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/*
* Copyright (C) 2008-2020 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#pragma once
#include "Options.h"
#include <wtf/NumberOfCores.h>
#include <wtf/StdIntExtras.h>
namespace JSC {
using UCPUStrictInt32 = UCPURegister;
constexpr bool isARMv7IDIVSupported()
{
#if HAVE(ARM_IDIV_INSTRUCTIONS)
return true;
#else
return false;
#endif
}
constexpr bool isARM64()
{
#if CPU(ARM64)
return true;
#else
return false;
#endif
}
constexpr bool isARM64E()
{
#if CPU(ARM64E)
return true;
#else
return false;
#endif
}
constexpr bool isX86()
{
#if CPU(X86_64) || CPU(X86)
return true;
#else
return false;
#endif
}
constexpr bool isX86_64()
{
#if CPU(X86_64)
return true;
#else
return false;
#endif
}
constexpr bool isMIPS()
{
#if CPU(MIPS)
return true;
#else
return false;
#endif
}
constexpr bool isRISCV64()
{
#if CPU(RISCV64)
return true;
#else
return false;
#endif
}
constexpr bool is64Bit()
{
#if USE(JSVALUE64)
return true;
#else
return false;
#endif
}
constexpr bool is32Bit()
{
return !is64Bit();
}
constexpr bool isAddress64Bit()
{
return sizeof(void*) == 8;
}
constexpr bool isAddress32Bit()
{
return !isAddress64Bit();
}
inline bool optimizeForARMv7IDIVSupported()
{
return isARMv7IDIVSupported() && Options::useArchitectureSpecificOptimizations();
}
inline bool optimizeForARM64()
{
return isARM64() && Options::useArchitectureSpecificOptimizations();
}
inline bool optimizeForX86()
{
return isX86() && Options::useArchitectureSpecificOptimizations();
}
inline bool optimizeForX86_64()
{
return isX86_64() && Options::useArchitectureSpecificOptimizations();
}
inline bool hasSensibleDoubleToInt()
{
return optimizeForX86();
}
#if (CPU(X86) || CPU(X86_64)) && OS(DARWIN)
bool isKernTCSMAvailable();
bool enableKernTCSM();
int kernTCSMAwareNumberOfProcessorCores();
int64_t hwL3CacheSize();
int32_t hwPhysicalCPUMax();
#else
ALWAYS_INLINE bool isKernTCSMAvailable() { return false; }
ALWAYS_INLINE bool enableKernTCSM() { return false; }
ALWAYS_INLINE int kernTCSMAwareNumberOfProcessorCores() { return WTF::numberOfProcessorCores(); }
ALWAYS_INLINE int64_t hwL3CacheSize() { return 0; }
ALWAYS_INLINE int32_t hwPhysicalCPUMax() { return kernTCSMAwareNumberOfProcessorCores(); }
#endif
} // namespace JSC
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