1 //===-- cmpti2.c - Implement __cmpti2 -------------------------------------===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 // 9 // This file implements __cmpti2 for the compiler_rt library. 10 // 11 //===----------------------------------------------------------------------===// 12 13 #include "int_lib.h" 14 15 #ifdef CRT_HAS_128BIT 16 17 // Returns: if (a < b) returns 0 18 // if (a == b) returns 1 19 // if (a > b) returns 2 20 21 COMPILER_RT_ABI si_int __cmpti2(ti_int a, ti_int b) { 22 twords x; 23 x.all = a; 24 twords y; 25 y.all = b; 26 if (x.s.high < y.s.high) 27 return 0; 28 if (x.s.high > y.s.high) 29 return 2; 30 if (x.s.low < y.s.low) 31 return 0; 32 if (x.s.low > y.s.low) 33 return 2; 34 return 1; 35 } 36 37 #endif // CRT_HAS_128BIT 38