[Bug lto/51497] [4.7 Regression] The run time for the polyhedron test nf.f90 is ~10% slower with -flto after revision 182107

[dominiq at lps dot ens.fr]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51497

--- Comment #10 from Dominique d'Humieres <dominiq at lps dot ens.fr> 
2011-12-14 15:36:19 UTC ---
> Created attachment 26080
>   --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=26080
> patch candidate
> ...

The patch fixes this pr without any visible side-effect on the other tests of
the polyhedron suite. Thanks.