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// Copyright 2014 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.
#ifndef V8_COMPILER_CONTROL_REDUCER_H_
#define V8_COMPILER_CONTROL_REDUCER_H_
namespace v8 {
namespace internal {
// Forward declarations.
class Zone;
namespace compiler {
// Forward declarations.
class JSGraph;
class CommonOperatorBuilder;
class Node;
class ControlReducer {
public:
// Perform branch folding and dead code elimination on the graph.
static void ReduceGraph(Zone* zone, JSGraph* graph,
int max_phis_for_select = 0);
// Trim nodes in the graph that are not reachable from end.
static void TrimGraph(Zone* zone, JSGraph* graph);
// Reduces a single merge node and attached phis.
static Node* ReduceMerge(JSGraph* graph, Node* node,
int max_phis_for_select = 0);
// Testing interface.
static Node* ReducePhiForTesting(JSGraph* graph, Node* node);
static Node* ReduceIfNodeForTesting(JSGraph* graph, Node* node);
};
}
}
} // namespace v8::internal::compiler
#endif // V8_COMPILER_CONTROL_REDUCER_H_
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