Fix typos in comments

llvm-svn: 215777
diff --git a/llvm/lib/CodeGen/AtomicExpandLoadLinkedPass.cpp b/llvm/lib/CodeGen/AtomicExpandLoadLinkedPass.cpp
index 0c37c45..5c40069 100644
--- a/llvm/lib/CodeGen/AtomicExpandLoadLinkedPass.cpp
+++ b/llvm/lib/CodeGen/AtomicExpandLoadLinkedPass.cpp
@@ -105,7 +105,7 @@
           ? Monotonic
           : LI->getOrdering();
 
-  // The only 64-bit load guaranteed to be single-copy atomic by the ARM ARM is
+  // The only 64-bit load guaranteed to be single-copy atomic by the ARM is
   // an ldrexd (A3.5.3).
   IRBuilder<> Builder(LI);
   Value *Val = TM->getSubtargetImpl()->getTargetLowering()->emitLoadLinked(