[PATCH] D35563: [DAG] Optimize away degenerate INSERT_VECTOR_ELT nodes.
Simon Pilgrim via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Thu Jul 20 04:03:15 PDT 2017
RKSimon accepted this revision.
RKSimon added a comment.
This revision is now accepted and ready to land.
LGTM with one minor
================
Comment at: lib/CodeGen/SelectionDAG/DAGCombiner.cpp:13493
+ if (InVal.getOpcode() == ISD::EXTRACT_VECTOR_ELT &&
+ InVec == InVal->getOperand(0) && EltNo == InVal->getOperand(1))
+ return InVec;
----------------
Use InVal.getOperand(0) and InVal.getOperand(1) directly?
https://reviews.llvm.org/D35563
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