[Bug tree-optimization/56778] New: ICE on several benchmarks after r196775.

["ysrumyan at gmail dot com" <gcc-bugzilla at gcc dot gnu dot org>]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56778

             Bug #: 56778
           Summary: ICE on several benchmarks after r196775.
    Classification: Unclassified
           Product: gcc
           Version: 4.9.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: tree-optimization
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: ysrumyan@gmail.com


We got ICE on several benchmarks that can be reproduced on the simple
test-case:
typedef struct {
  float a,b,c;
} S;

S * arr[100];

void bar (float *in[], int n)
{
  int i;
  for (i=0; i<n; i++)
    (*in)[i] = -arr[i]->b;
}

and compile on x86 with following options:

-march=core-avx2 -O3