//
// 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.
//
//===----------------------------------------------------------------------===//
//
-// 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.
+// 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
-#include "llvm/Pass.h"
+#include "llvm/IR/LegacyPassManager.h"
namespace llvm {
-class Pass;
-class ModulePass;
-class Module;
-class ModuleProvider;
-class ModulePassManager;
-class FunctionPassManagerT;
-class BasicBlockPassManager;
-
-class PassManager {
- ModulePassManager *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 {
- FunctionPassManagerT *PM; // This is a straightforward Pimpl class
- ModuleProvider *MP;
-public:
- FunctionPassManager(ModuleProvider *P);
- ~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);
-
- /// doInitialization - Run all of the initializers for the function passes.
- ///
- bool doInitialization();
-
- /// 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);
-
- /// doFinalization - Run all of the initializers for the function passes.
- ///
- bool doFinalization();
-};
-
-class ModulePassManager_New;
-class PassManagerImpl_New;
-class FunctionPassManagerImpl_New;
-
-/// PassManager_New manages ModulePassManagers
-class PassManager_New {
-
-public:
-
- PassManager_New();
- ~PassManager_New();
-
- /// 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);
-
-private:
-
- /// PassManagerImpl_New is the actual class. PassManager_New is just the
- /// wraper to publish simple pass manager interface
- PassManagerImpl_New *PM;
-
-};
-
-/// FunctionPassManager_New manages FunctionPasses and BasicBlockPassManagers.
-class FunctionPassManager_New {
-public:
- FunctionPassManager_New(ModuleProvider *P);
- FunctionPassManager_New();
- ~FunctionPassManager_New();
-
- /// 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. (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 &F);
-
- /// doInitialization - Run all of the initializers for the function passes.
- ///
- bool doInitialization();
-
- /// doFinalization - Run all of the initializers for the function passes.
- ///
- bool doFinalization();
-private:
-
- FunctionPassManagerImpl_New *FPM;
- ModuleProvider *MP;
-};
-
+// 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;
-} // End llvm namespace
+}
#endif
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