| //===- ObjCARCUtil.h - ObjC ARC Utility Functions ---------------*- 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 |
| // |
| //===----------------------------------------------------------------------===// |
| /// \file |
| /// This file defines ARC utility functions which are used by various parts of |
| /// the compiler. |
| /// |
| //===----------------------------------------------------------------------===// |
| |
| #ifndef LLVM_LIB_ANALYSIS_OBJCARCUTIL_H |
| #define LLVM_LIB_ANALYSIS_OBJCARCUTIL_H |
| |
| #include "llvm/IR/InstrTypes.h" |
| #include "llvm/IR/LLVMContext.h" |
| |
| namespace llvm { |
| namespace objcarc { |
| |
| static inline const char *getRVMarkerModuleFlagStr() { |
| return "clang.arc.retainAutoreleasedReturnValueMarker"; |
| } |
| |
| enum AttachedCallOperandBundle : unsigned { RVOB_Retain, RVOB_Claim }; |
| |
| static AttachedCallOperandBundle |
| getAttachedCallOperandBundleEnum(bool IsRetain) { |
| return IsRetain ? RVOB_Retain : RVOB_Claim; |
| } |
| |
| static inline bool hasAttachedCallOpBundle(const CallBase *CB, bool IsRetain) { |
| auto B = CB->getOperandBundle(LLVMContext::OB_clang_arc_attachedcall); |
| if (!B.hasValue()) |
| return false; |
| return cast<ConstantInt>(B->Inputs[0])->getZExtValue() == |
| getAttachedCallOperandBundleEnum(IsRetain); |
| } |
| |
| static inline bool hasAttachedCallOpBundle(const CallBase *CB) { |
| return CB->getOperandBundle(LLVMContext::OB_clang_arc_attachedcall) |
| .hasValue(); |
| } |
| |
| } // end namespace objcarc |
| } // end namespace llvm |
| |
| #endif |