https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109543
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |missed-optimization
Status|UNCONFIRMED |NEW
Last reconfirmed| |2023-04-18
CC| |jamborm at gcc dot gnu.org,
| |rguenth at gcc dot gnu.org
Ever confirmed|0 |1
--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
A safe mode would have to be an integer mode supporting bitwise copying.
Usually SRA is responsible for selecting "register-like" types for aggregates
but it might in this case stay away because of the union.
But it really looks like a classy example SRA should handle (for example
by splitting TYPE into four DImode integers - it wouldn't currently
chose vectors but of course it eventually could).
Can you adjust the testcase to use GCC generic vectors?
