1 //===-- divti3_test.c - Test __divti3 -------------------------------------===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is dual licensed under the MIT and the University of Illinois Open 6 // Source Licenses. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 // 10 // This file tests __divti3 for the compiler_rt library. 11 // 12 //===----------------------------------------------------------------------===// 13 14 #if __x86_64 15 16 #include "int_lib.h" 17 #include <stdio.h> 18 19 // Returns: a / b 20 21 ti_int __divti3(ti_int a, ti_int b); 22 23 int test__divti3(ti_int a, ti_int b, ti_int expected) 24 { 25 ti_int x = __divti3(a, b); 26 if (x != expected) 27 { 28 twords at; 29 at.all = a; 30 twords bt; 31 bt.all = b; 32 twords xt; 33 xt.all = x; 34 twords expectedt; 35 expectedt.all = expected; 36 printf("error in __divti3: 0x%llX%.16llX / 0x%llX%.16llX = " 37 "0x%llX%.16llX, expected 0x%llX%.16llX\n", 38 at.s.high, at.s.low, bt.s.high, bt.s.low, xt.s.high, xt.s.low, 39 expectedt.s.high, expectedt.s.low); 40 } 41 return x != expected; 42 } 43 44 char assumption_1[sizeof(ti_int) == 2*sizeof(di_int)] = {0}; 45 46 #endif 47 48 int main() 49 { 50 #if __x86_64 51 if (test__divti3(0, 1, 0)) 52 return 1; 53 if (test__divti3(0, -1, 0)) 54 return 1; 55 56 if (test__divti3(2, 1, 2)) 57 return 1; 58 if (test__divti3(2, -1, -2)) 59 return 1; 60 if (test__divti3(-2, 1, -2)) 61 return 1; 62 if (test__divti3(-2, -1, 2)) 63 return 1; 64 65 if (test__divti3(make_ti(0x8000000000000000LL, 0), 1, make_ti(0x8000000000000000LL, 0))) 66 return 1; 67 if (test__divti3(make_ti(0x8000000000000000LL, 0), -1, make_ti(0x8000000000000000LL, 0))) 68 return 1; 69 if (test__divti3(make_ti(0x8000000000000000LL, 0), -2, make_ti(0x4000000000000000LL, 0))) 70 return 1; 71 if (test__divti3(make_ti(0x8000000000000000LL, 0), 2, make_ti(0xC000000000000000LL, 0))) 72 return 1; 73 74 #else 75 printf("skipped\n"); 76 #endif 77 return 0; 78 } 79
