Add trivial case IsSubtypeNode

fangerer · fangerer · commit d907fe06691c · 2021-05-17T11:43:53.000+02:00
diff --git a/graalpython/com.oracle.graal.python/src/com/oracle/graal/python/nodes/classes/IsSubtypeNode.java b/graalpython/com.oracle.graal.python/src/com/oracle/graal/python/nodes/classes/IsSubtypeNode.java
@@ -119,6 +119,13 @@ protected PythonBuiltinClassType getType(Object cls, ConditionProfile builtinTyp
         }
     }
 
+    @Specialization(guards = "isSameType(isSameTypeNode, derived, cls)")
+    static boolean isIdentical(Object derived, Object cls,
+                    @SuppressWarnings("unused") @Cached IsSameTypeNode isSameTypeNode) {
+        // trivial case: derived == cls
+        return true;
+    }
+
     @Specialization(guards = {
                     "cachedDerived != null",
                     "cachedCls != null",

Original file line number	Diff line number	Diff line change
`@@ -119,6 +119,13 @@ protected PythonBuiltinClassType getType(Object cls, ConditionProfile builtinTyp`
`119`	`119`	`}`
`120`	`120`	`}`
`121`	`121`
	`122`	`+ @Specialization(guards = "isSameType(isSameTypeNode, derived, cls)")`
	`123`	`+ static boolean isIdentical(Object derived, Object cls,`
	`124`	`+ @SuppressWarnings("unused") @Cached IsSameTypeNode isSameTypeNode) {`
	`125`	`+ // trivial case: derived == cls`
	`126`	`+ return true;`
	`127`	`+ }`
	`128`	`+`
`122`	`129`	`@Specialization(guards = {`
`123`	`130`	`"cachedDerived != null",`
`124`	`131`	`"cachedCls != null",`