http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56294
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |ASSIGNED
AssignedTo|unassigned at gcc dot |rguenth at gcc dot gnu.org
|gnu.org |
--- Comment #19 from Richard Biener <rguenth at gcc dot gnu.org> 2013-03-06
09:45:11 UTC ---
Ok, with some added debug printing I see
Updating SSA:
creating PHI node in block #6 for elim_cost$cost
creating PHI node in block #17 for elim_cost$cost
-creating PHI node in block #19 for cost$cost
creating PHI node in block #6 for elim_cost$complexity
+creating PHI node in block #19 for cost$cost
that's obviously a problem (creating a PHI node involves creating a new
SSA name). That's because we insert new PHI nodes for to rename symbols
via
FOR_EACH_VEC_ELT (symbols_to_rename, i, sym)
insert_updated_phi_nodes_for (sym, dfs, blocks_to_update,
update_flags);
but we need to visit that in UID order ...
I have a patch.
