[PATCH] D93852: [RISCV] Fill out basic integer RVV ISel patterns

[Fraser Cormack via Phabricator via llvm-commits]

frasercrmck marked 2 inline comments as done.
frasercrmck added inline comments.


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Comment at: llvm/test/CodeGen/RISCV/rvv/vrsub-sdnode-rv32.ll:20
+; CHECK-NEXT:    vsetvli a0, zero, e8,mf8,ta,mu
+; CHECK-NEXT:    vrsub.vi v16, v16, -1
+; CHECK-NEXT:    ret
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craig.topper wrote:
> craig.topper wrote:
> > This constant should probably also change. sub -1, X is equivalent to xor x, -1. InstCombine knows this but I guess SelectionDAG doesn't yet.
> Or rather it doesn't know it for SPLAT_VECTOR yet.
Yep good idea. I've updated the tests.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D93852/new/

https://reviews.llvm.org/D93852