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/* ===-- negvdi2.c - Implement __negvdi2 -----------------------------------===
*
* 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 __negvdi2 for the compiler_rt library.
*
* ===----------------------------------------------------------------------===
*/
#include "int_lib.h"
/* Returns: -a */
/* Effects: aborts if -a overflows */
COMPILER_RT_ABI di_int
__negvdi2(di_int a)
{
const di_int MIN = (di_int)1 << ((int)(sizeof(di_int) * CHAR_BIT)-1);
if (a == MIN)
compilerrt_abort();
return -a;
}
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