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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 #include "src/full-codegen/full-codegen.h" | 5 #include "src/full-codegen/full-codegen.h" |
6 | 6 |
7 #include "src/ast/ast-numbering.h" | 7 #include "src/ast/ast-numbering.h" |
8 #include "src/ast/ast.h" | 8 #include "src/ast/ast.h" |
9 #include "src/ast/prettyprinter.h" | 9 #include "src/ast/prettyprinter.h" |
10 #include "src/ast/scopes.h" | 10 #include "src/ast/scopes.h" |
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21 #include "src/snapshot/snapshot.h" | 21 #include "src/snapshot/snapshot.h" |
22 #include "src/tracing/trace-event.h" | 22 #include "src/tracing/trace-event.h" |
23 | 23 |
24 namespace v8 { | 24 namespace v8 { |
25 namespace internal { | 25 namespace internal { |
26 | 26 |
27 #define __ ACCESS_MASM(masm()) | 27 #define __ ACCESS_MASM(masm()) |
28 | 28 |
29 class FullCodegenCompilationJob final : public CompilationJob { | 29 class FullCodegenCompilationJob final : public CompilationJob { |
30 public: | 30 public: |
31 FullCodegenCompilationJob(CompilationInfo* info, LazyCompilationMode mode) | 31 explicit FullCodegenCompilationJob(CompilationInfo* info) |
32 : CompilationJob(info->isolate(), info, "Full-Codegen"), mode_(mode) {} | 32 : CompilationJob(info->isolate(), info, "Full-Codegen") {} |
33 | 33 |
34 bool can_execute_on_background_thread() const override { return false; } | 34 bool can_execute_on_background_thread() const override { return false; } |
35 | 35 |
36 CompilationJob::Status PrepareJobImpl() final { return SUCCEEDED; } | 36 CompilationJob::Status PrepareJobImpl() final { return SUCCEEDED; } |
37 | 37 |
38 CompilationJob::Status ExecuteJobImpl() final { | 38 CompilationJob::Status ExecuteJobImpl() final { |
39 DCHECK(ThreadId::Current().Equals(isolate()->thread_id())); | 39 DCHECK(ThreadId::Current().Equals(isolate()->thread_id())); |
40 return FullCodeGenerator::MakeCode(info(), stack_limit(), mode_) ? SUCCEEDED | 40 return FullCodeGenerator::MakeCode(info(), stack_limit()) ? SUCCEEDED |
41 : FAILED; | 41 : FAILED; |
42 } | 42 } |
43 | 43 |
44 CompilationJob::Status FinalizeJobImpl() final { return SUCCEEDED; } | 44 CompilationJob::Status FinalizeJobImpl() final { return SUCCEEDED; } |
45 | 45 |
46 private: | 46 private: |
47 LazyCompilationMode mode_; | |
48 | |
49 DISALLOW_COPY_AND_ASSIGN(FullCodegenCompilationJob); | 47 DISALLOW_COPY_AND_ASSIGN(FullCodegenCompilationJob); |
50 }; | 48 }; |
51 | 49 |
52 FullCodeGenerator::FullCodeGenerator(MacroAssembler* masm, | 50 FullCodeGenerator::FullCodeGenerator(MacroAssembler* masm, |
53 CompilationInfo* info, | 51 CompilationInfo* info, |
54 uintptr_t stack_limit, | 52 uintptr_t stack_limit) |
55 LazyCompilationMode mode) | |
56 : masm_(masm), | 53 : masm_(masm), |
57 info_(info), | 54 info_(info), |
58 isolate_(info->isolate()), | 55 isolate_(info->isolate()), |
59 compilation_mode_(mode), | |
60 zone_(info->zone()), | 56 zone_(info->zone()), |
61 scope_(info->scope()), | 57 scope_(info->scope()), |
62 nesting_stack_(NULL), | 58 nesting_stack_(NULL), |
63 loop_depth_(0), | 59 loop_depth_(0), |
64 operand_stack_depth_(0), | 60 operand_stack_depth_(0), |
65 globals_(NULL), | 61 globals_(NULL), |
