[Bug tree-optimization/117949] New: GCC fails to produce edsp vector add instruction

[uis9936 at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117949

            Bug ID: 117949
           Summary: GCC fails to produce edsp vector add instruction
           Product: gcc
           Version: 15.0
               URL: https://godbolt.org/z/Y7EfYYb5Y
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: tree-optimization
          Assignee: unassigned at gcc dot gnu.org
          Reporter: uis9936 at gmail dot com
  Target Milestone: ---

In example https://godbolt.org/z/Y7EfYYb5Y GCC can produce uadd8.
And in example https://godbolt.org/z/zhe15K55q GCC produces even worse code. Am
I missing some flag?