On Tue, Sep 22, 2009 at 3:30 PM, Andy Dougherty <dough...@lafayette.edu> wrote: > On Tue, 22 Sep 2009, Nicholas Clark wrote: > >> On Tue, Sep 22, 2009 at 02:22:17PM -0400, Andy Dougherty wrote: >> > On Tue, 22 Sep 2009, Will Coleda via RT wrote: >> > >> > > On Tue Jul 08 20:56:02 2008, s1n wrote: >> > > > When trying to use the --optimize flag, building perl6 causes parrot >> > > to >> > > > segfault. Attached is the Configure.pl script output. >> > > <SNIP> >> > > >> > > s1n - this original report is over a year old; there have been a lot of >> > > changes to both parrot and rakudo in that time; we've also just >> > > committed something that should cause the optimized build to at least >> > > fail more cleanly if there's a problem (which we can then more easily >> > > identify and resolve.) >> > >> > Actually, all those ASSERT_ARGS checks aren't used in the --optimize build >> > anyway. Applying the following patch should enable them, assuming that's >> > what is actually intended. >> >> I don't think that it's absolutely necessary. > > I would tend to agree, but Coke seemed to be implying that the intent was > otherwise.
Apologies. I think you and Nick are right on this. >> The intent (at least in Perl 5 land) was to have the non-optimised build >> spot all the places where the non-NULL annotations were wrong, on the >> assumption that the code paths would be identical in the optimised and >> non-optimised builds. > > (One of the strange things about this report is that the failure only > happens with --optimize. And not just this report -- this has been an > issue on and off for years. But that probably doesn't really have > anything to do with ASSERT_ARGS.) > > More generally, whatever the default setting, it might be nice to have a > way to change it. I could easily imagine > > perl Configure.pl --optimize=-O --debugging=1 > > turning on the optimizer while still enabling all the -DNDEBUG checks, and > > perl Configure.pl --optimize=-O --debugging=0 > > turning on the optimizer and leaving out all the -DNDEBUG checks. > > Right now, that --optimize unconditionally leaves out the -DNDEBUG checks, > and the -debugging ends up doing nothing useful at all in those two > cases. > > -- > Andy Dougherty dough...@lafayette.edu > _______________________________________________ > http://lists.parrot.org/mailman/listinfo/parrot-dev > I regularly do 'perl Configure.pl --optimize --ccflags=-g' , which probably isn't quite the same thing but might be useful. -- Will "Coke" Coleda
