[Bug fortran/50463] [4.6/4.7 Regression] -ftree-dse leeds to wrong code with gfortran

[dominiq at lps dot ens.fr]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50463

--- Comment #3 from Dominique d'Humieres <dominiq at lps dot ens.fr> 2011-09-20 
13:18:35 UTC ---
r165415 is OK
r165758 gives a wrong code.