Fix typo in comment.

llvm-svn: 166750
diff --git a/llvm/lib/CodeGen/ScheduleDAGInstrs.cpp b/llvm/lib/CodeGen/ScheduleDAGInstrs.cpp
index 8dcbf83..496473d 100644
--- a/llvm/lib/CodeGen/ScheduleDAGInstrs.cpp
+++ b/llvm/lib/CodeGen/ScheduleDAGInstrs.cpp
@@ -71,7 +71,7 @@
       // object. We don't have to worry about the case where the
       // object address is somehow being computed by the multiply,
       // because our callers only care when the result is an
-      // identifibale object.
+      // identifiable object.
       if (U->getOpcode() != Instruction::Add ||
           (!isa<ConstantInt>(U->getOperand(1)) &&
            Operator::getOpcode(U->getOperand(1)) != Instruction::Mul))