[Bug middle-end/34701] New: ICE in tree-ssa-ccp.c with -fipa-struct-reorg

[alond at il dot ibm dot com]

The following testcase fails for me when run with -fipa-struct-reorg:

#include <stdlib.h>

typedef struct baba
{
  int a;
  int b[10];
} type_struct;

type_struct *str1;

int main()
{
  int i;

  str1 = malloc (10 * sizeof (type_struct));

  for (i=0; i<=9; i++)
    str1[i].a = str1[i].b[0];

  return 0;
}

The failure is:

try2.c: In function ‘main’:
try2.c:12: internal compiler error: in set_lattice_value, at tree-ssa-ccp.c:486
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.


-- 
           Summary: ICE in tree-ssa-ccp.c with -fipa-struct-reorg
           Product: gcc
           Version: 4.3.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: middle-end
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: alond at il dot ibm dot com
 GCC build triplet: powerpc-suse-linux
  GCC host triplet: powerpc-suse-linux
GCC target triplet: powerpc-suse-linux


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34701