diff options
| -rw-r--r-- | libcpp/lex.c | 2 | ||||
| -rw-r--r-- | libcpp/system.h | 10 |
2 files changed, 11 insertions, 1 deletions
diff --git a/libcpp/lex.c b/libcpp/lex.c index 94c36f0..9c27d8b 100644 --- a/libcpp/lex.c +++ b/libcpp/lex.c @@ -1286,7 +1286,7 @@ namespace bidi { case kind::RTL: /* These aren't popped by a PDF/PDI. */ break; - [[likely]] case kind::NONE: + ATTR_LIKELY case kind::NONE: break; default: abort (); diff --git a/libcpp/system.h b/libcpp/system.h index ee5fbe2..f6fc583 100644 --- a/libcpp/system.h +++ b/libcpp/system.h @@ -422,6 +422,16 @@ extern void fancy_abort (const char *, int, const char *) ATTRIBUTE_NORETURN; #define gcc_checking_assert(EXPR) ((void)(0 && (EXPR))) #endif +#ifdef __has_cpp_attribute +# if __has_cpp_attribute(likely) +# define ATTR_LIKELY [[likely]] +# elif __has_cpp_attribute(__likely__) +# define ATTR_LIKELY [[__likely__]] +# else +# define ATTR_LIKELY +# endif +#endif + /* Poison identifiers we do not want to use. */ #if (GCC_VERSION >= 3000) #undef calloc |