[patch] FreeBSD armv6 unaligned access

[Andreas Tobler]

Hi all,

FreeBSD 11 will bring unaligned access support for armv6 and up.
This patch enables it.
If no objection I'll commit it to trunk, gcc-6 branch and gcc-5 branch 
in the next days.

Thanks,
Andreas

2016-06-10  Andreas Tobler  <andre...@gcc.gnu.org>

        * config/arm/freebsd.h: Enable unaligned access for armv6 on
        FreeBSD 11.
Index: config/arm/freebsd.h
===================================================================
--- config/arm/freebsd.h        (revision 237314)
+++ config/arm/freebsd.h        (working copy)
@@ -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 @@
     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.  */