-//===- llvm/PassManager.h - Container for Passes -----------------*- C++ -*--=//
+//===- llvm/PassManager.h - Container for Passes ----------------*- C++ -*-===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
//
// This file defines the PassManager class. This class is used to hold,
-// maintain, and optimize execution of Pass's. The PassManager class ensures
+// maintain, and optimize execution of Passes. The PassManager class ensures
// that analysis results are available before a pass runs, and that Pass's are
// destroyed when the PassManager is destroyed.
//
#ifndef LLVM_PASSMANAGER_H
#define LLVM_PASSMANAGER_H
+#include "llvm/Pass.h"
+
+namespace llvm {
+
class Pass;
+class ModulePass;
class Module;
-template<class UnitType> class PassManagerT;
+class ModuleProvider;
+
+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;
+};
-class PassManager {
- PassManagerT<Module> *PM; // This is a straightforward Pimpl class
+/// 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'.
- //
+ /// 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);
+
+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 provider.
+ explicit FunctionPassManager(ModuleProvider *P);
+ ~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. (TODO delete passes.)
+ /// 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 functions modifies the program, and if so, return true.
- //
- bool run(Module *M);
+ /// 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();
+
+ /// getModuleProvider - Return the module provider that this passmanager is
+ /// currently using. This is the module provider that it uses when a function
+ /// is optimized that is non-resident in the module.
+ ModuleProvider *getModuleProvider() const { return MP; }
+ void setModuleProvider(ModuleProvider *NewMP) { MP = NewMP; }
+
+private:
+ FunctionPassManagerImpl *FPM;
+ ModuleProvider *MP;
};
+} // End llvm namespace
+
#endif