56a486c322
- this avoids using relative include paths which are forbidden by the style guide - makes the code more readable since it's clear which header is meant - allows for starting to use checkdeps BUG=none R=jkummerow@chromium.org, danno@chromium.org LOG=n Review URL: https://codereview.chromium.org/304153016 git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@21625 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
87 lines
2.4 KiB
C++
87 lines
2.4 KiB
C++
// Copyright 2013 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef V8_LITHIUM_CODEGEN_H_
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#define V8_LITHIUM_CODEGEN_H_
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#include "src/v8.h"
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#include "src/compiler.h"
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namespace v8 {
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namespace internal {
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class LInstruction;
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class LPlatformChunk;
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class LCodeGenBase BASE_EMBEDDED {
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public:
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LCodeGenBase(LChunk* chunk,
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MacroAssembler* assembler,
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CompilationInfo* info);
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virtual ~LCodeGenBase() {}
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// Simple accessors.
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MacroAssembler* masm() const { return masm_; }
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CompilationInfo* info() const { return info_; }
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Isolate* isolate() const { return info_->isolate(); }
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Factory* factory() const { return isolate()->factory(); }
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Heap* heap() const { return isolate()->heap(); }
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Zone* zone() const { return zone_; }
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LPlatformChunk* chunk() const { return chunk_; }
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HGraph* graph() const;
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void FPRINTF_CHECKING Comment(const char* format, ...);
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bool GenerateBody();
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virtual void GenerateBodyInstructionPre(LInstruction* instr) {}
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virtual void GenerateBodyInstructionPost(LInstruction* instr) {}
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virtual void EnsureSpaceForLazyDeopt(int space_needed) = 0;
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virtual void RecordAndWritePosition(int position) = 0;
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int GetNextEmittedBlock() const;
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void RegisterWeakObjectsInOptimizedCode(Handle<Code> code);
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// Check that an environment assigned via AssignEnvironment is actually being
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// used. Redundant assignments keep things alive longer than necessary, and
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// consequently lead to worse code, so it's important to minimize this.
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void CheckEnvironmentUsage();
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protected:
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enum Status {
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UNUSED,
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GENERATING,
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DONE,
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ABORTED
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};
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LPlatformChunk* const chunk_;
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MacroAssembler* const masm_;
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CompilationInfo* const info_;
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Zone* zone_;
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Status status_;
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int current_block_;
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int current_instruction_;
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const ZoneList<LInstruction*>* instructions_;
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int last_lazy_deopt_pc_;
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bool is_unused() const { return status_ == UNUSED; }
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bool is_generating() const { return status_ == GENERATING; }
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bool is_done() const { return status_ == DONE; }
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bool is_aborted() const { return status_ == ABORTED; }
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void Abort(BailoutReason reason);
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// Methods for code dependencies.
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void AddDeprecationDependency(Handle<Map> map);
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void AddStabilityDependency(Handle<Map> map);
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};
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} } // namespace v8::internal
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#endif // V8_LITHIUM_CODEGEN_H_
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