[Bug tree-optimization/122793] [13/14 Regression] ffmpeg miscompiled with -O2 -march=x86-64-v2 since r15-4114-g8157f3f2d211bf

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=122793

Richard Biener <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
      Known to work|                            |15.2.1
   Target Milestone|15.3                        |13.5
            Summary|[15 regression] ffmpeg      |[13/14 Regression] ffmpeg
                   |miscompiled with -O2        |miscompiled with -O2
                   |-march=x86-64-v2 since      |-march=x86-64-v2 since
                   |r15-4114-g8157f3f2d211bf    |r15-4114-g8157f3f2d211bf

--- Comment #19 from Richard Biener <rguenth at gcc dot gnu.org> ---
The code is present also on the 14 and 13 branches, so queued for further
backporting after a bit more investigation whether it can be triggered there.