onnx-mlir/docs/Dialects/onnx.md

onnx.Abs (ONNXAbsOp)

ONNX Abs operation

"Absolute takes one input data (Tensor) and produces one output data" "(Tensor) where the absolute is, y = abs(x), is applied to" "the tensor elementwise."

Operands:

Operand	Description
X	memref of any type values or tensor of any type values

Results:

Result	Description
Y	memref of any type values or tensor of any type values

onnx.Acos (ONNXAcosOp)

ONNX Acos operation

"Calculates the arccosine (inverse of cosine) of the given input tensor, element-wise."

Operands:

Operand	Description
input	memref of any type values or tensor of any type values

Results:

Result	Description
output	memref of any type values or tensor of any type values

onnx.Acosh (ONNXAcoshOp)

ONNX Acosh operation

"Calculates the hyperbolic arccosine of the given input tensor element-wise."

Operands:

Operand	Description
input	memref of any type values or tensor of any type values

Results:

Result	Description
output	memref of any type values or tensor of any type values

onnx.Add (ONNXAddOp)

ONNX Add operation

"Performs element-wise binary addition (with Numpy-style broadcasting support)." "" "This operator supports multidirectional (i.e., Numpy-style) broadcasting; for more details please check the doc."

Operands:

Operand	Description
A	memref of any type values or tensor of any type values
B	memref of any type values or tensor of any type values

Results:

Result	Description
C	memref of any type values or tensor of any type values

onnx.And (ONNXAndOp)

ONNX And operation

"Returns the tensor resulted from performing the and logical operation" "elementwise on the input tensors A and B (with Numpy-style broadcasting support)." "" "This operator supports multidirectional (i.e., Numpy-style) broadcasting; for more details please check the doc."

Operands:

Operand	Description
A	memref of any type values or tensor of any type values
B	memref of any type values or tensor of any type values

Results:

Result	Description
C	memref of any type values or tensor of any type values

onnx.ArgMax (ONNXArgMaxOp)

ONNX ArgMax operation

"Computes the indices of the max elements of the input tensor's element along the " "provided axis. The resulted tensor has the same rank as the input if keepdims equal 1." "If keepdims equal 0, then the resulted tensor have the reduced dimension pruned. " "The type of the output tensor is integer."

Attributes:

Attribute	MLIR Type	Description
axis	IntegerAttr	64-bit signless integer attribute
keepdims	IntegerAttr	64-bit signless integer attribute

Operands:

Operand	Description
data	memref of any type values or tensor of any type values

Results:

Result	Description
reduced	memref of any type values or tensor of any type values

onnx.ArgMin (ONNXArgMinOp)

ONNX ArgMin operation

"Computes the indices of the min elements of the input tensor's element along the " "provided axis. The resulted tensor has the same rank as the input if keepdims equal 1." "If keepdims equal 0, then the resulted tensor have the reduced dimension pruned. " "The type of the output tensor is integer."

Attributes:

Attribute	MLIR Type	Description
axis	IntegerAttr	64-bit signless integer attribute
keepdims	IntegerAttr	64-bit signless integer attribute

Operands:

Operand	Description
data	memref of any type values or tensor of any type values

Results:

Result	Description
reduced	memref of any type values or tensor of any type values

onnx.Asin (ONNXAsinOp)

ONNX Asin operation

"Calculates the arcsine (inverse of sine) of the given input tensor, element-wise."

Operands:

Operand	Description
input	memref of any type values or tensor of any type values

Results:

Result	Description
output	memref of any type values or tensor of any type values

onnx.Asinh (ONNXAsinhOp)

ONNX Asinh operation

"Calculates the hyperbolic arcsine of the given input tensor element-wise."

Operands:

Operand	Description
input	memref of any type values or tensor of any type values

Results:

Result	Description
output	memref of any type values or tensor of any type values

onnx.Atan (ONNXAtanOp)

ONNX Atan operation

"Calculates the arctangent (inverse of tangent) of the given input tensor, element-wise."

Operands:

Operand	Description
input	memref of any type values or tensor of any type values

Results:

Result	Description
output	memref of any type values or tensor of any type values

onnx.Atanh (ONNXAtanhOp)

ONNX Atanh operation

"Calculates the hyperbolic arctangent of the given input tensor element-wise."

Operands:

Operand	Description
input	memref of any type values or tensor of any type values

Results:

Result	Description
output	memref of any type values or tensor of any type values

onnx.AveragePool (ONNXAveragePoolOp)

ONNX AveragePool operation

"AveragePool consumes an input tensor X and applies average pooling across" " the tensor according to kernel sizes, stride sizes, and pad lengths." " average pooling consisting of computing the average on all values of a" " subset of the input tensor according to the kernel size and downsampling the" " data into the output tensor Y for further processing. The output spatial shape will be following:" " " " output_spatial_shape[i] = floor((input_spatial_shape[i] + pad_shape[i] - kernel_spatial_shape[i]) / strides_spatial_shape[i] + 1)" " " " or" " " " output_spatial_shape[i] = ceil((input_spatial_shape[i] + pad_shape[i] - kernel_spatial_shape[i]) / strides_spatial_shape[i] + 1)" " " " if ceil_mode is enabled" "" " " " * pad_shape[i] is sum of pads along axis i" " " "" " auto_pad is a DEPRECATED attribute. If you are using them currently, the output spatial shape will be following:" " " " VALID: output_spatial_shape[i] = ceil((input_spatial_shape[i] - kernel_spatial_shape[i] + 1) / strides_spatial_shape[i])" " SAME_UPPER or SAME_LOWER: output_spatial_shape[i] = ceil(input_spatial_shape[i] / strides_spatial_shape[i])" " " " And pad shape will be following if SAME_UPPER or SAME_LOWER:" " " " pad_shape[i] = (output_spatial_shape[i] - 1) * strides_spatial_shape[i] + kernel_spatial_shape[i] - input_spatial_shape[i]" " " " The output of each pooling window is divided by the number of elements (exclude pad when attribute count_include_pad is zero)." " "

Attributes:

Attribute	MLIR Type	Description
auto_pad	StringAttr	string attribute
ceil_mode	IntegerAttr	64-bit signless integer attribute
count_include_pad	IntegerAttr	64-bit signless integer attribute
kernel_shape	ArrayAttr	64-bit integer array attribute
pads	ArrayAttr	64-bit integer array attribute
strides	ArrayAttr	64-bit integer array attribute

Operands:

Operand	Description
X	memref of any type values or tensor of any type values

Results:

Result	Description
Y	memref of any type values or tensor of any type values

onnx.BatchNormalization (ONNXBatchNormalizationOp)

ONNX BatchNormalization operation

"Carries out batch normalization as described in the paper" "https://arxiv.org/abs/1502.03167. Depending on the mode it is being run," "there are multiple cases for the number of outputs, which we list below:" "" "Output case #1: Y, mean, var, saved_mean, saved_var (training mode)" "Output case #2: Y (test mode)" "" "For previous (depreciated) non-spatial cases, implementors are suggested" "to flatten the input shape to (N x CD1D2 ..*Dn) before a BatchNormalization Op." "This operator has optional inputs/outputs. See the doc for more details about the representation of optional arguments. An empty string may be used in the place of an actual argument's name to indicate a missing argument. Trailing optional arguments (those not followed by an argument that is present) may also be simply omitted."

Attributes:

Attribute	MLIR Type	Description
epsilon	FloatAttr	32-bit float attribute
momentum	FloatAttr	32-bit float attribute

Operands:

Operand	Description
X	memref of any type values or tensor of any type values
scale	memref of any type values or tensor of any type values
B	memref of any type values or tensor of any type values
mean	memref of any type values or tensor of any type values
var	memref of any type values or tensor of any type values

Results:

Result	Description
Y	memref of any type values or tensor of any type values
out_mean	memref of any type values or tensor of any type values or none type
out_var	memref of any type values or tensor of any type values or none type
saved_mean	memref of any type values or tensor of any type values or none type
saved_var	memref of any type values or tensor of any type values or none type

onnx.BatchNormalizationTestMode (ONNXBatchNormalizationTestModeOp)

ONNX BatchNormalization operation in test mode

"Carries out batch normalization as described in the paper" "https://arxiv.org/abs/1502.03167. Depending on the mode it is being run," "there are multiple cases for the number of outputs, which we list below:" "" "Output case #1: Y, mean, var, saved_mean, saved_var (training mode)" "Output case #2: Y (test mode)" "" "For previous (depreciated) non-spatial cases, implementors are suggested" "to flatten the input shape to (N x CD1D2 ..*Dn) before a BatchNormalization Op." "This operator has optional inputs/outputs. See the doc for more details about the representation of optional arguments. An empty string may be used in the place of an actual argument's name to indicate a missing argument. Trailing optional arguments (those not followed by an argument that is present) may also be simply omitted."

Attributes:

Attribute	MLIR Type	Description
epsilon	FloatAttr	32-bit float attribute
momentum	FloatAttr	32-bit float attribute

Operands:

Operand	Description
X	memref of any type values or tensor of any type values
scale	memref of any type values or tensor of any type values
B	memref of any type values or tensor of any type values
mean	memref of any type values or tensor of any type values
var	memref of any type values or tensor of any type values

Results:

Result	Description
o_Y	memref of any type values or tensor of any type values

onnx.BitShift (ONNXBitShiftOp)

ONNX BitShift operation

"Bitwise shift operator performs element-wise operation. For each input element, if the" " attribute "direction" is "RIGHT", this operator moves its binary representation toward" " the right side so that the input value is effectively decreased. If the attribute "direction"" " is "LEFT", bits of binary representation moves toward the left side, which results the" " increase of its actual value. The input X is the tensor to be shifted and another input" " Y specifies the amounts of shifting. For example, if "direction" is "Right", X is [1, 4]," " and S is [1, 1], the corresponding output Z would be [0, 2]. If "direction" is "LEFT" with" " X=[1, 2] and S=[1, 2], the corresponding output Y would be [2, 8]." " " " Because this operator supports Numpy-style broadcasting, X's and Y's shapes are" " not necessarily identical." "This operator supports multidirectional (i.e., Numpy-style) broadcasting; for more details please check the doc."

Attributes:

Attribute	MLIR Type	Description
direction	StringAttr	string attribute

Operands:

Operand	Description
X	memref of any type values or tensor of any type values
Y	memref of any type values or tensor of any type values

Results:

Result	Description
Z	memref of any type values or tensor of any type values

onnx.Cast (ONNXCastOp)

ONNX Cast operation

"The operator casts the elements of a given input tensor to a data type" "specified by the 'to' argument and returns an output tensor of the same size in" "the converted type. The 'to' argument must be one of the data types specified" "in the 'DataType' enum field in the TensorProto message." "" "Casting from string tensor in plain (e.g., "3.14" and "1000") and scientific numeric representations" "(e.g., "1e-5" and "1E8") to float types is supported. For example, converting string "100.5" to an integer may" "result 100. There are some string literals reserved for special floating-point values;" ""+INF" (and "INF"), "-INF", and "NaN" are positive infinity, negative infinity, and not-a-number, respectively." "Any string which can exactly match "+INF" in a case-insensitive way would be mapped to positive infinite. Similarly," "this case-insensitive rule is applied to "INF" and "NaN". When casting from numeric tensors" "to string tensors, plain floating-point representation (such as "314.15926") would be used. " "Converting non-numerical-literal string such as "Hello World!" is an undefined behavior. Cases " "of converting string representing floating-point arithmetic value, such as "2.718", to INT is an undefined behavior." "" "Conversion from a numerical type to any numerical type is always allowed." "User must be aware of precision loss and value change caused by range difference between two types." "For example, a 64-bit float 3.1415926459 may be round to a 32-bit float 3.141592. Similarly, converting" "an integer 36 to Boolean may produce 1 because we truncate bits which can't be stored in the targeted type."

Attributes:

Attribute	MLIR Type	Description
to	IntegerAttr	64-bit signless integer attribute

Operands:

Operand	Description
input	memref of any type values or tensor of any type values

Results:

Result	Description
output	memref of any type values or tensor of any type values

onnx.Ceil (ONNXCeilOp)

ONNX Ceil operation

"Ceil takes one input data (Tensor) and produces one output data" "(Tensor) where the ceil is, y = ceil(x), is applied to" "the tensor elementwise."

Operands:

Operand	Description
X	memref of any type values or tensor of any type values

Results:

Result	Description
Y	memref of any type values or tensor of any type values

onnx.Clip (ONNXClipOp)

ONNX Clip operation

"Clip operator limits the given input within an interval. The interval is" "specified by the inputs 'min' and 'max'. They default to" "numeric_limits::lowest() and numeric_limits::max(), respectively."

Operands:

Operand	Description
input	memref of any type values or tensor of any type values
min	memref of any type values or tensor of any type values or none type
max	memref of any type values or tensor of any type values or none type

Results:

Result	Description
output	memref of any type values or tensor of any type values

onnx.Compress (ONNXCompressOp)

ONNX Compress operation

"Selects slices from an input tensor along a given axis where condition evaluates to True for each axis index." " In case axis is not provided, input is flattened before elements are selected." " Compress behaves like numpy.compress: https://docs.scipy.org/doc/numpy/reference/generated/numpy.compress.html" " "

Attributes:

Attribute	MLIR Type	Description
axis	IntegerAttr	64-bit signless integer attribute

Operands:

Operand	Description
input	memref of any type values or tensor of any type values
condition	memref of any type values or tensor of any type values

Results:

Result	Description
output	memref of any type values or tensor of any type values

onnx.ConcatFromSequence (ONNXConcatFromSequenceOp)

ONNX ConcatFromSequence operation

"Concatenate a sequence of tensors into a single tensor." "All input tensors must have the same shape, except for the dimension size of the axis to concatenate on." "By default 'new_axis' is 0, the behavior is similar to numpy.concatenate." "When 'new_axis' is 1, the behavior is similar to numpy.stack."

Attributes:

Attribute	MLIR Type	Description
axis	IntegerAttr	64-bit signless integer attribute
new_axis	IntegerAttr	64-bit signless integer attribute

Operands:

Operand	Description
input_sequence	memref of any type values or tensor of any type values

Results:

Result	Description
concat_result	memref of any type values or tensor of any type values

onnx.Concat (ONNXConcatOp)

ONNX Concat operation

"Concatenate a list of tensors into a single tensor. All input tensors must have the same shape, except for the dimension size of the axis to concatenate on."

Attributes:

Attribute	MLIR Type	Description
axis	IntegerAttr	64-bit signless integer attribute

Operands:

Operand	Description
inputs	memref of any type values or tensor of any type values

Results:

Result	Description
concat_result	memref of any type values or tensor of any type values

onnx.ConstantOfShape (ONNXConstantOfShapeOp)

ONNX ConstantOfShape operation

"Generate a tensor with given value and shape."

Attributes:

Attribute	MLIR Type	Description
value	Attribute	any attribute

Operands:

Operand	Description
input	memref of any type values or tensor of any type values

Results:

Result	Description
output	memref of any type values or tensor of any type values

onnx.Constant (ONNXConstantOp)

ONNX Constant operation

"A constant tensor. Exactly one of the two attributes, either value or sparse_value," "must be specified."

Attributes:

Attribute	MLIR Type	Description
sparse_value	Attribute	any attribute
value	Attribute	any attribute

Results:

Result	Description
output	memref of any type values or tensor of any type values

onnx.ConvInteger (ONNXConvIntegerOp)

ONNX ConvInteger operation

"The integer convolution operator consumes an input tensor, its zero-point, a filter, and its zero-point," "and computes the output. The production MUST never overflow. The accumulation may overflow if and only if in 32 bits."

Attributes:

Attribute	MLIR Type	Description
auto_pad	StringAttr	string attribute
dilations	ArrayAttr	64-bit integer array attribute
group	IntegerAttr	64-bit signless integer attribute
kernel_shape	ArrayAttr	64-bit integer array attribute
pads	ArrayAttr	64-bit integer array attribute
strides	ArrayAttr	64-bit integer array attribute

Operands:

Operand	Description
x	memref of any type values or tensor of any type values
w	memref of any type values or tensor of any type values
x_zero_point	memref of any type values or tensor of any type values or none type
w_zero_point	memref of any type values or tensor of any type values or none type

Results:

Result	Description
y	memref of any type values or tensor of any type values

onnx.Conv (ONNXConvOp)

ONNX Conv operation

"The convolution operator consumes an input tensor and a filter, and" "computes the output."

Attributes:

Attribute	MLIR Type	Description
auto_pad	StringAttr	string attribute
dilations	ArrayAttr	64-bit integer array attribute
group	IntegerAttr	64-bit signless integer attribute
kernel_shape	ArrayAttr	64-bit integer array attribute
pads	ArrayAttr	64-bit integer array attribute
strides	ArrayAttr	64-bit integer array attribute

Operands:

Operand	Description
X	memref of any type values or tensor of any type values
W	memref of any type values or tensor of any type values
B	memref of any type values or tensor of any type values or none type

Results:

Result	Description
Y	memref of any type values or tensor of any type values

onnx.ConvTranspose (ONNXConvTransposeOp)

ONNX ConvTranspose operation

"The convolution transpose operator consumes an input tensor and a filter," "and computes the output." "" "If the pads parameter is provided the shape of the output is calculated via the following equation:" "" " output_shape[i] = stride[i] * (input_size[i] - 1) + output_padding[i] + ((kernel_shape[i] - 1) * dilations[i] + 1) - pads[start_i] - pads[end_i]" "" "output_shape can also be explicitly specified in which case pads values are auto generated using these equations:" "" " total_padding[i] = stride[i] * (input_size[i] - 1) + output_padding[i] + ((kernel_shape[i] - 1) * dilations[i] + 1) - output_shape[i]" " If (auto_pads != SAME_UPPER): pads[start_i] = total_padding[i]/2; pads[end_i] = total_padding[i] - (total_padding[i]/2)" " Else: pads[start_i] = total_padding[i] - (total_padding[i]/2); pads[end_i] = (total_padding[i]/2)." "" " "

Attributes:

Attribute	MLIR Type	Description
auto_pad	StringAttr	string attribute
dilations	ArrayAttr	64-bit integer array attribute
group	IntegerAttr	64-bit signless integer attribute
kernel_shape	ArrayAttr	64-bit integer array attribute
output_padding	ArrayAttr	64-bit integer array attribute
output_shape	ArrayAttr	64-bit integer array attribute
pads	ArrayAttr	64-bit integer array attribute
strides	ArrayAttr	64-bit integer array attribute

Operands:

Operand	Description
X	memref of any type values or tensor of any type values
W	memref of any type values or tensor of any type values
B	memref of any type values or tensor of any type values or none type

Results:

Result	Description
Y	memref of any type values or tensor of any type values

onnx.Cos (ONNXCosOp)

ONNX Cos operation

"Calculates the cosine of the given input tensor, element-wise."

