediate(Handle<Map>(transition))); |
| 441 | } |
| 442 | |
| 443 | // Write to the properties array. |
| 444 | int offset = index * kPointerSize + Array::kHeaderSize; |
| 445 | __ mov(FieldOperand(scratch, offset), eax); |
| 446 | |
| 447 | // Update the write barrier for the array address. |
| 448 | // Pass the value being stored in the now unused name_reg. |
| 449 | __ mov(name_reg, Operand(eax)); |
| 450 | __ RecordWrite(scratch, offset, name_reg, receiver_reg); |
| 451 | |
| 452 | // Return the value (register eax). |
| 453 | __ ret(0); |
| 454 | } |
| 455 | |
| 456 | |
| 457 | #undef __ |
| 458 | |
| 459 | #define __ masm()-> |
| 460 | |
| 461 | |
| 462 | // TODO(1241006): Avoid having lazy compile stubs specialized by the |
| 463 | // number of arguments. It is not needed anymore. |
| 464 | Object* StubCompiler::CompileLazyCompile(Code::Flags flags) { |
| 465 | HandleScope scope; |
| 466 | |
| 467 | // Enter an internal frame. |
| 468 | __ EnterFrame(StackFrame::INTERNAL); |
| 469 | |
| 470 | // Push a copy of the function onto the stack. |
| 471 | __ push(edi); |
| 472 | |
| 473 | __ push(edi); // function is also the parameter to the runtime call |
| 474 | __ CallRuntime(Runtime::kLazyCompile, 1); |
| 475 | __ pop(edi); |
| 476 | |
| 477 | __ ExitFrame(StackFrame::INTERNAL); |
| 478 | |
| 479 | // Do a tail-call of the compiled function. |
| 480 | __ lea(ecx, FieldOperand(eax, Code::kHeaderSize)); |
| 481 | __ jmp(Operand(ecx)); |
| 482 | |
| 483 | return GetCodeWithFlags(flags); |
| 484 | } |
| 485 | |
| 486 | |
| 487 | Object* CallStubCompiler::CompileCallField(Object* object, |
| 488 | JSObject* holder, |
| 489 | int index) { |
| 490 | // ----------- S t a t e ------------- |
| 491 | // ----------------------------------- |
| 492 | |
| 493 | HandleScope scope; |
| 494 | Label miss; |
| 495 | |
| 496 | // Get the receiver from the stack. |
| 497 | const int argc = arguments().immediate(); |
| 498 | __ mov(edx, Operand(esp, (argc + 1) * kPointerSize)); |
| 499 | |
| 500 | // Check that the receiver isn't a smi. |
| 501 | __ test(edx, Immediate(kSmiTagMask)); |
| 502 | __ j(zero, &miss, not_taken); |
| 503 | |
| 504 | // Do the right check and compute the holder register. |
| 505 | Register reg = |
| 506 | __ CheckMaps(JSObject::cast(object), edx, holder, ebx, ecx, &miss); |
| 507 | |
| 508 | // Get the properties array of the holder and get the function from the field. |
| 509 | int offset = index * kPointerSize + Array::kHeaderSize; |
| 510 | __ mov(edi, FieldOperand(reg, JSObject::kPropertiesOffset)); |
| 511 | __ mov(edi, FieldOperand(edi, offset)); |
| 512 | |
| 513 | // Check that the function really is a function. |
| 514 | __ test(edi, Immediate(kSmiTagMask)); |
| 515 | __ j(zero, &miss, not_taken); |
| 516 | __ mov(ebx, FieldOperand(edi, HeapObject::kMapOffset)); // get the map |
| 517 | __ movzx_b(ebx, FieldOperand(ebx, Map::kInstanceTypeOffset)); |
| 518 | __ cmp(ebx, JS_FUNCTION_TYPE); |
| 519 | __ j(not_equal, &miss, not_taken); |
| 520 | |
| 521 | // Invoke the function. |
| 522 | __ InvokeFunction(edi, arguments(), JUMP_FUNCTION); |
| 523 | |
| 524 | // Handle call cache miss. |
| 525 | __ bind(&miss); |
| 526 | Handle<Code> ic = ComputeCallMiss(arguments().immediate()); |
| 527 | __ jmp(ic, code_target); |
| 528 | |
| 529 | // Return the generated code. |
| 530 | return GetCode(FIELD); |
| 531 | } |
| 532 | |
| 533 | |
| 534 | Object* CallStubCompiler::CompileCallConstant(Object* object, |
| 535 | JSObject* holder, |
| 536 | JSFunction* function, |
| 537 | CheckType check) { |
| 538 | // ----------- S t a t e ------------- |
| 539 | // ----------------------------------- |
| 540 | |
| 541 | HandleScope scope; |
| 542 | Label miss; |
| 543 | |
| 544 | // Get the receiver from the stack. |
