https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117031
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |rguenth at gcc dot gnu.org
--- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> ---
(In reply to Tamar Christina from comment #0)
> GCC seems to miss that there is no gap between the group accesses and that
> stride == 1.
> test3 is vectorized linearly by GCC, so it seems this is missed optimization
> in data ref analysis?
The load-lanes look fine, so it must be the code generation for the
HI to DI via SI conversions using unpacks you are complaining about?
Using load-lanes is natural here.
This isn't about permutes due to VF or so, isn't it?
