http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51978
Eric Botcazou <ebotcazou at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2012-01-24
Ever Confirmed|0 |1
--- Comment #2 from Eric Botcazou <ebotcazou at gcc dot gnu.org> 2012-01-24
11:11:17 UTC ---
> The attached untested patch cures the ICE, still I wonder about the single_set
> instead of note_stores, I'd expect the pass isn't really prepared to handle
> multiple sets in parallel alongside with sign/zero extension anyway.
The patch looks fine to me. Yes, single_set would probably be sufficient, as
merge_def_and_ext punts if there are multiple sets.
> Additionally, I wonder if some of the PR51667 additions couldn't be dropped
> again (4.8 material) now that we keep the UD/DU links for the whole duration
> of
> the pass.
There is a FIXME for this.
