static int unpack32_specialized()

in cpp/src/arrow/util/bpacking_simd_internal.h [25:135]

• 109 lines of code
• 67 McCabe index (conditional complexity)

static int unpack32_specialized(const uint32_t* in, uint32_t* out, int batch_size,
                                int num_bits) {
  batch_size = batch_size / 32 * 32;
  int num_loops = batch_size / 32;

  switch (num_bits) {
    case 0:
      for (int i = 0; i < num_loops; ++i) in = UnpackBits::unpack0_32(in, out + i * 32);
      break;
    case 1:
      for (int i = 0; i < num_loops; ++i) in = UnpackBits::unpack1_32(in, out + i * 32);
      break;
    case 2:
      for (int i = 0; i < num_loops; ++i) in = UnpackBits::unpack2_32(in, out + i * 32);
      break;
    case 3:
      for (int i = 0; i < num_loops; ++i) in = UnpackBits::unpack3_32(in, out + i * 32);
      break;
    case 4:
      for (int i = 0; i < num_loops; ++i) in = UnpackBits::unpack4_32(in, out + i * 32);
      break;
    case 5:
      for (int i = 0; i < num_loops; ++i) in = UnpackBits::unpack5_32(in, out + i * 32);
      break;
    case 6:
      for (int i = 0; i < num_loops; ++i) in = UnpackBits::unpack6_32(in, out + i * 32);
      break;
    case 7:
      for (int i = 0; i < num_loops; ++i) in = UnpackBits::unpack7_32(in, out + i * 32);
      break;
    case 8:
      for (int i = 0; i < num_loops; ++i) in = UnpackBits::unpack8_32(in, out + i * 32);
      break;
    case 9:
      for (int i = 0; i < num_loops; ++i) in = UnpackBits::unpack9_32(in, out + i * 32);
      break;
    case 10:
      for (int i = 0; i < num_loops; ++i) in = UnpackBits::unpack10_32(in, out + i * 32);
      break;
    case 11:
      for (int i = 0; i < num_loops; ++i) in = UnpackBits::unpack11_32(in, out + i * 32);
      break;
    case 12:
      for (int i = 0; i < num_loops; ++i) in = UnpackBits::unpack12_32(in, out + i * 32);
      break;
    case 13:
      for (int i = 0; i < num_loops; ++i) in = UnpackBits::unpack13_32(in, out + i * 32);
      break;
    case 14:
      for (int i = 0; i < num_loops; ++i) in = UnpackBits::unpack14_32(in, out + i * 32);
      break;
    case 15:
      for (int i = 0; i < num_loops; ++i) in = UnpackBits::unpack15_32(in, out + i * 32);
      break;
    case 16:
      for (int i = 0; i < num_loops; ++i) in = UnpackBits::unpack16_32(in, out + i * 32);
      break;
    case 17:
      for (int i = 0; i < num_loops; ++i) in = UnpackBits::unpack17_32(in, out + i * 32);
      break;
    case 18:
      for (int i = 0; i < num_loops; ++i) in = UnpackBits::unpack18_32(in, out + i * 32);
      break;
    case 19:
      for (int i = 0; i < num_loops; ++i) in = UnpackBits::unpack19_32(in, out + i * 32);
      break;
    case 20:
      for (int i = 0; i < num_loops; ++i) in = UnpackBits::unpack20_32(in, out + i * 32);
      break;
    case 21:
      for (int i = 0; i < num_loops; ++i) in = UnpackBits::unpack21_32(in, out + i * 32);
      break;
    case 22:
      for (int i = 0; i < num_loops; ++i) in = UnpackBits::unpack22_32(in, out + i * 32);
      break;
    case 23:
      for (int i = 0; i < num_loops; ++i) in = UnpackBits::unpack23_32(in, out + i * 32);
      break;
    case 24:
      for (int i = 0; i < num_loops; ++i) in = UnpackBits::unpack24_32(in, out + i * 32);
      break;
    case 25:
      for (int i = 0; i < num_loops; ++i) in = UnpackBits::unpack25_32(in, out + i * 32);
      break;
    case 26:
      for (int i = 0; i < num_loops; ++i) in = UnpackBits::unpack26_32(in, out + i * 32);
      break;
    case 27:
      for (int i = 0; i < num_loops; ++i) in = UnpackBits::unpack27_32(in, out + i * 32);
      break;
    case 28:
      for (int i = 0; i < num_loops; ++i) in = UnpackBits::unpack28_32(in, out + i * 32);
      break;
    case 29:
      for (int i = 0; i < num_loops; ++i) in = UnpackBits::unpack29_32(in, out + i * 32);
      break;
    case 30:
      for (int i = 0; i < num_loops; ++i) in = UnpackBits::unpack30_32(in, out + i * 32);
      break;
    case 31:
      for (int i = 0; i < num_loops; ++i) in = UnpackBits::unpack31_32(in, out + i * 32);
      break;
    case 32:
      for (int i = 0; i < num_loops; ++i) in = UnpackBits::unpack32_32(in, out + i * 32);
      break;
    default:
      ARROW_DCHECK(false) << "Unsupported num_bits";
  }

  return batch_size;
}