[PATCH] D72457: GlobalISel: Move getLLTForMVT/getMVTForLLT

[James Y Knight via Phabricator via llvm-commits]

jyknight added a comment.

Can you add a comment noting the deficiencies of these conversions?

In particular:

1. MVT can't distinguish pointers from integers, and LLT cannot distinguish floating-point from integers. Therefore, only integer scalars and vectors will result from these conversions.
2. LLT cannot represent scalable vector types (yet?), so getLLTForMVT will assert if provided such an MVT.


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https://reviews.llvm.org/D72457