| 545 | const int argc = arguments().immediate(); |
| 546 | __ mov(edx, Operand(esp, (argc + 1) * kPointerSize)); |
| 547 | |
| 548 | // Check that the receiver isn't a smi. |
| 549 | if (check != NUMBER_CHECK) { |
| 550 | __ test(edx, Immediate(kSmiTagMask)); |
| 551 | __ j(zero, &miss, not_taken); |
| 552 | } |
| 553 | |
| 554 | switch (check) { |
| 555 | case RECEIVER_MAP_CHECK: |
| 556 | // Check that the maps haven't changed. |
| 557 | __ CheckMaps(JSObject::cast(object), edx, holder, ebx, ecx, &miss); |
| 558 | break; |
| 559 | |
| 560 | case STRING_CHECK: |
| 561 | // Check that the object is a two-byte string or a symbol. |
| 562 | __ mov(ecx, FieldOperand(edx, HeapObject::kMapOffset)); |
| 563 | __ movzx_b(ecx, FieldOperand(ecx, Map::kInstanceTypeOffset)); |
| 564 | __ cmp(ecx, FIRST_NONSTRING_TYPE); |
| 565 | __ j(above_equal, &miss, not_taken); |
| 566 | // Check that the maps starting from the prototype haven't changed. |
| 567 | GenerateLoadGlobalFunctionPrototype(masm(), |
| 568 | Context::STRING_FUNCTION_INDEX, |
| 569 | ecx); |
| 570 | __ CheckMaps(JSObject::cast(object->GetPrototype()), |
| 571 | ecx, holder, ebx, edx, &miss); |
| 572 | break; |
| 573 | |
| 574 | case NUMBER_CHECK: { |
| 575 | Label fast; |
| 576 | // Check that the object is a smi or a heap number. |
| 577 | __ test(edx, Immediate(kSmiTagMask)); |
| 578 | __ j(zero, &fast, taken); |
| 579 | __ mov(ecx, FieldOperand(edx, HeapObject::kMapOffset)); |
| 580 | __ movzx_b(ecx, FieldOperand(ecx, Map::kInstanceTypeOffset)); |
| 581 | __ cmp(ecx, HEAP_NUMBER_TYPE); |
| 582 | __ j(not_equal, &miss, not_taken); |
| 583 | __ bind(&fast); |
| 584 | // Check that the maps starting from the prototype haven't changed. |
| 585 | GenerateLoadGlobalFunctionPrototype(masm(), |
| 586 | Context::NUMBER_FUNCTION_INDEX, |
| 587 | ecx); |
| 588 | __ CheckMaps(JSObject::cast(object->GetPrototype()), |
| 589 | ecx, holder, ebx, edx, &miss); |
| 590 | break; |
| 591 | } |
| 592 | |
| 593 | case BOOLEAN_CHECK: { |
| 594 | Label fast; |
| 595 | // Check that the object is a boolean. |
| 596 | __ cmp(edx, Factory::true_value()); |
| 597 | __ j(equal, &fast, taken); |
| 598 | __ cmp(edx, Factory::false_value()); |
| 599 | __ j(not_equal, &miss, not_taken); |
| 600 | __ bind(&fast); |
| 601 | // Check that the maps starting from the prototype haven't changed. |
| 602 | GenerateLoadGlobalFunctionPrototype(masm(), |
| 603 | Context::BOOLEAN_FUNCTION_INDEX, |
| 604 | ecx); |
| 605 | __ CheckMaps(JSObject::cast(object->GetPrototype()), |
| 606 | ecx, holder, ebx, edx, &miss); |
| 607 | break; |
| 608 | } |
| 609 | |
| 610 | case JSARRAY_HAS_FAST_ELEMENTS_CHECK: |
| 611 | __ CheckMaps(JSObject::cast(object), edx, holder, ebx, ecx, &miss); |
| 612 | // Make sure object->elements()->map() != Heap::dictionary_array_map() |
| 613 | // Get the elements array of the object. |
| 614 | __ mov(ebx, FieldOperand(edx, JSObject::kElementsOffset)); |
| 615 | // Check that the object is in fast mode (not dictionary). |
| 616 | __ cmp(FieldOperand(ebx, HeapObject::kMapOffset), |
| 617 | Immediate(Factory::hash_table_map())); |
| 618 | __ j(equal, &miss, not_taken); |
| 619 | break; |
| 620 | |
| 621 | default: |
| 622 | UNREACHABLE(); |
| 623 | } |
| 624 | |
| 625 | // Get the function and setup the context. |
| 626 | __ mov(Operand(edi), Immediate(Handle<JSFunction>(function))); |
| 627 | __ mov(esi, FieldOperand(edi, JSFunction::kContextOffset)); |
| 628 | |
| 629 | // Jump to the cached code (tail call). |
| 630 | Handle<Code> code(function->code()); |
| 631 | ParameterCount expected(function->shared()->formal_parameter_count()); |
| 632 | __ InvokeCode(code, expected, arguments(), code_target, JUMP_FUNCTION); |
| 633 | |
| 634 | // Handle call cache miss. |
| 635 | __ bind(&miss); |
