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1 // Copyright 2012 the V8 project authors. All rights reserved.7 | 1 // Copyright 2012 the V8 project authors. All rights reserved.7 |
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 |
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3876 } | 3876 } |
3877 | 3877 |
3878 | 3878 |
3879 void LCodeGen::DoCallNew(LCallNew* instr) { | 3879 void LCodeGen::DoCallNew(LCallNew* instr) { |
3880 ASSERT(ToRegister(instr->context()).is(cp)); | 3880 ASSERT(ToRegister(instr->context()).is(cp)); |
3881 ASSERT(ToRegister(instr->constructor()).is(a1)); | 3881 ASSERT(ToRegister(instr->constructor()).is(a1)); |
3882 ASSERT(ToRegister(instr->result()).is(v0)); | 3882 ASSERT(ToRegister(instr->result()).is(v0)); |
3883 | 3883 |
3884 __ li(a0, Operand(instr->arity())); | 3884 __ li(a0, Operand(instr->arity())); |
3885 // No cell in a2 for construct type feedback in optimized code | 3885 // No cell in a2 for construct type feedback in optimized code |
3886 Handle<Object> undefined_value(isolate()->factory()->undefined_value()); | 3886 Handle<Object> megamorphic_symbol = |
3887 __ li(a2, Operand(undefined_value)); | 3887 TypeFeedbackInfo::MegamorphicSentinel(isolate()); |
| 3888 __ li(a2, Operand(megamorphic_symbol)); |
3888 CallConstructStub stub(NO_CALL_FUNCTION_FLAGS); | 3889 CallConstructStub stub(NO_CALL_FUNCTION_FLAGS); |
3889 CallCode(stub.GetCode(isolate()), RelocInfo::CONSTRUCT_CALL, instr); | 3890 CallCode(stub.GetCode(isolate()), RelocInfo::CONSTRUCT_CALL, instr); |
3890 } | 3891 } |
3891 | 3892 |
3892 | 3893 |
3893 void LCodeGen::DoCallNewArray(LCallNewArray* instr) { | 3894 void LCodeGen::DoCallNewArray(LCallNewArray* instr) { |
3894 ASSERT(ToRegister(instr->context()).is(cp)); | 3895 ASSERT(ToRegister(instr->context()).is(cp)); |
3895 ASSERT(ToRegister(instr->constructor()).is(a1)); | 3896 ASSERT(ToRegister(instr->constructor()).is(a1)); |
3896 ASSERT(ToRegister(instr->result()).is(v0)); | 3897 ASSERT(ToRegister(instr->result()).is(v0)); |
3897 | 3898 |
3898 __ li(a0, Operand(instr->arity())); | 3899 __ li(a0, Operand(instr->arity())); |
3899 __ li(a2, Operand(factory()->undefined_value())); | 3900 __ li(a2, Operand(TypeFeedbackInfo::MegamorphicSentinel(isolate()))); |
3900 ElementsKind kind = instr->hydrogen()->elements_kind(); | 3901 ElementsKind kind = instr->hydrogen()->elements_kind(); |
3901 AllocationSiteOverrideMode override_mode = | 3902 AllocationSiteOverrideMode override_mode = |
3902 (AllocationSite::GetMode(kind) == TRACK_ALLOCATION_SITE) | 3903 (AllocationSite::GetMode(kind) == TRACK_ALLOCATION_SITE) |
3903 ? DISABLE_ALLOCATION_SITES | 3904 ? DISABLE_ALLOCATION_SITES |
3904 : DONT_OVERRIDE; | 3905 : DONT_OVERRIDE; |
3905 | 3906 |
3906 if (instr->arity() == 0) { | 3907 if (instr->arity() == 0) { |
3907 ArrayNoArgumentConstructorStub stub(kind, override_mode); | 3908 ArrayNoArgumentConstructorStub stub(kind, override_mode); |
3908 CallCode(stub.GetCode(isolate()), RelocInfo::CONSTRUCT_CALL, instr); | 3909 CallCode(stub.GetCode(isolate()), RelocInfo::CONSTRUCT_CALL, instr); |
3909 } else if (instr->arity() == 1) { | 3910 } else if (instr->arity() == 1) { |
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5751 __ Subu(scratch, result, scratch); | 5752 __ Subu(scratch, result, scratch); |
5752 __ lw(result, FieldMemOperand(scratch, | 5753 __ lw(result, FieldMemOperand(scratch, |
5753 FixedArray::kHeaderSize - kPointerSize)); | 5754 FixedArray::kHeaderSize - kPointerSize)); |
5754 __ bind(&done); | 5755 __ bind(&done); |
5755 } | 5756 } |
5756 | 5757 |
5757 | 5758 |
5758 #undef __ | 5759 #undef __ |
5759 | 5760 |
5760 } } // namespace v8::internal | 5761 } } // namespace v8::internal |
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