1 |
|
|
/* ===-- ucmpdi2.c - Implement __ucmpdi2 -----------------------------------=== |
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 __ucmpdi2 for the compiler_rt library. |
11 |
|
|
* |
12 |
|
|
* ===----------------------------------------------------------------------=== |
13 |
|
|
*/ |
14 |
|
|
|
15 |
|
|
#include "int_lib.h" |
16 |
|
|
|
17 |
|
|
/* Returns: if (a < b) returns 0 |
18 |
|
|
* if (a == b) returns 1 |
19 |
|
|
* if (a > b) returns 2 |
20 |
|
|
*/ |
21 |
|
|
|
22 |
|
|
COMPILER_RT_ABI si_int |
23 |
|
|
__ucmpdi2(du_int a, du_int b) |
24 |
|
|
{ |
25 |
|
|
udwords x; |
26 |
|
|
x.all = a; |
27 |
|
|
udwords y; |
28 |
|
|
y.all = b; |
29 |
|
|
if (x.s.high < y.s.high) |
30 |
|
|
return 0; |
31 |
|
|
if (x.s.high > y.s.high) |
32 |
|
|
return 2; |
33 |
|
|
if (x.s.low < y.s.low) |
34 |
|
|
return 0; |
35 |
|
|
if (x.s.low > y.s.low) |
36 |
|
|
return 2; |
37 |
|
|
return 1; |
38 |
|
|
} |
39 |
|
|
|
40 |
|
|
#ifdef __ARM_EABI__ |
41 |
|
|
/* Returns: if (a < b) returns -1 |
42 |
|
|
* if (a == b) returns 0 |
43 |
|
|
* if (a > b) returns 1 |
44 |
|
|
*/ |
45 |
|
|
COMPILER_RT_ABI si_int |
46 |
|
|
__aeabi_ulcmp(di_int a, di_int b) |
47 |
|
|
{ |
48 |
|
|
return __ucmpdi2(a, b) - 1; |
49 |
|
|
} |
50 |
|
|
#endif |
51 |
|
|
|