diff options
Diffstat (limited to 'include/llvm/Support/Compiler.h')
| -rw-r--r-- | include/llvm/Support/Compiler.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/include/llvm/Support/Compiler.h b/include/llvm/Support/Compiler.h index 7186b22a40..90292df381 100644 --- a/include/llvm/Support/Compiler.h +++ b/include/llvm/Support/Compiler.h @@ -29,6 +29,12 @@ #define ATTRIBUTE_USED #endif +#if (__GNUC__ >= 4) +#define BUILTIN_EXPECT(EXPR, VALUE) __builtin_expect((EXPR), (VALUE)) +#else +#define BUILTIN_EXPECT(EXPR, VALUE) (EXPR) +#endif + // C++ doesn't support 'extern template' of template specializations. GCC does, // but requires __extension__ before it. In the header, use this: // EXTERN_TEMPLATE_INSTANTIATION(class foo<bar>); |