Classes Quick Reference

This appendix contains tables listing the class, functionality, and corresponding intrinsics for each class in the Intel® C++ Class Libraries for SIMD Operations. The following table lists all Intel C++ Compiler intrinsics that are not implemented in the C++ SIMD classes.

Logical Operators: Corresponding Intrinsics and Classes

Operators	Corresponding Intrinsic	I128vec1, I64vec2, I32vec4, I16vec8, I8vec16	I64vec, I32vec, I16vec, I8vec8	F64vec2	F32vec4	F32vec1
&, &=	_mm_and_[x]	si128	si64	pd	ps	ps
\|, \|=	_mm_or_[x]	si128	si64	pd	ps	ps
^, ^=	_mm_xor_[x]	si128	si64	pd	ps	ps
Andnot	_mm_andnot_[x]	si128	si64	pd	N/A	N/A

Arithmetic: Corresponding Intrinsics and Classes, Part 1

Operators	Corresponding Intrinsic	I64vec2	I32vec4	I16vec8	I8vec16
+, +=	_mm_add_[x]	epi64	epi32	epi16	epi8
-, -=	_mm_sub_[x]	epi64	epi32	epi16	epi8
, =	_mm_mullo_[x]	N/A	N/A	epi16	N/A
/, /=	_mm_div_[x]	N/A	N/A	N/A	N/A
mul_high	_mm_mulhi_[x]	N/A	N/A	epi16	N/A
mul_add	_mm_madd_[x]	N/A	N/A	epi16	N/A
sqrt	_mm_sqrt_[x]	N/A	N/A	N/A	N/A
rcp	_mm_rcp_[x]	N/A	N/A	N/A	N/A
rcp_nr	_mm_rcp_[x] _mm_add_[x] _mm_sub_[x] _mm_mul_[x]	N/A	N/A	N/A	N/A
rsqrt	_mm_rsqrt_[x]	N/A	N/A	N/A	N/A
rsqrt_nr	_mm_rsqrt_[x] _mm_sub_[x] _mm_mul_[x]	N/A	N/A	N/A	N/A

Arithmetic: Corresponding Intrinsics and Classes, Part 2

Operators	Corresponding Intrinsic	I32vec2	I16vec4	I8vec8	F64vec2	F32vec4	F32vec1
+, +=	_mm_add_[x]	pi32	pi16	pi8	pd	ps	ss
-, -=	_mm_sub_[x]	pi32	pi16	pi8	pd	ps	ss
, =	_mm_mullo_[x]	N/A	pi16	N/A	pd	ps	ss
/, /=	_mm_div_[x]	N/A	N/A	N/A	pd	ps	ss
mul_high	_mm_mulhi_[x]	N/A	pi16	N/A	N/A	N/A	N/A
mul_add	_mm_madd_[x]	N/A	pi16	N/A	N/A	N/A	N/A
sqrt	_mm_sqrt_[x]	N/A	N/A	N/A	pd	ps	ss
rcp	_mm_rcp_[x]	N/A	N/A	N/A	pd	ps	ss
rcp_nr	_mm_rcp_[x] _mm_add_[x] _mm_sub_[x] _mm_mul_[x]	N/A	N/A	N/A	pd	ps	ss
rsqrt	_mm_rsqrt_[x]	N/A	N/A	N/A	pd	ps	ss
rsqrt_nr	_mm_rsqrt_[x] _mm_sub_[x] _mm_mul_[x]	N/A	N/A	N/A	pd	ps	ss

Shift Operators: Corresponding Intrinsics and Classes, Part 1

Operators	Corresponding Intrinsic	I128vec1	I64vec2	I32vec4	I16vec8	I8vec16
>>,>>=	_mm_srl_[x] _mm_srli_[x] _mm_sra__[x] _mm_srai_[x]	N/A N/A N/A N/A	epi64 epi64 N/A N/A	epi32 epi32 epi32 epi32	epi16 epi16 epi16 epi16	N/A N/A N/A N/A
<<, <<=	_mm_sll_[x] _mm_slli_[x]	N/A N/A	epi64 epi64	epi32 epi32	epi16 epi16	N/A N/A

Shift Operators: Corresponding Intrinsics and Classes, Part 2

Operators	Corresponding Intrinsic	I64vec1	I32vec2	I16vec4	I8vec8
>>,>>=	_mm_srl_[x] _mm_srli_[x] _mm_sra__[x] _mm_srai_[x]	si64 si64 N/A N/A	pi32 pi32 pi32 pi32	pi16 pi16 pi16 pi16	N/A N/A N/A N/A
<<, <<=	_mm_sll_[x] _mm_slli_[x]	si64 si64	pi32 pi32	pi16 pi16	N/A N/A

