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/* PR tree-optimization/20640 */
/* After unrolling the loop, we'd turn some conditional branches into
unconditional ones, but branch redirection would fail to compute
the PHI args for the PHI nodes in the replacement edge
destination, so they'd remain NULL causing crashes later on. */
/* { dg-do compile } */
static int a = 0;
extern int foo (void);
extern int *bar (void) __attribute__ ((__const__));
void
test (int x)
{
int b = 10;
while (foo () == -1 && *bar () == 4 && b > 0)
--b;
a = x;
}
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