Index: clang/include/clang/Analysis/CallGraph.h
===================================================================
--- clang/include/clang/Analysis/CallGraph.h
+++ clang/include/clang/Analysis/CallGraph.h
@@ -60,7 +60,7 @@
   ///
   /// Recursively walks the declaration to find all the dependent Decls as well.
   void addToCallGraph(Decl *D) {
-    TraverseDecl(D);
+    (void)TraverseDecl(D);
   }
 
   /// Determine if a declaration should be included in the graph.
Index: clang/lib/AST/ExprConstant.cpp
===================================================================
--- clang/lib/AST/ExprConstant.cpp
+++ clang/lib/AST/ExprConstant.cpp
@@ -16244,7 +16244,7 @@
   CallStackFrame Frame(Info, SourceLocation(), FD, /*This*/ nullptr, CallRef());
 
   APValue ResultScratch;
-  Evaluate(ResultScratch, Info, E);
+  (void)Evaluate(ResultScratch, Info, E);
   return Diags.empty();
 }
 
Index: clang/lib/ASTMatchers/ASTMatchFinder.cpp
===================================================================
--- clang/lib/ASTMatchers/ASTMatchFinder.cpp
+++ clang/lib/ASTMatchers/ASTMatchFinder.cpp
@@ -569,7 +569,7 @@
         if (LE->hasExplicitParameters()) {
           // Visit parameters.
           for (ParmVarDecl *Param : Proto.getParams())
-            TraverseDecl(Param);
+            (void)TraverseDecl(Param);
         }
 
         const auto *T = Proto.getTypePtr();
Index: clang/lib/Analysis/UnsafeBufferUsage.cpp
===================================================================
--- clang/lib/Analysis/UnsafeBufferUsage.cpp
+++ clang/lib/Analysis/UnsafeBufferUsage.cpp
@@ -44,7 +44,7 @@
   bool findMatch(const DynTypedNode &DynNode) {
     Matches = false;
     if (const Stmt *StmtNode = DynNode.get<Stmt>()) {
-      TraverseStmt(const_cast<Stmt *>(StmtNode));
+      (void)TraverseStmt(const_cast<Stmt *>(StmtNode));
       *Builder = ResultBindings;
       return Matches;
     }
Index: clang/lib/Format/TokenAnnotator.cpp
===================================================================
--- clang/lib/Format/TokenAnnotator.cpp
+++ clang/lib/Format/TokenAnnotator.cpp
@@ -1272,7 +1272,7 @@
         if (Next->is(tok::less))
           next();
         else
-          consumeToken();
+          (void)consumeToken();
         if (!CurrentToken)
           break;
         auto Previous = CurrentToken->getPreviousNonComment();
Index: clang/lib/Parse/ParseObjc.cpp
===================================================================
--- clang/lib/Parse/ParseObjc.cpp
+++ clang/lib/Parse/ParseObjc.cpp
@@ -3052,7 +3052,7 @@
     const Token &AfterNext = GetLookAheadToken(2);
     if (AfterNext.isOneOf(tok::colon, tok::r_square)) {
       if (Tok.is(tok::identifier))
-        TryAnnotateTypeOrScopeToken();
+        (void)TryAnnotateTypeOrScopeToken();
 
       return Tok.is(tok::annot_typename);
     }
Index: clang/lib/Parse/Parser.cpp
===================================================================
--- clang/lib/Parse/Parser.cpp
+++ clang/lib/Parse/Parser.cpp
@@ -1603,7 +1603,7 @@
     // Otherwise recover by skipping to next semi or mandatory function body.
     if (SkipUntil(tok::l_brace, StopAtSemi | StopBeforeMatch))
       break;
-    TryConsumeToken(tok::semi);
+    (void)TryConsumeToken(tok::semi);
   }
 
   // The actions module must verify that all arguments were declared.
Index: llvm/include/llvm/Demangle/ItaniumDemangle.h
===================================================================
--- llvm/include/llvm/Demangle/ItaniumDemangle.h
+++ llvm/include/llvm/Demangle/ItaniumDemangle.h
@@ -3333,7 +3333,7 @@
   if (consumeIf("dn"))
     return getDerived().parseDestructorName();
 
-  consumeIf("on");
+  (void)consumeIf("on");
 
   Node *Oper = getDerived().parseOperatorName(/*NameState=*/nullptr);
   if (Oper == nullptr)
@@ -3466,7 +3466,7 @@
 AbstractManglingParser<Alloc, Derived>::parseNumber(bool AllowNegative) {
   const char *Tmp = First;
   if (AllowNegative)
-    consumeIf('n');
+    (void)consumeIf('n');
   if (numLeft() == 0 || !std::isdigit(*First))
     return StringView();
   while (numLeft() != 0 && std::isdigit(*First))
@@ -3535,7 +3535,7 @@
       return nullptr;
   }
 
-  consumeIf("Dx"); // transaction safe
+  (void)consumeIf("Dx"); // transaction safe
 
   if (!consumeIf('F'))
     return nullptr;