| 636 | Handle<Code> ic = ComputeCallMiss(arguments().immediate()); |
| 637 | __ jmp(ic, code_target); |
| 638 | |
| 639 | // Return the generated code. |
| 640 | return GetCode(CONSTANT_FUNCTION); |
| 641 | } |
| 642 | |
| 643 | |
| 644 | Object* CallStubCompiler::CompileCallInterceptor(Object* object, |
| 645 | JSObject* holder, |
| 646 | String* name) { |
| 647 | // ----------- S t a t e ------------- |
| 648 | // ----------------------------------- |
| 649 | |
| 650 | HandleScope scope; |
| 651 | Label miss; |
| 652 | |
| 653 | // Get the number of arguments. |
| 654 | const int argc = arguments().immediate(); |
| 655 | |
| 656 | // Get the receiver from the stack. |
| 657 | __ mov(edx, Operand(esp, (argc + 1) * kPointerSize)); |
| 658 | // Check that the receiver isn't a smi. |
| 659 | __ test(edx, Immediate(kSmiTagMask)); |
| 660 | __ j(zero, &miss, not_taken); |
| 661 | |
| 662 | // Check that maps have not changed and compute the holder register. |
| 663 | Register reg = |
| 664 | __ CheckMaps(JSObject::cast(object), edx, holder, ebx, ecx, &miss); |
| 665 | |
| 666 | // Enter an internal frame. |
| 667 | __ EnterFrame(StackFrame::INTERNAL); |
| 668 | |
| 669 | // Push arguments on the expression stack. |
| 670 | __ push(edx); // receiver |
| 671 | __ push(reg); // holder |
| 672 | __ push(Operand(ebp, (argc + 3) * kPointerSize)); // name |
| 673 | |
| 674 | // Perform call. |
| 675 | __ mov(Operand(eax), Immediate(2)); // 2 arguments w/o receiver |
| 676 | ExternalReference load_interceptor = |
| 677 | ExternalReference(IC_Utility(IC::kLoadInterceptorProperty)); |
| 678 | __ mov(Operand(ebx), Immediate(load_interceptor)); |
| 679 | |
| 680 | CEntryStub stub; |
| 681 | __ CallStub(&stub); |
| 682 | |
| 683 | // Move result to edi and restore receiver. |
| 684 | __ mov(Operand(edi), eax); |
| 685 | __ mov(edx, Operand(ebp, (argc + 2) * kPointerSize)); // receiver |
| 686 | |
| 687 | // Exit frame. |
| 688 | __ ExitFrame(StackFrame::INTERNAL); |
| 689 | |
| 690 | // Check that the function really is a function. |
| 691 | __ test(edi, Immediate(kSmiTagMask)); |
| 692 | __ j(zero, &miss, not_taken); |
| 693 | __ mov(ebx, FieldOperand(edi, HeapObject::kMapOffset)); |
| 694 | __ movzx_b(ebx, FieldOperand(ebx, Map::kInstanceTypeOffset)); |
| 695 | __ cmp(ebx, JS_FUNCTION_TYPE); |
| 696 | __ j(not_equal, &miss, not_taken); |
| 697 | |
| 698 | // Invoke the function. |
| 699 | __ InvokeFunction(edi, arguments(), JUMP_FUNCTION); |
| 700 | |
| 701 | // Handle load cache miss. |
| 702 | __ bind(&miss); |
| 703 | Handle<Code> ic = ComputeCallMiss(argc); |
| 704 | __ jmp(ic, code_target); |
| 705 | |
| 706 | // Return the generated code. |
| 707 | return GetCode(INTERCEPTOR); |
| 708 | } |
| 709 | |
| 710 | |
| 711 | Object* StoreStubCompiler::CompileStoreField(JSObject* object, |
| 712 | int index, |
| 713 | Map* transition, |
| 714 | String* name) { |
| 715 | // ----------- S t a t e ------------- |
| 716 | // -- eax : value |
| 717 | // -- ecx : name |
| 718 | // -- esp[0] : return address |
| 719 | // -- esp[4] : receiver |
| 720 | // ----------------------------------- |
| 721 | |
| 722 | HandleScope scope; |
| 723 | Label miss; |
| 724 | |
| 725 | // Get the object from the stack. |
| 726 | __ mov(ebx, Operand(esp, 1 * kPointerSize)); |
| 727 | |
| 728 | // Generate store field code. Trashes the name register. |
| 729 | GenerateStoreField(masm(), object, index, transition, ebx, ecx, edx, &miss); |
| 730 | |
| 731 | // Handle store cache miss. |
| 732 | __ bind(&miss); |
| 733 | __ mov(Operand(ecx), Immediate(Handle<String>(name))); // restore name |
| 734 | Handle<Code> ic(Builtins::builtin(Builtins::StoreIC_Miss)); |
| 735 | __ jmp(ic, code_target); |
| 736 | |
| 737 | // Return the generated code. |
