diff --git a/llvm/lib/CodeGen/AggressiveAntiDepBreaker.h b/llvm/lib/CodeGen/AggressiveAntiDepBreaker.h
index f9544dd1bee2..18c8bb591c1c 100644
--- a/llvm/lib/CodeGen/AggressiveAntiDepBreaker.h
+++ b/llvm/lib/CodeGen/AggressiveAntiDepBreaker.h
@@ -63,11 +63,11 @@ class RegisterClassInfo;
     /// Map registers to all their references within a live range.
     std::multimap<unsigned, RegisterReference> RegRefs;
 
-    /// The index of the most recent kill (proceding bottom-up),
+    /// The index of the most recent kill (proceeding bottom-up),
     /// or ~0u if the register is not live.
     std::vector<unsigned> KillIndices;
 
-    /// The index of the most recent complete def (proceding bottom
+    /// The index of the most recent complete def (proceeding bottom
     /// up), or ~0u if the register is live.
     std::vector<unsigned> DefIndices;