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| 1 // Copyright 2006-2008 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 "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 __ ACCESS_MASM(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 __ mov(ip, Operand(key_offset)); | |
| 54 __ ldr(ip, MemOperand(ip, offset, LSL, 1)); | |
| 55 __ cmp(name, Operand(ip)); | |
| 56 __ b(ne, &miss); | |
| 57 | |
| 58 // Get the code entry from the cache. | |
| 59 __ mov(ip, Operand(value_offset)); | |
| 60 __ ldr(offset, MemOperand(ip, offset, LSL, 1)); | |
| 61 | |
| 62 // Check that the flags match what we're looking for. | |
| 63 __ ldr(offset, FieldMemOperand(offset, Code::kFlagsOffset)); | |
| 64 __ and_(offset, offset, Operand(~Code::kFlagsTypeMask)); | |
| 65 __ cmp(offset, Operand(flags)); | |
| 66 __ b(ne, &miss); | |
| 67 | |
| 68 // Restore offset and re-load code entry from cache. | |
| 69 __ pop(offset); | |
| 70 __ mov(ip, Operand(value_offset)); | |
| 71 __ ldr(offset, MemOperand(ip, offset, LSL, 1)); | |
| 72 | |
| 73 // Jump to the first instruction in the code stub. | |
| 74 __ add(offset, offset, Operand(Code::kHeaderSize - kHeapObjectTag)); | |
| 75 __ Jump(offset); | |
| 76 | |
| 77 // Miss: Restore offset and fall through. | |
| 78 __ bind(&miss); | |
| 79 __ pop(offset); | |
| 80 } | |
| 81 | |
| 82 | |
| 83 void StubCache::GenerateProbe(MacroAssembler* masm, | |
| 84 Code::Flags flags, | |
| 85 Register receiver, | |
| 86 Register name, | |
| 87 Register scratch) { | |
| 88 Label miss; | |
| 89 | |
| 90 // Make sure that code is valid. The shifting code relies on the | |
| 91 // entry size being 8. | |
| 92 ASSERT(sizeof(Entry) == 8); | |
| 93 | |
| 94 // Make sure the flags does not name a specific type. | |
| 95 ASSERT(Code::ExtractTypeFromFlags(flags) == 0); | |
| 96 | |
| 97 // Make sure that there are no register conflicts. | |
| 98 ASSERT(!scratch.is(receiver)); | |
| 99 ASSERT(!scratch.is(name)); | |
| 100 | |
| 101 // Check that the receiver isn't a smi. | |
| 102 __ tst(receiver, Operand(kSmiTagMask)); | |
| 103 __ b(eq, &miss); | |
| 104 | |
| 105 // Get the map of the receiver and compute the hash. | |
| 106 __ ldr(scratch, FieldMemOperand(name, String::kLengthOffset)); | |
| 107 __ ldr(ip, FieldMemOperand(receiver, HeapObject::kMapOffset)); | |
| 108 __ add(scratch, scratch, Operand(ip)); | |
| 109 __ eor(scratch, scratch, Operand(flags)); | |
| 110 __ and_(scratch, | |
| 111 scratch, | |
| 112 Operand((kPrimaryTableSize - 1) << kHeapObjectTagSize)); | |
| 113 | |
| 114 // Probe the primary table. | |
| 115 ProbeTable(masm, flags, kPrimary, name, scratch); | |
| 116 | |
| 117 // Primary miss: Compute hash for secondary probe. | |
| 118 __ sub(scratch, scratch, Operand(name)); | |
| 119 __ add(scratch, scratch, Operand(flags)); | |
| 120 __ and_(scratch, | |
| 121 scratch, | |
| 122 Operand((kSecondaryTableSize - 1) << kHeapObjectTagSize)); | |
| 123 | |
| 124 // Probe the secondary table. | |
| 125 ProbeTable(masm, flags, kSecondary, name, scratch); | |
| 126 | |
| 127 // Cache miss: Fall-through and let caller handle the miss by | |
| 128 // entering the runtime system. | |
| 129 __ bind(&miss); | |
| 130 } | |
| 131 | |
| 132 | |
| 133 void StubCompiler::GenerateLoadGlobalFunctionPrototype(MacroAssembler* masm, | |
| 134 int index, | |
| 135 Register prototype) { | |
| 136 // Load the global or builtins object from the current context. | |
| 137 __ ldr(prototype, MemOperand(cp, Context::SlotOffset(Context::GLOBAL_INDEX))); | |
| 138 // Load the global context from the global or builtins object. | |
| 139 __ ldr(prototype, | |
| 140 FieldMemOperand(prototype, GlobalObject::kGlobalContextOffset)); | |
| 141 // Load the function from the global context. | |
| 142 __ ldr(prototype, MemOperand(prototype, Context::SlotOffset(index))); | |
| 143 // Load the initial map. The global functions all have initial maps. | |
| 144 __ ldr(prototype, | |
| 145 FieldMemOperand(prototype, JSFunction::kPrototypeOrInitialMapOffset)); | |
| 146 // Load the prototype from the initial map. | |
| 147 __ ldr(prototype, FieldMemOperand(prototype, Map::kPrototypeOffset)); | |
| 148 } | |
| 149 | |
| 150 | |
| 151 // Load a fast property out of a holder object (src). In-object properties | |
| 152 // are loaded directly otherwise the property is loaded from the properties | |
| 153 // fixed array. | |
| 154 void StubCompiler::GenerateFastPropertyLoad(MacroAssembler* masm, | |
| 155 Register dst, Register src, | |
| 156 JSObject* holder, int index) { | |
| 157 // Adjust for the number of properties stored in the holder. | |
| 158 index -= holder->map()->inobject_properties(); | |
| 159 if (index < 0) { | |
| 160 // Get the property straight out of the holder. | |
| 161 int offset = holder->map()->instance_size() + (index * kPointerSize); | |
| 162 __ ldr(dst, FieldMemOperand(src, offset)); | |
| 163 } else { | |
| 164 // Calculate the offset into the properties array. | |
| 165 int offset = index * kPointerSize + Array::kHeaderSize; | |
| 166 __ ldr(dst, FieldMemOperand(src, JSObject::kPropertiesOffset)); | |
