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