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Issue 1405363003: Move Hydrogen and Lithium to src/crankshaft/ (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@master
Patch Set: rebased Created 5 years, 2 months ago
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1 // Copyright 2013 the V8 project authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4
5 #ifndef V8_LITHIUM_CODEGEN_H_
6 #define V8_LITHIUM_CODEGEN_H_
7
8 #include "src/bailout-reason.h"
9 #include "src/compiler.h"
10 #include "src/deoptimizer.h"
11
12 namespace v8 {
13 namespace internal {
14
15 class LEnvironment;
16 class LInstruction;
17 class LPlatformChunk;
18
19 class LCodeGenBase BASE_EMBEDDED {
20 public:
21 LCodeGenBase(LChunk* chunk,
22 MacroAssembler* assembler,
23 CompilationInfo* info);
24 virtual ~LCodeGenBase() {}
25
26 // Simple accessors.
27 MacroAssembler* masm() const { return masm_; }
28 CompilationInfo* info() const { return info_; }
29 Isolate* isolate() const { return info_->isolate(); }
30 Factory* factory() const { return isolate()->factory(); }
31 Heap* heap() const { return isolate()->heap(); }
32 Zone* zone() const { return zone_; }
33 LPlatformChunk* chunk() const { return chunk_; }
34 HGraph* graph() const;
35
36 void FPRINTF_CHECKING Comment(const char* format, ...);
37 void DeoptComment(const Deoptimizer::DeoptInfo& deopt_info);
38 static Deoptimizer::DeoptInfo MakeDeoptInfo(
39 LInstruction* instr, Deoptimizer::DeoptReason deopt_reason);
40
41 bool GenerateBody();
42 virtual void GenerateBodyInstructionPre(LInstruction* instr) {}
43 virtual void GenerateBodyInstructionPost(LInstruction* instr) {}
44
45 virtual void EnsureSpaceForLazyDeopt(int space_needed) = 0;
46 virtual void RecordAndWritePosition(int position) = 0;
47
48 int GetNextEmittedBlock() const;
49
50 void RegisterWeakObjectsInOptimizedCode(Handle<Code> code);
51
52 void WriteTranslationFrame(LEnvironment* environment,
53 Translation* translation);
54 int DefineDeoptimizationLiteral(Handle<Object> literal);
55
56 // Check that an environment assigned via AssignEnvironment is actually being
57 // used. Redundant assignments keep things alive longer than necessary, and
58 // consequently lead to worse code, so it's important to minimize this.
59 void CheckEnvironmentUsage();
60
61 protected:
62 enum Status {
63 UNUSED,
64 GENERATING,
65 DONE,
66 ABORTED
67 };
68
69 LPlatformChunk* const chunk_;
70 MacroAssembler* const masm_;
71 CompilationInfo* const info_;
72 Zone* zone_;
73 Status status_;
74 int current_block_;
75 int current_instruction_;
76 const ZoneList<LInstruction*>* instructions_;
77 ZoneList<Handle<Object> > deoptimization_literals_;
78 int last_lazy_deopt_pc_;
79
80 bool is_unused() const { return status_ == UNUSED; }
81 bool is_generating() const { return status_ == GENERATING; }
82 bool is_done() const { return status_ == DONE; }
83 bool is_aborted() const { return status_ == ABORTED; }
84
85 void Abort(BailoutReason reason);
86 void Retry(BailoutReason reason);
87
88 // Methods for code dependencies.
89 void AddDeprecationDependency(Handle<Map> map);
90 void AddStabilityDependency(Handle<Map> map);
91 };
92
93
94 } // namespace internal
95 } // namespace v8
96
97 #endif // V8_LITHIUM_CODEGEN_H_
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