1 files changed, 26 insertions, 0 deletions
diff --git a/lib/libcompiler_rt/negdi2.c b/lib/libcompiler_rt/negdi2.c
new file mode 100644
index 00000000000..3d49ba2899d
--- /dev/null
+++ b/lib/libcompiler_rt/negdi2.c
@@ -0,0 +1,26 @@
+/* ===-- negdi2.c - Implement __negdi2 -------------------------------------===
+ *
+ *                     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 __negdi2 for the compiler_rt library.
+ *
+ * ===----------------------------------------------------------------------===
+ */
+
+#include "int_lib.h"
+
+/* Returns: -a */
+
+COMPILER_RT_ABI di_int
+__negdi2(di_int a)
+{
+    /* Note: this routine is here for API compatibility; any sane compiler
+     * should expand it inline.
+     */
+    return -a;
+}