http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55092
--- Comment #4 from Vladimir Makarov <vmakarov at redhat dot com> 2012-10-26 22:57:38 UTC --- (In reply to comment #2) > LRA reuses stack memory much better than reload (in all modes but especially > in -O0). May be that is the reason of the var-tracking problem. I forgot to say that LRA understands -fno-ira-share-spill-slots. In this case, each pseudo gets own stack slot. I thing it is worth to try it.