mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-25 20:23:11 +01:00
ae65e281f3
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
86 lines
2.6 KiB
C++
86 lines
2.6 KiB
C++
//===-- Bitcode/Reader/MetadataLoader.h - Load Metadatas -------*- 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
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// This class handles loading Metadatas.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#ifndef LLVM_LIB_BITCODE_READER_METADATALOADER_H
|
|
#define LLVM_LIB_BITCODE_READER_METADATALOADER_H
|
|
|
|
#include "llvm/ADT/SmallVector.h"
|
|
#include "llvm/Support/Error.h"
|
|
|
|
#include <functional>
|
|
#include <memory>
|
|
|
|
namespace llvm {
|
|
class BitcodeReaderValueList;
|
|
class BitstreamCursor;
|
|
class DISubprogram;
|
|
class Error;
|
|
class Function;
|
|
class Instruction;
|
|
class Metadata;
|
|
class MDNode;
|
|
class Module;
|
|
class Type;
|
|
|
|
/// Helper class that handles loading Metadatas and keeping them available.
|
|
class MetadataLoader {
|
|
class MetadataLoaderImpl;
|
|
std::unique_ptr<MetadataLoaderImpl> Pimpl;
|
|
Error parseMetadata(bool ModuleLevel);
|
|
|
|
public:
|
|
~MetadataLoader();
|
|
MetadataLoader(BitstreamCursor &Stream, Module &TheModule,
|
|
BitcodeReaderValueList &ValueList, bool IsImporting,
|
|
std::function<Type *(unsigned)> getTypeByID);
|
|
MetadataLoader &operator=(MetadataLoader &&);
|
|
MetadataLoader(MetadataLoader &&);
|
|
|
|
// Parse a module metadata block
|
|
Error parseModuleMetadata() { return parseMetadata(true); }
|
|
|
|
// Parse a function metadata block
|
|
Error parseFunctionMetadata() { return parseMetadata(false); }
|
|
|
|
/// Set the mode to strip TBAA metadata on load.
|
|
void setStripTBAA(bool StripTBAA = true);
|
|
|
|
/// Return true if the Loader is stripping TBAA metadata.
|
|
bool isStrippingTBAA();
|
|
|
|
// Return true there are remaining unresolved forward references.
|
|
bool hasFwdRefs() const;
|
|
|
|
/// Return the given metadata, creating a replaceable forward reference if
|
|
/// necessary.
|
|
Metadata *getMetadataFwdRefOrLoad(unsigned Idx);
|
|
|
|
/// Return the DISubprogram metadata for a Function if any, null otherwise.
|
|
DISubprogram *lookupSubprogramForFunction(Function *F);
|
|
|
|
/// Parse a `METADATA_ATTACHMENT` block for a function.
|
|
Error parseMetadataAttachment(
|
|
Function &F, const SmallVectorImpl<Instruction *> &InstructionList);
|
|
|
|
/// Parse a `METADATA_KIND` block for the current module.
|
|
Error parseMetadataKinds();
|
|
|
|
unsigned size() const;
|
|
void shrinkTo(unsigned N);
|
|
|
|
/// Perform bitcode upgrades on llvm.dbg.* calls.
|
|
void upgradeDebugIntrinsics(Function &F);
|
|
};
|
|
}
|
|
|
|
#endif // LLVM_LIB_BITCODE_READER_METADATALOADER_H
|