Date: Sun, 15 Nov 2015 22:15:46 +0100 From: Tijl Coosemans <tijl@FreeBSD.org> To: Gerald Pfeifer <gerald@pfeifer.com> Cc: Anton Shterenlikht <mexas@bris.ac.uk>, fortran@freebsd.org Subject: Re: advice on gfortran options for a port Message-ID: <20151115221546.35739522@kalimero.tijl.coosemans.org> In-Reply-To: <alpine.LSU.2.20.1511151644270.4990@anthias> References: <201507270953.t6R9riEg096211@mech-as222.men.bris.ac.uk> <20150729200307.5df26a3e@kalimero.tijl.coosemans.org> <alpine.LSU.2.20.1511151644270.4990@anthias>
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On Sun, 15 Nov 2015 20:43:21 +0100 (CET) Gerald Pfeifer <gerald@pfeifer.com> wrote: > On Wed, 29 Jul 2015, Tijl Coosemans wrote: >>> Trying to build (with gfortran48 to gfortran6) I get: >>> >>> f951: sorry, unimplemented: Graphite loop optimizations cannot be used (ISL is not available)(-fgraphite, -fgraphite-identity, -floop-block, -floop-interchange, -floop-strip-mine, -floop-parallelize-all, -floop-unroll-and-jam, and -ftree-loop-linear) >>> >>> Are these not implemented on BSD? >>> I wonder how they build with GCC with these flags? >>> >>> Anyway, should I leave all these flags, and -ggdb in the port? >>> Or should I use the default ports tree FFLAGS instead? >> It seems that gcc needs to be configured with --with-isl to enable >> Graphite. Gerald, can this be enabled in the gcc ports? > > I just committed a patch to lang/gcc6-devel that adds a new option > GRAPHITE which enables support for Graphite loop optimizations and > am looking into pushing this back into the gcc5-devel and later > gcc5 ports. > > Since this pulls in libisl as an additional dependency and I have > only seen two requests for this (including yours) so far, I'm a > little hesitant to make enable this option by default. > > What do you think? (Patch below.) If upstream disables it by default it's ok to keep the port option disabled by default too.
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