Rename getAnalysisToUpdate to getAnalysisIfAvailable.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63198 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp b/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
index ca0cd6e..3ae70c8 100644
--- a/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
+++ b/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
@@ -314,8 +314,8 @@
   DOUT << "\n\n\n=== " << Fn.getName() << "\n";
 
   FuncInfo->set(Fn, *MF, EnableFastISel);
-  MachineModuleInfo *MMI = getAnalysisToUpdate<MachineModuleInfo>();
-  DwarfWriter *DW = getAnalysisToUpdate<DwarfWriter>();
+  MachineModuleInfo *MMI = getAnalysisIfAvailable<MachineModuleInfo>();
+  DwarfWriter *DW = getAnalysisIfAvailable<DwarfWriter>();
   CurDAG->init(*MF, MMI, DW);
   SDL->init(GFI, *AA);