Initial import of compiler-rt.
-
llvm-svn: 74292
diff --git a/compiler-rt/test/Unit/parityti2_test.c b/compiler-rt/test/Unit/parityti2_test.c
new file mode 100644
index 0000000..7f0a946
--- /dev/null
+++ b/compiler-rt/test/Unit/parityti2_test.c
@@ -0,0 +1,62 @@
+//===-- parityti2_test.c - Test __parityti2 -------------------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. 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.high, at.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;
+
+#endif
+ return 0;
+}