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1//===-- cmpdi2.c - Implement __cmpdi2 -------------------------------------===//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-exception6//7//===----------------------------------------------------------------------===//8//9// This file implements __cmpdi2 for the compiler_rt library.10//11//===----------------------------------------------------------------------===//12 13#include "int_lib.h"14 15// Returns: if (a < b) returns 016// if (a == b) returns 117// if (a > b) returns 218 19COMPILER_RT_ABI si_int __cmpdi2(di_int a, di_int b) {20 dwords x;21 x.all = a;22 dwords y;23 y.all = b;24 if (x.s.high < y.s.high)25 return 0;26 if (x.s.high > y.s.high)27 return 2;28 if (x.s.low < y.s.low)29 return 0;30 if (x.s.low > y.s.low)31 return 2;32 return 1;33}34 35#ifdef __ARM_EABI__36// Returns: if (a < b) returns -137// if (a == b) returns 038// if (a > b) returns 139COMPILER_RT_ABI si_int __aeabi_lcmp(di_int a, di_int b) {40 return __cmpdi2(a, b) - 1;41}42#endif43