[cfe-dev] Is there a way to let the AST matcher run on multiple files in parallel?

[Han Wang]

Hi Manuel,

That I have the compilation database already. :)

Let's say we have a simple case with only 2 source files (test1.cc and
test2.cc). We also have the compilation database for these 2 files. And we
have the AST matcher tool up and running. Normally I'd run
./matchertool.out test1.cc test2.cc to do the refactoring. To make the
analyzing of the 2 files running in parallel, what shall we do next?

Thanks!
Best regards,
Han

On Wed, Jul 22, 2015 at 2:29 PM, Manuel Klimek <klimek at google.com> wrote:

> Those are not 2 options. You'll want to have both :)
> You need the compilation database so the tool only needs the source file
> to run.
>
> On Wed, Jul 22, 2015 at 2:27 PM Han Wang <wanghan02 at gmail.com> wrote:
>
>> Hi Manuel,
>>
>> Thank you for your answer. The goal is to do refactoring to the project
>> and apply the replacements to the original files. For the option (a), could
>> you describe more specifically how to do it? Thanks. I checked the run
>> function of clang::tooling::ClangTool, but it's just a for loop over all
>> the source files.
>>
>> Best regards,
>> Han
>>
>> On Wed, Jul 22, 2015 at 12:33 PM, Manuel Klimek <klimek at google.com>
>> wrote:
>>
>>> You can use
>>> a) a compilation database
>>> b) find . -name '*.cc' |xargs -n1 -P32
>>> depending on the output data you want to produce, you'll need to pass an
>>> additional flag to your tool to get the shard number...
>>>
>>> On Tue, Jul 21, 2015 at 6:20 PM Han Wang <wanghan02 at gmail.com> wrote:
>>>
>>>> Hi all,
>>>>
>>>> Is there a way to let the AST matcher run on multiple files in
>>>> parallel? I'm working on Mac. I have some old windows code which may slow
>>>> down the compiling time (maybe for some other reasons I don't know
>>>> exactly). So this makes it necessary for me to analyze each translation
>>>> unit in parallel.
>>>>
>>>> At the moment I have only one mac which has 32 cores. I can live with
>>>> that if it could be fully parallel.
>>>>
>>>> Thanks!
>>>> Best regards,
>>>> Han
>>>>
>>>> _______________________________________________
>>>> cfe-dev mailing list
>>>> cfe-dev at cs.uiuc.edu
>>>> http://lists.cs.uiuc.edu/mailman/listinfo/cfe-dev
>>>>
>>>
>>
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