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/* { dg-do compile } */
/* { dg-options "-O2 -fdump-tree-fre1" } */
int a, *b;
void f ()
{
int d = 0, e = d;
while (a++)
;
if (e)
goto L2;
L1:
d = e;
b = &d;
L2:
if (d)
goto L1;
}
/* The load of d could be eliminated if we'd value-number the
irreducible region in RPO of the reducible result. Likewise
a redundant store could be removed. */
/* { dg-final { scan-tree-dump-times "d = 0;" 1 "fre1" { xfail *-*-* } } } */
/* { dg-final { scan-tree-dump-not " = d;" "fre1" { xfail *-*-* } } } */
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