Operands:

Operand	Description
input	memref of any type values or tensor of any type values

Results:

Result	Description
output	memref of any type values or tensor of any type values

onnx.Cosh (ONNXCoshOp)

ONNX Cosh operation

"Calculates the hyperbolic cosine of the given input tensor element-wise."

Operands:

Operand	Description
input	memref of any type values or tensor of any type values

Results:

Result	Description
output	memref of any type values or tensor of any type values

onnx.CumSum (ONNXCumSumOp)

ONNX CumSum operation

"Performs cumulative sum of the input elements along the given axis." "By default, it will do the sum inclusively meaning the first element is copied as is." "Through an exclusive attribute, this behavior can change to exclude the first element." "It can also perform summation in the opposite direction of the axis. For that, set reverse attribute to 1." "" "Example:" "" "input_x = [1, 2, 3]" "axis=0" "output = [1, 3, 6]" "exclusive=1" "output = [0, 1, 3]" "exclusive=0" "reverse=1" "output = [6, 5, 3]" "exclusive=1" "reverse=1" "output = [5, 3, 0]" "" " "

Attributes:

Attribute	MLIR Type	Description
exclusive	IntegerAttr	64-bit signless integer attribute
reverse	IntegerAttr	64-bit signless integer attribute

Operands:

Operand	Description
x	memref of any type values or tensor of any type values
axis	memref of any type values or tensor of any type values

Results:

Result	Description
y	memref of any type values or tensor of any type values

onnx.DepthToSpace (ONNXDepthToSpaceOp)

ONNX DepthToSpace operation

"DepthToSpace rearranges (permutes) data from depth into blocks of spatial data." "This is the reverse transformation of SpaceToDepth. More specifically, this op outputs a copy of" "the input tensor where values from the depth dimension are moved in spatial blocks to the height" "and width dimensions. By default, mode = DCR." "In the DCR mode, elements along the depth dimension from the input tensor are rearranged in the" "following order: depth, column, and then row. The output y is computed from the input x as below:" "" "b, c, h, w = x.shape" "" "tmp = np.reshape(x, [b, blocksize, blocksize, c // (blocksize2), h, w])" "" "tmp = np.transpose(tmp, [0, 3, 4, 1, 5, 2])" "" "y = np.reshape(tmp, [b, c // (blocksize2), h * blocksize, w * blocksize])" "" "" "In the CRD mode, elements along the depth dimension from the input tensor are rearranged in the" "following order: column, row, and the depth. The output y is computed from the input x as below:" "" "b, c, h, w = x.shape" "" "tmp = np.reshape(x, [b, c // (blocksize ** 2), blocksize, blocksize, h, w])" "" "tmp = np.transpose(tmp, [0, 1, 4, 2, 5, 3])" "" "y = np.reshape(tmp, [b, c // (blocksize ** 2), h * blocksize, w * blocksize])" ""

Attributes:

Attribute	MLIR Type	Description
blocksize	IntegerAttr	64-bit signless integer attribute
mode	StringAttr	string attribute

Operands:

Operand	Description
input	memref of any type values or tensor of any type values

Results:

Result	Description
output	memref of any type values or tensor of any type values

onnx.DequantizeLinear (ONNXDequantizeLinearOp)

ONNX DequantizeLinear operation

"The linear dequantization operator. It consumes a quantized tensor, a scale, a zero point to compute the full precision tensor." "The dequantization formula is y = (x - x_zero_point) * x_scale. 'x_scale' and 'x_zero_point' must have same shape." "'x_zero_point' and 'x' must have same type. 'x' and 'y' must have same shape. In the case of dequantizing int32," "there's no zero point (zero point is supposed to be 0)."

Operands:

Operand	Description
x	memref of any type values or tensor of any type values
x_scale	memref of any type values or tensor of any type values
x_zero_point	memref of any type values or tensor of any type values or none type

Results:

Result	Description
y	memref of any type values or tensor of any type values

onnx.Det (ONNXDetOp)

ONNX Det operation

"Det calculates determinant of a square matrix or batches of square matrices." "Det takes one input tensor of shape [*, M, M], where * is zero or more batch dimensions," "and the inner-most 2 dimensions form square matrices." "The output is a tensor of shape [*], containing the determinants of all input submatrices." "e.g., When the input is 2-D, the output is a scalar(shape is empty: [])."

Operands:

Operand	Description
X	memref of any type values or tensor of any type values

Results:

Result	Description
Y	memref of any type values or tensor of any type values

onnx.Div (ONNXDivOp)

ONNX Div operation

"Performs element-wise binary division (with Numpy-style broadcasting support)." "" "This operator supports multidirectional (i.e., Numpy-style) broadcasting; for more details please check the doc."

Operands:

Operand	Description
A	memref of any type values or tensor of any type values
B	memref of any type values or tensor of any type values

Results:

Result	Description
C	memref of any type values or tensor of any type values

onnx.Dropout (ONNXDropoutOp)

ONNX Dropout operation

"Dropout takes one input floating tensor and produces two tensor outputs," "output (floating tensor) and mask (Tensor<bool>). Depending on whether it is" "in test mode or not, the output Y will either be a random dropout, or a simple" "copy of the input. Note that our implementation of Dropout does scaling in" "the training phase, so during testing nothing needs to be done." "This operator has optional inputs/outputs. See the doc for more details about the representation of optional arguments. An empty string may be used in the place of an actual argument's name to indicate a missing argument. Trailing optional arguments (those not followed by an argument that is present) may also be simply omitted."

Attributes:

Attribute	MLIR Type	Description
ratio	FloatAttr	32-bit float attribute

Operands:

Operand	Description
data	memref of any type values or tensor of any type values

Results:

Result	Description
output	memref of any type values or tensor of any type values
mask	memref of any type values or tensor of any type values or none type

onnx.DynamicQuantizeLinear (ONNXDynamicQuantizeLinearOp)

ONNX DynamicQuantizeLinear operation

"A Function to fuse calculation for Scale, Zero Point and FP32->8Bit convertion of FP32 Input data." "Outputs Scale, ZeroPoint and Quantized Input for a given FP32 Input." "Scale is calculated as:" "" " y_scale = (max(x) - min(x))/(qmax - qmin)" " * where qmax and qmin are max and min values for quantization range .i.e [0, 255] in case of uint8" " * data range is adjusted to include 0." "" "Zero point is calculated as:" "" "intermediate_zero_point = (qmin - min(x))/(qmax - qmin)" "y_zero_point = cast(round(saturate(itermediate_zero_point)))" "* where qmax and qmin are max and min values for quantization range .i.e [0, 255] in case of uint8" "* for saturation, it saturates to [0, 255] if it's uint8, or [-127, 127] if it's int8. Right now only uint8 is supported." "* rounding to nearest ties to even." "" "Data quantization formula is:" "" "y = saturate (round (x / y_scale) + y_zero_point)" "* for saturation, it saturates to [0, 255] if it's uint8, or [-127, 127] if it's int8. Right now only uint8 is supported." "* rounding to nearest ties to even." ""

Operands:

Operand	Description
x	memref of any type values or tensor of any type values

Results:

Result	Description
y	memref of any type values or tensor of any type values
y_scale	memref of any type values or tensor of any type values
y_zero_point	memref of any type values or tensor of any type values

onnx.Elu (ONNXEluOp)

ONNX Elu operation

"Elu takes one input data (Tensor) and produces one output data" "(Tensor) where the function f(x) = alpha * (exp(x) - 1.) for x <" "0, f(x) = x for x >= 0., is applied to the tensor elementwise." ""

Attributes:

Attribute	MLIR Type	Description
alpha	FloatAttr	32-bit float attribute

Operands:

Operand	Description
X	memref of any type values or tensor of any type values

Results:

Result	Description
Y	memref of any type values or tensor of any type values

onnx.EntryPoint (ONNXEntryPointOp)

Indicate ONNX entry point

The "onnx.EntryPoint" function indicates the main entry point of ONNX model.

onnx.Equal (ONNXEqualOp)

ONNX Equal operation

"Returns the tensor resulted from performing the equal logical operation" "elementwise on the input tensors A and B (with Numpy-style broadcasting support)." "" "This operator supports multidirectional (i.e., Numpy-style) broadcasting; for more details please check the doc."

Operands:

Operand	Description
A	memref of any type values or tensor of any type values
B	memref of any type values or tensor of any type values

Results:

Result	Description
C	memref of any type values or tensor of any type values

onnx.Erf (ONNXErfOp)

ONNX Erf operation

"Computes the error function of the given input tensor element-wise."

Operands:

Operand	Description
input	memref of any type values or tensor of any type values

Results:

Result	Description
output	memref of any type values or tensor of any type values

onnx.Exp (ONNXExpOp)

ONNX Exp operation

"Calculates the exponential of the given input tensor, element-wise."

Operands:

Operand	Description
input	memref of any type values or tensor of any type values

Results:

Result	Description
output	memref of any type values or tensor of any type values

onnx.Expand (ONNXExpandOp)

ONNX Expand operation

"Broadcast the input tensor following the given shape and the broadcast rule." "The broadcast rule is similar to numpy.array(input) * numpy.ones(shape):" "Dimensions are right alignment;" "Two corresponding dimension must have the same value, or one of them is equal to 1." "Also, this operator is similar to numpy.broadcast_to(input, shape)," "but the major difference is numpy.broadcast_to() does not allow shape to be smaller than input.size()." "It is possible that the output.shape is not equal to shape, when some dimensions in shape is equal to 1," "or the shape.ndim < input.shape.ndim."

Operands:

Operand	Description
input	memref of any type values or tensor of any type values
shape	memref of any type values or tensor of any type values

Results:

Result	Description
output	memref of any type values or tensor of any type values

onnx.EyeLike (ONNXEyeLikeOp)

ONNX EyeLike operation

"Generate a 2D tensor (matrix) with ones on the diagonal and zeros everywhere else. Only 2D" "tensors are supported, i.e. input T1 must be of rank 2. The shape of the output tensor is the" "same as the input tensor. The data type can be specified by the 'dtype' argument. If" "'dtype' is not specified, then the type of input tensor is used. By default, the main diagonal" "is populated with ones, but attribute 'k' can be used to populate upper or lower diagonals." "The 'dtype' argument must be one of the data types specified in the 'DataType' enum field in the" "TensorProto message and be valid as an output type."

Attributes:

Attribute	MLIR Type	Description
dtype	IntegerAttr	64-bit signless integer attribute
k	IntegerAttr	64-bit signless integer attribute

Operands:

Operand	Description
input	memref of any type values or tensor of any type values

Results:

Result	Description
output	memref of any type values or tensor of any type values

onnx.Flatten (ONNXFlattenOp)

ONNX Flatten operation

"Flattens the input tensor into a 2D matrix. If input tensor has shape" "(d_0, d_1, ... d_n) then the output will have shape" "(d_0 X d_1 ... d_(axis-1), d_axis X d_(axis+1) ... X dn)."

Attributes:

Attribute	MLIR Type	Description
axis	IntegerAttr	64-bit signless integer attribute

Operands:

Operand	Description
input	memref of any type values or tensor of any type values

Results:

Result	Description
output	memref of any type values or tensor of any type values

onnx.Floor (ONNXFloorOp)

ONNX Floor operation

"Floor takes one input data (Tensor) and produces one output data" "(Tensor) where the floor is, y = floor(x), is applied to" "the tensor elementwise."

Operands:

Operand	Description
X	memref of any type values or tensor of any type values

Results:

Result	Description
Y	memref of any type values or tensor of any type values

onnx.GRU (ONNXGRUOp)

ONNX GRU operation

"Computes an one-layer GRU. This operator is usually supported via some custom" "implementation such as CuDNN." "" "Notations:" "" "X - input tensor" "" "z - update gate" "" "r - reset gate" "" "h - hidden gate" "" "t - time step (t-1 means previous time step)" "" "W[zrh] - W parameter weight matrix for update, reset, and hidden gates" "" "R[zrh] - R recurrence weight matrix for update, reset, and hidden gates" "" "Wb[zrh] - W bias vectors for update, reset, and hidden gates" "" "Rb[zrh] - R bias vectors for update, reset, and hidden gates" "" "WB[zrh] - W parameter weight matrix for backward update, reset, and hidden gates" "" "RB[zrh] - R recurrence weight matrix for backward update, reset, and hidden gates" "" "WBb[zrh] - W bias vectors for backward update, reset, and hidden gates" "" "RBb[zrh] - R bias vectors for backward update, reset, and hidden gates" "" "H - Hidden state" "" "num_directions - 2 if direction == bidirectional else 1" "" "Activation functions:" "" " Relu(x) - max(0, x)" "" " Tanh(x) - (1 - e^{-2x})/(1 + e^{-2x})" "" " Sigmoid(x) - 1/(1 + e^{-x})" "" " (NOTE: Below are optional)" "" " Affine(x) - alphax + beta" "" " LeakyRelu(x) - x if x >= 0 else alpha * x" "" " ThresholdedRelu(x) - x if x >= alpha else 0" "" " ScaledTanh(x) - alphaTanh(betax)" "" " HardSigmoid(x) - min(max(alphax + beta, 0), 1)" "" " Elu(x) - x if x >= 0 else alpha*(e^x - 1)" "" " Softsign(x) - x/(1 + |x|)" "" " Softplus(x) - log(1 + e^x)" "" "Equations (Default: f=Sigmoid, g=Tanh):" "" " - zt = f(Xt*(Wz^T) + Ht-1*(Rz^T) + Wbz + Rbz)" "" " - rt = f(Xt*(Wr^T) + Ht-1*(Rr^T) + Wbr + Rbr)" "" " - ht = g(Xt*(Wh^T) + (rt (.) Ht-1)(Rh^T) + Rbh + Wbh) # default, when linear_before_reset = 0" "" " - ht = g(Xt(Wh^T) + (rt (.) (Ht-1*(Rh^T) + Rbh)) + Wbh) # when linear_before_reset != 0" "" " - Ht = (1 - zt) (.) ht + zt (.) Ht-1" "This operator has optional inputs/outputs. See the doc for more details about the representation of optional arguments. An empty string may be used in the place of an actual argument's name to indicate a missing argument. Trailing optional arguments (those not followed by an argument that is present) may also be simply omitted."

Attributes:

Attribute	MLIR Type	Description
activation_alpha	ArrayAttr	32-bit float array attribute
activation_beta	ArrayAttr	32-bit float array attribute
activations	ArrayAttr	string array attribute
clip	FloatAttr	32-bit float attribute
direction	StringAttr	string attribute
hidden_size	IntegerAttr	64-bit signless integer attribute
linear_before_reset	IntegerAttr	64-bit signless integer attribute

Operands:

Operand	Description
X	memref of any type values or tensor of any type values
W	memref of any type values or tensor of any type values
R	memref of any type values or tensor of any type values
B	memref of any type values or tensor of any type values or none type
sequence_lens	memref of any type values or tensor of any type values or none type
initial_h	memref of any type values or tensor of any type values or none type

Results:

Result	Description
Y	memref of any type values or tensor of any type values or none type
Y_h	memref of any type values or tensor of any type values or none type

onnx.GatherElements (ONNXGatherElementsOp)

ONNX GatherElements operation

"GatherElements takes two inputs data and indices of the same rank r >= 1" "and an optional attribute axis that identifies an axis of data" "(by default, the outer-most axis, that is axis 0). It is an indexing operation" "that produces its output by indexing into the input data tensor at index" "positions determined by elements of the indices tensor." "Its output shape is the same as the shape of indices and consists of one value" "(gathered from the data) for each element in indices." "" "For instance, in the 3-D case (r = 3), the output produced is determined" "by the following equations: " "" " out[i][j][k] = input[index[i][j][k]][j][k] if axis = 0," " out[i][j][k] = input[i][index[i][j][k]][k] if axis = 1," " out[i][j][k] = input[i][j][index[i][j][k]] if axis = 2," "" "" "This operator is also the inverse of ScatterElements. It is similar to Torch's gather operation." "" "Example 1:" "" " data = [" " [1, 2]," " [3, 4]," " ]" " indices = [" " [0, 0]," " [1, 0]," " ]" " axis = 1" " output = [" " [" " [1, 1]," " [4, 3]," " ]," " ]" "" "Example 2:" "" " data = [" " [1, 2, 3]," " [4, 5, 6]," " [7, 8, 9]," " ]" " indices = [" " [1, 2, 0]," " [2, 0, 0]," " ]" " axis = 0" " output = [" " [" " [4, 8, 3]," " [7, 2, 3]," " ]," " ]" ""

Attributes:

Attribute	MLIR Type	Description
axis	IntegerAttr	64-bit signless integer attribute

Operands:

Operand	Description
data	memref of any type values or tensor of any type values
indices	memref of any type values or tensor of any type values

Results:

Result	Description
output	memref of any type values or tensor of any type values

onnx.GatherND (ONNXGatherNDOp)

