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1 // Copyright 2014 the V8 project authors. All rights reserved. | 1 // Copyright 2014 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/compiler/pipeline.h" | 5 #include "src/compiler/pipeline.h" |
6 | 6 |
7 #include <fstream> // NOLINT(readability/streams) | 7 #include <fstream> // NOLINT(readability/streams) |
8 #include <sstream> | 8 #include <sstream> |
9 | 9 |
10 #include "src/base/platform/elapsed-timer.h" | 10 #include "src/base/platform/elapsed-timer.h" |
11 #include "src/bootstrapper.h" // TODO(mstarzinger): Only temporary. | 11 #include "src/bootstrapper.h" // TODO(mstarzinger): Only temporary. |
12 #include "src/compiler/ast-graph-builder.h" | 12 #include "src/compiler/ast-graph-builder.h" |
13 #include "src/compiler/ast-loop-assignment-analyzer.h" | 13 #include "src/compiler/ast-loop-assignment-analyzer.h" |
14 #include "src/compiler/basic-block-instrumentor.h" | 14 #include "src/compiler/basic-block-instrumentor.h" |
15 #include "src/compiler/change-lowering.h" | 15 #include "src/compiler/change-lowering.h" |
16 #include "src/compiler/code-generator.h" | 16 #include "src/compiler/code-generator.h" |
17 #include "src/compiler/common-operator-reducer.h" | 17 #include "src/compiler/common-operator-reducer.h" |
| 18 #include "src/compiler/control-flow-optimizer.h" |
18 #include "src/compiler/control-reducer.h" | 19 #include "src/compiler/control-reducer.h" |
19 #include "src/compiler/graph-replay.h" | 20 #include "src/compiler/graph-replay.h" |
20 #include "src/compiler/graph-visualizer.h" | 21 #include "src/compiler/graph-visualizer.h" |
21 #include "src/compiler/instruction.h" | 22 #include "src/compiler/instruction.h" |
22 #include "src/compiler/instruction-selector.h" | 23 #include "src/compiler/instruction-selector.h" |
23 #include "src/compiler/js-builtin-reducer.h" | 24 #include "src/compiler/js-builtin-reducer.h" |
24 #include "src/compiler/js-context-specialization.h" | 25 #include "src/compiler/js-context-specialization.h" |
25 #include "src/compiler/js-generic-lowering.h" | 26 #include "src/compiler/js-generic-lowering.h" |
26 #include "src/compiler/js-inlining.h" | 27 #include "src/compiler/js-inlining.h" |
27 #include "src/compiler/js-intrinsic-lowering.h" | 28 #include "src/compiler/js-intrinsic-lowering.h" |
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537 GraphReducer graph_reducer(data->graph(), temp_zone); | 538 GraphReducer graph_reducer(data->graph(), temp_zone); |
538 AddReducer(data, &graph_reducer, &vn_reducer); | 539 AddReducer(data, &graph_reducer, &vn_reducer); |
539 AddReducer(data, &graph_reducer, &simple_reducer); | 540 AddReducer(data, &graph_reducer, &simple_reducer); |
540 AddReducer(data, &graph_reducer, &machine_reducer); | 541 AddReducer(data, &graph_reducer, &machine_reducer); |
541 AddReducer(data, &graph_reducer, &common_reducer); | 542 AddReducer(data, &graph_reducer, &common_reducer); |
542 graph_reducer.ReduceGraph(); | 543 graph_reducer.ReduceGraph(); |
543 } | 544 } |
544 }; | 545 }; |
545 | 546 |
546 | 547 |
| 548 struct ControlFlowOptimizationPhase { |
| 549 static const char* phase_name() { return "control flow optimization"; } |
| 550 |
| 551 void Run(PipelineData* data, Zone* temp_zone) { |
| 552 ControlFlowOptimizer optimizer(data->jsgraph(), temp_zone); |
| 553 optimizer.Optimize(); |
| 554 } |
| 555 }; |
| 556 |
| 557 |
