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| 1 // Copyright 2012 the V8 project authors. All rights reserved. | 1 // Copyright 2012 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/arm/lithium-codegen-arm.h" | 5 #include "src/crankshaft/arm/lithium-codegen-arm.h" |
| 6 #include "src/arm/lithium-gap-resolver-arm.h" | 6 #include "src/crankshaft/arm/lithium-gap-resolver-arm.h" |
| 7 | 7 |
| 8 namespace v8 { | 8 namespace v8 { |
| 9 namespace internal { | 9 namespace internal { |
| 10 | 10 |
| 11 // We use the root register to spill a value while breaking a cycle in parallel | 11 // We use the root register to spill a value while breaking a cycle in parallel |
| 12 // moves. We don't need access to roots while resolving the move list and using | 12 // moves. We don't need access to roots while resolving the move list and using |
| 13 // the root register has two advantages: | 13 // the root register has two advantages: |
| 14 // - It is not in crankshaft allocatable registers list, so it can't interfere | 14 // - It is not in crankshaft allocatable registers list, so it can't interfere |
| 15 // with any of the moves we are resolving. | 15 // with any of the moves we are resolving. |
| 16 // - We don't need to push it on the stack, as we can reload it with its value | 16 // - We don't need to push it on the stack, as we can reload it with its value |
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| 292 } | 292 } |
| 293 | 293 |
| 294 moves_[index].Eliminate(); | 294 moves_[index].Eliminate(); |
| 295 } | 295 } |
| 296 | 296 |
| 297 | 297 |
| 298 #undef __ | 298 #undef __ |
| 299 | 299 |
| 300 } // namespace internal | 300 } // namespace internal |
| 301 } // namespace v8 | 301 } // namespace v8 |
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