[cfe-dev] PCRE compiles fines and passes the test suite :)

[Steve Naroff]

Makes sense. It would still be good to have numbers to verify...

Since GCC doesn't do IPO by default, it would be useful to have an  
"apples to apples" comparison.

I want to make sure clang stays competitive (in terms of compile  
time)...

snaroff

On Jan 30, 2008, at 2:13 PM, Sanghyeon Seo wrote:

> 2008/1/30, Steve Naroff <snaroff at apple.com>:
>> On Jan 30, 2008, at 8:57 AM, Nuno Lopes wrote:
>>> Although llvm is much slower at compiling (the linking part seems  
>>> to be
>>> really slow due to the -O2 optimizations), the binary produced is  
>>> much
>>> faster :)
>>
>> This doesn't makes sense to me. Are you using an optimized "release"
>> version of clang?
>>
>> If so, can you compile/measure with -fsyntax-only?
>
> I believe all time is spent in "llvm-ld -O2", which does the
> interprocedual optimization IIRC.
>
> -- 
> Seo Sanghyeon