%tmp13 = tail call double @foo()
%tmp1314 = fptrunc double %tmp13 to float ; <float> [#uses=1]
%tmp3940 = fpext float %tmp1314 to double ; <double> [#uses=1]
%tmp13 = tail call double @foo()
%tmp1314 = fptrunc double %tmp13 to float ; <float> [#uses=1]
%tmp3940 = fpext float %tmp1314 to double ; <double> [#uses=1]