If the instructions state is alternate and/or contains non-directly
matching instructions, need to check if it is better to represent such
operations as non-alternate with copyables.
To do this, we need to compare operands between the instructions in their
different representations and choose the best one for optimal
vectorization.
Reviewers: RKSimon, hiraditya
Pull Request: https://github.com/llvm/llvm-project/pull/183777
2bb0fa46a8