Re: arm64 softfloat

[Andrei Borzenkov]

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.