1 files changed, 42 insertions, 0 deletions
diff --git a/contrib/compiler-rt/lib/builtins/ucmpti2.c b/contrib/compiler-rt/lib/builtins/ucmpti2.c
new file mode 100644
index 000000000000..bda8083bb2a1
--- /dev/null
+++ b/contrib/compiler-rt/lib/builtins/ucmpti2.c
@@ -0,0 +1,42 @@
+/* ===-- ucmpti2.c - Implement __ucmpti2 -----------------------------------===
+ *
+ *                     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 implements __ucmpti2 for the compiler_rt library.
+ *
+ * ===----------------------------------------------------------------------===
+ */
+
+#include "int_lib.h"
+
+#ifdef CRT_HAS_128BIT
+
+/* Returns:  if (a <  b) returns 0
+ *           if (a == b) returns 1
+ *           if (a >  b) returns 2
+ */
+
+COMPILER_RT_ABI si_int
+__ucmpti2(tu_int a, tu_int b)
+{
+    utwords x;
+    x.all = a;
+    utwords y;
+    y.all = b;
+    if (x.s.high < y.s.high)
+        return 0;
+    if (x.s.high > y.s.high)
+        return 2;
+    if (x.s.low < y.s.low)
+        return 0;
+    if (x.s.low > y.s.low)
+        return 2;
+    return 1;
+}
+
+#endif /* CRT_HAS_128BIT */