xref: /minix3/sys/external/bsd/compiler_rt/dist/lib/builtins/cmpti2.c (revision 0a6a1f1d05b60e214de2f05a7310ddd1f0e590e7)
1*0a6a1f1dSLionel Sambuc /* ===-- cmpti2.c - Implement __cmpti2 -------------------------------------===
2*0a6a1f1dSLionel Sambuc  *
3*0a6a1f1dSLionel Sambuc  *                     The LLVM Compiler Infrastructure
4*0a6a1f1dSLionel Sambuc  *
5*0a6a1f1dSLionel Sambuc  * This file is dual licensed under the MIT and the University of Illinois Open
6*0a6a1f1dSLionel Sambuc  * Source Licenses. See LICENSE.TXT for details.
7*0a6a1f1dSLionel Sambuc  *
8*0a6a1f1dSLionel Sambuc  * ===----------------------------------------------------------------------===
9*0a6a1f1dSLionel Sambuc  *
10*0a6a1f1dSLionel Sambuc  * This file implements __cmpti2 for the compiler_rt library.
11*0a6a1f1dSLionel Sambuc  *
12*0a6a1f1dSLionel Sambuc  * ===----------------------------------------------------------------------===
13*0a6a1f1dSLionel Sambuc  */
14*0a6a1f1dSLionel Sambuc 
15*0a6a1f1dSLionel Sambuc #include "int_lib.h"
16*0a6a1f1dSLionel Sambuc 
17*0a6a1f1dSLionel Sambuc #ifdef CRT_HAS_128BIT
18*0a6a1f1dSLionel Sambuc 
19*0a6a1f1dSLionel Sambuc /* Returns:  if (a <  b) returns 0
20*0a6a1f1dSLionel Sambuc  *           if (a == b) returns 1
21*0a6a1f1dSLionel Sambuc  *           if (a >  b) returns 2
22*0a6a1f1dSLionel Sambuc  */
23*0a6a1f1dSLionel Sambuc 
24*0a6a1f1dSLionel Sambuc COMPILER_RT_ABI si_int
__cmpti2(ti_int a,ti_int b)25*0a6a1f1dSLionel Sambuc __cmpti2(ti_int a, ti_int b)
26*0a6a1f1dSLionel Sambuc {
27*0a6a1f1dSLionel Sambuc     twords x;
28*0a6a1f1dSLionel Sambuc     x.all = a;
29*0a6a1f1dSLionel Sambuc     twords y;
30*0a6a1f1dSLionel Sambuc     y.all = b;
31*0a6a1f1dSLionel Sambuc     if (x.s.high < y.s.high)
32*0a6a1f1dSLionel Sambuc         return 0;
33*0a6a1f1dSLionel Sambuc     if (x.s.high > y.s.high)
34*0a6a1f1dSLionel Sambuc         return 2;
35*0a6a1f1dSLionel Sambuc     if (x.s.low < y.s.low)
36*0a6a1f1dSLionel Sambuc         return 0;
37*0a6a1f1dSLionel Sambuc     if (x.s.low > y.s.low)
38*0a6a1f1dSLionel Sambuc         return 2;
39*0a6a1f1dSLionel Sambuc     return 1;
40*0a6a1f1dSLionel Sambuc }
41*0a6a1f1dSLionel Sambuc 
42*0a6a1f1dSLionel Sambuc #endif /* CRT_HAS_128BIT */
43