[Bug objc/28062] New: [4.0/4.1 regression] ICE in simplify_subreg, at simplify-rtx.c:4466

[tbm at cyrius dot com]

[ forwarded from http://bugs.debian.org/373820 ]

We're seeing the following ICE, both with gcc 4.1 and latest 4.2 (but 4.0
works).  Apparently it only happens on x86_64.  It works when you drop the
optimization flag.

(sid)75:tbm@usurper: ~/delta/bin] /usr/lib/gcc-snapshot/bin/gcc -c -O2 mini.m
mini.m: In function '-[CynthiuneHeaderCell
_drawArrowOfSize:atReferencePoint:]':
mini.m:75: internal compiler error: in simplify_subreg, at simplify-rtx.c:4466
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://gcc.gnu.org/bugs.html> for instructions.
For Debian GNU/Linux specific bug reporting instructions,
see <URL:file:///usr/share/doc/gcc-4.1/README.Bugs>.
zsh: exit 1     /usr/lib/gcc-snapshot/bin/gcc -c -O2 mini.m
(sid)76:tbm@usurper: ~/delta/bin]


-- 
           Summary: [4.0/4.1 regression] ICE in simplify_subreg, at
                    simplify-rtx.c:4466
           Product: gcc
           Version: 4.1.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: objc
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: tbm at cyrius dot com
 GCC build triplet: x86_64-linux-gnu
GCC target triplet: x86_64-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=28062