[Bug tree-optimization/121776] New: [13/14/15 Regression] memcmp expansion in strlen uses the wrong alignment

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=121776

            Bug ID: 121776
           Summary: [13/14/15 Regression] memcmp expansion in strlen uses
                    the wrong alignment
           Product: gcc
           Version: 16.0
            Status: UNCONFIRMED
          Keywords: wrong-code
          Severity: normal
          Priority: P3
         Component: tree-optimization
          Assignee: unassigned at gcc dot gnu.org
          Reporter: pinskia at gcc dot gnu.org
  Target Milestone: ---

Filed to remind me to backport r16-3531-gcaa1c2f42691d6 to the release
branches.

This has been a bug since r7-1223-g36b85e432865a3 when handle_builtin_memcmp
was added to strlen opt.