1/* ===-- cmpti2.c - Implement __cmpti2 -------------------------------------===
2 *
3 *                     The LLVM Compiler Infrastructure
4 *
5 * This file is dual licensed under the MIT and the University of Illinois Open
6 * Source Licenses. See LICENSE.TXT for details.
7 *
8 * ===----------------------------------------------------------------------===
9 *
10 * This file implements __cmpti2 for the compiler_rt library.
11 *
12 * ===----------------------------------------------------------------------===
13 */
14
15#include "int_lib.h"
16
17#ifdef CRT_HAS_128BIT
18
19/* Returns:  if (a <  b) returns 0
20 *           if (a == b) returns 1
21 *           if (a >  b) returns 2
22 */
23
24COMPILER_RT_ABI si_int
25__cmpti2(ti_int a, ti_int b)
26{
27    twords x;
28    x.all = a;
29    twords y;
30    y.all = b;
31    if (x.s.high < y.s.high)
32        return 0;
33    if (x.s.high > y.s.high)
34        return 2;
35    if (x.s.low < y.s.low)
36        return 0;
37    if (x.s.low > y.s.low)
38        return 2;
39    return 1;
40}
41
42#endif /* CRT_HAS_128BIT */
43