[Bug rtl-optimization/22384] New: compiling cp-mangle.c causes an ICE

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

Consider:

struct d_print_mod
{
  int type;
  int dummy0;
  int dummy1;
};
struct d_print_info
{
  struct d_print_mod *modifiers;
}
d_print_comp (struct d_print_info *dpi, struct d_print_mod *pdpm, int a)
{
  struct d_print_mod adpm[4];
  unsigned int i = 0;
  dpi->modifiers = &adpm[0];
  while (pdpm->type)
    {
      if (a)
        {
          adpm[i] = *pdpm;
          ++i;
        }
    }
}

Compiling this with arm-none-eabi-gcc causes an ICE like so:

min.c: In function 'd_print_comp':
min.c:24: internal compiler error: in loop_givs_rescan, at loop.c:5517
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://gcc.gnu.org/bugs.html> for instructions.

Reverting

http://gcc.gnu.org/ml/gcc-cvs/2005-07/msg00296.html

cures the problem.

Because of this problem, arm-none-eabi does not build currently.

-- 
           Summary: compiling cp-mangle.c causes an ICE
           Product: gcc
           Version: unknown
            Status: UNCONFIRMED
          Keywords: ice-on-valid-code
          Severity: normal
          Priority: P2
         Component: rtl-optimization
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: kazu at gcc dot gnu dot org
                CC: danglin at gcc dot gnu dot org,gcc-bugs at gcc dot gnu
                    dot org
GCC target triplet: arm-none-eabi


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=22384