112 lines
3.6 KiB
C++
112 lines
3.6 KiB
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 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 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);
|
|
|
|
private:
|
|
/// addImpl - Add a pass to the queue of passes to run, without
|
|
/// checking whether to add a printer pass.
|
|
void addImpl(Pass *P);
|
|
|
|
/// 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. (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 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:
|
|
/// addImpl - Add a pass to the queue of passes to run, without
|
|
/// checking whether to add a printer pass.
|
|
void addImpl(Pass *P);
|
|
|
|
FunctionPassManagerImpl *FPM;
|
|
Module *M;
|
|
};
|
|
|
|
} // End llvm namespace
|
|
|
|
#endif
|