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{
  "cases": [
    {
      "name": "f32_nan_inf_finite",
      "inputs": {
        "x": {
          "dtype": "float32",
          "shape": [2, 4],
          "data": { "kind": "values", "values": [1.0, "NaN", "Infinity", "-Infinity", 0.0, "NaN", -5.5, 3.25] }
        }
      },
      "outputs": { "y": { "dtype": "bool", "shape": [2, 4] } }
    },
    {
      "name": "f16_nan_values",
      "inputs": {
        "x": {
          "dtype": "float16",
          "shape": [2, 3],
          "data": { "kind": "values", "values": ["NaN", 0.0, 1.0, -2.0, "NaN", "Infinity"] }
        }
      },
      "outputs": { "y": { "dtype": "bool", "shape": [2, 3] } }
    },
    {
      "name": "scalar_false",
      "inputs": { "x": { "dtype": "float32", "shape": [], "data": { "kind": "values", "values": [42.0] } } },
      "outputs": { "y": { "dtype": "bool", "shape": [] } }
    },
    {
      "name": "scalar_true",
      "inputs": { "x": { "dtype": "float32", "shape": [], "data": { "kind": "values", "values": ["NaN"] } } },
      "outputs": { "y": { "dtype": "bool", "shape": [], "tolerance": 0 } }
    },
    {
      "name": "zero_size_noop",
      "inputs": { "x": { "dtype": "float16", "shape": [0, 3], "data": { "kind": "values", "values": [] } } },
      "outputs": { "y": { "dtype": "bool", "shape": [0, 3], "tolerance": 0 } }
    },
    {
      "name": "ort_float_opset20_2x2",
      "provenance": {
        "source": "onnxruntime/test/providers/cpu/tensor/isnan_test.cc",
        "test": "IsNaNOpTest.IsNaNFloat20"
      },
      "inputs": {
        "x": { "dtype": "float32", "shape": [2, 2], "data": { "kind": "values", "values": [1.0, "NaN", 2.0, "NaN"] } }
      },
      "outputs": { "y": { "dtype": "bool", "shape": [2, 2], "tolerance": 0 } }
    },
    {
      "name": "onnx_backend_float_specials",
      "provenance": { "source": "cmake/external/onnx/onnx/backend/test/data/node/test_isnan", "test": "test_isnan" },
      "inputs": {
        "x": {
          "dtype": "float32",
          "shape": [6],
          "data": { "kind": "values", "values": [-1.2, "NaN", "Infinity", 2.8, "-Infinity", "Infinity"] }
        }
      },
      "outputs": { "y": { "dtype": "bool", "shape": [6], "tolerance": 0 } }
    },
    {
      "name": "ort_float16_opset20_2x2",
      "provenance": {
        "source": "onnxruntime/test/providers/cpu/tensor/isnan_test.cc",
        "test": "IsNaNOpTest.IsNaNFloat16_20"
      },
      "inputs": {
        "x": { "dtype": "float16", "shape": [2, 2], "data": { "kind": "values", "values": [1.0, "NaN", 2.0, "NaN"] } }
      },
      "outputs": { "y": { "dtype": "bool", "shape": [2, 2], "tolerance": 0 } }
    },
    {
      "name": "onnx_backend_float16_specials",
      "provenance": {
        "source": "cmake/external/onnx/onnx/backend/test/data/node/test_isnan_float16",
        "test": "test_isnan_float16"
      },
      "inputs": {
        "x": {
          "dtype": "float16",
          "shape": [6],
          "data": { "kind": "values", "values": [-1.2, "NaN", "Infinity", 2.8, "-Infinity", "Infinity"] }
        }
      },
      "outputs": { "y": { "dtype": "bool", "shape": [6], "tolerance": 0 } }
    },
    {
      "name": "onnx_backend_isnan",
      "provenance": { "source": "cmake/external/onnx/onnx/backend/test/data/node/test_isnan" },
      "inputs": {
        "x": {
          "dtype": "float32",
          "shape": [6],
          "data": {
            "kind": "values",
            "values": [-1.2000000476837158, "NaN", "Infinity", 2.799999952316284, "-Infinity", "Infinity"]
          }
        }
      },
      "outputs": { "y": { "dtype": "bool", "shape": [6], "tolerance": 0 } }
    },
    {
      "name": "onnx_backend_isnan_float16",
      "provenance": { "source": "cmake/external/onnx/onnx/backend/test/data/node/test_isnan_float16" },
      "inputs": {
        "x": {
          "dtype": "float16",
          "shape": [6],
          "data": {
            "kind": "values",
            "values": [-1.2001953125, "NaN", "Infinity", 2.80078125, "-Infinity", "Infinity"]
          }
        }
      },
      "outputs": { "y": { "dtype": "bool", "shape": [6], "tolerance": 0 } }
    },
    {
      "name": "ort_bool_exact_empty_float16_zero_dim",
      "provenance": {
        "source": "onnxruntime/test/providers/cpu/tensor/isnan_test.cc",
        "test": "IsNaNOpTest.IsNaNFloat16_20",
        "notes": "Zero-dimension projection of ORT's float16 IsNaN coverage."
