1*3cab2bb3Spatrick //===-- cmpdi2.c - Implement __cmpdi2 -------------------------------------===// 2*3cab2bb3Spatrick // 3*3cab2bb3Spatrick // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4*3cab2bb3Spatrick // See https://llvm.org/LICENSE.txt for license information. 5*3cab2bb3Spatrick // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6*3cab2bb3Spatrick // 7*3cab2bb3Spatrick //===----------------------------------------------------------------------===// 8*3cab2bb3Spatrick // 9*3cab2bb3Spatrick // This file implements __cmpdi2 for the compiler_rt library. 10*3cab2bb3Spatrick // 11*3cab2bb3Spatrick //===----------------------------------------------------------------------===// 12*3cab2bb3Spatrick 13*3cab2bb3Spatrick #include "int_lib.h" 14*3cab2bb3Spatrick 15*3cab2bb3Spatrick // Returns: if (a < b) returns 0 16*3cab2bb3Spatrick // if (a == b) returns 1 17*3cab2bb3Spatrick // if (a > b) returns 2 18*3cab2bb3Spatrick __cmpdi2(di_int a,di_int b)19*3cab2bb3SpatrickCOMPILER_RT_ABI si_int __cmpdi2(di_int a, di_int b) { 20*3cab2bb3Spatrick dwords x; 21*3cab2bb3Spatrick x.all = a; 22*3cab2bb3Spatrick dwords y; 23*3cab2bb3Spatrick y.all = b; 24*3cab2bb3Spatrick if (x.s.high < y.s.high) 25*3cab2bb3Spatrick return 0; 26*3cab2bb3Spatrick if (x.s.high > y.s.high) 27*3cab2bb3Spatrick return 2; 28*3cab2bb3Spatrick if (x.s.low < y.s.low) 29*3cab2bb3Spatrick return 0; 30*3cab2bb3Spatrick if (x.s.low > y.s.low) 31*3cab2bb3Spatrick return 2; 32*3cab2bb3Spatrick return 1; 33*3cab2bb3Spatrick } 34*3cab2bb3Spatrick 35*3cab2bb3Spatrick #ifdef __ARM_EABI__ 36*3cab2bb3Spatrick // Returns: if (a < b) returns -1 37*3cab2bb3Spatrick // if (a == b) returns 0 38*3cab2bb3Spatrick // if (a > b) returns 1 __aeabi_lcmp(di_int a,di_int b)39*3cab2bb3SpatrickCOMPILER_RT_ABI si_int __aeabi_lcmp(di_int a, di_int b) { 40*3cab2bb3Spatrick return __cmpdi2(a, b) - 1; 41*3cab2bb3Spatrick } 42*3cab2bb3Spatrick #endif 43