re PR target/91124 (gcc.target/i386/avx512vl-vpshldvd-2.c etc. FAIL)

	PR target/91124
	* config/i386/sse.md (sse2_cvtpd2dq<mask_name>): Change into ...
	(sse2_cvtpd2dq): ... this.  Remove mask substitution macros.
	(sse2_cvtpd2dq_mask, sse2_cvtpd2dq_mask_1): New define_insns.
	(ufix_notruncv2dfv2si2<mask_name>): Change into ...
	(ufix_notruncv2dfv2si2): ... this.  Remove mask substitution macros.
	(ufix_notruncv2dfv2si2_mask, ufix_notruncv2dfv2si2_mask_1): New
	define_insns.
	(ufix_truncv2dfv2si2<mask_name>): Change into ...
	(ufix_truncv2dfv2si2): ... this.  Remove mask substitution macros.
	(ufix_truncv2dfv2si2_mask, ufix_truncv2dfv2si2_mask_1): New
	define_insns.
	(sse2_cvttpd2dq<mask_name>): Change into ...
	(sse2_cvttpd2dq): ... this.  Remove mask substitution macros.
	(sse2_cvttpd2dq_mask, sse2_cvttpd2dq_mask_1): New define_insns.
	(*sse2_cvtpd2dq<mask_name>): Change into ...
	(*sse2_cvtpd2dq): ... this.  Remove mask substitution macros.
	Add "C" constraint to const0_operand.
	(*sse2_cvtpd2dq_mask, *sse2_cvtpd2dq_mask_1): New define_insns.
	(sse2_cvtpd2ps_mask): Adjust expand to match *sse2_cvtpd2ps_mask
	changes.

From-SVN: r273409