      },
      "inputs": { "x": { "dtype": "float16", "shape": [0, 2], "data": { "kind": "values", "values": [] } } },
      "outputs": { "y": { "dtype": "bool", "shape": [0, 2], "tolerance": 0 } }
    },
    {
      "name": "f32_vec4_mixed_nan_16",
      "provenance": {
        "notes": "A compact aligned float32 input exercises mixed NaN, Infinity, and finite lanes on the same-layout vectorized path."
      },
      "inputs": {
        "x": {
          "dtype": "float32",
          "shape": [16],
          "data": {
            "kind": "values",
            "values": ["NaN", 0.0, "Infinity", "-Infinity", 1.5, "NaN", -2.0, 3.0, 4.0, 5.0, "NaN", 6.0, "-Infinity", 7.0, 8.0, "NaN"]
          }
        }
      },
      "outputs": {
        "y": {
          "dtype": "bool",
          "shape": [16],
          "tolerance": 0,
          "data": { "kind": "values", "values": [1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1] }
        }
      }
    },
    {
      "name": "f16_all_nan_vec4",
      "inputs": {
        "x": { "dtype": "float16", "shape": [4], "data": { "kind": "values", "values": ["NaN", "NaN", "NaN", "NaN"] } }
      },
      "outputs": {
        "y": { "dtype": "bool", "shape": [4], "tolerance": 0, "data": { "kind": "values", "values": [1, 1, 1, 1] } }
      }
    },
    {
      "name": "f16_mixed_nan_non_nan_vec4",
      "inputs": {
        "x": { "dtype": "float16", "shape": [4], "data": { "kind": "values", "values": ["NaN", 1.0, -1.0, "NaN"] } }
      },
      "outputs": {
        "y": { "dtype": "bool", "shape": [4], "tolerance": 0, "data": { "kind": "values", "values": [1, 0, 0, 1] } }
      }
    },
    {
      "name": "rank7_vec4",
      "inputs": {
        "x": {
          "dtype": "float32",
          "shape": [1, 1, 1, 1, 1, 1, 8],
          "data": { "kind": "values", "values": ["NaN", 1.0, "Infinity", "-Infinity", 0.0, "NaN", 2.0, "NaN"] }
        }
      },
      "outputs": { "y": { "dtype": "bool", "shape": [1, 1, 1, 1, 1, 1, 8], "tolerance": 0 } },
      "provenance": {
        "notes": "A rank-7 flat input exercises the shared vec4 unary path, whose indexing depends only on total element count."
      }
    },
    {
      "name": "rank7_scalar",
      "inputs": {
        "x": {
          "dtype": "float32",
          "shape": [1, 1, 1, 1, 1, 1, 3],
          "data": { "kind": "values", "values": ["NaN", 1.0, "NaN"] }
        }
      },
      "outputs": { "y": { "dtype": "bool", "shape": [1, 1, 1, 1, 1, 1, 3], "tolerance": 0 } },
      "provenance": {
        "notes": "A rank-seven input with three values checks IsNaN on a high-rank shape whose element count is not a multiple of four."
      }
    }
  ]
}