Visible to Intel only — GUID: GUID-20C54D2C-D672-4DF2-87D7-6B244A1F9E23
Visible to Intel only — GUID: GUID-20C54D2C-D672-4DF2-87D7-6B244A1F9E23
Intrinsics for Reciprocal Operations (512-bit)
The prototypes for Intel® Advanced Vector Extensions 512 (Intel® AVX-512) intrinsics are located in the zmmintrin.h header file.
To use these intrinsics, include the immintrin.h file as follows:
#include <immintrin.h>
Intrinsic Name |
Operation |
Corresponding |
---|---|---|
_mm512_rcp14_pd, _mm512_mask_rcp14_pd, _mm512_maskz_rcp14_pd |
Computes the approximate reciprocal of packed float64 elements. |
VRCP14PD |
_mm512_rcp14_ps, _mm512_mask_rcp14_ps, _mm512_maskz_rcp14_ps |
Computes the approximate reciprocal of packed float32 elements. |
VRCP14PS |
_mm_rcp14_sd, _mm_mask_rcp14_sd, _mm_maskz_rcp14_sd |
Computes the approximate reciprocal of scalar float64 elements. |
VRCP14SD |
_mm_rcp14_ss, _mm_mask_rcp14_ss, _mm_maskz_rcp14_ss |
Computes the approximate reciprocal of scalar float32 elements. |
VRCP14SS |
_mm512_rcp28_pd, _mm512_mask_rcp28_pd, _mm512_maskz_rcp28_pd _mm512_rcp28_round_pd, _mm512_mask_rcp28_round_pd, _mm512_maskz_rcp28_round_pd |
Computes the approximate reciprocal of packed float64 elements with bounded relative error. |
VRCP28PD |
_mm_rcp28_sd, _mm_mask_rcp28_sd, _mm_maskz_rcp28_sd _mm_rcp28_round_sd, _mm_mask_rcp28_round_sd, _mm_maskz_rcp28_round_sd |
Computes the approximate reciprocal of scalar float64 elements with bounded relative error. |
VRCP28SD |
_mm512_rcp28_ps, _mm512_mask_rcp28_ps, _mm512_maskz_rcp28_ps _mm512_rcp28_round_ps, _mm512_mask_rcp28_round_ps, _mm512_maskz_rcp28_round_ps |
Computes the approximate reciprocal of packed float32 elements with bounded relative error. |
VRCP28PS |
_mm_rcp28_ss, _mm_mask_rcp28_ss, _mm_maskz_rcp28_ss _mm_rcp28_round_ss, _mm_mask_rcp28_round_ss, _mm_maskz_rcp28_round_ss |
Computes the approximate reciprocal of scalar float32 elements with bounded relative error. |
VRCP28SS |
_mm512_recip_pd, _mm512_mask_recip_pd |
Computes the approximate reciprocal of packed float64 elements. |
None. |
_mm512_recip_ps, _mm512_mask_recip_ps |
Computes the approximate reciprocal of packed float32 elements. |
None. |
variable | definition |
---|---|
k | writemask used as a selector |
a | first source vector element |
b | second source vector element |
src | source element to use based on writemask result |
_mm512_rcp14_pd
extern __m512d __cdecl _mm512_rcp14_pd(__m512d a);
Computes the approximate reciprocal of packed float64 elements in a, and stores the result.
The maximum relative error for this approximation is less than 2(-14).
_mm512_mask_rcp14_pd
extern __m512d __cdecl _mm512_mask_rcp14_pd(__m512d src, __mmask8 k, __m512d a);
Computes the approximate reciprocal of packed float64 elements in a, and stores the result using writemask k (elements are copied from src when the corresponding mask bit is not set).
The maximum relative error for this approximation is less than 2(-14).
_mm512_maskz_rcp14_pd
extern __m512d __cdecl _mm512_maskz_rcp14_pd(__mmask8 k, __m512d a);
Computes the approximate reciprocal of packed float64 elements in a, and stores the result using zeromask k (elements are zeroed out when the corresponding mask bit is not set).
The maximum relative error for this approximation is less than 2(-14).
_mm512_rcp14_ps
extern __m512 __cdecl _mm512_rcp14_ps(__m512 a);
Computes the approximate reciprocal of packed float32 elements in a, and stores the result.
