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

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

	PR target/54089
	* config/sh/constraints.md (Jhb): New constraint.
	* config/sh/predicates.md (negt_reg_shl31_operand): New predicate.
	* config/sh/sh.md (rotrsi3): New expander.
	(rotrsi3_1, *rotrsi3_1, *rotlsi3_1): New insns.
	(rotlsi3, rotlhi3): Use const_int_operand predicate instead of
	immediate_operand and remove CONST_INT_P checks in expansion code.
	(*rotcr): Cleanup variable usage.  Handle preceding nott insn.  Add
	split with swapped operands.
	(*rotcr_neg_t, *movt_msb, *negt_msb): New insns and splits.

	PR target/54089
	* gcc.target/sh/pr54089-1.c (test_15, test_16, test_17, test_18,
	test_19, test_20, test_21, test_22, test_23): New functions.
	* gcc.target/sh/pr54089-4.c: New.
	* gcc.target/sh/pr54089-5.c: New.
	* gcc.target/sh/pr54089-6.c: New.
	* gcc.target/sh/pr54089-7.c: New.

From-SVN: r191743