| 167 __ ldr(dst, FieldMemOperand(dst, offset)); | |
| 168 } | |
| 169 } | |
| 170 | |
| 171 | |
| 172 void StubCompiler::GenerateLoadField(MacroAssembler* masm, | |
| 173 JSObject* object, | |
| 174 JSObject* holder, | |
| 175 Register receiver, | |
| 176 Register scratch1, | |
| 177 Register scratch2, | |
| 178 int index, | |
| 179 Label* miss_label) { | |
| 180 // Check that the receiver isn't a smi. | |
| 181 __ tst(receiver, Operand(kSmiTagMask)); | |
| 182 __ b(eq, miss_label); | |
| 183 | |
| 184 // Check that the maps haven't changed. | |
| 185 Register reg = | |
| 186 masm->CheckMaps(object, receiver, holder, scratch1, scratch2, miss_label); | |
| 187 GenerateFastPropertyLoad(masm, r0, reg, holder, index); | |
| 188 __ Ret(); | |
| 189 } | |
| 190 | |
| 191 | |
| 192 void StubCompiler::GenerateLoadConstant(MacroAssembler* masm, | |
| 193 JSObject* object, | |
| 194 JSObject* holder, | |
| 195 Register receiver, | |
| 196 Register scratch1, | |
| 197 Register scratch2, | |
| 198 Object* value, | |
| 199 Label* miss_label) { | |
| 200 // Check that the receiver isn't a smi. | |
| 201 __ tst(receiver, Operand(kSmiTagMask)); | |
| 202 __ b(eq, miss_label); | |
| 203 | |
| 204 // Check that the maps haven't changed. | |
| 205 Register reg = | |
| 206 masm->CheckMaps(object, receiver, holder, scratch1, scratch2, miss_label); | |
| 207 | |
| 208 // Return the constant value. | |
| 209 __ mov(r0, Operand(Handle<Object>(value))); | |
| 210 __ Ret(); | |
| 211 } | |
| 212 | |
| 213 | |
| 214 void StubCompiler::GenerateLoadCallback(MacroAssembler* masm, | |
| 215 JSObject* object, | |
| 216 JSObject* holder, | |
| 217 Register receiver, | |
| 218 Register name, | |
| 219 Register scratch1, | |
| 220 Register scratch2, | |
| 221 AccessorInfo* callback, | |
| 222 Label* miss_label) { | |
| 223 // Check that the receiver isn't a smi. | |
| 224 __ tst(receiver, Operand(kSmiTagMask)); | |
| 225 __ b(eq, miss_label); | |
| 226 | |
| 227 // Check that the maps haven't changed. | |
| 228 Register reg = | |
| 229 masm->CheckMaps(object, receiver, holder, scratch1, scratch2, miss_label); | |
| 230 | |
| 231 // Push the arguments on the JS stack of the caller. | |
| 232 __ push(receiver); // receiver | |
| 233 __ mov(ip, Operand(Handle<AccessorInfo>(callback))); // callback data | |
| 234 __ push(ip); | |
| 235 __ push(name); // name | |
| 236 __ push(reg); // holder | |
| 237 | |
| 238 // Do tail-call to the runtime system. | |
| 239 ExternalReference load_callback_property = | |
| 240 ExternalReference(IC_Utility(IC::kLoadCallbackProperty)); | |
| 241 __ TailCallRuntime(load_callback_property, 4); | |
| 242 } | |
| 243 | |
| 244 | |
| 245 void StubCompiler::GenerateLoadInterceptor(MacroAssembler* masm, | |
| 246 JSObject* object, | |
| 247 JSObject* holder, | |
| 248 Register receiver, | |
| 249 Register name, | |
| 250 Register scratch1, | |
| 251 Register scratch2, | |
| 252 Label* miss_label) { | |
| 253 // Check that the receiver isn't a smi. | |
| 254 __ tst(receiver, Operand(kSmiTagMask)); | |
| 255 __ b(eq, miss_label); | |
| 256 | |
| 257 // Check that the maps haven't changed. | |
| 258 Register reg = | |
| 259 masm->CheckMaps(object, receiver, holder, scratch1, scratch2, miss_label); | |
| 260 | |
| 261 // Push the arguments on the JS stack of the caller. | |
| 262 __ push(receiver); // receiver | |
| 263 __ push(reg); // holder | |
| 264 __ push(name); // name | |
| 265 | |
| 266 // Do tail-call to the runtime system. | |
| 267 ExternalReference load_ic_property = | |
| 268 ExternalReference(IC_Utility(IC::kLoadInterceptorProperty)); | |
| 269 __ TailCallRuntime(load_ic_property, 3); | |
| 270 } | |
| 271 | |
| 272 | |
| 273 void StubCompiler::GenerateLoadArrayLength(MacroAssembler* masm, | |
| 274 Register receiver, | |
| 275 Register scratch, | |
| 276 Label* miss_label) { | |
| 277 // Check that the receiver isn't a smi. | |
| 278 __ tst(receiver, Operand(kSmiTagMask)); | |
| 279 __ b(eq, miss_label); | |
| 280 | |
| 281 // Check that the object is a JS array. | |
| 282 __ ldr(scratch, FieldMemOperand(receiver, HeapObject::kMapOffset)); | |
| 283 __ ldrb(scratch, FieldMemOperand(scratch, Map::kInstanceTypeOffset)); | |
| 284 __ cmp(scratch, Operand(JS_ARRAY_TYPE)); | |
| 285 __ b(ne, miss_label); | |
| 286 | |
| 287 // Load length directly from the JS array. | |
| 288 __ ldr(r0, FieldMemOperand(receiver, JSArray::kLengthOffset)); | |
| 289 __ Ret(); | |
| 290 } | |
| 291 | |
| 292 | |
| 293 // Generate code to check if an object is a string. If the object is | |
| 294 // a string, the map's instance type is left in the scratch1 register. | |
| 295 static void GenerateStringCheck(MacroAssembler* masm, | |
| 296 Register receiver, | |
| 297 Register scratch1, | |
| 298 Register scratch2, | |
| 299 Label* smi, | |
| 300 Label* non_string_object) { | |
| 301 // Check that the receiver isn't a smi. | |
| 302 __ tst(receiver, Operand(kSmiTagMask)); | |
| 303 __ b(eq, smi); | |
| 304 | |
| 305 // Check that the object is a string. | |
| 306 __ ldr(scratch1, FieldMemOperand(receiver, HeapObject::kMapOffset)); | |
