--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/testsuite/gcc.dg/builtins-37.c	Fri Oct 27 22:46:09 2017 +0900
@@ -0,0 +1,29 @@
+/* Copyright (C) 2004 Free Software Foundation.
+
+   Check tan, tanf and tanl built-in functions.
+
+   Written by Uros Bizjak, 7th April 2004.  */
+
+/* { dg-do compile } */
+/* { dg-options "-O2 -ffast-math" } */
+
+extern double tan(double);
+extern float tanf(float);
+extern long double tanl(long double);
+
+
+double test1(double x)
+{
+  return tan(x);
+}
+
+float test1f(float x)
+{
+  return tanf(x);
+}
+
+long double test1l(long double x)
+{
+  return tanl(x);
+}
+