Fix a bug in the legalization of shuffle vectors. When we emulate shuffles using BUILD_VECTORS we may be using a BV of different type. Make sure to cast it back.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147851 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp b/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
index e69cfd0..4c5bb9e 100644
--- a/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
+++ b/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
@@ -2862,8 +2862,10 @@
Op1,
DAG.getIntPtrConstant(Idx - NumElems)));
}
-
+
Tmp1 = DAG.getNode(ISD::BUILD_VECTOR, dl, VT, &Ops[0], Ops.size());
+ // We may have changed the BUILD_VECTOR type. Cast it back to the Node type.
+ Tmp1 = DAG.getNode(ISD::BITCAST, dl, Node->getValueType(0), Tmp1);
Results.push_back(Tmp1);
break;
}