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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 "hydrogen-bch.h" | 5 #include "src/hydrogen-bch.h" |
| 6 | 6 |
| 7 namespace v8 { | 7 namespace v8 { |
| 8 namespace internal { | 8 namespace internal { |
| 9 | 9 |
| 10 /* | 10 /* |
| 11 * This class is a table with one element for eack basic block. | 11 * This class is a table with one element for eack basic block. |
| 12 * | 12 * |
| 13 * It is used to check if, inside one loop, all execution paths contain | 13 * It is used to check if, inside one loop, all execution paths contain |
| 14 * a bounds check for a particular [index, length] combination. | 14 * a bounds check for a particular [index, length] combination. |
| 15 * The reason is that if there is a path that stays in the loop without | 15 * The reason is that if there is a path that stays in the loop without |
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| 370 | 370 |
| 371 void HBoundsCheckHoistingPhase::HoistRedundantBoundsChecks() { | 371 void HBoundsCheckHoistingPhase::HoistRedundantBoundsChecks() { |
| 372 InductionVariableBlocksTable table(graph()); | 372 InductionVariableBlocksTable table(graph()); |
| 373 table.CollectInductionVariableData(graph()->entry_block()); | 373 table.CollectInductionVariableData(graph()->entry_block()); |
| 374 for (int i = 0; i < graph()->blocks()->length(); i++) { | 374 for (int i = 0; i < graph()->blocks()->length(); i++) { |
| 375 table.EliminateRedundantBoundsChecks(graph()->blocks()->at(i)); | 375 table.EliminateRedundantBoundsChecks(graph()->blocks()->at(i)); |
| 376 } | 376 } |
| 377 } | 377 } |
| 378 | 378 |
| 379 } } // namespace v8::internal | 379 } } // namespace v8::internal |
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