diff options
Diffstat (limited to 'llvm/lib/Transforms/Scalar/Scalarizer.cpp')
| -rw-r--r-- | llvm/lib/Transforms/Scalar/Scalarizer.cpp | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/llvm/lib/Transforms/Scalar/Scalarizer.cpp b/llvm/lib/Transforms/Scalar/Scalarizer.cpp index d55dc6a20a0..3b8307c4316 100644 --- a/llvm/lib/Transforms/Scalar/Scalarizer.cpp +++ b/llvm/lib/Transforms/Scalar/Scalarizer.cpp @@ -247,6 +247,7 @@ bool Scalarizer::doInitialization(Module &M) { } bool Scalarizer::runOnFunction(Function &F) { + assert(Gathered.empty() && Scattered.empty()); for (Function::iterator BBI = F.begin(), BBE = F.end(); BBI != BBE; ++BBI) { BasicBlock *BB = BBI; for (BasicBlock::iterator II = BB->begin(), IE = BB->end(); II != IE;) { @@ -636,7 +637,9 @@ bool Scalarizer::visitStoreInst(StoreInst &SI) { // Delete the instructions that we scalarized. If a full vector result // is still needed, recreate it using InsertElements. bool Scalarizer::finish() { - if (Gathered.empty()) + // The presence of data in Gathered or Scattered indicates changes + // made to the Function. + if (Gathered.empty() && Scattered.empty()) return false; for (GatherList::iterator GMI = Gathered.begin(), GME = Gathered.end(); GMI != GME; ++GMI) { |
