[Bug fortran/31593] Invariant DO loop variables and subroutines

[tobi at gcc dot gnu dot org]

------- Comment #31 from tobi at gcc dot gnu dot org  2009-08-15 09:51 -------
(In reply to comment #30)
> Escaping pointers for non-target dummy arguments can't happen in
> Fortran, can they?  Could we just disable this (or ad a
> TREE_CANNOT_ALIAS flag to the middle end, which is on by default for
> Fortran)?

Yes.  I've asked Richard about this on the mailing list.  BTW with my patches,
aermodf90 runs ~8% faster, and the other polyhedron benchmarks also seem to
have consistently improved.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31593