--- a/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.lir.amd64/src/org/graalvm/compiler/lir/amd64/AMD64ZapRegistersOp.java	Thu Jul 25 11:44:37 2019 -0700
+++ b/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.lir.amd64/src/org/graalvm/compiler/lir/amd64/AMD64ZapRegistersOp.java	Thu Jul 25 17:35:58 2019 -0400
@@ -34,6 +34,7 @@
 import org.graalvm.compiler.lir.asm.CompilationResultBuilder;
 import org.graalvm.compiler.lir.framemap.FrameMap;
 
+import jdk.vm.ci.amd64.AMD64Kind;
 import jdk.vm.ci.code.Register;
 import jdk.vm.ci.code.RegisterSaveLayout;
 import jdk.vm.ci.meta.JavaConstant;
@@ -66,7 +67,7 @@
         for (int i = 0; i < zappedRegisters.length; i++) {
             Register reg = zappedRegisters[i];
             if (reg != null) {
-                AMD64Move.const2reg(crb, masm, reg, zapValues[i]);
+                AMD64Move.const2reg(crb, masm, reg, zapValues[i], AMD64Kind.QWORD);
             }
         }
     }