Re: [Qemu-ppc] [Qemu-devel] [PATCH 01/14] target/ppc: remove getVSR()/putVSR() from fpu_helper.c

[Richard Henderson]

On 5/5/19 2:27 AM, Mark Cave-Ayland wrote:
> I've spent a bit of time today going through the functions and it seems that 
> all
> functions which have an xt parameter, minus a couple of the TEST macros, 
> require the
> result to be calculated in a local variable first.
> 
> I think the best solution is still to remove getVSR()/putVSR() but replace 
> them with
> macros for copying and zeroing like this:
> 
>     #define VSRCPY(d, s) (memcpy(d, s, sizeof(ppc_vsr_t)))
>     #define VSRZERO(d)   (memset(d, 0, sizeof(ppc_vsr_t)))

Local variable, yes.  But I see no reason for macros.

  ppc_vsr_t res = { };
  ...
  *xt = res;


r~