PR14492: Debug Info: Support for values of non-integer non-type template parameters.

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

diff --git a/include/llvm/PassManager.h b/include/llvm/PassManager.h
index ae603b1828dcee205f8bc8591fe4e76db9d7ee53..b6a8186a4e809b2049b01bfcdf143cd9778bfb65 100644 (file)
--- a/include/llvm/PassManager.h
+++ b/include/llvm/PassManager.h
@@ -1,7 +1,14 @@
-//===- 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.
 //
@@ -10,13 +17,35 @@
 #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();
 
@@ -24,13 +53,55 @@ 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 functions modifies the program, and if so, return true.
-  ///
+  /// 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.
+  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.
+  /// 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:
+  FunctionPassManagerImpl *FPM;
+  Module *M;
 };
 
+// Create wrappers for C Binding types (see CBindingWrapping.h).
+DEFINE_STDCXX_CONVERSION_FUNCTIONS(PassManagerBase, LLVMPassManagerRef)
+
+} // End llvm namespace
+
 #endif