I'm getting a gfortran failure which only appears with checking turned on the gcc-4.0.x branch: http://gcc.gnu.org/ml/gcc-testresults/2005-12/msg00417.html
It does not happen in 4.1/mainline. It does not happen if I target i686. To repeat configure with --target=x86_64-unknown-linux-gnu --enable-checking=yes,rtl -- Summary: [4.0 only] checking failure in execute/intrinsic_eoshift.f90 Product: gcc Version: 4.0.3 Status: UNCONFIRMED Keywords: ice-checking Severity: normal Priority: P3 Component: fortran AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: ghazi at gcc dot gnu dot org GCC target triplet: x86_64-unknown-linux-gnu http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25576