src/share/vm/opto/callnode.cpp

rev 3361 : 7173584: Implement arraycopy as a macro node
Summary: delay the conversion of arraycopy to stub calls to macro expansion
Reviewed-by:

*** 1685,1689 ****
--- 1685,1728 ----
        this->set_non_esc_obj();
      }
    }
    return result;
  }
+ 
+ ArrayCopyNode::ArrayCopyNode(Compile* C, bool alloc_tightly_coupled)
+   : CallNode(arraycopy_type(), NULL, TypeRawPtr::BOTTOM), _alloc_tightly_coupled(alloc_tightly_coupled), _kind(ArrayCopy) {
+   init_class_id(Class_ArrayCopy);
+   init_flags(Flag_is_macro);
+   C->add_macro_node(this);
+ }
+ 
+ uint ArrayCopyNode::size_of() const { return sizeof(*this); }
+ 
+ ArrayCopyNode* ArrayCopyNode::make(GraphKit* kit, bool may_throw,
+                                    Node* src, Node* src_offset, Node* dest, Node* dest_offset, Node* length,
+                                    bool alloc_tightly_coupled) {
+ 
+   ArrayCopyNode* ac = new (kit->C, ParmLimit)ArrayCopyNode(kit->C, alloc_tightly_coupled);
+   Node* prev_mem = kit->set_predefined_input_for_runtime_call(ac);
+ 
+   ac->init_req( ArrayCopyNode::Src, src);
+   ac->init_req( ArrayCopyNode::SrcPos, src_offset);
+   ac->init_req( ArrayCopyNode::Dest, dest);
+   ac->init_req( ArrayCopyNode::DestPos, dest_offset);
+   ac->init_req( ArrayCopyNode::Length, length);
+ 
+   if (may_throw) {
+     ac->set_req( TypeFunc::I_O , kit->i_o() );
+     kit->add_safepoint_edges(ac, false);
+   }
+ 
+   return ac;
+ }
+ 
+ void ArrayCopyNode::connect_outputs(GraphKit* kit) {
+   kit->set_all_memory_call(this, true);
+   kit->set_control(kit->gvn().transform( new (kit->C, 1) ProjNode(this,TypeFunc::Control) ));
+   kit->set_i_o(kit->gvn().transform(new (kit->C, 1) ProjNode(this, TypeFunc::I_O)));
+   kit->make_slow_call_ex(this, kit->env()->Throwable_klass(), true);
+   kit->set_all_memory_call(this);
+ }
+