PR rtl-optimization/58369
	* reload1.c (compute_reload_subreg_offset): New function.
	(choose_reload_regs): Use it to pass endian-correct
	offset to subreg_regno_offset.

	* PR rtl-optimization/58369
	* g++.dg/torture/pr58369.C: New test.

From-SVN: r204224