[GitHub] [tvm] sunggg commented on a diff in pull request #15341: [Unity][Transform] Elide redundant bindings of dataflow vars

["sunggg (via GitHub)" <gi...@apache.org>]

sunggg commented on code in PR #15341:
URL: https://github.com/apache/tvm/pull/15341#discussion_r1266243695


##########
tests/python/relax/test_transform_dead_code_elimination.py:
##########
@@ -448,5 +448,79 @@ def main(
     verify(Input, Expected)
 
 
+def test_elide_intermediate_dataflow_var_simple():
+    @tvm.script.ir_module
+    class Input:
+        @R.function
+        def main() -> R.Tensor((), "int32"):
+            with R.dataflow():
+                y = R.const(1)
+                n = y
+                R.output(n)
+            return n
+
+    @tvm.script.ir_module
+    class Expected:
+        @R.function
+        def main() -> R.Tensor((), "int32"):
+            with R.dataflow():
+                n = R.const(1)
+                R.output(n)
+            return n
+
+    verify(Input, Expected)
+
+
+def test_elide_intermediate_dataflow_var_match_cast():

Review Comment:
   This seems like constant folding.



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