[llvm] [InstCombine] Fold bitcast into vp.load (PR #192173)

[Craig Topper via llvm-commits]

topperc wrote:

I don't remember what the alignment assumptions are for VP loads that don't have a alignment attribute on the pointer. If this making the backend assume a higher alignment, we can't do it without adding the attribute for the original alignment.

https://github.com/llvm/llvm-project/pull/192173