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to reflect the new license. We understand that people may be surprised that we're moving the header entirely to discuss the new license. We checked this carefully with the Foundation's lawyer and we believe this is the correct approach. Essentially, all code in the project is now made available by the LLVM project under our new license, so you will see that the license headers include that license only. Some of our contributors have contributed code under our old license, and accordingly, we have retained a copy of our old license notice in the top-level files in each project and repository. llvm-svn: 351636
93 lines
3.5 KiB
C++
93 lines
3.5 KiB
C++
//===- 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 returns true
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/// if it requires upgrading.
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bool 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
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