Merge "Update prebuilt Clang to r353983." into p9.0HEADp9.0-backupp9.0

1 files changed, 97 insertions, 0 deletions

diff --git a/clang-r353983/include/llvm/PassRegistry.h b/clang-r353983/include/llvm/PassRegistry.h
new file mode 100644
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+++ b/clang-r353983/include/llvm/PassRegistry.h
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+//===- llvm/PassRegistry.h - Pass Information Registry ----------*- C++ -*-===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+//
+// This file defines PassRegistry, a class that is used in the initialization
+// and registration of passes.  At application startup, passes are registered
+// with the PassRegistry, which is later provided to the PassManager for
+// dependency resolution and similar tasks.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_PASSREGISTRY_H
+#define LLVM_PASSREGISTRY_H
+
+#include "llvm/ADT/DenseMap.h"
+#include "llvm/ADT/StringMap.h"
+#include "llvm/ADT/StringRef.h"
+#include "llvm/Support/CBindingWrapping.h"
+#include "llvm/Support/RWMutex.h"
+#include <memory>
+#include <vector>
+
+namespace llvm {
+
+class PassInfo;
+struct PassRegistrationListener;
+
+/// PassRegistry - This class manages the registration and intitialization of
+/// the pass subsystem as application startup, and assists the PassManager
+/// in resolving pass dependencies.
+/// NOTE: PassRegistry is NOT thread-safe.  If you want to use LLVM on multiple
+/// threads simultaneously, you will need to use a separate PassRegistry on
+/// each thread.
+class PassRegistry {
+  mutable sys::SmartRWMutex<true> Lock;
+
+  /// PassInfoMap - Keep track of the PassInfo object for each registered pass.
+  using MapType = DenseMap<const void *, const PassInfo *>;
+  MapType PassInfoMap;
+
+  using StringMapType = StringMap<const PassInfo *>;
+  StringMapType PassInfoStringMap;
+
+  std::vector<std::unique_ptr<const PassInfo>> ToFree;
+  std::vector<PassRegistrationListener *> Listeners;
+
+public:
+  PassRegistry() = default;
+  ~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;
+
+  /// 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);
+
+  /// 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,
+                             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)
+
+} // end namespace llvm
+
+#endif // LLVM_PASSREGISTRY_H