src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.core.common/src/org/graalvm/compiler/core/common/type/FloatStamp.java
--- a/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.core.common/src/org/graalvm/compiler/core/common/type/FloatStamp.java Thu Jun 27 03:10:52 2019 +0200
+++ b/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.core.common/src/org/graalvm/compiler/core/common/type/FloatStamp.java Thu Jun 27 03:33:44 2019 +0200
@@ -150,6 +150,13 @@
}
/**
+ * Returns true if NaN is included in the value described by this stamp.
+ */
+ public boolean canBeNaN() {
+ return !nonNaN;
+ }
+
+ /**
* Returns true if this stamp represents the NaN value.
*/
public boolean isNaN() {