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5e17ee1e35
I intend to improve the analyzer's bug reports by tracking condition expressions. 01 bool b = messyComputation(); 02 int i = 0; 03 if (b) // control dependency of the bug site, let's explain why we assume val 04 // to be true 05 10 / i; // warn: division by zero I'll detail this heuristic in the followup patch, strictly related to this one however: * Create the new ControlDependencyCalculator class that uses llvm::IDFCalculator to (lazily) calculate control dependencies for Clang's CFG. * A new debug checker debug.DumpControlDependencies is added for lit tests * Add unittests Differential Revision: https://reviews.llvm.org/D62619 llvm-svn: 365197