Intel® oneAPI DPC++/C++ Compiler Developer Guide and Reference

Development Reference Guides

Contents

Pack Operators

  • Pack the eight 32-bit values found in
    A
     and
    B
     into eight 16-bit values with signed saturation: 
    
Is16vec8 pack_sat(Is32vec2 A,Is32vec2 B);
    Corresponding intrinsic:
    _mm_packs_epi32
  • Pack the four 32-bit values found in
    A
     and
    B
     into eight 16-bit values with signed saturation: 
    
Is16vec4 pack_sat(Is32vec2 A,Is32vec2 B);
    Corresponding intrinsic:
    _mm_packs_pi32
  • Pack the sixteen 16-bit values found in
    A
     and
    B
     into sixteen 8-bit values with signed saturation: 
    
Is8vec16 pack_sat(Is16vec4 A,Is16vec4 B);
    Corresponding intrinsic:
    _mm_packs_epi16
  • Pack the eight 16-bit values found in
    A
     and
    B
     into eight 8-bit values with signed saturation: 
    
Is8vec8 pack_sat(Is16vec4 A,Is16vec4 B);
    Corresponding intrinsic:
    _mm_packs_pi16
  • Pack the sixteen 16-bit values found in
    A
     and
    B
     into sixteen 8-bit values with unsigned saturation: 
    
Iu8vec16 packu_sat(Is16vec4 A,Is16vec4 B);
    Corresponding intrinsic:
    _mm_packus_epi16
  • Pack the eight 16-bit values found in
    A
     and
    B
     into eight 8-bit values with unsigned saturation: 
    
Iu8vec8 packu_sat(Is16vec4 A,Is16vec4 B);
    Corresponding intrinsic:
    _mm_packs_pu16

Product and Performance Information

1

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