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Contents
// Copyright 2015 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_LIVE_RANGE_SEPARATOR_H_
#define V8_LIVE_RANGE_SEPARATOR_H_
#include "src/zone/zone.h"
namespace v8 {
namespace internal {
class Zone;
namespace compiler {
class RegisterAllocationData;
// A register allocation pair of transformations: splinter and merge live ranges
class LiveRangeSeparator final : public ZoneObject {
public:
LiveRangeSeparator(RegisterAllocationData* data, Zone* zone)
: data_(data), zone_(zone) {}
void Splinter();
private:
RegisterAllocationData* data() const { return data_; }
Zone* zone() const { return zone_; }
RegisterAllocationData* const data_;
Zone* const zone_;
DISALLOW_COPY_AND_ASSIGN(LiveRangeSeparator);
};
class LiveRangeMerger final : public ZoneObject {
public:
LiveRangeMerger(RegisterAllocationData* data, Zone* zone)
: data_(data), zone_(zone) {}
void Merge();
private:
RegisterAllocationData* data() const { return data_; }
Zone* zone() const { return zone_; }
// Mark ranges spilled in deferred blocks, that also cover non-deferred code.
// We do nothing special for ranges fully contained in deferred blocks,
// because they would "spill in deferred blocks" anyway.
void MarkRangesSpilledInDeferredBlocks();
RegisterAllocationData* const data_;
Zone* const zone_;
DISALLOW_COPY_AND_ASSIGN(LiveRangeMerger);
};
} // namespace compiler
} // namespace internal
} // namespace v8
#endif // V8_LIVE_RANGE_SEPARATOR_H_
Version data entries
5 entries across 5 versions & 1 rubygems