chore: import upstream snapshot with attribution

2026-07-13 13:36:25 +08:00
commit 26446540fa
3151 changed files with 974126 additions and 0 deletions
@@ -0,0 +1,116 @@
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+
+import tvm
+import tvm.testing
+from tvm.script import ir as I
+from tvm.script import tirx as T
+from tvm.tirx.stmt_functor import substitute
+
+
+def _apply_substitute(mod):
+    """Apply substitute transform to replace the first parameter with 16."""
+    func = mod["main"]
+    vmap = {func.params[0]: 16}
+    new_func = (
+        tvm.tirx.PrimFunc(params=[], body=substitute(func.body, vmap))
+        .with_attr("global_symbol", func.attrs["global_symbol"])
+        .with_attr("s_tir", True)
+    )
+    return tvm.IRModule.from_expr(new_func)
+
+
+def test_basic_substitute():
+    @I.ir_module
+    class Before:
+        @T.prim_func(s_tir=True)
+        def main(n: T.int32):
+            for i in range(n):
+                T.evaluate(i)
+
+    @I.ir_module
+    class Expected:
+        @T.prim_func(s_tir=True)
+        def main():
+            for i in range(16):
+                T.evaluate(i)
+
+    After = _apply_substitute(Before)
+    tvm.ir.assert_structural_equal(After, Expected)
+
+
+def test_substitute_allocate():
+    @I.ir_module
+    class Before:
+        @T.prim_func(s_tir=True)
+        def main(n: T.int32):
+            A = T.alloc_buffer((n,), "float32")
+            T.evaluate(A.data)
+
+    @I.ir_module
+    class Expected:
+        @T.prim_func(s_tir=True)
+        def main():
+            A = T.alloc_buffer((16,), "float32")
+            T.evaluate(A.data)
+
+    After = _apply_substitute(Before)
+    tvm.ir.assert_structural_equal(After, Expected)
+
+
+def test_substitute_buffer_load():
+    @I.ir_module
+    class Before:
+        @T.prim_func(s_tir=True)
+        def main(n: T.int32):
+            A = T.alloc_buffer((n,), "float32")
+            for i in range(n):
+                T.evaluate(A[i])
+
+    @I.ir_module
+    class Expected:
+        @T.prim_func(s_tir=True)
+        def main():
+            A = T.alloc_buffer((16,), "float32")
+            for i in range(16):
+                T.evaluate(A[i])
+
+    After = _apply_substitute(Before)
+    tvm.ir.assert_structural_equal(After, Expected)
+
+
+def test_substitute_decl_buffer():
+    @I.ir_module
+    class Before:
+        @T.prim_func(s_tir=True)
+        def main(n: T.int32):
+            A = T.alloc_buffer((n,), "float32")
+            T.evaluate(A.data)
+
+    @I.ir_module
+    class Expected:
+        @T.prim_func(s_tir=True)
+        def main():
+            A = T.alloc_buffer((16,), "float32")
+            T.evaluate(A.data)
+
+    After = _apply_substitute(Before)
+    tvm.ir.assert_structural_equal(After, Expected)
+
+
+if __name__ == "__main__":
+    tvm.testing.main()