66 context_(NULL), | 62 context_(NULL), |
67 bailout_entries_(info->HasDeoptimizationSupport() | 63 bailout_entries_(info->HasDeoptimizationSupport() |
68 ? info->literal()->ast_node_count() | 64 ? info->literal()->ast_node_count() |
69 : 0, | 65 : 0, |
70 info->zone()), | 66 info->zone()), |
71 back_edges_(2, info->zone()), | 67 back_edges_(2, info->zone()), |
72 source_position_table_builder_(info->zone(), | 68 source_position_table_builder_(info->zone(), |
73 info->SourcePositionRecordingMode()), | 69 info->SourcePositionRecordingMode()), |
74 ic_total_count_(0) { | 70 ic_total_count_(0) { |
75 DCHECK(!info->IsStub()); | 71 DCHECK(!info->IsStub()); |
76 Initialize(stack_limit); | 72 Initialize(stack_limit); |
77 } | 73 } |
78 | 74 |
79 // static | 75 // static |
80 CompilationJob* FullCodeGenerator::NewCompilationJob(CompilationInfo* info, | 76 CompilationJob* FullCodeGenerator::NewCompilationJob(CompilationInfo* info) { |
81 LazyCompilationMode mode) { | 77 return new FullCodegenCompilationJob(info); |
82 return new FullCodegenCompilationJob(info, mode); | |
83 } | 78 } |
84 | 79 |
85 // static | 80 // static |
86 bool FullCodeGenerator::MakeCode(CompilationInfo* info) { | 81 bool FullCodeGenerator::MakeCode(CompilationInfo* info) { |
87 return MakeCode(info, info->isolate()->stack_guard()->real_climit(), | 82 return MakeCode(info, info->isolate()->stack_guard()->real_climit()); |
88 LazyCompilationMode::kIfRequested); | |
89 } | 83 } |
90 | 84 |
91 // static | 85 // static |
92 bool FullCodeGenerator::MakeCode(CompilationInfo* info, uintptr_t stack_limit, | 86 bool FullCodeGenerator::MakeCode(CompilationInfo* info, uintptr_t stack_limit) { |
93 LazyCompilationMode mode) { | |
94 Isolate* isolate = info->isolate(); | 87 Isolate* isolate = info->isolate(); |
95 | 88 |
96 DCHECK(!info->shared_info()->must_use_ignition_turbo()); | 89 DCHECK(!info->shared_info()->must_use_ignition_turbo()); |
97 DCHECK(!FLAG_minimal); | 90 DCHECK(!FLAG_minimal); |
98 RuntimeCallTimerScope runtimeTimer(isolate, | 91 RuntimeCallTimerScope runtimeTimer(isolate, |
99 &RuntimeCallStats::CompileFullCode); | 92 &RuntimeCallStats::CompileFullCode); |
100 TimerEventScope<TimerEventCompileFullCode> timer(info->isolate()); | 93 TimerEventScope<TimerEventCompileFullCode> timer(info->isolate()); |
101 TRACE_EVENT0(TRACE_DISABLED_BY_DEFAULT("v8.compile"), "V8.CompileFullCode"); | 94 TRACE_EVENT0(TRACE_DISABLED_BY_DEFAULT("v8.compile"), "V8.CompileFullCode"); |
102 | 95 |
103 Handle<Script> script = info->script(); | 96 Handle<Script> script = info->script(); |
104 if (!script->IsUndefined(isolate) && | 97 if (!script->IsUndefined(isolate) && |
105 !script->source()->IsUndefined(isolate)) { | 98 !script->source()->IsUndefined(isolate)) { |
106 int len = String::cast(script->source())->length(); | 99 int len = String::cast(script->source())->length(); |
107 isolate->counters()->total_full_codegen_source_size()->Increment(len); | 100 isolate->counters()->total_full_codegen_source_size()->Increment(len); |
108 } | 101 } |
109 CodeGenerator::MakeCodePrologue(info, "full"); | 102 CodeGenerator::MakeCodePrologue(info, "full"); |
110 const int kInitialBufferSize = 4 * KB; | 103 const int kInitialBufferSize = 4 * KB; |
