[LLVMdev] Viewing graphs while debugging code under windows?

[Javier Martinez]

Hi Ether,

I work under Windows and am able to view graphs generated by LLVM. I 
haven't tried generating and viewing dog graphs while debugging but I 
hope this helps. What I do is to invoke llc.exe and pass a switch to 
generate the graph at the stage(s) you want to see (DAG combine, 
legalize, scheduling, etc), for example: llc.exe mykernel.ll 
-view-legalize-dags -f. The graphs are saved as .dot files in the user's 
temp directory in a randomly generated subdirectory name that starts 
with LLVM. I open the file using GVedit.exe and then click on run. I set 
the layout engine to 'dot' and the output file type to 'png'. The rest 
of the GVedit settings are the default. Click ok on the settings page 
and you're done. You should see a .png file in the temp directory.

Thanks,
Javier

On 11/30/2009 10:29 PM, ether zhhb wrote:
> hi eli,
>
> i delete the cache of cmake, and reconfigure the project, but
> HAVE_GRAPHVIZ still undefine. do you know what i should do? thanks
> very much.
>
> regards
> --ether
>
> On Tue, Dec 1, 2009 at 12:41 PM, Eli Friedman<eli.friedman at gmail.com>  wrote:
>    
>> On Mon, Nov 30, 2009 at 8:32 PM, ether zhhb<etherzhhb at gmail.com>  wrote:
>>      
>>> hi all,
>>>
>>> i just install gv and dotty for windows, but i cant see any way to
>>> configure it using cmake.
>>>
>>> is Viewing graphs under windows supported? and how could i configure it?
>>>        
>> LLVM doesn't use a specific search path to find the relevant
>> executables for that feature.  I don't see any obvious reason why it
>> shouldn't work as long as the relevant executables are available in
>> the PATH.
>>
>> -Eli
>>
>>      
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