------- Comment #1 from tkoenig at gcc dot gnu dot org 2008-12-21 12:03 -------
To clarify, we could detect that the variable only ever
has the value of 'yes'. We already do the right
thing with constants:
$ cat foo-2.f90
program main
character(len=3), parameter :: a = 'yes'
print *,'yes' == a
end program main
$ gfortran -fdump-tree-original foo-2.f90
$ grep compare foo-2.f90.003t.original
$
--
tkoenig at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |missed-optimization
Priority|P3 |P5
Summary|eliminate constant string |eliminate some string
|comparisons |comparisons
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38592
