77 lines
2.2 KiB
C++
77 lines
2.2 KiB
C++
/*
|
|
* Copyright (C) 2013 The Android Open Source Project
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
|
|
#ifndef ART_COMPILER_UTILS_ARENA_BIT_VECTOR_H_
|
|
#define ART_COMPILER_UTILS_ARENA_BIT_VECTOR_H_
|
|
|
|
#include "base/bit_vector.h"
|
|
#include "utils/arena_allocator.h"
|
|
#include "utils/scoped_arena_allocator.h"
|
|
|
|
namespace art {
|
|
|
|
// Type of growable bitmap for memory tuning.
|
|
enum OatBitMapKind {
|
|
kBitMapMisc = 0,
|
|
kBitMapUse,
|
|
kBitMapDef,
|
|
kBitMapLiveIn,
|
|
kBitMapBMatrix,
|
|
kBitMapDominators,
|
|
kBitMapIDominated,
|
|
kBitMapDomFrontier,
|
|
kBitMapPhi,
|
|
kBitMapTmpBlocks,
|
|
kBitMapInputBlocks,
|
|
kBitMapRegisterV,
|
|
kBitMapTempSSARegisterV,
|
|
kBitMapNullCheck,
|
|
kBitMapClInitCheck,
|
|
kBitMapTmpBlockV,
|
|
kBitMapPredecessors,
|
|
kNumBitMapKinds
|
|
};
|
|
|
|
std::ostream& operator<<(std::ostream& os, const OatBitMapKind& kind);
|
|
|
|
/*
|
|
* A BitVector implementation that uses Arena allocation.
|
|
*/
|
|
class ArenaBitVector : public BitVector {
|
|
public:
|
|
ArenaBitVector(ArenaAllocator* arena, uint32_t start_bits, bool expandable,
|
|
OatBitMapKind kind = kBitMapMisc);
|
|
ArenaBitVector(ScopedArenaAllocator* arena, uint32_t start_bits, bool expandable,
|
|
OatBitMapKind kind = kBitMapMisc);
|
|
~ArenaBitVector() {}
|
|
|
|
static void* operator new(size_t size, ArenaAllocator* arena) {
|
|
return arena->Alloc(sizeof(ArenaBitVector), kArenaAllocGrowableBitMap);
|
|
}
|
|
static void* operator new(size_t size, ScopedArenaAllocator* arena) {
|
|
return arena->Alloc(sizeof(ArenaBitVector), kArenaAllocGrowableBitMap);
|
|
}
|
|
static void operator delete(void* p) {} // Nop.
|
|
|
|
private:
|
|
const OatBitMapKind kind_; // for memory use tuning. TODO: currently unused.
|
|
};
|
|
|
|
|
|
} // namespace art
|
|
|
|
#endif // ART_COMPILER_UTILS_ARENA_BIT_VECTOR_H_
|