void TR::ILValidator::validityRule(Location &location, bool condition, const char *formatStr, ...)
{
if (!condition)
{
_isValidSoFar = false;
TR::Node *node = location.currentNode();
printDiagnostic("*** VALIDATION ERROR ***\nNode: %s n%dn\nMethod: %s\n", node->getOpCode().getName(), node->getGlobalIndex(), comp()->signature());
va_list args;
va_start(args, formatStr);
vprintDiagnostic(formatStr, args);
va_end(args);
printDiagnostic("\n");
FAIL();
}
}
void TR::ILValidator::updateNodeState(Location &newLocation)
{
TR::Node *node = newLocation.currentNode();
NodeState &state = _nodeStates[node];
if (node->getReferenceCount() == state._futureReferenceCount)
{
// First occurrence -- do some bookkeeping
//
if (node->getReferenceCount() == 0)
{
validityRule(newLocation, node->getOpCode().isTreeTop(), "Only nodes with isTreeTop opcodes can have refcount == 0");
}
else
{
_liveNodes.add(node);
}
}
if (_liveNodes.contains(node))
{
validityRule(newLocation, state._futureReferenceCount >= 1, "Node already has reference count 0");
if (--state._futureReferenceCount == 0)
{
_liveNodes.remove(node);
}
}
else
{
validityRule(newLocation, node->getOpCode().isTreeTop(), "Node has already gone dead");
}
if (isLoggingEnabled())
{
static const char *traceLiveNodesDuringValidation = feGetEnv("TR_traceLiveNodesDuringValidation");
if (traceLiveNodesDuringValidation && !_liveNodes.isEmpty())
{
traceMsg(comp(), " -- Live nodes: {");
char *separator = "";
for (LiveNodeWindow::Iterator lnwi(_liveNodes); lnwi.currentNode(); ++lnwi)
{
traceMsg(comp(), "%sn%dn", separator, lnwi.currentNode()->getGlobalIndex());
separator = ", ";
}
traceMsg(comp(), "}\n");
}
}
}