R600/SI: Fix unreachable with a sext_in_reg to an illegal type.

llvm-svn: 204945
diff --git a/llvm/lib/Target/R600/R600ISelLowering.cpp b/llvm/lib/Target/R600/R600ISelLowering.cpp
index 4d15321..6405a82 100644
--- a/llvm/lib/Target/R600/R600ISelLowering.cpp
+++ b/llvm/lib/Target/R600/R600ISelLowering.cpp
@@ -762,7 +762,9 @@
                                             SmallVectorImpl<SDValue> &Results,
                                             SelectionDAG &DAG) const {
   switch (N->getOpcode()) {
-  default: return;
+  default:
+    AMDGPUTargetLowering::ReplaceNodeResults(N, Results, DAG);
+    return;
   case ISD::FP_TO_UINT: Results.push_back(LowerFPTOUINT(N->getOperand(0), DAG));
     return;
   case ISD::LOAD: {