Functional dependencies are incorrect in presence of value analysis builtins
ID0000912: This issue was created automatically from Mantis Issue 912. Further discussion may take place here.
|ID0000912||Frama-C||Plug-in > from||public||2011-08-05||2014-01-28|
|Reporter||yakobowski||Assigned To||yakobowski||Resolution||no change required|
|Product Version||Frama-C Carbon-20110201||Target Version||-||Fixed in Version||-|
The value analysis does not require its builtins to compute their functional dependencies. As a result, the obtained results are wrong for those functions. This impacts indirectly the pdg and slicing plugins.
The signature of Db.Value.register_builtin should probably be changed to return the needed dependencies, in the same way that was done from clobbered sets. (This should also be done for inputs and outputs; a generic behavior would be nice.)