Coverage Report

Created: 2019-07-24 05:18

/Users/buildslave/jenkins/workspace/clang-stage2-coverage-R/llvm/include/llvm/IR/AutoUpgrade.h
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//===- AutoUpgrade.h - AutoUpgrade Helpers ----------------------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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//  These functions are implemented by lib/IR/AutoUpgrade.cpp.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_IR_AUTOUPGRADE_H
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#define LLVM_IR_AUTOUPGRADE_H
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#include "llvm/ADT/StringRef.h"
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namespace llvm {
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  class CallInst;
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  class Constant;
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  class Function;
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  class Instruction;
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  class MDNode;
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  class Module;
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  class GlobalVariable;
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  class Type;
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  class Value;
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  /// This is a more granular function that simply checks an intrinsic function
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  /// for upgrading, and returns true if it requires upgrading. It may return
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  /// null in NewFn if the all calls to the original intrinsic function
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  /// should be transformed to non-function-call instructions.
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  bool UpgradeIntrinsicFunction(Function *F, Function *&NewFn);
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  /// This is the complement to the above, replacing a specific call to an
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  /// intrinsic function with a call to the specified new function.
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  void UpgradeIntrinsicCall(CallInst *CI, Function *NewFn);
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  // This upgrades the comment for objc retain release markers in inline asm
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  // calls
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  void UpgradeInlineAsmString(std::string *AsmStr);
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  /// This is an auto-upgrade hook for any old intrinsic function syntaxes
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  /// which need to have both the function updated as well as all calls updated
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  /// to the new function. This should only be run in a post-processing fashion
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  /// so that it can update all calls to the old function.
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  void UpgradeCallsToIntrinsic(Function* F);
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  /// This checks for global variables which should be upgraded. It it requires
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  /// upgrading, returns a pointer to the upgraded variable.
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  GlobalVariable *UpgradeGlobalVariable(GlobalVariable *GV);
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  /// This checks for module flags which should be upgraded. It returns true if
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  /// module is modified.
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  bool UpgradeModuleFlags(Module &M);
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  /// This checks for objc retain release marker which should be upgraded. It
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  /// returns true if module is modified.
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  bool UpgradeRetainReleaseMarker(Module &M);
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  void UpgradeSectionAttributes(Module &M);
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  /// If the given TBAA tag uses the scalar TBAA format, create a new node
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  /// corresponding to the upgrade to the struct-path aware TBAA format.
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  /// Otherwise return the \p TBAANode itself.
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  MDNode *UpgradeTBAANode(MDNode &TBAANode);
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  /// This is an auto-upgrade for bitcast between pointers with different
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  /// address spaces: the instruction is replaced by a pair ptrtoint+inttoptr.
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  Instruction *UpgradeBitCastInst(unsigned Opc, Value *V, Type *DestTy,
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                                  Instruction *&Temp);
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  /// This is an auto-upgrade for bitcast constant expression between pointers
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  /// with different address spaces: the instruction is replaced by a pair
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  /// ptrtoint+inttoptr.
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  Value *UpgradeBitCastExpr(unsigned Opc, Constant *C, Type *DestTy);
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  /// Check the debug info version number, if it is out-dated, drop the debug
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  /// info. Return true if module is modified.
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  bool UpgradeDebugInfo(Module &M);
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  /// Check whether a string looks like an old loop attachment tag.
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  inline bool mayBeOldLoopAttachmentTag(StringRef Name) {
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    return Name.startswith("llvm.vectorizer.");
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  }
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  /// Upgrade the loop attachment metadata node.
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  MDNode *upgradeInstructionLoopAttachment(MDNode &N);
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} // End llvm namespace
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#endif