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      1 // RUN: %clang_cc1 -triple x86_64 -emit-llvm -o - %s | FileCheck %s
      2 
      3 @protocol P1 @end
      4 @interface NSOperationQueue 
      5 {
      6   char ch[64];
      7   double d;
      8 }
      9 @end
     10 
     11 NSOperationQueue &f();
     12 NSOperationQueue<P1> &f1();
     13 
     14 void call_once() {
     15   f();
     16   f1();
     17 }
     18 // CHECK: call dereferenceable({{[0-9]+}}) %0* @_Z1fv()
     19 // CHECK: call dereferenceable({{[0-9]+}}) %0* @_Z2f1v()  
     20