diff options
| -rw-r--r-- | llvm/lib/Transforms/Scalar/CodeGenPrepare.cpp | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/llvm/lib/Transforms/Scalar/CodeGenPrepare.cpp b/llvm/lib/Transforms/Scalar/CodeGenPrepare.cpp index 604e791e27c..75ac4d81af7 100644 --- a/llvm/lib/Transforms/Scalar/CodeGenPrepare.cpp +++ b/llvm/lib/Transforms/Scalar/CodeGenPrepare.cpp @@ -331,7 +331,7 @@ void CodeGenPrepare::EliminateMostlyEmptyBlock(BasicBlock *BB) { // The PHIs are now updated, change everything that refers to BB to use // DestBB and remove BB. BB->replaceAllUsesWith(DestBB); - if (DT) { + if (DT && !UpdateDT) { BasicBlock *BBIDom = DT->getNode(BB)->getIDom()->getBlock(); BasicBlock *DestBBIDom = DT->getNode(DestBB)->getIDom()->getBlock(); BasicBlock *NewIDom = DT->findNearestCommonDominator(BBIDom, DestBBIDom); @@ -534,7 +534,8 @@ bool CodeGenPrepare::OptimizeCallInst(CallInst *CI) { // happens. WeakVH IterHandle(CurInstIterator); - ReplaceAndSimplifyAllUses(CI, RetVal, TLI ? TLI->getTargetData() : 0, DT); + ReplaceAndSimplifyAllUses(CI, RetVal, TLI ? TLI->getTargetData() : 0, + UpdateDT ? 0 : DT); // If the iterator instruction was recursively deleted, start over at the // start of the block. |
