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	group's interface to all of the implementations of that analysis group. The groups themselves can and do manage this anyways, the pass registry needn't involve itself. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@219097 91177308-0d34-0410-b5e6-96231b3b80d8
		
			
				
	
	
		
			101 lines
		
	
	
		
			3.8 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			101 lines
		
	
	
		
			3.8 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
//===- llvm/PassRegistry.h - Pass Information Registry ----------*- C++ -*-===//
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//
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//                     The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file defines PassRegistry, a class that is used in the initialization
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// and registration of passes.  At application startup, passes are registered
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// with the PassRegistry, which is later provided to the PassManager for 
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// dependency resolution and similar tasks.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_PASSREGISTRY_H
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#define LLVM_PASSREGISTRY_H
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#include "llvm-c/Core.h"
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#include "llvm/ADT/DenseMap.h"
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#include "llvm/ADT/SmallPtrSet.h"
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#include "llvm/ADT/StringMap.h"
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#include "llvm/ADT/StringRef.h"
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#include "llvm/PassInfo.h"
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#include "llvm/Support/CBindingWrapping.h"
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#include "llvm/Support/RWMutex.h"
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#include <vector>
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namespace llvm {
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class PassInfo;
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struct PassRegistrationListener;
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/// PassRegistry - This class manages the registration and intitialization of
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/// the pass subsystem as application startup, and assists the PassManager
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/// in resolving pass dependencies.
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/// NOTE: PassRegistry is NOT thread-safe.  If you want to use LLVM on multiple
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/// threads simultaneously, you will need to use a separate PassRegistry on
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/// each thread.
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class PassRegistry {
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  mutable sys::SmartRWMutex<true> Lock;
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  /// PassInfoMap - Keep track of the PassInfo object for each registered pass.
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  typedef DenseMap<const void *, const PassInfo *> MapType;
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  MapType PassInfoMap;
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  typedef StringMap<const PassInfo *> StringMapType;
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  StringMapType PassInfoStringMap;
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  std::vector<std::unique_ptr<const PassInfo>> ToFree;
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  std::vector<PassRegistrationListener *> Listeners;
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public:
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  PassRegistry() {}
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  ~PassRegistry();
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  /// getPassRegistry - Access the global registry object, which is
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  /// automatically initialized at application launch and destroyed by
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  /// llvm_shutdown.
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  static PassRegistry *getPassRegistry();
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  /// getPassInfo - Look up a pass' corresponding PassInfo, indexed by the pass'
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  /// type identifier (&MyPass::ID).
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  const PassInfo *getPassInfo(const void *TI) const;
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  /// getPassInfo - Look up a pass' corresponding PassInfo, indexed by the pass'
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  /// argument string.
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  const PassInfo *getPassInfo(StringRef Arg) const;
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  /// registerPass - Register a pass (by means of its PassInfo) with the
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  /// registry.  Required in order to use the pass with a PassManager.
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  void registerPass(const PassInfo &PI, bool ShouldFree = false);
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  /// registerAnalysisGroup - Register an analysis group (or a pass implementing
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  // an analysis group) with the registry.  Like registerPass, this is required
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  // in order for a PassManager to be able to use this group/pass.
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  void registerAnalysisGroup(const void *InterfaceID, const void *PassID,
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                             PassInfo &Registeree, bool isDefault,
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                             bool ShouldFree = false);
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  /// enumerateWith - Enumerate the registered passes, calling the provided
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  /// PassRegistrationListener's passEnumerate() callback on each of them.
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  void enumerateWith(PassRegistrationListener *L);
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  /// addRegistrationListener - Register the given PassRegistrationListener
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  /// to receive passRegistered() callbacks whenever a new pass is registered.
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  void addRegistrationListener(PassRegistrationListener *L);
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  /// removeRegistrationListener - Unregister a PassRegistrationListener so that
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  /// it no longer receives passRegistered() callbacks.
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  void removeRegistrationListener(PassRegistrationListener *L);
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};
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// Create wrappers for C Binding types (see CBindingWrapping.h).
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DEFINE_STDCXX_CONVERSION_FUNCTIONS(PassRegistry, LLVMPassRegistryRef)
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}
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#endif
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