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/* { dg-do compile } */
/* { dg-options "-O2 -fdump-tree-dse-details" } */
 
#define N 256
 
struct
{
  int x;
  int y;
} S[100];
 
int z[100];
 
int
foo (void)
{
  int i;
  int x, y;
 
  S[5].x = 0;
  S[5].y = 0;
 
  x = 5 + z[0];
  y = z[0];
 
  S[5].x = x;
  S[5].y = y;
}
 
/* { dg-final { scan-tree-dump-times "Deleted dead store" 2 "dse1" } } */
/* { dg-final { cleanup-tree-dump "dse*" } } */