Hi,
I'm trying to compile a simple ISPC program:
export void normalizeSOA(uniform double array[], uniform int count,
uniform double zeros[]) {
double l2 = 0;
foreach (i = 0 ... count/4) {
double x = array[4*i];
double y = array[4*i+1];
double z = array[4*i+2];
double w = array[4*i+3];
l2 += x*x + y*y + z*z + w*w;
}
zeros[0] = reduce_add(l2);
}
I always get Performance warnings about the gather if the datatype is
double.
I would have expected the loads to be coalesced.
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