Fix AV

Author: hez2010

src/coreclr/jit/importercalls.cpp

@@ -8963,9 +8963,6 @@ void Compiler::impDevirtualizeCall(GenTreeCall*            call,
     CORINFO_CONTEXT_HANDLE  exactContext          = dvInfo.tokenLookupContext;
     CORINFO_RESOLVED_TOKEN* pDerivedResolvedToken = &dvInfo.resolvedTokenDevirtualizedMethod;
 
-    CORINFO_SIG_INFO derivedSig;
-    info.compCompHnd->getMethodSig(derivedMethod, &derivedSig);
-
     unsigned derivedMethodAttribs = 0;
     bool     derivedMethodIsFinal = false;
     bool     canDevirtualize      = false;
@@ -8974,21 +8971,6 @@ void Compiler::impDevirtualizeCall(GenTreeCall*            call,
     const char* note = "inexact or not final";
 #endif
 
-    // Array interface devirt can return a nonvirtual generic method of the non-generic SZArrayHelper class.
-    //
-    if (derivedSig.hasTypeArg())
-    {
-        // If we don't know the array type exactly we may have the wrong interface type here.
-        // Bail out.
-        //
-        const bool isArrayInterfaceDevirt = (objClassAttribs & CORINFO_FLG_ARRAY) != 0;
-        if (isArrayInterfaceDevirt && !isExact)
-        {
-            JITDUMP("Array interface devirt: array type is inexact, sorry.\n");
-            return;
-        }
-    }
-
     // If we failed to get a method handle, we can't directly devirtualize.
     //
     // This can happen with AOT, if the devirtualization crosses
@@ -9027,6 +9009,24 @@ void Compiler::impDevirtualizeCall(GenTreeCall*            call,
         canDevirtualize = isExact || objClassIsFinal || (!isInterface && derivedMethodIsFinal);
     }
 
+    CORINFO_SIG_INFO derivedSig;
+    info.compCompHnd->getMethodSig(derivedMethod, &derivedSig);
+
+    // Array interface devirt can return a nonvirtual generic method of the non-generic SZArrayHelper class.
+    //
+    if (derivedSig.hasTypeArg())
+    {
+        // If we don't know the array type exactly we may have the wrong interface type here.
+        // Bail out.
+        //
+        const bool isArrayInterfaceDevirt = (objClassAttribs & CORINFO_FLG_ARRAY) != 0;
+        if (isArrayInterfaceDevirt && !isExact)
+        {
+            JITDUMP("Array interface devirt: array type is inexact, sorry.\n");
+            return;
+        }
+    }
+
     // We still might be able to do a guarded devirtualization.
     // Note the call might be an interface call or a virtual call.
     //