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/*
* Copyright (C) 2006, 2007, 2008, 2009, 2013 Apple Inc. All rights reserved.
* Copyright (C) 2007-2009 Torch Mobile, Inc.
* Copyright (C) 2010, 2011 Research In Motion Limited. All rights reserved.
* Copyright (C) 2013 Samsung Electronics. 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 COMPUTER, 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 COMPUTER, 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.
*/
#ifndef WTF_CPU_h
#define WTF_CPU_h
#include "wtf/Compiler.h"
/* CPU() - the target CPU architecture */
#define CPU(WTF_FEATURE) (defined WTF_CPU_##WTF_FEATURE && WTF_CPU_##WTF_FEATURE)
/* ==== CPU() - the target CPU architecture ==== */
/* This defines CPU(BIG_ENDIAN) or nothing, as appropriate. */
/* This defines CPU(32BIT) or CPU(64BIT), as appropriate. */
/* CPU(X86) - i386 / x86 32-bit */
#if defined(__i386__) \
|| defined(i386) \
|| defined(_M_IX86) \
|| defined(_X86_) \
|| defined(__THW_INTEL)
#define WTF_CPU_X86 1
#endif
/* CPU(X86_64) - AMD64 / Intel64 / x86_64 64-bit */
#if defined(__x86_64__) \
|| defined(_M_X64)
#define WTF_CPU_X86_64 1
#define WTF_CPU_64BIT 1
#endif
/* CPU(ARM) - ARM, any version*/
#define WTF_ARM_ARCH_AT_LEAST(N) (CPU(ARM) && defined(WTF_ARM_ARCH_VERSION) && WTF_ARM_ARCH_VERSION >= N)
#if defined(arm) \
|| defined(__arm__) \
|| defined(ARM) \
|| defined(_ARM_)
#define WTF_CPU_ARM 1
#if defined(__ARMEB__)
#define WTF_CPU_BIG_ENDIAN 1
#elif !defined(__ARM_EABI__) \
&& !defined(__EABI__) \
&& !defined(__VFP_FP__) \
&& !defined(_WIN32_WCE) \
&& !defined(ANDROID)
#define WTF_CPU_MIDDLE_ENDIAN 1
#endif
/* Set WTF_ARM_ARCH_VERSION */
#if defined(__ARM_ARCH_4__) \
|| defined(__ARM_ARCH_4T__) \
|| defined(__MARM_ARMV4__)
#define WTF_ARM_ARCH_VERSION 4
#elif defined(__ARM_ARCH_5__) \
|| defined(__ARM_ARCH_5T__) \
|| defined(__MARM_ARMV5__)
#define WTF_ARM_ARCH_VERSION 5
#elif defined(__ARM_ARCH_5E__) \
|| defined(__ARM_ARCH_5TE__) \
|| defined(__ARM_ARCH_5TEJ__)
#define WTF_ARM_ARCH_VERSION 5
#elif defined(__ARM_ARCH_6__) \
|| defined(__ARM_ARCH_6J__) \
|| defined(__ARM_ARCH_6K__) \
|| defined(__ARM_ARCH_6Z__) \
|| defined(__ARM_ARCH_6ZK__) \
|| defined(__ARM_ARCH_6T2__) \
|| defined(__ARMV6__)
#define WTF_ARM_ARCH_VERSION 6
#elif defined(__ARM_ARCH_7A__) \
|| defined(__ARM_ARCH_7R__) \
|| defined(__ARM_ARCH_7S__)
#define WTF_ARM_ARCH_VERSION 7
/* MSVC sets _M_ARM */
#elif defined(_M_ARM)
#define WTF_ARM_ARCH_VERSION _M_ARM
#else
#define WTF_ARM_ARCH_VERSION 0
#endif
/* Set WTF_THUMB_ARCH_VERSION */
#if defined(__ARM_ARCH_4T__)
#define WTF_THUMB_ARCH_VERSION 1
#elif defined(__ARM_ARCH_5T__) \
|| defined(__ARM_ARCH_5TE__) \
|| defined(__ARM_ARCH_5TEJ__)
#define WTF_THUMB_ARCH_VERSION 2
#elif defined(__ARM_ARCH_6J__) \
|| defined(__ARM_ARCH_6K__) \
|| defined(__ARM_ARCH_6Z__) \
|| defined(__ARM_ARCH_6ZK__) \
|| defined(__ARM_ARCH_6M__)
#define WTF_THUMB_ARCH_VERSION 3
#elif defined(__ARM_ARCH_6T2__) \
|| defined(__ARM_ARCH_7__) \
|| defined(__ARM_ARCH_7A__) \
|| defined(__ARM_ARCH_7M__) \
|| defined(__ARM_ARCH_7R__) \
|| defined(__ARM_ARCH_7S__)
#define WTF_THUMB_ARCH_VERSION 4
#else
#define WTF_THUMB_ARCH_VERSION 0
#endif
/* CPU(ARM_THUMB2) - Thumb2 instruction set is available */
#if !defined(WTF_CPU_ARM_THUMB2)
# if defined(thumb2) || defined(__thumb2__) \
|| ((defined(__thumb) || defined(__thumb__)) && WTF_THUMB_ARCH_VERSION == 4)
# define WTF_CPU_ARM_THUMB2 1
# elif WTF_ARM_ARCH_AT_LEAST(4)
# define WTF_CPU_ARM_THUMB2 0
# else
# error "Unsupported ARM architecture"
# endif
#endif /* !defined(WTF_CPU_ARM_THUMB2) */
#if defined(__ARM_NEON__) && !defined(WTF_CPU_ARM_NEON)
#define WTF_CPU_ARM_NEON 1
#endif
#if CPU(ARM_NEON) && (!COMPILER(GCC) || GCC_VERSION_AT_LEAST(4, 7, 0))
// All NEON intrinsics usage can be disabled by this macro.
#define HAVE_ARM_NEON_INTRINSICS 1
#endif
#if defined(__ARM_ARCH_7S__)
#define WTF_CPU_APPLE_ARMV7S 1
#endif
#endif /* ARM */
/* CPU(ARM64) - AArch64 64-bit */
#if defined(__aarch64__)
#define WTF_CPU_ARM64 1
#define WTF_CPU_64BIT 1
#endif
/* This defines CPU(64BIT). */
#if defined(__mips__) && (_MIPS_SIM == _ABI64)
#define WTF_CPU_64BIT 1
#endif
#if !defined(WTF_CPU_64BIT)
#define WTF_CPU_32BIT 1
#endif
#endif /* WTF_CPU_h */
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