| 307 __ ldrb(scratch1, FieldMemOperand(scratch1, Map::kInstanceTypeOffset)); | |
| 308 __ and_(scratch2, scratch1, Operand(kIsNotStringMask)); | |
| 309 // The cast is to resolve the overload for the argument of 0x0. | |
| 310 __ cmp(scratch2, Operand(static_cast<int32_t>(kStringTag))); | |
| 311 __ b(ne, non_string_object); | |
| 312 } | |
| 313 | |
| 314 | |
| 315 // Generate code to load the length from a string object and return the length. | |
| 316 // If the receiver object is not a string or a wrapped string object the | |
| 317 // execution continues at the miss label. The register containing the | |
| 318 // receiver is potentially clobbered. | |
| 319 void StubCompiler::GenerateLoadStringLength2(MacroAssembler* masm, | |
| 320 Register receiver, | |
| 321 Register scratch1, | |
| 322 Register scratch2, | |
| 323 Label* miss) { | |
| 324 Label check_string, check_wrapper; | |
| 325 | |
| 326 __ bind(&check_string); | |
| 327 // Check if the object is a string leaving the instance type in the | |
| 328 // scratch1 register. | |
| 329 GenerateStringCheck(masm, receiver, scratch1, scratch2, | |
| 330 miss, &check_wrapper); | |
| 331 | |
| 332 // Load length directly from the string. | |
| 333 __ and_(scratch1, scratch1, Operand(kStringSizeMask)); | |
| 334 __ add(scratch1, scratch1, Operand(String::kHashShift)); | |
| 335 __ ldr(r0, FieldMemOperand(receiver, String::kLengthOffset)); | |
| 336 __ mov(r0, Operand(r0, LSR, scratch1)); | |
| 337 __ mov(r0, Operand(r0, LSL, kSmiTagSize)); | |
| 338 __ Ret(); | |
| 339 | |
| 340 // Check if the object is a JSValue wrapper. | |
| 341 __ bind(&check_wrapper); | |
| 342 __ cmp(scratch1, Operand(JS_VALUE_TYPE)); | |
| 343 __ b(ne, miss); | |
| 344 | |
| 345 // Unwrap the value in place and check if the wrapped value is a string. | |
| 346 __ ldr(receiver, FieldMemOperand(receiver, JSValue::kValueOffset)); | |
| 347 __ b(&check_string); | |
| 348 } | |
| 349 | |
| 350 | |
| 351 // Generate StoreField code, value is passed in r0 register. | |
| 352 // After executing generated code, the receiver_reg and name_reg | |
| 353 // may be clobbered. | |
| 354 void StubCompiler::GenerateStoreField(MacroAssembler* masm, | |
| 355 Builtins::Name storage_extend, | |
| 356 JSObject* object, | |
| 357 int index, | |
| 358 Map* transition, | |
| 359 Register receiver_reg, | |
| 360 Register name_reg, | |
| 361 Register scratch, | |
| 362 Label* miss_label) { | |
| 363 // r0 : value | |
| 364 Label exit; | |
| 365 | |
| 366 // Check that the receiver isn't a smi. | |
| 367 __ tst(receiver_reg, Operand(kSmiTagMask)); | |
| 368 __ b(eq, miss_label); | |
| 369 | |
| 370 // Check that the map of the receiver hasn't changed. | |
| 371 __ ldr(scratch, FieldMemOperand(receiver_reg, HeapObject::kMapOffset)); | |
| 372 __ cmp(scratch, Operand(Handle<Map>(object->map()))); | |
| 373 __ b(ne, miss_label); | |
| 374 | |
| 375 // Perform global security token check if needed. | |
| 376 if (object->IsJSGlobalProxy()) { | |
| 377 __ CheckAccessGlobalProxy(receiver_reg, scratch, miss_label); | |
| 378 } | |
| 379 | |
| 380 // Stub never generated for non-global objects that require access | |
| 381 // checks. | |
| 382 ASSERT(object->IsJSGlobalProxy() || !object->IsAccessCheckNeeded()); | |
| 383 | |
| 384 // Perform map transition for the receiver if necessary. | |
| 385 if ((transition != NULL) && (object->map()->unused_property_fields() == 0)) { | |
| 386 // The properties must be extended before we can store the value. | |
| 387 // We jump to a runtime call that extends the properties array. | |
| 388 __ mov(r2, Operand(Handle<Map>(transition))); | |
| 389 // Please note, if we implement keyed store for arm we need | |
| 390 // to call the Builtins::KeyedStoreIC_ExtendStorage. | |
| 391 Handle<Code> ic(Builtins::builtin(Builtins::StoreIC_ExtendStorage)); | |
| 392 __ Jump(ic, RelocInfo::CODE_TARGET); | |
| 393 return; | |
| 394 } | |
| 395 | |
| 396 if (transition != NULL) { | |
| 397 // Update the map of the object; no write barrier updating is | |
| 398 // needed because the map is never in new space. | |
| 399 __ mov(ip, Operand(Handle<Map>(transition))); | |
| 400 __ str(ip, FieldMemOperand(receiver_reg, HeapObject::kMapOffset)); | |
| 401 } | |
| 402 | |
| 403 // Adjust for the number of properties stored in the object. Even in the | |
| 404 // face of a transition we can use the old map here because the size of the | |
| 405 // object and the number of in-object properties is not going to change. | |
| 406 index -= object->map()->inobject_properties(); | |
| 407 | |
| 408 if (index < 0) { | |
| 409 // Set the property straight into the object. | |
| 410 int offset = object->map()->instance_size() + (index * kPointerSize); | |
| 411 __ str(r0, FieldMemOperand(receiver_reg, offset)); | |
| 412 | |
| 413 // Skip updating write barrier if storing a smi. | |
| 414 __ tst(r0, Operand(kSmiTagMask)); | |
| 415 __ b(eq, &exit); | |
| 416 | |
| 417 // Update the write barrier for the array address. | |
| 418 // Pass the value being stored in the now unused name_reg. | |
| 419 __ mov(name_reg, Operand(offset)); | |
