[cfe-dev] Parsing benchmark: LibTomMath

[Steve Naroff]

On Nov 17, 2007, at 2:22 PM, Chris Lattner wrote:
>
> For user time, it is hard to guess what the difference is.  Is this
> source code available to use for timings?  I'd be interested to see
> where clang is spending all its time: your cfe is almost 2x faster,
> which points to us doing something pretty braindead :)
>

Chris,

I think it would be great to learn from cfe, but it needs to be in  
harmony with our goals.

Without knowing the architecture of Neil's cfe, it's really hard to  
say we're doing anything braindead (though it's always great to find  
"low hanging fruit"-:). For example, the "Tiny C Compiler" is reported  
to compile/assemble/link 9x faster than GCC. While this is great, it's  
clearly not an architecture that is interesting to us. clang is the  
most highly "layered" front-end I've ever worked on (clang is the 5th  
C-based front-end I've had the pleasure to work on). While layering  
opens up a world of possibilities, it has a cost.

snaroff

> -Chris
>
> _______________________________________________
> cfe-dev mailing list
> cfe-dev at cs.uiuc.edu
> http://lists.cs.uiuc.edu/mailman/listinfo/cfe-dev