Index: src/hydrogen-mark-deoptimize.h |
diff --git a/src/hydrogen-mark-deoptimize.h b/src/hydrogen-mark-deoptimize.h |
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--- a/src/hydrogen-mark-deoptimize.h |
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-// Copyright 2013 the V8 project authors. All rights reserved. |
-// Redistribution and use in source and binary forms, with or without |
-// modification, are permitted provided that the following conditions are |
-// met: |
-// |
-// * Redistributions of source code must retain the above copyright |
-// notice, this list of conditions and the following disclaimer. |
-// * Redistributions in binary form must reproduce the above |
-// copyright notice, this list of conditions and the following |
-// disclaimer in the documentation and/or other materials provided |
-// with the distribution. |
-// * Neither the name of Google Inc. nor the names of its |
-// contributors may be used to endorse or promote products derived |
-// from this software without specific prior written permission. |
-// |
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
- |
-#ifndef V8_HYDROGEN_MARK_DEOPTIMIZE_H_ |
-#define V8_HYDROGEN_MARK_DEOPTIMIZE_H_ |
- |
-#include "hydrogen.h" |
- |
-namespace v8 { |
-namespace internal { |
- |
- |
-// Compute DeoptimizeOnUndefined flag for phis. Any phi that can reach a use |
-// with DeoptimizeOnUndefined set must have DeoptimizeOnUndefined set. |
-// Currently only HCompareNumericAndBranch, with double input representation, |
-// has this flag set. The flag is used by HChange tagged->double, which must |
-// deoptimize if one of its uses has this flag set. |
-class HMarkDeoptimizeOnUndefinedPhase : public HPhase { |
- public: |
- explicit HMarkDeoptimizeOnUndefinedPhase(HGraph* graph) |
- : HPhase("H_Mark deoptimize on undefined", graph), |
- worklist_(16, zone()) {} |
- |
- void Run(); |
- |
- private: |
- void ProcessPhi(HPhi* phi); |
- |
- // Preallocated worklist used as an optimization so we don't have |
- // to allocate a new ZoneList for every ProcessPhi() invocation. |
- ZoneList<HPhi*> worklist_; |
- |
- DISALLOW_COPY_AND_ASSIGN(HMarkDeoptimizeOnUndefinedPhase); |
-}; |
- |
- |
-} } // namespace v8::internal |
- |
-#endif // V8_HYDROGEN_MARK_DEOPTIMIZE_H_ |