ldc/gen/llvmcompat.h
Martin e7bfb78632 Refactor attributes system.
By introducing abstractions for attribute builder and set since they differ
greatly between LLVM 3.1-3.3.
2015-02-23 22:52:11 +01:00

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//===-- gen/llvmcompat.h - LLVM API compatibilty shims ----------*- C++ -*-===//
//
// LDC the LLVM D compiler
//
// This file is distributed under the BSD-style LDC license. See the LICENSE
// file for details.
//
//===----------------------------------------------------------------------===//
//
// Provides a central place to handle API changes between supported LLVM
// versions.
//
//===----------------------------------------------------------------------===//
#ifdef _MSC_VER
#pragma once
#endif
#ifndef LDC_LLVMCOMPAT_H
#define LDC_LLVMCOMPAT_H
#if !defined(LDC_LLVM_VER)
#error "Please specify value for LDC_LLVM_VER."
#endif
#if LDC_LLVM_VER >= 302
#define ADDRESS_SPACE 0
#else
#define ADDRESS_SPACE
#endif
#if LDC_LLVM_VER < 302
#define LLVM_OVERRIDE
#define llvm_move(value) (value)
#endif
#ifndef __has_feature
# define __has_feature(x) 0
#endif
#if LDC_LLVM_VER >= 305
#if __has_feature(cxx_override_control) \
|| (defined(_MSC_VER) && _MSC_VER >= 1700)
#define LLVM_OVERRIDE override
#else
#define LLVM_OVERRIDE
#endif
#if (__has_feature(cxx_rvalue_references) \
|| defined(__GXX_EXPERIMENTAL_CXX0X__) \
|| (defined(_MSC_VER) && _MSC_VER >= 1600))
#define LLVM_HAS_RVALUE_REFERENCES 1
#else
#define LLVM_HAS_RVALUE_REFERENCES 0
#endif
#if LLVM_HAS_RVALUE_REFERENCES
#define llvm_move(value) (::std::move(value))
#else
#define llvm_move(value) (value)
#endif
#endif
#endif