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// { dg-do compile } // { dg-options "-O2 -fdump-tree-optimized" } */ struct C { int i; }__attribute__((may_alias)) ; C a, b; int main() { a = static_cast <C&> (b); } // { dg-final { scan-tree-dump "{ref-all}\\\)&b\];" "optimized" } } */