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Date:      Mon, 30 Jan 2023 19:38:22 +0000
From:      Brooks Davis <brooks@freebsd.org>
To:        Theron <theron.tarigo@gmail.com>
Cc:        ports@freebsd.org
Subject:   Re: lang/llvm15 -- Why is flang being built?
Message-ID:  <Y9gcrl1mA/2G%2BqTq@spindle.one-eyed-alien.net>
In-Reply-To: <0f73dc2a-370b-8c70-a300-1f36e8169e44@gmail.com>
References:  <Y9f3QaK%2BQ/O6KlAi@troutmask.apl.washington.edu> <CALH631m=XPMsNAAkOUM446mEFLf7rRwTnkEPK8qSM0eTDOYX6Q@mail.gmail.com> <Y9gOgWgQURbPeaz0@spindle.one-eyed-alien.net> <0f73dc2a-370b-8c70-a300-1f36e8169e44@gmail.com>

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On Mon, Jan 30, 2023 at 02:18:20PM -0500, Theron wrote:
> On 1/30/23 13:37, Brooks Davis wrote:
> > On Mon, Jan 30, 2023 at 09:17:07PM +0300, Gleb Popov wrote:
> >> On Mon, Jan 30, 2023 at 7:59 PM Steve Kargl
> >> <sgk@troutmask.apl.washington.edu> wrote:
> >>> % flang15 -o z a.f90
> >>> error: /usr/ports/devel/llvm15/work/llvm-project-15.0.7.src/flang/lib=
/Optimizer/CodeGen/Target.cpp:312: not yet implemented: target not implemen=
ted
> >>> % flang-new15 -o z a.f90
> >>> error: /usr/ports/devel/llvm15/work/llvm-project-15.0.7.src/flang/lib=
/Optimizer/CodeGen/Target.cpp:312: not yet implemented: target not implemen=
ted
> >>>
> >>> Inspection of Target.cpp shows that the word "FreeBSD"
> >>> does not appear anywhere.
> >>>
> >>> --
> >>> Steve
> >>>
> >> This was fixed shortly after the release, but Flang itself still isn't
> >> capable of producing working executables. It should probably be turned
> >> off for now.
> > I'll turn it off by default in llvm15 and the upcoming llvm16.
> >
> > -- Brooks
>=20
> with llvm-devel 16.0.d20230109 :
>=20
> % /usr/local/llvm-devel/bin/flang -o orbit orbit.f90?? -O3 -Wall -Wextra=
=20
> -Werror?? -L/usr/local/llvm-devel/lib -lFortran_main -lFortranRuntime=20
> -lFortranDecimal -lm
>=20
> produces a working executable for me, with results agreeing within 1ULP=
=20
> with those of the executable compiled by devel/flang (expired).??=20
> Performance is reasonable (though inferior, but this is only one test).
> Thus basic executable functionality, and at least one real world program=
=20
> work.?? I do not see a reason to omit flang from upcoming llvm16.

Excellent.  Thank you for the report.

-- Brooks



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