1 //===-- mulosi4_test.c - Test __mulosi4 -----------------------------------===// 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 __mulosi4 for the compiler_rt library. 11 // 12 //===----------------------------------------------------------------------===// 13 14 #include "int_lib.h" 15 #include <stdio.h> 16 17 // Returns: a * b 18 19 // Effects: aborts if a * b overflows 20 21 COMPILER_RT_ABI si_int __mulosi4(si_int a, si_int b, int *overflow); 22 23 int test__mulosi4(si_int a, si_int b, si_int expected, int expected_overflow) 24 { 25 int ov; 26 si_int x = __mulosi4(a, b, &ov); 27 if (ov != expected_overflow) 28 printf("error in __mulosi4: overflow=%d expected=%d\n", 29 ov, expected_overflow); 30 else if (!expected_overflow && x != expected) { 31 printf("error in __mulosi4: 0x%X * 0x%X = 0x%X (overflow=%d), " 32 "expected 0x%X (overflow=%d)\n", 33 a, b, x, ov, expected, expected_overflow); 34 return 1; 35 } 36 return 0; 37 } 38 39 40 int main() 41 { 42 if (test__mulosi4(0, 0, 0, 0)) 43 return 1; 44 if (test__mulosi4(0, 1, 0, 0)) 45 return 1; 46 if (test__mulosi4(1, 0, 0, 0)) 47 return 1; 48 if (test__mulosi4(0, 10, 0, 0)) 49 return 1; 50 if (test__mulosi4(10, 0, 0, 0)) 51 return 1; 52 if (test__mulosi4(0, 0x1234567, 0, 0)) 53 return 1; 54 if (test__mulosi4(0x1234567, 0, 0, 0)) 55 return 1; 56 57 if (test__mulosi4(0, -1, 0, 0)) 58 return 1; 59 if (test__mulosi4(-1, 0, 0, 0)) 60 return 1; 61 if (test__mulosi4(0, -10, 0, 0)) 62 return 1; 63 if (test__mulosi4(-10, 0, 0, 0)) 64 return 1; 65 if (test__mulosi4(0, -0x1234567, 0, 0)) 66 return 1; 67 if (test__mulosi4(-0x1234567, 0, 0, 0)) 68 return 1; 69 70 if (test__mulosi4(1, 1, 1, 0)) 71 return 1; 72 if (test__mulosi4(1, 10, 10, 0)) 73 return 1; 74 if (test__mulosi4(10, 1, 10, 0)) 75 return 1; 76 if (test__mulosi4(1, 0x1234567, 0x1234567, 0)) 77 return 1; 78 if (test__mulosi4(0x1234567, 1, 0x1234567, 0)) 79 return 1; 80 81 if (test__mulosi4(1, -1, -1, 0)) 82 return 1; 83 if (test__mulosi4(1, -10, -10, 0)) 84 return 1; 85 if (test__mulosi4(-10, 1, -10, 0)) 86 return 1; 87 if (test__mulosi4(1, -0x1234567, -0x1234567, 0)) 88 return 1; 89 if (test__mulosi4(-0x1234567, 1, -0x1234567, 0)) 90 return 1; 91 92 if (test__mulosi4(0x7FFFFFFF, -2, 0x80000001, 1)) 93 return 1; 94 if (test__mulosi4(-2, 0x7FFFFFFF, 0x80000001, 1)) 95 return 1; 96 if (test__mulosi4(0x7FFFFFFF, -1, 0x80000001, 0)) 97 return 1; 98 if (test__mulosi4(-1, 0x7FFFFFFF, 0x80000001, 0)) 99 return 1; 100 if (test__mulosi4(0x7FFFFFFF, 0, 0, 0)) 101 return 1; 102 if (test__mulosi4(0, 0x7FFFFFFF, 0, 0)) 103 return 1; 104 if (test__mulosi4(0x7FFFFFFF, 1, 0x7FFFFFFF, 0)) 105 return 1; 106 if (test__mulosi4(1, 0x7FFFFFFF, 0x7FFFFFFF, 0)) 107 return 1; 108 if (test__mulosi4(0x7FFFFFFF, 2, 0x80000001, 1)) 109 return 1; 110 if (test__mulosi4(2, 0x7FFFFFFF, 0x80000001, 1)) 111 return 1; 112 113 if (test__mulosi4(0x80000000, -2, 0x80000000, 1)) 114 return 1; 115 if (test__mulosi4(-2, 0x80000000, 0x80000000, 1)) 116 return 1; 117 if (test__mulosi4(0x80000000, -1, 0x80000000, 1)) 118 return 1; 119 if (test__mulosi4(-1, 0x80000000, 0x80000000, 1)) 120 return 1; 121 if (test__mulosi4(0x80000000, 0, 0, 0)) 122 return 1; 123 if (test__mulosi4(0, 0x80000000, 0, 0)) 124 return 1; 125 if (test__mulosi4(0x80000000, 1, 0x80000000, 0)) 126 return 1; 127 if (test__mulosi4(1, 0x80000000, 0x80000000, 0)) 128 return 1; 129 if (test__mulosi4(0x80000000, 2, 0x80000000, 1)) 130 return 1; 131 if (test__mulosi4(2, 0x80000000, 0x80000000, 1)) 132 return 1; 133 134 if (test__mulosi4(0x80000001, -2, 0x80000001, 1)) 135 return 1; 136 if (test__mulosi4(-2, 0x80000001, 0x80000001, 1)) 137 return 1; 138 if (test__mulosi4(0x80000001, -1, 0x7FFFFFFF, 0)) 139 return 1; 140 if (test__mulosi4(-1, 0x80000001, 0x7FFFFFFF, 0)) 141 return 1; 142 if (test__mulosi4(0x80000001, 0, 0, 0)) 143 return 1; 144 if (test__mulosi4(0, 0x80000001, 0, 0)) 145 return 1; 146 if (test__mulosi4(0x80000001, 1, 0x80000001, 0)) 147 return 1; 148 if (test__mulosi4(1, 0x80000001, 0x80000001, 0)) 149 return 1; 150 if (test__mulosi4(0x80000001, 2, 0x80000000, 1)) 151 return 1; 152 if (test__mulosi4(2, 0x80000001, 0x80000000, 1)) 153 return 1; 154 155 return 0; 156 } 157
