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/* ===-- absvti2.c - Implement __absvdi2 -----------------------------------===
*
* The LLVM Compiler Infrastructure
*
* This file is distributed under the University of Illinois Open Source
* License. See LICENSE.TXT for details.
*
* ===----------------------------------------------------------------------===
*
* This file implements __absvti2 for the compiler_rt library.
*
* ===----------------------------------------------------------------------===
*/
#if __x86_64
#include "int_lib.h"
#include <stdlib.h>
/* Returns: absolute value */
/* Effects: aborts if abs(x) < 0 */
ti_int
__absvti2(ti_int a)
{
const int N = (int)(sizeof(ti_int) * CHAR_BIT);
if (a == ((ti_int)1 << (N-1)))
compilerrt_abort();
const ti_int s = a >> (N - 1);
return (a ^ s) - s;
}
#endif
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