mirror of
https://github.com/darlinghq/darling-JavaScriptCore.git
synced 2025-04-05 00:11:39 +00:00
155 lines
3.4 KiB
C++
155 lines
3.4 KiB
C++
/*
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* Copyright (C) 2008-2020 Apple Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#pragma once
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#include "Options.h"
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#include <wtf/NumberOfCores.h>
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#include <wtf/StdIntExtras.h>
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namespace JSC {
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using UCPUStrictInt32 = UCPURegister;
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constexpr bool isARMv7IDIVSupported()
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{
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#if HAVE(ARM_IDIV_INSTRUCTIONS)
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return true;
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#else
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return false;
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#endif
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}
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constexpr bool isARM64()
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{
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#if CPU(ARM64)
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return true;
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#else
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return false;
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#endif
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}
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constexpr bool isARM64E()
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{
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#if CPU(ARM64E)
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return true;
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#else
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return false;
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#endif
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}
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constexpr bool isX86()
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{
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#if CPU(X86_64) || CPU(X86)
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return true;
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#else
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return false;
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#endif
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}
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constexpr bool isX86_64()
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{
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#if CPU(X86_64)
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return true;
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#else
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return false;
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#endif
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}
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constexpr bool is64Bit()
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{
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#if USE(JSVALUE64)
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return true;
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#else
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return false;
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#endif
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}
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constexpr bool is32Bit()
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{
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return !is64Bit();
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}
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constexpr bool isAddress64Bit()
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{
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return sizeof(void*) == 8;
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}
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constexpr bool isAddress32Bit()
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{
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return !isAddress64Bit();
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}
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constexpr bool isMIPS()
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{
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#if CPU(MIPS)
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return true;
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#else
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return false;
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#endif
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}
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inline bool optimizeForARMv7IDIVSupported()
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{
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return isARMv7IDIVSupported() && Options::useArchitectureSpecificOptimizations();
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}
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inline bool optimizeForARM64()
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{
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return isARM64() && Options::useArchitectureSpecificOptimizations();
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}
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inline bool optimizeForX86()
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{
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return isX86() && Options::useArchitectureSpecificOptimizations();
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}
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inline bool optimizeForX86_64()
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{
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return isX86_64() && Options::useArchitectureSpecificOptimizations();
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}
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inline bool hasSensibleDoubleToInt()
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{
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return optimizeForX86();
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}
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#if (CPU(X86) || CPU(X86_64)) && OS(DARWIN)
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bool isKernTCSMAvailable();
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bool enableKernTCSM();
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int kernTCSMAwareNumberOfProcessorCores();
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int64_t hwL3CacheSize();
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int32_t hwPhysicalCPUMax();
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#else
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ALWAYS_INLINE bool isKernTCSMAvailable() { return false; }
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ALWAYS_INLINE bool enableKernTCSM() { return false; }
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ALWAYS_INLINE int kernTCSMAwareNumberOfProcessorCores() { return WTF::numberOfProcessorCores(); }
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ALWAYS_INLINE int64_t hwL3CacheSize() { return 0; }
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ALWAYS_INLINE int32_t hwPhysicalCPUMax() { return kernTCSMAwareNumberOfProcessorCores(); }
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#endif
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} // namespace JSC
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