There is already a ./configure --with-lto flag, why not using it? I'm using --with-lto without PGO for months, I never noticed that the option is fully ignored!
Victor 2017-08-09 9:52 GMT+02:00 Antoine Pitrou <solip...@pitrou.net>: > On Wed, 9 Aug 2017 13:36:28 +1000 > Nick Coghlan <ncogh...@gmail.com> wrote: >> On 8 August 2017 at 10:12, Gregory P. Smith <g...@krypto.org> wrote: >> > I don't know whether it is beneficial or not - but having the capability to >> > build LTO without PGO seems reasonable. I can review any pull requests >> > altering configure.ac and Makefile.pre.in to make such a change. >> >> Being able to separate them seems useful even if it's just from the >> performance research perspective of comparing "PGO only", "LTO only" >> and "PGO+LTO". > > That does not mean "LTO only" deserves a configure option, though. PGO > is difficult to set up manually so it's fair that we provide dedicated > build support for it. LTO should just be a matter of tweaking CFLAGS > and LDFLAGS. > > Regards > > Antoine. > > > _______________________________________________ > Python-Dev mailing list > Python-Dev@python.org > https://mail.python.org/mailman/listinfo/python-dev > Unsubscribe: > https://mail.python.org/mailman/options/python-dev/victor.stinner%40gmail.com _______________________________________________ Python-Dev mailing list Python-Dev@python.org https://mail.python.org/mailman/listinfo/python-dev Unsubscribe: https://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com
