http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56363
--- Comment #6 from Jay <jay.krell at cornell dot edu> 2013-02-19 21:52:31 UTC --- > should pass op0 and op1 to the fold_build2_loc call, instead of arg0/arg1 I don't disagree, but I really I don't know. Clearly that means almost but not exactly the same thing. I am running a build "now" (i.e. when I left home this morning) with the bogus change from the other bug, where I change all div forms here, with -enable-checking, to see if it still triggers. I can also try our frontend against 4.7.2 with -enable-checking, i.e. w/o the bogosity of changing all div forms, and confirm there is still a problem.
