/*===-- negvti2.c - Implement __negvti2 -----------------------------------===
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*
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* The LLVM Compiler Infrastructure
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*
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* This file is dual licensed under the MIT and the University of Illinois Open
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* Source Licenses. See LICENSE.TXT for details.
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*
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*===----------------------------------------------------------------------===
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*
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*This file implements __negvti2 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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#ifdef CRT_HAS_128BIT
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/* Returns: -a */
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/* Effects: aborts if -a overflows */
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COMPILER_RT_ABI ti_int
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__negvti2(ti_int a)
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{
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const ti_int MIN = (ti_int)1 << ((int)(sizeof(ti_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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#endif /* CRT_HAS_128BIT */
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