[PATCH] D77152: [SelectionDAG] Better legalization for FSHL and FSHR

[Jay Foad via Phabricator via llvm-commits]

foad marked an inline comment as done.
foad added inline comments.


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Comment at: llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp:6289
-        return;
-      }
-
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RKSimon wrote:
> @foad We've lost this functionality - this needs adding to the new expansion code or to DAGCombiner
` TargetLowering::expandROT` does this: "// If a rotate in the other direction is supported, use it." Are there tests showing that it's not working for some reason?


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D77152/new/

https://reviews.llvm.org/D77152