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//===- subzero/src/IceTypeConverter.h - Convert ICE/LLVM Types --*- C++ -*-===//
// The Subzero Code Generator
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
/// \file
/// \brief Defines how to convert LLVM types to ICE types, and ICE types to LLVM
/// types.
#include "IceDefs.h"
#include "IceTypes.h"
#ifdef __clang__
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wunused-parameter"
#endif // __clang__
#include "llvm/IR/DerivedTypes.h"
#ifdef __clang__
#pragma clang diagnostic pop
#endif // __clang__
namespace llvm {
class LLVMContext;
} // end of namespace llvm
namespace Ice {
/// Converts LLVM types to ICE types, and ICE types to LLVM types.
class TypeConverter {
TypeConverter() = delete;
TypeConverter(const TypeConverter &) = delete;
TypeConverter &operator=(const TypeConverter &) = delete;
/// Context is the context to use to build llvm types.
explicit TypeConverter(llvm::LLVMContext &Context);
/// Converts LLVM type LLVMTy to an ICE type. Returns Ice::IceType_NUM if
/// unable to convert.
Type convertToIceType(llvm::Type *LLVMTy) const {
auto Pos = LLVM2IceMap.find(LLVMTy);
if (Pos == LLVM2IceMap.end())
return convertToIceTypeOther(LLVMTy);
return Pos->second;
/// The mapping from LLVM types to corresopnding Ice types.
std::map<llvm::Type *, Type> LLVM2IceMap;
/// Add LLVM/ICE pair to internal tables.
void addLLVMType(Type Ty, llvm::Type *LLVMTy);
/// Converts types not in LLVM2IceMap.
Type convertToIceTypeOther(llvm::Type *LLVMTy) const;
} // end of namespace Ice