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From GitBox <...@apache.org>
Subject [GitHub] [incubator-tvm] moderato commented on a change in pull request #5811: [AutoTVM][Fix] Fixed 'not in list' error for define_reorder with 'candidate' policy.
Date Mon, 15 Jun 2020 18:21:42 GMT

moderato commented on a change in pull request #5811:
URL: https://github.com/apache/incubator-tvm/pull/5811#discussion_r440362082



##########
File path: python/tvm/autotvm/task/space.py
##########
@@ -119,21 +125,26 @@ def __init__(self, var, name=None):
         super(VirtualAxis, self).__init__()
         self.num_output = 1
 
-        if name is None:
-            name = 'axis_%d' % VirtualAxis.name_ct
-            VirtualAxis.name_ct += 1
+        self.name = None
+        if name is not None:
+            self.name = name
 
-        self.name = name
         if isinstance(var, (int, _long)):
             self.length = var
+            if name is None:
+                self.name = 'axis_%d' % VirtualAxis.name_ct
+                VirtualAxis.name_ct += 1
         elif isinstance(var, schedule.IterVar):
-            self.name = var.var.name
+            if self.name is None:
+                self.name = var.var.name
             if var.dom is None:
                 self.length = -1
             else:
                 self.length = get_const_int(var.dom.extent)
         elif isinstance(var, VirtualAxis):
             self.length = var.length
+            if self.name is None:
+                self.name = var.name

Review comment:
       Actually I'm a bit confused by the original semantic. It meant to overwrite the name
with var's name if var is an IterVar, but not to overwrite if var is a VirtualAxis which already
has a name. Plus, when name=None and var is an IterVar, name_ct increments by 1 but it's not
used in naming. Is this what it is supposed to be?




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