| 1 | /* ===-- cmpti2.c - Implement __cmpti2 -------------------------------------=== |
| 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 __cmpti2 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 | __cmpti2(ti_int a, ti_int b) |
| 26 | { |
| 27 | twords x; |
| 28 | x.all = a; |
| 29 | twords 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 | |