Use native tune. nehalem is not able to triggle the issue in trunk any more.

2014-11-28  Renlin Li  <renlin.li@arm.com>

	PR  target/63661
	* gcc.target/i386/pr63661.c: Use native tune.

From-SVN: r218144

gcc/testsuite/ChangeLog

-2014-11-27  Renlin Li  <renlin.li@arm.com>
+2014-11-28  Renlin Li  <renlin.li@arm.com>
+
+	PR target/63661
+	* gcc.target/i386/pr63661.c: Use native tune.
+
+2014-11-28  Renlin Li  <renlin.li@arm.com>
 
 	PR target/63661
 	* gcc.target/i386/pr63661.c: New test.

gcc/testsuite/gcc.target/i386/pr63661.c

 /* PR target/63661 */
 /* { dg-do run } */
 /* { dg-require-effective-target fpic } */
-/* { dg-options "-mtune=nehalem -fPIC -O2" } */
+/* { dg-options "-mtune=native -fPIC -O2" } */
 
 static void __attribute__((noinline,noclone,hot))
 foo (double a, double q, double *ff, double *gx, int e, int ni)