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Re: arm64 softfloat


From: Vladimir 'phcoder' Serbinenko
Subject: Re: arm64 softfloat
Date: Wed, 3 Jun 2015 20:12:02 +0200

Ok with me as well. Go ahead

On Jun 3, 2015 8:10 PM, "Andrei Borzenkov" <address@hidden> wrote:
В Wed, 3 Jun 2015 17:52:12 +0100
Leif Lindholm <address@hidden> пишет:

> > >
> > > https://gcc.gnu.org/onlinedocs/gcc/AArch64-Options.html
> > > ---
> > > Generate code which uses only the general registers.
> > > ---
> >
> > Sure, I know this. Unfortunately it does not say how it is related to
> > floating point arithmetic at all. armclang at least makes it explicit.
>
> While it could more explicit, I am not aware of any A64 floating-point
> instructions that can operate without floating-point registers.
>
> Also, I spoke with the ARM gcc devs - the gcc documentation is
> intended to be improved to also state that "-mgeneral-regs-only is
> equivalent to +nofp being specified".
>


Sounds like it is OK then.

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