1 files changed, 42 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/builtins-8.c b/gcc/testsuite/gcc.dg/builtins-8.c
new file mode 100644
index 000000000..95c17e72f
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/builtins-8.c
@@ -0,0 +1,42 @@
+/* Copyright (C) 2003, 2006  Free Software Foundation.
+
+   Verify that built-in math function constant folding of functions
+   with one constant argument is correctly performed by the compiler.
+
+   Written by Roger Sayle, 30th March 2003.  */
+
+/* { dg-do run } */
+/* { dg-options "-O2 -ffast-math" } */
+
+extern void abort(void);
+extern double pow(double, double);
+extern double sqrt(double);
+extern double cbrt(double);
+
+void test(double x)
+{
+  if (pow(x,-1.0) != 1.0/x)
+    abort ();
+
+  if (pow(x,2.0) != x*x)
+    abort ();
+
+  if (pow(x,-2.0) != 1.0/(x*x))
+    abort ();
+
+  if (pow(x,0.5) != sqrt(x))
+    abort ();
+
+#ifdef HAVE_C99_RUNTIME
+  if (pow(x,1.0/3.0) != cbrt(x))
+    abort ();
+#endif
+}
+
+int main()
+{
+  test (1.0);
+  test (2.0);
+  return 0;
+}
+