[Bug target/23473] New: ICE at config/arm/arm.c:3280

["kazu at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>]

Consider

struct s {
  unsigned a : 1;
};

int
foo (struct s *p, int b, int c, int d)
{
  p->a = 0;
  return b;
}

"./cc1 -quiet -O2 -mthumb -fPIC min.c" gives me

min.c: In function 'foo':
min.c:10: internal compiler error: in thumb_find_work_register, at
config/arm/arm.c:3280
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://gcc.gnu.org/bugs.html> for instructions.

This testcase is reduced from libiberty/regex.c.

-- 
           Summary: ICE at config/arm/arm.c:3280
           Product: gcc
           Version: 4.1.0
            Status: UNCONFIRMED
          Keywords: ice-on-valid-code
          Severity: normal
          Priority: P2
         Component: target
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: kazu at gcc dot gnu dot org
                CC: gcc-bugs at gcc dot gnu dot org
  GCC host triplet: i686-pc-linux-gnu
GCC target triplet: arm-none-eabi


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23473