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Diffstat (limited to 'include/llvm/IR/LegacyPassManager.h')
-rw-r--r-- | include/llvm/IR/LegacyPassManager.h | 111 |
1 files changed, 111 insertions, 0 deletions
diff --git a/include/llvm/IR/LegacyPassManager.h b/include/llvm/IR/LegacyPassManager.h new file mode 100644 index 0000000..fa1436e --- /dev/null +++ b/include/llvm/IR/LegacyPassManager.h @@ -0,0 +1,111 @@ +//===- LegacyPassManager.h - Legacy 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 legacy 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. +// +//===----------------------------------------------------------------------===// + +#ifndef LLVM_IR_LEGACYPASSMANAGER_H +#define LLVM_IR_LEGACYPASSMANAGER_H + +#include "llvm/Pass.h" +#include "llvm/Support/CBindingWrapping.h" + +namespace llvm { + +class Pass; +class Module; + +namespace legacy { + +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(); + + /// 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 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; +}; + +} // End legacy namespace + +// Create wrappers for C Binding types (see CBindingWrapping.h). +DEFINE_STDCXX_CONVERSION_FUNCTIONS(legacy::PassManagerBase, LLVMPassManagerRef) + +} // End llvm namespace + +#endif |