[PATCH] D158019: [RISCVInsertVSETVLI] Handle vl-preserve case in backwards rewrite

[Philip Reames via Phabricator via llvm-commits]

reames updated this revision to Diff 550797.
reames added a comment.

Requesting re-review.  Found a nasty bug where I'd forgotten to clear the dead flag on the previous register.  A second set of eyes on this to make sure I'm not missing anything else is appreciated.


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D158019/new/

https://reviews.llvm.org/D158019

Files:
  llvm/lib/Target/RISCV/RISCVInsertVSETVLI.cpp
  llvm/test/CodeGen/RISCV/rvv/fixed-vectors-masked-gather.ll
  llvm/test/CodeGen/RISCV/rvv/fixed-vectors-masked-scatter.ll
  llvm/test/CodeGen/RISCV/rvv/fixed-vectors-reduction-int.ll
  llvm/test/CodeGen/RISCV/rvv/fixed-vectors-unaligned.ll
  llvm/test/CodeGen/RISCV/rvv/vreductions-int-vp.ll
  llvm/test/CodeGen/RISCV/rvv/vreductions-int.ll
  llvm/test/CodeGen/RISCV/rvv/vsetvli-insert.ll

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