diff options
Diffstat (limited to 'include/llvm/Support/Compiler.h')
| -rw-r--r-- | include/llvm/Support/Compiler.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/include/llvm/Support/Compiler.h b/include/llvm/Support/Compiler.h index cd2e4eb997..14b55c147f 100644 --- a/include/llvm/Support/Compiler.h +++ b/include/llvm/Support/Compiler.h @@ -62,11 +62,18 @@ #endif #if (__GNUC__ >= 4) +#define LLVM_ATTRIBUTE_WEAK __attribute__((__weak__)) +#else +#define LLVM_ATTRIBUTE_WEAK +#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>); |