Initial import of compiler-rt.

 -


git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@74292 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 80 insertions, 0 deletions

diff --git a/test/Unit/absvti2_test.c b/test/Unit/absvti2_test.c
new file mode 100644
index 000000000..3dd39e61f
--- /dev/null
+++ b/test/Unit/absvti2_test.c
@@ -0,0 +1,80 @@
+//===-- absvti2_test.c - Test __absvti2 -----------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file tests __absvti2 for the compiler_rt library.
+//
+//===----------------------------------------------------------------------===//
+
+#if __x86_64
+
+#include "int_lib.h"
+#include <stdio.h>
+
+// Returns: absolute value
+
+// Effects: aborts if abs(x) < 0
+
+ti_int __absvti2(ti_int a);
+
+int test__absvti2(ti_int a)
+{
+    ti_int x = __absvti2(a);
+    ti_int expected = a;
+    if (expected < 0)
+        expected = -expected;
+    if (x != expected || expected < 0)
+    {
+        twords at;
+        at.all = a;
+        twords xt;
+        xt.all = x;
+        twords expectedt;
+        expectedt.all = expected;
+        printf("error in __absvti2(0x%llX%.16llX) = "
+               "0x%llX%.16llX, expected positive 0x%llX%.16llX\n",
+               at.high, at.low, xt.high, xt.low, expectedt.high, expectedt.low);
+    }
+    return x != expected;
+}
+
+#endif
+
+int main()
+{
+#if __x86_64
+
+//     if (test__absvti2(make_ti(0x8000000000000000LL, 0)))  // should abort
+//         return 1;
+    if (test__absvti2(0x0000000000000000LL))
+        return 1;
+    if (test__absvti2(0x0000000000000001LL))
+        return 1;
+    if (test__absvti2(0x0000000000000002LL))
+        return 1;
+    if (test__absvti2(make_ti(0x7FFFFFFFFFFFFFFFLL, 0xFFFFFFFFFFFFFFFELL)))
+        return 1;
+    if (test__absvti2(make_ti(0x7FFFFFFFFFFFFFFFLL, 0xFFFFFFFFFFFFFFFFLL)))
+        return 1;
+    if (test__absvti2(make_ti(0x8000000000000000LL, 0x0000000000000001LL)))
+        return 1;
+    if (test__absvti2(make_ti(0x8000000000000000LL, 0x0000000000000002LL)))
+        return 1;
+    if (test__absvti2(make_ti(0xFFFFFFFFFFFFFFFFLL, 0xFFFFFFFFFFFFFFFELL)))
+        return 1;
+    if (test__absvti2(make_ti(0xFFFFFFFFFFFFFFFFLL, 0xFFFFFFFFFFFFFFFFLL)))
+        return 1;
+
+    int i;
+    for (i = 0; i < 10000; ++i)
+        if (test__absvti2(make_ti(((ti_int)rand() << 32) | rand(),
+                                  ((ti_int)rand() << 32) | rand())))
+            return 1;
+#endif
+    return 0;
+}