[PATCH AArch64 1/2] Improve codegen of vector compares inc. tst instruction

[PATCH AArch64 1/2] Improve codegen of vector compares inc. tst instruction

gcc/:

	* config/aarch64/aarch64-builtins.c (aarch64_types_cmtst_qualifiers,
	TYPES_TST): Define.
	(aarch64_fold_builtin): Update pattern for cmtst.

	* config/aarch64/aarch64-protos.h (aarch64_const_vec_all_same_int_p):
	Declare.

	* config/aarch64/aarch64-simd-builtins.def (cmtst): Update qualifiers.

	* config/aarch64/aarch64-simd.md (aarch64_vcond_internal<mode><mode>):
	Switch operands, separate out more cases, refactor.

	(aarch64_cmtst<mode>): Rewrite pattern to match (plus ... -1).

	* config/aarch64.c (aarch64_const_vec_all_same_int_p): Take single
	argument; rename old version to...
	(aarch64_const_vec_all_same_in_range_p): ...this.
	(aarch64_print_operand, aarch64_simd_shift_imm_p): Follow renaming.

	* config/aarch64/predicates.md (aarch64_simd_imm_minus_one): Define.

gcc/testsuite/:

	* gcc.target/aarch64/simd/int_comparisons.x: New file.
	* gcc.target/aarch64/simd/int_comparisons_1.c: New test.
	* gcc.target/aarch64/simd/int_comparisons_2.c: Ditto.

From-SVN: r214948