--- a/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.nodes/src/org/graalvm/compiler/nodes/LoopBeginNode.java	Thu Oct 31 14:23:06 2019 -0700
+++ b/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.nodes/src/org/graalvm/compiler/nodes/LoopBeginNode.java	Thu Oct 31 16:54:16 2019 -0700
@@ -141,7 +141,7 @@
     }
 
     public void setLoopFrequency(double loopFrequency) {
-        assert loopFrequency >= 0;
+        assert loopFrequency >= 1.0;
         this.loopFrequency = loopFrequency;
     }