fix(imperative/ops): use tblgen to generate FastpathCopy

GitOrigin-RevId: b02157dacb8c08e8ee06b47cd442229832f15c94

imperative/python/src/tensor.cpp

@@ -13,6 +13,7 @@
 #include "megbrain/common.h"
 #include "megbrain/imperative/ops/utility.h"
 #include "megbrain/imperative/ops/backward_graph.h"
+#include "megbrain/imperative/ops/autogen.h"
 #include "megbrain/imperative/profiler.h"
 #include "megbrain/opr/io.h"
 

imperative/src/impl/ops/utility.cpp

@@ -31,8 +31,6 @@ OP_TRAIT_REG(FastpathCopy,FastpathCopy)
     .fallback();
 }} // fastpathcopy
 
-MGB_DYN_TYPE_OBJ_FINAL_IMPL(FastpathCopy);
-
 namespace { namespace identity {
 auto apply_on_var_node(
         const OpDef& def,

imperative/src/include/megbrain/imperative/ops/utility.h

@@ -35,18 +35,4 @@ struct GenericPyOp final : OpDefImplBase<GenericPyOp> {
     MGB_DYN_TYPE_OBJ_FINAL_DECL;
 };
 
-struct FastpathCopy final : OpDefImplBase<FastpathCopy> {
-    FastpathCopy() = default;
-
-    size_t hash() const override {
-        return mgb::hash(this->dyn_typeinfo());
-    }
-
-    bool is_same_st(const Hashable& rhs) const override {
-        return this->dyn_typeinfo() == rhs.dyn_typeinfo();
-    }
-
-    MGB_DYN_TYPE_OBJ_FINAL_DECL;
-};
-
 } // namespace mgb::imperative

src/core/include/megbrain/ir/ops.td

@@ -375,4 +375,6 @@ def CvtColor: MgbHashableOp<"CvtColor", [CvtColorParam]>;
 
 def CheckHasInf: MgbHashableOp<"CheckHasInf", [EmptyParam]>;
 
+def FastpathCopy: MgbHashableOp<"FastpathCopy">;
+
 #endif // MGB_OPS