chromium/v8/src/compiler/schedule.h

// 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.

#ifndef V8_COMPILER_SCHEDULE_H_
#define V8_COMPILER_SCHEDULE_H_

#include <iosfwd>

#include "src/base/compiler-specific.h"
#include "src/common/globals.h"
#include "src/zone/zone-containers.h"

namespace v8 {
namespace internal {
namespace compiler {

// Forward declarations.
class BasicBlock;
class BasicBlockInstrumentor;
class Node;

BasicBlockVector;
NodeVector;

// A basic block contains an ordered list of nodes and ends with a control
// node. Note that if a basic block has phis, then all phis must appear as the
// first nodes in the block.
class V8_EXPORT_PRIVATE BasicBlock final
    : public NON_EXPORTED_BASE(ZoneObject) { … };

std::ostream& operator<<(std::ostream&, const BasicBlock&);
std::ostream& operator<<(std::ostream&, const BasicBlock::Control&);
std::ostream& operator<<(std::ostream&, const BasicBlock::Id&);

// A schedule represents the result of assigning nodes to basic blocks
// and ordering them within basic blocks. Prior to computing a schedule,
// a graph has no notion of control flow ordering other than that induced
// by the graph's dependencies. A schedule is required to generate code.
class V8_EXPORT_PRIVATE Schedule final : public NON_EXPORTED_BASE(ZoneObject) { … };

V8_EXPORT_PRIVATE std::ostream& operator<<(std::ostream&, const Schedule&);

}  // namespace compiler
}  // namespace internal
}  // namespace v8

#endif  // V8_COMPILER_SCHEDULE_H_