masahi commented on code in PR #15679:
URL: https://github.com/apache/tvm/pull/15679#discussion_r1324325599
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python/tvm/relax/transform/legalize_ops/manipulate.py:
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@@ -205,3 +213,16 @@ def te_layout_transform(data, name):
output_dtype = call_args[0].struct_info.dtype
output_sinfo = [TensorStructInfo(output_shape, output_dtype)]
return call_tir(gvar, call_args, output_sinfo, tir_vars)
+
+
+@register_legalize("relax.remove_pad")
+def _remove_pad(bb: BlockBuilder, call: Call) -> Expr:
+ orig_shape = call.attrs.orig_shape
+
+ def te_remove_pad(data):
+ """
+ Returns a new compute that restrict the original expression to the
shape of orig_shape
+ """
+ return te.compute(orig_shape, data, name="te_remove_pad")
Review Comment:
> currently the elements are padded in the end of the original buffer
Isn't that a specific behavior of the layout transform pass? Here you are
defining a general function that undoes padding, and padding can be anything
along the begin / end of each axis.
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