[REFACTOR][IR] Migrate Pass/PassContext ObjectRef to not-null

apache · Jun 3, 2020 · 2891365 · 2891365
1 parent 4347b41
commit 2891365
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Showing 7 changed files with 11 additions and 17 deletions.
diff --git a/include/tvm/ir/transform.h b/include/tvm/ir/transform.h
@@ -161,7 +161,7 @@ class PassContextNode : public Object {
  */
 class PassContext : public ObjectRef {
  public:
-  PassContext() {}
+  PassContext() : PassContext(make_object<PassContextNode>()) {}
   explicit PassContext(ObjectPtr<Object> n) : ObjectRef(n) {}
   /*!
    * \brief const accessor.
@@ -180,11 +180,6 @@ class PassContext : public ObjectRef {
     return static_cast<PassContextNode*>(get_mutable());
   }
 
-  /*!
-   * \brief Construct a PassContext containing the default configurations.
-   * \return The new PassContext.
-   */
-  TVM_DLL static PassContext Create();
   /*!
    * \brief Get the default pass context in the current scope.
    * \return The pass context.
@@ -216,6 +211,7 @@ class PassContext : public ObjectRef {
 
   // accessor.
   using ContainerType = PassContextNode;
+  static constexpr bool _type_is_nullable = false;
   class Internal;
 
  private:
@@ -388,11 +384,11 @@ class Sequential : public Pass {
    */
   TVM_DLL Sequential(Array<Pass> passes, String name = "sequential");
 
-  Sequential() = default;
   explicit Sequential(ObjectPtr<Object> n) : Pass(n) {}
 
   const SequentialNode* operator->() const;
   using ContainerType = Sequential;
+  static constexpr bool _type_is_nullable = false;
 };
 
 /*

diff --git a/src/ir/transform.cc b/src/ir/transform.cc
@@ -138,8 +138,6 @@ void PassContext::RegisterConfigOption(const char* key, uint32_t value_type_inde
   PassConfigManager::Global()->Register(key, value_type_index);
 }
 
-PassContext PassContext::Create() { return PassContext(make_object<PassContextNode>()); }
-
 void PassContext::Trace(const IRModule& module, const PassInfo& info, bool is_before) const {
   auto pass_ctx_node = this->operator->();
   if (pass_ctx_node->trace_func != nullptr) {
@@ -195,7 +193,7 @@ class ModulePass : public Pass {
   ModulePass(runtime::TypedPackedFunc<IRModule(IRModule, PassContext)> pass_func,
              PassInfo pass_info);
 
-  TVM_DEFINE_OBJECT_REF_METHODS(ModulePass, Pass, ModulePassNode);
+  TVM_DEFINE_NOTNULLABLE_OBJECT_REF_METHODS(ModulePass, Pass, ModulePassNode);
 };
 
 /*!
@@ -456,7 +454,7 @@ TVM_REGISTER_NODE_TYPE(PassContextNode);
 TVM_REGISTER_GLOBAL("transform.PassContext")
     .set_body_typed([](int opt_level, Array<String> required, Array<String> disabled,
                        TraceFunc trace_func, Optional<Map<String, ObjectRef>> config) {
-      auto pctx = PassContext::Create();
+      auto pctx = PassContext();
       pctx->opt_level = opt_level;
 
       pctx->required_pass = std::move(required);

diff --git a/src/relay/backend/compile_engine.cc b/src/relay/backend/compile_engine.cc
@@ -689,7 +689,7 @@ class CompileEngineImpl : public CompileEngineNode {
       cache_node->funcs = (*f)(cfunc->schedule, all_args, cache_node->func_name, key->source_func);
     } else {
       using tvm::transform::PassContext;
-      With<PassContext> fresh_pass_ctx_scope(PassContext::Create());
+      With<PassContext> fresh_pass_ctx_scope(PassContext());
 
       std::unordered_map<te::Tensor, tir::Buffer> binds;
       cache_node->funcs = tvm::lower(cfunc->schedule, all_args, cache_node->func_name, binds);
@@ -726,7 +726,7 @@ class CompileEngineImpl : public CompileEngineNode {
     }
 
     using tvm::transform::PassContext;
-    With<PassContext> fresh_pass_ctx_scope(PassContext::Create());
+    With<PassContext> fresh_pass_ctx_scope(PassContext());
 
     std::unordered_map<te::Tensor, tir::Buffer> binds;
     cache_node->funcs = tvm::lower(spair.first, all_args, cache_node->func_name, binds);

diff --git a/src/relay/ir/transform.cc b/src/relay/ir/transform.cc
@@ -99,7 +99,7 @@ class FunctionPass : public Pass {
       runtime::TypedPackedFunc<Function(Function, IRModule, PassContext)> pass_func,
       PassInfo pass_info);
 
-  TVM_DEFINE_OBJECT_REF_METHODS(FunctionPass, Pass, FunctionPassNode);
+  TVM_DEFINE_NOTNULLABLE_OBJECT_REF_METHODS(FunctionPass, Pass, FunctionPassNode);
 };
 
 FunctionPass::FunctionPass(

diff --git a/src/relay/transforms/fold_constant.cc b/src/relay/transforms/fold_constant.cc
@@ -275,7 +275,7 @@ Expr FoldConstant(const Expr& expr, const IRModule& mod) {
   Target target = Target::Create("llvm");
   // use a fresh build context
   // in case we are already in a build context.
-  With<PassContext> fresh_build_ctx(PassContext::Create());
+  With<PassContext> fresh_build_ctx(PassContext());
 
   return ConstantFolder(CreateInterpreter(mod, ctx, target), mod).Mutate(expr);
 }

diff --git a/src/relay/transforms/partial_eval.cc b/src/relay/transforms/partial_eval.cc
@@ -538,7 +538,7 @@ FInterpreter CPUInterpreter() {
   Target target = Target::Create("llvm");
   // use a fresh build context
   // in case we are already in a build context.
-  With<PassContext> fresh_build_ctx(PassContext::Create());
+  With<PassContext> fresh_build_ctx(PassContext());
 
   return CreateInterpreter(IRModule(nullptr), CPUContext(), target);
 }

diff --git a/src/tir/ir/transform.cc b/src/tir/ir/transform.cc
@@ -73,7 +73,7 @@ class PrimFuncPass : public Pass {
       runtime::TypedPackedFunc<PrimFunc(PrimFunc, IRModule, PassContext)> pass_func,
       PassInfo pass_info);
 
-  TVM_DEFINE_OBJECT_REF_METHODS(PrimFuncPass, Pass, PrimFuncPassNode);
+  TVM_DEFINE_NOTNULLABLE_OBJECT_REF_METHODS(PrimFuncPass, Pass, PrimFuncPassNode);
 };
 
 PrimFuncPass::PrimFuncPass(