[Bug c/52829] New: gcc releases up to 4.6.2 triggers ICE when compiling Gambit Scheme at -O2 on ppc64

[salimma at fedoraproject dot org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52829

             Bug #: 52829
           Summary: gcc releases up to 4.6.2 triggers ICE when compiling
                    Gambit Scheme at -O2 on ppc64
    Classification: Unclassified
           Product: gcc
           Version: 4.6.2
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c
        AssignedTo: unassig...@gcc.gnu.org
        ReportedBy: sali...@fedoraproject.org


Created attachment 27059
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=27059
Build log for Gambit 4.6.5

With GCC 4.4.6 (used by Red Hat Enterprise Linux 6) and GCC 4.6.2 (installed on
Fedora's test PowerPC machine's Fedora 16 target), building Gambit Scheme with
-O2 -- which is the default since their 4.6.4 release -- triggers an internal
compiler error.

This is fixed in GCC 4.7.0 (as tested on our PowerPC machine's Rawhide target).

For reference:
Gambit bug report:
http://www.iro.umontreal.ca/~gambit/bugzilla/show_bug.cgi?id=155
Red Hat bug report: https://bugzilla.redhat.com/show_bug.cgi?id=808285