-class Pass;
-class Module;
-
-class PassManagerImpl;
-class FunctionPassManagerImpl;
-
-/// PassManagerBase - An abstract interface to allow code to add passes to
-/// a pass manager without having to hard-code what kind of pass manager
-/// it is.
-class PassManagerBase {
-public:
- virtual ~PassManagerBase();
-
- /// add - Add a pass to the queue of passes to run. This passes ownership of
- /// the Pass to the PassManager. When the PassManager is destroyed, the pass
- /// will be destroyed as well, so there is no need to delete the pass. This
- /// implies that all passes MUST be allocated with 'new'.
- virtual void add(Pass *P) = 0;
-};
-
-/// PassManager manages ModulePassManagers
-class PassManager : public PassManagerBase {
-public:
-
- PassManager();
- ~PassManager();
-
- /// add - Add a pass to the queue of passes to run. This passes ownership of
- /// the Pass to the PassManager. When the PassManager is destroyed, the pass
- /// will be destroyed as well, so there is no need to delete the pass. This
- /// implies that all passes MUST be allocated with 'new'.
- void add(Pass *P);
-
- /// run - Execute all of the passes scheduled for execution. Keep track of
- /// whether any of the passes modifies the module, and if so, return true.
- bool run(Module &M);
-
- /// doInitialization - Run all of the initializers for the module passes.
- ///
- bool doInitialization();
-
- /// doFinalization - Run all of the finalizers for the module passes.
- ///
- bool doFinalization();
-
-private:
- /// PassManagerImpl_New is the actual class. PassManager is just the
- /// wraper to publish simple pass manager interface
- PassManagerImpl *PM;
-};
-
-/// FunctionPassManager manages FunctionPasses and BasicBlockPassManagers.
-class FunctionPassManager : public PassManagerBase {
-public:
- /// FunctionPassManager ctor - This initializes the pass manager. It needs,
- /// but does not take ownership of, the specified Module.
- explicit FunctionPassManager(Module *M);
- ~FunctionPassManager();
-
- /// add - Add a pass to the queue of passes to run. This passes
- /// ownership of the Pass to the PassManager. When the
- /// PassManager_X is destroyed, the pass will be destroyed as well, so
- /// there is no need to delete the pass.
- /// This implies that all passes MUST be allocated with 'new'.
- void add(Pass *P);
-
- /// run - Execute all of the passes scheduled for execution. Keep
- /// track of whether any of the passes modifies the function, and if
- /// so, return true.
- ///
- bool run(Function &F);
-
- /// doInitialization - Run all of the initializers for the function passes.
- ///
- bool doInitialization();
-
- /// doFinalization - Run all of the finalizers for the function passes.
- ///
- bool doFinalization();
-
-private:
- FunctionPassManagerImpl *FPM;
- Module *M;
-};