Use returns_nonnull in BumpPtrAllocator and MallocAllocator to avoid null-check in...

[oota-llvm.git] / include / llvm / PassRegistry.h

diff --git a/include/llvm/PassRegistry.h b/include/llvm/PassRegistry.h
index 8c1be67069fcb595dd1cbb937ecf0563162e1246..1558c51bde481f7dd4644f5dc6b2c4d8a2021558 100644 (file)
--- a/include/llvm/PassRegistry.h
+++ b/include/llvm/PassRegistry.h
@@ -17,8 +17,15 @@
 #ifndef LLVM_PASSREGISTRY_H
 #define LLVM_PASSREGISTRY_H
 
+#include "llvm-c/Core.h"
+#include "llvm/ADT/DenseMap.h"
+#include "llvm/ADT/SmallPtrSet.h"
 #include "llvm/ADT/StringMap.h"
-#include "llvm/System/DataTypes.h"
+#include "llvm/ADT/StringRef.h"
+#include "llvm/PassInfo.h"
+#include "llvm/Support/CBindingWrapping.h"
+#include "llvm/Support/RWMutex.h"
+#include <vector>
 
 namespace llvm {
 
@@ -32,27 +39,72 @@ struct PassRegistrationListener;
 /// threads simultaneously, you will need to use a separate PassRegistry on
 /// each thread.
 class PassRegistry {
-  mutable void *pImpl;
-  void *getImpl() const;
+  mutable sys::SmartRWMutex<true> Lock;
+
+  /// PassInfoMap - Keep track of the PassInfo object for each registered pass.
+  typedef DenseMap<const void*, const PassInfo*> MapType;
+  MapType PassInfoMap;
+  
+  typedef StringMap<const PassInfo*> StringMapType;
+  StringMapType PassInfoStringMap;
+  
+  /// AnalysisGroupInfo - Keep track of information for each analysis group.
+  struct AnalysisGroupInfo {
+    SmallPtrSet<const PassInfo *, 8> Implementations;
+  };
+  DenseMap<const PassInfo*, AnalysisGroupInfo> AnalysisGroupInfoMap;
+  
+  std::vector<std::unique_ptr<const PassInfo>> ToFree;
+  std::vector<PassRegistrationListener*> Listeners;
    
 public:
+  PassRegistry() { }
+  ~PassRegistry();
+  
+  /// getPassRegistry - Access the global registry object, which is 
+  /// automatically initialized at application launch and destroyed by
+  /// llvm_shutdown.
   static PassRegistry *getPassRegistry();
   
+  /// getPassInfo - Look up a pass' corresponding PassInfo, indexed by the pass'
+  /// type identifier (&MyPass::ID).
   const PassInfo *getPassInfo(const void *TI) const;
+  
+  /// getPassInfo - Look up a pass' corresponding PassInfo, indexed by the pass'
+  /// argument string.
   const PassInfo *getPassInfo(StringRef Arg) const;
   
-  void registerPass(const PassInfo &PI);
+  /// registerPass - Register a pass (by means of its PassInfo) with the 
+  /// registry.  Required in order to use the pass with a PassManager.
+  void registerPass(const PassInfo &PI, bool ShouldFree = false);
+  
+  /// registerPass - Unregister a pass (by means of its PassInfo) with the 
+  /// registry.
   void unregisterPass(const PassInfo &PI);
   
-  /// Analysis Group Mechanisms.
+  /// registerAnalysisGroup - Register an analysis group (or a pass implementing
+  // an analysis group) with the registry.  Like registerPass, this is required 
+  // in order for a PassManager to be able to use this group/pass.
   void registerAnalysisGroup(const void *InterfaceID, const void *PassID,
-                             PassInfo& Registeree, bool isDefault);
+                             PassInfo& Registeree, bool isDefault,
+                             bool ShouldFree = false);
   
+  /// enumerateWith - Enumerate the registered passes, calling the provided
+  /// PassRegistrationListener's passEnumerate() callback on each of them.
   void enumerateWith(PassRegistrationListener *L);
+  
+  /// addRegistrationListener - Register the given PassRegistrationListener
+  /// to receive passRegistered() callbacks whenever a new pass is registered.
   void addRegistrationListener(PassRegistrationListener *L);
+  
+  /// removeRegistrationListener - Unregister a PassRegistrationListener so that
+  /// it no longer receives passRegistered() callbacks.
   void removeRegistrationListener(PassRegistrationListener *L);
 };
 
+// Create wrappers for C Binding types (see CBindingWrapping.h).
+DEFINE_STDCXX_CONVERSION_FUNCTIONS(PassRegistry, LLVMPassRegistryRef)
+
 }
 
 #endif