https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106346
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Blocks| |53947
Keywords| |needs-bisection
Component|tree-optimization |target
--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
We no longer seem to handle the widening subtract but instead build up vectors
from scalar widened src1/src2.
"fails" with 10.4 on x86_64, works with 11.3, 12.1 and trunk there (but needs
AVX2).
Referenced Bugs:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=53947
[Bug 53947] [meta-bug] vectorizer missed-optimizations
