--- a/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.core.amd64/src/org/graalvm/compiler/core/amd64/AMD64LoweringProviderMixin.java	Wed Oct 09 19:38:11 2019 -0700
+++ b/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.core.amd64/src/org/graalvm/compiler/core/amd64/AMD64LoweringProviderMixin.java	Wed Oct 09 21:53:48 2019 -0700
@@ -35,7 +35,7 @@
     }
 
     @Override
-    default int bulkZeroingStride() {
-        return 1;
+    default boolean supportsBulkZeroing() {
+        return true;
     }
 }