[Bug c/30628] New: ICE with __may_alias__ attribute.

["osv at javad dot com" <gcc-bugzilla at gcc dot gnu dot org>]

[osv@fulcrum tmp]$ cat may_alias.c
typedef unsigned int T1[1];
typedef T1 __attribute__((__may_alias__)) T1A;
[osv@fulcrum tmp]$ ~/try/bin/gcc -c -g may_alias.c -o may_alias.o -v
Using built-in specs.
Target: i686-pc-linux-gnu
Configured with: ./configure --prefix=/home/osv/try
Thread model: posix
gcc version 4.1.1
 /home/osv/try/libexec/gcc/i686-pc-linux-gnu/4.1.1/cc1 -quiet -v may_alias.c
-quiet -dumpbase may_alias.c -mtune=pentiumpro -auxbase-strip may_alias.o -g
-version -o /tmp/cc7vnJKn.s
ignoring nonexistent directory
"/home/osv/try/lib/gcc/i686-pc-linux-gnu/4.1.1/../../../../i686-pc-linux-gnu/include"
#include "..." search starts here:
#include <...> search starts here:
 /usr/local/include
 /home/osv/try/include
 /home/osv/try/lib/gcc/i686-pc-linux-gnu/4.1.1/include
 /usr/include
End of search list.
GNU C version 4.1.1 (i686-pc-linux-gnu)
        compiled by GNU C version 4.0.2 20051125 (Red Hat 4.0.2-8).
GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072
Compiler executable checksum: 024b74b82ea166b936dc5fd3b214e11c
may_alias.c:2: internal compiler error: in modified_type_die, at
dwarf2out.c:8463
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://gcc.gnu.org/bugs.html> for instructions.
[osv@fulcrum tmp]$


-- 
           Summary: ICE with __may_alias__ attribute.
           Product: gcc
           Version: 4.1.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: osv at javad dot com
 GCC build triplet: i686-pc-linux-gnu
  GCC host triplet: i686-pc-linux-gnu
GCC target triplet: i686-pc-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30628