Make LiveIntervals::handleMove() bundle aware.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150630 91177308-0d34-0410-b5e6-96231b3b80d8

include/llvm/CodeGen/MachineInstr.h

@@ -234,6 +234,11 @@ public:
   /// if either itself or its following instruction is marked "InsideBundle".
   bool isBundled() const;
 
+  /// getBundleStart - If this instruction is inside a bundle return the
+  /// instruction at the start of the bundle. Otherwise just returns the
+  /// instruction itself.
+  MachineInstr* getBundleStart();
+
   /// getDebugLoc - Returns the debug location id of this MachineInstr.
   ///
   DebugLoc getDebugLoc() const { return debugLoc; }