[PATCH] D79304: [DAG] Fold (mul(abs(x),abs(x))) -> (mul(x,x)) (PR39476)

[Roman Lebedev via Phabricator via llvm-commits]

lebedev.ri added a comment.

Echoing what @craig.topper asked, do we somehow end up with that pattern after instcombine had a chance to do this fold?



================
Comment at: llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp:5059
+// on success.
+SDValue DAGCombiner::MatchABS(SDNode *N) {
+  if (N->getOpcode() == ISD::ABS)
----------------
Precommit NFC cleanup?


Repository:
  rG LLVM Github Monorepo

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  https://reviews.llvm.org/D79304/new/

https://reviews.llvm.org/D79304