https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81706
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |missed-optimization
Status|UNCONFIRMED |NEW
Last reconfirmed| |2017-08-04
CC| |jakub at gcc dot gnu.org,
| |rguenth at gcc dot gnu.org
Component|c++ |libstdc++
Version|unknown |7.1.1
Ever confirmed|0 |1
--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
The C library sin is vectorized by being appropriately annotated with OpenMP
SIMD attributes. This isn't the case for the libstdc++ variant which ends up
calling
__builtin_sinf:
using ::sin;
inline float
sin(float __x)
{ return __builtin_sinf(__x); }
why the using ::sin and then still dispatching to the builtin?
