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/* { dg-do compile } */
/* { dg-options "-O1 -fscalar-evolutions -fdump-tree-scev-details" } */
int bar (void);
int foo (int x)
{
int a = -100;
int b = 2;
while (b)
{
if (x)
a += 3;
else
a += bar ();
/* Exercises the case when one of the branches of the if-phi-node cannot
be determined: [-oo, +oo].
Since the evolution function is too difficult to handle in the expanded
form, we have to keep it in its symbolic form: "b -> {2, +, a_1}_1". */
b += a;
}
}
/* a -> {-100, +, [min<t, 3>, max<t, 3>]}_1
b -> {2, +, {[min<t, 3>, max<t, 3>] - 100, +, [min<t, 3>, max<t, 3>]}_1}_1
*/
/* FIXME. */
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