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; RUN: opt < %s -instcombine -S | grep "store volatile" ; RUN: opt < %s -instcombine -S | grep "load volatile" @x = weak global i32 0 ; <i32*> [#uses=2] define void @self_assign_1() { entry: %tmp = load volatile i32, i32* @x ; <i32> [#uses=1] store volatile i32 %tmp, i32* @x br label %return return: ; preds = %entry ret void }