diff --git a/python/tvm/relay/frontend/tflite.py b/python/tvm/relay/frontend/tflite.py index 3a13473202a3..eb9e742ff85f 100644 --- a/python/tvm/relay/frontend/tflite.py +++ b/python/tvm/relay/frontend/tflite.py @@ -67,6 +67,7 @@ def __init__(self, model, subgraph, exp_tab): 'MUL': self.convert_mul, 'FULLY_CONNECTED': self.convert_fully_connected, 'PAD': self.convert_pad, + 'LOGISTIC': self.convert_logistic, } def check_unsupported_ops(self): @@ -218,6 +219,23 @@ def convert_reshape(self, op): return out + def convert_logistic(self, op): + """Convert TFLite LOGISTIC""" + try: + from tflite.Operator import Operator + except ImportError: + raise ImportError("The tflite package must be installed") + + assert isinstance(op, Operator) + input_tensors = self.get_input_tensors(op) + assert len(input_tensors) == 1, "input tensors length should be 1" + + input_tensor = input_tensors[0] + in_expr = self.get_expr(input_tensor.tensor_idx) + + out = _op.sigmoid(in_expr) + return out + def convert_softmax(self, op): """Convert TFLite softmax""" try: diff --git a/tests/python/frontend/tflite/test_forward.py b/tests/python/frontend/tflite/test_forward.py index 7da2b851bb3f..5c2e3afb5a0d 100644 --- a/tests/python/frontend/tflite/test_forward.py +++ b/tests/python/frontend/tflite/test_forward.py @@ -423,6 +423,22 @@ def test_forward_pad(): np.array([[1, 1], [2, 2]], dtype=np.int32)]) +####################################################################### +# Logistic +# -------- + +def _test_logistic(data): + """ One iteration of LOGISTIC """ + with tf.Graph().as_default(): + in_data = array_ops.placeholder(shape=data.shape, dtype=data.dtype) + out = math_ops.sigmoid(in_data) + compare_tflite_with_tvm(data, 'Placeholder:0', [in_data], [out]) + +def test_forward_logistic(): + """ LOGISTIC """ + _test_logistic(np.arange(6.0, dtype=np.float32).reshape((1, 6))) + + ####################################################################### # Softmax # ------- @@ -563,6 +579,7 @@ def test_forward_inception_v4_net(): # NN test_forward_convolution() + test_forward_logistic() test_forward_pooling() test_forward_softmax() test_forward_fully_connected()