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Issue 2428493002: [turbofan] Eliminate redundant ChangeTaggedSignedToInt32. (Closed)
Patch Set: Created 4 years, 2 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/simplified-operator-reducer.h" 5 #include "src/compiler/simplified-operator-reducer.h"
6 6
7 #include "src/compiler/js-graph.h" 7 #include "src/compiler/js-graph.h"
8 #include "src/compiler/machine-operator.h" 8 #include "src/compiler/machine-operator.h"
9 #include "src/compiler/node-matchers.h" 9 #include "src/compiler/node-matchers.h"
10 #include "src/compiler/operator-properties.h" 10 #include "src/compiler/operator-properties.h"
(...skipping 71 matching lines...) Expand 10 before | Expand all | Expand 10 after
82 if (m.HasValue()) return ReplaceFloat64(m.Value()); 82 if (m.HasValue()) return ReplaceFloat64(m.Value());
83 if (m.IsChangeFloat64ToTagged()) return Replace(m.node()->InputAt(0)); 83 if (m.IsChangeFloat64ToTagged()) return Replace(m.node()->InputAt(0));
84 if (m.IsChangeInt31ToTaggedSigned() || m.IsChangeInt32ToTagged()) { 84 if (m.IsChangeInt31ToTaggedSigned() || m.IsChangeInt32ToTagged()) {
85 return Change(node, machine()->ChangeInt32ToFloat64(), m.InputAt(0)); 85 return Change(node, machine()->ChangeInt32ToFloat64(), m.InputAt(0));
86 } 86 }
87 if (m.IsChangeUint32ToTagged()) { 87 if (m.IsChangeUint32ToTagged()) {
88 return Change(node, machine()->ChangeUint32ToFloat64(), m.InputAt(0)); 88 return Change(node, machine()->ChangeUint32ToFloat64(), m.InputAt(0));
89 } 89 }
90 break; 90 break;
91 } 91 }
92 case IrOpcode::kChangeTaggedSignedToInt32:
92 case IrOpcode::kChangeTaggedToInt32: { 93 case IrOpcode::kChangeTaggedToInt32: {
93 NumberMatcher m(node->InputAt(0)); 94 NumberMatcher m(node->InputAt(0));
94 if (m.HasValue()) return ReplaceInt32(DoubleToInt32(m.Value())); 95 if (m.HasValue()) return ReplaceInt32(DoubleToInt32(m.Value()));
95 if (m.IsChangeFloat64ToTagged()) { 96 if (m.IsChangeFloat64ToTagged()) {
96 return Change(node, machine()->ChangeFloat64ToInt32(), m.InputAt(0)); 97 return Change(node, machine()->ChangeFloat64ToInt32(), m.InputAt(0));
97 } 98 }
98 if (m.IsChangeInt31ToTaggedSigned() || m.IsChangeInt32ToTagged()) { 99 if (m.IsChangeInt31ToTaggedSigned() || m.IsChangeInt32ToTagged()) {
99 return Replace(m.InputAt(0)); 100 return Replace(m.InputAt(0));
100 } 101 }
101 break; 102 break;
(...skipping 148 matching lines...) Expand 10 before | Expand all | Expand 10 after
250 return jsgraph()->isolate(); 251 return jsgraph()->isolate();
251 } 252 }
252 253
253 MachineOperatorBuilder* SimplifiedOperatorReducer::machine() const { 254 MachineOperatorBuilder* SimplifiedOperatorReducer::machine() const {
254 return jsgraph()->machine(); 255 return jsgraph()->machine();
255 } 256 }
256 257
257 } // namespace compiler 258 } // namespace compiler
258 } // namespace internal 259 } // namespace internal
259 } // namespace v8 260 } // namespace v8
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