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[/] [openrisc/] [trunk/] [gnu-src/] [gcc-4.5.1/] [gcc/] [testsuite/] [gcc.dg/] [tree-ssa/] [ssa-pre-19.c] - Rev 298

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/* { dg-do compile } */
/* { dg-options "-O2 -fdump-tree-pre-stats" } */
 
struct Loc {
    int x[3];
};
 
void bar (struct Loc *);
 
int foo (int i, int j, int k, int b)
{
  struct Loc IND;
  int res;
 
  if (b)
    {
      IND.x[0] = i;
      IND.x[1] = j;
      IND.x[2] = k-1;
    }
  else
    {
      IND.x[0] = i;
      IND.x[1] = j;
      IND.x[2] = k;
    }
 
  /* This should be optimized to i + j + {k, k + 1}.  */
  res = IND.x[0] + IND.x[1] + IND.x[2];
 
  /* This is just to prevent SRA.  */
  bar (&IND);
 
  return res;
}
 
/* All three loads should be eliminated.  */
/* { dg-final { scan-tree-dump "Eliminated: 3" "pre" } } */
/* { dg-final { cleanup-tree-dump "pre" } } */
 

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