135 lines
5.3 KiB
C++
135 lines
5.3 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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#include "llvm/Support/Compiler.h"
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#include <vector>
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namespace llvm {
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class AttrBuilder;
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class CallBase;
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class Constant;
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class Function;
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class Instruction;
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class GlobalVariable;
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class MDNode;
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class Module;
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class StringRef;
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class Type;
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class Value;
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template <typename T> class OperandBundleDefT;
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using OperandBundleDef = OperandBundleDefT<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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LLVM_ABI bool
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UpgradeIntrinsicFunction(Function *F, Function *&NewFn,
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bool CanUpgradeDebugIntrinsicsToRecords = true);
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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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LLVM_ABI void UpgradeIntrinsicCall(CallBase *CB, 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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LLVM_ABI 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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LLVM_ABI void UpgradeCallsToIntrinsic(Function *F);
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/// This checks for global variables which should be upgraded. If it requires
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/// upgrading, returns a pointer to the upgraded variable.
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LLVM_ABI 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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LLVM_ABI bool UpgradeModuleFlags(Module &M);
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/// Upgrade the cfi.functions metadata node by calculating and inserting
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/// the GUID for each function entry if it's missing.
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LLVM_ABI bool UpgradeCFIFunctionsMetadata(Module &M);
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/// Convert legacy nvvm.annotations metadata to appropriate function
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/// attributes.
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LLVM_ABI void UpgradeNVVMAnnotations(Module &M);
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/// Convert calls to ARC runtime functions to intrinsic calls and upgrade the
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/// old retain release marker to new module flag format.
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LLVM_ABI void UpgradeARCRuntime(Module &M);
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LLVM_ABI void UpgradeSectionAttributes(Module &M);
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/// Correct any IR that is relying on old function attribute behavior.
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LLVM_ABI void UpgradeFunctionAttributes(Function &F);
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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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LLVM_ABI 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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LLVM_ABI 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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LLVM_ABI Constant *UpgradeBitCastExpr(unsigned Opc, Constant *C,
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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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LLVM_ABI bool UpgradeDebugInfo(Module &M);
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/// Copies module attributes to the functions in the module.
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/// Currently only effects ARM, Thumb and AArch64 targets.
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/// Supported attributes:
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/// - branch-target-enforcement
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/// - branch-protection-pauth-lr
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/// - guarded-control-stack
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/// - sign-return-address
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/// - sign-return-address-with-bkey
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LLVM_ABI void copyModuleAttrToFunctions(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.starts_with("llvm.vectorizer.");
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}
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/// Upgrade the loop attachment metadata node.
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LLVM_ABI MDNode *upgradeInstructionLoopAttachment(MDNode &N);
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/// Upgrade the datalayout string by adding a section for address space
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/// pointers.
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LLVM_ABI std::string UpgradeDataLayoutString(StringRef DL, StringRef Triple);
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/// Upgrade attributes that changed format or kind.
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LLVM_ABI void UpgradeAttributes(AttrBuilder &B);
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/// Upgrade operand bundles (without knowing about their user instruction).
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LLVM_ABI void
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UpgradeOperandBundles(std::vector<OperandBundleDef> &OperandBundles);
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} // End llvm namespace
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#endif
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