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/* { dg-do compile } */
/* { dg-options "-O2 -fdump-tree-vrp" } */
foo (int i, int j, int a)
{
if (i >= 10)
if (i <= 30)
if (i == j)
{
a--;
/* This should fold to 'if (0)'. */
if (i < 0)
i = baz ();
/* This should fold to 'if (1)'. */
if (j > 0)
a--;
/* This should fold to 'if (0)'. */
if (i != j)
return 0;
}
return i + a + j;
}
/* { dg-final { scan-tree-dump-times "Folding predicate i_.*to 0" 1 "vrp" } } */
/* { dg-final { scan-tree-dump-times "Folding predicate j_.*to 1" 1 "vrp" } } */
/* { dg-final { scan-tree-dump-times "Folding predicate i_.*to 0" 1 "vrp" } } */
/* { dg-final { cleanup-tree-dump "vrp" } } */
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