diff options
Diffstat (limited to 'test/Unit/absvdi2_test.c')
-rw-r--r-- | test/Unit/absvdi2_test.c | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/test/Unit/absvdi2_test.c b/test/Unit/absvdi2_test.c new file mode 100644 index 000000000000..5974f9ca764a --- /dev/null +++ b/test/Unit/absvdi2_test.c @@ -0,0 +1,65 @@ +//===-- absvdi2_test.c - Test __absvdi2 -----------------------------------===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// +// +// This file tests __absvdi2 for the compiler_rt library. +// +//===----------------------------------------------------------------------===// + +#include "int_lib.h" +#include <stdio.h> +#include <stdlib.h> + +// Returns: absolute value + +// Effects: aborts if abs(x) < 0 + +di_int __absvdi2(di_int a); + +int test__absvdi2(di_int a) +{ + di_int x = __absvdi2(a); + di_int expected = a; + if (expected < 0) + expected = -expected; + if (x != expected || expected < 0) + printf("error in __absvdi2(0x%llX) = %lld, expected positive %lld\n", + a, x, expected); + return x != expected; +} + +int main() +{ +// if (test__absvdi2(0x8000000000000000LL)) // should abort +// return 1; + if (test__absvdi2(0x0000000000000000LL)) + return 1; + if (test__absvdi2(0x0000000000000001LL)) + return 1; + if (test__absvdi2(0x0000000000000002LL)) + return 1; + if (test__absvdi2(0x7FFFFFFFFFFFFFFELL)) + return 1; + if (test__absvdi2(0x7FFFFFFFFFFFFFFFLL)) + return 1; + if (test__absvdi2(0x8000000000000001LL)) + return 1; + if (test__absvdi2(0x8000000000000002LL)) + return 1; + if (test__absvdi2(0xFFFFFFFFFFFFFFFELL)) + return 1; + if (test__absvdi2(0xFFFFFFFFFFFFFFFFLL)) + return 1; + + int i; + for (i = 0; i < 10000; ++i) + if (test__absvdi2(((di_int)rand() << 32) | rand())) + return 1; + + return 0; +} |