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Re: [PATCH] allocate combine.c:LOG_LINKS in an obstack


On Tue, Apr 5, 2011 at 3:59 PM, Nathan Froyd <froydnj@codesourcery.com> wrote:
> On Mon, Apr 04, 2011 at 02:49:54PM -0400, Nathan Froyd wrote:
>> This patch does just what $SUBJECT suggests.
>
> v2, now with obstacks!

Still one TODO in doc/rtl.texi:

@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.

Ciao!
Steven


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