The maximum relative error for this approximation is less than 2(-14).
_mm512_mask_rcp14_ps
extern __m512 __cdecl _mm512_mask_rcp14_ps(__m512 src, __mmask16 k, __m512 a);
Computes the approximate reciprocal of packed float32 elements in a, and stores the result using writemask k (elements are copied from src when the corresponding mask bit is not set).
The maximum relative error for this approximation is less than 2(-14).
_mm512_maskz_rcp14_ps
extern __m512 __cdecl _mm512_maskz_rcp14_ps(__mmask16 k, __m512 a);
Computes the approximate reciprocal of packed float32 elements in a, and stores the result using zeromask k (elements are zeroed out when the corresponding mask bit is not set).
The maximum relative error for this approximation is less than 2(-14).
_mm_rcp14_sd
extern __m128d __cdecl _mm_rcp14_sd(__m128d a, __m128d b);
Computes the approximate reciprocal of lower float64 element in b, stores the result in lower destination element, and copies upper element from a to upper destination element.
The maximum relative error for this approximation is less than 2(-14).
_mm_mask_rcp14_sd
extern __m128d __cdecl _mm_mask_rcp14_sd(__m128d src, __mmask8 k, __m128d a, __m128d b);
Computes the approximate reciprocal of lower float64 element in b, stores the result in lower destination element using writemask k (the element is copied from src when mask bit 0 is not set), and copies upper element from a to upper destination element.
The maximum relative error for this approximation is less than 2(-14).
_mm_maskz_rcp14_sd
extern __m128d __cdecl _mm_maskz_rcp14_sd(__mmask8 k, __m128d a, __m128d b);
Computes the approximate reciprocal of lower float64 element in b, stores the result in lower destination element using zeromask k (the element is zeroed out when mask bit 0 is not set), and copies upper element from a to upper destination element.
The maximum relative error for this approximation is less than 2(-14).
_mm_rcp14_ss
extern __m128 __cdecl _mm_rcp14_ss(__m128 a, __m128 b);
Computes approximate reciprocal of lower float32 element in b, stores the result in lower destination element, and copies upper three packed elements from a to upper destination elements.
The maximum relative error for this approximation is less than 2(-14).
_mm_mask_rcp14_ss
extern __m128 __cdecl _mm_mask_rcp14_ss(__m128 src, __mmask8 k, __m128 a, __m128 b);
Computes approximate reciprocal of lower float32 element in b, stores the result in lower destination element using writemask k (the element is copied from src when mask bit 0 is not set), and copies upper three packed elements from a to upper destination elements.
The maximum relative error for this approximation is less than 2(-14).
_mm_maskz_rcp14_ss
extern __m128 __cdecl _mm_maskz_rcp14_ss(__mmask8 k, __m128 a, __m128 b);
Computes approximate reciprocal of lower float32 element in b, stores the result in lower destination element using zeromask k (the element is zeroed out when mask bit 0 is not set), and copies upper three packed elements from a to upper destination elements.
The maximum relative error for this approximation is less than 2(-14).
_mm512_rcp28_round_pd
extern __m512d __cdecl _mm512_rcp28_round_pd(__m512d a);
Computes the approximate reciprocal of packed float64 elements in a, and stores the result.
The maximum relative error for this approximation is less than 2(-28).
_mm512_mask_rcp28_round_pd
extern __m512d __cdecl _mm512_mask_rcp28_round_pd(__m512d src, __mmask8 k, __m512d a);
Computes the approximate reciprocal of packed float64 elements in a, and stores the result using writemask k (elements are copied from src when the corresponding mask bit is not set).
The maximum relative error for this approximation is less than 2(-28).
_mm512_maskz_rcp28_round_pd
extern __m512d __cdecl _mm512_maskz_rcp28_round_pd(__mmask8 k, __m512d a);
Computes the approximate reciprocal of packed float64 elements in a, and stores the result using zeromask k (elements are zeroed out when the corresponding mask bit is not set).
The maximum relative error for this approximation is less than 2(-28).