| 738 | return GetCode(transition == NULL ? FIELD : MAP_TRANSITION); |
| 739 | } |
| 740 | |
| 741 | |
| 742 | Object* StoreStubCompiler::CompileStoreCallback(JSObject* object, |
| 743 | AccessorInfo* callback, |
| 744 | String* name) { |
| 745 | // ----------- S t a t e ------------- |
| 746 | // -- eax : value |
| 747 | // -- ecx : name |
| 748 | // -- esp[0] : return address |
| 749 | // -- esp[4] : receiver |
| 750 | // ----------------------------------- |
| 751 | |
| 752 | HandleScope scope; |
| 753 | Label miss; |
| 754 | |
| 755 | // Get the object from the stack. |
| 756 | __ mov(ebx, Operand(esp, 1 * kPointerSize)); |
| 757 | |
| 758 | // Check that the object isn't a smi. |
| 759 | __ test(ebx, Immediate(kSmiTagMask)); |
| 760 | __ j(zero, &miss, not_taken); |
| 761 | |
| 762 | // Check that the map of the object hasn't changed. |
| 763 | __ cmp(FieldOperand(ebx, HeapObject::kMapOffset), |
| 764 | Immediate(Handle<Map>(object->map()))); |
| 765 | __ j(not_equal, &miss, not_taken); |
| 766 | |
| 767 | // Perform global security token check if needed. |
| 768 | if (object->IsJSGlobalObject()) { |
| 769 | __ CheckAccessGlobal(ebx, edx, &miss); |
| 770 | } |
| 771 | |
| 772 | // Stub never generated for non-global objects that require access |
| 773 | // checks. |
| 774 | ASSERT(object->IsJSGlobalObject() || !object->IsAccessCheckNeeded()); |
| 775 | |
| 776 | __ pop(ebx); // remove the return address |
| 777 | __ push(Operand(esp, 0)); // receiver |
| 778 | __ push(Immediate(Handle<AccessorInfo>(callback))); // callback info |
| 779 | __ push(ecx); // name |
| 780 | __ push(eax); // value |
| 781 | __ push(ebx); // restore return address |
| 782 | |
| 783 | // Do tail-call to the C builtin. |
| 784 | __ mov(eax, 3); // not counting receiver |
| 785 | __ JumpToBuiltin(ExternalReference(IC_Utility(IC::kStoreCallbackProperty))); |
| 786 | |
| 787 | // Handle store cache miss. |
| 788 | __ bind(&miss); |
| 789 | __ mov(Operand(ecx), Immediate(Handle<String>(name))); // restore name |
| 790 | Handle<Code> ic(Builtins::builtin(Builtins::StoreIC_Miss)); |
| 791 | __ jmp(ic, code_target); |
| 792 | |
| 793 | // Return the generated code. |
| 794 | return GetCode(CALLBACKS); |
| 795 | } |
| 796 | |
| 797 | |
| 798 | Object* StoreStubCompiler::CompileStoreInterceptor(JSObject* receiver, |
| 799 | String* name) { |
| 800 | // ----------- S t a t e ------------- |
| 801 | // -- eax : value |
| 802 | // -- ecx : name |
| 803 | // -- esp[0] : return address |
| 804 | // -- esp[4] : receiver |
| 805 | // ----------------------------------- |
| 806 | |
| 807 | HandleScope scope; |
| 808 | Label miss; |
| 809 | |
| 810 | // Get the object from the stack. |
| 811 | __ mov(ebx, Operand(esp, 1 * kPointerSize)); |
| 812 | |
| 813 | // Check that the object isn't a smi. |
| 814 | __ test(ebx, Immediate(kSmiTagMask)); |
| 815 | __ j(zero, &miss, not_taken); |
| 816 | |
| 817 | // Check that the map of the object hasn't changed. |
| 818 | __ cmp(FieldOperand(ebx, HeapObject::kMapOffset), |
| 819 | Immediate(Handle<Map>(receiver->map()))); |
| 820 | __ j(not_equal, &miss, not_taken); |
| 821 | |
| 822 | // Perform global security token check if needed. |
| 823 | if (receiver->IsJSGlobalObject()) { |
| 824 | __ CheckAccessGlobal(ebx, edx, &miss); |
| 825 | } |
| 826 | |
| 827 | // Stub never generated for non-global objects that require access |
| 828 | // checks. |
| 829 | ASSERT(receiver->IsJSGlobalObject() || !receiver->IsAccessCheckNeeded()); |
| 830 | |
| 831 | __ pop(ebx); // remove the return address |
| 832 | __ push(Operand(esp, 0)); // receiver |
| 833 | __ push(ecx); // name |
| 834 | __ push(eax); // value |
| 835 | __ push(ebx); // restore return address |
| 836 | |
| 837 | // Do tail-call to the C builtin. |
