Re-commit r247216: "Fix Clang-tidy misc-use-override warnings, other minor fixes"

Except the changes that defined virtual destructors as =default, because that
ran into problems with GCC 4.7 and overriding methods that weren't noexcept.

llvm-svn: 247298

1 files changed, 3 insertions, 4 deletions

diff --git a/llvm/lib/Transforms/Instrumentation/SafeStack.cpp b/llvm/lib/Transforms/Instrumentation/SafeStack.cpp
index 0ea61e439c5..cf68653afc6 100644
--- a/llvm/lib/Transforms/Instrumentation/SafeStack.cpp
+++ b/llvm/lib/Transforms/Instrumentation/SafeStack.cpp
@@ -220,11 +220,11 @@ public:
     initializeSafeStackPass(*PassRegistry::getPassRegistry());
   }
 
-  virtual void getAnalysisUsage(AnalysisUsage &AU) const {
+  void getAnalysisUsage(AnalysisUsage &AU) const override {
     AU.addRequired<AAResultsWrapperPass>();
   }
 
-  virtual bool doInitialization(Module &M) {
+  bool doInitialization(Module &M) override {
     DL = &M.getDataLayout();
 
     StackPtrTy = Type::getInt8PtrTy(M.getContext());
@@ -235,8 +235,7 @@ public:
     return false;
   }
 
-  bool runOnFunction(Function &F);
-
+  bool runOnFunction(Function &F) override;
 }; // class SafeStack
 
 Constant *SafeStack::getOrCreateUnsafeStackPtr(Module &M) {