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Diffstat (limited to 'runtime/arch/code_offset.h')
-rw-r--r-- | runtime/arch/code_offset.h | 94 |
1 files changed, 0 insertions, 94 deletions
diff --git a/runtime/arch/code_offset.h b/runtime/arch/code_offset.h deleted file mode 100644 index f0c6d22ef2..0000000000 --- a/runtime/arch/code_offset.h +++ /dev/null @@ -1,94 +0,0 @@ -/* - * Copyright (C) 2017 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_RUNTIME_ARCH_CODE_OFFSET_H_ -#define ART_RUNTIME_ARCH_CODE_OFFSET_H_ - -#include <iosfwd> - -#include <android-base/logging.h> - -#include "arch/instruction_set.h" -#include "base/bit_utils.h" -#include "base/macros.h" - -namespace art { - -// CodeOffset is a holder for compressed code offsets. Since some architectures have alignment -// requirements it is possible to compress code offsets to reduce stack map sizes. -class CodeOffset { - public: - ALWAYS_INLINE static CodeOffset FromOffset(uint32_t offset, InstructionSet isa = kRuntimeISA) { - return CodeOffset(offset / GetInstructionSetInstructionAlignment(isa)); - } - - ALWAYS_INLINE static CodeOffset FromCompressedOffset(uint32_t offset) { - return CodeOffset(offset); - } - - ALWAYS_INLINE uint32_t Uint32Value(InstructionSet isa = kRuntimeISA) const { - uint32_t decoded = value_ * GetInstructionSetInstructionAlignment(isa); - DCHECK_GE(decoded, value_) << "Integer overflow"; - return decoded; - } - - // Return compressed internal value. - ALWAYS_INLINE uint32_t CompressedValue() const { - return value_; - } - - ALWAYS_INLINE CodeOffset() = default; - ALWAYS_INLINE CodeOffset(const CodeOffset&) = default; - ALWAYS_INLINE CodeOffset& operator=(const CodeOffset&) = default; - ALWAYS_INLINE CodeOffset& operator=(CodeOffset&&) = default; - - private: - ALWAYS_INLINE explicit CodeOffset(uint32_t value) : value_(value) {} - - uint32_t value_ = 0u; -}; - -inline bool operator==(const CodeOffset& a, const CodeOffset& b) { - return a.CompressedValue() == b.CompressedValue(); -} - -inline bool operator!=(const CodeOffset& a, const CodeOffset& b) { - return !(a == b); -} - -inline bool operator<(const CodeOffset& a, const CodeOffset& b) { - return a.CompressedValue() < b.CompressedValue(); -} - -inline bool operator<=(const CodeOffset& a, const CodeOffset& b) { - return a.CompressedValue() <= b.CompressedValue(); -} - -inline bool operator>(const CodeOffset& a, const CodeOffset& b) { - return a.CompressedValue() > b.CompressedValue(); -} - -inline bool operator>=(const CodeOffset& a, const CodeOffset& b) { - return a.CompressedValue() >= b.CompressedValue(); -} - -inline std::ostream& operator<<(std::ostream& os, const CodeOffset& offset) { - return os << offset.Uint32Value(); -} - -} // namespace art - -#endif // ART_RUNTIME_ARCH_CODE_OFFSET_H_ |