http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59019
--- Comment #6 from Eric Botcazou <ebotcazou at gcc dot gnu.org> --- > Always considering trap-if as ending a BB appears to be a bit of a rathole. > Every time I squash one issue, another raises its head. A little unexpected I'd say, what kind of issues does that introduce? > I did find that combine.c already has some bits to recognize when it does > something that may muck up the CFG and tries to compensate, it just doesn't > hadle the situation around trap-if. > > I'm going to see if I can proof of concept a fix in that code. Of course > this is a pass specific fix, but as I look deeper, more memories keep coming > back -- we've had special code in cse.c to deal with similar situations, so > maybe adding another case for combine isn't that bad after all. See existing examples in split_all_insns and lra.
