Add test file for error with slice when using descript_scheduler

Author: yadej

tests/filecheck/schedules/bugs/test_schedule_slice_err.py

@@ -0,0 +1,45 @@
+# RUN: python %s 2>&1 | filecheck %s
+
+import xtc.graphs.xtc.op as O
+from xtc.backends.mlir import Backend
+from xtc.schedules.descript import descript_scheduler
+
+I, J, K, dtype = 50, 64, 64, "float32"
+a = O.tensor((I, K), dtype, name="A")
+b = O.tensor((K, J), dtype, name="B")
+
+with O.graph(name="matmul") as gb:
+    O.matmul(a, b, name="C")
+
+graph = gb.graph
+print(graph)
+
+impl = Backend(graph)
+
+sch = impl.get_scheduler()
+descript_scheduler(
+    scheduler=sch,
+    node_name="C",
+    abstract_axis=["i", "j", "k"],
+    spec={
+        'k': {},
+        'j': {},
+        'i[0:18]':
+            {'i#18': {},
+             'k#32': {},
+             'k#16': {},
+             'i#9': {'unroll': 9},
+             'j#32': {'unroll': 32},
+             'j#16': {'vectorize': None}},
+        'i[18:]': {
+            'i#32': {},
+            'k#32': {},
+            'k#16': {},
+            'i#16': {'unroll': 16},
+            'j#32': {'unroll': 32},
+            'j#16': {'vectorize': None}
+        }
+    }
+)
+
+# XFAIL:*