[llvm-commits] [llvm] r76615 - in /llvm/trunk: include/llvm/CodeGen/LiveIntervalAnalysis.h lib/CodeGen/LiveIntervalAnalysis.cpp

[Evan Cheng]

On Jul 23, 2009, at 4:19 PM, David Greene wrote:

> On Thursday 23 July 2009 17:59, Evan Cheng wrote:
>
>> From what I can tell, with llc -verbose-asm=false does *not* turn off
>> the line number comments.
>
> It seems to work for me here.  What revision are you running?

I always use tot.

>
>> I don't have time to do the experiment. But if you take a large
>> bitcode file, run llc on it and measure the time. And then do the  
>> same
>> experiment after backing out your changes, you should see a  
>> difference.
>
> I'll have to wait until nightly finishes to get a sufficiently large  
> bitcode
> file, I think.  I am certainly going to do the experiment.

Make sure you examine -O0 -regalloc=local compile time. That is the  
most affected one (and also the configuration where we care about  
compile time the most).

LLC compile:
multisource/Applications/ClamAV/clamscan: -36.23% (1.7056 => 2.3235)
multisource/Applications/JM/ldecod/ldecod: -39.66% (0.9846 => 1.3751)
multisource/Applications/JM/lencod/lencod: -44.91% (2.0477 => 2.9673)
multisource/Applications/SPASS/SPASS: -26.88% (2.6105 => 3.3121)
multisource/Applications/kimwitu++/kc: -27.08% (3.8236 => 4.8589)
multisource/Applications/oggenc/oggenc: -40.32% (0.5695 => 0.7991)

Evan

>
>                             -Dave
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