[tree-ssa]: Reduce size of phi nodes by 31 bits

[Richard Henderson]

On Mon, Dec 29, 2003 at 07:12:01PM -0500, Daniel Berlin wrote:
> -  int rewritten;
> +  unsigned int rewritten:1;
> 
>    struct phi_arg_d GTY ((length ("((tree)&%h)->phi.capacity"))) a[1];

You will note that this doesn't reduce the size of anything.
Just exchanges data for padding.


r~