diff -r 0152ad7b38b8 -r 6df94ce3ab2f src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.lir/src/org/graalvm/compiler/lir/gen/ArithmeticLIRGeneratorTool.java
--- a/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.lir/src/org/graalvm/compiler/lir/gen/ArithmeticLIRGeneratorTool.java	Tue Sep 24 08:54:08 2019 -0700
+++ b/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.lir/src/org/graalvm/compiler/lir/gen/ArithmeticLIRGeneratorTool.java	Tue Sep 24 12:47:15 2019 -0400
@@ -137,8 +137,4 @@
         throw GraalError.unimplemented("No specialized implementation available");
     }
 
-    @SuppressWarnings("unused")
-    default void emitZeroMemory(Value address, Value length) {
-        throw GraalError.unimplemented("Bulk zeroing is not supported on this platform");
-    }
 }