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1 // Copyright 2013 the V8 project authors. All rights reserved. | 1 // Copyright 2013 the V8 project authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #if V8_TARGET_ARCH_X64 | 5 #if V8_TARGET_ARCH_X64 |
6 | 6 |
7 #include "src/bootstrapper.h" | 7 #include "src/bootstrapper.h" |
8 #include "src/code-stubs.h" | 8 #include "src/code-stubs.h" |
9 #include "src/codegen.h" | 9 #include "src/codegen.h" |
10 #include "src/ic/handler-compiler.h" | 10 #include "src/ic/handler-compiler.h" |
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2476 __ bind(&fast_case); | 2476 __ bind(&fast_case); |
2477 __ JumpIfSmi(function, &slow_case); | 2477 __ JumpIfSmi(function, &slow_case); |
2478 __ CmpObjectType(function, JS_FUNCTION_TYPE, function_map); | 2478 __ CmpObjectType(function, JS_FUNCTION_TYPE, function_map); |
2479 __ j(not_equal, &slow_case); | 2479 __ j(not_equal, &slow_case); |
2480 | 2480 |
2481 // Ensure that {function} has an instance prototype. | 2481 // Ensure that {function} has an instance prototype. |
2482 __ testb(FieldOperand(function_map, Map::kBitFieldOffset), | 2482 __ testb(FieldOperand(function_map, Map::kBitFieldOffset), |
2483 Immediate(1 << Map::kHasNonInstancePrototype)); | 2483 Immediate(1 << Map::kHasNonInstancePrototype)); |
2484 __ j(not_zero, &slow_case); | 2484 __ j(not_zero, &slow_case); |
2485 | 2485 |
2486 // Ensure that {function} is not bound. | |
2487 Register const shared_info = kScratchRegister; | |
2488 __ movp(shared_info, | |
2489 FieldOperand(function, JSFunction::kSharedFunctionInfoOffset)); | |
2490 __ TestBitSharedFunctionInfoSpecialField( | |
2491 shared_info, SharedFunctionInfo::kCompilerHintsOffset, | |
2492 SharedFunctionInfo::kBoundFunction); | |
2493 __ j(not_zero, &slow_case); | |
2494 | |
2495 // Get the "prototype" (or initial map) of the {function}. | 2486 // Get the "prototype" (or initial map) of the {function}. |
2496 __ movp(function_prototype, | 2487 __ movp(function_prototype, |
2497 FieldOperand(function, JSFunction::kPrototypeOrInitialMapOffset)); | 2488 FieldOperand(function, JSFunction::kPrototypeOrInitialMapOffset)); |
2498 __ AssertNotSmi(function_prototype); | 2489 __ AssertNotSmi(function_prototype); |
2499 | 2490 |
2500 // Resolve the prototype if the {function} has an initial map. Afterwards the | 2491 // Resolve the prototype if the {function} has an initial map. Afterwards the |
2501 // {function_prototype} will be either the JSReceiver prototype object or the | 2492 // {function_prototype} will be either the JSReceiver prototype object or the |
2502 // hole value, which means that no instances of the {function} were created so | 2493 // hole value, which means that no instances of the {function} were created so |
2503 // far and hence we should return false. | 2494 // far and hence we should return false. |
2504 Label function_prototype_valid; | 2495 Label function_prototype_valid; |
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5398 kStackSpace, nullptr, return_value_operand, NULL); | 5389 kStackSpace, nullptr, return_value_operand, NULL); |
5399 } | 5390 } |
5400 | 5391 |
5401 | 5392 |
5402 #undef __ | 5393 #undef __ |
5403 | 5394 |
5404 } // namespace internal | 5395 } // namespace internal |
5405 } // namespace v8 | 5396 } // namespace v8 |
5406 | 5397 |
5407 #endif // V8_TARGET_ARCH_X64 | 5398 #endif // V8_TARGET_ARCH_X64 |
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