Add missing intrinsics for _mm_mask[z]_sqrt_round_[sd,ss]

Add missing intrinsics for _mm_mask[z]_sqrt_round_[sd,ss]

gcc/
	* config/i386/avx512fintrin.h (_mm_mask_sqrt_round_sd)
	(_mm_maskz_sqrt_round_sd, _mm_mask_sqrt_round_ss)
	(_mm_maskz_sqrt_round_ss): New intrinsics.
	(__builtin_ia32_sqrtsd_round, __builtin_ia32_sqrtss_round): Remove.
	(__builtin_ia32_sqrtsd_mask_round)
	(__builtin_ia32_sqrtss_mask_round): New builtins.
	* config/i386/i386-builtin.def (__builtin_ia32_sqrtsd_round)
	(__builtin_ia32_sqrtss_round): Remove.
	(__builtin_ia32_sqrtsd_mask_round)
	(__builtin_ia32_sqrtss_mask_round): New builtins.
	* config/i386/sse.md (vmsqrt<mode>2<round_name>): Renamed to ...
	(vmsqrt<mode>2<mask_scalar_name><round_scalar_name>): ... this.
	((match_operand:VF_128 1 "vector_operand"
	"xBm,<round_constraint>")): Changed to ...
	((match_operand:VF_128 1 "vector_operand"
	"xBm,<round_scalar_constraint>")): ... this.
	(vsqrt<ssescalarmodesuffix>\t{<round_op3>%1, %2, %0|
	%0, %2, %<iptr>1<round_op3>}): Changed to ...
	(vsqrt<ssescalarmodesuffix>\t{<round_scalar_mask_op3>%1, %2,
	%0<mask_scalar_operand3>|%0<mask_scalar_operand3>, %2,
	%<iptr>1<round_scalar_mask_op3>}): ... this.
	((set_attr "prefix" "<round_prefix>")): Changed to ...
	((set_attr "prefix" "<round_scalar_prefix>")): ... this.

gcc/testsuite/
	* gcc.target/i386/avx512f-vsqrtsd-1.c (_mm_mask_sqrt_round_sd)
	(_mm_maskz_sqrt_round_sd): Test new intrinsics.
	* gcc.target/i386/avx512f-vsqrtsd-2.c (_mm_sqrt_round_sd)
	(_mm_mask_sqrt_round_sd, _mm_maskz_sqrt_round_sd): Test new intrinsics.
	* gcc.target/i386/avx512f-vsqrtss-1.c (_mm_mask_sqrt_round_ss)
	(_mm_maskz_sqrt_round_ss): Test new intrinsics.
	* gcc.target/i386/avx512f-vsqrtss-2.c (_mm_sqrt_round_ss)
	(_mm_mask_sqrt_round_ss,      _mm_maskz_sqrt_round_ss): Test new
	intrinsics.
	* gcc.target/i386/avx-1.c (__builtin_ia32_sqrtsd_round)
	(__builtin_ia32_sqrtss_round): Remove builtins.
	(__builtin_ia32_sqrtsd_mask_round)
	(__builtin_ia32_sqrtss_mask_round): Test new builtins.
	* gcc.target/i386/sse-13.c: Ditto.
	* gcc.target/i386/sse-23.c: Ditto.

From-SVN: r257576