| 420 __ RecordWrite(receiver_reg, name_reg, scratch); | |
| 421 } else { | |
| 422 // Write to the properties array. | |
| 423 int offset = index * kPointerSize + Array::kHeaderSize; | |
| 424 // Get the properties array | |
| 425 __ ldr(scratch, FieldMemOperand(receiver_reg, JSObject::kPropertiesOffset)); | |
| 426 __ str(r0, FieldMemOperand(scratch, offset)); | |
| 427 | |
| 428 // Skip updating write barrier if storing a smi. | |
| 429 __ tst(r0, Operand(kSmiTagMask)); | |
| 430 __ b(eq, &exit); | |
| 431 | |
| 432 // Update the write barrier for the array address. | |
| 433 // Ok to clobber receiver_reg and name_reg, since we return. | |
| 434 __ mov(name_reg, Operand(offset)); | |
| 435 __ RecordWrite(scratch, name_reg, receiver_reg); | |
| 436 } | |
| 437 | |
| 438 // Return the value (register r0). | |
| 439 __ bind(&exit); | |
| 440 __ Ret(); | |
| 441 } | |
| 442 | |
| 443 | |
| 444 void StubCompiler::GenerateLoadMiss(MacroAssembler* masm, Code::Kind kind) { | |
| 445 ASSERT(kind == Code::LOAD_IC || kind == Code::KEYED_LOAD_IC); | |
| 446 Code* code = NULL; | |
| 447 if (kind == Code::LOAD_IC) { | |
| 448 code = Builtins::builtin(Builtins::LoadIC_Miss); | |
| 449 } else { | |
| 450 code = Builtins::builtin(Builtins::KeyedLoadIC_Miss); | |
| 451 } | |
| 452 | |
| 453 Handle<Code> ic(code); | |
| 454 __ Jump(ic, RelocInfo::CODE_TARGET); | |
| 455 } | |
| 456 | |
| 457 | |
| 458 #undef __ | |
| 459 #define __ ACCESS_MASM(masm()) | |
| 460 | |
| 461 | |
| 462 Object* StubCompiler::CompileLazyCompile(Code::Flags flags) { | |
| 463 // ----------- S t a t e ------------- | |
| 464 // -- r1: function | |
| 465 // -- lr: return address | |
| 466 // ----------------------------------- | |
| 467 | |
| 468 // Enter an internal frame. | |
| 469 __ EnterInternalFrame(); | |
| 470 | |
| 471 // Preserve the function. | |
| 472 __ push(r1); | |
| 473 | |
| 474 // Push the function on the stack as the argument to the runtime function. | |
| 475 __ push(r1); | |
| 476 __ CallRuntime(Runtime::kLazyCompile, 1); | |
| 477 | |
| 478 // Calculate the entry point. | |
| 479 __ add(r2, r0, Operand(Code::kHeaderSize - kHeapObjectTag)); | |
| 480 | |
| 481 // Restore saved function. | |
| 482 __ pop(r1); | |
| 483 | |
| 484 // Tear down temporary frame. | |
| 485 __ LeaveInternalFrame(); | |
| 486 | |
| 487 // Do a tail-call of the compiled function. | |
| 488 __ Jump(r2); | |
| 489 | |
| 490 return GetCodeWithFlags(flags, "LazyCompileStub"); | |
| 491 } | |
| 492 | |
| 493 | |
| 494 Object* CallStubCompiler::CompileCallField(Object* object, | |
| 495 JSObject* holder, | |
| 496 int index, | |
| 497 String* name) { | |
| 498 // ----------- S t a t e ------------- | |
| 499 // -- lr: return address | |
| 500 // ----------------------------------- | |
| 501 Label miss; | |
| 502 | |
| 503 const int argc = arguments().immediate(); | |
| 504 | |
| 505 // Get the receiver of the function from the stack into r0. | |
| 506 __ ldr(r0, MemOperand(sp, argc * kPointerSize)); | |
| 507 // Check that the receiver isn't a smi. | |
| 508 __ tst(r0, Operand(kSmiTagMask)); | |
| 509 __ b(eq, &miss); | |
| 510 | |
| 511 // Do the right check and compute the holder register. | |
| 512 Register reg = | |
| 513 masm()->CheckMaps(JSObject::cast(object), r0, holder, r3, r2, &miss); | |
| 514 GenerateFastPropertyLoad(masm(), r1, reg, holder, index); | |
| 515 | |
| 516 // Check that the function really is a function. | |
| 517 __ tst(r1, Operand(kSmiTagMask)); | |
| 518 __ b(eq, &miss); | |
| 519 // Get the map. | |
| 520 __ ldr(r2, FieldMemOperand(r1, HeapObject::kMapOffset)); | |
| 521 __ ldrb(r2, FieldMemOperand(r2, Map::kInstanceTypeOffset)); | |
| 522 __ cmp(r2, Operand(JS_FUNCTION_TYPE)); | |
| 523 __ b(ne, &miss); | |
| 524 | |
| 525 // Patch the receiver on the stack with the global proxy if | |
| 526 // necessary. | |
| 527 if (object->IsGlobalObject()) { | |
| 528 __ ldr(r3, FieldMemOperand(r0, GlobalObject::kGlobalReceiverOffset)); | |
| 529 __ str(r3, MemOperand(sp, argc * kPointerSize)); | |
| 530 } | |
| 531 | |
| 532 // Invoke the function. | |
| 533 __ InvokeFunction(r1, arguments(), JUMP_FUNCTION); | |
| 534 | |
| 535 // Handle call cache miss. | |
| 536 __ bind(&miss); | |
| 537 Handle<Code> ic = ComputeCallMiss(arguments().immediate()); | |
| 538 __ Jump(ic, RelocInfo::CODE_TARGET); | |
| 539 | |
| 540 // Return the generated code. | |
| 541 return GetCode(FIELD, name); | |
| 542 } | |
| 543 | |
| 544 | |
| 545 Object* CallStubCompiler::CompileCallConstant(Object* object, | |
| 546 JSObject* holder, | |
| 547 JSFunction* function, | |
| 548 CheckType check) { | |
| 549 // ----------- S t a t e ------------- | |
| 550 // -- lr: return address | |
| 551 // ----------------------------------- | |
| 552 Label miss; | |
| 553 | |
| 554 // Get the receiver from the stack | |
| 555 const int argc = arguments().immediate(); | |
| 556 __ ldr(r1, MemOperand(sp, argc * kPointerSize)); | |
| 557 | |
| 558 // Check that the receiver isn't a smi. | |
| 559 if (check != NUMBER_CHECK) { | |
| 560 __ tst(r1, Operand(kSmiTagMask)); | |
| 561 __ b(eq, &miss); | |
