//===- 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 Passes. The PassManager class ensures
// that analysis results are available before a pass runs, and that Pass's are
#ifndef LLVM_PASSMANAGER_H
#define LLVM_PASSMANAGER_H
+#include "llvm/Pass.h"
+#include "llvm/Support/CBindingWrapping.h"
+
+namespace llvm {
+
class Pass;
class Module;
-template<class UnitType> class PassManagerT;
-class PassManager {
- PassManagerT<Module> *PM; // This is a straightforward Pimpl class
+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();
/// 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);
-};
-class FunctionPass;
-class ImmutablePass;
-class Function;
+private:
+ /// PassManagerImpl_New is the actual class. PassManager is just the
+ /// wraper to publish simple pass manager interface
+ PassManagerImpl *PM;
+};
-class FunctionPassManager {
- PassManagerT<Function> *PM; // This is a straightforward Pimpl class
+/// FunctionPassManager manages FunctionPasses and BasicBlockPassManagers.
+class FunctionPassManager : public PassManagerBase {
public:
- FunctionPassManager();
+ /// 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 FunctionPass 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(FunctionPass *P);
-
- /// add - ImmutablePasses are not FunctionPasses, so we have a
- /// special hack to get them into a FunctionPassManager.
- ///
- void add(ImmutablePass *IP);
+ /// 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 &M);
+ 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;
};
+// Create wrappers for C Binding types (see CBindingWrapping.h).
+DEFINE_STDCXX_CONVERSION_FUNCTIONS(PassManagerBase, LLVMPassManagerRef)
+
+} // End llvm namespace
+
#endif