From 0ad8af2feb08e322b8059d84a8cb5cea23fd5da6 Mon Sep 17 00:00:00 2001
From: sung <sunggg@umich.edu>
Date: Sun, 19 Mar 2023 20:57:18 -0700
Subject: [PATCH] register the dispatch for runtime::Module

---
 src/script/printer/ir/ir.cc                   |  8 ++++
 .../relax/test_tvmscript_printer_relax.py     | 44 +++++++++++++++++++
 2 files changed, 52 insertions(+)

diff --git a/src/script/printer/ir/ir.cc b/src/script/printer/ir/ir.cc
index f23820927db6..ff6ed4a497a2 100644
--- a/src/script/printer/ir/ir.cc
+++ b/src/script/printer/ir/ir.cc
@@ -102,6 +102,14 @@ TVM_STATIC_IR_FUNCTOR(IRDocsifier, vtable)
       return HeaderWrapper(d, ClassDoc(module_doc, {IR(d, "ir_module")}, (*f)->stmts));
     });
 
+TVM_STATIC_IR_FUNCTOR(IRDocsifier, vtable)
+    .set_dispatch<runtime::Module>("",
+                                   [](runtime::Module rtmod, ObjectPath p, IRDocsifier d) -> Doc {
+                                     std::ostringstream oss;
+                                     oss << rtmod << ", " << rtmod.get();
+                                     return LiteralDoc::Str(String(oss.str()), NullOpt);
+                                   });
+
 TVM_STATIC_IR_FUNCTOR(IRDocsifier, vtable)
     .set_dispatch<DictAttrs>("", [](DictAttrs attrs, ObjectPath p, IRDocsifier d) -> Doc {
       return d->AsDoc(attrs->dict, p->Attr("dict"));
diff --git a/tests/python/relax/test_tvmscript_printer_relax.py b/tests/python/relax/test_tvmscript_printer_relax.py
index bffa741353a9..6114b0bfabc1 100644
--- a/tests/python/relax/test_tvmscript_printer_relax.py
+++ b/tests/python/relax/test_tvmscript_printer_relax.py
@@ -529,5 +529,49 @@ def foo(x: R.Tensor((128,), dtype="float32")) -> R.Tensor((128,), dtype="float32
     )
 
 
+def test_runtime_module_in_irmodule_attrs():
+    @I.ir_module
+    class TestModule:
+        @T.prim_func
+        def tir_func(
+            x: T.Buffer((T.int64(128),), "float32"), y: T.Buffer((T.int64(128),), "float32")
+        ):
+            T.evaluate(0)
+
+        @R.function
+        def foo(x: R.Tensor((128,), "float32")) -> R.Tensor((128,), "float32"):
+            cls = TestModule
+            gv0 = R.call_tir(cls.tir_func, x, R.Tensor((128,), dtype="float32"))
+            return gv0
+
+    exec = relax.build(TestModule, "llvm")
+    NewTestModule = TestModule.with_attr("test", exec.mod)
+    # empty module alias
+    module_str = NewTestModule.script(module_alias="")
+    _assert_print(
+        module_str,
+        """
+# from tvm.script import ir as I
+# from tvm.script import tir as T
+# from tvm.script import relax as R
+
+@I.ir_module
+class Module:
+    I.module_attrs({"test": "Module(type_key= relax.Executable),
+""".rstrip()
+        + f" {exec.mod.handle.value:#x}".rstrip()
+        + """"})
+    @T.prim_func
+    def tir_func(x: T.Buffer((T.int64(128),), "float32"), y: T.Buffer((T.int64(128),), "float32")):
+        T.evaluate(0)
+
+    @R.function
+    def foo(x: R.Tensor((128,), dtype="float32")) -> R.Tensor((128,), dtype="float32"):
+        gv0 = R.call_tir(Module.tir_func, (x,), out_sinfo=R.Tensor((128,), dtype="float32"))
+        return gv0
+    """,
+    )
+
+
 if __name__ == "__main__":
     tvm.testing.main()