vbit-count ( v -- w )

Vocabulary

math.vectors

Inputs

v	a sequence

Outputs

w	a sequence

Word description

Counts set bits in each fixed-width integer SIMD lane.

Definition

IN: math.vectors

GENERIC: vbit-count ( v -- w )

Methods

USING: generic kernel math.vectors math.vectors.simd
math.vectors.simd.intrinsics math.vectors.simd.private ;

M: simd-128 vbit-count
    "bit-count" over simd-rep
    [ (simd-unary) ]
    [ M\ simd-128 vbit-count (call-next-method) ] vx->v-op ;
    inline