[llvm-commits] [LLVM, opt, LoopUnswitch] Compile-time improvements.

[Stepan Dyatkovskiy]

Ping. 
-Stepan

03.01.2012, 22:50, "Stepan Dyatkovskiy" <STPWORLD at narod.ru>:
> Ping.
> -Stepan.
>
> 02.01.2012, 13:53, "Stepan Dyatkovskiy" <STPWORLD at narod.ru>:
>
>>  ping.
>>  -Stepan.
>>
>>  30.12.2011, 16:14, "Stepan Dyatkovskiy" <stpworld at narod.ru>:
>>>   Hi. A made some fixes that improves compile-time:
>>>
>>>   1. Size heuristics changed. Now we calculate number of unswitching
>>>   branches only once per loop.
>>>   2. Some checks was moved from UnswitchIfProfitable to
>>>   processCurrentLoop, since it is not changed during processCurrentLoop
>>>   iteration. It allows decide to skip some loops at an early stage.
>>>
>>>   I checked the compile-time on test
>>>
>>>   MultiSource/Benchmarks/Prolangs-C++/shapes/shapes
>>>   (there was compile time regression after my previous patch).
>>>
>>>   Relative to my previous patch the compile-time improved on ~8.5%. Relative
>>>   to old revisions (before r146578) the compile time is improved on ~2%.
>>>
>>>   Please find the patch in attachment for review.
>>>
>>>   -Stepan.
>>>
>>>   _______________________________________________
>>>   llvm-commits mailing list
>>>   llvm-commits at cs.uiuc.edu
>>>   http://lists.cs.uiuc.edu/mailman/listinfo/llvm-commits