http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48043
--- Comment #7 from Jakub Jelinek <jakub at gcc dot gnu.org> 2011-03-10 14:37:39 UTC --- If there isn't a mode mismatch in the instruction stream, then no. The problem is that because of the delegitimizate address bug adjust_insn in var-tracking (temporarily) changed the insn into (set (reg:SF ...) (symbol_ref:SI ...)) (SET_SRC coming from delegitimizing a (mem:SF ...)) and var-tracking not expecting mode mismatches. If there is (set (reg:SF ...) (subreg:SF (reg:SI ...))) or something similar, var-tracking ought to handle it correctly, sorry for the false alarm in #c3, I wrote it without looking carefully into it. Thanks for testing the patch, I'll post it to gcc-patches momentarily.
