[llvm-commits] [PATCH] Support for printing of graphs with stack-based nodes

[Ivan Llopard]

Hi,

I've been using GraphWriter and DOTGraphTraits to print a custom tree 
structure where nodes are stacked-based objects. Looking at the 
streaming of dot files, the pointer value of nodes is used to uniquely 
identify them.

ID=static_cast<const void*>(Node)

But this won't work for stack-based nodes. The attached patch add 
printing support of unique node identifiers in order to cover both use 
cases.
I would have preferred unsigned for the ID's type but unsigned<->const 
void* casts are not allowed. Please, could you review it ?

Ivan

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