[PATCH] D152724: [RISCV] Use TU vmv.v.v instead of vslideup.vi N, M, 0 for insert vector_shuffles

[Luke Lau via Phabricator via llvm-commits]

luke created this revision.
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This applies the same technique in https://reviews.llvm.org/D152565 to
vslideups when lowering vector_shuffles that have an insert pattern in
their mask.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D152724

Files:
  llvm/lib/Target/RISCV/RISCVISelLowering.cpp
  llvm/test/CodeGen/RISCV/rvv/fixed-vectors-fp-buildvec.ll
  llvm/test/CodeGen/RISCV/rvv/fixed-vectors-int-shuffles.ll
  llvm/test/CodeGen/RISCV/rvv/fixed-vectors-interleaved-access.ll

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