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1//===-- negvti2.c - Implement __negvti2 -----------------------------------===//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// This file implements __negvti2 for the compiler_rt library.10//11//===----------------------------------------------------------------------===//12 13#include "int_lib.h"14 15#ifdef CRT_HAS_128BIT16 17// Returns: -a18 19// Effects: aborts if -a overflows20 21COMPILER_RT_ABI ti_int __negvti2(ti_int a) {22 const ti_int MIN = (tu_int)1 << ((int)(sizeof(ti_int) * CHAR_BIT) - 1);23 if (a == MIN)24 compilerrt_abort();25 return -a;26}27 28#endif // CRT_HAS_128BIT29