extend fp values with FP_EXTEND not FP_ROUND.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48097 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp b/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
index 1140e20..97e12a4 100644
--- a/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
+++ b/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
@@ -759,9 +759,12 @@
}
}
- if (MVT::isFloatingPoint(PartVT) && MVT::isFloatingPoint(ValueVT))
- return DAG.getNode(ISD::FP_ROUND, ValueVT, Val,
- DAG.getIntPtrConstant(TruncExact));
+ if (MVT::isFloatingPoint(PartVT) && MVT::isFloatingPoint(ValueVT)) {
+ if (ValueVT < Val.getValueType())
+ return DAG.getNode(ISD::FP_ROUND, ValueVT, Val,
+ DAG.getIntPtrConstant(TruncExact));
+ return DAG.getNode(ISD::FP_EXTEND, ValueVT, Val);
+ }
if (MVT::getSizeInBits(PartVT) == MVT::getSizeInBits(ValueVT))
return DAG.getNode(ISD::BIT_CONVERT, ValueVT, Val);