--- old/src/hotspot/share/c1/c1_Instruction.cpp	2018-12-03 22:11:32.115774395 -0800
+++ new/src/hotspot/share/c1/c1_Instruction.cpp	2018-12-03 22:11:31.971768994 -0800
@@ -230,6 +230,10 @@
   }
 }
 
+ciType* NewMultiArray::exact_type() const {
+  return _klass;
+}
+
 ciType* NewArray::declared_type() const {
   return exact_type();
 }
--- old/src/hotspot/share/c1/c1_Instruction.hpp	2018-12-03 22:11:32.639794050 -0800
+++ new/src/hotspot/share/c1/c1_Instruction.hpp	2018-12-03 22:11:32.499788798 -0800
@@ -1456,6 +1456,8 @@
     StateSplit::input_values_do(f);
     for (int i = 0; i < _dims->length(); i++) f->visit(_dims->adr_at(i));
   }
+
+  ciType* exact_type() const;
 };