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| author | Thomas Koenig <tkoenig@gcc.gnu.org> | 2017-03-15 07:45:39 +0000 |
|---|---|---|
| committer | Thomas Koenig <tkoenig@gcc.gnu.org> | 2017-03-15 07:45:39 +0000 |
| commit | 20305b5047e1c6ce55f47d6f4d6fa93970f752ec (patch) | |
| tree | 9f77409bc00ee67483e0e197d2c38e60ff24e22a /libgfortran/libgfortran.h | |
| parent | 142b99a8888ddb6d67e74b63789983e804b5a732 (diff) | |
re PR libfortran/79956 (many new -Wmaybe-uninitialized warnings with bootstrap-O3)
2017-03-15 Thomas Koenig <tkoenig@gcc.gnu.org>
PR libfortran/79956
* libgfortran.h (GFC_ASSERT): New macro.
* m4/reshape.m4 (reshape_'rtype_ccode`): Use GFC_ASSERT
to specify that sdim > 0 and rdim > 0.
* intrinsic/reshape_generic.c (reshape_internal): Likweise.
* generated/reshape_c10.c: Regenerated.
* generated/reshape_c16.c: Regenerated.
* generated/reshape_c4.c: Regenerated.
* generated/reshape_c8.c: Regenerated.
* generated/reshape_i16.c: Regenerated.
* generated/reshape_i4.c: Regenerated.
* generated/reshape_i8.c: Regenerated.
* generated/reshape_r10.c: Regenerated.
* generated/reshape_r16.c: Regenerated.
* generated/reshape_r4.c: Regenerated.
* generated/reshape_r8.c: Regenerated.
From-SVN: r246153
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 |