shingjan commented on a change in pull request #9620:
URL: https://github.com/apache/tvm/pull/9620#discussion_r764315817



##########
File path: tests/python/unittest/test_tvmscript_syntax_sugar.py
##########
@@ -62,5 +63,43 @@ def test_reads_writes_syntax_sugar():
     assert_structural_equal(transformed_matmul_no_syntax_sugar, 
transformed_matmul_syntax_sugar)
 
 
[email protected]_func
+def loop_no_syntax_sugar(a: T.handle) -> None:
+    A = T.match_buffer(a, (128, 128, 128, 128))
+    for i in T.serial(0, 128):
+        for j in T.parallel(0, 128):
+            for k in T.vectorized(0, 128):
+                for x in T.unroll(0, 128):
+                    for y in T.thread_binding(0, 128, thread="threadIdx.x"):
+                        for z in T.thread_binding(0, 128, 
thread="threadIdx.x"):
+                            A[i, j, k, x] = A[i, j, k, x] * 2.0
+
+
[email protected]_func
+def loop_syntax_sugar(a: T.handle) -> None:
+    A = T.match_buffer(a, (128, 128, 128, 128))
+    for i in T.serial(128):
+        for j in T.parallel(128):
+            for k in T.vectorized(128):
+                for x in T.unroll(128):
+                    for y in T.thread_binding(128, "threadIdx.x"):
+                        for z in T.thread_binding(128, thread="threadIdx.x"):
+                            A[i, j, k, x] = A[i, j, k, x] * 2.0
+
+
+def loop_syntax_sugar_fail(a: T.handle) -> None:

Review comment:
       This is intentional as `check_error` will append the decorator in the 
source code.




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