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//===------ Mangling.h -- Name Mangling Utilities for ORC -------*- 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
//
//===----------------------------------------------------------------------===//
//
// Name mangling utilities for ORC.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_EXECUTIONENGINE_ORC_MANGLING_H
#define LLVM_EXECUTIONENGINE_ORC_MANGLING_H
#include "llvm/ExecutionEngine/Orc/Core.h"
#include "llvm/ExecutionEngine/Orc/ThreadSafeModule.h"
#include "llvm/IR/Module.h"
#include "llvm/Support/MemoryBuffer.h"
namespace llvm {
namespace orc {
/// Mangles symbol names then uniques them in the context of an
/// ExecutionSession.
class MangleAndInterner {
public:
MangleAndInterner(ExecutionSession &ES, const DataLayout &DL);
SymbolStringPtr operator()(StringRef Name);
private:
ExecutionSession &ES;
const DataLayout &DL;
};
/// Maps IR global values to their linker symbol names / flags.
///
/// This utility can be used when adding new IR globals in the JIT.
class IRSymbolMapper {
public:
struct ManglingOptions {
bool EmulatedTLS = false;
};
using SymbolNameToDefinitionMap = std::map<SymbolStringPtr, GlobalValue *>;
/// Add mangled symbols for the given GlobalValues to SymbolFlags.
/// If a SymbolToDefinitionMap pointer is supplied then it will be populated
/// with Name-to-GlobalValue* mappings. Note that this mapping is not
/// necessarily one-to-one: thread-local GlobalValues, for example, may
/// produce more than one symbol, in which case the map will contain duplicate
/// values.
static void add(ExecutionSession &ES, const ManglingOptions &MO,
ArrayRef<GlobalValue *> GVs, SymbolFlagsMap &SymbolFlags,
SymbolNameToDefinitionMap *SymbolToDefinition = nullptr);
};
} // End namespace orc
} // End namespace llvm
#endif // LLVM_EXECUTIONENGINE_ORC_MANGLING_H
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