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Re: [tree-ssa] DCE with control dependence again (with numbers, for a change)
- From: law at redhat dot com
- To: "Zack Weinberg" <zack at codesourcery dot com>
- Cc: Steven Bosscher <s dot bosscher at student dot tudelft dot nl>, gcc-patches at gcc dot gnu dot org, aj at suse dot de, pinskia at physics dot uc dot edu
- Date: Fri, 16 Jan 2004 17:34:49 -0700
- Subject: Re: [tree-ssa] DCE with control dependence again (with numbers, for a change)
- Reply-to: law at redhat dot com
In message <87llo7ju9y.fsf@codesourcery.com>, "Zack Weinberg" writes:
>
>The level of testing being asked - and done - for this change is
>wildly out of proportion to the level of testing being done for other
>changes going onto the tree-ssa branch.
That's because we have already been down this design decision before.
Steven effectively wants to bring back code we threw out about 6 months
ago because it had some significant compile time performance concerns and
the increased complexity bought us nearly nothing in terms of generating
better code.
jeff