[PATCH] D support for RISC-V

Iain Buclaw ibuclaw@gdcproject.org
Wed Apr 10 16:32:00 GMT 2019

On Wed, 10 Apr 2019 at 01:58, Jim Wilson <jimw@sifive.com> wrote:
> On Tue, Apr 9, 2019 at 10:36 AM Iain Buclaw <ibuclaw@gdcproject.org> wrote:
> > Any objection if I upstream the non-asm bits?
> Doesn't all of it, except maybe the configure.tgt patch need to go
> upstream first?  And do you need some paperwork or button click from
> David for D language patches for the copyright assignment?

There is nothing to be signed, only the compiler front-end itself has
such a process in place.

> Is there a problem with the asm bits?  The fenv.h functions like
> fegetenv could be used for this, assuming you can include a C header
> file in D code.  But if this is the D language implementation of
> fenv.h, then you probably can't avoid the assembly code.

The asm syntax is specific to gdc, and there's not presently a policy
in place to upstream them (each module that contains deviations is
appropriately marked at the top of the file) .  Ideally asm bits
should be in separate modules, then it would just be a case of
swapping upstreams for our own.

The FloatingPointControl struct is more closely related to
fpu-control.h.  And no, you can't just include C headers from the D
compiler. that would make quite a lot of things simpler if it did.


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