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
3 // found in the LICENSE file.
5 #ifndef V8_HYDROGEN_REDUNDANT_PHI_H_
6 #define V8_HYDROGEN_REDUNDANT_PHI_H_
8 #include "src/hydrogen.h"
14 // Replace all phis consisting of a single non-loop operand plus any number of
15 // loop operands by that single non-loop operand.
16 class HRedundantPhiEliminationPhase : public HPhase {
18 explicit HRedundantPhiEliminationPhase(HGraph* graph)
19 : HPhase("H_Redundant phi elimination", graph) { }
22 void ProcessBlock(HBasicBlock* block);
25 void ProcessPhis(const ZoneList<HPhi*>* phis);
27 DISALLOW_COPY_AND_ASSIGN(HRedundantPhiEliminationPhase);
31 } // namespace internal
34 #endif // V8_HYDROGEN_REDUNDANT_PHI_H_