Don't mess up SCC traversal when a node has null edges out of it.
llvm-svn: 21536
This commit is contained in:
parent
37b6b097ff
commit
5965359d8f
|
@ -1430,11 +1430,12 @@ VisitForSCCs(const DSNode *N) {
|
|||
// Otherwise, check all successors.
|
||||
bool AnyDirectSuccessorsReachClonedNodes = false;
|
||||
for (DSNode::const_edge_iterator EI = N->edge_begin(), EE = N->edge_end();
|
||||
EI != EE; ++EI) {
|
||||
std::pair<unsigned, bool> &SuccInfo = VisitForSCCs(EI->getNode());
|
||||
if (SuccInfo.first < Min) Min = SuccInfo.first;
|
||||
AnyDirectSuccessorsReachClonedNodes |= SuccInfo.second;
|
||||
}
|
||||
EI != EE; ++EI)
|
||||
if (DSNode *Succ = EI->getNode()) {
|
||||
std::pair<unsigned, bool> &SuccInfo = VisitForSCCs(Succ);
|
||||
if (SuccInfo.first < Min) Min = SuccInfo.first;
|
||||
AnyDirectSuccessorsReachClonedNodes |= SuccInfo.second;
|
||||
}
|
||||
|
||||
if (Min != MyId)
|
||||
return ThisNodeInfo; // Part of a large SCC. Leave self on stack.
|
||||
|
|
Loading…
Reference in New Issue