| // RUN: %clang_builtins %s %librt -o %t && %run %t |
| // REQUIRES: librt_has_mulosi4 |
| |
| #include "int_lib.h" |
| #include <stdio.h> |
| |
| // Returns: a * b |
| |
| // Effects: aborts if a * b overflows |
| |
| COMPILER_RT_ABI si_int __mulosi4(si_int a, si_int b, int *overflow); |
| |
| int test__mulosi4(si_int a, si_int b, si_int expected, int expected_overflow) |
| { |
| int ov; |
| si_int x = __mulosi4(a, b, &ov); |
| if (ov != expected_overflow) |
| printf("error in __mulosi4: overflow=%d expected=%d\n", |
| ov, expected_overflow); |
| else if (!expected_overflow && x != expected) { |
| printf("error in __mulosi4: 0x%X * 0x%X = 0x%X (overflow=%d), " |
| "expected 0x%X (overflow=%d)\n", |
| a, b, x, ov, expected, expected_overflow); |
| return 1; |
| } |
| return 0; |
| } |
| |
| |
| int main() |
| { |
| if (test__mulosi4(0, 0, 0, 0)) |
| return 1; |
| if (test__mulosi4(0, 1, 0, 0)) |
| return 1; |
| if (test__mulosi4(1, 0, 0, 0)) |
| return 1; |
| if (test__mulosi4(0, 10, 0, 0)) |
| return 1; |
| if (test__mulosi4(10, 0, 0, 0)) |
| return 1; |
| if (test__mulosi4(0, 0x1234567, 0, 0)) |
| return 1; |
| if (test__mulosi4(0x1234567, 0, 0, 0)) |
| return 1; |
| |
| if (test__mulosi4(0, -1, 0, 0)) |
| return 1; |
| if (test__mulosi4(-1, 0, 0, 0)) |
| return 1; |
| if (test__mulosi4(0, -10, 0, 0)) |
| return 1; |
| if (test__mulosi4(-10, 0, 0, 0)) |
| return 1; |
| if (test__mulosi4(0, -0x1234567, 0, 0)) |
| return 1; |
| if (test__mulosi4(-0x1234567, 0, 0, 0)) |
| return 1; |
| |
| if (test__mulosi4(1, 1, 1, 0)) |
| return 1; |
| if (test__mulosi4(1, 10, 10, 0)) |
| return 1; |
| if (test__mulosi4(10, 1, 10, 0)) |
| return 1; |
| if (test__mulosi4(1, 0x1234567, 0x1234567, 0)) |
| return 1; |
| if (test__mulosi4(0x1234567, 1, 0x1234567, 0)) |
| return 1; |
| |
| if (test__mulosi4(1, -1, -1, 0)) |
| return 1; |
| if (test__mulosi4(1, -10, -10, 0)) |
| return 1; |
| if (test__mulosi4(-10, 1, -10, 0)) |
| return 1; |
| if (test__mulosi4(1, -0x1234567, -0x1234567, 0)) |
| return 1; |
| if (test__mulosi4(-0x1234567, 1, -0x1234567, 0)) |
| return 1; |
| |
| if (test__mulosi4(0x7FFFFFFF, -2, 0x80000001, 1)) |
| return 1; |
| if (test__mulosi4(-2, 0x7FFFFFFF, 0x80000001, 1)) |
| return 1; |
| if (test__mulosi4(0x7FFFFFFF, -1, 0x80000001, 0)) |
| return 1; |
| if (test__mulosi4(-1, 0x7FFFFFFF, 0x80000001, 0)) |
| return 1; |
| if (test__mulosi4(0x7FFFFFFF, 0, 0, 0)) |
| return 1; |
| if (test__mulosi4(0, 0x7FFFFFFF, 0, 0)) |
| return 1; |
| if (test__mulosi4(0x7FFFFFFF, 1, 0x7FFFFFFF, 0)) |
| return 1; |
| if (test__mulosi4(1, 0x7FFFFFFF, 0x7FFFFFFF, 0)) |
| return 1; |
| if (test__mulosi4(0x7FFFFFFF, 2, 0x80000001, 1)) |
| return 1; |
| if (test__mulosi4(2, 0x7FFFFFFF, 0x80000001, 1)) |
| return 1; |
| |
| if (test__mulosi4(0x80000000, -2, 0x80000000, 1)) |
| return 1; |
| if (test__mulosi4(-2, 0x80000000, 0x80000000, 1)) |
| return 1; |
| if (test__mulosi4(0x80000000, -1, 0x80000000, 1)) |
| return 1; |
| if (test__mulosi4(-1, 0x80000000, 0x80000000, 1)) |
| return 1; |
| if (test__mulosi4(0x80000000, 0, 0, 0)) |
| return 1; |
| if (test__mulosi4(0, 0x80000000, 0, 0)) |
| return 1; |
| if (test__mulosi4(0x80000000, 1, 0x80000000, 0)) |
| return 1; |
| if (test__mulosi4(1, 0x80000000, 0x80000000, 0)) |
| return 1; |
| if (test__mulosi4(0x80000000, 2, 0x80000000, 1)) |
| return 1; |
| if (test__mulosi4(2, 0x80000000, 0x80000000, 1)) |
| return 1; |
| |
| if (test__mulosi4(0x80000001, -2, 0x80000001, 1)) |
| return 1; |
| if (test__mulosi4(-2, 0x80000001, 0x80000001, 1)) |
| return 1; |
| if (test__mulosi4(0x80000001, -1, 0x7FFFFFFF, 0)) |
| return 1; |
| if (test__mulosi4(-1, 0x80000001, 0x7FFFFFFF, 0)) |
| return 1; |
| if (test__mulosi4(0x80000001, 0, 0, 0)) |
| return 1; |
| if (test__mulosi4(0, 0x80000001, 0, 0)) |
| return 1; |
| if (test__mulosi4(0x80000001, 1, 0x80000001, 0)) |
| return 1; |
| if (test__mulosi4(1, 0x80000001, 0x80000001, 0)) |
| return 1; |
| if (test__mulosi4(0x80000001, 2, 0x80000000, 1)) |
| return 1; |
| if (test__mulosi4(2, 0x80000001, 0x80000000, 1)) |
| return 1; |
| |
| return 0; |
| } |
