https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106770
Segher Boessenkool <segher at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Target|powerpc |powerpc64le
Last reconfirmed| |2023-02-28
Ever confirmed|0 |1
--- Comment #7 from Segher Boessenkool <segher at gcc dot gnu.org> ---
The mystery is not where the permutations came from: they were added during
expand to make correct code, just like many unnecessary register moves are
added at that time. This is normal, and even good in many ways.
The question is why they weren't optimised better. This is either due to
some bug, or this is an enhancement request.