| 562 } | |
| 563 | |
| 564 // Make sure that it's okay not to patch the on stack receiver | |
| 565 // unless we're doing a receiver map check. | |
| 566 ASSERT(!object->IsGlobalObject() || check == RECEIVER_MAP_CHECK); | |
| 567 | |
| 568 switch (check) { | |
| 569 case RECEIVER_MAP_CHECK: | |
| 570 // Check that the maps haven't changed. | |
| 571 __ CheckMaps(JSObject::cast(object), r1, holder, r3, r2, &miss); | |
| 572 | |
| 573 // Patch the receiver on the stack with the global proxy if | |
| 574 // necessary. | |
| 575 if (object->IsGlobalObject()) { | |
| 576 __ ldr(r3, FieldMemOperand(r1, GlobalObject::kGlobalReceiverOffset)); | |
| 577 __ str(r3, MemOperand(sp, argc * kPointerSize)); | |
| 578 } | |
| 579 break; | |
| 580 | |
| 581 case STRING_CHECK: | |
| 582 // Check that the object is a two-byte string or a symbol. | |
| 583 __ ldr(r2, FieldMemOperand(r1, HeapObject::kMapOffset)); | |
| 584 __ ldrb(r2, FieldMemOperand(r2, Map::kInstanceTypeOffset)); | |
| 585 __ cmp(r2, Operand(FIRST_NONSTRING_TYPE)); | |
| 586 __ b(hs, &miss); | |
| 587 // Check that the maps starting from the prototype haven't changed. | |
| 588 GenerateLoadGlobalFunctionPrototype(masm(), | |
| 589 Context::STRING_FUNCTION_INDEX, | |
| 590 r2); | |
| 591 __ CheckMaps(JSObject::cast(object->GetPrototype()), | |
| 592 r2, holder, r3, r1, &miss); | |
| 593 break; | |
| 594 | |
| 595 case NUMBER_CHECK: { | |
| 596 Label fast; | |
| 597 // Check that the object is a smi or a heap number. | |
| 598 __ tst(r1, Operand(kSmiTagMask)); | |
| 599 __ b(eq, &fast); | |
| 600 __ ldr(r2, FieldMemOperand(r1, HeapObject::kMapOffset)); | |
| 601 __ ldrb(r2, FieldMemOperand(r2, Map::kInstanceTypeOffset)); | |
| 602 __ cmp(r2, Operand(HEAP_NUMBER_TYPE)); | |
| 603 __ b(ne, &miss); | |
| 604 __ bind(&fast); | |
| 605 // Check that the maps starting from the prototype haven't changed. | |
| 606 GenerateLoadGlobalFunctionPrototype(masm(), | |
| 607 Context::NUMBER_FUNCTION_INDEX, | |
| 608 r2); | |
| 609 __ CheckMaps(JSObject::cast(object->GetPrototype()), | |
| 610 r2, holder, r3, r1, &miss); | |
| 611 break; | |
| 612 } | |
| 613 | |
| 614 case BOOLEAN_CHECK: { | |
| 615 Label fast; | |
| 616 // Check that the object is a boolean. | |
| 617 __ cmp(r1, Operand(Factory::true_value())); | |
| 618 __ b(eq, &fast); | |
| 619 __ cmp(r1, Operand(Factory::false_value())); | |
| 620 __ b(ne, &miss); | |
| 621 __ bind(&fast); | |
| 622 // Check that the maps starting from the prototype haven't changed. | |
| 623 GenerateLoadGlobalFunctionPrototype(masm(), | |
| 624 Context::BOOLEAN_FUNCTION_INDEX, | |
| 625 r2); | |
| 626 __ CheckMaps(JSObject::cast(object->GetPrototype()), | |
| 627 r2, holder, r3, r1, &miss); | |
| 628 break; | |
| 629 } | |
| 630 | |
| 631 case JSARRAY_HAS_FAST_ELEMENTS_CHECK: | |
| 632 __ CheckMaps(JSObject::cast(object), r1, holder, r3, r2, &miss); | |
| 633 // Make sure object->elements()->map() != Heap::hash_table_map() | |
| 634 // Get the elements array of the object. | |
| 635 __ ldr(r3, FieldMemOperand(r1, JSObject::kElementsOffset)); | |
| 636 // Check that the object is in fast mode (not dictionary). | |
| 637 __ ldr(r2, FieldMemOperand(r3, HeapObject::kMapOffset)); | |
| 638 __ cmp(r2, Operand(Factory::hash_table_map())); | |
| 639 __ b(eq, &miss); | |
| 640 break; | |
| 641 | |
| 642 default: | |
| 643 UNREACHABLE(); | |
| 644 } | |
| 645 | |
| 646 // Get the function and setup the context. | |
| 647 __ mov(r1, Operand(Handle<JSFunction>(function))); | |
| 648 __ ldr(cp, FieldMemOperand(r1, JSFunction::kContextOffset)); | |
| 649 | |
| 650 // Jump to the cached code (tail call). | |
| 651 Handle<Code> code(function->code()); | |
| 652 ParameterCount expected(function->shared()->formal_parameter_count()); | |
| 653 __ InvokeCode(code, expected, arguments(), | |
| 654 RelocInfo::CODE_TARGET, JUMP_FUNCTION); | |
| 655 | |
| 656 // Handle call cache miss. | |
| 657 __ bind(&miss); | |
| 658 Handle<Code> ic = ComputeCallMiss(arguments().immediate()); | |
| 659 __ Jump(ic, RelocInfo::CODE_TARGET); | |
| 660 | |
| 661 // Return the generated code. | |
| 662 String* function_name = NULL; | |
| 663 if (function->shared()->name()->IsString()) { | |
| 664 function_name = String::cast(function->shared()->name()); | |
| 665 } | |
| 666 return GetCode(CONSTANT_FUNCTION, function_name); | |
| 667 } | |
| 668 | |
| 669 | |
| 670 Object* CallStubCompiler::CompileCallInterceptor(Object* object, | |
| 671 JSObject* holder, | |
| 672 String* name) { | |
| 673 // ----------- S t a t e ------------- | |
| 674 // -- lr: return address | |
| 675 // ----------------------------------- | |
| 676 Label miss; | |
| 677 | |
| 678 // TODO(1224669): Implement. | |
| 679 | |
| 680 // Handle call cache miss. | |
| 681 __ bind(&miss); | |
| 682 Handle<Code> ic = ComputeCallMiss(arguments().immediate()); | |
| 683 __ Jump(ic, RelocInfo::CODE_TARGET); | |
| 684 | |
| 685 // Return the generated code. | |
| 686 return GetCode(INTERCEPTOR, name); | |
| 687 } | |
| 688 | |
| 689 | |
| 690 Object* StoreStubCompiler::CompileStoreField(JSObject* object, | |
