[PATCH] D108129: [DAGCombiner] Teach combineShiftToMULH to handle constant and const splat vector.

[Jianjian Guan via Phabricator via llvm-commits]

jacquesguan updated this revision to Diff 367134.
jacquesguan added a comment.

Update mulhu case for (mulhu x, (1 << c)) -> x >> (bitwidth - c).


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D108129/new/

https://reviews.llvm.org/D108129

Files:
  llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
  llvm/test/CodeGen/RISCV/rvv/vmulh-sdnode-rv32.ll
  llvm/test/CodeGen/RISCV/rvv/vmulhu-sdnode-rv32.ll

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