_mm512_rcp28_pd
extern __m512d __cdecl _mm512_rcp28_pd(__m512d a);
Computes the approximate reciprocal of packed float64 elements in a, and stores the result.
The maximum relative error for this approximation is less than 2(-28).
_mm512_mask_rcp28_pd
extern __m512d __cdecl _mm512_mask_rcp28_pd(__m512d src, __mmask8 k, __m512d a);
Computes the approximate reciprocal of packed float64 elements in a, and stores the result using writemask k (elements are copied from src when the corresponding mask bit is not set).
The maximum relative error for this approximation is less than 2(-28).
_mm512_maskz_rcp28_pd
extern __m512d __cdecl _mm512_maskz_rcp28_pd(__mmask8 k, __m512d a);
Computes the approximate reciprocal of packed float64 elements in a, and stores the result using zeromask k (elements are zeroed out when the corresponding mask bit is not set).
The maximum relative error for this approximation is less than 2(-28).
_mm512_rcp28_round_ps
extern __m512 __cdecl _mm512_rcp28_round_ps(__m512 a);
Computes the approximate reciprocal of packed float32 elements in a, and stores the result.
The maximum relative error for this approximation is less than 2(-28).
_mm512_mask_rcp28_round_ps
extern __m512 __cdecl _mm512_mask_rcp28_round_ps(__m512 src, __mmask16 k, __m512 a);
Computes the approximate reciprocal of packed float32 elements in a, and stores the result using writemask k (elements are copied from src when the corresponding mask bit is not set).
The maximum relative error for this approximation is less than 2(-28).
_mm512_maskz_rcp28_round_ps
extern __m512 __cdecl _mm512_maskz_rcp28_round_ps(__mmask16 k, __m512 a);
Computes the approximate reciprocal of packed float32 elements in a, and stores the result using zeromask k (elements are zeroed out when the corresponding mask bit is not set).
The maximum relative error for this approximation is less than 2(-28).
_mm512_rcp28_ps
extern __m512 __cdecl _mm512_rcp28_ps(__m512 a);
Computes the approximate reciprocal of packed float32 elements in a, and stores the result.
The maximum relative error for this approximation is less than 2(-28).
_mm512_mask_rcp28_ps
extern __m512 __cdecl _mm512_mask_rcp28_ps(__m512 src, __mmask16 k, __m512 a);
Computes the approximate reciprocal of packed float32 elements in a, and stores the result using writemask k (elements are copied from src when the corresponding mask bit is not set).
The maximum relative error for this approximation is less than 2(-28).
_mm512_maskz_rcp28_ps
extern __m512 __cdecl _mm512_maskz_rcp28_ps(__mmask16 k, __m512 a);
Computes the approximate reciprocal of packed float32 elements in a, and stores the result using zeromask k (elements are zeroed out when the corresponding mask bit is not set).
The maximum relative error for this approximation is less than 2(-28).
_mm512_rcp28_round_sd
extern __m128d __cdecl _mm512_rcp28_round_sd(__m128d a, __m128d b);
Computes the approximate reciprocal of lower float64 element in b, stores the result in lower destination element, and copies upper element from a to upper destination element.
The maximum relative error for this approximation is less than 2(-28).
_mm512_mask_rcp28_round_sd
extern __m128d __cdecl _mm512_mask_rcp28_round_sd(__m128d src, __mmask8 k, __m128d a, __m128d b);
Computes the approximate reciprocal of lower float64 element in b, stores the result in lower destination element using writemask k (the element is copied from src when mask bit 0 is not set), and copies upper element from a to upper destination element.
The maximum relative error for this approximation is less than 2(-28).
_mm512_maskz_rcp28_round_sd
extern __m128d __cdecl _mm512_maskz_rcp28_round_sd(__mmask8 k, __m128d a, __m128d b);
Computes the approximate reciprocal of lower float64 element in b, stores the result in lower destination element using zeromask k (the element is zeroed out when mask bit 0 is not set), and copies upper element from a to upper destination element.
The maximum relative error for this approximation is less than 2(-28).
_mm512_rcp28_round_sd
extern __m128d __cdecl _mm512_rcp28_round_sd(__m128d a, __m128d b);
Computes the approximate reciprocal of lower float64 element in b, stores the result in lower destination element, and copies upper element from a to upper destination element.
