On Tue, Apr 05, 2011 at 04:42:27PM +0200, Steven Bosscher wrote:
> On Tue, Apr 5, 2011 at 3:59 PM, Nathan Froyd <froy...@codesourcery.com> wrote:
> > v2, now with obstacks!
>
> @findex LOG_LINKS
> @item LOG_LINKS (@var{i})
> A list (chain of @code{insn_list} expressions) giving information about
> dependencies between instructions within a basic block. Neither a jump
> nor a label may come between the related insns. These are only used by
> the schedulers and by combine. This is a deprecated data structure.
> Def-use and use-def chains are now preferred.
So, being somewhat RTL-ignorant, is this patch going in the wrong
direction? Should combine be using DF instead of constructing
LOG_LINKS?
-Nathan
