diff --git a/include/llvm/ADT/ImmutableSet.h b/include/llvm/ADT/ImmutableSet.h
index 65e70e279ab..70c3caf2a06 100644
--- a/include/llvm/ADT/ImmutableSet.h
+++ b/include/llvm/ADT/ImmutableSet.h
@@ -189,6 +189,8 @@ public:
   unsigned verify() const {
     unsigned HL = getLeft() ? getLeft()->verify() : 0;
     unsigned HR = getRight() ? getRight()->verify() : 0;
+    (void) HL;
+    (void) HR;
 
     assert(getHeight() == ( HL > HR ? HL : HR ) + 1
             && "Height calculation wrong");
diff --git a/utils/unittest/googletest/include/gtest/internal/gtest-linked_ptr.h b/utils/unittest/googletest/include/gtest/internal/gtest-linked_ptr.h
index f98af0b123b..d4c7a39b0ec 100644
--- a/utils/unittest/googletest/include/gtest/internal/gtest-linked_ptr.h
+++ b/utils/unittest/googletest/include/gtest/internal/gtest-linked_ptr.h
@@ -176,6 +176,7 @@ class linked_ptr {
   // Sole ownership by this linked_ptr object is required.
   T* release() {
     bool last = link_.depart();
+    (void) last;
     assert(last);
     T* v = value_;
     value_ = NULL;