#ifndef LLVM_SUPPORT_COMPILER_H
#define LLVM_SUPPORT_COMPILER_H
#if (__GNUC__ >= 4) && !defined(__MINGW32__) && !defined(__CYGWIN__)
#define VISIBILITY_HIDDEN __attribute__ ((visibility("hidden")))
#else
#define VISIBILITY_HIDDEN
#endif
#if (__GNUC__ >= 4 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 1))
#define ATTRIBUTE_USED __attribute__((__used__))
#else
#define ATTRIBUTE_USED
#endif
#if (__GNUC__ >= 4 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 1))
#define ATTRIBUTE_UNUSED __attribute__((__unused__))
#else
#define ATTRIBUTE_UNUSED
#endif
#ifdef __GNUC__ // aka 'ATTRIBUTE_CONST' but following LLVM Conventions.
#define ATTRIBUTE_READNONE __attribute__((__const__))
#else
#define ATTRIBUTE_READNONE
#endif
#ifdef __GNUC__ // aka 'ATTRIBUTE_PURE' but following LLVM Conventions.
#define ATTRIBUTE_READONLY __attribute__((__pure__))
#else
#define ATTRIBUTE_READONLY
#endif
#if (__GNUC__ >= 4)
#define BUILTIN_EXPECT(EXPR, VALUE) __builtin_expect((EXPR), (VALUE))
#else
#define BUILTIN_EXPECT(EXPR, VALUE) (EXPR)
#endif
#ifdef __GNUC__
#define EXTERN_TEMPLATE_INSTANTIATION(X) __extension__ extern template X
#define TEMPLATE_INSTANTIATION(X) template X
#else
#define EXTERN_TEMPLATE_INSTANTIATION(X)
#define TEMPLATE_INSTANTIATION(X)
#endif
#if (__GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 4))
#define DISABLE_INLINE __attribute__((noinline))
#elif defined(_MSC_VER)
#define DISABLE_INLINE __declspec(noinline)
#else
#define DISABLE_INLINE
#endif
#if __GNUC__ > 3
#define ALWAYS_INLINE __attribute__((always_inline))
#else
#define ALWAYS_INLINE
#endif
#ifdef __GNUC__
#define NORETURN __attribute__((noreturn))
#elif defined(_MSC_VER)
#define NORETURN __declspec(noreturn)
#else
#define NORETURN
#endif
#endif