vendor/compiler-rt/compiler-rt-r224034

1 files changed, 60 insertions, 0 deletions

diff --git a/test/builtins/Unit/subvdi3_test.c b/test/builtins/Unit/subvdi3_test.c
new file mode 100644
index 0000000000000..0fb8f51568967
--- /dev/null
+++ b/test/builtins/Unit/subvdi3_test.c
@@ -0,0 +1,60 @@
+//===-- subvdi3_test.c - Test __subvdi3 -----------------------------------===//
+//
+//                     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 __subvdi3 for the compiler_rt library.
+//
+//===----------------------------------------------------------------------===//
+
+#include "int_lib.h"
+#include <stdio.h>
+#include <stdlib.h>
+
+// Returns: a - b
+
+// Effects: aborts if a - b overflows
+
+di_int __subvdi3(di_int a, di_int b);
+
+int test__subvdi3(di_int a, di_int b)
+{
+    di_int x = __subvdi3(a, b);
+    di_int expected = a - b;
+    if (x != expected)
+        printf("error in test__subvsi3(0x%llX, 0x%llX) = %lld, expected %lld\n",
+               a, b, x, expected);
+    return x != expected;
+}
+
+int main()
+{
+//     test__subvdi3(0x8000000000000000LL, 1);  // should abort
+//     test__subvdi3(0, 0x8000000000000000LL);  // should abort
+//     test__subvdi3(1, 0x8000000000000000LL);  // should abort
+//     test__subvdi3(0x7FFFFFFFFFFFFFFFLL, -1);  // should abort
+//     test__subvdi3(-2, 0x7FFFFFFFFFFFFFFFLL);  // should abort
+
+    if (test__subvdi3(0x8000000000000000LL, -1))
+        return 1;
+    if (test__subvdi3(0x8000000000000000LL, 0))
+        return 1;
+    if (test__subvdi3(-1, 0x8000000000000000LL))
+        return 1;
+    if (test__subvdi3(0x7FFFFFFFFFFFFFFLL, 1))
+        return 1;
+    if (test__subvdi3(0x7FFFFFFFFFFFFFFFLL, 0))
+        return 1;
+    if (test__subvdi3(1, 0x7FFFFFFFFFFFFFFLL))
+        return 1;
+    if (test__subvdi3(0, 0x7FFFFFFFFFFFFFFFLL))
+        return 1;
+    if (test__subvdi3(-1, 0x7FFFFFFFFFFFFFFFLL))
+        return 1;
+
+    return 0;
+}