Unweaken vtables as per http://llvm.org/docs/CodingStandards.html#ll_virtual_anch

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146960 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/ARM/ARMMachineFunctionInfo.h b/lib/Target/ARM/ARMMachineFunctionInfo.h
index 138f0c2..96be29f 100644
--- a/lib/Target/ARM/ARMMachineFunctionInfo.h
+++ b/lib/Target/ARM/ARMMachineFunctionInfo.h
@@ -25,6 +25,7 @@
 /// ARMFunctionInfo - This class is derived from MachineFunctionInfo and
 /// contains private ARM-specific information for each MachineFunction.
 class ARMFunctionInfo : public MachineFunctionInfo {
+  virtual void anchor();
 
   /// isThumb - True if this function is compiled under Thumb mode.
   /// Used to initialized Align, so must precede it.