[Bug tree-optimization/62171] restrict pointer to struct with restrict pointers parm doesn't prevent aliases

[vries at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62171

--- Comment #3 from vries at gcc dot gnu.org ---
(In reply to Richard Biener from comment #2)
> And maybe set DECL_BY_REFERENCE, a mere REFERENCE_TYPE doesn't prevent
> you from doing (&param)[2] which we'd miscompile.  Not sure who added
> that REFERENCE_TYPE code.

Submitted here: https://gcc.gnu.org/ml/gcc-patches/2011-09/msg01489.html
OK-ed here: https://gcc.gnu.org/ml/gcc-patches/2011-09/msg01489.html