jiangjiajun commented on code in PR #14160:
URL: https://github.com/apache/tvm/pull/14160#discussion_r1127280165
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python/tvm/relay/frontend/paddlepaddle.py:
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@@ -1084,6 +1084,21 @@ def convert_meshgrid(g, op, block):
g.add_node(op.output("Out")[i], out)
+def convert_mish(g, op, block):
+ """Operator converter for mish."""
+
+ x = g.get_node(op.input("X")[0])
+ dtype = infer_type(x).checked_type.dtype
+ threshold = _expr.const(op.attr("threshold"), dtype=dtype)
+ exp = _op.exp(x)
+ add = _op.add(exp, _expr.const(1.0, dtype))
+ log = _op.log(add)
+ softplus = _op.where(x > threshold, x, log)
+ tanh = _op.tanh(softplus)
+ out = _op.multiply(x, tanh)
+ g.add_node(op.output("Out")[0], out)
Review Comment:
I think we only need to implement this formula, there's no need to process
situation that `beta * x > threshold`, it's just a strategy to make calculation
stable.
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