builtin-cproj-3.c: New.

        * gcc.dg/torture/builtin-cproj-3.c: New.

From-SVN: r158588

gcc/testsuite/ChangeLog

+2010-04-21  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
+
+	* gcc.dg/torture/builtin-cproj-3.c: New.
+
 2010-04-20  Jason Merrill  <jason@redhat.com>
 
 	PR c++/9335

gcc/testsuite/gcc.dg/torture/builtin-cproj-3.c

+/* Copyright (C) 2010  Free Software Foundation.
+
+   Check the runtime behavior of the C library's cproj() function and
+   whether it follows the standard.  Versions of GLIBC through 2.11.1
+   had an incorrect implementation which will conflict with GCC's
+   builtin cproj().  GLIBC 2.12+ should be okay.
+
+   Origin: Kaveh R. Ghazi,  April 20, 2010.  */
+
+/* { dg-do run } */
+/* { dg-options "-fno-builtin-cproj" } */
+/* { dg-add-options c99_runtime } */
+/* { dg-require-effective-target c99_runtime } */
+
+extern void abort(void);
+extern void exit(int);
+double _Complex cproj(double _Complex);
+
+int main (void)
+{
+  if (cproj (2+3i) != 2+3i)
+    abort();
+
+  exit(0);
+}