Comparison Intrinsics (SSE2)

Microsoft Specific

The intrinsics listed in the following table are followed by their descriptions.

SSE2 intrinsics use the __m128, __m128i, and __m128d data types, which are not supported on Itanium Processor Family (IPF) processors. Any SSE2 intrinsics that use the __m64 data type are not supported on x64 processors.

The emmintrin.h header file contains the declarations for the SSE2 instructions intrinsics.

Comparison Intrinsics

Intrinsic name	Instruction	Comparison	Elements	Size of elements
_mm_cmpeq_epi8	PCMPEQB	Equality	16	8
_mm_cmpeq_epi16	PCMPEQW	Equality	8	16
_mm_cmpeq_epi32	PCMPEQD	Equality	4	32
_mm_cmpgt_epi8	PCMPGTB	Greater than	16	8
_mm_cmpgt_epi16	PCMPGTW	Greater than	8	16
_mm_cmpgt_epi32	PCMPGTD	Greater than	4	32
_mm_cmplt_epi8	PCMPGTBr	Less than	16	8
_mm_cmplt_epi16	PCMPGTWr	Less than	8	16
_mm_cmplt_epi32	PCMPGTDr	Less than	4	32

For an explanation of the syntax used in code samples in this topic, see Floating-Point Intrinsics Using Streaming SIMD Extensions.

See Also

Concepts

Integer Intrinsics Using Streaming SIMD Extensions 2