static Function*
resolveFunction(Module& M, StringRef name)
{
Function* f = M.getFunction(name);
if (f != NULL)
return f;
GlobalAlias* ga = M.getNamedAlias(name);
if (ga != NULL) {
const GlobalValue* v = ga->resolveAliasedGlobal(true);
f = dyn_cast<Function>(const_cast<GlobalValue*>(v));
if (f != NULL) {
errs() << "Resolved alias " << name << " to " << f->getName() << "\n";
return f;
}
}
return NULL;
}