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Issue 1378533002: [es6] Introduce %ToInteger and %ToLength. (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@master
Patch Set: Created 5 years, 2 months ago
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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 #if V8_TARGET_ARCH_MIPS 5 #if V8_TARGET_ARCH_MIPS
6 6
7 // Note on Mips implementation: 7 // Note on Mips implementation:
8 // 8 //
9 // The result_register() for mips is the 'v0' register, which is defined 9 // The result_register() for mips is the 'v0' register, which is defined
10 // by the ABI to contain function return values. However, the first 10 // by the ABI to contain function return values. However, the first
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3771 // overwritten by the write barrier code and is needed afterward. 3771 // overwritten by the write barrier code and is needed afterward.
3772 __ mov(a2, v0); 3772 __ mov(a2, v0);
3773 __ RecordWriteField( 3773 __ RecordWriteField(
3774 a1, JSValue::kValueOffset, a2, a3, kRAHasBeenSaved, kDontSaveFPRegs); 3774 a1, JSValue::kValueOffset, a2, a3, kRAHasBeenSaved, kDontSaveFPRegs);
3775 3775
3776 __ bind(&done); 3776 __ bind(&done);
3777 context()->Plug(v0); 3777 context()->Plug(v0);
3778 } 3778 }
3779 3779
3780 3780
3781 void FullCodeGenerator::EmitToInteger(CallRuntime* expr) {
3782 ZoneList<Expression*>* args = expr->arguments();
3783 DCHECK_EQ(1, args->length());
3784
3785 // Load the argument into v0 and convert it.
3786 VisitForAccumulatorValue(args->at(0));
3787
3788 // Convert the object to an integer.
3789 Label done_convert;
3790 __ JumpIfSmi(v0, &done_convert);
3791 __ Push(v0);
3792 __ CallRuntime(Runtime::kToInteger, 1);
3793 __ bind(&done_convert);
3794 context()->Plug(v0);
3795 }
3796
3797
3781 void FullCodeGenerator::EmitNumberToString(CallRuntime* expr) { 3798 void FullCodeGenerator::EmitNumberToString(CallRuntime* expr) {
3782 ZoneList<Expression*>* args = expr->arguments(); 3799 ZoneList<Expression*>* args = expr->arguments();
3783 DCHECK_EQ(args->length(), 1); 3800 DCHECK_EQ(args->length(), 1);
3784 3801
3785 // Load the argument into a0 and call the stub. 3802 // Load the argument into a0 and call the stub.
3786 VisitForAccumulatorValue(args->at(0)); 3803 VisitForAccumulatorValue(args->at(0));
3787 __ mov(a0, result_register()); 3804 __ mov(a0, result_register());
3788 3805
3789 NumberToStringStub stub(isolate()); 3806 NumberToStringStub stub(isolate());
3790 __ CallStub(&stub); 3807 __ CallStub(&stub);
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5223 reinterpret_cast<uint32_t>( 5240 reinterpret_cast<uint32_t>(
5224 isolate->builtins()->OsrAfterStackCheck()->entry())); 5241 isolate->builtins()->OsrAfterStackCheck()->entry()));
5225 return OSR_AFTER_STACK_CHECK; 5242 return OSR_AFTER_STACK_CHECK;
5226 } 5243 }
5227 5244
5228 5245
5229 } // namespace internal 5246 } // namespace internal
5230 } // namespace v8 5247 } // namespace v8
5231 5248
5232 #endif // V8_TARGET_ARCH_MIPS 5249 #endif // V8_TARGET_ARCH_MIPS
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