[PATCH] D33840: [DAGCombine] Do not try to deduplicate commutative operations if both operand are the same.

[Simon Pilgrim via Phabricator via llvm-commits]

RKSimon added a comment.

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Comment at: lib/CodeGen/SelectionDAG/DAGCombiner.cpp:1565
   // If N is a commutative binary node, try commuting it to enable more
   // sdisel CSE.
   if (!RV.getNode() && SelectionDAG::isCommutativeBinOp(N->getOpcode()) &&
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Why you're here, please can you change this to SDISel to make it clearer.


https://reviews.llvm.org/D33840