xref: /aosp_15_r20/external/compiler-rt/lib/builtins/cmpti2.c (revision 7c3d14c8b49c529e04be81a3ce6f5cc23712e4c6)
1*7c3d14c8STreehugger Robot /* ===-- cmpti2.c - Implement __cmpti2 -------------------------------------===
2*7c3d14c8STreehugger Robot  *
3*7c3d14c8STreehugger Robot  *                     The LLVM Compiler Infrastructure
4*7c3d14c8STreehugger Robot  *
5*7c3d14c8STreehugger Robot  * This file is dual licensed under the MIT and the University of Illinois Open
6*7c3d14c8STreehugger Robot  * Source Licenses. See LICENSE.TXT for details.
7*7c3d14c8STreehugger Robot  *
8*7c3d14c8STreehugger Robot  * ===----------------------------------------------------------------------===
9*7c3d14c8STreehugger Robot  *
10*7c3d14c8STreehugger Robot  * This file implements __cmpti2 for the compiler_rt library.
11*7c3d14c8STreehugger Robot  *
12*7c3d14c8STreehugger Robot  * ===----------------------------------------------------------------------===
13*7c3d14c8STreehugger Robot  */
14*7c3d14c8STreehugger Robot 
15*7c3d14c8STreehugger Robot #include "int_lib.h"
16*7c3d14c8STreehugger Robot 
17*7c3d14c8STreehugger Robot #ifdef CRT_HAS_128BIT
18*7c3d14c8STreehugger Robot 
19*7c3d14c8STreehugger Robot /* Returns:  if (a <  b) returns 0
20*7c3d14c8STreehugger Robot  *           if (a == b) returns 1
21*7c3d14c8STreehugger Robot  *           if (a >  b) returns 2
22*7c3d14c8STreehugger Robot  */
23*7c3d14c8STreehugger Robot 
24*7c3d14c8STreehugger Robot COMPILER_RT_ABI si_int
__cmpti2(ti_int a,ti_int b)25*7c3d14c8STreehugger Robot __cmpti2(ti_int a, ti_int b)
26*7c3d14c8STreehugger Robot {
27*7c3d14c8STreehugger Robot     twords x;
28*7c3d14c8STreehugger Robot     x.all = a;
29*7c3d14c8STreehugger Robot     twords y;
30*7c3d14c8STreehugger Robot     y.all = b;
31*7c3d14c8STreehugger Robot     if (x.s.high < y.s.high)
32*7c3d14c8STreehugger Robot         return 0;
33*7c3d14c8STreehugger Robot     if (x.s.high > y.s.high)
34*7c3d14c8STreehugger Robot         return 2;
35*7c3d14c8STreehugger Robot     if (x.s.low < y.s.low)
36*7c3d14c8STreehugger Robot         return 0;
37*7c3d14c8STreehugger Robot     if (x.s.low > y.s.low)
38*7c3d14c8STreehugger Robot         return 2;
39*7c3d14c8STreehugger Robot     return 1;
40*7c3d14c8STreehugger Robot }
41*7c3d14c8STreehugger Robot 
42*7c3d14c8STreehugger Robot #endif /* CRT_HAS_128BIT */
43