| 838 | __ mov(eax, 2); // not counting receiver |
| 839 | ExternalReference store_interceptor = |
| 840 | ExternalReference(IC_Utility(IC::kStoreInterceptorProperty)); |
| 841 | __ JumpToBuiltin(store_interceptor); |
| 842 | |
| 843 | // Handle store cache miss. |
| 844 | __ bind(&miss); |
| 845 | __ mov(Operand(ecx), Immediate(Handle<String>(name))); // restore name |
| 846 | Handle<Code> ic(Builtins::builtin(Builtins::StoreIC_Miss)); |
| 847 | __ jmp(ic, code_target); |
| 848 | |
| 849 | // Return the generated code. |
| 850 | return GetCode(INTERCEPTOR); |
| 851 | } |
| 852 | |
| 853 | |
| 854 | Object* KeyedStoreStubCompiler::CompileStoreField(JSObject* object, |
| 855 | int index, |
| 856 | Map* transition, |
| 857 | String* name) { |
| 858 | // ----------- S t a t e ------------- |
| 859 | // -- eax : value |
| 860 | // -- esp[0] : return address |
| 861 | // -- esp[4] : key |
| 862 | // -- esp[8] : receiver |
| 863 | // ----------------------------------- |
| 864 | HandleScope scope; |
| 865 | Label miss; |
| 866 | |
| 867 | __ IncrementCounter(&Counters::keyed_store_field, 1); |
| 868 | |
| 869 | // Get the name from the stack. |
| 870 | __ mov(ecx, Operand(esp, 1 * kPointerSize)); |
| 871 | // Check that the name has not changed. |
| 872 | __ cmp(Operand(ecx), Immediate(Handle<String>(name))); |
| 873 | __ j(not_equal, &miss, not_taken); |
| 874 | |
| 875 | // Get the object from the stack. |
| 876 | __ mov(ebx, Operand(esp, 2 * kPointerSize)); |
| 877 | |
| 878 | // Generate store field code. Trashes the name register. |
| 879 | GenerateStoreField(masm(), object, index, transition, ebx, ecx, edx, &miss); |
| 880 | |
| 881 | // Handle store cache miss. |
| 882 | __ bind(&miss); |
| 883 | __ DecrementCounter(&Counters::keyed_store_field, 1); |
| 884 | Handle<Code> ic(Builtins::builtin(Builtins::KeyedStoreIC_Miss)); |
| 885 | __ jmp(ic, code_target); |
| 886 | |
| 887 | // Return the generated code. |
| 888 | return GetCode(transition == NULL ? FIELD : MAP_TRANSITION); |
| 889 | } |
| 890 | |
| 891 | |
| 892 | Object* LoadStubCompiler::CompileLoadField(JSObject* object, |
| 893 | JSObject* holder, |
| 894 | int index) { |
| 895 | // ----------- S t a t e ------------- |
| 896 | // -- ecx : name |
| 897 | // -- esp[0] : return address |
| 898 | // -- esp[4] : receiver |
| 899 | // ----------------------------------- |
| 900 | |
| 901 | HandleScope scope; |
| 902 | Label miss; |
| 903 | |
| 904 | __ mov(eax, (Operand(esp, kPointerSize))); |
| 905 | GenerateLoadField(masm(), object, holder, eax, ebx, edx, index, &miss); |
| 906 | __ bind(&miss); |
| 907 | GenerateLoadMiss(masm(), Code::LOAD_IC); |
| 908 | |
| 909 | // Return the generated code. |
| 910 | return GetCode(FIELD); |
| 911 | } |
| 912 | |
| 913 | |
| 914 | Object* LoadStubCompiler::CompileLoadCallback(JSObject* object, |
| 915 | JSObject* holder, |
| 916 | AccessorInfo* callback) { |
| 917 | // ----------- S t a t e ------------- |
| 918 | // -- ecx : name |
| 919 | // -- esp[0] : return address |
| 920 | // -- esp[4] : receiver |
| 921 | // ----------------------------------- |
| 922 | |
| 923 | HandleScope scope; |
| 924 | Label miss; |
| 925 | |
| 926 | __ mov(eax, (Operand(esp, kPointerSize))); |
| 927 | GenerateLoadCallback(masm(), object, holder, eax, ecx, ebx, |
| 928 | edx, callback, &miss); |
| 929 | __ bind(&miss); |
| 930 | GenerateLoadMiss(masm(), Code::LOAD_IC); |
| 931 | |
| 932 | // Return the generated code. |
| 933 | return GetCode(CALLBACKS); |
| 934 | } |
| 935 | |
| 936 | |
| 937 | Object* LoadStubCompiler::CompileLoadConstant(JSObject* object, |
| 938 | JSObject* holder, |
| 939 | Object* value) { |
| 940 | // ----------- S t a t e ------------- |
| 941 | // -- ecx : name |
| 942 | // -- esp[0] : return address |
| 943 | // -- esp[4] : receiver |