ONNX GatherND operation

"Given data tensor of rank r >= 1, and indices tensor of rank q >= 1, this operator gathers " "slices of data into an output tensor of rank q + r - indices_shape[-1] - 1." "" "indices is an q-dimensional integer tensor, best thought of as a (q-1)-dimensional tensor of index-tuples into data, " "where each element defines a slice of data" "" "Some salient points about the inputs' rank and shape:" " " "1) r >= 1 and q >= 1 are to be honored. There is no dependency condition to be met between ranks r and q" "" "2) The indices_shape[-1] should have a value between 1 (inclusive) and rank r (inclusive) " "" "3) All values in indices are expected to be within bounds [-s, s-1] along axis of size s (i.e.) -data_shape[i] <= indices[...,i] <= data_shape[i] - 1." " It is an error if any of the index values are out of bounds." "" "The output is computed as follows:" "" "The output tensor is obtained by mapping each index-tuple in the indices tensor to the corresponding slice of the input data." " " "1) If indices_shape[-1] > r => error condition" "" "2) If indices_shape[-1] == r, since the rank of indices is q, indices can be thought of as a (q-1)-dimensional tensor" " containing 1-D tensors of dimension r. Let us think of each such r ranked tensor as indices_slice. " " Each scalar value corresponding to data[indices_slice] is filled into the corresponding location of the (q-1)-dimensional tensor " " to form the output tensor (Example 1 below)" "" "3) If indices_shape[-1] < r, since the rank of indices is q, indices can be thought of as a (q-1)-dimensional tensor" " containing 1-D tensors of dimension < r. Let us think of each such tensors as indices_slice. " " Each tensor slice corresponding to data[indices_slice , :] is filled into the corresponding location of the (q-1)-dimensional tensor " " to form the output tensor (Examples 2, 3, and 4 below)" "" "This operator is the inverse of ScatterND." "" "Example 1" "" " data = 0,1],[2,3 # data_shape = [2, 2]" "" " indices = 0,0],[1,1 # indices_shape = [2, 2]" "" " output = [0,3] # output_shape = [2]" "" "Example 2" "" " data = 0,1],[2,3 # data_shape = [2, 2]" "" " indices = 1],[0 # indices_shape = [2, 1]" "" " output = 2,3],[0,1 # output_shape = [2, 2]" "" "Example 3" "" " data = [0,1],[2,3,4,5],[6,7] # data_shape = [2, 2, 2]" "" " indices = 0,1],[1,0 # indices_shape = [2, 2]" "" " output = 2,3],[4,5 # output_shape = [2, 2] " "" "Example 4" "" " data = [0,1],[2,3,4,5],[6,7] # data_shape = [2, 2, 2]" "" " indices = [0,1,1,0] # indices_shape = [2, 1, 2]" "" " output = [2,3,4,5] # output_shape = [2, 1, 2] " ""

Operands:

Operand	Description
data	memref of any type values or tensor of any type values
indices	memref of any type values or tensor of any type values

Results:

Result	Description
output	memref of any type values or tensor of any type values

onnx.Gather (ONNXGatherOp)

ONNX Gather operation

"Given data tensor of rank r >= 1, and indices tensor of rank q, gather" "entries of the axis dimension of data (by default outer-most one as axis=0) indexed by indices, and concatenates" "them in an output tensor of rank q + (r - 1)." "" "axis = 0 :" "" "Let" "k = indices[i_{0}, ..., i_{q-1}]" "Then" "output[i_{0}, ..., i_{q-1}, j_{0}, ..., j_{r-2}] = input[k , j_{0}, ..., j_{r-2}]" "" "" " data = [" " [1.0, 1.2]," " [2.3, 3.4]," " [4.5, 5.7]," " ]" " indices = [" " [0, 1]," " [1, 2]," " ]" " output = [" " [" " [1.0, 1.2]," " [2.3, 3.4]," " ]," " [" " [2.3, 3.4]," " [4.5, 5.7]," " ]," " ]" "" "axis = 1 :" "" "Let" "k = indices[i_{0}, ..., i_{q-1}]" "Then" "output[i_{0}, ..., i_{q-1}, j_{0}, ..., j_{r-2}] = input[j_{0}, k, j_{1}, ..., j_{r-2}]" "" "" " data = [" " [1.0, 1.2, 1.9]," " [2.3, 3.4, 3.9]," " [4.5, 5.7, 5.9]," " ]" " indices = [" " [0, 2]," " ]" " axis = 1," " output = [" " [" " [1.0, 1.9]," " [2.3, 3.9]," " [4.5, 5.9]," " ]," " ]" ""

Attributes:

Attribute	MLIR Type	Description
axis	IntegerAttr	64-bit signless integer attribute

Operands:

Operand	Description
data	memref of any type values or tensor of any type values
indices	memref of any type values or tensor of any type values

Results:

Result	Description
output	memref of any type values or tensor of any type values

onnx.Gemm (ONNXGemmOp)

ONNX Gemm operation

"General Matrix multiplication:" "https://en.wikipedia.org/wiki/Basic_Linear_Algebra_Subprograms#Level_3" "" "A' = transpose(A) if transA else A" "" "B' = transpose(B) if transB else B" "" "Compute Y = alpha * A' * B' + beta * C, where input tensor A has shape (M, K) or (K, M)," "input tensor B has shape (K, N) or (N, K), input tensor C is broadcastable to shape (M, N)," "and output tensor Y has shape (M, N). A will be transposed before doing the" "computation if attribute transA is non-zero, same for B and transB." "This operator supports unidirectional broadcasting (tensor C should be unidirectional broadcastable to tensor A * B); for more details please check the doc." "This operator has optional inputs/outputs. See the doc for more details about the representation of optional arguments. An empty string may be used in the place of an actual argument's name to indicate a missing argument. Trailing optional arguments (those not followed by an argument that is present) may also be simply omitted."

Attributes:

Attribute	MLIR Type	Description
alpha	FloatAttr	32-bit float attribute
beta	FloatAttr	32-bit float attribute
transA	IntegerAttr	64-bit signless integer attribute
transB	IntegerAttr	64-bit signless integer attribute

Operands:

Operand	Description
A	memref of any type values or tensor of any type values
B	memref of any type values or tensor of any type values
C	memref of any type values or tensor of any type values or none type

Results:

Result	Description
Y	memref of any type values or tensor of any type values

onnx.GlobalAveragePool (ONNXGlobalAveragePoolOp)

ONNX GlobalAveragePool operation

"GlobalAveragePool consumes an input tensor X and applies average pooling across" " the values in the same channel. This is equivalent to AveragePool with kernel size" " equal to the spatial dimension of input tensor."

Operands:

Operand	Description
X	memref of any type values or tensor of any type values

Results:

Result	Description
Y	memref of any type values or tensor of any type values

onnx.GlobalLpPool (ONNXGlobalLpPoolOp)

ONNX GlobalLpPool operation

"GlobalLpPool consumes an input tensor X and applies lp pool pooling across" " the values in the same channel. This is equivalent to LpPool with kernel size" " equal to the spatial dimension of input tensor."

Attributes:

Attribute	MLIR Type	Description
p	IntegerAttr	64-bit signless integer attribute

Operands:

Operand	Description
X	memref of any type values or tensor of any type values

Results:

Result	Description
Y	memref of any type values or tensor of any type values

onnx.GlobalMaxPool (ONNXGlobalMaxPoolOp)

ONNX GlobalMaxPool operation

"GlobalMaxPool consumes an input tensor X and applies max pooling across" " the values in the same channel. This is equivalent to MaxPool with kernel size" " equal to the spatial dimension of input tensor."

Operands:

Operand	Description
X	memref of any type values or tensor of any type values

Results:

Result	Description
Y	memref of any type values or tensor of any type values

onnx.Greater (ONNXGreaterOp)

ONNX Greater operation

"Returns the tensor resulted from performing the greater logical operation" "elementwise on the input tensors A and B (with Numpy-style broadcasting support)." "" "This operator supports multidirectional (i.e., Numpy-style) broadcasting; for more details please check the doc."

Operands:

Operand	Description
A	memref of any type values or tensor of any type values
B	memref of any type values or tensor of any type values

Results:

Result	Description
C	memref of any type values or tensor of any type values

onnx.HardSigmoid (ONNXHardSigmoidOp)

ONNX HardSigmoid operation

"HardSigmoid takes one input data (Tensor) and produces one output data" "(Tensor) where the HardSigmoid function, y = max(0, min(1, alpha * x + beta))," "is applied to the tensor elementwise."

Attributes:

Attribute	MLIR Type	Description
alpha	FloatAttr	32-bit float attribute
beta	FloatAttr	32-bit float attribute

Operands:

Operand	Description
X	memref of any type values or tensor of any type values

Results:

Result	Description
Y	memref of any type values or tensor of any type values

onnx.Hardmax (ONNXHardmaxOp)

ONNX Hardmax operation

"The operator computes the hardmax (1 for the first maximum value, and 0 for all others) values for each layer in the batch" " of the given input." "" "The input does not need to explicitly be a 2D vector; rather, it will be" "coerced into one. For an arbitrary n-dimensional tensor" "input \in [a_0, a_1, ..., a_{k-1}, a_k, ..., a_{n-1}] and k is" "the axis provided, then input will be coerced into a 2-dimensional tensor with" "dimensions [a_0 * ... * a_{k-1}, a_k * ... * a_{n-1}]. For the default" "case where axis=1, this means the input tensor will be coerced into a 2D tensor" "of dimensions [a_0, a_1 * ... * a_{n-1}], where a_0 is often the batch size." "In this situation, we must have a_0 = N and a_1 * ... * a_{n-1} = D." "Each of these dimensions must be matched correctly, or else the operator" "will throw errors. The output tensor has the same shape" "and contains the hardmax values of the corresponding input."

Attributes:

Attribute	MLIR Type	Description
axis	IntegerAttr	64-bit signless integer attribute

Operands:

Operand	Description
input	memref of any type values or tensor of any type values

Results:

Result	Description
output	memref of any type values or tensor of any type values

onnx.Identity (ONNXIdentityOp)

ONNX Identity operation

"Identity operator"

Operands:

Operand	Description
input	memref of any type values or tensor of any type values

Results:

Result	Description
output	memref of any type values or tensor of any type values

onnx.If (ONNXIfOp)

ONNX If operation

"If conditional"

Attributes:

Attribute	MLIR Type	Description
else_branch	Attribute	any attribute
then_branch	Attribute	any attribute

Operands:

Operand	Description
cond	memref of any type values or tensor of any type values

Results:

Result	Description
outputs	memref of any type values or tensor of any type values

onnx.InstanceNormalization (ONNXInstanceNormalizationOp)

ONNX InstanceNormalization operation

"Carries out instance normalization as described in the paper" "https://arxiv.org/abs/1607.08022." "" "y = scale * (x - mean) / sqrt(variance + epsilon) + B," "where mean and variance are computed per instance per channel." ""

Attributes:

Attribute	MLIR Type	Description
epsilon	FloatAttr	32-bit float attribute

Operands:

Operand	Description
input	memref of any type values or tensor of any type values
scale	memref of any type values or tensor of any type values
B	memref of any type values or tensor of any type values

Results:

Result	Description
output	memref of any type values or tensor of any type values

onnx.IsInf (ONNXIsInfOp)

ONNX IsInf operation

"Map infinity to true and other values to false."

Attributes:

Attribute	MLIR Type	Description
detect_negative	IntegerAttr	64-bit signless integer attribute
detect_positive	IntegerAttr	64-bit signless integer attribute

Operands:

Operand	Description
X	memref of any type values or tensor of any type values

Results:

Result	Description
Y	memref of any type values or tensor of any type values

onnx.IsNaN (ONNXIsNaNOp)

ONNX IsNaN operation

"Returns which elements of the input are NaN."

Operands:

Operand	Description
X	memref of any type values or tensor of any type values

Results:

Result	Description
Y	memref of any type values or tensor of any type values

onnx.LRN (ONNXLRNOp)

ONNX LRN operation

"Local Response Normalization proposed in the AlexNet paper." "It normalizes over local input regions." "The local region is defined across the channels. For an element X[n, c, d1, ..., dk] in a tensor" "of shape (N x C x D1 x D2, ..., Dk), its region is" "{X[n, i, d1, ..., dk] | max(0, c - floor((size - 1) / 2)) <= i <= min(C - 1, c + ceil((size - 1) / 2))}." "" "square_sum[n, c, d1, ..., dk] = sum(X[n, i, d1, ..., dk] ^ 2)," "where max(0, c - floor((size - 1) / 2)) <= i <= min(C - 1, c + ceil((size - 1) / 2))." "" "Y[n, c, d1, ..., dk] = X[n, c, d1, ..., dk] / (bias + alpha / size * square_sum[n, c, d1, ..., dk] ) ^ beta"

Attributes:

Attribute	MLIR Type	Description
alpha	FloatAttr	32-bit float attribute
beta	FloatAttr	32-bit float attribute
bias	FloatAttr	32-bit float attribute
size	IntegerAttr	64-bit signless integer attribute

Operands:

Operand	Description
X	memref of any type values or tensor of any type values

Results:

Result	Description
Y	memref of any type values or tensor of any type values

onnx.LSTM (ONNXLSTMOp)

ONNX LSTM operation

"Computes an one-layer LSTM. This operator is usually supported via some" "custom implementation such as CuDNN." "" "Notations:" "" "X - input tensor" "" "i - input gate" "" "o - output gate" "" "f - forget gate" "" "c - cell gate" "" "t - time step (t-1 means previous time step)" "" "W[iofc] - W parameter weight matrix for input, output, forget, and cell gates" "" "R[iofc] - R recurrence weight matrix for input, output, forget, and cell gates" "" "Wb[iofc] - W bias vectors for input, output, forget, and cell gates" "" "Rb[iofc] - R bias vectors for input, output, forget, and cell gates" "" "P[iof] - P peephole weight vector for input, output, and forget gates" "" "WB[iofc] - W parameter weight matrix for backward input, output, forget, and cell gates" "" "RB[iofc] - R recurrence weight matrix for backward input, output, forget, and cell gates" "" "WBb[iofc] - W bias vectors for backward input, output, forget, and cell gates" "" "RBb[iofc] - R bias vectors for backward input, output, forget, and cell gates" "" "PB[iof] - P peephole weight vector for backward input, output, and forget gates" "" "H - Hidden state" "" "num_directions - 2 if direction == bidirectional else 1" "" "Activation functions:" "" " Relu(x) - max(0, x)" "" " Tanh(x) - (1 - e^{-2x})/(1 + e^{-2x})" "" " Sigmoid(x) - 1/(1 + e^{-x})" "" " (NOTE: Below are optional)" "" " Affine(x) - alphax + beta" "" " LeakyRelu(x) - x if x >= 0 else alpha * x" "" " ThresholdedRelu(x) - x if x >= alpha else 0" "" " ScaledTanh(x) - alphaTanh(betax)" "" " HardSigmoid(x) - min(max(alphax + beta, 0), 1)" "" " Elu(x) - x if x >= 0 else alpha*(e^x - 1)" "" " Softsign(x) - x/(1 + |x|)" "" " Softplus(x) - log(1 + e^x)" "" "Equations (Default: f=Sigmoid, g=Tanh, h=Tanh):" "" " - it = f(Xt*(Wi^T) + Ht-1*(Ri^T) + Pi (.) Ct-1 + Wbi + Rbi)" "" " - ft = f(Xt*(Wf^T) + Ht-1*(Rf^T) + Pf (.) Ct-1 + Wbf + Rbf)" "" " - ct = g(Xt*(Wc^T) + Ht-1*(Rc^T) + Wbc + Rbc)" "" " - Ct = ft (.) Ct-1 + it (.) ct" "" " - ot = f(Xt*(Wo^T) + Ht-1*(Ro^T) + Po (.) Ct + Wbo + Rbo)" "" " - Ht = ot (.) h(Ct)" "This operator has optional inputs/outputs. See the doc for more details about the representation of optional arguments. An empty string may be used in the place of an actual argument's name to indicate a missing argument. Trailing optional arguments (those not followed by an argument that is present) may also be simply omitted."

Attributes:

Attribute	MLIR Type	Description
activation_alpha	ArrayAttr	32-bit float array attribute
activation_beta	ArrayAttr	32-bit float array attribute
activations	ArrayAttr	string array attribute
clip	FloatAttr	32-bit float attribute
direction	StringAttr	string attribute
hidden_size	IntegerAttr	64-bit signless integer attribute
input_forget	IntegerAttr	64-bit signless integer attribute

Operands:

Operand	Description
X	memref of any type values or tensor of any type values
W	memref of any type values or tensor of any type values
R	memref of any type values or tensor of any type values
B	memref of any type values or tensor of any type values or none type
sequence_lens	memref of any type values or tensor of any type values or none type
initial_h	memref of any type values or tensor of any type values or none type
initial_c	memref of any type values or tensor of any type values or none type
P	memref of any type values or tensor of any type values or none type

Results:

Result	Description
Y	memref of any type values or tensor of any type values or none type
Y_h	memref of any type values or tensor of any type values or none type
Y_c	memref of any type values or tensor of any type values or none type

onnx.LeakyRelu (ONNXLeakyReluOp)

ONNX LeakyRelu operation

"LeakyRelu takes input data (Tensor) and an argument alpha, and produces one" "output data (Tensor) where the function f(x) = alpha * x for x < 0," "f(x) = x for x >= 0, is applied to the data tensor elementwise."

Attributes:

Attribute	MLIR Type	Description
alpha	FloatAttr	32-bit float attribute

Operands:

Operand	Description
X	memref of any type values or tensor of any type values

Results:

Result	Description
Y	memref of any type values or tensor of any type values

onnx.Less (ONNXLessOp)

ONNX Less operation

"Returns the tensor resulted from performing the less logical operation" "elementwise on the input tensors A and B (with Numpy-style broadcasting support)." "" "This operator supports multidirectional (i.e., Numpy-style) broadcasting; for more details please check the doc."

Operands:

Operand	Description
A	memref of any type values or tensor of any type values
B	memref of any type values or tensor of any type values

Results:

Result	Description
C	memref of any type values or tensor of any type values

onnx.Log (ONNXLogOp)

ONNX Log operation

"Calculates the natural log of the given input tensor, element-wise."

Operands:

Operand	Description
input	memref of any type values or tensor of any type values

Results:

Result	Description
output	memref of any type values or tensor of any type values

onnx.LogSoftmax (ONNXLogSoftmaxOp)

ONNX LogSoftmax operation

"The operator computes the logsoftmax (log of softmax) values for each layer in the batch" " of the given input." "" "The input does not need to explicitly be a 2D vector; rather, it will be" "coerced into one. For an arbitrary n-dimensional tensor" "input \in [a_0, a_1, ..., a_{k-1}, a_k, ..., a_{n-1}] and k is" "the axis provided, then input will be coerced into a 2-dimensional tensor with" "dimensions [a_0 * ... * a_{k-1}, a_k * ... * a_{n-1}]. For the default" "case where axis=1, this means the input tensor will be coerced into a 2D tensor" "of dimensions [a_0, a_1 * ... * a_{n-1}], where a_0 is often the batch size." "In this situation, we must have a_0 = N and a_1 * ... * a_{n-1} = D." "Each of these dimensions must be matched correctly, or else the operator" "will throw errors. The output tensor has the same shape" "and contains the logsoftmax values of the corresponding input."

