Re: [tree-ssa] Update loop analysis 1/2

[Diego Novillo <dnovillo at redhat dot com>]

On Thu, 2003-07-31 at 11:55, Pop Sébastian wrote:
> On Thu, Jul 31, 2003 at 08:15:06AM -0400, Diego Novillo wrote:
> > 
> > Since you're cleaning up the CFG code, could you remove the AT_..._LEVEL
> > enums and replace them with cfghooks?  I think it will be cleaner in the
> > long run.
> > 
> The following patch removes the enum.  It bootstrapped on x86 with c,c++,f77.
> 
Hmm, no.  Sorry I didn't make myself clear.  What I intended was to not
have 'if (at_rtl_level)' in the generic functions.  I want the generic
functions to just call cfghooks for every CFG manipulation they want to
do.  This means filling up the tree_cfg_hooks structure in tree-cfg.c
and possibly adding new ones.

I don't know how difficult would this be, but there will be an ABI
change in several existing functions and we will possibly need to add
new hooks.


> What about adding a field "bb_ann_t *tree_ann;" to the basic_block structure
> and remove the "int num_latches;" as Jan suggested?
> 
That sounds like a good idea.


Diego.