src/share/vm/opto/callnode.hpp

@@ -894,10 +894,24 @@
   // are defined in graphKit.cpp, which sets up the bidirectional relation.)
   InitializeNode* initialization();
 
   // Convenience for initialization->maybe_set_complete(phase)
   bool maybe_set_complete(PhaseGVN* phase);
+
+#ifdef AARCH64
+  // Return true if allocation doesn't escape thread, its escape state
+  // needs be noEscape or ArgEscape. InitializeNode._does_not_escape
+  // is true when its allocation's escape state is noEscape or
+  // ArgEscape. In case allocation's InitializeNode is NULL, check
+  // AlllocateNode._is_non_escaping flag.
+  // AlllocateNode._is_non_escaping is true when its escape state is
+  // noEscape.
+  bool does_not_escape_thread() {
+    InitializeNode* init = NULL;
+    return _is_non_escaping || (((init = initialization()) != NULL) && init->does_not_escape());
+  }
+#endif
 };
 
 //------------------------------AllocateArray---------------------------------
 //
 // High-level array allocation