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Re: [PATCH] Fix abuse of PENDING_STMTs by edge redirection, make it use a VEC instead of allocating a tree list


On Mon, 7 Jan 2008, Richard Guenther wrote:

> 
> This makes ssa_redirect_edge use a separate field in struct edge (memory
> usage on 64bit systems unchanged, as I packed fields better with
> mapped locations) to store removed PHI args.  With the testcase from
> PR34683 the top tree node allocation was performed by this function
> (for the build_tree_list call).
> 
> I don't have separate numers for this patch and this testcase (if you
> want, I can produce them), but I'm working on some "low-hanging fruit"

The patch in its current form doesn't help but even makes things
somewhat worse.  But I'm going to commit the struct edge_def field
re-ordering as obvious later.

Richard.


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