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Diffstat (limited to 'test/Unit/negvdi2_test.c')
-rw-r--r-- | test/Unit/negvdi2_test.c | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/test/Unit/negvdi2_test.c b/test/Unit/negvdi2_test.c new file mode 100644 index 000000000000..7fef4d97c941 --- /dev/null +++ b/test/Unit/negvdi2_test.c @@ -0,0 +1,57 @@ +//===-- negvdi2_test.c - Test __negvdi2 -----------------------------------===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// +// +// This file tests __negvdi2 for the compiler_rt library. +// +//===----------------------------------------------------------------------===// + +#include "int_lib.h" +#include <stdio.h> + +// Returns: -a + +// Effects: aborts if -a overflows + +di_int __negvdi2(di_int a); + +int test__negvdi2(di_int a) +{ + di_int x = __negvdi2(a); + di_int expected = -a; + if (x != expected) + printf("error in __negvdi2(0x%llX) = %lld, expected %lld\n", + a, x, expected); + return x != expected; +} + +int main() +{ +// if (test__negvdi2(0x8000000000000000LL)) // should abort +// return 1; + if (test__negvdi2(0x0000000000000000LL)) + return 1; + if (test__negvdi2(0x0000000000000001LL)) + return 1; + if (test__negvdi2(0x0000000000000002LL)) + return 1; + if (test__negvdi2(0x7FFFFFFFFFFFFFFELL)) + return 1; + if (test__negvdi2(0x7FFFFFFFFFFFFFFFLL)) + return 1; + if (test__negvdi2(0x8000000000000001LL)) + return 1; + if (test__negvdi2(0x8000000000000002LL)) + return 1; + if (test__negvdi2(0xFFFFFFFFFFFFFFFELL)) + return 1; + if (test__negvdi2(0xFFFFFFFFFFFFFFFFLL)) + return 1; + + return 0; +} |