| 944 | // ----------------------------------- |
| 945 | |
| 946 | HandleScope scope; |
| 947 | Label miss; |
| 948 | |
| 949 | __ mov(eax, (Operand(esp, kPointerSize))); |
| 950 | GenerateLoadConstant(masm(), object, holder, eax, ebx, edx, value, &miss); |
| 951 | __ bind(&miss); |
| 952 | GenerateLoadMiss(masm(), Code::LOAD_IC); |
| 953 | |
| 954 | // Return the generated code. |
| 955 | return GetCode(CONSTANT_FUNCTION); |
| 956 | } |
| 957 | |
| 958 | |
| 959 | Object* LoadStubCompiler::CompileLoadInterceptor(JSObject* receiver, |
| 960 | JSObject* holder, |
| 961 | String* name) { |
| 962 | // ----------- S t a t e ------------- |
| 963 | // -- ecx : name |
| 964 | // -- esp[0] : return address |
| 965 | // -- esp[4] : receiver |
| 966 | // ----------------------------------- |
| 967 | HandleScope scope; |
| 968 | Label miss; |
| 969 | |
| 970 | __ mov(eax, (Operand(esp, kPointerSize))); |
| 971 | GenerateLoadInterceptor(masm(), receiver, holder, eax, ecx, edx, ebx, &miss); |
| 972 | __ bind(&miss); |
| 973 | GenerateLoadMiss(masm(), Code::LOAD_IC); |
| 974 | |
| 975 | // Return the generated code. |
| 976 | return GetCode(INTERCEPTOR); |
| 977 | } |
| 978 | |
| 979 | |
| 980 | Object* KeyedLoadStubCompiler::CompileLoadField(String* name, |
| 981 | JSObject* receiver, |
| 982 | JSObject* holder, |
| 983 | int index) { |
| 984 | // ----------- S t a t e ------------- |
| 985 | // -- esp[0] : return address |
| 986 | // -- esp[4] : name |
| 987 | // -- esp[8] : receiver |
| 988 | // ----------------------------------- |
| 989 | HandleScope scope; |
| 990 | Label miss; |
| 991 | |
| 992 | __ mov(eax, (Operand(esp, kPointerSize))); |
| 993 | __ mov(ecx, (Operand(esp, 2 * kPointerSize))); |
| 994 | __ IncrementCounter(&Counters::keyed_load_field, 1); |
| 995 | |
| 996 | // Check that the name has not changed. |
| 997 | __ cmp(Operand(eax), Immediate(Handle<String>(name))); |
| 998 | __ j(not_equal, &miss, not_taken); |
| 999 | |
| 1000 | GenerateLoadField(masm(), receiver, holder, ecx, ebx, edx, index, &miss); |
| 1001 | __ bind(&miss); |
| 1002 | __ DecrementCounter(&Counters::keyed_load_field, 1); |
| 1003 | GenerateLoadMiss(masm(), Code::KEYED_LOAD_IC); |
| 1004 | |
| 1005 | // Return the generated code. |
| 1006 | return GetCode(FIELD); |
| 1007 | } |
| 1008 | |
| 1009 | |
| 1010 | Object* KeyedLoadStubCompiler::CompileLoadCallback(String* name, |
| 1011 | JSObject* receiver, |
| 1012 | JSObject* holder, |
| 1013 | AccessorInfo* callback) { |
| 1014 | // ----------- S t a t e ------------- |
| 1015 | // -- esp[0] : return address |
| 1016 | // -- esp[4] : name |
| 1017 | // -- esp[8] : receiver |
| 1018 | // ----------------------------------- |
| 1019 | HandleScope scope; |
| 1020 | Label miss; |
| 1021 | |
| 1022 | __ mov(eax, (Operand(esp, kPointerSize))); |
| 1023 | __ mov(ecx, (Operand(esp, 2 * kPointerSize))); |
| 1024 | __ IncrementCounter(&Counters::keyed_load_callback, 1); |
| 1025 | |
| 1026 | // Check that the name has not changed. |
| 1027 | __ cmp(Operand(eax), Immediate(Handle<String>(name))); |
| 1028 | __ j(not_equal, &miss, not_taken); |
| 1029 | |
| 1030 | GenerateLoadCallback(masm(), receiver, holder, ecx, eax, ebx, edx, |
| 1031 | callback, &miss); |
| 1032 | __ bind(&miss); |
| 1033 | __ DecrementCounter(&Counters::keyed_load_callback, 1); |
| 1034 | GenerateLoadMiss(masm(), Code::KEYED_LOAD_IC); |
| 1035 | |
| 1036 | // Return the generated code. |
| 1037 | return GetCode(CALLBACKS); |
| 1038 | } |
| 1039 | |
| 1040 | |
| 1041 | Object* KeyedLoadStubCompiler::CompileLoadConstant(String* name, |
| 1042 | JSObject* receiver, |
| 1043 | JSObject* holder, |
| 1044 | Object* value) { |
| 1045 | // ----------- S t a t e ------------- |
| 1046 | // -- esp[0] : return address |
