1 //===-- cmpti2.c - Implement __cmpti2 -------------------------------------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8 //
9 // This file implements __cmpti2 for the compiler_rt library.
10 //
11 //===----------------------------------------------------------------------===//
12 
13 #include "int_lib.h"
14 
15 #ifdef CRT_HAS_128BIT
16 
17 // Returns:  if (a <  b) returns 0
18 //           if (a == b) returns 1
19 //           if (a >  b) returns 2
20 
21 COMPILER_RT_ABI si_int __cmpti2(ti_int a, ti_int b) {
22   twords x;
23   x.all = a;
24   twords y;
25   y.all = b;
26   if (x.s.high < y.s.high)
27     return 0;
28   if (x.s.high > y.s.high)
29     return 2;
30   if (x.s.low < y.s.low)
31     return 0;
32   if (x.s.low > y.s.low)
33     return 2;
34   return 1;
35 }
36 
37 #endif // CRT_HAS_128BIT
38