[Bug fortran/84963] [8 Regression] ICE in get_constraint_for_ssa_var, at tree-ssa-structalias.c:2955

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84963

--- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> ---
We run into

2949              /* Canonicalize the PT uid of all aliases to the ultimate
target.
2950                 ???  Hopefully the set of aliases can't change in a way
that
2951                 changes the ultimate alias target.  */
2952              gcc_assert ((! DECL_PT_UID_SET_P (node->decl)
2953                           || DECL_PT_UID (node->decl) == DECL_UID
(node->decl))
2954                          && (! DECL_PT_UID_SET_P (t)
2955                              || DECL_PT_UID (t) == DECL_UID
(node->decl)));

-fno-ipa-icf fixes it.