1 files changed, 29 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/builtins-17.c b/gcc/testsuite/gcc.dg/builtins-17.c
new file mode 100644
index 000000000..a9e21fba8
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/builtins-17.c
@@ -0,0 +1,29 @@
+/* Copyright (C) 2003 Free Software Foundation.
+
+   Check that constant folding of built-in math functions doesn't
+   break anything and produces the expected results.
+
+   Written by Roger Sayle, 25th May 2003.  */
+
+/* { dg-do link } */
+/* { dg-options "-O2 -ffast-math" } */
+
+extern void link_error(void);
+
+extern double exp(double);
+extern double atan(double);
+
+int main()
+{
+  if (exp (1.0) < 2.71 || exp (1.0) > 2.72)
+    link_error ();
+  if (exp (2.0) < 7.38 || exp (2.0) > 7.39)
+    link_error ();
+  if (exp (-2.0) < 0.13 || exp (-2.0) > 0.14)
+    link_error ();
+  if (atan (1.0) < 0.78 || atan (1.0) > 0.79)
+    link_error ();
+
+  return 0;
+}
+