Adjust predicates and constraints of scalar insns.

Adjust predicates and constraints of scalar insns.

Changelog

gcc/
	* config/i386/sse.md
	(<sse>_vm<plusminus_insn><mode>3<mask_scalar_name><round_scalar_name>,
	<sse>_vm<multdiv_mnemonic><mode>3<mask_scalar_name><round_scalar_name>,
	<sse>_vmsqrt<mode>2<mask_scalar_name><round_scalar_name>,
	<sse>_vm<code><mode>3<mask_scalar_name><round_saeonly_scalar_name>,
	<sse>_vmmaskcmp<mode>3):
	Change predicates from vector_operand to nonimmediate_operand,
	constraints xBm to xm, since scalar operations don't need
	memory address alignment.
	(avx512f_vmcmp<mode>3<round_saeonly_name>,
	avx512f_vmcmp<mode>3_mask<round_saeonly_name>): Replace
	round_saeonly_nimm_predicate with
	round_saeonly_nimm_scalar_predicate.
	(fmai_vmfmadd_<mode><round_name>, fmai_vmfmsub_<mode><round_name>,
	fmai_vmfnmadd_<mode><round_name>,fmai_vmfnmsub_<mode><round_name>,
	*fmai_fmadd_<mode>, *fmai_fmsub_<mode>,
	*fmai_fnmadd_<mode><round_name>, *fmai_fnmsub_<mode><round_name>,
	avx512f_vmfmadd_<mode>_mask3<round_name>,
	avx512f_vmfmadd_<mode>_maskz_1<round_name>,
	*avx512f_vmfmsub_<mode>_mask<round_name>,
	avx512f_vmfmsub_<mode>_mask3<round_name>,
	*avx512f_vmfmsub_<mode>_maskz_1<round_name>,
	*avx512f_vmfnmadd_<mode>_mask<round_name>,
	*avx512f_vmfnmadd_<mode>_mask3<round_name>,
	*avx512f_vmfnmadd_<mode>_maskz_1<round_name>,
	*avx512f_vmfnmsub_<mode>_mask<round_name>,
	*avx512f_vmfnmsub_<mode>_mask3<round_name>,
	*avx512f_vmfnmsub_<mode>_maskz_1<round_name>,
	cvtusi2<ssescalarmodesuffix>32<round_name>,
	cvtusi2<ssescalarmodesuffix>64<round_name>, ): Replace
	round_nimm_predicate with round_nimm_scalr_predicate.
	(avx512f_sfixupimm<mode><sd_maskz_name><round_saeonly_name>,
	avx512f_sfixupimm<mode>_mask<round_saeonly_name>,
	avx512er_vmrcp28<mode><round_saeonly_name>,
	avx512er_vmrsqrt28<mode><round_saeonly_name>,
	): Replace round_saeonly_nimm_predicate with
	round_saeonly_nimm_scalar_predicate.
	(avx512dq_vmfpclass<mode><mask_scalar_merge_name>): Replace
	vector_operand with nonimmediate_operand.
	* config/i386/subst.md (round_scalar_nimm_predicate,
	round_saeonly_scalar_nimm_predicate): Replace
	vector_operand with nonimmediate_operand.

From-SVN: r277470