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| 1 // Copyright 2013 the V8 project authors. All rights reserved. | 1 // Copyright 2013 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/hydrogen-canonicalize.h" | 5 #include "src/crankshaft/hydrogen-canonicalize.h" |
| 6 #include "src/hydrogen-redundant-phi.h" | 6 |
| 7 #include "src/crankshaft/hydrogen-redundant-phi.h" |
| 7 | 8 |
| 8 namespace v8 { | 9 namespace v8 { |
| 9 namespace internal { | 10 namespace internal { |
| 10 | 11 |
| 11 void HCanonicalizePhase::Run() { | 12 void HCanonicalizePhase::Run() { |
| 12 const ZoneList<HBasicBlock*>* blocks(graph()->blocks()); | 13 const ZoneList<HBasicBlock*>* blocks(graph()->blocks()); |
| 13 // Before removing no-op instructions, save their semantic value. | 14 // Before removing no-op instructions, save their semantic value. |
| 14 // We must be careful not to set the flag unnecessarily, because GVN | 15 // We must be careful not to set the flag unnecessarily, because GVN |
| 15 // cannot identify two instructions when their flag value differs. | 16 // cannot identify two instructions when their flag value differs. |
| 16 for (int i = 0; i < blocks->length(); ++i) { | 17 for (int i = 0; i < blocks->length(); ++i) { |
| (...skipping 30 matching lines...) Expand all Loading... |
| 47 for (HInstructionIterator it(blocks->at(i)); !it.Done(); it.Advance()) { | 48 for (HInstructionIterator it(blocks->at(i)); !it.Done(); it.Advance()) { |
| 48 HInstruction* instr = it.Current(); | 49 HInstruction* instr = it.Current(); |
| 49 HValue* value = instr->Canonicalize(); | 50 HValue* value = instr->Canonicalize(); |
| 50 if (value != instr) instr->DeleteAndReplaceWith(value); | 51 if (value != instr) instr->DeleteAndReplaceWith(value); |
| 51 } | 52 } |
| 52 } | 53 } |
| 53 } | 54 } |
| 54 | 55 |
| 55 } // namespace internal | 56 } // namespace internal |
| 56 } // namespace v8 | 57 } // namespace v8 |
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