/// getGlobalVariable - Look up the specified global variable in the module
/// symbol table. If it does not exist, return null. The type argument
/// should be the underlying type of the global, i.e., it should not have
/// the top-level PointerType, which represents the address of the global.
/// If AllowInternal is set to true, this function will return types that
/// have InternalLinkage. By default, these types are not returned.
///
GlobalVariable *Module::getGlobalVariable(const std::string &Name,
bool AllowInternal) const {
if (Value *V = ValSymTab->lookup(Name)) {
GlobalVariable *Result = dyn_cast<GlobalVariable>(V);
if (Result && (AllowInternal || !Result->hasInternalLinkage()))
return Result;
}
return 0;
}
