void _doLoad(const std::string& name, AST_Name* node) {
int id = analysis->getStringIndex(name);
Status& status = statuses[id];
status.addUsage(Status::USED);
last_uses[id] = node;
}
void _doStore(const std::string& name) {
int id = analysis->getStringIndex(name);
Status& status = statuses[id];
status.addUsage(Status::DEFINED);
auto it = last_uses.find(id);
if (it != last_uses.end()) {
kills.insert(it->second);
last_uses.erase(it);
}
}
bool isKilledAt(AST_Name* node, bool is_live_at_end) {
if (kills.count(node))
return true;
// If it's not live at the end, then the last use is a kill
// even though we weren't able to determine that in a single
// pass
if (!is_live_at_end) {
auto it = last_uses.find(analysis->getStringIndex(node->id));
if (it != last_uses.end() && node == it->second)
return true;
}
return false;
}
void _doStore(const std::string& name) {
Status& status = statuses[analysis->getStringIndex(name)];
if (status == NONE)
status = KILLED;
}
void _doLoad(const std::string& name) {
Status& status = statuses[analysis->getStringIndex(name)];
if (status == NONE)
status = USED;
}
