This patch fixes all remaining warnings in:
I hit some warnings related to getCopyPartsToVector. I fixed two
- In widenVectorToPartType() we assumed that we'd always be
using BUILD_VECTOR nodes to expand from one vector type to another,
which is incorrect for scalable vector types. I've fixed this for now
by simply bailing out immediately for scalable vectors.
- In getCopyToPartsVector() I've changed the code to compare
the element counts of different types.