[LoopUnrollAndJam] Fixed null check after dereferencing warning. NFCI.
diff --git a/llvm/lib/Transforms/Utils/LoopUnrollAndJam.cpp b/llvm/lib/Transforms/Utils/LoopUnrollAndJam.cpp
index bf2e87b..b347b7b 100644
--- a/llvm/lib/Transforms/Utils/LoopUnrollAndJam.cpp
+++ b/llvm/lib/Transforms/Utils/LoopUnrollAndJam.cpp
@@ -177,6 +177,7 @@
// When we enter here we should have already checked that it is safe
BasicBlock *Header = L->getHeader();
+ assert(Header && "No header.");
assert(L->getSubLoops().size() == 1);
Loop *SubLoop = *L->begin();
@@ -247,8 +248,9 @@
BasicBlock *Preheader = L->getLoopPreheader();
BasicBlock *LatchBlock = L->getLoopLatch();
+ assert(Preheader && "No preheader");
+ assert(LatchBlock && "No latch block");
BranchInst *BI = dyn_cast<BranchInst>(LatchBlock->getTerminator());
- assert(Preheader && LatchBlock && Header);
assert(BI && !BI->isUnconditional());
bool ContinueOnTrue = L->contains(BI->getSuccessor(0));
BasicBlock *LoopExit = BI->getSuccessor(ContinueOnTrue);