[RISCV] Allow undef elements in isDeinterleaveShuffle#114585

Merged

preames merged 3 commits intollvm:mainfrom

preames:pr-deinterleave-shuffle-undef-elements

Nov 4, 2024

Commits on Nov 1, 2024

Commits on Nov 4, 2024

Fix bug in prior version and add additional tests
preames
committed