Re: [wide-int] Reduce the size of the scratch arrays

[Kenneth Zadeck <zadeck at naturalbridge dot com>]

On 10/20/2013 06:30 AM, Richard Sandiford wrote:
> If yesterday's patch goes in, we'll only need the scratch array for
> HWI inputs.  We can therefore shrink it to 2 HWIs.
>
> Tested on x86_64-linux-gnu.  OK for wide-int?
>
> Thanks,
> Richard
>
>
> Index: gcc/wide-int.h
> ===================================================================
> --- gcc/wide-int.h	2013-10-19 20:08:15.571987579 +0100
> +++ gcc/wide-int.h	2013-10-19 20:09:12.299436972 +0100
> @@ -778,7 +778,7 @@ struct wide_int_ref_storage : public wi:
>   private:
>     /* Scratch space that can be used when decomposing the original integer.
>        It must live as long as this object.  */
> -  HOST_WIDE_INT scratch[WIDE_INT_MAX_ELTS];
> +  HOST_WIDE_INT scratch[2];
>   
>   public:
>     template <typename T>
we now allow partial int precisions that are any size.   this will break 
that.

kenny