Attributes:

Attribute	MLIR Type	Description
axis	IntegerAttr	64-bit signless integer attribute

Operands:

Operand	Description
input	memref of any type values or tensor of any type values

Results:

Result	Description
output	memref of any type values or tensor of any type values

onnx.Loop (ONNXLoopOp)

ONNX Loop operation

"Generic Looping construct. This loop has multiple termination conditions:" "" "1) Trip count. Iteration count specified at runtime. Set by" " specifying the input M. Optional. Set to empty string to omit." " Note that a static trip count (specified at graph construction time) can be" " specified by passing in a constant node for input M." "2) Loop termination condition. This is an input to the op that determines" " whether to run the first iteration and also a loop-carried dependency for" " the body graph. The body graph must yield a value for the condition variable," " whether this input is provided or not." "" "This table summarizes the operating modes of this operator with equivalent" "C-style code:" "" " Operator inputs defined as (max_trip_count, condition_var)." "" " input ("", ""):" " for (int i=0; ; ++i) {" " cond = ... // Note this value is ignored, but is required in the body" " }" "" " input ("", cond) // Note this is analogous to a while loop" " bool cond = ...;" " for (int i=0; cond; ++i) {" " cond = ...;" " }" "" " input ("", 1) // Note this is analogous to a do-while loop" " bool cond = true" " for (int i=0; cond; ++i) {" " cond = ...;" " }" "" " input (trip_count, "") // Note this is analogous to a for loop" " int trip_count = ..." " for (int i=0; i < trip_count; ++i) {" " cond = ...; // ignored" " }" "" " input (trip_count, cond)" " int trip_count = ...;" " bool cond = ...;" " for (int i=0; i < trip_count && cond; ++i) {" " cond = ...;" " }" "" "" "Sample usage - cond as well as trip count" "" " graph predict-net {" " %a = Constantvalue = <Scalar Tensor [3]>" " %b = Constantvalue = <Scalar Tensor [6]>" " %keepgoing = Constantvalue = <Scalar Tensor [1]>" " %max_trip_count = Constantvalue = <Scalar Tensor [10]>" " %keepgoing_out, %b_out, %user_defined_vals = Loop[body = ](%max_trip_count, %keepgoing, %b)" " return" " }" "" " graph body-net (" " %i[INT32, scalar]" " %keepgoing[BOOL, scalar]" " %b[INT32, scalar]" " ) {" " %my_local = Add(%a, %b)" " %b_out = Sub(%a, %b)" " %keepgoing_out = Greater(%my_local, %b_out)" " %user_defined_vals = Add(%b, %b)" " return %keepgoing_out, %b_out, %user_defined_vals" " }" "" "Sample equivalent C code" "" " {" " /* User-defined code (enclosing scope) /" " int a = 3, b = 6;" " bool keepgoing = true; // Analogous to input cond" " / End user-defined code /" "" " / Implicitly-defined code /" " const int max_trip_count = 10; // Analogous to input M" " int user_defined_vals[]; // Imagine this is resizable" " / End implicitly-defined code /" " for (int i=0; i < max_trip_count && keepgoing; ++i) {" " / User-defined code (loop body) /" " int my_local = a + b; // Reading values in the enclosing scope is fine" " b = a - b; // writes fine if we specify b as a loop-carried dependency" " keepgoing = my_local > b; // keepgoing is a loop-carried dependency" " user_defined_vals[i] = b + b;" " / End user-defined code */" " }" " // my_local = 123; // Can't do this. my_local was defined in the the body" "" " // These below values are live-out from the loop and therefore accessible" " b_out; user_defined_vals; keepgoing_out;" " }" "" "There are several things of note in this code snippet:" "" "1) Values from the enclosing scope (i.e. variable a here) are in scope and can" " be referenced in the inputs of the loop." "2) Any variables which you wish to make available in the enclosing scope (i.e." " the variables b and keepgoing) must be declared as either loop-carried" " dependencies (both at the op inputs and output and at the body net input and" " output) or scan_outputs." "3) Values created in the body cannot be accessed in the enclosing scope." "" "Note that the semantics of this op support "diagonal" or "wavefront" execution." "(See Step 3 here for an example:" "https://devblogs.nvidia.com/optimizing-recurrent-neural-networks-cudnn-5/)." "Frontends should emit multi-layer RNNs as a series of While operators (with" "time being the inner looping dimension), with each successive layer consuming" "the scan_outputs from the previous layer, possibly going through several" "point-wise operators (e.g. dropout, residual connections, linear layer)."

Attributes:

Attribute	MLIR Type	Description
body	Attribute	any attribute

Operands:

Operand	Description
M	memref of any type values or tensor of any type values or none type
cond	memref of any type values or tensor of any type values or none type
v_initial	memref of any type values or tensor of any type values

Results:

Result	Description
v_final_and_scan_outputs	memref of any type values or tensor of any type values

onnx.LpNormalization (ONNXLpNormalizationOp)

ONNX LpNormalization operation

"Given a matrix, apply Lp-normalization along the provided axis."

Attributes:

Attribute	MLIR Type	Description
axis	IntegerAttr	64-bit signless integer attribute
p	IntegerAttr	64-bit signless integer attribute

Operands:

Operand	Description
input	memref of any type values or tensor of any type values

Results:

Result	Description
output	memref of any type values or tensor of any type values

onnx.LpPool (ONNXLpPoolOp)

ONNX LpPool operation

"LpPool consumes an input tensor X and applies Lp pooling across" " the tensor according to kernel sizes, stride sizes, and pad lengths." " Lp pooling consisting of computing the Lp norm on all values of a subset" " of the input tensor according to the kernel size and downsampling the" " data into the output tensor Y for further processing."

Attributes:

Attribute	MLIR Type	Description
auto_pad	StringAttr	string attribute
kernel_shape	ArrayAttr	64-bit integer array attribute
p	IntegerAttr	64-bit signless integer attribute
pads	ArrayAttr	64-bit integer array attribute
strides	ArrayAttr	64-bit integer array attribute

Operands:

Operand	Description
X	memref of any type values or tensor of any type values

Results:

Result	Description
Y	memref of any type values or tensor of any type values

onnx.MatMulInteger (ONNXMatMulIntegerOp)

ONNX MatMulInteger operation

"Matrix product that behaves like numpy.matmul: https://docs.scipy.org/doc/numpy-1.13.0/reference/generated/numpy.matmul.html." "The production MUST never overflow. The accumulation may overflow if and only if in 32 bits."

Operands:

Operand	Description
A	memref of any type values or tensor of any type values
B	memref of any type values or tensor of any type values
a_zero_point	memref of any type values or tensor of any type values or none type
b_zero_point	memref of any type values or tensor of any type values or none type

Results:

Result	Description
Y	memref of any type values or tensor of any type values

onnx.MatMul (ONNXMatMulOp)

ONNX MatMul operation

"Matrix product that behaves like numpy.matmul: https://docs.scipy.org/doc/numpy-1.13.0/reference/generated/numpy.matmul.html"

Operands:

Operand	Description
A	memref of any type values or tensor of any type values
B	memref of any type values or tensor of any type values

Results:

Result	Description
Y	memref of any type values or tensor of any type values

onnx.Max (ONNXMaxOp)

ONNX Max operation

"Element-wise max of each of the input tensors (with Numpy-style broadcasting support)." "All inputs and outputs must have the same data type." "This operator supports multidirectional (i.e., Numpy-style) broadcasting; for more details please check the doc."

Operands:

Operand	Description
data_0	memref of any type values or tensor of any type values

Results:

Result	Description
max	memref of any type values or tensor of any type values

onnx.MaxPool (ONNXMaxPoolOp)

ONNX MaxPool operation

"MaxPool consumes an input tensor X and applies max pooling across" " the tensor according to kernel sizes, stride sizes, and pad lengths." " max pooling consisting of computing the max on all values of a" " subset of the input tensor according to the kernel size and downsampling the" " data into the output tensor Y for further processing. The output spatial shape will be following:" " " " output_spatial_shape[i] = floor((input_spatial_shape[i] + pad_shape[i] - ((kernel_spatial_shape[i] - 1) * dilations[i] + 1)) / strides_spatial_shape[i] + 1)" " " " or" " " " output_spatial_shape[i] = ceil((input_spatial_shape[i] + pad_shape[i] - ((kernel_spatial_shape[i] - 1) * dilations[i] + 1)) / strides_spatial_shape[i] + 1)" " " " if ceil_mode is enabled" "" " " " * pad_shape[i] is sum of pads along axis i" " " "" " auto_pad is a DEPRECATED attribute. If you are using them currently, the output spatial shape will be following:" " " " VALID: output_spatial_shape[i] = ceil((input_spatial_shape[i] - ((kernel_spatial_shape[i] - 1) * dilations[i] + 1) + 1) / strides_spatial_shape[i])" " SAME_UPPER or SAME_LOWER: output_spatial_shape[i] = ceil(input_spatial_shape[i] / strides_spatial_shape[i])" " " " And pad shape will be following if SAME_UPPER or SAME_LOWER:" " " " pad_shape[i] = (output_spatial_shape[i] - 1) * strides_spatial_shape[i] + ((kernel_spatial_shape[i] - 1) * dilations[i] + 1) - input_spatial_shape[i]" " " " The output of each pooling window is maximum number of elements exclude pad." " "

Attributes:

Attribute	MLIR Type	Description
auto_pad	StringAttr	string attribute
ceil_mode	IntegerAttr	64-bit signless integer attribute
dilations	ArrayAttr	64-bit integer array attribute
kernel_shape	ArrayAttr	64-bit integer array attribute
pads	ArrayAttr	64-bit integer array attribute
storage_order	IntegerAttr	64-bit signless integer attribute
strides	ArrayAttr	64-bit integer array attribute

Operands:

Operand	Description
X	memref of any type values or tensor of any type values

Results:

Result	Description
Y	memref of any type values or tensor of any type values
Indices	memref of any type values or tensor of any type values or none type

onnx.MaxPoolSingleOut (ONNXMaxPoolSingleOutOp)

ONNX MaxPool operation with a single output.

"ONNX MaxPool operation with a single output." "See ONNXMaxPoolOp for a full description of the MaxPool semantics."

Attributes:

Attribute	MLIR Type	Description
auto_pad	StringAttr	string attribute
ceil_mode	IntegerAttr	64-bit signless integer attribute
dilations	ArrayAttr	64-bit integer array attribute
kernel_shape	ArrayAttr	64-bit integer array attribute
pads	ArrayAttr	64-bit integer array attribute
storage_order	IntegerAttr	64-bit signless integer attribute
strides	ArrayAttr	64-bit integer array attribute

Operands:

Operand	Description
X	memref of any type values or tensor of any type values

Results:

Result	Description
o_Y	memref of any type values or tensor of any type values

onnx.MaxRoiPool (ONNXMaxRoiPoolOp)

ONNX MaxRoiPool operation

"ROI max pool consumes an input tensor X and region of interests (RoIs) to" " apply max pooling across each RoI, to produce output 4-D tensor of shape" " (num_rois, channels, pooled_shape[0], pooled_shape[1])."

Attributes:

Attribute	MLIR Type	Description
pooled_shape	ArrayAttr	64-bit integer array attribute
spatial_scale	FloatAttr	32-bit float attribute

Operands:

Operand	Description
X	memref of any type values or tensor of any type values
rois	memref of any type values or tensor of any type values

Results:

Result	Description
Y	memref of any type values or tensor of any type values

onnx.MaxUnpool (ONNXMaxUnpoolOp)

ONNX MaxUnpool operation

"MaxUnpool essentially computes the partial inverse of the MaxPool op." " The input information to this op is typically the the output information from a MaxPool op. The first" " input tensor X is the tensor that needs to be unpooled, which is typically the pooled tensor (first output)" " from MaxPool. The second input tensor, I, contains the indices to the (locally maximal) elements corrsponding" " to the elements in the first input tensor X. Input tensor I is typically the second output of the MaxPool op." " The third (optional) input is a tensor that specifies the output size of the unpooling operation." "" "MaxUnpool is intended to do 'partial' inverse of the MaxPool op. 'Partial' because all the non-maximal" " values from the original input to MaxPool are set to zero in the output of the MaxUnpool op. Pooling" " the result of an unpooling operation should give back the original input to the unpooling op." "" "MaxUnpool can produce the same output size for several input sizes, which makes unpooling op ambiguous." " The third input argument, output_size, is meant to disambiguate the op and produce output tensor of" " known/predictable size." "" "In addition to the inputs, MaxUnpool takes three attributes, namely kernel_shape, strides, and pads," " which define the exact unpooling op. The attributes typically have the same values as the corrsponding" " pooling op that the unpooling op is trying to invert."

Attributes:

Attribute	MLIR Type	Description
kernel_shape	ArrayAttr	64-bit integer array attribute
pads	ArrayAttr	64-bit integer array attribute
strides	ArrayAttr	64-bit integer array attribute

Operands:

Operand	Description
X	memref of any type values or tensor of any type values
I	memref of any type values or tensor of any type values
output_shape	memref of any type values or tensor of any type values or none type

Results:

Result	Description
output	memref of any type values or tensor of any type values

onnx.Mean (ONNXMeanOp)

ONNX Mean operation

"Element-wise mean of each of the input tensors (with Numpy-style broadcasting support)." "All inputs and outputs must have the same data type." "This operator supports multidirectional (i.e., Numpy-style) broadcasting; for more details please check the doc."

Operands:

Operand	Description
data_0	memref of any type values or tensor of any type values

Results:

Result	Description
mean	memref of any type values or tensor of any type values

onnx.MeanVarianceNormalization (ONNXMeanVarianceNormalizationOp)

ONNX MeanVarianceNormalization operation

"A MeanVarianceNormalization Function: Perform mean variance normalization" " on the input tensor X using formula:
(X-EX)/sqrt(E(X-EX)^2)"

Attributes:

Attribute	MLIR Type	Description
axes	ArrayAttr	64-bit integer array attribute

Operands:

Operand	Description
X	memref of any type values or tensor of any type values

Results:

Result	Description
Y	memref of any type values or tensor of any type values

onnx.Min (ONNXMinOp)

ONNX Min operation

"Element-wise min of each of the input tensors (with Numpy-style broadcasting support)." "All inputs and outputs must have the same data type." "This operator supports multidirectional (i.e., Numpy-style) broadcasting; for more details please check the doc."

Operands:

Operand	Description
data_0	memref of any type values or tensor of any type values

Results:

Result	Description
min	memref of any type values or tensor of any type values

onnx.Mod (ONNXModOp)

ONNX Mod operation

"Performs element-wise binary modulus (with Numpy-style broadcasting support). " " The sign of the remainder is the same as that of the Divisor." " " " Mod operator can also behave like C fmod() or numpy.fmod. In this case, the sign of the remainder however, will be the same as the Dividend " " (in contrast to integer mod). To force a behavior like numpy.fmod() an 'fmod' Attribute is provided." " This attribute is set to 0 by default causing the behavior to be like integer mod. " " Setting this attribute to 1 causes the remainder to be calculated similar to that of numpy.fmod()." "" " If the input type is floating point, then fmod attribute must be set to 1." " " " In case of dividend being zero, the results will be platform dependent." "" " This operator supports multidirectional (i.e., Numpy-style) broadcasting; for more details please check the doc."

Attributes:

Attribute	MLIR Type	Description
fmod	IntegerAttr	64-bit signless integer attribute

Operands:

Operand	Description
A	memref of any type values or tensor of any type values
B	memref of any type values or tensor of any type values

Results:

Result	Description
C	memref of any type values or tensor of any type values

onnx.Mul (ONNXMulOp)

ONNX Mul operation

"Performs element-wise binary multiplication (with Numpy-style broadcasting support)." "" "This operator supports multidirectional (i.e., Numpy-style) broadcasting; for more details please check the doc."

Operands:

Operand	Description
A	memref of any type values or tensor of any type values
B	memref of any type values or tensor of any type values

Results:

Result	Description
C	memref of any type values or tensor of any type values

onnx.Multinomial (ONNXMultinomialOp)

ONNX Multinomial operation

"Generate a tensor of samples from a multinomial distribution according to the probabilities" "of each of the possible outcomes."

Attributes:

Attribute	MLIR Type	Description
dtype	IntegerAttr	64-bit signless integer attribute
sample_size	IntegerAttr	64-bit signless integer attribute
seed	FloatAttr	32-bit float attribute

Operands:

Operand	Description
input	memref of any type values or tensor of any type values

Results:

Result	Description
output	memref of any type values or tensor of any type values

onnx.Neg (ONNXNegOp)

ONNX Neg operation

"Neg takes one input data (Tensor) and produces one output data" "(Tensor) where each element flipped sign, y = -x, is applied to" "the tensor elementwise."

Operands:

Operand	Description
X	memref of any type values or tensor of any type values

Results:

Result	Description
Y	memref of any type values or tensor of any type values

onnx.NonMaxSuppression (ONNXNonMaxSuppressionOp)

ONNX NonMaxSuppression operation

"Filter out boxes that have high intersection-over-union (IOU) overlap with previously selected boxes." "Bounding boxes with score less than score_threshold are removed. Bounding box format is indicated by attribute center_point_box." "Note that this algorithm is agnostic to where the origin is in the coordinate system and more generally is invariant to" "orthogonal transformations and translations of the coordinate system; thus translating or reflections of the coordinate system" "result in the same boxes being selected by the algorithm." "The selected_indices output is a set of integers indexing into the input collection of bounding boxes representing the selected boxes." "The bounding box coordinates corresponding to the selected indices can then be obtained using the Gather or GatherND operation."

