Existing tree functionality?

[Kenneth Zadeck]

I hope to have my code checked in today. 
Look in ipa-reference.c

Kenny

Daniel Berlin wrote:
>Most of this can be found in the cgraph nodes.  The rest requires
>scanning the IL.
>
>Ken Zadeck should have code to do this.
>
>
>On Wed, 2005-07-06 at 08:32 -0400, Michael Tegtmeyer wrote:
>  
>>Hello,
>>
>>Is there existing functionality somewhere to sweep a function and collect 
>>all externally visible variables at the tree level or do I need to roll my 
>>own? I've looked in tree.h and grepped around as much as I could but I 
>>haven't found anything obvious.
>>
>>Thanks in advance,
>>Mike Tegtmeyer
>>