[PATCH] D123799: [RISCV] Mark FSIN and other math functions as Expand for scalable vectors.

[Fraser Cormack via Phabricator via llvm-commits]

frasercrmck added a comment.

I agree they should probably be invalid, conceptually, but in reality I don't like that we have users of cost models crash when encountering invalid costs, with the rationale that the IR shouldn't contain anything with an invalid cost. I don't see how those two models are compatible.


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https://reviews.llvm.org/D123799