[Bug tree-optimization/106020] [12/13/14/15 regression] Spurious warnings about stringop overflows with -march=skylake -O3

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106020
Sam James <sjames at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|Spurious warnings about     |[12/13/14/15 regression]
                   |stringop overflows with     |Spurious warnings about
                   |-march=skylake -O3          |stringop overflows with
                   |                            |-march=skylake -O3
   Target Milestone|---                         |12.5
   Last reconfirmed|2023-05-18 00:00:00         |2024-10-24
      Known to fail|                            |12.4.1, 13.3.1, 14.2.1,
                   |                            |15.0

--- Comment #14 from Sam James <sjames at gcc dot gnu.org> ---
Confirmed on trunk. pinskia's testcase also works with < GCC 12.