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1//===-- Detection of _Complex _Float128 compiler builtin type -------------===//2//3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.4// See https://llvm.org/LICENSE.txt for license information.5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception6//7//===----------------------------------------------------------------------===//8 9#ifndef LLVM_LIBC_MACROS_CFLOAT128_MACROS_H10#define LLVM_LIBC_MACROS_CFLOAT128_MACROS_H11 12#include "float-macros.h" // LDBL_MANT_DIG13 14// Currently, the complex variant of C23 `_Float128` type is only defined as a15// built-in type in GCC 7 or later, for C and in GCC 13 or later, for C++. For16// clang, the complex variant of `__float128` is defined instead, and only on17// x86-64 targets for clang 11 or later.18//19// TODO: Update the complex variant of C23 `_Float128` type detection again when20// clang supports it.21#ifdef __clang__22#if (__clang_major__ >= 11) && \23 (defined(__FLOAT128__) || defined(__SIZEOF_FLOAT128__))24// Use _Complex __float128 type. clang uses __SIZEOF_FLOAT128__ or __FLOAT128__25// macro to notify the availability of __float128 type:26// https://reviews.llvm.org/D1512027#define LIBC_TYPES_HAS_CFLOAT12828#endif29#elif defined(__GNUC__)30#if (defined(__STDC_IEC_60559_COMPLEX__) || defined(__SIZEOF_FLOAT128__)) && \31 (__GNUC__ >= 13 || (!defined(__cplusplus)))32#define LIBC_TYPES_HAS_CFLOAT12833#endif34#endif35 36#if !defined(LIBC_TYPES_HAS_CFLOAT128) && (LDBL_MANT_DIG == 113)37#define LIBC_TYPES_HAS_CFLOAT12838#define LIBC_TYPES_CFLOAT128_IS_COMPLEX_LONG_DOUBLE39#endif40 41#endif // LLVM_LIBC_MACROS_CFLOAT128_MACROS_H42