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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; | 5 part of ssa; |
| 6 | 6 |
| 7 class SsaCodeGeneratorTask extends CompilerTask { | 7 class SsaCodeGeneratorTask extends CompilerTask { |
| 8 | 8 |
| 9 final JavaScriptBackend backend; | 9 final JavaScriptBackend backend; |
| 10 | 10 |
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| 1207 ready.add(current); | 1207 ready.add(current); |
| 1208 } | 1208 } |
| 1209 } | 1209 } |
| 1210 } | 1210 } |
| 1211 | 1211 |
| 1212 void assignPhisOfSuccessors(HBasicBlock node) { | 1212 void assignPhisOfSuccessors(HBasicBlock node) { |
| 1213 CopyHandler handler = variableNames.getCopyHandler(node); | 1213 CopyHandler handler = variableNames.getCopyHandler(node); |
| 1214 if (handler == null) return; | 1214 if (handler == null) return; |
| 1215 | 1215 |
| 1216 // Map the instructions to strings. | 1216 // Map the instructions to strings. |
| 1217 Iterable<Copy> copies = handler.copies.mappedBy((Copy copy) { | 1217 Iterable<Copy> copies = handler.copies.map((Copy copy) { |
| 1218 return new Copy(variableNames.getName(copy.source), | 1218 return new Copy(variableNames.getName(copy.source), |
| 1219 variableNames.getName(copy.destination)); | 1219 variableNames.getName(copy.destination)); |
| 1220 }); | 1220 }); |
| 1221 | 1221 |
| 1222 sequentializeCopies(copies, variableNames.getSwapTemp(), emitAssignment); | 1222 sequentializeCopies(copies, variableNames.getSwapTemp(), emitAssignment); |
| 1223 | 1223 |
| 1224 for (Copy copy in handler.assignments) { | 1224 for (Copy copy in handler.assignments) { |
| 1225 String name = variableNames.getName(copy.destination); | 1225 String name = variableNames.getName(copy.destination); |
| 1226 use(copy.source); | 1226 use(copy.source); |
| 1227 assignVariable(name, pop()); | 1227 assignVariable(name, pop()); |
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| 2995 if (leftType.canBeNull() && rightType.canBeNull()) { | 2995 if (leftType.canBeNull() && rightType.canBeNull()) { |
| 2996 if (left.isConstantNull() || right.isConstantNull() || | 2996 if (left.isConstantNull() || right.isConstantNull() || |
| 2997 (leftType.isPrimitive() && leftType == rightType)) { | 2997 (leftType.isPrimitive() && leftType == rightType)) { |
| 2998 return '=='; | 2998 return '=='; |
| 2999 } | 2999 } |
| 3000 return null; | 3000 return null; |
| 3001 } else { | 3001 } else { |
| 3002 return '==='; | 3002 return '==='; |
| 3003 } | 3003 } |
| 3004 } | 3004 } |
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