1// REQUIRES-ANY: arm-target-arch,armv6m-target-arch 2// RUN: %clang_builtins %s %librt -o %t && %run %t 3//===-- aeabi_idivmod_test.c - Test __aeabi_idivmod -----------------------===// 4// 5// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 6// See https://llvm.org/LICENSE.txt for license information. 7// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 8// 9//===----------------------------------------------------------------------===// 10// 11// This file tests __aeabi_idivmod for the compiler_rt library. 12// 13//===----------------------------------------------------------------------===// 14 15#include "int_lib.h" 16#include <stdio.h> 17 18#if __arm__ 19// Based on divmodsi4_test.c 20 21extern du_int __aeabi_idivmod(si_int a, si_int b); 22 23int test__aeabi_idivmod(si_int a, si_int b, 24 si_int expected_result, si_int expected_rem) 25{ 26 si_int rem; 27 du_int ret = __aeabi_idivmod(a, b); 28 rem = ret >> 32; 29 si_int result = ret & 0xFFFFFFFF; 30 if (result != expected_result) { 31 printf("error in __aeabi_idivmod: %d / %d = %d, expected %d\n", 32 a, b, result, expected_result); 33 return 1; 34 } 35 if (rem != expected_rem) { 36 printf("error in __aeabi_idivmod: %d mod %d = %d, expected %d\n", 37 a, b, rem, expected_rem); 38 return 1; 39 } 40 41 return 0; 42} 43#endif 44 45 46int main() 47{ 48#if __arm__ 49 if (test__aeabi_idivmod(0, 1, 0, 0)) 50 return 1; 51 if (test__aeabi_idivmod(0, -1, 0, 0)) 52 return 1; 53 54 if (test__aeabi_idivmod(2, 1, 2, 0)) 55 return 1; 56 if (test__aeabi_idivmod(2, -1, -2, 0)) 57 return 1; 58 if (test__aeabi_idivmod(-2, 1, -2, 0)) 59 return 1; 60 if (test__aeabi_idivmod(-2, -1, 2, 0)) 61 return 1; 62 63 if (test__aeabi_idivmod(7, 5, 1, 2)) 64 return 1; 65 if (test__aeabi_idivmod(-7, 5, -1, -2)) 66 return 1; 67 if (test__aeabi_idivmod(19, 5, 3, 4)) 68 return 1; 69 if (test__aeabi_idivmod(19, -5, -3, 4)) 70 return 1; 71 72 if (test__aeabi_idivmod(0x80000000, 8, 0xf0000000, 0)) 73 return 1; 74 if (test__aeabi_idivmod(0x80000007, 8, 0xf0000001, -1)) 75 return 1; 76#else 77 printf("skipped\n"); 78#endif 79 80 return 0; 81} 82