avoid assert only block

Author: Pierre-vh

llvm/lib/Transforms/IPO/Attributor.cpp

@@ -259,16 +259,16 @@ AA::getInitialValueForObj(Attributor &A, const AbstractAttribute &QueryingAA,
     if (!Initializer)
       return nullptr;
   } else {
-    if (GV->hasLocalLinkage()) {
-      // Globals with local linkage are always initialized.
-      assert(GV->hasInitializer());
-    } else {
+    if (!GV->hasLocalLinkage()) {
       // Externally visible global that's either non-constant,
       // or a constant with an uncertain initializer.
       if (!GV->hasDefinitiveInitializer() || !GV->isConstant())
         return nullptr;
     }
 
+    // Globals with local linkage are always initialized.
+    assert(!GV->hasLocalLinkage() || GV->hasInitializer());
+
     if (!Initializer)
       Initializer = GV->getInitializer();
   }