Initial Commit

thirdparty/capstone/suite/synctools/tablegen/include/llvm/IR/AutoUpgrade.h

@@ -0,0 +1,103 @@
+//===- AutoUpgrade.h - AutoUpgrade Helpers ----------------------*- 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
+//
+//===----------------------------------------------------------------------===//
+//
+//  These functions are implemented by lib/IR/AutoUpgrade.cpp.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_IR_AUTOUPGRADE_H
+#define LLVM_IR_AUTOUPGRADE_H
+
+#include "llvm/ADT/StringRef.h"
+
+namespace llvm {
+  class AttrBuilder;
+  class CallInst;
+  class Constant;
+  class Function;
+  class Instruction;
+  class MDNode;
+  class Module;
+  class GlobalVariable;
+  class Type;
+  class Value;
+
+  /// This is a more granular function that simply checks an intrinsic function
+  /// for upgrading, and returns true if it requires upgrading. It may return
+  /// null in NewFn if the all calls to the original intrinsic function
+  /// should be transformed to non-function-call instructions.
+  bool UpgradeIntrinsicFunction(Function *F, Function *&NewFn);
+
+  /// This is the complement to the above, replacing a specific call to an
+  /// intrinsic function with a call to the specified new function.
+  void UpgradeIntrinsicCall(CallInst *CI, Function *NewFn);
+
+  // This upgrades the comment for objc retain release markers in inline asm
+  // calls
+  void UpgradeInlineAsmString(std::string *AsmStr);
+
+  /// This is an auto-upgrade hook for any old intrinsic function syntaxes
+  /// which need to have both the function updated as well as all calls updated
+  /// to the new function. This should only be run in a post-processing fashion
+  /// so that it can update all calls to the old function.
+  void UpgradeCallsToIntrinsic(Function* F);
+
+  /// This checks for global variables which should be upgraded. It is requires
+  /// upgrading, returns a pointer to the upgraded variable.
+  GlobalVariable *UpgradeGlobalVariable(GlobalVariable *GV);
+
+  /// This checks for module flags which should be upgraded. It returns true if
+  /// module is modified.
+  bool UpgradeModuleFlags(Module &M);
+
+  /// Convert calls to ARC runtime functions to intrinsic calls and upgrade the
+  /// old retain release marker to new module flag format.
+  void UpgradeARCRuntime(Module &M);
+
+  void UpgradeSectionAttributes(Module &M);
+
+  /// Correct any IR that is relying on old function attribute behavior.
+  void UpgradeFunctionAttributes(Function &F);
+
+  /// If the given TBAA tag uses the scalar TBAA format, create a new node
+  /// corresponding to the upgrade to the struct-path aware TBAA format.
+  /// Otherwise return the \p TBAANode itself.
+  MDNode *UpgradeTBAANode(MDNode &TBAANode);
+
+  /// This is an auto-upgrade for bitcast between pointers with different
+  /// address spaces: the instruction is replaced by a pair ptrtoint+inttoptr.
+  Instruction *UpgradeBitCastInst(unsigned Opc, Value *V, Type *DestTy,
+                                  Instruction *&Temp);
+
+  /// This is an auto-upgrade for bitcast constant expression between pointers
+  /// with different address spaces: the instruction is replaced by a pair
+  /// ptrtoint+inttoptr.
+  Value *UpgradeBitCastExpr(unsigned Opc, Constant *C, Type *DestTy);
+
+  /// Check the debug info version number, if it is out-dated, drop the debug
+  /// info. Return true if module is modified.
+  bool UpgradeDebugInfo(Module &M);
+
+  /// Check whether a string looks like an old loop attachment tag.
+  inline bool mayBeOldLoopAttachmentTag(StringRef Name) {
+    return Name.startswith("llvm.vectorizer.");
+  }
+
+  /// Upgrade the loop attachment metadata node.
+  MDNode *upgradeInstructionLoopAttachment(MDNode &N);
+
+  /// Upgrade the datalayout string by adding a section for address space
+  /// pointers.
+  std::string UpgradeDataLayoutString(StringRef DL, StringRef Triple);
+
+  /// Upgrade attributes that changed format or kind.
+  void UpgradeAttributes(AttrBuilder &B);
+
+} // End llvm namespace
+
+#endif