[llvm-commits] [llvm] r47167 - in /llvm/trunk: include/llvm/CodeGen/LiveInterval.h include/llvm/CodeGen/LiveIntervalAnalysis.h lib/CodeGen/LiveInterval.cpp lib/CodeGen/LiveIntervalAnalysis.cpp lib/CodeGen/SimpleRegisterCoalescing.cpp lib/CodeGen/SimpleRegisterCoalescing.h

[Chris Lattner]

Excellent!

-Chris

On Feb 15, 2008, at 11:48 AM, Evan Cheng wrote:

> It sped up the coalescer considerably. On kimwitu++:
>
> before:
> 0.7527 ( 12.8%)   0.0068 (  2.7%)   0.7596 ( 12.4%)   0.7591 ( 12.4%)
> Simple Register Coalescing
> now:
> 0.3062 (  5.6%)   0.0055 (  2.2%)   0.3117 (  5.5%)   0.3115 (  5.5%)
> Simple Register Coalescing
>
> Evan
>
> On Feb 15, 2008, at 11:19 AM, Chris Lattner wrote:
>
>>
>> On Feb 15, 2008, at 10:24 AM, Evan Cheng wrote:
>>
>>> Author: evancheng
>>> Date: Fri Feb 15 12:24:29 2008
>>> New Revision: 47167
>>>
>>> URL: http://llvm.org/viewvc/llvm-project?rev=47167&view=rev
>>> Log:
>>> - Removing the infamous r2rMap_ and rep() method. Now the coalescer
>>> will update
>>> register defs and uses after each successful coalescing.
>>> - Also removed a number of hacks and fixed some subtle kill
>>> information bugs.
>>
>> Very nice!  Is there any compile-time impact of this?  Does it speed
>> up coallescing/RA at all?
>>
>> -Chris
>> _______________________________________________
>> llvm-commits mailing list
>> llvm-commits at cs.uiuc.edu
>> http://lists.cs.uiuc.edu/mailman/listinfo/llvm-commits
>
> _______________________________________________
> llvm-commits mailing list
> llvm-commits at cs.uiuc.edu
> http://lists.cs.uiuc.edu/mailman/listinfo/llvm-commits