Attributes:

Attribute	MLIR Type	Description
center_point_box	IntegerAttr	64-bit signless integer attribute

Operands:

Operand	Description
boxes	memref of any type values or tensor of any type values
scores	memref of any type values or tensor of any type values
max_output_boxes_per_class	memref of any type values or tensor of any type values or none type
iou_threshold	memref of any type values or tensor of any type values or none type
score_threshold	memref of any type values or tensor of any type values or none type

Results:

Result	Description
selected_indices	memref of any type values or tensor of any type values

onnx.NonZero (ONNXNonZeroOp)

ONNX NonZero operation

"Returns the indices of the elements that are non-zero" " (in row-major order - by dimension)." " NonZero behaves similar to numpy.nonzero:" " https://docs.scipy.org/doc/numpy/reference/generated/numpy.nonzero.html"

Operands:

Operand	Description
X	memref of any type values or tensor of any type values

Results:

Result	Description
Y	memref of any type values or tensor of any type values

onnx.Not (ONNXNotOp)

ONNX Not operation

"Returns the negation of the input tensor element-wise."

Operands:

Operand	Description
X	memref of any type values or tensor of any type values

Results:

Result	Description
Y	memref of any type values or tensor of any type values

onnx.OneHot (ONNXOneHotOp)

ONNX OneHot operation

"Produces a one-hot tensor based on inputs." " The locations represented by the index values in the 'indices' input tensor will have 'on_value'" " and the other locations will have 'off_value' in the output tensor, where 'on_value' and 'off_value'" " are specified as part of required input argument 'values', which is a two-element tensor of format" " [off_value, on_value]. The rank of the output tensor will be one greater than the rank of the" " input tensor. The additional dimension is for one-hot representation. The additional dimension will" " be inserted at the position specified by 'axis'. If 'axis' is not specified then then additional" " dimension will be inserted as the innermost dimension, i.e. axis=-1. The size of the additional" " dimension is specified by required scalar input 'depth'. The type of the output tensor is the same" " as the type of the 'values' input. Any entries in the 'indices' input tensor with values outside" " the range [-depth, depth-1] will result in one-hot representation with all 'off_value' values in the" " output tensor." "" " when axis = 0:" " output[input[i, j, k], i, j, k] = 1 for all i, j, k and 0 otherwise." "" " when axis = -1:" " output[i, j, k, input[i, j, k]] = 1 for all i, j, k and 0 otherwise." ""

Attributes:

Attribute	MLIR Type	Description
axis	IntegerAttr	64-bit signless integer attribute

Operands:

Operand	Description
indices	memref of any type values or tensor of any type values
depth	memref of any type values or tensor of any type values
values	memref of any type values or tensor of any type values

Results:

Result	Description
output	memref of any type values or tensor of any type values

onnx.Or (ONNXOrOp)

ONNX Or operation

"Returns the tensor resulted from performing the or logical operation" "elementwise on the input tensors A and B (with Numpy-style broadcasting support)." "" "This operator supports multidirectional (i.e., Numpy-style) broadcasting; for more details please check the doc."

Operands:

Operand	Description
A	memref of any type values or tensor of any type values
B	memref of any type values or tensor of any type values

Results:

Result	Description
C	memref of any type values or tensor of any type values

onnx.PRelu (ONNXPReluOp)

ONNX PRelu operation

"PRelu takes input data (Tensor) and slope tensor as input, and produces one" "output data (Tensor) where the function f(x) = slope * x for x < 0," "f(x) = x for x >= 0., is applied to the data tensor elementwise." "This operator supports unidirectional broadcasting (tensor slope should be unidirectional broadcastable to input tensor X); for more details please check the doc."

Operands:

Operand	Description
X	memref of any type values or tensor of any type values
slope	memref of any type values or tensor of any type values

Results:

Result	Description
Y	memref of any type values or tensor of any type values

onnx.PadConstantPad (ONNXPadConstantPadOp)

ONNX Pad operation with constant padding value

"this operation is introduced to handle situation" " in which the padding value and padding are constants" "They will become attributes."

Attributes:

Attribute	MLIR Type	Description
pads	ArrayAttr	64-bit integer array attribute
mode	StringAttr	string attribute

Operands:

Operand	Description
data	memref of any type values or tensor of any type values
constant_value	memref of any type values or tensor of any type values

Results:

Result	Description
output	memref of any type values or tensor of any type values

onnx.PadConstantValue (ONNXPadConstantValueOp)

ONNX Pad operation with constant padding value

"this operation is introduced to handle situation" " in which the padding value is a constant. " The value will become an attribute." "This operation is also used to handle the optional value input is missing and the default value 0." "is used."

Attributes:

Attribute	MLIR Type	Description
constant_value	FloatAttr	32-bit float attribute
mode	StringAttr	string attribute

Operands:

Operand	Description
data	memref of any type values or tensor of any type values
pads	memref of any type values or tensor of any type values

Results:

Result	Description
output	memref of any type values or tensor of any type values

onnx.PadConstantValuePad (ONNXPadConstantValuePadOp)

ONNX Pad operation with constant padding value

"this operation is introduced to handle situation" " in which the padding value and padding are constants" "They will become attributes."

Attributes:

Attribute	MLIR Type	Description
pads	ArrayAttr	64-bit integer array attribute
constant_value	FloatAttr	32-bit float attribute
mode	StringAttr	string attribute

Operands:

Operand	Description
data	memref of any type values or tensor of any type values

Results:

Result	Description
output	memref of any type values or tensor of any type values

onnx.Pad (ONNXPadOp)

ONNX Pad operation

"Given a tensor containing the data to be padded (data), a tensor containing the number of start and end pad values for axis (pads), (optionally) a mode, and (optionally) constant_value, " "a padded tensor (output) is generated." "" "The three supported modes are (similar to corresponding modes supported by numpy.pad):" "" "1) constant(default) - pads with a given constant value as specified by constant_value (which defaults to 0)" "" "2) reflect - pads with the reflection of the vector mirrored on the first and last values of the vector along each axis" "" "3) edge - pads with the edge values of array" "" "" "Example 1 (constant mode):" " Insert 0 pads to the beginning of the second dimension." "" " data = " " [" " [1.0, 1.2]," " [2.3, 3.4]," " [4.5, 5.7]," " ] " "" " pads = [0, 2, 0, 0]" "" " mode = 'constant'" "" " constant_value = 0.0" "" " output = " " [" " [" " [0.0, 0.0, 1.0, 1.2]," " [0.0, 0.0, 2.3, 3.4]," " [0.0, 0.0, 4.5, 5.7]," " ]," " ]" "" "" "Example 2 (reflect mode):" " data = " " [" " [1.0, 1.2]," " [2.3, 3.4]," " [4.5, 5.7]," " ] " "" " pads = [0, 2, 0, 0]" "" " mode = 'reflect'" "" " output = " " [" " [" " [1.0, 1.2, 1.0, 1.2]," " [2.3, 3.4, 2.3, 3.4]," " [4.5, 5.7, 4.5, 5.7]," " ]," " ]" "" "" "Example 3 (edge mode):" " data = " " [" " [1.0, 1.2]," " [2.3, 3.4]," " [4.5, 5.7]," " ] " "" " pads = [0, 2, 0, 0]" "" " mode = 'edge'" "" " output = " " [" " [" " [1.0, 1.0, 1.0, 1.2]," " [2.3, 2.3, 2.3, 3.4]," " [4.5, 4.5, 4.5, 5.7]," " ]," " ]" ""

Attributes:

Attribute	MLIR Type	Description
mode	StringAttr	string attribute

Operands:

Operand	Description
data	memref of any type values or tensor of any type values
pads	memref of any type values or tensor of any type values
constant_value	memref of any type values or tensor of any type values or none type

Results:

Result	Description
output	memref of any type values or tensor of any type values

onnx.Pow (ONNXPowOp)

ONNX Pow operation

"Pow takes input data (Tensor) and exponent Tensor, and" "produces one output data (Tensor) where the function f(x) = x^exponent," "is applied to the data tensor elementwise." "This operator supports multidirectional (i.e., Numpy-style) broadcasting; for more details please check the doc."

Operands:

Operand	Description
X	memref of any type values or tensor of any type values
Y	memref of any type values or tensor of any type values

Results:

Result	Description
Z	memref of any type values or tensor of any type values

onnx.QLinearConv (ONNXQLinearConvOp)

ONNX QLinearConv operation

"The convolution operator consumes a quantized input tensor, its scale and zero point," "a quantized filter, its scale and zero point, and output's scale and zero point," "and computes the quantized output. Each scale and zero-point pair must have same shape." "It means they must be either scalars (per tensor) or 1-D tensors (per output channel)." "Each input or output and its related zero point must have same type."

Attributes:

Attribute	MLIR Type	Description
auto_pad	StringAttr	string attribute
dilations	ArrayAttr	64-bit integer array attribute
group	IntegerAttr	64-bit signless integer attribute
kernel_shape	ArrayAttr	64-bit integer array attribute
pads	ArrayAttr	64-bit integer array attribute
strides	ArrayAttr	64-bit integer array attribute

Operands:

Operand	Description
x	memref of any type values or tensor of any type values
x_scale	memref of any type values or tensor of any type values
x_zero_point	memref of any type values or tensor of any type values
w	memref of any type values or tensor of any type values
w_scale	memref of any type values or tensor of any type values
w_zero_point	memref of any type values or tensor of any type values
y_scale	memref of any type values or tensor of any type values
y_zero_point	memref of any type values or tensor of any type values
B	memref of any type values or tensor of any type values or none type

Results:

Result	Description
y	memref of any type values or tensor of any type values

onnx.QLinearMatMul (ONNXQLinearMatMulOp)

ONNX QLinearMatMul operation

"Matrix product that behaves like numpy.matmul: https://docs.scipy.org/doc/numpy-1.13.0/reference/generated/numpy.matmul.html." "It consumes two quantized input tensors, their scales and zero points, scale and zero point of output, and computes the quantized output." "The quantization formula is y = saturate((x / y_scale) + y_zero_point). For (x / y_scale), it is rounding to nearest ties to even." "Refer to https://en.wikipedia.org/wiki/Rounding for details. Scale and zero point must have same shape." "They must be either scalar (per tensor) or 1-D tensor (per row for 'a' and per column for 'b'). If scale and zero point are 1-D tensor," "the number of elements of scale and zero point tensor of input 'a' and output 'y' should be equal to the number of rows of input 'a'," "and the number of elements of scale and zero point tensor of input 'b' should be equal to the number of columns of input 'b'." "Production must never overflow, and accumulation may overflow if and only if in 32 bits."

Operands:

Operand	Description
a	memref of any type values or tensor of any type values
a_scale	memref of any type values or tensor of any type values
a_zero_point	memref of any type values or tensor of any type values
b	memref of any type values or tensor of any type values
b_scale	memref of any type values or tensor of any type values
b_zero_point	memref of any type values or tensor of any type values
y_scale	memref of any type values or tensor of any type values
y_zero_point	memref of any type values or tensor of any type values

Results:

Result	Description
y	memref of any type values or tensor of any type values

onnx.QuantizeLinear (ONNXQuantizeLinearOp)

ONNX QuantizeLinear operation

"The linear per-tensor/layer quantization operator. It consumes a high precision tensor, a scale, a zero point to compute the low precision / quantized tensor." "The quantization formula is y = saturate ((x / y_scale) + y_zero_point). For saturation, it saturates to [0, 255] if it's uint8, or [-128, 127] if it's int8." "For (x / y_scale), it's rounding to nearest ties to even. Refer to https://en.wikipedia.org/wiki/Rounding for details. 'y_zero_point' and 'y' must have same type."

Operands:

Operand	Description
x	memref of any type values or tensor of any type values
y_scale	memref of any type values or tensor of any type values
y_zero_point	memref of any type values or tensor of any type values or none type

Results:

Result	Description
y	memref of any type values or tensor of any type values

onnx.RNN (ONNXRNNOp)

ONNX RNN operation

"Computes an one-layer simple RNN. This operator is usually supported" "via some custom implementation such as CuDNN." "" "Notations:" "" "X - input tensor" "" "i - input gate" "" "t - time step (t-1 means previous time step)" "" "Wi - W parameter weight matrix for input gate" "" "Ri - R recurrence weight matrix for input gate" "" "Wbi - W parameter bias vector for input gate" "" "Rbi - R parameter bias vector for input gate" "" "WBi - W parameter weight matrix for backward input gate" "" "RBi - R recurrence weight matrix for backward input gate" "" "WBbi - WR bias vectors for backward input gate" "" "RBbi - RR bias vectors for backward input gate" "" "H - Hidden state" "" "num_directions - 2 if direction == bidirectional else 1" "" "Activation functions:" "" " Relu(x) - max(0, x)" "" " Tanh(x) - (1 - e^{-2x})/(1 + e^{-2x})" "" " Sigmoid(x) - 1/(1 + e^{-x})" "" " (NOTE: Below are optional)" "" " Affine(x) - alphax + beta" "" " LeakyRelu(x) - x if x >= 0 else alpha * x" "" " ThresholdedRelu(x) - x if x >= alpha else 0" "" " ScaledTanh(x) - alphaTanh(betax)" "" " HardSigmoid(x) - min(max(alphax + beta, 0), 1)" "" " Elu(x) - x if x >= 0 else alpha*(e^x - 1)" "" " Softsign(x) - x/(1 + |x|)" "" " Softplus(x) - log(1 + e^x)" "" "Equations (Default: f=Tanh):" "" " - Ht = f(Xt*(Wi^T) + Ht-1*(Ri^T) + Wbi + Rbi)" "This operator has optional inputs/outputs. See the doc for more details about the representation of optional arguments. An empty string may be used in the place of an actual argument's name to indicate a missing argument. Trailing optional arguments (those not followed by an argument that is present) may also be simply omitted."

Attributes:

Attribute	MLIR Type	Description
activation_alpha	ArrayAttr	32-bit float array attribute
activation_beta	ArrayAttr	32-bit float array attribute
activations	ArrayAttr	string array attribute
clip	FloatAttr	32-bit float attribute
direction	StringAttr	string attribute
hidden_size	IntegerAttr	64-bit signless integer attribute

Operands:

Operand	Description
X	memref of any type values or tensor of any type values
W	memref of any type values or tensor of any type values
R	memref of any type values or tensor of any type values
B	memref of any type values or tensor of any type values or none type
sequence_lens	memref of any type values or tensor of any type values or none type
initial_h	memref of any type values or tensor of any type values or none type

Results:

Result	Description
Y	memref of any type values or tensor of any type values or none type
Y_h	memref of any type values or tensor of any type values or none type

onnx.RandomNormalLike (ONNXRandomNormalLikeOp)

ONNX RandomNormalLike operation

"Generate a tensor with random values drawn from a normal distribution." "The shape of the output tensor is copied from the shape of the input tensor," "and the parameters of the normal distribution are specified by mean and scale." "" "The data type is specified by the 'dtype' argument, or copied from the input tensor if not provided." "The 'dtype' argument must be one of the data types specified in the 'DataType' enum field in the" "TensorProto message, and be valid as an output type."

Attributes:

Attribute	MLIR Type	Description
dtype	IntegerAttr	64-bit signless integer attribute
mean	FloatAttr	32-bit float attribute
scale	FloatAttr	32-bit float attribute
seed	FloatAttr	32-bit float attribute

Operands:

Operand	Description
input	memref of any type values or tensor of any type values

Results:

Result	Description
output	memref of any type values or tensor of any type values

onnx.RandomNormal (ONNXRandomNormalOp)

ONNX RandomNormal operation

"Generate a tensor with random values drawn from a normal distribution. The shape" "of the tensor is specified by the shape argument and the parameter of the normal distribution" "specified by mean and scale." "" "The data type is specified by the 'dtype' argument. The 'dtype' argument must" "be one of the data types specified in the 'DataType' enum field in the" "TensorProto message."

Attributes:

Attribute	MLIR Type	Description
dtype	IntegerAttr	64-bit signless integer attribute
mean	FloatAttr	32-bit float attribute
scale	FloatAttr	32-bit float attribute
seed	FloatAttr	32-bit float attribute
shape	ArrayAttr	64-bit integer array attribute

Results:

Result	Description
output	memref of any type values or tensor of any type values

onnx.RandomUniformLike (ONNXRandomUniformLikeOp)

ONNX RandomUniformLike operation

"Generate a tensor with random values drawn from a uniform distribution." "The shape of the output tensor is copied from the shape of the input tensor," "and the parameters of the uniform distribution are specified by low and high." "" "The data type is specified by the 'dtype' argument, or copied from the input tensor if not provided." "The 'dtype' argument must be one of the data types specified in the 'DataType' enum field in the" "TensorProto message and be valid as an output type."

Attributes:

Attribute	MLIR Type	Description
dtype	IntegerAttr	64-bit signless integer attribute
high	FloatAttr	32-bit float attribute
low	FloatAttr	32-bit float attribute
seed	FloatAttr	32-bit float attribute

Operands:

Operand	Description
input	memref of any type values or tensor of any type values

Results:

Result	Description
output	memref of any type values or tensor of any type values

onnx.RandomUniform (ONNXRandomUniformOp)

ONNX RandomUniform operation

"Generate a tensor with random values drawn from a uniform distribution. The shape" "of the tensor is specified by the shape argument and the range by low and high." "" "The data type is specified by the 'dtype' argument. The 'dtype' argument must" "be one of the data types specified in the 'DataType' enum field in the" "TensorProto message."

Attributes:

Attribute	MLIR Type	Description
dtype	IntegerAttr	64-bit signless integer attribute
high	FloatAttr	32-bit float attribute
low	FloatAttr	32-bit float attribute
seed	FloatAttr	32-bit float attribute
shape	ArrayAttr	64-bit integer array attribute

Results:

Result	Description
output	memref of any type values or tensor of any type values

onnx.Range (ONNXRangeOp)

ONNX Range operation

"Generate a tensor containing a sequence of numbers that begin at start and extends by increments of delta " "up to limit (exclusive)." "" "The number of elements in the output of range is computed as below-" "" "number_of_elements = max( ceil( (limit - start) / delta ) , 0 )" "" "The pseudocode determining the contents of the output is shown below-" "" "for(int i=0; i<number_of_elements; ++i)" "" "{" " " " output[i] = start + (i * delta); " "" "} " "" "Example 1" "Inputs: start = 3, limit = 9, delta = 3" "Output: [3, 6]" "" "Example 2" "Inputs: start = 10, limit = 4, delta = -2" "Output: [10, 8, 6]" ""

Operands:

Operand	Description
start	memref of any type values or tensor of any type values
limit	memref of any type values or tensor of any type values
delta	memref of any type values or tensor of any type values

Results:

Result	Description
output	memref of any type values or tensor of any type values

onnx.Reciprocal (ONNXReciprocalOp)

ONNX Reciprocal operation

"Reciprocal takes one input data (Tensor) and produces one output data" "(Tensor) where the reciprocal is, y = 1/x, is applied to" "the tensor elementwise."

