diff options
Diffstat (limited to 'libgfortran/libgfortran.h')
| -rw-r--r-- | libgfortran/libgfortran.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/libgfortran/libgfortran.h b/libgfortran/libgfortran.h index cfe04760fe5..cfa4fcf0edc 100644 --- a/libgfortran/libgfortran.h +++ b/libgfortran/libgfortran.h @@ -111,6 +111,11 @@ typedef off_t gfc_offset; #define likely(x) __builtin_expect(!!(x), 1) #define unlikely(x) __builtin_expect(!!(x), 0) +/* This macro can be used to annotate conditions which we know to + be true, so that the compiler can optimize based on the condition. */ + +#define GFC_ASSERT(EXPR) \ + ((void)(__builtin_expect (!(EXPR), 0) ? __builtin_unreachable (), 0 : 0)) /* Make sure we have ptrdiff_t. */ #ifndef HAVE_PTRDIFF_T |