[PATCH][x86] Add missing intrinsics for ADD[SD,SS] and SUB[SD,SS]

[Peryt, Sebastian]

Hi,

This patch adds missing intrinsics for ADDSD, ADDSS, SUBSD and SUBSS instructions.

gcc/
	* config/i386/avx512fintrin.h (_mm_mask_add_round_sd, 
	_mm_maskz_add_round_sd, _mm_mask_add_round_ss,
	_mm_maskz_add_round_ss, _mm_mask_sub_round_sd,
	_mm_maskz_sub_round_sd, _mm_mask_sub_round_ss,
	_mm_maskz_sub_round_ss, _mm_mask_add_sd,
	_mm_maskz_add_sd, _mm_mask_add_ss, _mm_maskz_add_ss,
	_mm_mask_sub_sd, _mm_maskz_sub_sd, _mm_mask_sub_ss,
	_mm_maskz_sub_ss): New intrinsics.
	* config/i386/i386-builtin-types.def (V2DF_FTYPE_V2DF_V2DF_V2DF_UQI_INT,
	V4SF_FTYPE_V4SF_V4SF_V4SF_UQI_INT): New function type aliases.
	* config/i386/i386-builtin.def (__builtin_ia32_addsd_mask_round,
	__builtin_ia32_addss_mask_round, __builtin_ia32_subsd_mask_round,
	__builtin_ia32_subss_mask_round): New builtins.
	* config/i386/i386.c (V2DF_FTYPE_V2DF_V2DF_V2DF_UQI_INT,
	V4SF_FTYPE_V4SF_V4SF_V4SF_UQI_INT): Handle new types.
	* config/i386/sse.md (<sse>_vm<plusminus_insn><mode>3<round_name>): Renamed to	...
	(<sse>_vm<plusminus_insn><mode>3<mask_name><round_name>): ... this.
	(v<plusminus_mnemonic><ssescalarmodesuffix>\t{<round_op3>%2, %1, %0|%0, %1, %<iptr>2<round_op3>}): Changed to ...
	(v<plusminus_mnemonic><ssescalarmodesuffix>\t{<round_mask_op3>%2, %1, %0<mask_operand3>|%0<mask_operand3>, %1, %<iptr>2<round_mask_op3>}): ... this.
	
gcc/testsuite/
	* gcc.target/i386/avx512f-vaddsd-1.c (_mm_mask_add_sd,
	_mm_maskz_add_sd, _mm_mask_add_round_sd,
	_mm_maskz_add_round_sd): Test new intrinsics.
	* gcc.target/i386/avx512f-vaddsd-2.c: New.
	* gcc.target/i386/avx512f-vaddss-1.c (_mm_mask_add_ss,
	_mm_maskz_add_ss, _mm_mask_add_round_ss,
	_mm_maskz_add_round_ss): Test new intrinsics.
	* gcc.target/i386/avx512f-vaddss-2.c: New.
	* gcc.target/i386/avx512f-vsubsd-1.c (_mm_mask_sub_sd,
	_mm_maskz_sub_sd, _mm_mask_sub_round_sd,
	_mm_maskz_sub_round_sd): Test new intrinsics.
	* gcc.target/i386/avx512f-vsubsd-2.c: New.
	* gcc.target/i386/avx512f-vsubss-1.c (_mm_mask_sub_ss,
	_mm_maskz_sub_ss, _mm_mask_sub_round_ss,
	_mm_maskz_sub_round_ss): Test new intrinsics.
	* gcc.target/i386/avx512f-vsubss-2.c: New.
	* gcc.target/i386/avx-1.c (__builtin_ia32_addsd_mask_round,
	__builtin_ia32_addss_mask_round, __builtin_ia32_subsd_mask_round,
	__builtin_ia32_subss_mask_round): Test new builtins.
	* gcc.target/i386/sse-13.c: Ditto.
	* gcc.target/i386/sse-23.c: Ditto.
	* gcc.target/i386/sse-14.c (_mm_maskz_add_round_sd,
	_mm_maskz_add_round_ss, _mm_maskz_sub_round_sd,
	_mm_maskz_sub_round_ss, _mm_mask_add_round_sd,
	_mm_mask_add_round_ss, _mm_mask_sub_round_sd,
	_mm_mask_sub_round_ss): Test new intrinsics.
	* gcc.target/i386/testround-1.c: Ditto.

Is it ok for trunk?

Sebastian
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