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author | Alexey Samsonov <samsonov@google.com> | 2014-02-14 09:47:31 +0000 |
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committer | Alexey Samsonov <samsonov@google.com> | 2014-02-14 09:47:31 +0000 |
commit | 8c1441f86037d62f8e164cc458dff8b91d015998 (patch) | |
tree | 8aa7b78ce697409ce5d162355de9541229af167c /compiler-rt/test/builtins/Unit/parityti2_test.c | |
parent | edc95ee196946ce8f744ea8fb2bdb1cfbade8156 (diff) | |
download | bcm5719-llvm-8c1441f86037d62f8e164cc458dff8b91d015998.tar.gz bcm5719-llvm-8c1441f86037d62f8e164cc458dff8b91d015998.zip |
Move tests for BlocksRuntime and builtins to corresponding directories under test/
llvm-svn: 201396
Diffstat (limited to 'compiler-rt/test/builtins/Unit/parityti2_test.c')
-rw-r--r-- | compiler-rt/test/builtins/Unit/parityti2_test.c | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/compiler-rt/test/builtins/Unit/parityti2_test.c b/compiler-rt/test/builtins/Unit/parityti2_test.c new file mode 100644 index 00000000000..ac67b35669a --- /dev/null +++ b/compiler-rt/test/builtins/Unit/parityti2_test.c @@ -0,0 +1,64 @@ +//===-- parityti2_test.c - Test __parityti2 -------------------------------===// +// +// The LLVM Compiler Infrastructure +// +// This file is dual licensed under the MIT and the University of Illinois Open +// Source Licenses. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// +// +// This file tests __parityti2 for the compiler_rt library. +// +//===----------------------------------------------------------------------===// + +#if __x86_64 + +#include "int_lib.h" +#include <stdio.h> +#include <stdlib.h> + +// Returns: 1 if number of bits is odd else returns 0 + +si_int __parityti2(ti_int a); + +int naive_parity(ti_int a) +{ + int r = 0; + for (; a; a = a & (a - 1)) + r = ~r; + return r & 1; +} + +int test__parityti2(ti_int a) +{ + si_int x = __parityti2(a); + si_int expected = naive_parity(a); + if (x != expected) + { + twords at; + at.all = a; + printf("error in __parityti2(0x%.16llX%.16llX) = %d, expected %d\n", + at.s.high, at.s.low, x, expected); + } + return x != expected; +} + +char assumption_1[sizeof(ti_int) == 2*sizeof(di_int)] = {0}; +char assumption_2[sizeof(di_int)*CHAR_BIT == 64] = {0}; + +#endif + +int main() +{ +#if __x86_64 + int i; + for (i = 0; i < 10000; ++i) + if (test__parityti2(((ti_int)rand() << 96) + ((ti_int)rand() << 64) + + ((ti_int)rand() << 32) + rand())) + return 1; + +#else + printf("skipped\n"); +#endif + return 0; +} |