Move CPU() macro to it's own header from wtf/Platform.h

Source/wtf/CPU.h

+/*
+ * 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 also defines CPU(BIG_ENDIAN) or CPU(MIDDLE_ENDIAN) or neither, as appropriate. */
+
+/* CPU(ALPHA) - DEC Alpha */
+#if defined(__alpha__)
+#define WTF_CPU_ALPHA 1
+#endif
+
+/* CPU(IA64) - Itanium / IA-64 */
+#if defined(__ia64__)
+#define WTF_CPU_IA64 1
+#endif
+
+/* CPU(MIPS) - MIPS 32-bit */
+/* Note: Only O32 ABI is tested, so we enable it for O32 ABI for now.  */
+#if (defined(mips) || defined(__mips__) || defined(MIPS) || defined(_MIPS_)) \
+    && defined(_ABIO32)
+#define WTF_CPU_MIPS 1
+#if defined(__MIPSEB__)
+#define WTF_CPU_BIG_ENDIAN 1
+#endif
+/* MIPS requires allocators to use aligned memory */
+#define WTF_USE_ARENA_ALLOC_ALIGNMENT_INTEGER 1
+#endif /* MIPS */
+
+/* CPU(PPC) - PowerPC 32-bit */
+#if   defined(__ppc__)     \
+    || defined(__PPC__)     \
+    || defined(__powerpc__) \
+    || defined(__powerpc)   \
+    || defined(__POWERPC__) \
+    || defined(_M_PPC)      \
+    || defined(__PPC)
+#define WTF_CPU_PPC 1
+#define WTF_CPU_BIG_ENDIAN 1
+#endif
+
+/* CPU(PPC64) - PowerPC 64-bit */
+#if   defined(__ppc64__) \
+    || defined(__PPC64__)
+#define WTF_CPU_PPC64 1
+#define WTF_CPU_BIG_ENDIAN 1
+#endif
+
+/* CPU(SH4) - SuperH SH-4 */
+#if defined(__SH4__)
+#define WTF_CPU_SH4 1
+#endif
+
+/* CPU(SPARC32) - SPARC 32-bit */
+#if defined(__sparc) && !defined(__arch64__) || defined(__sparcv8)
+#define WTF_CPU_SPARC32 1
+#define WTF_CPU_BIG_ENDIAN 1
+#endif
+
+/* CPU(SPARC64) - SPARC 64-bit */
+#if defined(__sparc__) && defined(__arch64__) || defined (__sparcv9)
+#define WTF_CPU_SPARC64 1
+#define WTF_CPU_BIG_ENDIAN 1
+#endif
+
+/* CPU(SPARC) - any SPARC, true for CPU(SPARC32) and CPU(SPARC64) */
+#if CPU(SPARC32) || CPU(SPARC64)
+#define WTF_CPU_SPARC 1
+#endif
+
+/* CPU(S390X) - S390 64-bit */
+#if defined(__s390x__)
+#define WTF_CPU_S390X 1
+#define WTF_CPU_BIG_ENDIAN 1
+#endif
+
+/* CPU(S390) - S390 32-bit */
+#if defined(__s390__)
+#define WTF_CPU_S390 1
+#define WTF_CPU_BIG_ENDIAN 1
+#endif
+
+/* 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
+#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
+/*ARMv5TE requires allocators to use aligned memory*/
+#define WTF_USE_ARENA_ALLOC_ALIGNMENT_INTEGER 1
+
+#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_TRADITIONAL) - Thumb2 is not available, only traditional ARM (v4 or greater) */
+/* CPU(ARM_THUMB2) - Thumb2 instruction set is available */
+/* Only one of these will be defined. */
+#if !defined(WTF_CPU_ARM_TRADITIONAL) && !defined(WTF_CPU_ARM_THUMB2)
+#  if defined(thumb2) || defined(__thumb2__) \
+    || ((defined(__thumb) || defined(__thumb__)) && WTF_THUMB_ARCH_VERSION == 4)
+#    define WTF_CPU_ARM_TRADITIONAL 0
+#    define WTF_CPU_ARM_THUMB2 1
+#  elif WTF_ARM_ARCH_AT_LEAST(4)
+#    define WTF_CPU_ARM_TRADITIONAL 1
+#    define WTF_CPU_ARM_THUMB2 0
+#  else
+#    error "Not supported ARM architecture"
+#  endif
+#elif CPU(ARM_TRADITIONAL) && CPU(ARM_THUMB2) /* Sanity Check */
+#  error "Cannot use both of WTF_CPU_ARM_TRADITIONAL and WTF_CPU_ARM_THUMB2 platforms"
+#endif /* !defined(WTF_CPU_ARM_TRADITIONAL) && !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 */
+
+#endif /* WTF_CPU_h */