[cfe-dev] -parse-ast-view

[Chris Lattner]

On Sep 19, 2007, at 5:24 PM, Chris Lattner wrote:

> FYI, with Ted's latest changes, we can now use -parse-ast-view to  
> look at ASTs.  If you have graphviz set up right, you should see  
> something like this:

BTW, in order for this to work, you have to have dot or Graphviz  
installed correctly, instructions are here:
http://llvm.org/docs/ProgrammersManual.html#ViewGraph

One of the nice things about this is that you can just use things  
like "call S->viewAST()" in GDB and a window pops up with the  
subgraph for S.

-Chris

>
> <pastedGraphic.png>
>
> for
>
> void foo(int *P, int N) {
>   for (int i = 0; i != N; ++i)
>     P[i] = N;
> }
>
> nifty!
>
> Over time, more info will be added to the nodes.
>
> -Chris