freebsd.h: Only enable unaligned access for armv6 on FreeBSD 11 and above.

2016-06-14  Andreas Tobler  <andreast@gcc.gnu.org>

    * config/arm/freebsd.h: Only enable unaligned access for armv6 on
    FreeBSD 11 and above.

From-SVN: r237457

gcc/ChangeLog

+2016-06-14  Andreas Tobler  <andreast@gcc.gnu.org>
+
+	* config/arm/freebsd.h: Only enable unaligned access for armv6 on
+	FreeBSD 11 and above.
+
 2016-06-14  Uros Bizjak  <ubizjak@gmail.com>
 
 	* config/i386/i386.md (signbittf2): Emit sse_movmskps for TARGET_SSE.

gcc/config/arm/freebsd.h

@@ -120,6 +120,9 @@
 #define SUBTARGET_CPU_DEFAULT   TARGET_CPU_arm9
 #endif
 
+/* FreeBSD 10 does not support unaligned access for armv6 and up.
+   Unaligned access support was added in FreeBSD 11.  */
+#if FBSD_MAJOR < 11
 #define SUBTARGET_OVERRIDE_INTERNAL_OPTIONS				\
 do {									\
     if (opts_set->x_unaligned_access == 1)				\
@@ -127,6 +130,7 @@ do {									\
     if (opts->x_unaligned_access)					\
 	opts->x_unaligned_access = 0;					\
 } while (0)
+#endif
 
 #undef MAX_SYNC_LIBFUNC_SIZE
 #define MAX_SYNC_LIBFUNC_SIZE 4 /* UNITS_PER_WORD not defined yet.  */