[llvm] [VPlan] Add transform to replace VPWidenCanonicalIV with wide IV. (PR #194267)

[Ramkumar Ramachandra via llvm-commits]

https://github.com/artagnon commented:

Also, the issue with the cost-based transform is that it cannot be guaranteed to fixup things for https://github.com/llvm/llvm-project/pull/191219.

https://github.com/llvm/llvm-project/pull/194267