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1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file |
2 // for details. All rights reserved. Use of this source code is governed by a | 2 // for details. All rights reserved. Use of this source code is governed by a |
3 // BSD-style license that can be found in the LICENSE file. | 3 // BSD-style license that can be found in the LICENSE file. |
4 | 4 |
5 part of ssa; | |
6 | |
7 class SsaCodeGeneratorTask extends CompilerTask { | 5 class SsaCodeGeneratorTask extends CompilerTask { |
8 | 6 |
9 final JavaScriptBackend backend; | 7 final JavaScriptBackend backend; |
10 | 8 |
11 SsaCodeGeneratorTask(JavaScriptBackend backend) | 9 SsaCodeGeneratorTask(JavaScriptBackend backend) |
12 : this.backend = backend, | 10 : this.backend = backend, |
13 super(backend.compiler); | 11 super(backend.compiler); |
14 String get name => 'SSA code generator'; | 12 String get name => 'SSA code generator'; |
15 NativeEmitter get nativeEmitter => backend.emitter.nativeEmitter; | 13 NativeEmitter get nativeEmitter => backend.emitter.nativeEmitter; |
16 | 14 |
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2992 if (leftType.canBeNull() && rightType.canBeNull()) { | 2990 if (leftType.canBeNull() && rightType.canBeNull()) { |
2993 if (left.isConstantNull() || right.isConstantNull() || | 2991 if (left.isConstantNull() || right.isConstantNull() || |
2994 (leftType.isPrimitive() && leftType == rightType)) { | 2992 (leftType.isPrimitive() && leftType == rightType)) { |
2995 return '=='; | 2993 return '=='; |
2996 } | 2994 } |
2997 return null; | 2995 return null; |
2998 } else { | 2996 } else { |
2999 return '==='; | 2997 return '==='; |
3000 } | 2998 } |
3001 } | 2999 } |
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