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Re: [patch] for PR15991


Hello,

> > 	PR tree-optimization/15991
> > 	* tree-cfg.c (tree_block_label): Export.
> > 	* tree-flow-inline.h (bsi_after_labels): New function.
> > 	* tree-flow.h (bsi_after_labels, tree_block_label): Declare.
> > 	* tree-ssa.c (propagate_into_addr): New function.
> > 	(replace_immediate_uses): Handle propagation of pointer constants.
> > 	(raise_value): Do not restrict propagation of pointer constants.
> > 	* tree-ssanames.c (duplicate_ssa_name): New function.
> > 	* tree.h (duplicate_ssa_name): Declare.
> > 
> OK, I guess.  I'm hoping that most of the propagation done in
> kill_redundant_phi_nodes won't be necessary after I'm done with the DOM
> changes.  This will serve as a yardstick to see what things I may be
> missing.
> 
> Didn't you also have some other improvement to k_r_p_n?

yes, a complete rewrite (the current ad-hoc algorithm is just a big
mistake of mine :-( ):

http://gcc.gnu.org/ml/gcc-patches/2004-04/msg00802.html

> What happened to it?

Got forgotten?

Zdenek


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