The goal is to find code like the example below, which is likely a typo
where someone meant to write "if (*b)".
bool *b = SomeFunction();
if (b) {
// b never dereferenced
}
This checker naturally has a relatively high false positive rate so it
applies some heuristics to avoid cases where the pointer is checked for
nullptr before being written.
Differential Revision: http://reviews.llvm.org/D4458
llvm-svn: 212797
Benjamin Kramer