[Bug libfortran/38199] [4.7/4.8/4.9 Regression] missed optimization: I/O performance

[jvdelisle at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38199

--- Comment #26 from Jerry DeLisle <jvdelisle at gcc dot gnu.org> ---
Test case from Comment #22

ifort:

real    0m0.608s
user    0m0.464s
sys    0m0.080s


gfortran:

real    0m22.893s
user    0m21.059s
sys    0m0.152s

Obviously we could do better.