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

1 files changed, 120 insertions, 0 deletions

diff --git a/clang-r353983/include/llvm/PassInfo.h b/clang-r353983/include/llvm/PassInfo.h
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+++ b/clang-r353983/include/llvm/PassInfo.h
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+//===- llvm/PassInfo.h - Pass Info class ------------------------*- 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 and implements the PassInfo class.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_PASSINFO_H
+#define LLVM_PASSINFO_H
+
+#include "llvm/ADT/StringRef.h"
+#include <cassert>
+#include <vector>
+
+namespace llvm {
+
+class Pass;
+
+//===---------------------------------------------------------------------------
+/// PassInfo class - An instance of this class exists for every pass known by
+/// the system, and can be obtained from a live Pass by calling its
+/// getPassInfo() method.  These objects are set up by the RegisterPass<>
+/// template.
+///
+class PassInfo {
+public:
+  using NormalCtor_t = Pass* (*)();
+
+private:
+  StringRef PassName;     // Nice name for Pass
+  StringRef PassArgument; // Command Line argument to run this pass
+  const void *PassID;
+  const bool IsCFGOnlyPass = false;      // Pass only looks at the CFG.
+  const bool IsAnalysis;                 // True if an analysis pass.
+  const bool IsAnalysisGroup;            // True if an analysis group.
+  std::vector<const PassInfo *> ItfImpl; // Interfaces implemented by this pass
+  NormalCtor_t NormalCtor = nullptr;
+
+public:
+  /// PassInfo ctor - Do not call this directly, this should only be invoked
+  /// through RegisterPass.
+  PassInfo(StringRef name, StringRef arg, const void *pi, NormalCtor_t normal,
+           bool isCFGOnly, bool is_analysis)
+      : PassName(name), PassArgument(arg), PassID(pi), IsCFGOnlyPass(isCFGOnly),
+        IsAnalysis(is_analysis), IsAnalysisGroup(false), NormalCtor(normal) {}
+
+  /// PassInfo ctor - Do not call this directly, this should only be invoked
+  /// through RegisterPass. This version is for use by analysis groups; it
+  /// does not auto-register the pass.
+  PassInfo(StringRef name, const void *pi)
+      : PassName(name), PassID(pi), IsAnalysis(false), IsAnalysisGroup(true) {}
+
+  PassInfo(const PassInfo &) = delete;
+  PassInfo &operator=(const PassInfo &) = delete;
+
+  /// getPassName - Return the friendly name for the pass, never returns null
+  StringRef getPassName() const { return PassName; }
+
+  /// getPassArgument - Return the command line option that may be passed to
+  /// 'opt' that will cause this pass to be run.  This will return null if there
+  /// is no argument.
+  StringRef getPassArgument() const { return PassArgument; }
+
+  /// getTypeInfo - Return the id object for the pass...
+  /// TODO : Rename
+  const void *getTypeInfo() const { return PassID; }
+
+  /// Return true if this PassID implements the specified ID pointer.
+  bool isPassID(const void *IDPtr) const { return PassID == IDPtr; }
+
+  /// isAnalysisGroup - Return true if this is an analysis group, not a normal
+  /// pass.
+  bool isAnalysisGroup() const { return IsAnalysisGroup; }
+  bool isAnalysis() const { return IsAnalysis; }
+
+  /// isCFGOnlyPass - return true if this pass only looks at the CFG for the
+  /// function.
+  bool isCFGOnlyPass() const { return IsCFGOnlyPass; }
+
+  /// getNormalCtor - Return a pointer to a function, that when called, creates
+  /// an instance of the pass and returns it.  This pointer may be null if there
+  /// is no default constructor for the pass.
+  NormalCtor_t getNormalCtor() const {
+    return NormalCtor;
+  }
+  void setNormalCtor(NormalCtor_t Ctor) {
+    NormalCtor = Ctor;
+  }
+
+  /// createPass() - Use this method to create an instance of this pass.
+  Pass *createPass() const {
+    assert((!isAnalysisGroup() || NormalCtor) &&
+           "No default implementation found for analysis group!");
+    assert(NormalCtor &&
+           "Cannot call createPass on PassInfo without default ctor!");
+    return NormalCtor();
+  }
+
+  /// addInterfaceImplemented - This method is called when this pass is
+  /// registered as a member of an analysis group with the RegisterAnalysisGroup
+  /// template.
+  void addInterfaceImplemented(const PassInfo *ItfPI) {
+    ItfImpl.push_back(ItfPI);
+  }
+
+  /// getInterfacesImplemented - Return a list of all of the analysis group
+  /// interfaces implemented by this pass.
+  const std::vector<const PassInfo*> &getInterfacesImplemented() const {
+    return ItfImpl;
+  }
+};
+
+} // end namespace llvm
+
+#endif // LLVM_PASSINFO_H