[PATCH] D119115: [RISCV] Improve insert_vector_elt for fixed mask registers.

[Craig Topper via Phabricator via llvm-commits]

craig.topper added a comment.

Something worth thinking about is that this may not be a good sequence for a core with decoupled scalar and vector units. This introduces a copy from vector to scalar which prevents the scalar core from running ahead of the vector unit in such a design.


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  https://reviews.llvm.org/D119115/new/

https://reviews.llvm.org/D119115