| 1047 | // -- esp[4] : name |
| 1048 | // -- esp[8] : receiver |
| 1049 | // ----------------------------------- |
| 1050 | HandleScope scope; |
| 1051 | Label miss; |
| 1052 | |
| 1053 | __ mov(eax, (Operand(esp, kPointerSize))); |
| 1054 | __ mov(ecx, (Operand(esp, 2 * kPointerSize))); |
| 1055 | __ IncrementCounter(&Counters::keyed_load_constant_function, 1); |
| 1056 | |
| 1057 | // Check that the name has not changed. |
| 1058 | __ cmp(Operand(eax), Immediate(Handle<String>(name))); |
| 1059 | __ j(not_equal, &miss, not_taken); |
| 1060 | |
| 1061 | GenerateLoadConstant(masm(), receiver, holder, ecx, ebx, edx, value, &miss); |
| 1062 | __ bind(&miss); |
| 1063 | __ DecrementCounter(&Counters::keyed_load_constant_function, 1); |
| 1064 | GenerateLoadMiss(masm(), Code::KEYED_LOAD_IC); |
| 1065 | |
| 1066 | // Return the generated code. |
| 1067 | return GetCode(CONSTANT_FUNCTION); |
| 1068 | } |
| 1069 | |
| 1070 | |
| 1071 | Object* KeyedLoadStubCompiler::CompileLoadInterceptor(JSObject* receiver, |
| 1072 | JSObject* holder, |
| 1073 | String* name) { |
| 1074 | // ----------- S t a t e ------------- |
| 1075 | // -- esp[0] : return address |
| 1076 | // -- esp[4] : name |
| 1077 | // -- esp[8] : receiver |
| 1078 | // ----------------------------------- |
| 1079 | HandleScope scope; |
| 1080 | Label miss; |
| 1081 | |
| 1082 | __ mov(eax, (Operand(esp, kPointerSize))); |
| 1083 | __ mov(ecx, (Operand(esp, 2 * kPointerSize))); |
| 1084 | __ IncrementCounter(&Counters::keyed_load_interceptor, 1); |
| 1085 | |
| 1086 | // Check that the name has not changed. |
| 1087 | __ cmp(Operand(eax), Immediate(Handle<String>(name))); |
| 1088 | __ j(not_equal, &miss, not_taken); |
| 1089 | |
| 1090 | GenerateLoadInterceptor(masm(), receiver, holder, ecx, eax, edx, ebx, &miss); |
| 1091 | __ bind(&miss); |
| 1092 | __ DecrementCounter(&Counters::keyed_load_interceptor, 1); |
| 1093 | GenerateLoadMiss(masm(), Code::KEYED_LOAD_IC); |
| 1094 | |
| 1095 | // Return the generated code. |
| 1096 | return GetCode(INTERCEPTOR); |
| 1097 | } |
| 1098 | |
| 1099 | |
| 1100 | |
| 1101 | |
| 1102 | Object* KeyedLoadStubCompiler::CompileLoadArrayLength(String* name) { |
| 1103 | // ----------- S t a t e ------------- |
| 1104 | // -- esp[0] : return address |
| 1105 | // -- esp[4] : name |
| 1106 | // -- esp[8] : receiver |
| 1107 | // ----------------------------------- |
| 1108 | HandleScope scope; |
| 1109 | Label miss; |
| 1110 | |
| 1111 | __ mov(eax, (Operand(esp, kPointerSize))); |
| 1112 | __ mov(ecx, (Operand(esp, 2 * kPointerSize))); |
| 1113 | __ IncrementCounter(&Counters::keyed_load_array_length, 1); |
| 1114 | |
| 1115 | // Check that the name has not changed. |
| 1116 | __ cmp(Operand(eax), Immediate(Handle<String>(name))); |
| 1117 | __ j(not_equal, &miss, not_taken); |
| 1118 | |
| 1119 | GenerateLoadArrayLength(masm(), ecx, edx, &miss); |
| 1120 | __ bind(&miss); |
| 1121 | __ DecrementCounter(&Counters::keyed_load_array_length, 1); |
| 1122 | GenerateLoadMiss(masm(), Code::KEYED_LOAD_IC); |
| 1123 | |
| 1124 | // Return the generated code. |
| 1125 | return GetCode(CALLBACKS); |
| 1126 | } |
| 1127 | |
| 1128 | |
| 1129 | Object* KeyedLoadStubCompiler::CompileLoadShortStringLength(String* name) { |
| 1130 | // ----------- S t a t e ------------- |
| 1131 | // -- esp[0] : return address |
| 1132 | // -- esp[4] : name |
| 1133 | // -- esp[8] : receiver |
| 1134 | // ----------------------------------- |
| 1135 | HandleScope scope; |
| 1136 | Label miss; |
| 1137 | |
| 1138 | __ mov(eax, (Operand(esp, kPointerSize))); |
| 1139 | __ mov(ecx, (Operand(esp, 2 * kPointerSize))); |
| 1140 | __ IncrementCounter(&Counters::keyed_load_string_length, 1); |
| 1141 | |
| 1142 | // Check that the name has not changed. |
