Hi,
ispc generates code then times slower than msvc2013 for a simple loop add:
void simple_msvc(int8_t vin1[], int8_t vin2[], int8_t vout[], int count)
{
for (int index = 0; index < count; ++index)
{
vout[index] = vin1[index] + vin2[index];
}
}
export void simple_ispc(uniform int8 vin1[], uniform int8 vin2[], uniform
int8 vout[], uniform int count) {
foreach (index = 0 ... count) {
vout[index] = vin1[index] + vin2[index];
}
}
It seems that ispc operates with int32 and generates unnecessary shuffles.
Can I tweak something?
Bruno
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