[LLVMdev] IR Passes and TargetTransformInfo: Straw Man

[Sean Silva]

On Mon, Jul 29, 2013 at 4:38 PM, Sean Silva <chisophugis at gmail.com> wrote:

>
>
>
> On Mon, Jul 29, 2013 at 4:24 PM, Hal Finkel <hfinkel at anl.gov> wrote:
>>
>> Out of curiosity, has anyone tried to optimize the pass ordering in some
>> (quasi-)automated way? Naively, a genetic algorithm seems like a perfect
>> fit for this.
>>
>
> This is the closest I've seen:
> http://donsbot.wordpress.com/2010/03/01/evolving-faster-haskell-programs-now-with-llvm/
>
>
> However, it deals with a "toy" example. Doing something similar over an
> entire benchmark suite would be interesting (and it may find non-obvious,
> highly-profitable interactions between passes that we aren't currently
> exploiting).
>
>
One more I saw recently:
http://gcc.gnu.org/wiki/cauldron2013?action=AttachFile&do=get&target=machine_guided_energy_energy_efficient_compilation.pdf

(it deals with LLVM and GCC, but focuses on "energy efficiency" and not raw
performance).
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