--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/testsuite/gcc.dg/builtins-33.c	Fri Oct 27 22:46:09 2017 +0900
@@ -0,0 +1,65 @@
+/* Copyright (C) 2004 Free Software Foundation.
+
+   Check that log10, log10f, log10l, log2, log2f and log2l
+   built-in functions compile.
+
+   Written by Uros Bizjak, 11th February 2004.  */
+
+/* { dg-do compile } */
+/* { dg-options "-O2 -ffast-math" } */
+
+extern double log10(double);
+extern double log2(double);
+extern double log1p(double);
+extern float log10f(float);
+extern float log2f(float);
+extern float log1pf(float);
+extern long double log10l(long double);
+extern long double log2l(long double);
+extern long double log1pl(long double);
+
+
+double test1(double x)
+{
+  return log10(x);
+}
+
+double test2(double x)
+{
+  return log2(x);
+}
+
+double test3(double x)
+{
+  return log1p(x);
+}
+
+float test1f(float x)
+{
+  return log10f(x);
+}
+
+float test2f(float x)
+{
+  return log2f(x);
+}
+
+float test3f(float x)
+{
+  return log1pf(x);
+}
+
+long double test1l(long double x)
+{
+  return log10l(x);
+}
+
+long double test2l(long double x)
+{
+  return log2l(x);
+}
+
+long double test3l(long double x)
+{
+  return log1pl(x);
+}