Operands:

Operand	Description
X	memref of any type values or tensor of any type values

Results:

Result	Description
Y	memref of any type values or tensor of any type values

onnx.ReduceL1 (ONNXReduceL1Op)

ONNX ReduceL1 operation

"Computes the L1 norm of the input tensor's element along the provided axes. The resulted" "tensor has the same rank as the input if keepdims equal 1. If keepdims equal 0, then" "the resulted tensor have the reduced dimension pruned." "" "The above behavior is similar to numpy, with the exception that numpy default keepdims to" "False instead of True."

Attributes:

Attribute	MLIR Type	Description
axes	ArrayAttr	64-bit integer array attribute
keepdims	IntegerAttr	64-bit signless integer attribute

Operands:

Operand	Description
data	memref of any type values or tensor of any type values

Results:

Result	Description
reduced	memref of any type values or tensor of any type values

onnx.ReduceL2 (ONNXReduceL2Op)

ONNX ReduceL2 operation

"Computes the L2 norm of the input tensor's element along the provided axes. The resulted" "tensor has the same rank as the input if keepdims equal 1. If keepdims equal 0, then" "the resulted tensor have the reduced dimension pruned." "" "The above behavior is similar to numpy, with the exception that numpy default keepdims to" "False instead of True."

Attributes:

Attribute	MLIR Type	Description
axes	ArrayAttr	64-bit integer array attribute
keepdims	IntegerAttr	64-bit signless integer attribute

Operands:

Operand	Description
data	memref of any type values or tensor of any type values

Results:

Result	Description
reduced	memref of any type values or tensor of any type values

onnx.ReduceLogSumExp (ONNXReduceLogSumExpOp)

ONNX ReduceLogSumExp operation

"Computes the log sum exponent of the input tensor's element along the provided axes. The resulted" "tensor has the same rank as the input if keepdims equal 1. If keepdims equal 0, then" "the resulted tensor have the reduced dimension pruned." "" "The above behavior is similar to numpy, with the exception that numpy default keepdims to" "False instead of True."

Attributes:

Attribute	MLIR Type	Description
axes	ArrayAttr	64-bit integer array attribute
keepdims	IntegerAttr	64-bit signless integer attribute

Operands:

Operand	Description
data	memref of any type values or tensor of any type values

Results:

Result	Description
reduced	memref of any type values or tensor of any type values

onnx.ReduceLogSum (ONNXReduceLogSumOp)

ONNX ReduceLogSum operation

"Computes the log sum of the input tensor's element along the provided axes. The resulted" "tensor has the same rank as the input if keepdims equal 1. If keepdims equal 0, then" "the resulted tensor have the reduced dimension pruned." "" "The above behavior is similar to numpy, with the exception that numpy default keepdims to" "False instead of True."

Attributes:

Attribute	MLIR Type	Description
axes	ArrayAttr	64-bit integer array attribute
keepdims	IntegerAttr	64-bit signless integer attribute

Operands:

Operand	Description
data	memref of any type values or tensor of any type values

Results:

Result	Description
reduced	memref of any type values or tensor of any type values

onnx.ReduceMax (ONNXReduceMaxOp)

ONNX ReduceMax operation

"Computes the max of the input tensor's element along the provided axes. The resulted" "tensor has the same rank as the input if keepdims equal 1. If keepdims equal 0, then" "the resulted tensor have the reduced dimension pruned." "" "The above behavior is similar to numpy, with the exception that numpy default keepdims to" "False instead of True."

Attributes:

Attribute	MLIR Type	Description
axes	ArrayAttr	64-bit integer array attribute
keepdims	IntegerAttr	64-bit signless integer attribute

Operands:

Operand	Description
data	memref of any type values or tensor of any type values

Results:

Result	Description
reduced	memref of any type values or tensor of any type values

onnx.ReduceMean (ONNXReduceMeanOp)

ONNX ReduceMean operation

"Computes the mean of the input tensor's element along the provided axes. The resulted" "tensor has the same rank as the input if keepdims equal 1. If keepdims equal 0, then" "the resulted tensor have the reduced dimension pruned." "" "The above behavior is similar to numpy, with the exception that numpy default keepdims to" "False instead of True."

Attributes:

Attribute	MLIR Type	Description
axes	ArrayAttr	64-bit integer array attribute
keepdims	IntegerAttr	64-bit signless integer attribute

Operands:

Operand	Description
data	memref of any type values or tensor of any type values

Results:

Result	Description
reduced	memref of any type values or tensor of any type values

onnx.ReduceMin (ONNXReduceMinOp)

ONNX ReduceMin operation

"Computes the min of the input tensor's element along the provided axes. The resulted" "tensor has the same rank as the input if keepdims equal 1. If keepdims equal 0, then" "the resulted tensor have the reduced dimension pruned." "" "The above behavior is similar to numpy, with the exception that numpy default keepdims to" "False instead of True."

Attributes:

Attribute	MLIR Type	Description
axes	ArrayAttr	64-bit integer array attribute
keepdims	IntegerAttr	64-bit signless integer attribute

Operands:

Operand	Description
data	memref of any type values or tensor of any type values

Results:

Result	Description
reduced	memref of any type values or tensor of any type values

onnx.ReduceProd (ONNXReduceProdOp)

ONNX ReduceProd operation

"Computes the product of the input tensor's element along the provided axes. The resulted" "tensor has the same rank as the input if keepdims equal 1. If keepdims equal 0, then" "the resulted tensor have the reduced dimension pruned." "" "The above behavior is similar to numpy, with the exception that numpy default keepdims to" "False instead of True."

Attributes:

Attribute	MLIR Type	Description
axes	ArrayAttr	64-bit integer array attribute
keepdims	IntegerAttr	64-bit signless integer attribute

Operands:

Operand	Description
data	memref of any type values or tensor of any type values

Results:

Result	Description
reduced	memref of any type values or tensor of any type values

onnx.ReduceSum (ONNXReduceSumOp)

ONNX ReduceSum operation

"Computes the sum of the input tensor's element along the provided axes. The resulted" "tensor has the same rank as the input if keepdims equal 1. If keepdims equal 0, then" "the resulted tensor have the reduced dimension pruned." "" "The above behavior is similar to numpy, with the exception that numpy default keepdims to" "False instead of True."

Attributes:

Attribute	MLIR Type	Description
axes	ArrayAttr	64-bit integer array attribute
keepdims	IntegerAttr	64-bit signless integer attribute

Operands:

Operand	Description
data	memref of any type values or tensor of any type values

Results:

Result	Description
reduced	memref of any type values or tensor of any type values

onnx.ReduceSumSquare (ONNXReduceSumSquareOp)

ONNX ReduceSumSquare operation

"Computes the sum square of the input tensor's element along the provided axes. The resulted" "tensor has the same rank as the input if keepdims equal 1. If keepdims equal 0, then" "the resulted tensor have the reduced dimension pruned." "" "The above behavior is similar to numpy, with the exception that numpy default keepdims to" "False instead of True."

Attributes:

Attribute	MLIR Type	Description
axes	ArrayAttr	64-bit integer array attribute
keepdims	IntegerAttr	64-bit signless integer attribute

Operands:

Operand	Description
data	memref of any type values or tensor of any type values

Results:

Result	Description
reduced	memref of any type values or tensor of any type values

onnx.Relu (ONNXReluOp)

ONNX Relu operation

"Relu takes one input data (Tensor) and produces one output data" "(Tensor) where the rectified linear function, y = max(0, x), is applied to" "the tensor elementwise."

Operands:

Operand	Description
X	memref of any type values or tensor of any type values

Results:

Result	Description
Y	memref of any type values or tensor of any type values

onnx.Reshape (ONNXReshapeOp)

ONNX Reshape operation

"Reshape the input tensor similar to numpy.reshape." "First input is the data tensor, second input is a shape tensor which specifies the output shape. It outputs the reshaped tensor." "At most one dimension of the new shape can be -1. In this case, the value is" "inferred from the size of the tensor and the remaining dimensions. A dimension" "could also be 0, in which case the actual dimension value is unchanged (i.e. taken" "from the input tensor)."

Operands:

Operand	Description
data	memref of any type values or tensor of any type values
shape	memref of any type values or tensor of any type values or none type

Results:

Result	Description
reshaped	memref of any type values or tensor of any type values

onnx.Resize (ONNXResizeOp)

ONNX Resize operation

"Resize the input tensor. In general, it calculates every value in the output tensor as a weighted average of neighborhood (a.k.a. sampling locations) in the input tensor." "Each dimension value of the output tensor is:" " output_dimension = floor(input_dimension * (roi_end - roi_start) * scale) if input \"sizes\" is not specified."

Attributes:

Attribute	MLIR Type	Description
coordinate_transformation_mode	StringAttr	string attribute
cubic_coeff_a	FloatAttr	32-bit float attribute
exclude_outside	IntegerAttr	64-bit signless integer attribute
extrapolation_value	FloatAttr	32-bit float attribute
mode	StringAttr	string attribute
nearest_mode	StringAttr	string attribute

Operands:

Operand	Description
X	memref of any type values or tensor of any type values
roi	memref of any type values or tensor of any type values
scales	memref of any type values or tensor of any type values
sizes	memref of any type values or tensor of any type values or none type

Results:

Result	Description
Y	memref of any type values or tensor of any type values

onnx.ReverseSequence (ONNXReverseSequenceOp)

ONNX ReverseSequence operation

"Reverse batch of sequences having different lengths specified by sequence_lens." "" "For each slice i iterating on batch axis, the operator reverses the first sequence_lens[i] elements on time axis," "and copies elements whose index's beyond sequence_lens[i] to the output. So the output slice i contains reversed" "sequences on the first sequence_lens[i] elements, then have original values copied for the other elements." "" "Example 1:" " input = [[0.0, 4.0, 8.0, 12.0]," " [1.0, 5.0, 9.0, 13.0]," " [2.0, 6.0, 10.0, 14.0]," " [3.0, 7.0, 11.0, 15.0]]" " sequence_lens = [4, 3, 2, 1]" " time_axis = 0" " batch_axis = 1" "" " output = [[3.0, 6.0, 9.0, 12.0]," " [2.0, 5.0, 8.0, 13.0]," " [1.0, 4.0, 10.0, 14.0]," " [0.0, 7.0, 11.0, 15.0]]" "" "Example 2:" " input = [[0.0, 1.0, 2.0, 3.0 ]," " [4.0, 5.0, 6.0, 7.0 ]," " [8.0, 9.0, 10.0, 11.0]," " [12.0, 13.0, 14.0, 15.0]]" " sequence_lens = [1, 2, 3, 4]" " time_axis = 1" " batch_axis = 0" "" " output = [[0.0, 1.0, 2.0, 3.0 ]," " [5.0, 4.0, 6.0, 7.0 ]," " [10.0, 9.0, 8.0, 11.0]," " [15.0, 14.0, 13.0, 12.0]]"

Attributes:

Attribute	MLIR Type	Description
batch_axis	IntegerAttr	64-bit signless integer attribute
time_axis	IntegerAttr	64-bit signless integer attribute

Operands:

Operand	Description
input	memref of any type values or tensor of any type values
sequence_lens	memref of any type values or tensor of any type values

Results:

Result	Description
Y	memref of any type values or tensor of any type values

onnx.RoiAlign (ONNXRoiAlignOp)

ONNX RoiAlign operation

"Region of Interest (RoI) align operation described in the" "Mask R-CNN paper." "RoiAlign consumes an input tensor X and region of interests (rois)" "to apply pooling across each RoI; it produces a 4-D tensor of shape" "(num_rois, C, output_height, output_width)." "" "RoiAlign is proposed to avoid the misalignment by removing" "quantizations while converting from original image into feature" "map and from feature map into RoI feature; in each ROI bin," "the value of the sampled locations are computed directly" "through bilinear interpolation."

Attributes:

Attribute	MLIR Type	Description
mode	StringAttr	string attribute
output_height	IntegerAttr	64-bit signless integer attribute
output_width	IntegerAttr	64-bit signless integer attribute
sampling_ratio	IntegerAttr	64-bit signless integer attribute
spatial_scale	FloatAttr	32-bit float attribute

Operands:

Operand	Description
X	memref of any type values or tensor of any type values
rois	memref of any type values or tensor of any type values
batch_indices	memref of any type values or tensor of any type values

Results:

Result	Description
Y	memref of any type values or tensor of any type values

onnx.Round (ONNXRoundOp)

ONNX Round operation

"Round takes one input Tensor and rounds the values, element-wise, meaning" "it finds the nearest integer for each value." "In case of halfs, the rule is to round them to the nearest even integer." "The output tensor has the same shape and type as the input." "" "Examples:" "" "round([0.9]) = [1.0]" "round([2.5]) = [2.0]" "round([2.3]) = [2.0]" "round([1.5]) = [2.0]" "round([-4.5]) = [-4.0]" ""

Operands:

Operand	Description
X	memref of any type values or tensor of any type values

Results:

Result	Description
Y	memref of any type values or tensor of any type values

onnx.Scan (ONNXScanOp)

ONNX Scan operation

"Scan can be used to iterate over one or more scan_input tensors," "constructing zero or more scan_output tensors. It combines ideas from general recurrences," "functional programming constructs such as scan, fold, map, and zip and is intended to enable" "generalizations of RNN-like constructs for sequence-to-sequence processing." "Other tensors (referred to as state_variables here) can be used to carry a state" "when iterating from one element to another (similar to hidden-state in RNNs, also referred" "to as loop-carried dependences in the context of loops)." "Many common usages involve a single scan_input tensor (where functionality" "similar to scan, fold and map can be obtained). When more than one scan_input is used," "a behavior similar to zip is obtained." "" "The attribute body must be a graph, specifying the computation to be performed in" "every iteration. It takes as input the current values of the state_variables and" "the current iterated element of the scan_inputs. It must return the (updated) values" "of the state_variables and zero or more scan_output_element tensors. The values of the" "scan_output_element tensors are concatenated over all the iterations to produce the" "scan_output values of the scan construct (similar to the concatenated intermediate" "hidden-state values of RNN-like constructs). All the output tensors (state_variables as" "well as scan_output_element tensors) are required to have the same shape in each iteration" "of the loop (a restriction imposed to enable efficient memory allocation)." "" "Note that the iterated element passed to the body subgraph does not have a sequence" "axis. It will have a rank one less than the rank of the corresponding scan_input." "" "The scan operation returns the final values of the state_variables as well as the" "scan_outputs." "" "The optional attribute scan_input_directions specifies the direction (forward or backward)" "for each scan input. If this attribute is omitted, all sequences are scanned in the forward" "direction. A bidirectional scan may be performed by specifying the same tensor input twice" "in the scan_inputs, once with a forward direction, and once with a backward direction." "" "The scan_output of the operation is produced by concatenating the scan_output_element" "values produced by the body in each iteration. The optional attribute scan_output_directions" "specifies the direction in which scan_output is constructed (by appending or prepending the" "scan_output_element to scan_output in each iteration) for each scan_output. If this attribute" "is omitted, the scan_output_element is appended to the scan_output in each iteration." "" "The optional attribute scan_input_axes specifies the axis to be scanned for each scan_input." "If omitted, every scan_input will be scanned in axis 0. For example, if axis 0 is the" "batch axis and axis 1 is the time axis (to be scanned), specify an axis value of 1." "Note that scanning a non-zero axis may be less efficient than scanning axis zero." "" "The optional attribute scan_output_axes specifies the axis along which the scan_outputs" "are accumulated for each scan_output. For example, if axis 1 is the time axis (to be" "scanned) for both inputs and outputs, specify a scan_input axis and scan_output axis" "value of 1." "" "Note that because of the ONNX restriction that only the last parameter of an operator can" "be variadic, the initial-states and scan-inputs are listed together as one input parameter." "Similarly, the final-states and scan-outputs are listed together as one output parameter." "The attribute num_scan_inputs indicates the number M of scan-inputs." "" "The behavior of" "" " Scan <" " num_scan_inputs = m," " body = loop-body," " scan_input_axes = [axis_1, ..., axis_m]" " > (init_1, ..., init_n, scan_1, ..., scan_m)" "" "is equivalent to the following pseudo-code:" "" " // scan_i.shape[axis_i] denotes the (max) sequence-length of scan_i" " // scan_i.shape[axis_i] is required to be equal to scan_j.shape[axis_j] for all i,j." " sequence_length = scan_1.shape[axis_1];" "" " // initialize state-variables" " st_1 = init_1; ... st_n = init_n;" " // initialize scan-output variables: [] denotes an empty tensor" " scan_out_1 = []; ...; scan_out_k = [];" " // identify number of iterations:" "" " // execute loop" " for (int t = 0; t < sequence_length; ++t) {" " // generate the scan-input elements: the notation T<axis=k>[t] indicates the sub-tensor" " // of rank one less than T obtained by indexing T at position t along axis k." " si_1 = scan_1<axis=axis_1>[t];" " ... ;" " si_m = scan_m<axis=axis_m>[t];" " // execute loop-body" " st_1, ..., st_n, so_1, ..., so_k = loop-body(st_1, ..., st_n, si_1, ..., si_m)" " // accumulate the scan-output elements" " scan_out_1 = Concat<axis=0>(scan_out_1, so_1); ... ; scan_out_k = Concat<axis=0>(scan_out_k, so_k);" " }" "" " return st_1, ..., st_n, scan_out_1, ..., scan_out_k;" "" "Sample usage: Encoding RNN using a Scan" "" "The following example shows how a simple RNN over an input tensor %X, with weight tensor %Wi," "recurrence weight tensor %Ri, bias tensors %Wbi and %Rbi, and initial hidden-state %H_0 can" "be encoded as a ScanLoop. Note that the loop-body is a nested graph, and it directly computes" "%Wi, %Ri, %Wbi, and %Rbi (typically constants or initializers in the body graph). If these" "values are computed in the outer graph, they need to be passed in as extra state_variables." "" " graph rnn-encoding {" " %H_0 = ... " " %X = ..." " %Y_h, %Y = Scan[body = , num_scan_inputs=1](%H_0, %X)" " return %Y, %Y_h" " }" "" " graph rnn-cell-1 (" " %H_tminus1[FLOAT, tensor]" " %X_t[FLOAT, tensor]" " ) {" " %Wi = ..." " %Ri = ..." " %Wbi = ..." " %Rbi = ..." " %t1 = X_t * (Wi^T)" " %t2 = H_tminus1*(Ri^T)" " %t3 = Add(%t1, %t2)" " %t4 = Add(%t3, %Wbi)" " %t5 = Add(%t4, %Rbi)" " %Ht = Tanh(%t5)" " %Accumulate = Identity(%Ht)" " return %Ht, %Accumulate" " }" ""

