[LLVMdev] [RFC] 3-bit Waymarking

Chris Lattner clattner at apple.com
Tue Apr 22 09:15:08 PDT 2014


On Apr 22, 2014, at 7:28 AM, Gabor Greif <ggreif at gmail.com> wrote:

> Hi devs,
> 
> after my intentionally "playful" EuroLLVM presentation (*) I think it
> would be time to get serious about merging to ToT. But we should
> probably find out whether an optimized algorithm is desired at all.
> 
> So I'd solicit comments from the code owners (Use.{h,cpp}) and anybody
> who is interested. For closer scrutiny, the code is here:
> <http://llvm.org/viewvc/llvm-project/llvm/branches/ggreif/waymark-64-new/>
> 
> I do not have the equipment to perform a compile-time measurement. How
> do folks benchmark for this nowadays? Is it a viable alternative to
> bring the changes to ToT and compare speedups/slowdowns in the nightly
> builds retrospectively?

I saw the slides, it looks very interesting.  Have you actually measured any memory wins from this?

-Chris



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