Hi,

I am missing some background information to follow what is being discussed 
here, so...

What is the PyPy speed difference after using gcc versus llvm for the 
compilation of the PyPy-c backend?

Would generating .ll instead of .c files really give any benefit?

More interesting would still be using llvm as a PyPy-jit-backend. Is there 
anything new in the llvm world that would make this feasible? There used to be 
various issues with our previous attempts of using llvm, as we know all to 
clearly. 

Eric


Op 8 sep. 2013 om 17:42 heeft Armin Rigo <ar...@tunes.org> het volgende 
geschreven:

> Hi Alex,
> 
> On Sun, Sep 8, 2013 at 5:33 PM, Alex Gaynor <alex.gay...@gmail.com> wrote:
>> LLVM also has a link time optimization, is it on by default in LLVM, or do
>> we need to benchmark with it enabled explicitly?
> 
> The point I made in my mail was that the llvm backend is written in a
> way that makes link-time optimizations unnecessary.  We could also not
> rely on "-flto" and instead write a single big .c file with the word
> "static" added everywhere.
> 
> 
> A bientôt,
> 
> Armin.
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