[cfe-dev] c++-analyzer slow down ?

[Anna Zaks]

On Jul 31, 2012, at 10:41 AM, John Smith wrote:

> On Tue, Jul 31, 2012 at 7:36 PM, Anna Zaks <ganna at apple.com> wrote:
>> John,
>> 
>> When did you start seeing this?
>> 
>> We've recently added experimental inter-procedural analyzes for C++, which would definitely explain the slowdown.
>> 
> Well I started a run of 'make all; make install; scan-build make' this
> morning, and when I came home this evening it was still running. I
> (thoughtlessly) terminated the process immediately, thinking something
> was wrong with my system. The installed clang version says it's 'clang
> version 3.2 (trunk 161033)'. The last run I did that didnt seem have
> this problem (at least not this excessive) was with 'clang version 3.2
> (trunk 160917) '
> 
John,

IPA was added several weeks ago. There is nothing we know of that would introduce a substantial slowdown, added in the last week.

Can you retest with TOT? Maybe some other memory hungry task was running at the same time on the machine?

Thanks,
Anna.

> Does that make sense ?
> 
> 
> Regards,
> 
> 
> john Smith.