Comparison Operators: Corresponding Intrinsics and Classes, Part 1

Operators	Corresponding Intrinsic	I32vec4	I16vec8	I8vec16	I32vec2	I16vec4	I8vec8
cmpeq	_mm_cmpeq_[x]	epi32	epi16	epi8	pi32	pi16	pi8
cmpneq	_mm_cmpeq_[x] _mm_andnot_[y]*	epi32 si128	epi16 si128	epi8 si128	pi32 si64	pi16 si64	pi8 si64
cmpgt	_mm_cmpgt_[x]	epi32	epi16	epi8	pi32	pi16	pi8
cmpge	_mm_cmpge_[x] _mm_andnot_[y]*	epi32 si128	epi16 si128	epi8 si128	pi32 si64	pi16 si64	pi8 si64
cmplt	_mm_cmplt_[x]	epi32	epi16	epi8	pi32	pi16	pi8
cmple	_mm_cmple_[x] _mm_andnot_[y]*	epi32 si128	epi16 si128	epi8 si128	pi32 si64	pi16 si64	pi8 si64
cmpngt	_mm_cmpngt_[x]	epi32	epi16	epi8	pi32	pi16	pi8
cmpnge	_mm_cmpnge_[x]	N/A	N/A	N/A	N/A	N/A	N/A
cmnpnlt	_mm_cmpnlt_[x]	N/A	N/A	N/A	N/A	N/A	N/A
cmpnle	_mm_cmpnle_[x]	N/A	N/A	N/A	N/A	N/A	N/A

* Note that _mm_andnot_[y] intrinsics do not apply to the fvec classes.

Comparison Operators: Corresponding Intrinsics and Classes, Part 2

Operators	Corresponding Intrinsic	F64vec2	F32vec4	F32vec1
cmpeq	_mm_cmpeq_[x]	pd	ps	ss
cmpneq	_mm_cmpeq_[x] _mm_andnot_[y]*	pd	ps	ss
cmpgt	_mm_cmpgt_[x]	pd	ps	ss
cmpge	_mm_cmpge_[x] _mm_andnot_[y]*	pd	ps	ss
cmplt	_mm_cmplt_[x]	pd	ps	ss
cmple	_mm_cmple_[x] _mm_andnot_[y]*	pd	ps	ss
cmpngt	_mm_cmpngt_[x]	pd	ps	ss
cmpnge	_mm_cmpnge_[x]	pd	ps	ss
cmnpnlt	_mm_cmpnlt_[x]	pd	ps	ss
cmpnle	_mm_cmpnle_[x]	pd	ps	ss

Conditional Select Operators: Corresponding Intrinsics and Classes, Part 1

Operators	Corresponding Intrinsic	I32vec4	I16vec8	I8vec16	I32vec2	I16vec4	I8vec8
select_eq	_mm_cmpeq_[x] _mm_and_[y] _mm_andnot_[y]* _mm_or_[y]	epi32 si128 si128 si128	epi16 si128 si128 si128	epi8 si128 si128 si128	pi32 si64 si64 si64	pi16 si64 si64 si64	pi8 si64 si64 si64
select_neq	_mm_cmpeq_[x] _mm_and_[y] _mm_andnot_[y]* _mm_or_[y]	epi32 si128 si128 si128	epi16 si128 si128 si128	epi8 si128 si128 si128	pi32 si64 si64 si64	pi16 si64 si64 si64	pi8 si64 si64 si64
select_gt	_mm_cmpgt_[x] _mm_and_[y] _mm_andnot_[y]* _mm_or_[y]	epi32 si128 si128 si128	epi16 si128 si128 si128	epi8 si128 si128 si128	pi32 si64 si64 si64	pi16 si64 si64 si64	pi8 si64 si64 si64
select_ge	_mm_cmpge_[x] _mm_and_[y] _mm_andnot_[y]* _mm_or_[y]	epi32 si128 si128 si128	epi16 si128 si128 si128	epi8 si128 si128 si128	pi32 si64 si64 si64	pi16 si64 si64 si64	pi8 si64 si64 si64
select_lt	_mm_cmplt_[x] _mm_and_[y] _mm_andnot_[y]* _mm_or_[y]	epi32 si128 si128 si128	epi16 si128 si128 si128	epi8 si128 si128 si128	pi32 si64 si64 si64	pi16 si64 si64 si64	pi8 si64 si64 si64
select_le	_mm_cmple_[x] _mm_and_[y] _mm_andnot_[y]* _mm_or_[y]	epi32 si128 si128 si128	epi16 si128 si128 si128	epi8 si128 si128 si128	pi32 si64 si64 si64	pi16 si64 si64 si64	pi8 si64 si64 si64
select_ngt	_mm_cmpgt_[x]	N/A	N/A	N/A	N/A	N/A	N/A
select_nge	_mm_cmpge_[x]	N/A	N/A	N/A	N/A	N/A	N/A
select_nlt	_mm_cmplt_[x]	N/A	N/A	N/A	N/A	N/A	N/A
select_nle	_mm_cmple_[x]	N/A	N/A	N/A	N/A	N/A	N/A

