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/* { dg-do compile } */
/* { dg-options "-O2 -fdump-tree-vrp1" } */
unsigned foo (unsigned i)
{
if (i == 2)
{
i = i << 2;
if (i != 8)
link_error ();
}
return i;
}
unsigned bar (unsigned i)
{
if (i == 1 << (sizeof (unsigned) * 8 - 1))
{
i = i << 1;
if (i != 0)
link_error ();
}
return i;
}
unsigned baz (unsigned i)
{
i = i & 15;
if (i == 0)
return 0;
i = 1000 - i;
i >>= 1;
i <<= 1;
if (i == 0)
link_error ();
return i;
}
/* { dg-final { scan-tree-dump-times "Folding predicate" 3 "vrp1" } } */
/* { dg-final { cleanup-tree-dump "vrp1" } } */
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