https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82056
Dominique d'Humieres <dominiq at lps dot ens.fr> changed: What |Removed |Added ---------------------------------------------------------------------------- Keywords| |diagnostic Priority|P3 |P5 Status|UNCONFIRMED |NEW Last reconfirmed| |2017-08-31 Ever confirmed|0 |1 Severity|normal |enhancement --- Comment #1 from Dominique d'Humieres <dominiq at lps dot ens.fr> --- The test is coming from https://groups.google.com/forum/#!topic/comp.lang.fortran/C4TowT3_Vgw. As pointed out in the discussion, compiling the test with -O -Wall gives pr82056.f90:8:0: real, dimension(size(x)) :: y Warning: 'x.dim[0].ubound' is used uninitialized in this function [-Wuninitialized] pr82056.f90:8:0: Warning: 'x.dim[0].lbound' is used uninitialized in this function [-Wuninitialized]