| 691 int index, | |
| 692 Map* transition, | |
| 693 String* name) { | |
| 694 // ----------- S t a t e ------------- | |
| 695 // -- r0 : value | |
| 696 // -- r2 : name | |
| 697 // -- lr : return address | |
| 698 // -- [sp] : receiver | |
| 699 // ----------------------------------- | |
| 700 Label miss; | |
| 701 | |
| 702 // Get the receiver from the stack. | |
| 703 __ ldr(r3, MemOperand(sp, 0 * kPointerSize)); | |
| 704 | |
| 705 // name register might be clobbered. | |
| 706 GenerateStoreField(masm(), | |
| 707 Builtins::StoreIC_ExtendStorage, | |
| 708 object, | |
| 709 index, | |
| 710 transition, | |
| 711 r3, r2, r1, | |
| 712 &miss); | |
| 713 __ bind(&miss); | |
| 714 __ mov(r2, Operand(Handle<String>(name))); // restore name | |
| 715 Handle<Code> ic(Builtins::builtin(Builtins::StoreIC_Miss)); | |
| 716 __ Jump(ic, RelocInfo::CODE_TARGET); | |
| 717 | |
| 718 // Return the generated code. | |
| 719 return GetCode(transition == NULL ? FIELD : MAP_TRANSITION, name); | |
| 720 } | |
| 721 | |
| 722 | |
| 723 Object* StoreStubCompiler::CompileStoreCallback(JSObject* object, | |
| 724 AccessorInfo* callback, | |
| 725 String* name) { | |
| 726 // ----------- S t a t e ------------- | |
| 727 // -- r0 : value | |
| 728 // -- r2 : name | |
| 729 // -- lr : return address | |
| 730 // -- [sp] : receiver | |
| 731 // ----------------------------------- | |
| 732 Label miss; | |
| 733 | |
| 734 // Get the object from the stack. | |
| 735 __ ldr(r3, MemOperand(sp, 0 * kPointerSize)); | |
| 736 | |
| 737 // Check that the object isn't a smi. | |
| 738 __ tst(r3, Operand(kSmiTagMask)); | |
| 739 __ b(eq, &miss); | |
| 740 | |
| 741 // Check that the map of the object hasn't changed. | |
| 742 __ ldr(r1, FieldMemOperand(r3, HeapObject::kMapOffset)); | |
| 743 __ cmp(r1, Operand(Handle<Map>(object->map()))); | |
| 744 __ b(ne, &miss); | |
| 745 | |
| 746 // Perform global security token check if needed. | |
| 747 if (object->IsJSGlobalProxy()) { | |
| 748 __ CheckAccessGlobalProxy(r3, r1, &miss); | |
| 749 } | |
| 750 | |
| 751 // Stub never generated for non-global objects that require access | |
| 752 // checks. | |
| 753 ASSERT(object->IsJSGlobalProxy() || !object->IsAccessCheckNeeded()); | |
| 754 | |
| 755 __ ldr(ip, MemOperand(sp)); // receiver | |
| 756 __ push(ip); | |
| 757 __ mov(ip, Operand(Handle<AccessorInfo>(callback))); // callback info | |
| 758 __ push(ip); | |
| 759 __ push(r2); // name | |
| 760 __ push(r0); // value | |
| 761 | |
| 762 // Do tail-call to the runtime system. | |
| 763 ExternalReference store_callback_property = | |
| 764 ExternalReference(IC_Utility(IC::kStoreCallbackProperty)); | |
| 765 __ TailCallRuntime(store_callback_property, 4); | |
| 766 | |
| 767 // Handle store cache miss. | |
| 768 __ bind(&miss); | |
| 769 __ mov(r2, Operand(Handle<String>(name))); // restore name | |
| 770 Handle<Code> ic(Builtins::builtin(Builtins::StoreIC_Miss)); | |
| 771 __ Jump(ic, RelocInfo::CODE_TARGET); | |
| 772 | |
| 773 // Return the generated code. | |
| 774 return GetCode(CALLBACKS, name); | |
| 775 } | |
| 776 | |
| 777 | |
| 778 Object* StoreStubCompiler::CompileStoreInterceptor(JSObject* receiver, | |
| 779 String* name) { | |
| 780 // ----------- S t a t e ------------- | |
| 781 // -- r0 : value | |
| 782 // -- r2 : name | |
| 783 // -- lr : return address | |
| 784 // -- [sp] : receiver | |
| 785 // ----------------------------------- | |
| 786 Label miss; | |
| 787 | |
| 788 // Get the object from the stack. | |
| 789 __ ldr(r3, MemOperand(sp, 0 * kPointerSize)); | |
| 790 | |
| 791 // Check that the object isn't a smi. | |
| 792 __ tst(r3, Operand(kSmiTagMask)); | |
| 793 __ b(eq, &miss); | |
| 794 | |
| 795 // Check that the map of the object hasn't changed. | |
| 796 __ ldr(r1, FieldMemOperand(r3, HeapObject::kMapOffset)); | |
| 797 __ cmp(r1, Operand(Handle<Map>(receiver->map()))); | |
| 798 __ b(ne, &miss); | |
| 799 | |
| 800 // Perform global security token check if needed. | |
| 801 if (receiver->IsJSGlobalProxy()) { | |
| 802 __ CheckAccessGlobalProxy(r3, r1, &miss); | |
| 803 } | |
| 804 | |
| 805 // Stub never generated for non-global objects that require access | |
| 806 // checks. | |
| 807 ASSERT(receiver->IsJSGlobalProxy() || !receiver->IsAccessCheckNeeded()); | |
| 808 | |
| 809 __ ldr(ip, MemOperand(sp)); // receiver | |
| 810 __ push(ip); | |
| 811 __ push(r2); // name | |
| 812 __ push(r0); // value | |
| 813 | |
| 814 // Do tail-call to the runtime system. | |
| 815 ExternalReference store_ic_property = | |
| 816 ExternalReference(IC_Utility(IC::kStoreInterceptorProperty)); | |
| 817 __ TailCallRuntime(store_ic_property, 3); | |
| 818 | |
| 819 // Handle store cache miss. | |
| 820 __ bind(&miss); | |
| 821 __ mov(r2, Operand(Handle<String>(name))); // restore name | |
| 822 Handle<Code> ic(Builtins::builtin(Builtins::StoreIC_Miss)); | |
| 823 __ Jump(ic, RelocInfo::CODE_TARGET); | |
| 824 | |
| 825 // Return the generated code. | |
| 826 return GetCode(INTERCEPTOR, name); | |
| 827 } | |
| 828 | |
| 829 | |
| 830 Object* LoadStubCompiler::CompileLoadField(JSObject* object, | |
