Subversion Repositories openrisc_2011-10-31

/* This was a missed optimization in tree constant propagation

   that CSE would catch later on.  */

/* { dg-do compile } */

/* { dg-options "-O -fdump-tree-dce2" } */

double _Complex *a;

static const double _Complex b[10] = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9};

void

test (void)

{

  a[0] = b[0] + b[1];

  a[1] = b[0] + b[1];

  return;

}

/* After DCE2 which runs after FRE, the expressions should be fully

   constant folded.  There should be no loads from b left.  */

/* { dg-final { scan-tree-dump-times "__complex__ \\\(1.0e\\\+0, 0.0\\\)" 2 "dce2" } } */

/* { dg-final { scan-tree-dump-times "= b" 0 "dce2" } } */

/* { dg-final { cleanup-tree-dump "dce2" } } */