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math.vectors.simd.intrinsics: better fake vgetmask 

More accurate simulacrum of PMOVMSKB/MOVMSKPS/MOVMSKPD for non-intrinsic definition
db4
Joe Groff 2011-11-12 15:37:25 -08:00
parent da81cb9035
commit 5411a67b22
1 changed files with 6 additions and 1 deletions
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7
basis/math/vectors/simd/intrinsics/intrinsics.factor
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@ -158,6 +158,9 @@ GENERIC: native/ ( x y -- x/y )
M: integer native/ /i ; inline
M: float native/ /f ; inline
: ((vgetmask)) ( a rep -- b )
0 [ [ 1 shift ] [ zero? 0 1 ? ] bi* bitor ] bitwise-components-reduce* ; inline
PRIVATE>
SIMD-INTRINSIC: (simd-v+) ( a b rep -- c ) [ + ] components-2map ;
@ -262,7 +265,9 @@ SIMD-INTRINSIC: (simd-vunordered?) ( a b rep -- c )
SIMD-INTRINSIC: (simd-vany?) ( a rep -- ? ) [ bitor ] bitwise-components-reduce zero? not ;
SIMD-INTRINSIC: (simd-vall?) ( a rep -- ? ) [ bitand ] bitwise-components-reduce zero? not ;
SIMD-INTRINSIC: (simd-vnone?) ( a rep -- ? ) [ bitor ] bitwise-components-reduce zero? ;
SIMD-INTRINSIC: (simd-vgetmask) ( a rep -- n ) 0 [ [ 1 shift ] [ zero? 0 1 ? ] bi* bitor ] bitwise-components-reduce* ;
SIMD-INTRINSIC: (simd-vgetmask) ( a rep -- n )
dup { float-4-rep double-2-rep } member?
[ ((vgetmask)) ] [ drop uchar-16-rep ((vgetmask)) ] if ;
SIMD-INTRINSIC: (simd-v>float) ( a rep -- c )
[ [ >rep-array ] [ rep-length ] bi [ >float ] ]
[ >float-vector-rep <rep-array> ] bi unrolled-map-as-unsafe underlying>> ;