Move some compiler intrinsic #defines to base/.

third_party/WebKit/Source/wtf/Compiler.h

 /*
  * Copyright (C) 2011, 2012 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.
  */
 
 #ifndef WTF_Compiler_h
 #define WTF_Compiler_h
 
+#include "base/compiler_specific.h"
+
 /* COMPILER() - the compiler being used to build the project */
 #define COMPILER(WTF_FEATURE) \
   (defined WTF_COMPILER_##WTF_FEATURE && WTF_COMPILER_##WTF_FEATURE)
 
 /* ==== COMPILER() - the compiler being used to build the project ==== */
 
 /* COMPILER(CLANG) - Clang  */
 #if defined(__clang__)
 #define WTF_COMPILER_CLANG 1
 #endif
@@ skipping 13 matching lines @@
 #define GCC_VERSION_AT_LEAST(major, minor, patch) \
   (GCC_VERSION >= (major * 10000 + minor * 100 + patch))
 #else
 /* Define this for !GCC compilers, just so we can write things like
  * GCC_VERSION_AT_LEAST(4, 1, 0). */
 #define GCC_VERSION_AT_LEAST(major, minor, patch) 0
 #endif
 
 /* ==== Compiler features ==== */
 
-/* ALWAYS_INLINE */
-
-#ifndef ALWAYS_INLINE
-#if COMPILER(GCC) && defined(NDEBUG) && !COMPILER(MINGW)
-#define ALWAYS_INLINE inline __attribute__((__always_inline__))
-#elif COMPILER(MSVC) && defined(NDEBUG)
-#define ALWAYS_INLINE __forceinline
-#else
-#define ALWAYS_INLINE inline
-#endif
-#endif
-
-/* NEVER_INLINE */
-
-#ifndef NEVER_INLINE
-#if COMPILER(GCC)
-#define NEVER_INLINE __attribute__((__noinline__))
-#elif COMPILER(MSVC)
-#define NEVER_INLINE __declspec(noinline)
-#else
-#define NEVER_INLINE
-#endif
-#endif
-
-/* UNLIKELY */
-
-#ifndef UNLIKELY
-#if COMPILER(GCC)
-#define UNLIKELY(x) __builtin_expect((x), 0)
-#else
-#define UNLIKELY(x) (x)
-#endif
-#endif
-
-/* LIKELY */
-
-#ifndef LIKELY
-#if COMPILER(GCC)
-#define LIKELY(x) __builtin_expect((x), 1)
-#else
-#define LIKELY(x) (x)
-#endif
-#endif
-
 /* NO_RETURN */
 
 #ifndef NO_RETURN
 #if COMPILER(GCC)
 #define NO_RETURN __attribute((__noreturn__))
 #elif COMPILER(MSVC)
 #define NO_RETURN __declspec(noreturn)
 #else
 #define NO_RETURN
 #endif
 #endif
 
+/* NEVER_INLINE */
+
+// TODO(palmer): Remove this and update callers to use NOINLINE from Chromium
+// base. https://bugs.chromium.org/p/chromium/issues/detail?id=632441
+//
+// For compatibility with callers in Blink:
+#define NEVER_INLINE NOINLINE
+
 /* WARN_UNUSED_RETURN */
 
 #if COMPILER(GCC)
 #define WARN_UNUSED_RETURN __attribute__((warn_unused_result))
 #else
 #define WARN_UNUSED_RETURN
 #endif
 
 /* ALLOW_UNUSED_LOCAL */
 
@@ skipping 32 matching lines @@
 /* WTF_NON_EXPORTED_BASE; similar NON_EXPORTED_BASE in base/compiler_specific.h
  */
 
 #if COMPILER(MSVC)
 #define WTF_NON_EXPORTED_BASE(code) __pragma(warning(suppress : 4275)) code
 #else
 #define WTF_NON_EXPORTED_BASE(code) code
 #endif
 
 #endif /* WTF_Compiler_h */