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/*
* Copyright (C) 2016 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_OPTIMIZING_NODES_MIPS_H_
#define ART_COMPILER_OPTIMIZING_NODES_MIPS_H_
namespace art {
// Compute the address of the method for MIPS Constant area support.
class HMipsComputeBaseMethodAddress : public HExpression<0> {
public:
// Treat the value as an int32_t, but it is really a 32 bit native pointer.
HMipsComputeBaseMethodAddress()
: HExpression(Primitive::kPrimInt, SideEffects::None(), kNoDexPc) {}
bool CanBeMoved() const OVERRIDE { return true; }
DECLARE_INSTRUCTION(MipsComputeBaseMethodAddress);
private:
DISALLOW_COPY_AND_ASSIGN(HMipsComputeBaseMethodAddress);
};
class HMipsDexCacheArraysBase : public HExpression<0> {
public:
explicit HMipsDexCacheArraysBase(const DexFile& dex_file)
: HExpression(Primitive::kPrimInt, SideEffects::None(), kNoDexPc),
dex_file_(&dex_file),
element_offset_(static_cast<size_t>(-1)) { }
bool CanBeMoved() const OVERRIDE { return true; }
void UpdateElementOffset(size_t element_offset) {
// We'll maximize the range of a single load instruction for dex cache array accesses
// by aligning offset -32768 with the offset of the first used element.
element_offset_ = std::min(element_offset_, element_offset);
}
const DexFile& GetDexFile() const {
return *dex_file_;
}
size_t GetElementOffset() const {
return element_offset_;
}
DECLARE_INSTRUCTION(MipsDexCacheArraysBase);
private:
const DexFile* dex_file_;
size_t element_offset_;
DISALLOW_COPY_AND_ASSIGN(HMipsDexCacheArraysBase);
};
} // namespace art
#endif // ART_COMPILER_OPTIMIZING_NODES_MIPS_H_
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