[LLVMdev] RFC: GLIBCXX_DEBUG ScheduleDAG Patch
evan.cheng at apple.com
Sat Dec 22 00:33:04 PST 2007
On Dec 20, 2007, at 2:43 PM, David Greene wrote:
> 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
>>> 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
> this is ok, but want to check.
Can you clarify? Is this 1.7% slowdown of scheduling time or overall
codegen time? If it's the later, then it seems a bit too much. Also,
please test it with all the MultiSource/Applications.
>> 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
>> class saying what it is for). For an example of how to do the
>> see include/llvm/ADT/scoped_ptr.h.
> No problem.
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