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Re: combine/dce patch for PR36003, PR42575
On Thu, Jun 24, 2010 at 2:53 PM, Eric Botcazou <ebotcazou@adacore.com> wrote:
>> Would you be opposed to adding a simpler, basic-block-local pass that
>> only tries to eliminate unnecessary operations on DImode subregs?
>
> The 3 words "adding a pass" always make me cringe. :-) ?Couldn't this be
> integrated into one of the existing RTL passes?
Byte DCE is also a separate pass, isn't it? The new pass would
(should) just replace it. Byte DCE never really worked anyway, and
*replacing* it with something simpler, instead of adding something
new, would be a good thing IMHO.
Ciao!
Steven