| 831 JSObject* holder, | |
| 832 int index, | |
| 833 String* name) { | |
| 834 // ----------- S t a t e ------------- | |
| 835 // -- r2 : name | |
| 836 // -- lr : return address | |
| 837 // -- [sp] : receiver | |
| 838 // ----------------------------------- | |
| 839 Label miss; | |
| 840 | |
| 841 __ ldr(r0, MemOperand(sp, 0)); | |
| 842 | |
| 843 GenerateLoadField(masm(), object, holder, r0, r3, r1, index, &miss); | |
| 844 __ bind(&miss); | |
| 845 GenerateLoadMiss(masm(), Code::LOAD_IC); | |
| 846 | |
| 847 // Return the generated code. | |
| 848 return GetCode(FIELD, name); | |
| 849 } | |
| 850 | |
| 851 | |
| 852 Object* LoadStubCompiler::CompileLoadCallback(JSObject* object, | |
| 853 JSObject* holder, | |
| 854 AccessorInfo* callback, | |
| 855 String* name) { | |
| 856 // ----------- S t a t e ------------- | |
| 857 // -- r2 : name | |
| 858 // -- lr : return address | |
| 859 // -- [sp] : receiver | |
| 860 // ----------------------------------- | |
| 861 Label miss; | |
| 862 | |
| 863 __ ldr(r0, MemOperand(sp, 0)); | |
| 864 GenerateLoadCallback(masm(), object, holder, r0, r2, r3, r1, callback, &miss); | |
| 865 __ bind(&miss); | |
| 866 GenerateLoadMiss(masm(), Code::LOAD_IC); | |
| 867 | |
| 868 // Return the generated code. | |
| 869 return GetCode(CALLBACKS, name); | |
| 870 } | |
| 871 | |
| 872 | |
| 873 Object* LoadStubCompiler::CompileLoadConstant(JSObject* object, | |
| 874 JSObject* holder, | |
| 875 Object* value, | |
| 876 String* name) { | |
| 877 // ----------- S t a t e ------------- | |
| 878 // -- r2 : name | |
| 879 // -- lr : return address | |
| 880 // -- [sp] : receiver | |
| 881 // ----------------------------------- | |
| 882 Label miss; | |
| 883 | |
| 884 __ ldr(r0, MemOperand(sp, 0)); | |
| 885 | |
| 886 GenerateLoadConstant(masm(), object, holder, r0, r3, r1, value, &miss); | |
| 887 __ bind(&miss); | |
| 888 GenerateLoadMiss(masm(), Code::LOAD_IC); | |
| 889 | |
| 890 // Return the generated code. | |
| 891 return GetCode(CONSTANT_FUNCTION, name); | |
| 892 } | |
| 893 | |
| 894 | |
| 895 Object* LoadStubCompiler::CompileLoadInterceptor(JSObject* object, | |
| 896 JSObject* holder, | |
| 897 String* name) { | |
| 898 // ----------- S t a t e ------------- | |
| 899 // -- r2 : name | |
| 900 // -- lr : return address | |
| 901 // -- [sp] : receiver | |
| 902 // ----------------------------------- | |
| 903 Label miss; | |
| 904 | |
| 905 __ ldr(r0, MemOperand(sp, 0)); | |
| 906 | |
| 907 GenerateLoadInterceptor(masm(), object, holder, r0, r2, r3, r1, &miss); | |
| 908 __ bind(&miss); | |
| 909 GenerateLoadMiss(masm(), Code::LOAD_IC); | |
| 910 | |
| 911 // Return the generated code. | |
| 912 return GetCode(INTERCEPTOR, name); | |
| 913 } | |
| 914 | |
| 915 | |
| 916 // TODO(1224671): IC stubs for keyed loads have not been implemented | |
| 917 // for ARM. | |
| 918 Object* KeyedLoadStubCompiler::CompileLoadField(String* name, | |
| 919 JSObject* receiver, | |
| 920 JSObject* holder, | |
| 921 int index) { | |
| 922 // ----------- S t a t e ------------- | |
| 923 // -- lr : return address | |
| 924 // -- sp[0] : key | |
| 925 // -- sp[4] : receiver | |
| 926 // ----------------------------------- | |
| 927 Label miss; | |
| 928 | |
| 929 __ ldr(r2, MemOperand(sp, 0)); | |
| 930 __ ldr(r0, MemOperand(sp, kPointerSize)); | |
| 931 | |
| 932 __ cmp(r2, Operand(Handle<String>(name))); | |
| 933 __ b(ne, &miss); | |
| 934 | |
| 935 GenerateLoadField(masm(), receiver, holder, r0, r3, r1, index, &miss); | |
| 936 __ bind(&miss); | |
| 937 GenerateLoadMiss(masm(), Code::KEYED_LOAD_IC); | |
| 938 | |
| 939 return GetCode(FIELD, name); | |
| 940 } | |
| 941 | |
| 942 | |
| 943 Object* KeyedLoadStubCompiler::CompileLoadCallback(String* name, | |
| 944 JSObject* receiver, | |
| 945 JSObject* holder, | |
| 946 AccessorInfo* callback) { | |
| 947 // ----------- S t a t e ------------- | |
| 948 // -- lr : return address | |
| 949 // -- sp[0] : key | |
| 950 // -- sp[4] : receiver | |
| 951 // ----------------------------------- | |
| 952 Label miss; | |
| 953 | |
| 954 __ ldr(r2, MemOperand(sp, 0)); | |
| 955 __ ldr(r0, MemOperand(sp, kPointerSize)); | |
| 956 | |
| 957 __ cmp(r2, Operand(Handle<String>(name))); | |
| 958 __ b(ne, &miss); | |
| 959 | |
| 960 GenerateLoadCallback(masm(), receiver, holder, r0, r2, r3, | |
| 961 r1, callback, &miss); | |
| 962 __ bind(&miss); | |
| 963 GenerateLoadMiss(masm(), Code::KEYED_LOAD_IC); | |
| 964 | |
| 965 return GetCode(CALLBACKS, name); | |
| 966 } | |
| 967 | |
| 968 | |
| 969 Object* KeyedLoadStubCompiler::CompileLoadConstant(String* name, | |
| 970 JSObject* receiver, | |
| 971 JSObject* holder, | |
| 972 Object* value) { | |
| 973 // ----------- S t a t e ------------- | |
| 974 // -- lr : return address | |
| 975 // -- sp[0] : key | |
| 976 // -- sp[4] : receiver | |
| 977 // ----------------------------------- | |
| 978 Label miss; | |
| 979 | |
| 980 // Check the key is the cached one | |
| 981 __ ldr(r2, MemOperand(sp, 0)); | |
| 982 __ ldr(r0, MemOperand(sp, kPointerSize)); | |
| 983 | |
| 984 __ cmp(r2, Operand(Handle<String>(name))); | |
