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/* { dg-do compile } */
/* Profitable from Power8 since it supports efficient unaligned load. */
/* { dg-options "-Ofast -mdejagnu-cpu=power8 -fdump-tree-vect-details -fdump-tree-forwprop4" } */
#ifndef INDEXTYPE
#define INDEXTYPE unsigned int
#endif
double vmul(INDEXTYPE *rowstart, INDEXTYPE *rowend,
double *luval, double *dst)
{
double res = 0;
for (const INDEXTYPE * col = rowstart; col != rowend; ++col, ++luval)
res += *luval * dst[*col];
return res;
}
/* With gather emulation this should be profitable to vectorize from Power8. */
/* { dg-final { scan-tree-dump "loop vectorized" "vect" } } */
/* The index vector loads and promotions should be scalar after forwprop. */
/* { dg-final { scan-tree-dump-not "vec_unpack" "forwprop4" } } */
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