diff options
Diffstat (limited to 'lib/Transforms/Scalar/LoopIndexSplit.cpp')
| -rw-r--r-- | lib/Transforms/Scalar/LoopIndexSplit.cpp | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/lib/Transforms/Scalar/LoopIndexSplit.cpp b/lib/Transforms/Scalar/LoopIndexSplit.cpp index c2e9d500a9..92a6058b5a 100644 --- a/lib/Transforms/Scalar/LoopIndexSplit.cpp +++ b/lib/Transforms/Scalar/LoopIndexSplit.cpp @@ -542,6 +542,11 @@ bool LoopIndexSplit::processOneIterationLoop(SplitInfo &SD) { if (!safeSplitCondition(SD)) return false; + BasicBlock *Latch = L->getLoopLatch(); + BranchInst *BR = dyn_cast<BranchInst>(Latch->getTerminator()); + if (!BR) + return false; + // Update CFG. // Replace index variable with split value in loop body. Loop body is executed @@ -549,11 +554,7 @@ bool LoopIndexSplit::processOneIterationLoop(SplitInfo &SD) { IndVar->replaceAllUsesWith(SD.SplitValue); // Remove Latch to Header edge. - BasicBlock *Latch = L->getLoopLatch(); BasicBlock *LatchSucc = NULL; - BranchInst *BR = dyn_cast<BranchInst>(Latch->getTerminator()); - if (!BR) - return false; Header->removePredecessor(Latch); for (succ_iterator SI = succ_begin(Latch), E = succ_end(Latch); SI != E; ++SI) { |