[PATCH] D137530: [RISCV] Splat scalar to be of length VL instead of 1 for reductions

[Wang Pengcheng via Phabricator via llvm-commits]

pcwang-thead updated this revision to Diff 475042.
pcwang-thead added a comment.

For VP reductions, we can do this iff we can prove AVL is non-zero.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D137530/new/

https://reviews.llvm.org/D137530

Files:
  llvm/lib/Target/RISCV/RISCVISelLowering.cpp
  llvm/test/CodeGen/RISCV/rvv/fixed-vectors-reduction-fp.ll
  llvm/test/CodeGen/RISCV/rvv/fixed-vectors-reduction-int.ll
  llvm/test/CodeGen/RISCV/rvv/fold-binary-reduce.ll
  llvm/test/CodeGen/RISCV/rvv/vreductions-fp-sdnode.ll
  llvm/test/CodeGen/RISCV/rvv/vreductions-int.ll

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