111 MacroAssembler masm(info->isolate(), NULL, kInitialBufferSize, | 104 MacroAssembler masm(info->isolate(), NULL, kInitialBufferSize, |
112 CodeObjectRequired::kYes); | 105 CodeObjectRequired::kYes); |
113 if (info->will_serialize()) masm.enable_serializer(); | 106 if (info->will_serialize()) masm.enable_serializer(); |
114 | 107 |
115 FullCodeGenerator cgen(&masm, info, stack_limit, mode); | 108 FullCodeGenerator cgen(&masm, info, stack_limit); |
116 cgen.Generate(); | 109 cgen.Generate(); |
117 if (cgen.HasStackOverflow()) { | 110 if (cgen.HasStackOverflow()) { |
118 DCHECK(!isolate->has_pending_exception()); | 111 DCHECK(!isolate->has_pending_exception()); |
119 return false; | 112 return false; |
120 } | 113 } |
121 unsigned table_offset = cgen.EmitBackEdgeTable(); | 114 unsigned table_offset = cgen.EmitBackEdgeTable(); |
122 | 115 |
123 Handle<Code> code = | 116 Handle<Code> code = |
124 CodeGenerator::MakeCodeEpilogue(&masm, nullptr, info, masm.CodeObject()); | 117 CodeGenerator::MakeCodeEpilogue(&masm, nullptr, info, masm.CodeObject()); |
125 cgen.PopulateDeoptimizationData(code); | 118 cgen.PopulateDeoptimizationData(code); |
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1286 Comment cmnt(masm_, "[ Literal"); | 1279 Comment cmnt(masm_, "[ Literal"); |
1287 context()->Plug(expr->value()); | 1280 context()->Plug(expr->value()); |
1288 } | 1281 } |
1289 | 1282 |
1290 | 1283 |
1291 void FullCodeGenerator::VisitFunctionLiteral(FunctionLiteral* expr) { | 1284 void FullCodeGenerator::VisitFunctionLiteral(FunctionLiteral* expr) { |
1292 Comment cmnt(masm_, "[ FunctionLiteral"); | 1285 Comment cmnt(masm_, "[ FunctionLiteral"); |
1293 | 1286 |
1294 // Build the function boilerplate and instantiate it. | 1287 // Build the function boilerplate and instantiate it. |
1295 Handle<SharedFunctionInfo> function_info = | 1288 Handle<SharedFunctionInfo> function_info = |
1296 Compiler::GetSharedFunctionInfo(expr, script(), info_, compilation_mode_); | 1289 Compiler::GetSharedFunctionInfo(expr, script(), info_); |
1297 if (function_info.is_null()) { | 1290 if (function_info.is_null()) { |
1298 SetStackOverflow(); | 1291 SetStackOverflow(); |
1299 return; | 1292 return; |
1300 } | 1293 } |
1301 EmitNewClosure(function_info, expr->LiteralFeedbackSlot(), expr->pretenure()); | 1294 EmitNewClosure(function_info, expr->LiteralFeedbackSlot(), expr->pretenure()); |
1302 } | 1295 } |
1303 | 1296 |
1304 | 1297 |
1305 void FullCodeGenerator::VisitClassLiteral(ClassLiteral* lit) { | 1298 void FullCodeGenerator::VisitClassLiteral(ClassLiteral* lit) { |
1306 // Unsupported | 1299 // Unsupported |
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1610 return info_->has_simple_parameters(); | 1603 return info_->has_simple_parameters(); |
1611 } | 1604 } |
1612 | 1605 |
1613 FunctionLiteral* FullCodeGenerator::literal() const { return info_->literal(); } | 1606 FunctionLiteral* FullCodeGenerator::literal() const { return info_->literal(); } |
1614 | 1607 |
1615 #undef __ | 1608 #undef __ |
1616 | 1609 |
1617 | 1610 |
1618 } // namespace internal | 1611 } // namespace internal |
1619 } // namespace v8 | 1612 } // namespace v8 |
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