1 | /* ===-- ucmpti2.c - Implement __ucmpti2 -----------------------------------=== |
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 __ucmpti2 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 | |
24 | COMPILER_RT_ABI si_int |
25 | __ucmpti2(tu_int a, tu_int b) |
26 | { |
27 | utwords x; |
28 | x.all = a; |
29 | utwords 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 | |