Streaming SIMD Extensions 4 Instructions

The Visual C++ compiler makes the following Streaming SIMD Extensions 4 (SSE4) available. These intrinsics are part of the SSE4.1 or SSE4.2 sets. With all instrinsics, you must ensure that the underlying processor supports the instruction before you use it. Use the __cpuid instruction to determine what functionality your processor supports.

Each of these SSE4.1 intrinsics blends two parameters together:

• _mm_blend_epi16

• _mm_blend_pd

• _mm_blend_ps

• _mm_blendv_epi8

• _mm_blendv_pd

• _mm_blendv_ps

This group of SSE4.1 intrinsics perform rounding:

• _mm_ceil_pd

• _mm_ceil_ps

• _mm_ceil_sd

• _mm_ceil_ss

• _mm_floor_pd

• _mm_floor_ps

• _mm_floor_sd

• _mm_floor_ss

• _mm_round_pd

• _mm_round_ps

• _mm_round_sd

• _mm_round_ss

This SSE4.1 intrinsic compares parameters:

• _mm_cmpeq_epi64

These SSE4.2 intrinsics compare parameters:

• _mm_cmpestra

• _mm_cmpestrc

• _mm_cmpestri

• _mm_cmpestrm

• _mm_cmpestro

• _mm_cmpestrs

• _mm_cmpestrz

• _mm_cmpgt_epi64

• _mm_cmpistra

• _mm_cmpistrc

• _mm_cmpistri

• _mm_cmpistrm

• _mm_cmpistro

• _mm_cmpistrs

• _mm_cmpistrz

These SSE4.1 intrinsics convert parameters from one type to another:

• _mm_cvtepi8_epi16

• _mm_cvtepi8_epi32

• _mm_cvtepi8_epi64

• _mm_cvtepi16_epi32

• _mm_cvtepi16_epi64

• _mm_cvtepi32_epi64

• _mm_cvtepu8_epi16

• _mm_cvtepu8_epi32

• _mm_cvtepu8_epi64

• _mm_cvtepu16_epi32

• _mm_cvtepu16_epi64

• _mm_cvtepu32_epi64

• _mm_packus_epi32

These SSE4.1 intrinsics perform arithmetic operations:

• _mm_dp_pd

• _mm_dp_ps

• _mm_mpsadbw_epu8

• _mm_mul_epi32

• _mm_mullo_epi32

These SSE4.2 intrinsics perform arithmetic operations:

• _mm_crc32_u8

• _mm_crc32_u16

• _mm_crc32_u32

• _mm_crc32_u64

The following SSE4.1 intrinsics extract individual bits from packed parameters:

• _mm_extract_epi8

• _mm_extract_epi32

• _mm_extract_epi64

• _mm_extract_ps

These SSE4.1 intrinsics insert bits into packed parameters:

• _mm_insert_epi8

• _mm_insert_epi32

• _mm_insert_epi64

• _mm_insert_ps

These SSE4.1 intrinsics retrieve either the maximum or minimum set of bits from packed parameters:

• _mm_max_epi8

• _mm_max_epi32

• _mm_max_epu16

• _mm_max_epu32

• _mm_min_epi8

• _mm_min_epi32

• _mm_min_epu16

• _mm_min_epu32

• _mm_minpos_epu16

These are miscellaneous SSE4.1 intinsics:

• _mm_stream_load_si128

• _mm_testc_si128

• _mm_testnzc_si128

• _mm_testz_si128

These are miscellaneous SSE4.2 intrinsics:

• _mm_popcnt_u32

• _mm_popcnt_u64

See Also

Concepts

Compiler Intrinsics