OLD | NEW |
1 // Copyright 2010 the V8 project authors. All rights reserved. | 1 // Copyright 2010 the V8 project authors. All rights reserved. |
2 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
4 // met: | 4 // met: |
5 // | 5 // |
6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
(...skipping 3822 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
3833 | 3833 |
3834 __ Move(kScratchRegister, Factory::null_value()); | 3834 __ Move(kScratchRegister, Factory::null_value()); |
3835 __ cmpq(obj.reg(), kScratchRegister); | 3835 __ cmpq(obj.reg(), kScratchRegister); |
3836 destination()->true_target()->Branch(equal); | 3836 destination()->true_target()->Branch(equal); |
3837 | 3837 |
3838 __ movq(kScratchRegister, FieldOperand(obj.reg(), HeapObject::kMapOffset)); | 3838 __ movq(kScratchRegister, FieldOperand(obj.reg(), HeapObject::kMapOffset)); |
3839 // Undetectable objects behave like undefined when tested with typeof. | 3839 // Undetectable objects behave like undefined when tested with typeof. |
3840 __ testb(FieldOperand(kScratchRegister, Map::kBitFieldOffset), | 3840 __ testb(FieldOperand(kScratchRegister, Map::kBitFieldOffset), |
3841 Immediate(1 << Map::kIsUndetectable)); | 3841 Immediate(1 << Map::kIsUndetectable)); |
3842 destination()->false_target()->Branch(not_zero); | 3842 destination()->false_target()->Branch(not_zero); |
3843 __ CmpInstanceType(kScratchRegister, FIRST_JS_OBJECT_TYPE); | 3843 __ movzxbq(kScratchRegister, |
3844 destination()->false_target()->Branch(less); | 3844 FieldOperand(kScratchRegister, Map::kInstanceTypeOffset)); |
3845 __ CmpInstanceType(kScratchRegister, LAST_JS_OBJECT_TYPE); | 3845 __ cmpq(kScratchRegister, Immediate(FIRST_JS_OBJECT_TYPE)); |
| 3846 destination()->false_target()->Branch(below); |
| 3847 __ cmpq(kScratchRegister, Immediate(LAST_JS_OBJECT_TYPE)); |
3846 obj.Unuse(); | 3848 obj.Unuse(); |
3847 destination()->Split(less_equal); | 3849 destination()->Split(below_equal); |
3848 } | 3850 } |
3849 | 3851 |
3850 | 3852 |
3851 void CodeGenerator::GenerateIsFunction(ZoneList<Expression*>* args) { | 3853 void CodeGenerator::GenerateIsFunction(ZoneList<Expression*>* args) { |
3852 // This generates a fast version of: | 3854 // This generates a fast version of: |
3853 // (%_ClassOf(arg) === 'Function') | 3855 // (%_ClassOf(arg) === 'Function') |
3854 ASSERT(args->length() == 1); | 3856 ASSERT(args->length() == 1); |
3855 Load(args->at(0)); | 3857 Load(args->at(0)); |
3856 Result obj = frame_->Pop(); | 3858 Result obj = frame_->Pop(); |
3857 obj.ToRegister(); | 3859 obj.ToRegister(); |
(...skipping 471 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
4329 __ CallRuntime(Runtime::kNumberUnaryMinus, 1); | 4331 __ CallRuntime(Runtime::kNumberUnaryMinus, 1); |
4330 __ movq(rbx, rax); | 4332 __ movq(rbx, rax); |
4331 | 4333 |
4332 __ bind(&heapnumber_allocated); | 4334 __ bind(&heapnumber_allocated); |
4333 | 4335 |
4334 // Return a random uint32 number in rax. | 4336 // Return a random uint32 number in rax. |
4335 // The fresh HeapNumber is in rbx, which is callee-save on both x64 ABIs. | 4337 // The fresh HeapNumber is in rbx, which is callee-save on both x64 ABIs. |
4336 __ PrepareCallCFunction(0); | 4338 __ PrepareCallCFunction(0); |
4337 __ CallCFunction(ExternalReference::random_uint32_function(), 0); | 4339 __ CallCFunction(ExternalReference::random_uint32_function(), 0); |
4338 | 4340 |
4339 // Convert 32 random bits in eax to 0.(32 random bits) in a double | 4341 // Convert 32 random bits in rax to 0.(32 random bits) in a double |
4340 // by computing: | 4342 // by computing: |
4341 // ( 1.(20 0s)(32 random bits) x 2^20 ) - (1.0 x 2^20)). | 4343 // ( 1.(20 0s)(32 random bits) x 2^20 ) - (1.0 x 2^20)). |
4342 __ movl(rcx, Immediate(0x49800000)); // 1.0 x 2^20 as single. | 4344 __ movl(rcx, Immediate(0x49800000)); // 1.0 x 2^20 as single. |
4343 __ movd(xmm1, rcx); | 4345 __ movd(xmm1, rcx); |
4344 __ movd(xmm0, rax); | 4346 __ movd(xmm0, rax); |
4345 __ cvtss2sd(xmm1, xmm1); | 4347 __ cvtss2sd(xmm1, xmm1); |
4346 __ xorpd(xmm0, xmm1); | 4348 __ xorpd(xmm0, xmm1); |
4347 __ subsd(xmm0, xmm1); | 4349 __ subsd(xmm0, xmm1); |
4348 __ movsd(FieldOperand(rbx, HeapNumber::kValueOffset), xmm0); | 4350 __ movsd(FieldOperand(rbx, HeapNumber::kValueOffset), xmm0); |
4349 | 4351 |
(...skipping 7227 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
11577 } | 11579 } |
11578 | 11580 |
11579 #endif | 11581 #endif |
11580 | 11582 |
11581 | 11583 |
11582 #undef __ | 11584 #undef __ |
11583 | 11585 |
11584 } } // namespace v8::internal | 11586 } } // namespace v8::internal |
11585 | 11587 |
11586 #endif // V8_TARGET_ARCH_X64 | 11588 #endif // V8_TARGET_ARCH_X64 |
OLD | NEW |