X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=include%2Fllvm%2FPassManager.h;h=2a191b339931a80b222fb7d35fbb1208e7b81193;hb=18510b7e431b5e8050f546edea904dcb43f46a48;hp=c012379b5ad90568d730348cb57bf0c20f74d98e;hpb=18961504fc2b299578dba817900a0696cf3ccc4d;p=oota-llvm.git

diff --git a/include/llvm/PassManager.h b/include/llvm/PassManager.h
index c012379b5ad..2a191b33993 100644
--- a/include/llvm/PassManager.h
+++ b/include/llvm/PassManager.h
@@ -1,36 +1,39 @@
-//===- llvm/PassManager.h - Container for Passes -----------------*- C++ -*--=//
+//===- llvm/PassManager.h - Container for Passes ----------------*- C++ -*-===//
 //
-// This file defines the PassManager class.  This class is used to hold,
-// maintain, and optimize execution of Pass's.  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;
+#include "llvm/IR/LegacyPassManager.h"
 
-class PassManager {
-  PassManagerT<Module> *PM;    // This is a straightforward Pimpl class
-public:
-  PassManager();
-  ~PassManager();
+namespace llvm {
 
-  // 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);
+// 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 functions modifies the program, and if so, return true.
-  //
-  bool run(Module &M);
-};
+}
 
 #endif