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/* { dg-do compile } */
/* { dg-require-effective-target vect_int_mult } */
int
bar (int *x, int a, int b, int n)
{
x = __builtin_assume_aligned (x, __BIGGEST_ALIGNMENT__);
int sum1 = 0;
int sum2 = 0;
for (int i = 0; i < n; ++i)
{
/* Reduction chain vectorization fails here because of the
different operations but we can still vectorize both
reductions as SLP reductions, saving IVs. */
sum1 += x[2*i] - a;
sum1 += x[2*i+1] * b;
sum2 += x[2*i] - b;
sum2 += x[2*i+1] * a;
}
return sum1 + sum2;
}
/* { dg-final { scan-tree-dump "Loop contains only SLP stmts" "vect" } } */
/* { dg-final { scan-tree-dump "vectorizing stmts using SLP" "vect" } } */
/* { dg-final { scan-tree-dump "vectorized 1 loops" "vect" } } */
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