definitions/simd-loop/loop_112.json

{
  "name": "loop_112",
  "op_type": "loop_112",
  "description": "Complex multiply-accumulate over arrays of uint32 complex numbers",
  "tags": [
    "simd-loop"
  ],
  "axes": {
    "size": {
      "type": "var",
      "description": "axis size"
    },
    "cdim": {
      "type": "const",
      "value": 2,
      "description": "const cdim"
    }
  },
  "inputs": {
    "a0": {
      "shape": [
        "size",
        "cdim"
      ],
      "dtype": "uint32"
    },
    "b0": {
      "shape": [
        "size",
        "cdim"
      ],
      "dtype": "uint32"
    }
  },
  "outputs": {
    "c0": {
      "shape": [
        "size",
        "cdim"
      ],
      "dtype": "uint32",
      "description": "Output array"
    }
  },
  "reference": "import numpy as np\n\n_M = np.uint64(0xffffffff)\n\ndef run(a0, b0):\n    ar = a0[:, 0].astype(np.uint64); ai = a0[:, 1].astype(np.uint64)\n    br = b0[:, 0].astype(np.uint64); bi = b0[:, 1].astype(np.uint64)\n    cr = (ar * br - ai * bi) & _M\n    ci = (ar * bi + ai * br) & _M\n    return np.stack([cr, ci], axis=1).astype(np.uint32)\n",
  "simd_loop_meta": {
    "output_inplace": false,
    "array_pad": 0,
    "scratch": [],
    "axes_order": [
      "size"
    ]
  }
}