PR target/39423
	* config/sh/predicates.md (mem_index_disp_operand): New predicate.
	* config/sh/sh.md (*movsi_index_disp): Rewrite insns to use the new
	mem_index_disp_operand predicate.

	PR target/39423
	* gcc.target/sh/pr39423-1.c: New.

From-SVN: r190259