[Bug c/106172] New: Multiple ICEs building gcc-13 with gcc-12

[chris2553 at googlemail dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106172

            Bug ID: 106172
           Summary: Multiple ICEs building gcc-13 with gcc-12
           Product: gcc
           Version: 12.1.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c
          Assignee: unassigned at gcc dot gnu.org
          Reporter: chris2553 at googlemail dot com
  Target Milestone: ---

Created attachment 53246
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=53246&action=edit
GCC diagnostics file 1

I'm trying to build the gcc-13-20220626 snapshot with the gcc-12-20220702
snapshot but get multiple ICEs. I got the same (or similar) bunch of ICE's last
week trying to build gcc-13-20220626 with gcc-12-20220625, but didn't have time
to get the diagnostics and report it last week)

I've run the build again with the recommended -freport-bug added to CFLAGSand
the files saved to /tmp/ are attached as is a file containing the text splat on
the console when the ICEs happened.