| Index: src/hydrogen-sce.cc
|
| diff --git a/src/hydrogen-sce.cc b/src/hydrogen-sce.cc
|
| deleted file mode 100644
|
| index 235a94142de6eabe6be5c0684e5d1126ce520066..0000000000000000000000000000000000000000
|
| --- a/src/hydrogen-sce.cc
|
| +++ /dev/null
|
| @@ -1,39 +0,0 @@
|
| -// Copyright 2013 the V8 project authors. All rights reserved.
|
| -// Use of this source code is governed by a BSD-style license that can be
|
| -// found in the LICENSE file.
|
| -
|
| -#include "src/hydrogen-sce.h"
|
| -
|
| -namespace v8 {
|
| -namespace internal {
|
| -
|
| -void HStackCheckEliminationPhase::Run() {
|
| - // For each loop block walk the dominator tree from the backwards branch to
|
| - // the loop header. If a call instruction is encountered the backwards branch
|
| - // is dominated by a call and the stack check in the backwards branch can be
|
| - // removed.
|
| - for (int i = 0; i < graph()->blocks()->length(); i++) {
|
| - HBasicBlock* block = graph()->blocks()->at(i);
|
| - if (block->IsLoopHeader()) {
|
| - HBasicBlock* back_edge = block->loop_information()->GetLastBackEdge();
|
| - HBasicBlock* dominator = back_edge;
|
| - while (true) {
|
| - for (HInstructionIterator it(dominator); !it.Done(); it.Advance()) {
|
| - if (it.Current()->HasStackCheck()) {
|
| - block->loop_information()->stack_check()->Eliminate();
|
| - break;
|
| - }
|
| - }
|
| -
|
| - // Done when the loop header is processed.
|
| - if (dominator == block) break;
|
| -
|
| - // Move up the dominator tree.
|
| - dominator = dominator->dominator();
|
| - }
|
| - }
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| - }
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| -}
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| -
|
| -} // namespace internal
|
| -} // namespace v8
|
|
|