This is the mail archive of the mailing list for the GCC project.

Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]
Other format: [Raw text]

Re: [RFC][PATCH] backport faster dominance info patch from tree-ssa

On Sun, 28 Dec 2003, Steven Bosscher wrote:
> I had hoped Zdenek's faster dominators patch for the tree-ssa branch
> would fix some loop optimizer problems (e.g. PR12780), so I backported
> that patch to mainline.
> Unfortunately it does not fix any PRs, but it does speed up the
> compiler somewhat (~49s down from ~51.5s (~5%) for Geralds PR8361
> testcase.
> Thoughts?

This is OK for mainline.  I'll stick my neck out and agree with both
you and Gerald that improving gcc 3.4 compile-time is both a bug-fix
and regression fix and is therefore suitable during current stage3.
I also appreciate that keeping this sort patch current can be major
headache, and so a speedy review is appropriate.

> Bootstrapped (c,c++,objc,f77) & regtested, of course.

Please also include the target-triple next time.  I'll sleep easier
at night :>

>         Backport from tree-ssa (relevant changes only):
>         2003-12-18  Zdenek Dvorak  <>

Many thanks to both you and Zdenek.


Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]