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070d532aaf
Since removeRegistrationListener is no longer called during static destruction, we can get rid of the pimpl in PassRegistry. This should clean up the code somewhat, increase clarity, and also allows us to put the Lock as a member of the class, instead of as a ManagedStatic. As part of this change, the PassInfo class is moved from PassSupport.h to its own file, to eliminate the otherwise circular header dependency between PassRegistry.h and PassSupport.h Reviewed by: rnk, dblaikie Differential Revision: http://reviews.llvm.org/D4107 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210793 91177308-0d34-0410-b5e6-96231b3b80d8
111 lines
4.2 KiB
C++
111 lines
4.2 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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/// AnalysisGroupInfo - Keep track of information for each analysis group.
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struct AnalysisGroupInfo {
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SmallPtrSet<const PassInfo *, 8> Implementations;
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};
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DenseMap<const PassInfo*, AnalysisGroupInfo> AnalysisGroupInfoMap;
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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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/// registerPass - Unregister a pass (by means of its PassInfo) with the
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/// registry.
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void unregisterPass(const PassInfo &PI);
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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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