re PR target/54089 ([SH] Refactor shift patterns)

re PR target/54089 ([SH] Refactor shift patterns)

	PR target/54089
	* config/sh/predicates.md (shift_count_operand): Handle not-SHMEDIA
	case.
	(p27_shift_count_operand, not_p27_shift_count_operand): New predicates.
	* config/sh/sh.md (ashlsi3): Remove parallel and T_REG clobber
	from expander.  Do not emit shift insn for not-SHMEDIA case.
	(ashlsi3_std): Replace with ...
	(ashlsi3_k, ashlsi3_d): ... these new insns.
	* config/sh/sh.c (gen_ashift): Make static.  Add sanity checks.
	Emit ashlsi3_k insn instead of ashlsi3_std in ASHIFT case.
	(gen_ashift_hi): Make static.
	* config/sh/sh-protos.h (gen_ashift, gen_ashift_hi): Remove forward
	declaration.

From-SVN: r189872