Introduce MCCodeGenInfo, which keeps information that can affect codegen

[oota-llvm.git] / include / llvm / PassManager.h

diff --git a/include/llvm/PassManager.h b/include/llvm/PassManager.h
index f1178e07d3b0953f6367ea8ab3dafdfec6669516..c8b5dcaf0f2dcc303d6c0658d804666765425795 100644 (file)
--- a/include/llvm/PassManager.h
+++ b/include/llvm/PassManager.h
@@ -2,8 +2,8 @@
 //
 //                     The LLVM Compiler Infrastructure
 //
-// This file was developed by the LLVM research group and is distributed under
-// the University of Illinois Open Source License. See LICENSE.TXT for details.
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
 //
 //===----------------------------------------------------------------------===//
 //
@@ -22,17 +22,27 @@
 namespace llvm {
 
 class Pass;
-class ModulePass;
 class Module;
-class ModuleProvider;
 
-class ModulePassManager;
 class PassManagerImpl;
 class FunctionPassManagerImpl;
 
-/// PassManager manages ModulePassManagers
-class PassManager {
+/// 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();
@@ -49,18 +59,21 @@ public:
   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 {
+class FunctionPassManager : public PassManagerBase {
 public:
-  FunctionPassManager(ModuleProvider *P);
-  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
@@ -80,13 +93,17 @@ public:
   ///
   bool doInitialization();
   
-  /// doFinalization - Run all of the initializers for the function passes.
+  /// doFinalization - Run all of the finalizers for the function passes.
   ///
   bool doFinalization();
-private:
   
+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;
-  ModuleProvider *MP;
+  Module *M;
 };
 
 } // End llvm namespace