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Side by Side Diff: src/compiler/common-operator.cc

Issue 2222513002: [turbofan] Insert sigma nodes for loop variable backedge. (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@master
Patch Set: Created 4 years, 4 months ago
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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/common-operator.h" 5 #include "src/compiler/common-operator.h"
6 6
7 #include "src/assembler.h" 7 #include "src/assembler.h"
8 #include "src/base/lazy-instance.h" 8 #include "src/base/lazy-instance.h"
9 #include "src/compiler/linkage.h" 9 #include "src/compiler/linkage.h"
10 #include "src/compiler/opcodes.h" 10 #include "src/compiler/opcodes.h"
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214 } 214 }
215 UNREACHABLE(); 215 UNREACHABLE();
216 return os; 216 return os;
217 } 217 }
218 218
219 RegionObservability RegionObservabilityOf(Operator const* op) { 219 RegionObservability RegionObservabilityOf(Operator const* op) {
220 DCHECK_EQ(IrOpcode::kBeginRegion, op->opcode()); 220 DCHECK_EQ(IrOpcode::kBeginRegion, op->opcode());
221 return OpParameter<RegionObservability>(op); 221 return OpParameter<RegionObservability>(op);
222 } 222 }
223 223
224 Type* SigmaTypeOf(Operator const* op) {
225 DCHECK_EQ(IrOpcode::kSigma, op->opcode());
226 return OpParameter<Type*>(op);
227 }
228
224 std::ostream& operator<<(std::ostream& os, 229 std::ostream& operator<<(std::ostream& os,
225 const ZoneVector<MachineType>* types) { 230 const ZoneVector<MachineType>* types) {
226 // Print all the MachineTypes, separated by commas. 231 // Print all the MachineTypes, separated by commas.
227 bool first = true; 232 bool first = true;
228 for (MachineType elem : *types) { 233 for (MachineType elem : *types) {
229 if (!first) { 234 if (!first) {
230 os << ", "; 235 os << ", ";
231 } 236 }
232 first = false; 237 first = false;
233 os << elem; 238 os << elem;
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846 CACHED_PHI_LIST(CACHED_PHI) 851 CACHED_PHI_LIST(CACHED_PHI)
847 #undef CACHED_PHI 852 #undef CACHED_PHI
848 // Uncached. 853 // Uncached.
849 return new (zone()) Operator1<MachineRepresentation>( // -- 854 return new (zone()) Operator1<MachineRepresentation>( // --
850 IrOpcode::kPhi, Operator::kPure, // opcode 855 IrOpcode::kPhi, Operator::kPure, // opcode
851 "Phi", // name 856 "Phi", // name
852 value_input_count, 0, 1, 1, 0, 0, // counts 857 value_input_count, 0, 1, 1, 0, 0, // counts
853 rep); // parameter 858 rep); // parameter
854 } 859 }
855 860
861 const Operator* CommonOperatorBuilder::Sigma(Type* type) {
862 return new (zone()) Operator1<Type*>( // --
863 IrOpcode::kSigma, Operator::kPure, // opcode
864 "Sigma", // name
865 1, 0, 1, 1, 0, 0, // counts
866 type); // parameter
867 }
856 868
857 const Operator* CommonOperatorBuilder::EffectPhi(int effect_input_count) { 869 const Operator* CommonOperatorBuilder::EffectPhi(int effect_input_count) {
858 DCHECK(effect_input_count > 0); // Disallow empty effect phis. 870 DCHECK(effect_input_count > 0); // Disallow empty effect phis.
859 switch (effect_input_count) { 871 switch (effect_input_count) {
860 #define CACHED_EFFECT_PHI(input_count) \ 872 #define CACHED_EFFECT_PHI(input_count) \
861 case input_count: \ 873 case input_count: \
862 return &cache_.kEffectPhi##input_count##Operator; 874 return &cache_.kEffectPhi##input_count##Operator;
863 CACHED_EFFECT_PHI_LIST(CACHED_EFFECT_PHI) 875 CACHED_EFFECT_PHI_LIST(CACHED_EFFECT_PHI)
864 #undef CACHED_EFFECT_PHI 876 #undef CACHED_EFFECT_PHI
865 default: 877 default:
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1030 CommonOperatorBuilder::CreateFrameStateFunctionInfo( 1042 CommonOperatorBuilder::CreateFrameStateFunctionInfo(
1031 FrameStateType type, int parameter_count, int local_count, 1043 FrameStateType type, int parameter_count, int local_count,
1032 Handle<SharedFunctionInfo> shared_info) { 1044 Handle<SharedFunctionInfo> shared_info) {
1033 return new (zone()->New(sizeof(FrameStateFunctionInfo))) 1045 return new (zone()->New(sizeof(FrameStateFunctionInfo)))
1034 FrameStateFunctionInfo(type, parameter_count, local_count, shared_info); 1046 FrameStateFunctionInfo(type, parameter_count, local_count, shared_info);
1035 } 1047 }
1036 1048
1037 } // namespace compiler 1049 } // namespace compiler
1038 } // namespace internal 1050 } // namespace internal
1039 } // namespace v8 1051 } // namespace v8
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