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/* { dg-do compile } */
/* { dg-options "-O2 -fno-tree-fre -fdisable-tree-evrp -fdump-tree-vrp1 -std=gnu89 -fno-thread-jumps" } */
foo (int *p)
{
int x = baz ();
if (p == 0)
goto L78;
else
{
x = *p;
/* This should be folded to if (1). */
if (p)
x = x + 1;
L78:
/* This should not be folded to if (1). */
if (p)
{
x = baz (*p);
/* This should be folded to if (1). */
if (p)
return x + 3;
}
return x - 3;
}
}
/* { dg-final { scan-tree-dump-times "Folding predicate p_" 2 "vrp1" } } */
/* { dg-final { scan-tree-dump-times "!= 0B to 1" 2 "vrp1" } } */
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