Added WaveOps tests for WavePrefixProduct#967

kcloudy0717 wants to merge 1 commit intollvm:mainllvm/offload-test-suite:mainfrom

kcloudy0717:kcloudy0717/WavePrefixProductkcloudy0717/offload-test-suite:kcloudy0717/WavePrefixProductCopy head branch name to clipboard