111 /// Returns estimate for max latch taken count of the loop of the narrowest
112 /// available type. If the latch block has such estimate, it is returned.
114 /// type than latch check itself), which is still better than no estimate.
133   BasicBlock *Latch = L.getLoopLatch();  in parseLoopStructure()  local
134   assert(Latch && "Simplified loops only have one latch!");  in parseLoopStructure()
136   if (Latch->getTerminator()->getMetadata(ClonedLoopTag)) {  in parseLoopStructure()
141   if (!L.isLoopExiting(Latch)) {  in parseLoopStructure()
142     FailureReason = "no loop latch";  in parseLoopStructure()
153   BranchInst *LatchBr = dyn_cast<BranchInst>(Latch->getTerminator());  in parseLoopStructure()
155     FailureReason = "latch terminator not conditional branch";  in parseLoopStructure()
163     FailureReason = "latch terminator branch not conditional on integral icmp";  in parseLoopStructure()
169     FailureReason = "could not compute latch count";  in parseLoopStructure()
311       FailureReason = "unsigned latch conditions are explicitly prohibited";  in parseLoopStructure()
376       FailureReason = "unsigned latch conditions are explicitly prohibited";  in parseLoopStructure()
415   Result.Latch = Latch;  in parseLoopStructure()
522   // We start with a loop with a single latch:  in changeIterationSpaceEnd()
541   //    |       latch        >----------/  in changeIterationSpaceEnd()
576   //    |       latch        >------+   |     |                      |  in changeIterationSpaceEnd()
595   BasicBlock *BBInsertLocation = LS.Latch->getNextNode();  in changeIterationSpaceEnd()
656     NewPHI->addIncoming(PN.getIncomingValueForBlock(LS.Latch),  in changeIterationSpaceEnd()
666   // The latch exit now has a branch from `RRI.ExitSelector' instead of  in changeIterationSpaceEnd()
667   // `LS.Latch'.  The PHI nodes need to be updated to reflect that.  in changeIterationSpaceEnd()
668   LS.LatchExit->replacePhiUsesWith(LS.Latch, RRI.ExitSelector);  in changeIterationSpaceEnd()
891   /// - Max latch taken count of the loop is limited.  in run()