------- Comment #10 from jakub at gcc dot gnu dot org 2010-03-05 15:19 ------- I was hoping PR43176 caching patch would actually fix this too, but apparently that's not the case, because the problem here is not that we are emitting useless notes, but that the notes for hundreds of `a' variables (different ones, the source has many of them) keep alternating between (symbol_ref ".LCNNNN") and (mem (sp)). The question is if those really live at that memory and are clobbered all the time (could be related to PR43051 and PR43092 too) and why they are alternating.
-- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43058