[tree-ssa] garbage collectable CFG

[Richard Henderson]

On Mon, Dec 08, 2003 at 01:28:02AM +0100, Steven Bosscher wrote:
> !   union edge_def_insns {
> !     rtx GTY ((tag ("1"))) r;
> !     tree GTY ((tag ("2"))) t;
> !   } GTY ((desc ("cfg_hooks == &rtl_cfg_hooks ? 1 : cfg_hooks == &tree_cfg_hooks ? 2 : 0"),
> !           descbits ("2"))) insns;

Not quite true.  There are two sets of rtl hooks.  Just make
it tree or rtl.

Otherwise ok.


r~