[LLVMdev] getScalarMap

[Ganesh Bikshandi]

Specifically we did the following:

	......
	DSGraph* DSG = getAnalysis<BUDataStructures>().getDSGraph( F );
	std::map< Value*, DSNodeHandle> scalarmap = DSG->getScalarMap();
	......

The scalarmap is always empty. I printed the size of the map which came
out to be zero always. But the getNodeForValue works correctly for the
same DSG, which means that the scalarmap cannot be empty. But we always
have an empty scalarmap being returned.


Thanks,
Ganesh

On Wed, 20 Nov 2002, Chris Lattner wrote:

> > I tried to used the getScalarMap function of the DSGraph to get the nodes
> > that the scalars point to in a function. But the getScalarMap returns a
> > null map always. Is there any problem in the getScalarMap function or is
> > there any "protocol" to be followed while using the function?
>
> DSGraph::getScalarMap returns a reference to the map, so this cannot be
> null.  Do you mean that all of the "entries" in the map are null?  If so,
> remember that DSGraphs are built in the context of some function (as
> indicated by hasFunction/getFunction), so only scalars in that context
> will be in the map...
>
> -Chris
>
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Graduate Research Assistant
Computer Science
University of Illinois, Champaign-Urbana