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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_MIPS64 | 5 #if V8_TARGET_ARCH_MIPS64 |
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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3732 // Call the target. | 3732 // Call the target. |
3733 __ li(a0, Operand(argc)); | 3733 __ li(a0, Operand(argc)); |
3734 __ Call(isolate()->builtins()->Call(), RelocInfo::CODE_TARGET); | 3734 __ Call(isolate()->builtins()->Call(), RelocInfo::CODE_TARGET); |
3735 // Restore context register. | 3735 // Restore context register. |
3736 __ ld(cp, MemOperand(fp, StandardFrameConstants::kContextOffset)); | 3736 __ ld(cp, MemOperand(fp, StandardFrameConstants::kContextOffset)); |
3737 // Discard the function left on TOS. | 3737 // Discard the function left on TOS. |
3738 context()->DropAndPlug(1, v0); | 3738 context()->DropAndPlug(1, v0); |
3739 } | 3739 } |
3740 | 3740 |
3741 | 3741 |
3742 void FullCodeGenerator::EmitDefaultConstructorCallSuper(CallRuntime* expr) { | |
3743 ZoneList<Expression*>* args = expr->arguments(); | |
3744 DCHECK(args->length() == 2); | |
3745 | |
3746 // Evaluate new.target and super constructor. | |
3747 VisitForStackValue(args->at(0)); | |
3748 VisitForStackValue(args->at(1)); | |
3749 | |
3750 // Call the construct call builtin that handles allocation and | |
3751 // constructor invocation. | |
3752 SetConstructCallPosition(expr); | |
3753 | |
3754 // Load new target into a3. | |
3755 __ ld(a3, MemOperand(sp, 1 * kPointerSize)); | |
3756 | |
3757 // Check if the calling frame is an arguments adaptor frame. | |
3758 Label adaptor_frame, args_set_up, runtime; | |
3759 __ ld(a2, MemOperand(fp, StandardFrameConstants::kCallerFPOffset)); | |
3760 __ ld(a4, MemOperand(a2, StandardFrameConstants::kContextOffset)); | |
3761 __ Branch(&adaptor_frame, eq, a4, | |
3762 Operand(Smi::FromInt(StackFrame::ARGUMENTS_ADAPTOR))); | |
3763 // default constructor has no arguments, so no adaptor frame means no args. | |
3764 __ mov(a0, zero_reg); | |
3765 __ Branch(&args_set_up); | |
3766 | |
3767 // Copy arguments from adaptor frame. | |
3768 { | |
3769 __ bind(&adaptor_frame); | |
3770 __ ld(a1, MemOperand(a2, ArgumentsAdaptorFrameConstants::kLengthOffset)); | |
3771 __ SmiUntag(a1, a1); | |
3772 | |
3773 __ mov(a0, a1); | |
3774 | |
3775 // Get arguments pointer in a2. | |
3776 __ dsll(at, a1, kPointerSizeLog2); | |
3777 __ Daddu(a2, a2, Operand(at)); | |
3778 __ Daddu(a2, a2, Operand(StandardFrameConstants::kCallerSPOffset)); | |
3779 Label loop; | |
3780 __ bind(&loop); | |
3781 // Pre-decrement a2 with kPointerSize on each iteration. | |
3782 // Pre-decrement in order to skip receiver. | |
3783 __ Daddu(a2, a2, Operand(-kPointerSize)); | |
3784 __ ld(a4, MemOperand(a2)); | |
3785 __ Push(a4); | |
3786 __ Daddu(a1, a1, Operand(-1)); | |
3787 __ Branch(&loop, ne, a1, Operand(zero_reg)); | |
3788 } | |
3789 | |
3790 __ bind(&args_set_up); | |
3791 __ dsll(at, a0, kPointerSizeLog2); | |
3792 __ Daddu(at, at, Operand(sp)); | |
3793 __ ld(a1, MemOperand(at, 0)); | |
3794 __ Call(isolate()->builtins()->Construct(), RelocInfo::CODE_TARGET); | |
3795 | |
3796 // Restore context register. | |
3797 __ ld(cp, MemOperand(fp, StandardFrameConstants::kContextOffset)); | |
3798 | |
3799 context()->DropAndPlug(1, result_register()); | |
3800 } | |
3801 | |
3802 | |
3803 void FullCodeGenerator::EmitHasCachedArrayIndex(CallRuntime* expr) { | 3742 void FullCodeGenerator::EmitHasCachedArrayIndex(CallRuntime* expr) { |
3804 ZoneList<Expression*>* args = expr->arguments(); | 3743 ZoneList<Expression*>* args = expr->arguments(); |
3805 VisitForAccumulatorValue(args->at(0)); | 3744 VisitForAccumulatorValue(args->at(0)); |
3806 | 3745 |
3807 Label materialize_true, materialize_false; | 3746 Label materialize_true, materialize_false; |
3808 Label* if_true = NULL; | 3747 Label* if_true = NULL; |
3809 Label* if_false = NULL; | 3748 Label* if_false = NULL; |
3810 Label* fall_through = NULL; | 3749 Label* fall_through = NULL; |
3811 context()->PrepareTest(&materialize_true, &materialize_false, | 3750 context()->PrepareTest(&materialize_true, &materialize_false, |
3812 &if_true, &if_false, &fall_through); | 3751 &if_true, &if_false, &fall_through); |
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4927 reinterpret_cast<uint64_t>( | 4866 reinterpret_cast<uint64_t>( |
4928 isolate->builtins()->OsrAfterStackCheck()->entry())); | 4867 isolate->builtins()->OsrAfterStackCheck()->entry())); |
4929 return OSR_AFTER_STACK_CHECK; | 4868 return OSR_AFTER_STACK_CHECK; |
4930 } | 4869 } |
4931 | 4870 |
4932 | 4871 |
4933 } // namespace internal | 4872 } // namespace internal |
4934 } // namespace v8 | 4873 } // namespace v8 |
4935 | 4874 |
4936 #endif // V8_TARGET_ARCH_MIPS64 | 4875 #endif // V8_TARGET_ARCH_MIPS64 |
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