Andrey Chernov wrote: > On Wed, Jun 27, 2007 at 11:39:34AM +0200, Harti Brandt wrote: >> On Wed, 27 Jun 2007, Kostik Belousov wrote: >> >> KB>On Tue, Jun 26, 2007 at 07:10:21PM +0000, Andrey A. Chernov wrote: >> KB>> ache 2007-06-26 19:10:21 UTC >> KB>> >> KB>> FreeBSD src repository >> KB>> >> KB>> Modified files: >> KB>> share/mk sys.mk >> KB>> Log: >> KB>> This is temp workaround of nasty gcc 4.2.0 -O2 bug which may skip the >> rest >> KB>> of the loop when arrays used inside. >> KB>> http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32500 >> KB>> >> KB>> Approved by: re (kensmith) >> KB> >> KB>This seems to break cross-build of HEAD on RELENG_6. >> >> And even building on a pre-gcc-4.2.0 CURRENT. > > I just sent this cross-building compatible variant to re@ for approve: > > --- sys.mk.orig 2007-06-27 14:04:15.000000000 +0400 > +++ sys.mk 2007-06-27 14:04:33.000000000 +0400 > @@ -35,7 +35,7 @@ > CFLAGS ?= -O > .else > CC ?= cc > -CFLAGS ?= -O2 -fno-strict-aliasing -fno-tree-vrp -pipe > +CFLAGS ?= -O1 -fno-strict-aliasing -pipe > .endif
Nitpicking: I think -O1 implies no strict-aliasing. So -O1 -pipe might be just Ok. Well, I'd say that all these changes looks scary to me. Is there any code in our base system to trigger tree-vrp bug? Do we still have some time to have gcc fixed and tested rather than using band-aid like this? IMHO fixing gcc sounds better than "fix"ing sys.mk if time permits us to fix and test a vendor solution. Cheers, _______________________________________________ cvs-all@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/cvs-all To unsubscribe, send any mail to "[EMAIL PROTECTED]"
