X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=include%2Fllvm%2FPassManager.h;h=8de0f8342d785fef66d3591c227417f5a243c15b;hb=54cc2efb4e6ba3022ec297746b14a129d97fc07b;hp=367809e5cce54b55e2160b4bf6a1af4665521543;hpb=48486893f46d2e12e926682a3ecb908716bc66c4;p=oota-llvm.git

diff --git a/include/llvm/PassManager.h b/include/llvm/PassManager.h
index 367809e5cce..8de0f8342d7 100644
--- a/include/llvm/PassManager.h
+++ b/include/llvm/PassManager.h
@@ -1,5 +1,12 @@
 //===- 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
@@ -10,13 +17,35 @@
 #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 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();
 
@@ -24,43 +53,60 @@ public:
   /// 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:
+  /// addImpl - Add a pass to the queue of passes to run, without
+  /// checking whether to add a printer pass.
+  void addImpl(Pass *P);
 
-class FunctionPassManager {
-  PassManagerT<Function> *PM;    // This is a straightforward Pimpl class
+  /// 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();
+  /// 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. (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 &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:
+  /// 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