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 feac9348dd..c32a48546c 100644 --- a/include/llvm/Support/Compiler.h +++ b/include/llvm/Support/Compiler.h @@ -179,6 +179,12 @@ #define LLVM_ATTRIBUTE_USED #endif +#if __has_attribute(warn_unused_result) || __GNUC_PREREQ(3, 4) +#define LLVM_ATTRIBUTE_UNUSED_RESULT __attribute__((__warn_unused_result__)) +#else +#define LLVM_ATTRIBUTE_UNUSED_RESULT +#endif + // Some compilers warn about unused functions. When a function is sometimes // used or not depending on build settings (e.g. a function only called from // within "assert"), this attribute can be used to suppress such warnings. |