diff options
Diffstat (limited to 'include/ruby/defines.h')
| -rw-r--r-- | include/ruby/defines.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/include/ruby/defines.h b/include/ruby/defines.h index fb80813f05..cbf5537790 100644 --- a/include/ruby/defines.h +++ b/include/ruby/defines.h @@ -89,6 +89,16 @@ extern "C" { #define RB_UNLIKELY(x) (x) #endif /* __GNUC__ >= 3 */ +/* + cold attribute for code layout improvements + RUBY_FUNC_ATTRIBUTE not used because MSVC does not like nested func macros + */ +#if defined(__clang__) || GCC_VERSION_SINCE(4, 3, 0) +#define COLDFUNC __attribute__((cold)) +#else +#define COLDFUNC +#endif + #ifdef __GNUC__ #if defined __MINGW_PRINTF_FORMAT #define PRINTF_ARGS(decl, string_index, first_to_check) \ |