diff options
Diffstat (limited to 'llvm/lib/Transforms/Utils/LoopPeel.cpp')
| -rw-r--r-- | llvm/lib/Transforms/Utils/LoopPeel.cpp | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/llvm/lib/Transforms/Utils/LoopPeel.cpp b/llvm/lib/Transforms/Utils/LoopPeel.cpp index 1600710..32c2427 100644 --- a/llvm/lib/Transforms/Utils/LoopPeel.cpp +++ b/llvm/lib/Transforms/Utils/LoopPeel.cpp @@ -161,7 +161,8 @@ static Optional<unsigned> calculateIterationsToInvariance( // by an exit condition. Returns the number of iterations to peel off (at the // moment either 0 or 1). static unsigned peelToTurnInvariantLoadsDerefencebale(Loop &L, - DominatorTree &DT) { + DominatorTree &DT, + AssumptionCache *AC) { // Skip loops with a single exiting block, because there should be no benefit // for the heuristic below. if (L.getExitingBlock()) @@ -202,7 +203,7 @@ static unsigned peelToTurnInvariantLoadsDerefencebale(Loop &L, if (auto *LI = dyn_cast<LoadInst>(&I)) { Value *Ptr = LI->getPointerOperand(); if (DT.dominates(BB, Latch) && L.isLoopInvariant(Ptr) && - !isDereferenceablePointer(Ptr, LI->getType(), DL, LI, nullptr, &DT)) + !isDereferenceablePointer(Ptr, LI->getType(), DL, LI, AC, &DT)) for (Value *U : I.users()) LoadUsers.insert(U); } @@ -358,7 +359,8 @@ static bool violatesLegacyMultiExitLoopCheck(Loop *L) { void llvm::computePeelCount(Loop *L, unsigned LoopSize, TargetTransformInfo::PeelingPreferences &PP, unsigned TripCount, DominatorTree &DT, - ScalarEvolution &SE, unsigned Threshold) { + ScalarEvolution &SE, AssumptionCache *AC, + unsigned Threshold) { assert(LoopSize > 0 && "Zero loop size is not allowed!"); // Save the PP.PeelCount value set by the target in // TTI.getPeelingPreferences or by the flag -unroll-peel-count. @@ -429,7 +431,7 @@ void llvm::computePeelCount(Loop *L, unsigned LoopSize, countToEliminateCompares(*L, MaxPeelCount, SE)); if (DesiredPeelCount == 0) - DesiredPeelCount = peelToTurnInvariantLoadsDerefencebale(*L, DT); + DesiredPeelCount = peelToTurnInvariantLoadsDerefencebale(*L, DT, AC); if (DesiredPeelCount > 0) { DesiredPeelCount = std::min(DesiredPeelCount, MaxPeelCount); |