[llvm] [ConstantFolding] Fold array to vector in ConstantFoldLoadThroughBitcast (PR #192775)

[Yingwei Zheng via llvm-commits]

dtcxzyw wrote:

> This looks like it will incorrectly handle vectors of non-byte-size type as well as vectors of over-aligned elements. At the least these need to be tested.

These cases are guarded by the check `SrcSize == DestSize` above.


https://github.com/llvm/llvm-project/pull/192775