--- a/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.asm/src/org/graalvm/compiler/asm/Assembler.java	Tue Sep 24 08:54:08 2019 -0700
+++ b/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.asm/src/org/graalvm/compiler/asm/Assembler.java	Tue Sep 24 12:47:15 2019 -0400
@@ -162,6 +162,10 @@
         return codeBuffer.close(trimmedCopy);
     }
 
+    public byte[] copy(int start, int end) {
+        return codeBuffer.copyData(start, end);
+    }
+
     private void checkAndClearLabelsWithPatches() throws InternalError {
         Label label = labelsWithPatches;
         while (label != null) {