// queue. This allows LoopPass to change loop nest for the loop. This
// utility may send LPPassManager into infinite loops so use caution.
void redoLoop(Loop *L);
+
+private:
+ /// verifyLoopInfo - Verify loop nest.
+ void verifyLoopInfo();
+
private:
std::deque<Loop *> LQ;
bool skipThisLoop;
Info.setPreservesAll();
}
+/// verifyLoopInfo - Verify loop nest.
+void LPPassManager::verifyLoopInfo() {
+ assert (LI && "Loop Info is missing");
+
+ for (LoopInfo::iterator I = LI->begin(), E = LI->end(); I != E; ++I) {
+ Loop *L = *I;
+ assert (L->getHeader() && "Loop header is missing");
+ assert (L->getLoopPreheader() && "Loop preheader is missing");
+ assert (L->getLoopLatch() && "Loop latch is missing");
+ }
+}
+
/// run - Execute all of the passes scheduled for execution. Keep track of
/// whether any of the passes modifies the function, and if so, return true.
bool LPPassManager::runOnFunction(Function &F) {
LoopPass *LP = dynamic_cast<LoopPass *>(P);
assert (LP && "Invalid LPPassManager member");
LP->runOnLoop(CurrentLoop, *this);
+ verifyLoopInfo();
StopPassTimer(P);
if (Changed)
LPPM->add(this);
}
-