[LLVMdev] RFC: GLIBCXX_DEBUG ScheduleDAG Patch

David Greene dag at cray.com
Thu Dec 20 14:43:52 PST 2007


On Monday 17 December 2007 19:48, Chris Lattner wrote:
> On Mon, 17 Dec 2007, David Greene wrote:
> > On Monday 17 December 2007 13:39, Evan Cheng wrote:
> >> My only concern is the potential compile time impact. Do you see any?
> >
> > I don't notice any, but then I'm not particularly looking for that
> > either. I'll run some tests.
>
> Thanks.  5% slowdowns are generally not noticable, but we care :)

After some very simple testing, I see slowdowns of around 1.7%.  I assume
this is ok, but want to check.

> Re licensing, we have no problem slurping in boost code.  Please do make
> it follow the LLVM standards (80 cols and a doxygen comment above each
> class saying what it is for).  For an example of how to do the license,
> see include/llvm/ADT/scoped_ptr.h.

No problem.

                                       -Dave



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