[AArch64] Fix force_simd macro in vdup_lane_2

gcc/

	* gcc.target/aarch64/vdup_lane_2.c (force_simd): Emit simd mov.

From-SVN: r215260

gcc/testsuite/ChangeLog

+2014-09-14  David Sherwood  <david.sherwood@arm.com>
+
+	* gcc.target/aarch64/vdup_lane_2.c (force_simd): Emit simd mov.
+
 2014-09-14  James Clarke  <jrtc27@jrtc27.com>
 
 	PR target/61407

gcc/testsuite/gcc.target/aarch64/vdup_lane_2.c

@@ -4,10 +4,10 @@
 
 #include <arm_neon.h>
 
-#define force_simd(V1)   asm volatile (""	\
-          : "=w"(V1)				\
-          : "w"(V1)				\
-          : /* No clobbers */)
+#define force_simd(V1) asm volatile ("mov %d0, %1.d[0]" \
+         : "=w"(V1)                                     \
+         : "w"(V1)                                      \
+         : /* No clobbers */)
 
 extern void abort (void);