[Bug middle-end/20946] New: --enable-checking=yes,fold fails on the mainline

[pinskia at gcc dot gnu dot org]

--enable-checking=yes,fold fails on the mainline because when we get a SSA_NAME, we checksum the 
whole use-def chain which is wrong.

-- 
           Summary: --enable-checking=yes,fold fails on the mainline
           Product: gcc
           Version: 4.1.0
            Status: UNCONFIRMED
          Keywords: ice-on-valid-code, build
          Severity: normal
          Priority: P2
         Component: middle-end
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: pinskia at gcc dot gnu dot org
                CC: gcc-bugs at gcc dot gnu dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20946