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/* { dg-do compile } */
/* { dg-require-effective-target vect_float } */
/* { dg-additional-options "-ffast-math" } */
float
frd (float *p, float *lastone)
{
float sum = 0;
for (; p <= lastone; p += 16)
sum += p[0] + p[1] + p[2] + p[3] + p[4] + p[5] + p[6] + p[7]
+ p[8] + p[9] + p[10] + p[11] + p[12] + p[13] + p[14] + p[15];
return sum;
}
/* { dg-final { scan-tree-dump "reduction: detected reduction chain" "vect" } } */
/* { dg-final { scan-tree-dump-not "SLP discovery of reduction chain failed" "vect" } } */
/* { dg-final { scan-tree-dump "optimized: loop vectorized" "vect" } } */
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