[PATCH] D82329: [SVE] Fix invalid Scalable to fixed width vetor type demotion in LLT

[David Sherwood via Phabricator via llvm-commits]

david-arm added a comment.

Perhaps this change is good enough? We call computeValueLLTs just before lowerFormalArguments, which will detect the scalable type and fall back anyway even if the LLT type is wrong. The other option is to add yet another fallBackOnDAGISel type callback that allows the backend to reject certain types before we create the vregs.


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https://reviews.llvm.org/D82329