diff options
Diffstat (limited to 'llvm/lib/Transforms/Utils/LoopUnrollAndJam.cpp')
-rw-r--r-- | llvm/lib/Transforms/Utils/LoopUnrollAndJam.cpp | 15 |
1 files changed, 1 insertions, 14 deletions
diff --git a/llvm/lib/Transforms/Utils/LoopUnrollAndJam.cpp b/llvm/lib/Transforms/Utils/LoopUnrollAndJam.cpp index 07b5f20d4e6..cc80e11e4ac 100644 --- a/llvm/lib/Transforms/Utils/LoopUnrollAndJam.cpp +++ b/llvm/lib/Transforms/Utils/LoopUnrollAndJam.cpp @@ -754,20 +754,7 @@ bool llvm::isSafeToUnrollAndJam(Loop *L, ScalarEvolution &SE, DominatorTree &DT, // Check inner loop backedge count is consistent on all iterations of the // outer loop - auto CheckInnerLoopIterationCountInvariant = [](Loop *SubLoop, Loop *OuterL, - ScalarEvolution &SE) { - BasicBlock *SubLoopLatch = SubLoop->getLoopLatch(); - const SCEV *SubLoopBECountSC = SE.getExitCount(SubLoop, SubLoopLatch); - if (isa<SCEVCouldNotCompute>(SubLoopBECountSC) || - !SubLoopBECountSC->getType()->isIntegerTy()) - return false; - ScalarEvolution::LoopDisposition LD = - SE.getLoopDisposition(SubLoopBECountSC, OuterL); - if (LD != ScalarEvolution::LoopInvariant) - return false; - return true; - }; - if (!CheckInnerLoopIterationCountInvariant(SubLoop, L, SE)) { + if (!hasInvariantIterationCount(SubLoop, SE)) { LLVM_DEBUG(dbgs() << "Won't unroll-and-jam; Inner loop iteration count is " "not consistent on each iteration\n"); return false; |