[PATCH] D88783: [InstCombine] matchFunnelShift - fold or(shl(a,x),lshr(b,sub(bw,x))) -> fshl(a,b,x) iff x < bw

[Simon Pilgrim via Phabricator via llvm-commits]

RKSimon updated this revision to Diff 296911.
RKSimon retitled this revision from "[InstCombine] matchRotate - fold or(shl(v,x),lshr(v,bw-x)) -> fshl(v,v,x) iff x < bw" to "[InstCombine] matchFunnelShift - fold or(shl(a,x),lshr(b,sub(bw,x))) -> fshl(a,b,x) iff x < bw".
RKSimon added a comment.

Add generic funnel support now that D88834 <https://reviews.llvm.org/D88834> has landed


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D88783/new/

https://reviews.llvm.org/D88783

Files:
  llvm/lib/Transforms/InstCombine/InstCombineAndOrXor.cpp
  llvm/test/Transforms/InstCombine/funnel.ll
  llvm/test/Transforms/InstCombine/rotate.ll

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