/**
* In pass_1(validateRefCountPass1), the Local Index (which is set to the Ref
* Count) for each child is decremented for each visit. The second pass is to
* make sure that the Local Index is zero by the end of the block. A non-zero
* Local Index would indicate that the Ref count was wrong at the start
* of the Validation Process.
*/
void TR::ValidateNodeRefCountWithinBlock::validateRefCountPass1(TR::Node *node)
{
/* If this is the first time through this node, verify the children. */
if (!_nodeChecklist.isSet(node->getGlobalIndex()))
{
_nodeChecklist.set(node->getGlobalIndex());
for (int32_t i = node->getNumChildren() - 1; i >= 0; --i)
{
TR::Node *child = node->getChild(i);
if (_nodeChecklist.isSet(child->getGlobalIndex()))
{
/* If the child has already been visited, decrement its verifyRefCount. */
child->decLocalIndex();
}
else
{
/* If the child has not yet been visited, set its localIndex and visit it. */
child->setLocalIndex(child->getReferenceCount() - 1);
validateRefCountPass1(child);
}
}
}
}
