[LLVMdev] question

[Xiaodong Li]

Thanks Bill. One more question, when I use the DSNode iterator to
traverse a node's children. The return value of I.getNode() can only
be 'const DSNode *', I cannot use 'DSNode *' type. So as a result, I
always get error message like this:

MemLeakage.cpp:159: invalid conversion from `const DSNode*' to `DSNode*'
MemLeakage.cpp:159:   initializing argument 1 of `void
   <unnamed>::GlobalMemLeakage::KillSetInsert(DSNode*, BBsets&)'

How to use a 'Node *' type iterator? Or is there any other way to traverse
the DSGraph?

thanks,
Jerry

On Sat, 16 Nov 2002, Bill? Wendling wrote:

> Also sprach Xiaodong Li:
> }
> } When I tried to compile the program, I got this error:
> }
> } ../../../include/llvm/Analysis/DSGraph.h: In member function `virtual bool
> }    <unnamed>::GlobalMemLeakage::run(Module&)':
> } ../../../include/llvm/Analysis/DSGraph.h:38: `void
> } DSGraph::operator=(const
> }    DSGraph&)' is private
> } MemLeakage.cpp:87: within this context
> } gmake: *** [Debug/MemLeakage.o] Error 1
> }
> } I don't understand what this means. Basically what I did is I defined:
> } map<Function *, DSGraph> funsetmap;
> } and I was trying to assign the DSGraph for each function to the map.
> } funsetmap[&F] = dsg;
> } Could you tell me what's wrong how to fix this?
> }
> You're invoking the copy constructor in this code snippet:
>
>     funsetmap[&F] = dsg;
>
> That is, the copy constructor for dsg (which I take to be a DSGraph
> object). Ways around this:
>
>     - Store a pointer to DSGraph instead of the DSGraph object. So
>       something like this:
>
>         map<Function *, DSGraph *> funsetmap;
>
>         // code
>
>         funsetmap[&F] = &dsg;
>
>       You have to be careful not to store local variables and pass them
>       back from a function, of course.
>
>     - Create a wrapper class for DSGraph and have its copy constructor
>       clone the DSGraph object for you. This way is a bit more
>       complicated and might not really be necessary for what you need to
>       do though...
>
> --
> || Bill Wendling           "A computer without a Microsoft operating
> || wendling at isanbard.org    system is like a dog without bricks tied
> ||                          to its head."   -- Anonymous
>