[LegalizeIntegerTypes] Use GetExpandedInteger instead of SplitInteger in ExpandIntRes...

We know the input is going to be expanded as well, so we should
just ask for the already expanded operands. Otherwise we create
nodes that are just going to need to be legalized.

diff --git a/llvm/lib/CodeGen/SelectionDAG/LegalizeIntegerTypes.cpp b/llvm/lib/CodeGen/SelectionDAG/LegalizeIntegerTypes.cpp
index 962ae67..8316289 100644 (file)
--- a/llvm/lib/CodeGen/SelectionDAG/LegalizeIntegerTypes.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/LegalizeIntegerTypes.cpp
@@ -3940,10 +3940,10 @@ void DAGTypeLegalizer::ExpandIntRes_XMULO(SDNode *N,
     // %res = { %5.0, %0 || %1.1 || %2.1 || %5.1 }
     SDValue LHS = N->getOperand(0), RHS = N->getOperand(1);
     SDValue LHSHigh, LHSLow, RHSHigh, RHSLow;
-    SplitInteger(LHS, LHSLow, LHSHigh);
-    SplitInteger(RHS, RHSLow, RHSHigh);
-    EVT HalfVT = LHSLow.getValueType()
-      , BitVT = N->getValueType(1);
+    GetExpandedInteger(LHS, LHSLow, LHSHigh);
+    GetExpandedInteger(RHS, RHSLow, RHSHigh);
+    EVT HalfVT = LHSLow.getValueType();
+    EVT BitVT = N->getValueType(1);
     SDVTList VTHalfMulO = DAG.getVTList(HalfVT, BitVT);
     SDVTList VTFullAddO = DAG.getVTList(VT, BitVT);