[Bug tree-optimization/121256] [13/14/15/16 regression] ffmpeg miscompiled with -O2 -march=znver2 since r13-3327-g46a8e017d048ec

[sjames at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=121256

Sam James <sjames at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|needs-bisection             |
            Summary|[13/14/15/16 regression]    |[13/14/15/16 regression]
                   |ffmpeg miscompiled with -O2 |ffmpeg miscompiled with -O2
                   |-march=znver2               |-march=znver2 since
                   |                            |r13-3327-g46a8e017d048ec

--- Comment #6 from Sam James <sjames at gcc dot gnu.org> ---
(In reply to Richard Biener from comment #3)
> Probably caused by the first order recurrence vectorization addition.

Indeed r13-3327-g46a8e017d048ec.