Scalar mask and round RTL templates

Scalar mask and round RTL templates

gcc/
	* config/i386/subst.md (mask_scalar, round_scalar,
	round_saeonly_scalar): New meta-templates.
	(mask_scalar_name, mask_scalar_operand3, round_scalar_name,
	round_scalar_mask_operand3, round_scalar_mask_op3,
	round_scalar_constraint, round_scalar_prefix, round_saeonly_scalar_name,
	round_saeonly_scalar_mask_operand3, round_saeonly_scalar_mask_op3,
	round_saeonly_scalar_constraint,
	round_saeonly_scalar_prefix): New subst attribute.
	* config/i386/sse.md
	(<sse>_vm<plusminus_insn><mode>3<mask_name><round_name>): Renamed to ...
	<sse>_vm<plusminus_insn><mode>3<mask_scalar_name>
	<round_scalar_name> ... this.
	(<sse>_vm<multdiv_mnemonic><mode>3<mask_name><round_name>): Renamed to ...
	<sse>_vm<multdiv_mnemonic><mode>3<mask_scalar_name>
	<round_scalar_name> ... this.
	(<sse>_vm<code><mode>3<mask_name><round_saeonly_name>): Renamed to ...
	<sse>_vm<code><mode>3<mask_scalar_name>
	<round_saeonly_scalar_name> ... this.
	(v<plusminus_mnemonic><ssescalarmodesuffix>
	\t{<round_mask_op3>%2, %1, %0<mask_operand3>|
	%0<mask_operand3>, %1, %<iptr>2<round_mask_op3>}): Changed to ...
	v<plusminus_mnemonic><ssescalarmodesuffix>
	\t{<round_scalar_mask_op3>%2, %1, %0<mask_scalar_operand3>|
	%0<mask_scalar_operand3>, %1, %<iptr>2<round_scalar_mask_op3>} ... this.
	(v<multdiv_mnemonic><ssescalarmodesuffix>
	\t{<round_mask_op3>%2, %1, %0<mask_operand3>|
	%0<mask_operand3>, %1, %<iptr>2<round_mask_op3>}): Changed to ...
	v<multdiv_mnemonic><ssescalarmodesuffix>
	\t{<round_scalar_mask_op3>%2, %1, %0<mask_scalar_operand3>|
	%0<mask_scalar_operand3>, %1, %<iptr>2<round_scalar_mask_op3>} ... this.
	(v<maxmin_float><ssescalarmodesuffix>
	\t{<round_saeonly_mask_op3>%2, %1, %0<mask_operand3>|
	%0<mask_operand3>, %1, %<iptr>2<round_saeonly_mask_op3>}): Changed to ...
	v<maxmin_float><ssescalarmodesuffix>
	\t{<round_saeonly_scalar_mask_op3>%2, %1, %0<mask_scalar_operand3>|
	%0<mask_scalar_operand3>, %1, %<iptr>2
	<round_saeonly_scalar_mask_op3>} ... this.

gcc/testsuite/
	* gcc.target/i386/avx512f-vaddsd-3.c: New test for mask 0 verification.
	* gcc.target/i386/avx512f-vaddss-3.c: Ditto.
	* gcc.target/i386/avx512f-vdivsd-3.c: Ditto.
	* gcc.target/i386/avx512f-vdivss-3.c: Ditto.
	* gcc.target/i386/avx512f-vmaxsd-3.c: Ditto.
	* gcc.target/i386/avx512f-vmaxss-3.c: Ditto.
	* gcc.target/i386/avx512f-vminsd-3.c: Ditto.
	* gcc.target/i386/avx512f-vminss-3.c: Ditto.
	* gcc.target/i386/avx512f-vmulsd-3.c: Ditto.
	* gcc.target/i386/avx512f-vmulss-3.c: Ditto.
	* gcc.target/i386/avx512f-vsubsd-3.c: Ditto.
	* gcc.target/i386/avx512f-vsubss-3.c: Ditto.

From-SVN: r250006