[PATCH] D35566: [DAG] Extend visitSCALAR_TO_VECTOR optimization to truncated vector.

[Eli Friedman via Phabricator via llvm-commits]

efriedma added inline comments.


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Comment at: lib/CodeGen/SelectionDAG/DAGCombiner.cpp:15643
+        if (VT.getVectorNumElements() != InVecT.getVectorNumElements()) {
+          MVT IdxTy = TLI.getVectorIdxTy(DAG.getDataLayout());
+          SDValue ZeroIdx = DAG.getConstant(0, SDLoc(N), IdxTy);
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I think you need to verify that VT and InVecT have the same element type here?


https://reviews.llvm.org/D35566