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/* { dg-do compile } */
/* { dg-options "-O2 -ftree-loop-vectorize -fdump-tree-pcom-details -fdisable-tree-vect" } */
extern double arr[100];
extern double foo (double, double);
extern double sum;
void
test (int i_0, int i_n)
{
int i;
for (i = i_0; i < i_n - 1; i++)
{
double a = arr[i];
double b = arr[i + 1];
sum += a * b;
}
}
/* { dg-final { scan-tree-dump "Executing predictive commoning without unrolling" "pcom" } } */
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