diff options
Diffstat (limited to 'compiler/optimizing/nodes_mips.h')
-rw-r--r-- | compiler/optimizing/nodes_mips.h | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/compiler/optimizing/nodes_mips.h b/compiler/optimizing/nodes_mips.h new file mode 100644 index 0000000000..de77245e17 --- /dev/null +++ b/compiler/optimizing/nodes_mips.h @@ -0,0 +1,71 @@ +/* + * 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_ |