------- Comment #11 from rakdver at gcc dot gnu dot org 2006-03-14 01:10 ------- >From reading loop-unroll.c, I believe that we could safely have >analyze_iv_to_split_insn return NULL instead of aborting when >iv_analyze_result returns false.
>However, I wouldn't want to make such a change without first >giving you the opportunity to look at the code and indicate >if such a change is just papering over a problem elsewhere in >the IV code. This is definitely a bug in loop-iv.c -- once biv_p (SET_DEST (single_set (insn))) returns true, iv_analyze_result must succeed as well. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25569
