{
  "domain": "ai.onnx",
  "name": "BitwiseNot",
  "sinceVersion": 18,
  "description": "Applies a bitwise NOT to each element of the input tensor, flipping every bit. The output has the same shape and integer dtype as the input.",
  "inputs": [{ "role": "X", "dtype": "T", "description": "Input integer tensor." }],
  "outputs": [
    {
      "role": "Y",
      "dtype": "T",
      "rank": "ranks.X",
      "description": "Output tensor with each element bitwise-negated; same shape and dtype as `X`.",
      "shape": "shapes.X"
    }
  ],
  "typeConstraints": { "T": ["uint32", "int32", "int16", "uint8", "int8"] },
  "args": {
    "x": { "kind": "tensor", "semantic": "X", "role": "input" },
    "y": { "kind": "tensor", "semantic": "Y", "role": "output" }
  },
  "tunables": { "WORKGROUP_SIZE": 256 },
  "derive": { "shapeContract": "numel(shapes.X) == numel(shapes.Y)" },
  "constants": { "logicalDtype": "tensorDtypes.Y" },
  "bindingSets": {
    "vector": [
      { "name": "x", "arg": "x", "buffer": { "type": "read-only-storage" }, "elementType": "$vectorScalar" },
      { "name": "y", "arg": "y", "buffer": { "type": "storage" }, "elementType": "$vectorScalar" },
      {
        "name": "params",
        "semantic": "kernel.params",
        "buffer": { "type": "uniform" },
        "struct": { "name": "Params", "fields": [{ "name": "count", "type": "u32", "value": "numel(shapes.y) / 4" }] }
      }
    ],
    "scalar": [
      { "name": "x", "arg": "x", "semantic": "X", "buffer": { "type": "read-only-storage" }, "elementType": "$T" },
      { "name": "y", "arg": "y", "semantic": "Y", "buffer": { "type": "storage" }, "elementType": "$T" },
      {
        "name": "params",
        "semantic": "kernel.params",
        "buffer": { "type": "uniform" },
        "struct": { "name": "Params", "fields": [{ "name": "count", "type": "u32", "value": "numel(shapes.Y)" }] }
      }
    ]
  },
  "variants": [
    {
      "id": "elementwise_vec4",
      "priority": 20,
      "when": ["numel(shapes.X) % 4 == 0", "shapeContract"],
      "constants": { "vectorScalar": "\"vec4<\" ~ dtypes.T ~ \">\"" },
      "passes": [
        {
          "id": "main",
          "name": "BitwiseNot.vec4",
          "source": { "shader": "bitwise-not.wgsl.jinja", "inputs": { "vectorized": true } },
          "bindings": "vector",
          "dispatch": { "threads": "numel(shapes.Y) / 4", "workgroupSize": "tunables.WORKGROUP_SIZE" }
        }
      ]
    },
    {
      "id": "elementwise",
      "when": "shapeContract",
      "passes": [
        {
          "id": "main",
          "name": "BitwiseNot",
          "source": { "shader": "bitwise-not.wgsl.jinja", "inputs": { "vectorized": false } },
          "bindings": "scalar",
          "dispatch": { "threads": "numel(shapes.Y)", "workgroupSize": "tunables.WORKGROUP_SIZE" }
        }
      ]
    }
  ]
}