[Bug tree-optimization/117705] New: [15 regression] g++.dg/vect/pr64410.cc and gcc.dg/tree-ssa/pr32964.c FAIL

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117705

            Bug ID: 117705
           Summary: [15 regression] g++.dg/vect/pr64410.cc and
                    gcc.dg/tree-ssa/pr32964.c FAIL
           Product: gcc
           Version: 15.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: tree-optimization
          Assignee: unassigned at gcc dot gnu.org
          Reporter: ro at gcc dot gnu.org
  Target Milestone: ---
            Target: i386-pc-solaris2.11

Between 20240820 (5348e3cb9bc99d2ee4d7438b8eca5c92fff5b931) and 20240821
(f577959f420ae404f99f630dadc1c0370734d0da),
two tests regressed on 32-bit Solaris/x86:

+FAIL: g++.dg/vect/pr64410.cc  -std=c++98  scan-tree-dump vect "vectorized 1
loops in function"

+FAIL: gcc.dg/tree-ssa/pr32964.c scan-tree-dump-times optimized "union" 0

This doesn't happen on Linux/i686, so I guess a reghunt is in order.