[PATCH] D158195: [RISCV] Combine (vrot{l,r} vxi16, 8) -> vrev8

[Luke Lau via Phabricator via llvm-commits]

luke added inline comments.


================
Comment at: llvm/test/CodeGen/RISCV/rvv/fixed-vectors-shuffle-reverse.ll:278
+; ZVBB-NEXT:    vsetivli zero, 1, e32, mf2, ta, ma
+; ZVBB-NEXT:    vror.vi v8, v8, 16
+; ZVBB-NEXT:    ret
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luke wrote:
> craig.topper wrote:
> > How does this patch create new rotates?
> Not sure how I didn't notice these. Looks like it always emitted rotates on zvbb, there's just an issue with the filecheck prefixes. 
*It emits rotates on zvbb after D157417


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D158195/new/

https://reviews.llvm.org/D158195