The maximum relative error for this approximation is less than 2(-28).
_mm512_mask_rcp28_round_sd
extern __m128d __cdecl _mm512_mask_rcp28_round_sd(__m128d src, __mmask8 k, __m128d a, __m128d b);
Computes the approximate reciprocal of lower float64 element in b, stores the result in lower destination element using writemask k (the element is copied from src when mask bit 0 is not set), and copies upper element from a to upper destination element.
The maximum relative error for this approximation is less than 2(-28).
_mm512_maskz_rcp28_round_sd
extern __m128d __cdecl _mm512_maskz_rcp28_round_sd(__mmask8 k, __m128d a, __m128d b);
Computes the approximate reciprocal of lower float64 element in b, stores the result in lower destination element using zeromask k (the element is zeroed out when mask bit 0 is not set), and copies upper element from a to upper destination element.
The maximum relative error for this approximation is less than 2(-28).
_mm512_rcp28_round_ss
extern __m128 __cdecl _mm512_rcp28_round_ss(__m128 a, __m128 b);
Computes approximate reciprocal of lower float32 element in b, stores the result in lower destination element, and copies upper three packed elements from a to upper destination elements.
The maximum relative error for this approximation is less than 2(-28).
_mm512_mask_rcp28_round_ss
extern __m128 __cdecl _mm512_mask_rcp28_round_ss(__m128 src, __mmask8 k, __m128 a, __m128 b);
Computes approximate reciprocal of lower float32 element in b, stores the result in lower destination element using writemask k (the element is copied from src when mask bit 0 is not set), and copies upper three packed elements from a to upper destination elements.
The maximum relative error for this approximation is less than 2(-28).
_mm512_maskz_rcp28_round_ss
extern __m128 __cdecl _mm512_maskz_rcp28_round_ss(__mmask8 k, __m128 a, __m128 b);
Computes approximate reciprocal of lower float32 element in b, stores the result in lower destination element using zeromask k (the element is zeroed out when mask bit 0 is not set), and copies upper three packed elements from a to upper destination elements.
The maximum relative error for this approximation is less than 2(-28).
_mm512_rcp28_ss
extern __m128 __cdecl _mm512_rcp28_ss(__m128 a, __m128 b);
Computes approximate reciprocal of lower float32 element in b, stores the result in lower destination element, and copies upper three packed elements from a to upper destination elements.
The maximum relative error for this approximation is less than 2(-28).
_mm512_mask_rcp28_ss
extern __m128 __cdecl _mm512_mask_rcp28_ss(__m128 src, __mmask8 k, __m128 a, __m128 b);
Computes approximate reciprocal of lower float32 element in b, stores the result in lower destination element using writemask k (the element is copied from src when mask bit 0 is not set), and copies upper three packed elements from a to upper destination elements.
The maximum relative error for this approximation is less than 2(-28).
_mm512_maskz_rcp28_ss
extern __m128 __cdecl _mm512_maskz_rcp28_ss(__mmask8 k, __m128 a, __m128 b);
Computes approximate reciprocal of lower float32 element in b, stores the result in lower destination element using zeromask k (the element is zeroed out when mask bit 0 is not set), and copies upper three packed elements from a to upper destination elements.
The maximum relative error for this approximation is less than 2(-28).
_mm512_recip_pd
extern __m512d __cdecl _mm512_recip_pd(__m512d a);
Computes approximate reciprocal of float64 elements in a, and stores the result.
_mm512_mask_recip_pd
extern __m512d __cdecl _mm512_mask_recip_pd(__m512d src, __mmask8 k, __m512d a);
Computes approximate reciprocal of float64 elements in a, and stores the result using writemask k (the element is copied from src when mask bit 0 is not set).
_mm512_recip_ps
extern __m512 __cdecl _mm512_recip_ps(__m512 a);
Computes approximate reciprocal of float32 elements in a, and stores the result.
_mm512_mask_recip_ps
extern __m512 __cdecl _mm512_mask_recip_ps(__m512 src, __mmask16 k, __m512 a);
Computes approximate reciprocal of float32 elements in a, and stores the result using writemask k (the element is copied from src when mask bit 0 is not set).