Add a testcase for PR target/65217

	PR target/65217
	* gcc.target/i386/pr65217.c: New.

From-SVN: r221010

gcc/testsuite/ChangeLog

+2015-02-26  H.J. Lu  <hongjiu.lu@intel.com>
+
+	PR target/65217
+	* gcc.target/i386/pr65217.c: New.
+
 2015-02-26  Tom de Vries  <tom@codesourcery.com>
 
 	* lib/dg-pch.exp (pch-init): Add missing cleanup of pchtest<n>.o.

gcc/testsuite/gcc.target/i386/pr65217.c

+/* { dg-do compile } */
+/* { dg-options "-O" } */
+/* { dg-final { scan-assembler-not "negl" } } */
+/* { dg-final { scan-assembler-not "andl" } } */
+
+int 
+test(int n)
+{
+  if ((n & -n) != n)
+    __builtin_unreachable();
+  return n;
+}