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1// RUN: %clang_builtins %s %librt -o %t && %run %t2// REQUIRES: librt_has_divmodti43// REQUIRES: int1284//===-- divmodti4_test.c - Test __divmodti4 -------------------------------===//5//6// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.7// See https://llvm.org/LICENSE.txt for license information.8// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception9//10//===----------------------------------------------------------------------===//11//12// This file tests __divmodti4 for the compiler_rt library.13//14//===----------------------------------------------------------------------===//15 16#include "int_lib.h"17#include <stdio.h>18 19#ifdef CRT_HAS_128BIT20 21// Effects: if rem != 0, *rem = a % b22// Returns: a / b23 24COMPILER_RT_ABI ti_int __divmodti4(ti_int a, ti_int b, ti_int* rem);25 26int test__divmodti4(ti_int a, ti_int b, ti_int expected_q, ti_int expected_r) {27 ti_int r;28 ti_int q = __divmodti4(a, b, &r);29 if (q != expected_q || r != expected_r)30 {31 utwords at;32 at.all = a;33 utwords bt;34 bt.all = b;35 utwords expected_qt;36 expected_qt.all = expected_q;37 utwords expected_rt;38 expected_rt.all = expected_r;39 utwords qt;40 qt.all = q;41 utwords rt;42 rt.all = r;43 printf("error in __divmodti4: 0x%.16llX%.16llX / 0x%.16llX%.16llX = "44 "0x%.16llX%.16llX, R = 0x%.16llX%.16llX, expected 0x%.16llX%.16llX, "45 "0x%.16llX%.16llX\n",46 at.s.high, at.s.low, bt.s.high, bt.s.low, qt.s.high, qt.s.low,47 rt.s.high, rt.s.low, expected_qt.s.high, expected_qt.s.low,48 expected_rt.s.high, expected_rt.s.low);49 }50 return !(q == expected_q && r == expected_r);51}52 53char assumption_1[sizeof(ti_int) == 2*sizeof(di_int)] = {0};54 55tu_int tests[][4] =56{57{ (ti_int) 0, (ti_int) 1, (ti_int) 0, (ti_int) 0 },58{ (ti_int) 0, (ti_int)-1, (ti_int) 0, (ti_int) 0 },59{ (ti_int) 2, (ti_int) 1, (ti_int) 2, (ti_int) 0 },60{ (ti_int) 2, (ti_int)-1, (ti_int)-2, (ti_int) 0 },61{ (ti_int)-2, (ti_int) 1, (ti_int)-2, (ti_int) 0 },62{ (ti_int)-2, (ti_int)-1, (ti_int) 2, (ti_int) 0 },63{ (ti_int) 5, (ti_int) 3, (ti_int) 1, (ti_int) 2 },64{ (ti_int) 5, (ti_int)-3, (ti_int)-1, (ti_int) 2 },65{ (ti_int)-5, (ti_int) 3, (ti_int)-1, (ti_int)-2 },66{ (ti_int)-5, (ti_int)-3, (ti_int) 1, (ti_int)-2 },67{ (ti_int)0x8000000000000000ULL << 64 | 0, (ti_int) 1, (ti_int)0x8000000000000000ULL << 64 | 0, (ti_int)0x0LL },68{ (ti_int)0x8000000000000000ULL << 64 | 0, (ti_int)-1, (ti_int)0x8000000000000000ULL << 64 | 0, (ti_int)0x0LL },69{ (ti_int)0x8000000000000000ULL << 64 | 0, (ti_int)-2, (ti_int)0x4000000000000000ULL << 64 | 0, (ti_int)0x0LL },70{ (ti_int)0x8000000000000000ULL << 64 | 0, (ti_int) 2, (ti_int)0xC000000000000000ULL << 64 | 0, (ti_int)0x0LL },71{ (ti_int)0x8000000000000000ULL << 64 | 0, (ti_int)-3, (ti_int)0x2AAAAAAAAAAAAAAAULL << 64 | 0xAAAAAAAAAAAAAAAAULL, (ti_int)-2 },72{ (ti_int)0x8000000000000000ULL << 64 | 0, (ti_int) 3, (ti_int)0xD555555555555555ULL << 64 | 0x5555555555555556ULL, (ti_int)-2 },73};74 75#endif76 77int main()78{79#ifdef CRT_HAS_128BIT80 const unsigned N = sizeof(tests) / sizeof(tests[0]);81 unsigned i;82 for (i = 0; i < N; ++i)83 if (test__divmodti4(tests[i][0], tests[i][1], tests[i][2], tests[i][3]))84 return 1;85 86 87#else88 printf("skipped\n");89#endif90 return 0;91}92