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List:       pcc-list
Subject:    Re: perlbench benchmark results - gcc/pcc/pcc+ssa
From:       Anders Magnusson <ragge () ludd ! ltu ! se>
Date:       2011-08-18 19:37:59
Message-ID: 4E4D6A17.6080302 () ludd ! ltu ! se
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On 08/18/2011 09:02 PM, Roman Divacky wrote:
>> If you run some benchmarks then please try it without ssa also, to get
>> some comparisons.
> I tested a run with gcc4.2.1, pcc and pcc+ssa enabled. Plain pcc scored
> 50% of gcc4.2.1 performance, while adding ssa improved that to 53%.
>
> You can see the numbers here:
>
>          http://vlakno.cz/~rdivacky/perlbench-gcc421-pcc-pcc+ssa.html
>
> The first column is gcc, second pcc and third pcc+ssa.
Heh, interesting!  Hm, I have never added any target-specific matching to
optimize the amd64 code, maybe I should do that.  There are a bunch of
quite simple stuff that might improve the resulting assembler...

-- Ragge
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