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1//===-- absvti2.c - Implement __absvdi2 -----------------------------------===//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 __absvti2 for the compiler_rt library.10//11//===----------------------------------------------------------------------===//12 13#include "int_lib.h"14 15#ifdef CRT_HAS_128BIT16 17// Returns: absolute value18 19// Effects: aborts if abs(x) < 020 21COMPILER_RT_ABI ti_int __absvti2(ti_int a) {22 const int N = (int)(sizeof(ti_int) * CHAR_BIT);23 if (a == (ti_int)((tu_int)1 << (N - 1)))24 compilerrt_abort();25 const ti_int s = a >> (N - 1);26 return (a ^ s) - s;27}28 29#endif // CRT_HAS_128BIT30