[PATCH] D148341: [DAGCombiner] Fold add (mul x, C), x to mul x, C+1

[Noah Goldstein via Phabricator via llvm-commits]

goldstein.w.n added inline comments.


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Comment at: llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp:3061
 
+  // add (mul x, C), x -> mul x, C+1
+  if (N0.getOpcode() == ISD::MUL && N0.getOperand(0) == N1 &&
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Does the equivilent ever come up for sub?


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D148341/new/

https://reviews.llvm.org/D148341