forked from OSchip/llvm-project
28 lines
783 B
C
28 lines
783 B
C
/* ===-- negvsi2.c - Implement __negvsi2 -----------------------------------===
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*
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* Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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* See https://llvm.org/LICENSE.txt for license information.
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* SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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*
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* ===----------------------------------------------------------------------===
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*
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* This file implements __negvsi2 for the compiler_rt library.
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*
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* ===----------------------------------------------------------------------===
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*/
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#include "int_lib.h"
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/* Returns: -a */
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/* Effects: aborts if -a overflows */
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COMPILER_RT_ABI si_int
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__negvsi2(si_int a)
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{
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const si_int MIN = (si_int)1 << ((int)(sizeof(si_int) * CHAR_BIT)-1);
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if (a == MIN)
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compilerrt_abort();
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return -a;
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}
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