Properly emit _fltused with FastISel. Refactor to share code with SDAG.
Patch by Joe Groff!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151183 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/MachineModuleInfo.cpp b/lib/CodeGen/MachineModuleInfo.cpp
index d6df6e2..ea98b23 100644
--- a/lib/CodeGen/MachineModuleInfo.cpp
+++ b/lib/CodeGen/MachineModuleInfo.cpp
@@ -257,7 +257,7 @@
   : ImmutablePass(ID), Context(MAI, MRI, MOFI),
     ObjFileMMI(0), CompactUnwindEncoding(0), CurCallSite(0), CallsEHReturn(0),
     CallsUnwindInit(0), DbgInfoAvailable(false),
-    CallsExternalVAFunctionWithFloatingPointArguments(false) {
+    UsesVAFloatArgument(false) {
   initializeMachineModuleInfoPass(*PassRegistry::getPassRegistry());
   // Always emit some info, by default "no personality" info.
   Personalities.push_back(NULL);