https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68130
Dominique d'Humieres <dominiq at lps dot ens.fr> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2015-10-28
Ever confirmed|0 |1
--- Comment #5 from Dominique d'Humieres <dominiq at lps dot ens.fr> ---
> The PRE dump difference is pretty unreadable already. So I wonder if
> the issue reproduces with -fno-tree-pre added. If not I wonder
> if it reproduces with -fdisable-tree-fre2 or at least -fno-tree-tail-merge.
The test succeeds with '-fno-tree-pre -fdisable-tree-fre2':
[Book15] f90/bug% /opt/gcc/gcc6p-228971/bin/gfortran ieee_2_red_2.f90 -Os -m32
-fno-tree-pre -fdisable-tree-fre2
f951: note: disable pass tree-fre2 for functions in the range of [0,
4294967295]
[Book15] f90/bug% a.out
[Book15] f90/bug%
but fails with the other options above.
