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Re: [PATCH] Conditionally turn off cfg cleanup for PHI-OPT if nothing is done
On 03/03/06 14:17, Devang Patel wrote:
> If cleanup_cfg() is smart and if it does not start walking blocks
> unless cfg was manipulated then there is no need to worry about
> unnecessary TODO_cleanup_cfg flags. They cost more or less as much as
> empty call at compile time.
>
OK, if you have a scheme by which cleanup_cfg can determine whether it
needs to run, without context information and without walking the CFG,
I'm all ears.