http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53495
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |ASSIGNED
AssignedTo|unassigned at gcc dot |jakub at gcc dot gnu.org
|gnu.org |
--- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> 2012-08-13
10:36:32 UTC ---
Created attachment 28003
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=28003
gcc48-pr53495.patch
The problem is that find_moveable_pseudos creates some extra pseudos/def_insns,
but then trivially_dead_insns is called by ira and deletes them (because they
were feeding trivially dead insns only). Then move_unallocated_pseudos is
called and expects to be able to tweak all the insns find_moveable_pseudos
created. The attached untested patch fixes that.
