[PATCH] D120302: [RISCV] Expend vcpop and vfirst with VL=0 to li imm

[Craig Topper via Phabricator via llvm-commits]

craig.topper added a comment.

This should be done as a DAGCombine not isel. You want the constant folding to enable other optimizations.


Repository:
  rG LLVM Github Monorepo

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  https://reviews.llvm.org/D120302/new/

https://reviews.llvm.org/D120302