| 985 __ b(ne, &miss); | |
| 986 | |
| 987 GenerateLoadConstant(masm(), receiver, holder, r0, r3, r1, value, &miss); | |
| 988 __ bind(&miss); | |
| 989 GenerateLoadMiss(masm(), Code::KEYED_LOAD_IC); | |
| 990 | |
| 991 // Return the generated code. | |
| 992 return GetCode(CONSTANT_FUNCTION, name); | |
| 993 } | |
| 994 | |
| 995 | |
| 996 Object* KeyedLoadStubCompiler::CompileLoadInterceptor(JSObject* receiver, | |
| 997 JSObject* holder, | |
| 998 String* name) { | |
| 999 // ----------- S t a t e ------------- | |
| 1000 // -- lr : return address | |
| 1001 // -- sp[0] : key | |
| 1002 // -- sp[4] : receiver | |
| 1003 // ----------------------------------- | |
| 1004 Label miss; | |
| 1005 | |
| 1006 // Check the key is the cached one | |
| 1007 __ ldr(r2, MemOperand(sp, 0)); | |
| 1008 __ ldr(r0, MemOperand(sp, kPointerSize)); | |
| 1009 | |
| 1010 __ cmp(r2, Operand(Handle<String>(name))); | |
| 1011 __ b(ne, &miss); | |
| 1012 | |
| 1013 GenerateLoadInterceptor(masm(), receiver, holder, r0, r2, r3, r1, &miss); | |
| 1014 __ bind(&miss); | |
| 1015 GenerateLoadMiss(masm(), Code::KEYED_LOAD_IC); | |
| 1016 | |
| 1017 return GetCode(INTERCEPTOR, name); | |
| 1018 } | |
| 1019 | |
| 1020 | |
| 1021 Object* KeyedLoadStubCompiler::CompileLoadArrayLength(String* name) { | |
| 1022 // ----------- S t a t e ------------- | |
| 1023 // -- lr : return address | |
| 1024 // -- sp[0] : key | |
| 1025 // -- sp[4] : receiver | |
| 1026 // ----------------------------------- | |
| 1027 Label miss; | |
| 1028 | |
| 1029 // Check the key is the cached one | |
| 1030 __ ldr(r2, MemOperand(sp, 0)); | |
| 1031 __ ldr(r0, MemOperand(sp, kPointerSize)); | |
| 1032 | |
| 1033 __ cmp(r2, Operand(Handle<String>(name))); | |
| 1034 __ b(ne, &miss); | |
| 1035 | |
| 1036 GenerateLoadArrayLength(masm(), r0, r3, &miss); | |
| 1037 __ bind(&miss); | |
| 1038 GenerateLoadMiss(masm(), Code::KEYED_LOAD_IC); | |
| 1039 | |
| 1040 return GetCode(CALLBACKS, name); | |
| 1041 } | |
| 1042 | |
| 1043 | |
| 1044 Object* KeyedLoadStubCompiler::CompileLoadStringLength(String* name) { | |
| 1045 // ----------- S t a t e ------------- | |
| 1046 // -- lr : return address | |
| 1047 // -- sp[0] : key | |
| 1048 // -- sp[4] : receiver | |
| 1049 // ----------------------------------- | |
| 1050 Label miss; | |
| 1051 __ IncrementCounter(&Counters::keyed_load_string_length, 1, r1, r3); | |
| 1052 | |
| 1053 __ ldr(r2, MemOperand(sp)); | |
| 1054 __ ldr(r0, MemOperand(sp, kPointerSize)); // receiver | |
| 1055 | |
| 1056 __ cmp(r2, Operand(Handle<String>(name))); | |
| 1057 __ b(ne, &miss); | |
| 1058 | |
| 1059 GenerateLoadStringLength2(masm(), r0, r1, r3, &miss); | |
| 1060 __ bind(&miss); | |
| 1061 __ DecrementCounter(&Counters::keyed_load_string_length, 1, r1, r3); | |
| 1062 | |
| 1063 GenerateLoadMiss(masm(), Code::KEYED_LOAD_IC); | |
| 1064 | |
| 1065 return GetCode(CALLBACKS, name); | |
| 1066 } | |
| 1067 | |
| 1068 | |
| 1069 // TODO(1224671): implement the fast case. | |
| 1070 Object* KeyedLoadStubCompiler::CompileLoadFunctionPrototype(String* name) { | |
| 1071 // ----------- S t a t e ------------- | |
| 1072 // -- lr : return address | |
| 1073 // -- sp[0] : key | |
| 1074 // -- sp[4] : receiver | |
| 1075 // ----------------------------------- | |
| 1076 GenerateLoadMiss(masm(), Code::KEYED_LOAD_IC); | |
| 1077 | |
| 1078 return GetCode(CALLBACKS, name); | |
| 1079 } | |
| 1080 | |
| 1081 | |
| 1082 Object* KeyedStoreStubCompiler::CompileStoreField(JSObject* object, | |
| 1083 int index, | |
| 1084 Map* transition, | |
| 1085 String* name) { | |
| 1086 // ----------- S t a t e ------------- | |
| 1087 // -- r0 : value | |
| 1088 // -- r2 : name | |
| 1089 // -- lr : return address | |
| 1090 // -- [sp] : receiver | |
| 1091 // ----------------------------------- | |
| 1092 Label miss; | |
| 1093 | |
| 1094 __ IncrementCounter(&Counters::keyed_store_field, 1, r1, r3); | |
| 1095 | |
| 1096 // Check that the name has not changed. | |
| 1097 __ cmp(r2, Operand(Handle<String>(name))); | |
| 1098 __ b(ne, &miss); | |
| 1099 | |
| 1100 // Load receiver from the stack. | |
| 1101 __ ldr(r3, MemOperand(sp)); | |
| 1102 // r1 is used as scratch register, r3 and r2 might be clobbered. | |
| 1103 GenerateStoreField(masm(), | |
| 1104 Builtins::StoreIC_ExtendStorage, | |
| 1105 object, | |
| 1106 index, | |
| 1107 transition, | |
| 1108 r3, r2, r1, | |
| 1109 &miss); | |
| 1110 __ bind(&miss); | |
| 1111 | |
| 1112 __ DecrementCounter(&Counters::keyed_store_field, 1, r1, r3); | |
| 1113 __ mov(r2, Operand(Handle<String>(name))); // restore name register. | |
| 1114 Handle<Code> ic(Builtins::builtin(Builtins::KeyedStoreIC_Miss)); | |
| 1115 __ Jump(ic, RelocInfo::CODE_TARGET); | |
| 1116 | |
| 1117 // Return the generated code. | |
| 1118 return GetCode(transition == NULL ? FIELD : MAP_TRANSITION, name); | |
| 1119 } | |
| 1120 | |
| 1121 | |
| 1122 #undef __ | |
| 1123 | |
| 1124 } } // namespace v8::internal | |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 92068:
Move backend specific files to separate directories. (Closed)
