+/// \brief Trivial adaptor that maps from a module to its functions.
+///
+/// Designed to allow composition of a FunctionPass(Manager) and a
+/// ModulePassManager.
+template <typename FunctionPassT>
+class ModuleToFunctionPassAdaptor {
+public:
+ explicit ModuleToFunctionPassAdaptor(FunctionPassT Pass)
+ : Pass(llvm_move(Pass)) {}
+
+ /// \brief Runs the function pass across every function in the module.
+ bool run(Module *M) {
+ bool Changed = false;
+ for (Module::iterator I = M->begin(), E = M->end(); I != E; ++I)
+ Changed |= Pass.run(I);
+ return Changed;
+ }
+
+private:
+ FunctionPassT Pass;
+};
+
+/// \brief A function to deduce a function pass type and wrap it in the
+/// templated adaptor.
+template <typename FunctionPassT>
+ModuleToFunctionPassAdaptor<FunctionPassT>
+createModuleToFunctionPassAdaptor(FunctionPassT Pass) {
+ return ModuleToFunctionPassAdaptor<FunctionPassT>(llvm_move(Pass));
+}
+