| 1143 | __ cmp(Operand(eax), Immediate(Handle<String>(name))); |
| 1144 | __ j(not_equal, &miss, not_taken); |
| 1145 | |
| 1146 | GenerateLoadShortStringLength(masm(), ecx, edx, &miss); |
| 1147 | __ bind(&miss); |
| 1148 | __ DecrementCounter(&Counters::keyed_load_string_length, 1); |
| 1149 | GenerateLoadMiss(masm(), Code::KEYED_LOAD_IC); |
| 1150 | |
| 1151 | // Return the generated code. |
| 1152 | return GetCode(CALLBACKS); |
| 1153 | } |
| 1154 | |
| 1155 | |
| 1156 | Object* KeyedLoadStubCompiler::CompileLoadMediumStringLength(String* name) { |
| 1157 | // ----------- S t a t e ------------- |
| 1158 | // -- esp[0] : return address |
| 1159 | // -- esp[4] : name |
| 1160 | // -- esp[8] : receiver |
| 1161 | // ----------------------------------- |
| 1162 | HandleScope scope; |
| 1163 | Label miss; |
| 1164 | |
| 1165 | __ mov(eax, (Operand(esp, kPointerSize))); |
| 1166 | __ mov(ecx, (Operand(esp, 2 * kPointerSize))); |
| 1167 | __ IncrementCounter(&Counters::keyed_load_string_length, 1); |
| 1168 | |
| 1169 | // Check that the name has not changed. |
| 1170 | __ cmp(Operand(eax), Immediate(Handle<String>(name))); |
| 1171 | __ j(not_equal, &miss, not_taken); |
| 1172 | |
| 1173 | GenerateLoadMediumStringLength(masm(), ecx, edx, &miss); |
| 1174 | __ bind(&miss); |
| 1175 | __ DecrementCounter(&Counters::keyed_load_string_length, 1); |
| 1176 | GenerateLoadMiss(masm(), Code::KEYED_LOAD_IC); |
| 1177 | |
| 1178 | // Return the generated code. |
| 1179 | return GetCode(CALLBACKS); |
| 1180 | } |
| 1181 | |
| 1182 | |
| 1183 | Object* KeyedLoadStubCompiler::CompileLoadLongStringLength(String* name) { |
| 1184 | // ----------- S t a t e ------------- |
| 1185 | // -- esp[0] : return address |
| 1186 | // -- esp[4] : name |
| 1187 | // -- esp[8] : receiver |
| 1188 | // ----------------------------------- |
| 1189 | HandleScope scope; |
| 1190 | Label miss; |
| 1191 | |
| 1192 | __ mov(eax, (Operand(esp, kPointerSize))); |
| 1193 | __ mov(ecx, (Operand(esp, 2 * kPointerSize))); |
| 1194 | __ IncrementCounter(&Counters::keyed_load_string_length, 1); |
| 1195 | |
| 1196 | // Check that the name has not changed. |
| 1197 | __ cmp(Operand(eax), Immediate(Handle<String>(name))); |
| 1198 | __ j(not_equal, &miss, not_taken); |
| 1199 | |
| 1200 | GenerateLoadLongStringLength(masm(), ecx, edx, &miss); |
| 1201 | __ bind(&miss); |
| 1202 | __ DecrementCounter(&Counters::keyed_load_string_length, 1); |
| 1203 | GenerateLoadMiss(masm(), Code::KEYED_LOAD_IC); |
| 1204 | |
| 1205 | // Return the generated code. |
| 1206 | return GetCode(CALLBACKS); |
| 1207 | } |
| 1208 | |
| 1209 | |
| 1210 | Object* KeyedLoadStubCompiler::CompileLoadFunctionPrototype(String* name) { |
| 1211 | // ----------- S t a t e ------------- |
| 1212 | // -- esp[0] : return address |
| 1213 | // -- esp[4] : name |
| 1214 | // -- esp[8] : receiver |
| 1215 | // ----------------------------------- |
| 1216 | HandleScope scope; |
| 1217 | Label miss; |
| 1218 | |
| 1219 | __ mov(eax, (Operand(esp, kPointerSize))); |
| 1220 | __ mov(ecx, (Operand(esp, 2 * kPointerSize))); |
| 1221 | __ IncrementCounter(&Counters::keyed_load_function_prototype, 1); |
| 1222 | |
| 1223 | // Check that the name has not changed. |
| 1224 | __ cmp(Operand(eax), Immediate(Handle<String>(name))); |
| 1225 | __ j(not_equal, &miss, not_taken); |
| 1226 | |
| 1227 | GenerateLoadFunctionPrototype(masm(), ecx, edx, ebx, &miss); |
| 1228 | __ bind(&miss); |
| 1229 | __ DecrementCounter(&Counters::keyed_load_function_prototype, 1); |
| 1230 | GenerateLoadMiss(masm(), Code::KEYED_LOAD_IC); |
| 1231 | |
| 1232 | // Return the generated code. |
| 1233 | return GetCode(CALLBACKS); |
| 1234 | } |
| 1235 | |
| 1236 | |
| 1237 | #undef __ |
| 1238 | |
| 1239 | } } // namespace v8::internal |