| //===-- Common internal contructs -----------------------------------------===// |
| // |
| // 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_SUPPORT_COMMON_H |
| #define LLVM_LIBC_SUPPORT_COMMON_H |
| |
| #define LIBC_INLINE_ASM __asm__ __volatile__ |
| |
| #define likely(x) __builtin_expect(!!(x), 1) |
| #define unlikely(x) __builtin_expect(x, 0) |
| #define UNUSED __attribute__((unused)) |
| |
| #ifndef LLVM_LIBC_FUNCTION_ATTR |
| #define LLVM_LIBC_FUNCTION_ATTR |
| #endif |
| |
| #ifdef LLVM_LIBC_PUBLIC_PACKAGING |
| #define LLVM_LIBC_FUNCTION(type, name, arglist) \ |
| LLVM_LIBC_FUNCTION_ATTR decltype(__llvm_libc::name) \ |
| __##name##_impl__ __asm__(#name); \ |
| decltype(__llvm_libc::name) name [[gnu::alias(#name)]]; \ |
| type __##name##_impl__ arglist |
| #else |
| #define LLVM_LIBC_FUNCTION(type, name, arglist) type name arglist |
| #endif |
| |
| #endif // LLVM_LIBC_SUPPORT_COMMON_H |