Attributes:

Attribute	MLIR Type	Description
body	Attribute	any attribute
num_scan_inputs	IntegerAttr	64-bit signless integer attribute
scan_input_axes	ArrayAttr	64-bit integer array attribute
scan_input_directions	ArrayAttr	64-bit integer array attribute
scan_output_axes	ArrayAttr	64-bit integer array attribute
scan_output_directions	ArrayAttr	64-bit integer array attribute

Operands:

Operand	Description
initial_state_and_scan_inputs	memref of any type values or tensor of any type values

Results:

Result	Description
final_state_and_scan_outputs	memref of any type values or tensor of any type values

onnx.ScatterElements (ONNXScatterElementsOp)

ONNX ScatterElements operation

"ScatterElements takes three inputs data, updates, and indices of the same" "rank r >= 1 and an optional attribute axis that identifies an axis of data" "(by default, the outer-most axis, that is axis 0). The output of the operation" "is produced by creating a copy of the input data, and then updating its value" "to values specified by updates at specific index positions specified by" "indices. Its output shape is the same as the shape of data." "" "For each entry in updates, the target index in data is obtained by combining" "the corresponding entry in indices with the index of the entry itself: the" "index-value for dimension = axis is obtained from the value of the corresponding" "entry in indices and the index-value for dimension != axis is obtained from the" "index of the entry itself." "" "For instance, in a 2-D tensor case, the update corresponding to the [i][j] entry" "is performed as below:" "" " output[indices[i][j]][j] = updates[i][j] if axis = 0, " " output[i][indices[i][j]] = updates[i][j] if axis = 1," "" "" "This operator is the inverse of GatherElements. It is similar to Torch's Scatter operation." "" "Example 1:" "" " data = [" " [0.0, 0.0, 0.0]," " [0.0, 0.0, 0.0]," " [0.0, 0.0, 0.0]," " ]" " indices = [" " [1, 0, 2]," " [0, 2, 1]," " ]" " updates = [" " [1.0, 1.1, 1.2]," " [2.0, 2.1, 2.2]," " ]" " output = [" " [2.0, 1.1, 0.0]" " [1.0, 0.0, 2.2]" " [0.0, 2.1, 1.2]" " ]" "" "Example 2:" "" " data = [[1.0, 2.0, 3.0, 4.0, 5.0]]" " indices = [[1, 3]]" " updates = [[1.1, 2.1]]" " axis = 1" " output = [[1.0, 1.1, 3.0, 2.1, 5.0]]" ""

Attributes:

Attribute	MLIR Type	Description
axis	IntegerAttr	64-bit signless integer attribute

Operands:

Operand	Description
data	memref of any type values or tensor of any type values
indices	memref of any type values or tensor of any type values
updates	memref of any type values or tensor of any type values

Results:

Result	Description
output	memref of any type values or tensor of any type values

onnx.ScatterND (ONNXScatterNDOp)

ONNX ScatterND operation

"ScatterND takes three inputs data tensor of rank r >= 1, indices tensor of rank q >= 1," "and updates tensor of rank q + r - indices.shape[-1] - 1. The output of the operation" "is produced by creating a copy of the input data, and then updating its value to values" "specified by updates at specific index positions specified by indices. Its output shape" "is the same as the shape of data. Note that indices should not have duplicate entries." "That is, two or more updates for the same index-location is not supported." "" "indices is an integer tensor. Let k denote indices.shape[-1], the last dimension in the shape of indices." " indices is treated as a (q-1)-dimensional tensor of k-tuples, where each k-tuple is a partial-index into data." "Hence, k can be a value at most the rank of data. When k equals rank(data), each update entry specifies an" "update to a single element of the tensor. When k is less than rank(data) each update entry specifies an" "update to a slice of the tensor." "" "updates is treated as a (q-1)-dimensional tensor of replacement-slice-values. Thus, the" "first (q-1) dimensions of updates.shape must match the first (q-1) dimensions of indices.shape." "The remaining dimensions of updates correspond to the dimensions of the" "replacement-slice-values. Each replacement-slice-value is a (r-k) dimensional tensor," "corresponding to the trailing (r-k) dimensions of data. Thus, the shape of updates" "must equal indices.shape[0:q-1] ++ data.shape[k:r-1], where ++ denotes the concatenation" "of shapes." "" "The output is calculated via the following equation:" "" " output = np.copy(data)" " update_indices = indices.shape[:-1]" " for idx in np.ndindex(update_indices):" " output[indices[idx]] = updates[idx]" "" "The order of iteration in the above loop is not specified." "In particular, indices should not have duplicate entries: that is, if idx1 != idx2, then indices[idx1] != indices[idx2]." "This ensures that the output value does not depend on the iteration order." "" "This operator is the inverse of GatherND." "" "Example 1:" "" " data = [1, 2, 3, 4, 5, 6, 7, 8]" " indices = [[4], [3], [1], [7]]" " updates = [9, 10, 11, 12]" " output = [1, 11, 3, 10, 9, 6, 7, 12]" "" "" "Example 2:" "" " data = [[[1, 2, 3, 4], [5, 6, 7, 8], [8, 7, 6, 5], [4, 3, 2, 1]]," " [[1, 2, 3, 4], [5, 6, 7, 8], [8, 7, 6, 5], [4, 3, 2, 1]]," " [[8, 7, 6, 5], [4, 3, 2, 1], [1, 2, 3, 4], [5, 6, 7, 8]]," " [[8, 7, 6, 5], [4, 3, 2, 1], [1, 2, 3, 4], [5, 6, 7, 8]]]" " indices = [[0], [2]]" " updates = [[[5, 5, 5, 5], [6, 6, 6, 6], [7, 7, 7, 7], [8, 8, 8, 8]]," " [[1, 1, 1, 1], [2, 2, 2, 2], [3, 3, 3, 3], [4, 4, 4, 4]]]" " output = [[[5, 5, 5, 5], [6, 6, 6, 6], [7, 7, 7, 7], [8, 8, 8, 8]]," " [[1, 2, 3, 4], [5, 6, 7, 8], [8, 7, 6, 5], [4, 3, 2, 1]]," " [[1, 1, 1, 1], [2, 2, 2, 2], [3, 3, 3, 3], [4, 4, 4, 4]]," " [[8, 7, 6, 5], [4, 3, 2, 1], [1, 2, 3, 4], [5, 6, 7, 8]]]" ""

Operands:

Operand	Description
data	memref of any type values or tensor of any type values
indices	memref of any type values or tensor of any type values
updates	memref of any type values or tensor of any type values

Results:

Result	Description
output	memref of any type values or tensor of any type values

onnx.Scatter (ONNXScatterOp)

ONNX Scatter operation

"This operator is deprecated. Please use ScatterElements, which provides the same functionality." "" "Scatter takes three inputs data, updates, and indices of the same" "rank r >= 1 and an optional attribute axis that identifies an axis of data" "(by default, the outer-most axis, that is axis 0). The output of the operation" "is produced by creating a copy of the input data, and then updating its value" "to values specified by updates at specific index positions specified by" "indices. Its output shape is the same as the shape of data." "" "For each entry in updates, the target index in data is obtained by combining" "the corresponding entry in indices with the index of the entry itself: the" "index-value for dimension = axis is obtained from the value of the corresponding" "entry in indices and the index-value for dimension != axis is obtained from the" "index of the entry itself." "" "For instance, in a 2-D tensor case, the update corresponding to the [i][j] entry" "is performed as below:" "" " output[indices[i][j]][j] = updates[i][j] if axis = 0, " " output[i][indices[i][j]] = updates[i][j] if axis = 1," "" "" "This operator is the inverse of GatherElements. It is similar to Torch's Scatter operation." "" "Example 1:" "" " data = [" " [0.0, 0.0, 0.0]," " [0.0, 0.0, 0.0]," " [0.0, 0.0, 0.0]," " ]" " indices = [" " [1, 0, 2]," " [0, 2, 1]," " ]" " updates = [" " [1.0, 1.1, 1.2]," " [2.0, 2.1, 2.2]," " ]" " output = [" " [2.0, 1.1, 0.0]" " [1.0, 0.0, 2.2]" " [0.0, 2.1, 1.2]" " ]" "" "Example 2:" "" " data = [[1.0, 2.0, 3.0, 4.0, 5.0]]" " indices = [[1, 3]]" " updates = [[1.1, 2.1]]" " axis = 1" " output = [[1.0, 1.1, 3.0, 2.1, 5.0]]" ""

Attributes:

Attribute	MLIR Type	Description
axis	IntegerAttr	64-bit signless integer attribute

Operands:

Operand	Description
data	memref of any type values or tensor of any type values
indices	memref of any type values or tensor of any type values
updates	memref of any type values or tensor of any type values

Results:

Result	Description
output	memref of any type values or tensor of any type values

onnx.Selu (ONNXSeluOp)

ONNX Selu operation

"Selu takes one input data (Tensor) and produces one output data" "(Tensor) where the scaled exponential linear unit function," "y = gamma * (alpha * e^x - alpha) for x <= 0, y = gamma * x for x > 0," "is applied to the tensor elementwise."

Attributes:

Attribute	MLIR Type	Description
alpha	FloatAttr	32-bit float attribute
gamma	FloatAttr	32-bit float attribute

Operands:

Operand	Description
X	memref of any type values or tensor of any type values

Results:

Result	Description
Y	memref of any type values or tensor of any type values

onnx.SequenceAt (ONNXSequenceAtOp)

ONNX SequenceAt operation

"Outputs a tensor copy from the tensor at 'position' in 'input_sequence'." "Accepted range for 'position' is in [-n, n - 1], where n is the number of tensors in 'input_sequence'." "Negative value means counting positions from the back."

Operands:

Operand	Description
input_sequence	memref of any type values or tensor of any type values
position	memref of any type values or tensor of any type values

Results:

Result	Description
tensor	memref of any type values or tensor of any type values

onnx.SequenceConstruct (ONNXSequenceConstructOp)

ONNX SequenceConstruct operation

"Construct a tensor sequence containing 'inputs' tensors." "All tensors in 'inputs' must have the same data type."

Operands:

Operand	Description
inputs	memref of any type values or tensor of any type values

Results:

Result	Description
output_sequence	memref of any type values or tensor of any type values

onnx.SequenceEmpty (ONNXSequenceEmptyOp)

ONNX SequenceEmpty operation

"Construct an empty tensor sequence, with given data type."

Attributes:

Attribute	MLIR Type	Description
dtype	IntegerAttr	64-bit signless integer attribute

Results:

Result	Description
output	memref of any type values or tensor of any type values

onnx.SequenceErase (ONNXSequenceEraseOp)

ONNX SequenceErase operation

"Outputs a tensor sequence that removes the tensor at 'position' from 'input_sequence'." "Accepted range for 'position' is in [-n, n - 1], where n is the number of tensors in 'input_sequence'." "Negative value means counting positions from the back." "'position' is optional, by default it erases the last tensor from 'input_sequence'."

Operands:

Operand	Description
input_sequence	memref of any type values or tensor of any type values
position	memref of any type values or tensor of any type values or none type

Results:

Result	Description
output_sequence	memref of any type values or tensor of any type values

onnx.SequenceInsert (ONNXSequenceInsertOp)

ONNX SequenceInsert operation

"Outputs a tensor sequence that inserts 'tensor' into 'input_sequence' at 'position'." "'tensor' must have the same data type as 'input_sequence'." "Accepted range for 'position' is in [-n, n], where n is the number of tensors in 'input_sequence'." "Negative value means counting positions from the back." "'position' is optional, by default it inserts 'tensor' to the back of 'input_sequence'."

Operands:

Operand	Description
input_sequence	memref of any type values or tensor of any type values
tensor	memref of any type values or tensor of any type values
position	memref of any type values or tensor of any type values or none type

Results:

Result	Description
output_sequence	memref of any type values or tensor of any type values

onnx.SequenceLength (ONNXSequenceLengthOp)

ONNX SequenceLength operation

"Produces a scalar(tensor of empty shape) containing the number of tensors in 'input_sequence'."

Operands:

Operand	Description
input_sequence	memref of any type values or tensor of any type values

Results:

Result	Description
length	memref of any type values or tensor of any type values

onnx.Shape (ONNXShapeOp)

ONNX Shape operation

"Takes a tensor as input and outputs an 1D int64 tensor containing the shape of the input tensor."

Operands:

Operand	Description
data	memref of any type values or tensor of any type values

Results:

Result	Description
shape	memref of any type values or tensor of any type values

onnx.Shrink (ONNXShrinkOp)

ONNX Shrink operation

"Shrink takes one input data (Tensor) and produces one Tensor output," "having same datatype and shape with input. It has two attributes, lambd and" "bias. The formula of this operator is: If x < -lambd, y = x + bias;" "If x > lambd, y = x - bias; Otherwise, y = 0."

Attributes:

Attribute	MLIR Type	Description
bias	FloatAttr	32-bit float attribute
lambd	FloatAttr	32-bit float attribute

Operands:

Operand	Description
input	memref of any type values or tensor of any type values

Results:

Result	Description
output	memref of any type values or tensor of any type values

onnx.Sigmoid (ONNXSigmoidOp)

ONNX Sigmoid operation

"Sigmoid takes one input data (Tensor) and produces one output data" "(Tensor) where the sigmoid function, y = 1 / (1 + exp(-x)), is applied to the" "tensor elementwise."

Operands:

Operand	Description
X	memref of any type values or tensor of any type values

Results:

Result	Description
Y	memref of any type values or tensor of any type values

onnx.Sign (ONNXSignOp)

ONNX Sign operation

"Calculate the sign of the given input tensor element-wise." "If input > 0, output 1. if input < 0, output -1. if input == 0, output 0."

Operands:

Operand	Description
input	memref of any type values or tensor of any type values

Results:

Result	Description
output	memref of any type values or tensor of any type values

onnx.Sin (ONNXSinOp)

ONNX Sin operation

"Calculates the sine of the given input tensor, element-wise."

Operands:

Operand	Description
input	memref of any type values or tensor of any type values

Results:

Result	Description
output	memref of any type values or tensor of any type values

onnx.Sinh (ONNXSinhOp)

ONNX Sinh operation

"Calculates the hyperbolic sine of the given input tensor element-wise."

Operands:

Operand	Description
input	memref of any type values or tensor of any type values

Results:

Result	Description
output	memref of any type values or tensor of any type values

onnx.Size (ONNXSizeOp)

ONNX Size operation

"Takes a tensor as input and outputs a int64 scalar that equals to the total number of elements of the input tensor."

Operands:

Operand	Description
data	memref of any type values or tensor of any type values

Results:

Result	Description
size	memref of any type values or tensor of any type values

onnx.Slice (ONNXSliceOp)

ONNX Slice operation

"Produces a slice of the input tensor along multiple axes. Similar to numpy:" "https://docs.scipy.org/doc/numpy/reference/arrays.indexing.html" "Slices uses starts, ends, axes and steps inputs to specify the start and end" "dimension and step for each axis in the list of axes, it uses this information to" "slice the input data tensor. If a negative value is passed for any of the" "start or end indices, it represent number of elements before the end of that" "dimension. If the value passed to start or end is larger than the n (the" "number of elements in this dimension), it represents n. For slicing to the" "end of a dimension with unknown size, it is recommended to pass in INT_MAX." "If a negative value is passed for step, it represents slicing backward." "If axes are omitted, they are set to [0, ..., ndim-1]." "If steps are omitted, they are set to [1, ..., 1] of length len(starts)" "Example 1:" " data = [" " [1, 2, 3, 4]," " [5, 6, 7, 8]," " ]" " axes = [0, 1]" " starts = [1, 0]" " ends = [2, 3]" " steps = [1, 2]" " result = [" " [5, 7]," " ]" "Example 2:" " data = [" " [1, 2, 3, 4]," " [5, 6, 7, 8]," " ]" " starts = [0, 1]" " ends = [-1, 1000]" " result = [" " [2, 3, 4]," " ]"

Operands:

Operand	Description
data	memref of any type values or tensor of any type values
starts	memref of any type values or tensor of any type values
ends	memref of any type values or tensor of any type values
axes	memref of any type values or tensor of any type values or none type
steps	memref of any type values or tensor of any type values or none type

Results:

Result	Description
output	memref of any type values or tensor of any type values

onnx.Softmax (ONNXSoftmaxOp)

ONNX Softmax operation

"The operator computes the softmax (normalized exponential) values for each layer in the batch" " of the given input." "" "The input does not need to explicitly be a 2D vector; rather, it will be" "coerced into one. For an arbitrary n-dimensional tensor" "input \in [a_0, a_1, ..., a_{k-1}, a_k, ..., a_{n-1}] and k is" "the axis provided, then input will be coerced into a 2-dimensional tensor with" "dimensions [a_0 * ... * a_{k-1}, a_k * ... * a_{n-1}]. For the default" "case where axis=1, this means the input tensor will be coerced into a 2D tensor" "of dimensions [a_0, a_1 * ... * a_{n-1}], where a_0 is often the batch size." "In this situation, we must have a_0 = N and a_1 * ... * a_{n-1} = D." "Each of these dimensions must be matched correctly, or else the operator" "will throw errors. The output tensor has the same shape" "and contains the softmax values of the corresponding input."

