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[LoopUnrollAndJam] Fixed null check after dereferencing warning. NFCI.

This commit is contained in:
Dávid Bolvanský 2019-11-03 20:02:54 +01:00
parent 505a44ae9c
commit 60cb193a40
1 changed files with 3 additions and 1 deletions
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4
llvm/lib/Transforms/Utils/LoopUnrollAndJam.cpp
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@ -177,6 +177,7 @@ LoopUnrollResult llvm::UnrollAndJamLoop(
// 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 @@ LoopUnrollResult llvm::UnrollAndJamLoop(
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);