diff options
Diffstat (limited to 'llvm/lib/Transforms/Utils')
| -rw-r--r-- | llvm/lib/Transforms/Utils/Local.cpp | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/llvm/lib/Transforms/Utils/Local.cpp b/llvm/lib/Transforms/Utils/Local.cpp index aedd787ecf8..a5e443fcf46 100644 --- a/llvm/lib/Transforms/Utils/Local.cpp +++ b/llvm/lib/Transforms/Utils/Local.cpp @@ -509,6 +509,11 @@ void llvm::MergeBasicBlockIntoOnlyPred(BasicBlock *DestBB, Pass *P) { PredBB->getTerminator()->eraseFromParent(); DestBB->getInstList().splice(DestBB->begin(), PredBB->getInstList()); + // If the PredBB is the entry block of the function, move DestBB up to + // become the entry block after we erase PredBB. + if (PredBB == &DestBB->getParent()->getEntryBlock()) + DestBB->moveAfter(PredBB); + if (P) { if (DominatorTreeWrapperPass *DTWP = P->getAnalysisIfAvailable<DominatorTreeWrapperPass>()) { |
