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Issue 680063004: [turbofan] Minor cleanups to lowering of typed array loads/stores. (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge
Patch Set: Fix win64 Created 6 years, 1 month 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/generic-node-inl.h" 5 #include "src/compiler/generic-node-inl.h"
6 #include "src/compiler/js-graph.h" 6 #include "src/compiler/js-graph.h"
7 #include "src/compiler/machine-operator.h" 7 #include "src/compiler/machine-operator.h"
8 #include "src/compiler/node-matchers.h" 8 #include "src/compiler/node-matchers.h"
9 #include "src/compiler/simplified-operator-reducer.h" 9 #include "src/compiler/simplified-operator-reducer.h"
10 10
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95 break; 95 break;
96 } 96 }
97 case IrOpcode::kChangeUint32ToTagged: { 97 case IrOpcode::kChangeUint32ToTagged: {
98 Uint32Matcher m(node->InputAt(0)); 98 Uint32Matcher m(node->InputAt(0));
99 if (m.HasValue()) return ReplaceNumber(FastUI2D(m.Value())); 99 if (m.HasValue()) return ReplaceNumber(FastUI2D(m.Value()));
100 break; 100 break;
101 } 101 }
102 case IrOpcode::kLoadElement: { 102 case IrOpcode::kLoadElement: {
103 ElementAccess access = ElementAccessOf(node->op()); 103 ElementAccess access = ElementAccessOf(node->op());
104 if (access.bounds_check == kTypedArrayBoundsCheck) { 104 if (access.bounds_check == kTypedArrayBoundsCheck) {
105 NumericValueMatcher mkey(node->InputAt(1)); 105 NumberMatcher mkey(node->InputAt(1));
106 NumericValueMatcher mlength(node->InputAt(2)); 106 NumberMatcher mlength(node->InputAt(2));
107 if (mkey.HasValue() && mlength.HasValue()) { 107 if (mkey.HasValue() && mlength.HasValue()) {
108 // Skip the typed array bounds check if key and length are constant. 108 // Skip the typed array bounds check if key and length are constant.
109 if (mkey.Value() >= 0 && mkey.Value() < mlength.Value()) { 109 if (mkey.Value() >= 0 && mkey.Value() < mlength.Value()) {
110 access.bounds_check = kNoBoundsCheck; 110 access.bounds_check = kNoBoundsCheck;
111 node->set_op(simplified()->LoadElement(access)); 111 node->set_op(simplified()->LoadElement(access));
112 return Changed(node); 112 return Changed(node);
113 } 113 }
114 } 114 }
115 } 115 }
116 break; 116 break;
117 } 117 }
118 case IrOpcode::kStoreElement: { 118 case IrOpcode::kStoreElement: {
119 ElementAccess access = ElementAccessOf(node->op()); 119 ElementAccess access = ElementAccessOf(node->op());
120 if (access.bounds_check == kTypedArrayBoundsCheck) { 120 if (access.bounds_check == kTypedArrayBoundsCheck) {
121 NumericValueMatcher mkey(node->InputAt(1)); 121 NumberMatcher mkey(node->InputAt(1));
122 NumericValueMatcher mlength(node->InputAt(2)); 122 NumberMatcher mlength(node->InputAt(2));
123 if (mkey.HasValue() && mlength.HasValue()) { 123 if (mkey.HasValue() && mlength.HasValue()) {
124 // Skip the typed array bounds check if key and length are constant. 124 // Skip the typed array bounds check if key and length are constant.
125 if (mkey.Value() >= 0 && mkey.Value() < mlength.Value()) { 125 if (mkey.Value() >= 0 && mkey.Value() < mlength.Value()) {
126 access.bounds_check = kNoBoundsCheck; 126 access.bounds_check = kNoBoundsCheck;
127 node->set_op(simplified()->StoreElement(access)); 127 node->set_op(simplified()->StoreElement(access));
128 return Changed(node); 128 return Changed(node);
129 } 129 }
130 } 130 }
131 } 131 }
132 break; 132 break;
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174 } 174 }
175 175
176 176
177 MachineOperatorBuilder* SimplifiedOperatorReducer::machine() const { 177 MachineOperatorBuilder* SimplifiedOperatorReducer::machine() const {
178 return jsgraph()->machine(); 178 return jsgraph()->machine();
179 } 179 }
180 180
181 } // namespace compiler 181 } // namespace compiler
182 } // namespace internal 182 } // namespace internal
183 } // namespace v8 183 } // namespace v8
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