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Diffstat (limited to 'test/Unit/absvsi2_test.c')
-rw-r--r-- | test/Unit/absvsi2_test.c | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/test/Unit/absvsi2_test.c b/test/Unit/absvsi2_test.c new file mode 100644 index 00000000..5584a804 --- /dev/null +++ b/test/Unit/absvsi2_test.c @@ -0,0 +1,64 @@ +//===-- absvsi2_test.c - Test __absvsi2 -----------------------------------===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// +// +// This file tests __absvsi2 for the compiler_rt library. +// +//===----------------------------------------------------------------------===// + +#include "int_lib.h" +#include <stdio.h> + +// Returns: absolute value + +// Effects: aborts if abs(x) < 0 + +si_int __absvsi2(si_int a); + +int test__absvsi2(si_int a) +{ + si_int x = __absvsi2(a); + si_int expected = a; + if (expected < 0) + expected = -expected; + if (x != expected || expected < 0) + printf("error in __absvsi2(0x%X) = %d, expected positive %d\n", + a, x, expected); + return x != expected; +} + +int main() +{ +// if (test__absvsi2(0x80000000)) // should abort +// return 1; + if (test__absvsi2(0x00000000)) + return 1; + if (test__absvsi2(0x00000001)) + return 1; + if (test__absvsi2(0x00000002)) + return 1; + if (test__absvsi2(0x7FFFFFFE)) + return 1; + if (test__absvsi2(0x7FFFFFFF)) + return 1; + if (test__absvsi2(0x80000001)) + return 1; + if (test__absvsi2(0x80000002)) + return 1; + if (test__absvsi2(0xFFFFFFFE)) + return 1; + if (test__absvsi2(0xFFFFFFFF)) + return 1; + + int i; + for (i = 0; i < 10000; ++i) + if (test__absvsi2(rand())) + return 1; + + return 0; +} |