re PR rtl-optimization/49114 ([x32] Reload failed to handle (set reg:X (plus:X (subreg:X (reg:Y) 0) (const_int))))

	PR rtl-optimization/49114
	* reload.c (push_reload): Define in_subreg_loc and out_subreg_loc
	only if LIMIT_RELOAD_CLASS to avoid -Werror build breaks.

From-SVN: r175652