Typo.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152841 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/LiveDebugVariables.cpp b/lib/CodeGen/LiveDebugVariables.cpp
index c35302a..7241334 100644
--- a/lib/CodeGen/LiveDebugVariables.cpp
+++ b/lib/CodeGen/LiveDebugVariables.cpp
@@ -841,7 +841,7 @@
 UserValue::splitRegister(unsigned OldReg, ArrayRef<LiveInterval*> NewRegs) {
   bool DidChange = false;
   // Split locations referring to OldReg. Iterate backwards so splitLocation can
-  // safely erase unuused locations.
+  // safely erase unused locations.
   for (unsigned i = locations.size(); i ; --i) {
     unsigned LocNo = i-1;
     const MachineOperand *Loc = &locations[LocNo];