b663c98c57
Introduce CRT_HAS_128BIT, currently for all __LP64__ platforms. Use it to enable the various functions for TI mode. This makes sure the correct primitives are also built for sparc64.
35 lines
856 B
C
35 lines
856 B
C
/* ===-- absvti2.c - Implement __absvdi2 -----------------------------------===
|
|
*
|
|
* 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 __absvti2 for the compiler_rt library.
|
|
*
|
|
* ===----------------------------------------------------------------------===
|
|
*/
|
|
|
|
#include "int_lib.h"
|
|
|
|
#ifdef CRT_HAS_128BIT
|
|
|
|
/* 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 /* CRT_HAS_128BIT */
|
|
|