Displaying 1 result from an estimated 1 matches for "collectinststoscalar".
2018 Jun 01
2
[VPlan] about vectorization factor selection
...(unsigned VF = 1; VF <= MaxVF; VF *= 2) {
// Collect Uniform and Scalar instructions after vectorization with VF.
CM.collectUniformsAndScalars(VF);
// Collect the instructions (and their associated costs) that will be more
// profitable to scalarize.
if (VF > 1)
CM.collectInstsToScalarize(VF);
}
It looks when force vectorization is not given, it is not necessary to setup uniform and scalar info for every VF. For a VF, we can do a check before collectUniformsAndScalars() and collectInstsToScalarize() to see if the types used in the code can actually yield any vector types(after...