547 struct ChangeLoweringPhase { | 558 struct ChangeLoweringPhase { |
548 static const char* phase_name() { return "change lowering"; } | 559 static const char* phase_name() { return "change lowering"; } |
549 | 560 |
550 void Run(PipelineData* data, Zone* temp_zone) { | 561 void Run(PipelineData* data, Zone* temp_zone) { |
551 SourcePositionTable::Scope pos(data->source_positions(), | 562 SourcePositionTable::Scope pos(data->source_positions(), |
552 SourcePosition::Unknown()); | 563 SourcePosition::Unknown()); |
553 ValueNumberingReducer vn_reducer(temp_zone); | 564 ValueNumberingReducer vn_reducer(temp_zone); |
554 SimplifiedOperatorReducer simple_reducer(data->jsgraph()); | 565 SimplifiedOperatorReducer simple_reducer(data->jsgraph()); |
555 ChangeLowering lowering(data->jsgraph()); | 566 ChangeLowering lowering(data->jsgraph()); |
556 MachineOperatorReducer machine_reducer(data->jsgraph()); | 567 MachineOperatorReducer machine_reducer(data->jsgraph()); |
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954 if (info()->is_osr()) { | 965 if (info()->is_osr()) { |
955 Run<OsrDeconstructionPhase>(); | 966 Run<OsrDeconstructionPhase>(); |
956 if (info()->bailout_reason() != kNoReason) return Handle<Code>::null(); | 967 if (info()->bailout_reason() != kNoReason) return Handle<Code>::null(); |
957 RunPrintAndVerify("OSR deconstruction"); | 968 RunPrintAndVerify("OSR deconstruction"); |
958 } | 969 } |
959 | 970 |
960 // Lower simplified operators and insert changes. | 971 // Lower simplified operators and insert changes. |
961 Run<SimplifiedLoweringPhase>(); | 972 Run<SimplifiedLoweringPhase>(); |
962 RunPrintAndVerify("Lowered simplified"); | 973 RunPrintAndVerify("Lowered simplified"); |
963 | 974 |
| 975 // Optimize control flow. |
| 976 if (FLAG_turbo_switch) { |
| 977 Run<ControlFlowOptimizationPhase>(); |
| 978 RunPrintAndVerify("Control flow optimized"); |
| 979 } |
| 980 |
964 // Lower changes that have been inserted before. | 981 // Lower changes that have been inserted before. |
965 Run<ChangeLoweringPhase>(); | 982 Run<ChangeLoweringPhase>(); |
966 // // TODO(jarin, rossberg): Remove UNTYPED once machine typing works. | 983 // // TODO(jarin, rossberg): Remove UNTYPED once machine typing works. |
967 RunPrintAndVerify("Lowered changes", true); | 984 RunPrintAndVerify("Lowered changes", true); |
968 | 985 |
969 Run<LateControlReductionPhase>(); | 986 Run<LateControlReductionPhase>(); |
970 RunPrintAndVerify("Late Control reduced"); | 987 RunPrintAndVerify("Late Control reduced"); |
971 } else { | 988 } else { |
972 if (info()->is_osr()) { | 989 if (info()->is_osr()) { |
973 Run<OsrDeconstructionPhase>(); | 990 Run<OsrDeconstructionPhase>(); |
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1194 | 1211 |
1195 if (FLAG_trace_turbo && !data->MayHaveUnverifiableGraph()) { | 1212 if (FLAG_trace_turbo && !data->MayHaveUnverifiableGraph()) { |
1196 TurboCfgFile tcf(data->isolate()); | 1213 TurboCfgFile tcf(data->isolate()); |
1197 tcf << AsC1VAllocator("CodeGen", data->register_allocator()); | 1214 tcf << AsC1VAllocator("CodeGen", data->register_allocator()); |
1198 } | 1215 } |
1199 } | 1216 } |
1200 | 1217 |
1201 } // namespace compiler | 1218 } // namespace compiler |
1202 } // namespace internal | 1219 } // namespace internal |
1203 } // namespace v8 | 1220 } // namespace v8 |
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