Attributes:

Attribute	MLIR Type	Description
axis	IntegerAttr	64-bit signless integer attribute

Operands:

Operand	Description
input	memref of any type values or tensor of any type values

Results:

Result	Description
output	memref of any type values or tensor of any type values

onnx.Softplus (ONNXSoftplusOp)

ONNX Softplus operation

"Softplus takes one input data (Tensor) and produces one output data" "(Tensor) where the softplus function, y = ln(exp(x) + 1), is applied to" "the tensor elementwise."

Operands:

Operand	Description
X	memref of any type values or tensor of any type values

Results:

Result	Description
Y	memref of any type values or tensor of any type values

onnx.Softsign (ONNXSoftsignOp)

ONNX Softsign operation

"Calculates the softsign (x/(1+|x|)) of the given input tensor element-wise."

Operands:

Operand	Description
input	memref of any type values or tensor of any type values

Results:

Result	Description
output	memref of any type values or tensor of any type values

onnx.SpaceToDepth (ONNXSpaceToDepthOp)

ONNX SpaceToDepth operation

"SpaceToDepth rearranges blocks of spatial data into depth. More specifically," "this op outputs a copy of the input tensor where values from the height and width dimensions" "are moved to the depth dimension."

Attributes:

Attribute	MLIR Type	Description
blocksize	IntegerAttr	64-bit signless integer attribute

Operands:

Operand	Description
input	memref of any type values or tensor of any type values

Results:

Result	Description
output	memref of any type values or tensor of any type values

onnx.Split (ONNXSplitOp)

ONNX Split operation

"Split a tensor into a list of tensors, along the specified" "'axis'. Lengths of the parts can be specified using argument 'split'." "Otherwise, the tensor is split to equal sized parts."

Attributes:

Attribute	MLIR Type	Description
axis	IntegerAttr	64-bit signless integer attribute
split	ArrayAttr	64-bit integer array attribute

Operands:

Operand	Description
input	memref of any type values or tensor of any type values

Results:

Result	Description
outputs	memref of any type values or tensor of any type values

onnx.SplitToSequence (ONNXSplitToSequenceOp)

ONNX SplitToSequence operation

"Split a tensor into a sequence of tensors, along the specified" "'axis'. Lengths of the parts can be specified using argument 'split'." "'split' must contain only positive numbers." "'split' is either a scalar (tensor of empty shape), or a 1-D tensor." "If 'split' is a scalar, then 'input' will be split into equally sized chunks(if possible)." "Last chunk will be smaller if the 'input' size along the given axis 'axis' is not divisible" "by 'split'." "Otherwise, the tensor is split into 'size(split)' chunks, with lengths of the parts on 'axis'" "specified in 'split'. In this scenario, the sum of entries in 'split' must be equal to the" "dimension size of input tensor on 'axis'."

Attributes:

Attribute	MLIR Type	Description
axis	IntegerAttr	64-bit signless integer attribute
keepdims	IntegerAttr	64-bit signless integer attribute

Operands:

Operand	Description
input	memref of any type values or tensor of any type values
split	memref of any type values or tensor of any type values or none type

Results:

Result	Description
output_sequence	memref of any type values or tensor of any type values

onnx.Sqrt (ONNXSqrtOp)

ONNX Sqrt operation

"Square root takes one input data (Tensor) and produces one output data" "(Tensor) where the square root is, y = x^0.5, is applied to" "the tensor elementwise. If x is negative, then it will return NaN."

Operands:

Operand	Description
X	memref of any type values or tensor of any type values

Results:

Result	Description
Y	memref of any type values or tensor of any type values

onnx.Squeeze (ONNXSqueezeOp)

ONNX Squeeze operation

"Remove single-dimensional entries from the shape of a tensor." "Takes a parameter axes with a list of axes to squeeze." "If axes is not provided, all the single dimensions will be removed from" "the shape. If an axis is selected with shape entry not equal to one, an error is raised."

Attributes:

Attribute	MLIR Type	Description
axes	ArrayAttr	64-bit integer array attribute

Operands:

Operand	Description
data	memref of any type values or tensor of any type values

Results:

Result	Description
squeezed	memref of any type values or tensor of any type values

onnx.StringNormalizer (ONNXStringNormalizerOp)

ONNX StringNormalizer operation

"StringNormalization performs string operations for basic cleaning." "This operator has only one input (denoted by X) and only one output" "(denoted by Y). This operator first examines the elements in the X," "and removes elements specified in "stopwords" attribute." "After removing stop words, the intermediate result can be further lowercased," "uppercased, or just returned depending the "case_change_action" attribute." "This operator only accepts [C]- and [1, C]-tensor." "If all elements in X are dropped, the output will be the empty value of string tensor with shape [1]" "if input shape is [C] and shape [1, 1] if input shape is [1, C]."

Attributes:

Attribute	MLIR Type	Description
case_change_action	StringAttr	string attribute
is_case_sensitive	IntegerAttr	64-bit signless integer attribute
locale	StringAttr	string attribute
stopwords	ArrayAttr	string array attribute

Operands:

Operand	Description
X	memref of any type values or tensor of any type values

Results:

Result	Description
Y	memref of any type values or tensor of any type values

onnx.Sub (ONNXSubOp)

ONNX Sub operation

"Performs element-wise binary subtraction (with Numpy-style broadcasting support)." "" "This operator supports multidirectional (i.e., Numpy-style) broadcasting; for more details please check the doc."

Operands:

Operand	Description
A	memref of any type values or tensor of any type values
B	memref of any type values or tensor of any type values

Results:

Result	Description
C	memref of any type values or tensor of any type values

onnx.Sum (ONNXSumOp)

ONNX Sum operation

"Element-wise sum of each of the input tensors (with Numpy-style broadcasting support)." "All inputs and outputs must have the same data type." "This operator supports multidirectional (i.e., Numpy-style) broadcasting; for more details please check the doc."

Operands:

Operand	Description
data_0	memref of any type values or tensor of any type values

Results:

Result	Description
sum	memref of any type values or tensor of any type values

onnx.Tan (ONNXTanOp)

ONNX Tan operation

"Calculates the tangent of the given input tensor, element-wise."

Operands:

Operand	Description
input	memref of any type values or tensor of any type values

Results:

Result	Description
output	memref of any type values or tensor of any type values

onnx.Tanh (ONNXTanhOp)

ONNX Tanh operation

"Calculates the hyperbolic tangent of the given input tensor element-wise."

Operands:

Operand	Description
input	memref of any type values or tensor of any type values

Results:

Result	Description
output	memref of any type values or tensor of any type values

onnx.TfIdfVectorizer (ONNXTfIdfVectorizerOp)

ONNX TfIdfVectorizer operation

"This transform extracts n-grams from the input sequence and save them as a vector. Input can" "be either a 1-D or 2-D tensor. For 1-D input, output is the n-gram representation of that input." "For 2-D input, the output is also a 2-D tensor whose i-th row is the n-gram representation of the i-th input row." "More specifically, if input shape is [C], the corresponding output shape would be [max(ngram_indexes) + 1]." "If input shape is [N, C], this operator produces a [N, max(ngram_indexes) + 1]-tensor." "" "In contrast to standard n-gram extraction, here, the indexes of extracting an n-gram from the original" "sequence are not necessarily consecutive numbers. The discontinuity between indexes are controlled by the number of skips." "If the number of skips is 2, we should skip two tokens when scanning through the original sequence." "Let's consider an example. Assume that input sequence is [94, 17, 36, 12, 28] and the number of skips is 2." "The associated 2-grams are [94, 12] and [17, 28] respectively indexed by [0, 3] and [1, 4]." "If the number of skips becomes 0, the 2-grams generated are [94, 17], [17, 36], [36, 12], [12, 28]" "indexed by [0, 1], [1, 2], [2, 3], [3, 4], respectively." "" "The output vector (denoted by Y) stores the count of each n-gram;" "Y[ngram_indexes[i]] indicates the times that the i-th n-gram is found. The attribute ngram_indexes is used to determine the mapping" "between index i and the corresponding n-gram's output coordinate. If pool_int64s is [94, 17, 17, 36], ngram_indexes is [1, 0]," "ngram_counts=[0, 0], then the Y[0] (first element in Y) and Y[1] (second element in Y) are the counts of [17, 36] and [94, 17]," "respectively. An n-gram which cannot be found in pool_strings/pool_int64s should be ignored and has no effect on the output." "Note that we may consider all skips up to S when generating the n-grams." "" "The examples used above are true if mode is "TF". If mode is "IDF", all the counts larger than 1 would be truncated to 1 and" "the i-th element in weights would be used to scale (by multiplication) the count of the i-th n-gram in pool. If mode is "TFIDF"," "this operator first computes the counts of all n-grams and then scale them by the associated values in the weights attribute." "" "Only one of pool_strings and pool_int64s can be set. If pool_int64s is set, the input should be an integer tensor." "If pool_strings is set, the input must be a string tensor."

Attributes:

Attribute	MLIR Type	Description
max_gram_length	IntegerAttr	64-bit signless integer attribute
max_skip_count	IntegerAttr	64-bit signless integer attribute
min_gram_length	IntegerAttr	64-bit signless integer attribute
mode	StringAttr	string attribute
ngram_counts	ArrayAttr	64-bit integer array attribute
ngram_indexes	ArrayAttr	64-bit integer array attribute
pool_int64s	ArrayAttr	64-bit integer array attribute
pool_strings	ArrayAttr	string array attribute
weights	ArrayAttr	32-bit float array attribute

Operands:

Operand	Description
X	memref of any type values or tensor of any type values

Results:

Result	Description
Y	memref of any type values or tensor of any type values

onnx.ThresholdedRelu (ONNXThresholdedReluOp)

ONNX ThresholdedRelu operation

"ThresholdedRelu takes one input data (Tensor) and produces one output data" "(Tensor) where the rectified linear function, y = x for x > alpha, y = 0 otherwise," "is applied to the tensor elementwise."

Attributes:

Attribute	MLIR Type	Description
alpha	FloatAttr	32-bit float attribute

Operands:

Operand	Description
X	memref of any type values or tensor of any type values

Results:

Result	Description
Y	memref of any type values or tensor of any type values

onnx.Tile (ONNXTileOp)

ONNX Tile operation

"Constructs a tensor by tiling a given tensor." "This is the same as function tile in Numpy, but no broadcast." "For example A = 1, 2], [3, 4, B = [1, 2], tile(A, B) = 1, 2, 1, 2], [3, 4, 3, 4"

Operands:

Operand	Description
input	memref of any type values or tensor of any type values
repeats	memref of any type values or tensor of any type values

Results:

Result	Description
output	memref of any type values or tensor of any type values

onnx.TopK (ONNXTopKOp)

ONNX TopK operation

"Retrieve the top-K largest or smallest elements along a specified axis. Given an input tensor of" "shape [a_1, a_2, ..., a_n, r] and integer argument k, return two outputs:" " -Value tensor of shape [a_1, a_2, ..., a_{axis-1}, k, a_{axis+1}, ... a_n]" " which contains the values of the top k elements along the specified axis" " -Index tensor of shape [a_1, a_2, ..., a_{axis-1}, k, a_{axis+1}, ... a_n] which" " contains the indices of the top k elements (original indices from the input" " tensor)." "" "If "largest" is 1 (the default value) then the k largest elements are returned." "If "sorted" is 1 (the default value) then the resulting k elements will be sorted." "If "sorted" is 0, order of returned 'Values' and 'Indices' are undefined." "" "Given two equivalent values, this operator uses the indices along the axis as" " a tiebreaker. That is, the element with the lower index will appear first."

Attributes:

Attribute	MLIR Type	Description
axis	IntegerAttr	64-bit signless integer attribute
largest	IntegerAttr	64-bit signless integer attribute
sorted	IntegerAttr	64-bit signless integer attribute

Operands:

Operand	Description
X	memref of any type values or tensor of any type values
K	memref of any type values or tensor of any type values

Results:

Result	Description
Values	memref of any type values or tensor of any type values
Indices	memref of any type values or tensor of any type values

onnx.Transpose (ONNXTransposeOp)

ONNX Transpose operation

"Transpose the input tensor similar to numpy.transpose. For example, when" "perm=(1, 0, 2), given an input tensor of shape (1, 2, 3), the output shape" "will be (2, 1, 3)."

Attributes:

Attribute	MLIR Type	Description
perm	ArrayAttr	64-bit integer array attribute

Operands:

Operand	Description
data	memref of any type values or tensor of any type values

Results:

Result	Description
transposed	memref of any type values or tensor of any type values

onnx.Unique (ONNXUniqueOp)

ONNX Unique operation

"Find the unique elements of a tensor. When an optional attribute 'axis' is provided, unique subtensors sliced along the 'axis' are returned. " "Otherwise the input tensor is flattened and unique values of the flattened tensor are returned. " "" "This operator returns the unique values or sliced unique subtensors of the input tensor and three optional outputs. " "The first output tensor 'Y' contains all unique values or subtensors of the input. " "The second optional output tensor 'indices' contains indices of 'Y' elements' first occurance in 'X'.. " "The third optional output tensor 'inverse_indices' contains, for elements of 'X', its corresponding indices in 'Y'. ". " "The fourth optional output tensor 'counts' contains the count of each element of 'Y' in the input. " "" "Outputs are either sorted in ascending order or optionally in the order of the first occurrence of the values in the input. " "" "https://docs.scipy.org/doc/numpy/reference/generated/numpy.unique.html" "" "Example 1:" " input_X = [2, 1, 1, 3, 4, 3]" " attribute_sorted = 0" " attribute_axis = None" " output_Y = [2, 1, 3, 4]" " output_indices = [0, 1, 3, 4]" " output_inverse_indices = [0, 1, 1, 2, 3, 2]" " output_counts = [1, 2, 2, 1]" "" "Example 2:" " input_X = 1, 3], [2, 3" " attribute_sorted = 1" " attribute_axis = None" " output_Y = [1, 2, 3]" " output_indices = [0, 2, 1]" " output_inverse_indices = [0, 2, 1, 2]" " output_counts = [1, 1, 2]" "" "Example 3:" " input_X = 1, 0, 0], [1, 0, 0], [2, 3, 4" " attribute_sorted = 1" " attribute_axis = 0" " output_Y = 1, 0, 0], [2, 3, 4" " output_indices = [0, 2]" " output_inverse_indices = [0, 0, 1]" " output_counts = [2, 1]" "" "Example 4:" " input_x = [1., 1.], [0., 1.], [2., 1.], [0., 1., " " 1., 1.], [0., 1.], [2., 1.], [0., 1.]" " attribute_sorted = 1" " attribute_axis = 1" "" " intermediate data are presented below for better understanding: " " " " there are 4 subtensors sliced along axis 1 of input_x (shape = (2, 4, 2)):" " A: 1, 1], [1, 1, " " 0, 1], [0, 1, " " 2, 1], [2, 1, " " 0, 1], [0, 1." " " " there are 3 unique subtensors: " " 1, 1], [1, 1, " " 0, 1], [0, 1, " " 2, 1], [2, 1." " " " sorted unique subtensors:" " B: 0, 1], [0, 1, " " 1, 1], [1, 1, " " 2, 1], [2, 1." " " " output_Y is constructed from B:" " [0. 1.], [1. 1.], [2. 1., " " 0. 1.], [1. 1.], [2. 1.]" "" " output_indices is to map from B to A:" " [1, 0, 2]" " " " output_inverse_indices is to map from A to B:" " [1, 0, 2, 0]" "" " output_counts = [2 1 1]"

Attributes:

Attribute	MLIR Type	Description
axis	IntegerAttr	64-bit signless integer attribute
sorted	IntegerAttr	64-bit signless integer attribute

Operands:

Operand	Description
X	memref of any type values or tensor of any type values

Results:

Result	Description
Y	memref of any type values or tensor of any type values
indices	memref of any type values or tensor of any type values or none type
inverse_indices	memref of any type values or tensor of any type values or none type
counts	memref of any type values or tensor of any type values or none type

onnx.Unsqueeze (ONNXUnsqueezeOp)

ONNX Unsqueeze operation

"Insert single-dimensional entries to the shape of an input tensor (data)." "Takes one required argument axes - which contains a list of dimension indices and this operator will insert a dimension of value 1 into the corresponding index of the output tensor (expanded)." "" "For example:" " Given an input tensor (data) of shape [3, 4, 5], then" " Unsqueeze(data, axes=[0, 4]) outputs a tensor (expanded) containing same data as data but with shape [1, 3, 4, 5, 1]." "" "The attribute axes should not contain any duplicate entries. It is an error if it contains duplicates." "The rank of the output tensor (output_rank) is the rank of the input tensor (data) plus the number of values in axes." "Each value in axes should be within the (inclusive) range [-output_rank , output_rank - 1]. " "The order of values in axes does not matter and can come in any order. " ""

Attributes:

Attribute	MLIR Type	Description
axes	ArrayAttr	64-bit integer array attribute

Operands:

Operand	Description
data	memref of any type values or tensor of any type values

Results:

Result	Description
expanded	memref of any type values or tensor of any type values

onnx.Upsample (ONNXUpsampleOp)

ONNX Upsample operation

"Upsample the input tensor." "Each dimension value of the output tensor is:" " output_dimension = floor(input_dimension * scale)."

Attributes:

Attribute	MLIR Type	Description
mode	StringAttr	string attribute

Operands:

Operand	Description
X	memref of any type values or tensor of any type values
scales	memref of any type values or tensor of any type values

Results:

Result	Description
Y	memref of any type values or tensor of any type values

onnx.Where (ONNXWhereOp)

ONNX Where operation

"Return elements, either from X or Y, depending on condition" " (with Numpy-style broadcasting support)." " Where behaves like numpy.where with three parameters:" " https://docs.scipy.org/doc/numpy/reference/generated/numpy.where.html"

Operands:

Operand	Description
condition	memref of any type values or tensor of any type values
X	memref of any type values or tensor of any type values
Y	memref of any type values or tensor of any type values

Results:

Result	Description
output	memref of any type values or tensor of any type values

onnx.Xor (ONNXXorOp)

ONNX Xor operation

"Returns the tensor resulted from performing the xor logical operation" "elementwise on the input tensors A and B (with Numpy-style broadcasting support)." "" "This operator supports multidirectional (i.e., Numpy-style) broadcasting; for more details please check the doc."

Operands:

Operand	Description
A	memref of any type values or tensor of any type values
B	memref of any type values or tensor of any type values

Results:

Result	Description
C	memref of any type values or tensor of any type values