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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 |
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3905 #ifdef ENABLE_DEBUGGER_SUPPORT | 3905 #ifdef ENABLE_DEBUGGER_SUPPORT |
3906 // Spill everything, even constants, to the frame. | 3906 // Spill everything, even constants, to the frame. |
3907 frame_->SpillAll(); | 3907 frame_->SpillAll(); |
3908 | 3908 |
3909 frame_->DebugBreak(); | 3909 frame_->DebugBreak(); |
3910 // Ignore the return value. | 3910 // Ignore the return value. |
3911 #endif | 3911 #endif |
3912 } | 3912 } |
3913 | 3913 |
3914 | 3914 |
3915 void CodeGenerator::InstantiateBoilerplate(Handle<JSFunction> boilerplate) { | 3915 Result CodeGenerator::InstantiateBoilerplate(Handle<JSFunction> boilerplate) { |
3916 ASSERT(boilerplate->IsBoilerplate()); | 3916 ASSERT(boilerplate->IsBoilerplate()); |
3917 | 3917 |
3918 // The inevitable call will sync frame elements to memory anyway, so | 3918 // The inevitable call will sync frame elements to memory anyway, so |
3919 // we do it eagerly to allow us to push the arguments directly into | 3919 // we do it eagerly to allow us to push the arguments directly into |
3920 // place. | 3920 // place. |
3921 frame_->SyncRange(0, frame_->element_count() - 1); | 3921 frame()->SyncRange(0, frame()->element_count() - 1); |
3922 | 3922 |
3923 // Use the fast case closure allocation code that allocates in new | 3923 // Use the fast case closure allocation code that allocates in new |
3924 // space for nested functions that don't need literals cloning. | 3924 // space for nested functions that don't need literals cloning. |
3925 if (scope()->is_function_scope() && boilerplate->NumberOfLiterals() == 0) { | 3925 if (scope()->is_function_scope() && boilerplate->NumberOfLiterals() == 0) { |
3926 FastNewClosureStub stub; | 3926 FastNewClosureStub stub; |
3927 frame_->EmitPush(Immediate(boilerplate)); | 3927 frame()->EmitPush(Immediate(boilerplate)); |
3928 Result answer = frame_->CallStub(&stub, 1); | 3928 return frame()->CallStub(&stub, 1); |
3929 frame_->Push(&answer); | |
3930 } else { | 3929 } else { |
3931 // Call the runtime to instantiate the function boilerplate | 3930 // Call the runtime to instantiate the function boilerplate |
3932 // object. | 3931 // object. |
3933 frame_->EmitPush(esi); | 3932 frame()->EmitPush(esi); |
3934 frame_->EmitPush(Immediate(boilerplate)); | 3933 frame()->EmitPush(Immediate(boilerplate)); |
3935 Result result = frame_->CallRuntime(Runtime::kNewClosure, 2); | 3934 return frame()->CallRuntime(Runtime::kNewClosure, 2); |
3936 frame_->Push(&result); | |
3937 } | 3935 } |
3938 } | 3936 } |
3939 | 3937 |
3940 | 3938 |
3941 void CodeGenerator::VisitFunctionLiteral(FunctionLiteral* node) { | 3939 void CodeGenerator::VisitFunctionLiteral(FunctionLiteral* node) { |
3942 Comment cmnt(masm_, "[ FunctionLiteral"); | 3940 Comment cmnt(masm_, "[ FunctionLiteral"); |
3943 | 3941 |
3944 // Build the function boilerplate and instantiate it. | 3942 // Build the function boilerplate and instantiate it. |
3945 Handle<JSFunction> boilerplate = | 3943 Handle<JSFunction> boilerplate = |
3946 Compiler::BuildBoilerplate(node, script(), this); | 3944 Compiler::BuildBoilerplate(node, script(), this); |
3947 // Check for stack-overflow exception. | 3945 // Check for stack-overflow exception. |
3948 if (HasStackOverflow()) return; | 3946 if (HasStackOverflow()) return; |
3949 InstantiateBoilerplate(boilerplate); | 3947 Result result = InstantiateBoilerplate(boilerplate); |
| 3948 frame()->Push(&result); |
3950 } | 3949 } |
3951 | 3950 |
3952 | 3951 |
3953 void CodeGenerator::VisitFunctionBoilerplateLiteral( | 3952 void CodeGenerator::VisitFunctionBoilerplateLiteral( |
3954 FunctionBoilerplateLiteral* node) { | 3953 FunctionBoilerplateLiteral* node) { |
3955 Comment cmnt(masm_, "[ FunctionBoilerplateLiteral"); | 3954 Comment cmnt(masm_, "[ FunctionBoilerplateLiteral"); |
3956 InstantiateBoilerplate(node->boilerplate()); | 3955 Result result = InstantiateBoilerplate(node->boilerplate()); |
| 3956 frame()->Push(&result); |
3957 } | 3957 } |
3958 | 3958 |
3959 | 3959 |
3960 void CodeGenerator::VisitConditional(Conditional* node) { | 3960 void CodeGenerator::VisitConditional(Conditional* node) { |
3961 Comment cmnt(masm_, "[ Conditional"); | 3961 Comment cmnt(masm_, "[ Conditional"); |
3962 JumpTarget then; | 3962 JumpTarget then; |
3963 JumpTarget else_; | 3963 JumpTarget else_; |
3964 JumpTarget exit; | 3964 JumpTarget exit; |
3965 ControlDestination dest(&then, &else_, true); | 3965 ControlDestination dest(&then, &else_, true); |
3966 LoadCondition(node->condition(), &dest, true); | 3966 LoadCondition(node->condition(), &dest, true); |
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10109 | 10109 |
10110 // Call the runtime; it returns -1 (less), 0 (equal), or 1 (greater) | 10110 // Call the runtime; it returns -1 (less), 0 (equal), or 1 (greater) |
10111 // tagged as a small integer. | 10111 // tagged as a small integer. |
10112 __ bind(&runtime); | 10112 __ bind(&runtime); |
10113 __ TailCallRuntime(ExternalReference(Runtime::kStringCompare), 2, 1); | 10113 __ TailCallRuntime(ExternalReference(Runtime::kStringCompare), 2, 1); |
10114 } | 10114 } |
10115 | 10115 |
10116 #undef __ | 10116 #undef __ |
10117 | 10117 |
10118 } } // namespace v8::internal | 10118 } } // namespace v8::internal |
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