[PATCH] D62938: [SLP] Forbid to vectorize bundles with same opcode but different IR flags

[Roman Lebedev via Phabricator via llvm-commits]

lebedev.ri added a comment.

Please can you add a better explanation of the problem to the description of the patch?
I'm not sure what the problem is, you are allowed to drop `nuw`/`nsw` flags: https://rise4fun.com/Alive/plNm
So the new vectorized binop should simply take the smallest common subset of flags, which likely most often means no flags.


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  https://reviews.llvm.org/D62938/new/

https://reviews.llvm.org/D62938