* Note that _mm_andnot_[y] intrinsics do not apply to the fvec classes.

Conditional Select Operators: Corresponding Intrinsics and Classes, Part 2

Operators	Corresponding Intrinsic	F64vec2	F32vec4	F32vec1
select_eq	_mm_cmpeq_[x] _mm_and_[y] _mm_andnot_[y]* _mm_or_[y]	pd	ps	ss
select_neq	_mm_cmpeq_[x] _mm_and_[y] _mm_andnot_[y]* _mm_or_[y]	pd	ps	ss
select_gt	_mm_cmpgt_[x] _mm_and_[y] _mm_andnot_[y]* _mm_or_[y]	pd	ps	ss
select_ge	_mm_cmpge_[x] _mm_and_[y] _mm_andnot_[y]* _mm_or_[y]	pd	ps	ss
select_lt	_mm_cmplt_[x] _mm_and_[y] _mm_andnot_[y]* _mm_or_[y]	pd	ps	ss
select_le	_mm_cmple_[x] _mm_and_[y] _mm_andnot_[y]* _mm_or_[y]	pd	ps	ss
select_ngt	_mm_cmpgt_[x]	pd	ps	ss
select_nge	_mm_cmpge_[x]	pd	ps	ss
select_nlt	_mm_cmplt_[x]	pd	ps	ss
select_nle	_mm_cmple_[x]	pd	ps	ss

Packing and Unpacking Operators: Corresponding Intrinsics and Classes, Part 1

Operators	Corresponding Intrinsic	I64vec2	I32vec4	I16vec8	I8vec16	I32vec2
unpack_high	_mm_unpackhi_[x]	epi64	epi32	epi16	epi8	pi32
unpack_low	_mm_unpacklo_[x]	epi64	epi32	epi16	epi8	pi32
pack_sat	_mm_packs_[x]	N/A	epi32	epi16	N/A	pi32
packu_sat	_mm_packus_[x]	N/A	N/A	epi16	N/A	N/A
sat_add	_mm_adds_[x]	N/A	N/A	epi16	epi8	N/A
sat_sub	_mm_subs_[x]	N/A	N/A	epi16	epi8	N/A

Packing and Unpacking Operators: Corresponding Intrinsics and Classes, Part 2

Operators	Corresponding Intrinsic	I16vec4	I8vec8	F64vec2	F32vec4	F32vec1
unpack_high	_mm_unpackhi_[x]	pi16	pi8	pd	ps	N/A
unpack_low	_mm_unpacklo_[x]	pi16	pi8	pd	ps	N/A
pack_sat	_mm_packs_[x]	pi16	N/A	N/A	N/A	N/A
packu_sat	_mm_packus_[x]	pu16	N/A	N/A	N/A	N/A
sat_add	_mm_adds_[x]	pi16	pi8	pd	ps	ss
sat_sub	_mm_subs_[x]	pi16	pi8	pi16	pi8	pd

Conversions Operators: Corresponding Intrinsics and Classes

Operators	Corresponding Intrinsic
F64vec2ToInt	_mm_cvttsd_si32
F32vec4ToF64vec2	_mm_cvtps_pd
F64vec2ToF32vec4	_mm_cvtpd_ps
IntToF64vec2	_mm_cvtsi32_sd
F32vec4ToInt	_mm_cvtt_ss2si
F32vec4ToIs32vec2	_mm_cvttps_pi32
IntToF32vec4	_mm_cvtsi32_ss
Is32vec2ToF32vec4	_mm_cvtpi32_ps