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1 // Copyright 2012 the V8 project authors. All rights reserved. | 1 // Copyright 2012 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 #include "src/v8.h" | 5 #include "src/v8.h" |
6 | 6 |
7 #if V8_TARGET_ARCH_X87 | 7 #if V8_TARGET_ARCH_X87 |
8 | 8 |
9 #include "src/code-stubs.h" | 9 #include "src/code-stubs.h" |
10 #include "src/codegen.h" | 10 #include "src/codegen.h" |
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4422 Split(zero, if_true, if_false, fall_through); | 4422 Split(zero, if_true, if_false, fall_through); |
4423 } else if (String::Equals(check, factory->symbol_string())) { | 4423 } else if (String::Equals(check, factory->symbol_string())) { |
4424 __ JumpIfSmi(eax, if_false); | 4424 __ JumpIfSmi(eax, if_false); |
4425 __ CmpObjectType(eax, SYMBOL_TYPE, edx); | 4425 __ CmpObjectType(eax, SYMBOL_TYPE, edx); |
4426 Split(equal, if_true, if_false, fall_through); | 4426 Split(equal, if_true, if_false, fall_through); |
4427 } else if (String::Equals(check, factory->boolean_string())) { | 4427 } else if (String::Equals(check, factory->boolean_string())) { |
4428 __ cmp(eax, isolate()->factory()->true_value()); | 4428 __ cmp(eax, isolate()->factory()->true_value()); |
4429 __ j(equal, if_true); | 4429 __ j(equal, if_true); |
4430 __ cmp(eax, isolate()->factory()->false_value()); | 4430 __ cmp(eax, isolate()->factory()->false_value()); |
4431 Split(equal, if_true, if_false, fall_through); | 4431 Split(equal, if_true, if_false, fall_through); |
4432 } else if (FLAG_harmony_typeof && | |
4433 String::Equals(check, factory->null_string())) { | |
4434 __ cmp(eax, isolate()->factory()->null_value()); | |
4435 Split(equal, if_true, if_false, fall_through); | |
4436 } else if (String::Equals(check, factory->undefined_string())) { | 4432 } else if (String::Equals(check, factory->undefined_string())) { |
4437 __ cmp(eax, isolate()->factory()->undefined_value()); | 4433 __ cmp(eax, isolate()->factory()->undefined_value()); |
4438 __ j(equal, if_true); | 4434 __ j(equal, if_true); |
4439 __ JumpIfSmi(eax, if_false); | 4435 __ JumpIfSmi(eax, if_false); |
4440 // Check for undetectable objects => true. | 4436 // Check for undetectable objects => true. |
4441 __ mov(edx, FieldOperand(eax, HeapObject::kMapOffset)); | 4437 __ mov(edx, FieldOperand(eax, HeapObject::kMapOffset)); |
4442 __ movzx_b(ecx, FieldOperand(edx, Map::kBitFieldOffset)); | 4438 __ movzx_b(ecx, FieldOperand(edx, Map::kBitFieldOffset)); |
4443 __ test(ecx, Immediate(1 << Map::kIsUndetectable)); | 4439 __ test(ecx, Immediate(1 << Map::kIsUndetectable)); |
4444 Split(not_zero, if_true, if_false, fall_through); | 4440 Split(not_zero, if_true, if_false, fall_through); |
4445 } else if (String::Equals(check, factory->function_string())) { | 4441 } else if (String::Equals(check, factory->function_string())) { |
4446 __ JumpIfSmi(eax, if_false); | 4442 __ JumpIfSmi(eax, if_false); |
4447 STATIC_ASSERT(NUM_OF_CALLABLE_SPEC_OBJECT_TYPES == 2); | 4443 STATIC_ASSERT(NUM_OF_CALLABLE_SPEC_OBJECT_TYPES == 2); |
4448 __ CmpObjectType(eax, JS_FUNCTION_TYPE, edx); | 4444 __ CmpObjectType(eax, JS_FUNCTION_TYPE, edx); |
4449 __ j(equal, if_true); | 4445 __ j(equal, if_true); |
4450 __ CmpInstanceType(edx, JS_FUNCTION_PROXY_TYPE); | 4446 __ CmpInstanceType(edx, JS_FUNCTION_PROXY_TYPE); |
4451 Split(equal, if_true, if_false, fall_through); | 4447 Split(equal, if_true, if_false, fall_through); |
4452 } else if (String::Equals(check, factory->object_string())) { | 4448 } else if (String::Equals(check, factory->object_string())) { |
4453 __ JumpIfSmi(eax, if_false); | 4449 __ JumpIfSmi(eax, if_false); |
4454 if (!FLAG_harmony_typeof) { | 4450 __ cmp(eax, isolate()->factory()->null_value()); |
4455 __ cmp(eax, isolate()->factory()->null_value()); | 4451 __ j(equal, if_true); |
4456 __ j(equal, if_true); | |
4457 } | |
4458 __ CmpObjectType(eax, FIRST_NONCALLABLE_SPEC_OBJECT_TYPE, edx); | 4452 __ CmpObjectType(eax, FIRST_NONCALLABLE_SPEC_OBJECT_TYPE, edx); |
4459 __ j(below, if_false); | 4453 __ j(below, if_false); |
4460 __ CmpInstanceType(edx, LAST_NONCALLABLE_SPEC_OBJECT_TYPE); | 4454 __ CmpInstanceType(edx, LAST_NONCALLABLE_SPEC_OBJECT_TYPE); |
4461 __ j(above, if_false); | 4455 __ j(above, if_false); |
4462 // Check for undetectable objects => false. | 4456 // Check for undetectable objects => false. |
4463 __ test_b(FieldOperand(edx, Map::kBitFieldOffset), | 4457 __ test_b(FieldOperand(edx, Map::kBitFieldOffset), |
4464 1 << Map::kIsUndetectable); | 4458 1 << Map::kIsUndetectable); |
4465 Split(zero, if_true, if_false, fall_through); | 4459 Split(zero, if_true, if_false, fall_through); |
4466 } else { | 4460 } else { |
4467 if (if_false != fall_through) __ jmp(if_false); | 4461 if (if_false != fall_through) __ jmp(if_false); |
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4789 ASSERT_EQ(isolate->builtins()->OsrAfterStackCheck()->entry(), | 4783 ASSERT_EQ(isolate->builtins()->OsrAfterStackCheck()->entry(), |
4790 Assembler::target_address_at(call_target_address, | 4784 Assembler::target_address_at(call_target_address, |
4791 unoptimized_code)); | 4785 unoptimized_code)); |
4792 return OSR_AFTER_STACK_CHECK; | 4786 return OSR_AFTER_STACK_CHECK; |
4793 } | 4787 } |
4794 | 4788 |
4795 | 4789 |
4796 } } // namespace v8::internal | 4790 } } // namespace v8::internal |
4797 | 4791 |
4798 #endif // V8_TARGET_ARCH_X87 | 4792 #endif // V8_TARGET_ARCH_X87 |
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