llvm/llvm/lib/Frontend/Offloading/Utility.cpp

//===- Utility.cpp ------ Collection of generic offloading utilities ------===//
//
// 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
//
//===----------------------------------------------------------------------===//

#include "llvm/Frontend/Offloading/Utility.h"
#include "llvm/BinaryFormat/AMDGPUMetadataVerifier.h"
#include "llvm/BinaryFormat/ELF.h"
#include "llvm/BinaryFormat/MsgPackDocument.h"
#include "llvm/IR/Constants.h"
#include "llvm/IR/GlobalValue.h"
#include "llvm/IR/GlobalVariable.h"
#include "llvm/IR/Value.h"
#include "llvm/Object/ELFObjectFile.h"
#include "llvm/Support/MemoryBufferRef.h"
#include "llvm/Support/YAMLTraits.h"
#include "llvm/Transforms/Utils/ModuleUtils.h"

usingnamespacellvm;
usingnamespacellvm::offloading;

StructType *offloading::getEntryTy(Module &M) { … }

// TODO: Rework this interface to be more generic.
std::pair<Constant *, GlobalVariable *>
offloading::getOffloadingEntryInitializer(Module &M, Constant *Addr,
                                          StringRef Name, uint64_t Size,
                                          int32_t Flags, int32_t Data) { … }

void offloading::emitOffloadingEntry(Module &M, Constant *Addr, StringRef Name,
                                     uint64_t Size, int32_t Flags, int32_t Data,
                                     StringRef SectionName) { … }

std::pair<GlobalVariable *, GlobalVariable *>
offloading::getOffloadEntryArray(Module &M, StringRef SectionName) { … }

bool llvm::offloading::amdgpu::isImageCompatibleWithEnv(StringRef ImageArch,
                                                        uint32_t ImageFlags,
                                                        StringRef EnvTargetID) { … }

namespace {
/// Reads the AMDGPU specific per-kernel-metadata from an image.
class KernelInfoReader { … };
} // namespace

Error llvm::offloading::amdgpu::getAMDGPUMetaDataFromImage(
    MemoryBufferRef MemBuffer,
    StringMap<offloading::amdgpu::AMDGPUKernelMetaData> &KernelInfoMap,
    uint16_t &ELFABIVersion) { … }