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Issue 813813003: Revert of Remove obsolete V8_INFINITY macro. (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@master
Patch Set: Created 6 years 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/js-builtin-reducer.h"
6
7 #include <limits>
8
9 #include "src/compiler/diamond.h" 5 #include "src/compiler/diamond.h"
10 #include "src/compiler/graph-inl.h" 6 #include "src/compiler/graph-inl.h"
7 #include "src/compiler/js-builtin-reducer.h"
11 #include "src/compiler/js-graph.h" 8 #include "src/compiler/js-graph.h"
12 #include "src/compiler/node-matchers.h" 9 #include "src/compiler/node-matchers.h"
13 #include "src/compiler/node-properties-inl.h" 10 #include "src/compiler/node-properties-inl.h"
14 #include "src/types.h" 11 #include "src/types.h"
15 12
16 namespace v8 { 13 namespace v8 {
17 namespace internal { 14 namespace internal {
18 namespace compiler { 15 namespace compiler {
19 16
20 17
(...skipping 113 matching lines...) Expand 10 before | Expand all | Expand 10 after
134 } 131 }
135 return NoChange(); 132 return NoChange();
136 } 133 }
137 134
138 135
139 // ECMA-262, section 15.8.2.11. 136 // ECMA-262, section 15.8.2.11.
140 Reduction JSBuiltinReducer::ReduceMathMax(Node* node) { 137 Reduction JSBuiltinReducer::ReduceMathMax(Node* node) {
141 JSCallReduction r(node); 138 JSCallReduction r(node);
142 if (r.InputsMatchZero()) { 139 if (r.InputsMatchZero()) {
143 // Math.max() -> -Infinity 140 // Math.max() -> -Infinity
144 return Replace( 141 return Replace(jsgraph()->Constant(-V8_INFINITY));
145 jsgraph()->Constant(-std::numeric_limits<double>::infinity()));
146 } 142 }
147 if (r.InputsMatchOne(Type::Number())) { 143 if (r.InputsMatchOne(Type::Number())) {
148 // Math.max(a:number) -> a 144 // Math.max(a:number) -> a
149 return Replace(r.left()); 145 return Replace(r.left());
150 } 146 }
151 if (r.InputsMatchAll(Type::Integral32())) { 147 if (r.InputsMatchAll(Type::Integral32())) {
152 // Math.max(a:int32, b:int32, ...) 148 // Math.max(a:int32, b:int32, ...)
153 Node* value = r.GetJSCallInput(0); 149 Node* value = r.GetJSCallInput(0);
154 for (int i = 1; i < r.GetJSCallArity(); i++) { 150 for (int i = 1; i < r.GetJSCallArity(); i++) {
155 Node* const input = r.GetJSCallInput(i); 151 Node* const input = r.GetJSCallInput(i);
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250 } 246 }
251 247
252 248
253 MachineOperatorBuilder* JSBuiltinReducer::machine() const { 249 MachineOperatorBuilder* JSBuiltinReducer::machine() const {
254 return jsgraph()->machine(); 250 return jsgraph()->machine();
255 } 251 }
256 252
257 } // namespace compiler 253 } // namespace compiler
258 } // namespace internal 254 } // namespace internal
259 } // namespace v8 255 } // namespace v8
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