99c0a73f91
d0488d932 oaknut: 2.0.0 40ad78bbf oaknut: Implement DualCodeBlock and related support 9f131cfb5 oaknut: add configuration for standalone installation 69799b43c oaknut: Test building for Android on CI 1d51f5512 oaknut: 1.2.2 918bd94f0 oaknut: Eliminate -Wconversion warnings 316d8869e oaknut: Fix edgecases in MOVP2R on +/-4GiB boundary d8634eaa1 oaknut: Fix page boundary error in ADP d0ca9a24e oaknut: Update README examples for CPU feature detection dbeec268b oaknut: feature_detection_freebsd: Warn about incompatibility with earlier FreeBSD versions 86e5386e2 oaknut: feature_detect: Support NetBSD df4cf2d48 oaknut: feature_detect: Support OpenBSD 99dfff25a oaknut: feature_detection: Read ID registers 319b3d2c9 oaknut: Add basic CPU feature detection 23e9ddb4c oaknut: CI: Don't run slow tests on OpenBSD 734f1bdb4 oaknut: CI: Use up-to-date qemu f462c9774 oaknut: CI: Build on OpenBSD 19cd42204 oaknut: code_block: Add NetBSD and OpenBSD support 18b86a3ec oaknut: SystemReg: Add more EL0 accessible registers 53c43bf0c oaknut/tests: Reduce iterations for MOVP2R cc37df19e oaknut: Test on FreeBSD a66b32d26 oaknut: Fix crossing sign boundary in PageOffset 206468d72 oaknut: CI: Add macos-arm64 build e6eecc3f9 oaknut: 1.2.1 4252d8f4a oaknut: CMakeLists: Warnings are errors on MSVC 408eed65f oaknut: arm64_encode_helpers: remove unreachable code bfc8eedfb oaknut: arm64_encode_helpers: p maybe unused ff4456eca oaknut: Avoid negation of unsigned values b4ac8fd6c oaknut: Fix MOV for applications of MOVN 0575cadc4 oaknut: Disable certain functionality where absolute addressing is not available 394a3c8f0 oaknut: Appease MSVC 011183670 oaknut: 1.2.0 e83c9f327 oaknut: Add VectorCodeGenerator 5eb122cc5 oaknut: Tidy up public header 45c5a7b25 oaknut: Fix clang-format errors 36243256f oaknut: Add `const` qualifier to `AddrOffset` ctor 4af500cb5 oaknut: Add `ptr` accessor to `Label` bccb06669 oaknut: CodeGenerator const correctness da0590a86 oaknut: github: Update package repositories git-subtree-dir: externals/oaknut git-subtree-split: d0488d9320ae673167dd9117223e3453d5ff102f
107 lines
3 KiB
C++
107 lines
3 KiB
C++
// SPDX-FileCopyrightText: Copyright (c) 2023 merryhime <https://mary.rs>
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// SPDX-License-Identifier: MIT
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#pragma once
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#include <bitset>
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#include <cstddef>
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#include <initializer_list>
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#if defined(__cpp_lib_constexpr_bitset) && __cpp_lib_constexpr_bitset >= 202207L
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# define OAKNUT_CPU_FEATURES_CONSTEXPR constexpr
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#else
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# define OAKNUT_CPU_FEATURES_CONSTEXPR
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#endif
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namespace oaknut {
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// NOTE: This file contains code that can be compiled on non-arm64 systems.
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// For run-time CPU feature detection, include feature_detection.hpp
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enum class CpuFeature {
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#define OAKNUT_CPU_FEATURE(name) name,
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#include "oaknut/impl/cpu_feature.inc.hpp"
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#undef OAKNUT_CPU_FEATURE
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};
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constexpr std::size_t cpu_feature_count = 0
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#define OAKNUT_CPU_FEATURE(name) +1
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#include "oaknut/impl/cpu_feature.inc.hpp"
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#undef OAKNUT_CPU_FEATURE
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;
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class CpuFeatures final {
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public:
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constexpr CpuFeatures() = default;
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OAKNUT_CPU_FEATURES_CONSTEXPR explicit CpuFeatures(std::initializer_list<CpuFeature> features)
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{
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for (CpuFeature f : features) {
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m_bitset.set(static_cast<std::size_t>(f));
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}
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}
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constexpr bool has(CpuFeature feature) const
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{
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if (static_cast<std::size_t>(feature) >= cpu_feature_count)
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return false;
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return m_bitset[static_cast<std::size_t>(feature)];
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}
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OAKNUT_CPU_FEATURES_CONSTEXPR CpuFeatures& operator&=(const CpuFeatures& other) noexcept
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{
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m_bitset &= other.m_bitset;
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return *this;
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}
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OAKNUT_CPU_FEATURES_CONSTEXPR CpuFeatures& operator|=(const CpuFeatures& other) noexcept
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{
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m_bitset |= other.m_bitset;
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return *this;
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}
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OAKNUT_CPU_FEATURES_CONSTEXPR CpuFeatures& operator^=(const CpuFeatures& other) noexcept
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{
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m_bitset ^= other.m_bitset;
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return *this;
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}
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OAKNUT_CPU_FEATURES_CONSTEXPR CpuFeatures operator~() const noexcept
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{
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CpuFeatures result;
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result.m_bitset = ~m_bitset;
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return result;
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}
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private:
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using bitset = std::bitset<cpu_feature_count>;
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friend OAKNUT_CPU_FEATURES_CONSTEXPR CpuFeatures operator&(const CpuFeatures& a, const CpuFeatures& b) noexcept;
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friend OAKNUT_CPU_FEATURES_CONSTEXPR CpuFeatures operator|(const CpuFeatures& a, const CpuFeatures& b) noexcept;
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friend OAKNUT_CPU_FEATURES_CONSTEXPR CpuFeatures operator^(const CpuFeatures& a, const CpuFeatures& b) noexcept;
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bitset m_bitset;
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};
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OAKNUT_CPU_FEATURES_CONSTEXPR CpuFeatures operator&(const CpuFeatures& a, const CpuFeatures& b) noexcept
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{
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CpuFeatures result;
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result.m_bitset = a.m_bitset & b.m_bitset;
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return result;
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}
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OAKNUT_CPU_FEATURES_CONSTEXPR CpuFeatures operator|(const CpuFeatures& a, const CpuFeatures& b) noexcept
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{
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CpuFeatures result;
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result.m_bitset = a.m_bitset | b.m_bitset;
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return result;
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}
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OAKNUT_CPU_FEATURES_CONSTEXPR CpuFeatures operator^(const CpuFeatures& a, const CpuFeatures& b) noexcept
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{
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CpuFeatures result;
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result.m_bitset = a.m_bitset ^ b.m_bitset;
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return result;
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}
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} // namespace oaknut
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