X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=include%2Fllvm%2FPassManager.h;h=2a191b339931a80b222fb7d35fbb1208e7b81193;hb=65c98b9da474d0562f883d6001f31ba5b2b95183;hp=64499ca8bd5da503bd2899bd9d393b46002dc964;hpb=50f7129324cf192e5c4f2f5ed0b9446596823d0d;p=oota-llvm.git

diff --git a/include/llvm/PassManager.h b/include/llvm/PassManager.h
index 64499ca8bd5..2a191b33993 100644
--- a/include/llvm/PassManager.h
+++ b/include/llvm/PassManager.h
@@ -1,66 +1,39 @@
 //===- llvm/PassManager.h - Container for Passes ----------------*- C++ -*-===//
 //
-// 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.
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This is a legacy redirect header for the old PassManager. It is intended to
+// be used by clients that have not been converted to be aware of the new pass
+// management infrastructure being built for LLVM, which is every client
+// initially. Eventually this header (and the legacy management layer) will go
+// away, but we want to minimize changes to out-of-tree users of LLVM in the
+// interim.
+//
+// Note that this header *must not* be included into the same file as the new
+// pass management infrastructure is included. Things will break spectacularly.
+// If you are starting that conversion, you should switch to explicitly
+// including LegacyPassManager.h and using the legacy namespace.
 //
 //===----------------------------------------------------------------------===//
 
 #ifndef LLVM_PASSMANAGER_H
 #define LLVM_PASSMANAGER_H
 
-class Pass;
-class Module;
-template<class UnitType> class PassManagerT;
-
-class PassManager {
-  PassManagerT<Module> *PM;    // This is a straightforward Pimpl class
-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);
-};
-
-class FunctionPass;
-class ImmutablePass;
-class Function;
-
-class FunctionPassManager {
-  PassManagerT<Function> *PM;    // This is a straightforward Pimpl class
-public:
-  FunctionPassManager();
-  ~FunctionPassManager();
+#include "llvm/IR/LegacyPassManager.h"
 
-  /// 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);
+namespace llvm {
 
-  /// add - ImmutablePasses are not FunctionPasses, so we have a 
-  /// special hack to get them into a FunctionPassManager.
-  ///
-  void add(ImmutablePass *IP);
+// Pull these into the llvm namespace so that existing code that expects it
+// there can find it.
+using legacy::PassManagerBase;
+using legacy::PassManager;
+using legacy::FunctionPassManager;
 
-  /// 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);
-};
+}
 
 #endif