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| author | Mingming Liu <mingmingl@google.com> | 2025-09-10 15:25:31 -0700 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2025-09-10 15:25:31 -0700 |
| commit | 1417dafa1db9cb1b2b09438aa9f53ea5ab6e36e2 (patch) | |
| tree | 57f4b1f313c8cf74eed8819870f39c36ea263c68 /libc/include/llvm-libc-macros/cfloat128-macros.h | |
| parent | 898b813bc8a6d0276bf0f4769f5f2f64b34e632d (diff) | |
| parent | b8cefcb601ddaa18482555c4ff363c01a270c2fe (diff) | |
Merge branch 'main' into users/mingmingl-llvm/samplefdo-profile-formatusers/mingmingl-llvm/samplefdo-profile-format
Diffstat (limited to 'libc/include/llvm-libc-macros/cfloat128-macros.h')
| -rw-r--r-- | libc/include/llvm-libc-macros/cfloat128-macros.h | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/libc/include/llvm-libc-macros/cfloat128-macros.h b/libc/include/llvm-libc-macros/cfloat128-macros.h new file mode 100644 index 000000000000..5f28cfa21aae --- /dev/null +++ b/libc/include/llvm-libc-macros/cfloat128-macros.h @@ -0,0 +1,41 @@ +//===-- Detection of _Complex _Float128 compiler builtin type -------------===// +// +// 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 +// +//===----------------------------------------------------------------------===// + +#ifndef LLVM_LIBC_MACROS_CFLOAT128_MACROS_H +#define LLVM_LIBC_MACROS_CFLOAT128_MACROS_H + +#include "float-macros.h" // LDBL_MANT_DIG + +// Currently, the complex variant of C23 `_Float128` type is only defined as a +// built-in type in GCC 7 or later, for C and in GCC 13 or later, for C++. For +// clang, the complex variant of `__float128` is defined instead, and only on +// x86-64 targets for clang 11 or later. +// +// TODO: Update the complex variant of C23 `_Float128` type detection again when +// clang supports it. +#ifdef __clang__ +#if (__clang_major__ >= 11) && \ + (defined(__FLOAT128__) || defined(__SIZEOF_FLOAT128__)) +// Use _Complex __float128 type. clang uses __SIZEOF_FLOAT128__ or __FLOAT128__ +// macro to notify the availability of __float128 type: +// https://reviews.llvm.org/D15120 +#define LIBC_TYPES_HAS_CFLOAT128 +#endif +#elif defined(__GNUC__) +#if (defined(__STDC_IEC_60559_COMPLEX__) || defined(__SIZEOF_FLOAT128__)) && \ + (__GNUC__ >= 13 || (!defined(__cplusplus))) +#define LIBC_TYPES_HAS_CFLOAT128 +#endif +#endif + +#if !defined(LIBC_TYPES_HAS_CFLOAT128) && (LDBL_MANT_DIG == 113) +#define LIBC_TYPES_HAS_CFLOAT128 +#define LIBC_TYPES_CFLOAT128_IS_COMPLEX_LONG_DOUBLE +#endif + +#endif // LLVM_LIBC_MACROS_CFLOAT128_MACROS_H |