Development Reference Guides

Contents

Move Mask Operators

  • Creates a 2-bit mask from the most significant bits of the two, double-precision floating-point values of
    A
    , as follows:
    int i = move_mask(F64vec2 A) i := sign(a1)<<1 | sign(a0)<<0
    Corresponding intrinsic:
    _mm_movemask_pd
  • Creates a 4-bit mask from the most significant bits of the four, single-precision floating-point values of
    A
    , as follows:
    int i = move_mask(F32vec4 A) i := sign(a3)<<3 | sign(a2)<<2 | sign(a1)<<1 | sign(a0)<<0
    Corresponding intrinsic:
    _mm_movemask_ps

Product and Performance Information

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Performance varies by use, configuration and other factors. Learn more at www.Intel.com/PerformanceIndex.