diff options
Diffstat (limited to 'clang/lib/CodeGen/CGCall.cpp')
| -rw-r--r-- | clang/lib/CodeGen/CGCall.cpp | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/clang/lib/CodeGen/CGCall.cpp b/clang/lib/CodeGen/CGCall.cpp index 6a1d549..ec28c1d 100644 --- a/clang/lib/CodeGen/CGCall.cpp +++ b/clang/lib/CodeGen/CGCall.cpp @@ -3461,8 +3461,9 @@ static llvm::StoreInst *findDominatingStoreToReturnValue(CodeGenFunction &CGF) { // single-predecessors chain from the current insertion point. llvm::BasicBlock *StoreBB = store->getParent(); llvm::BasicBlock *IP = CGF.Builder.GetInsertBlock(); + llvm::SmallPtrSet<llvm::BasicBlock *, 4> SeenBBs; while (IP != StoreBB) { - if (!(IP = IP->getSinglePredecessor())) + if (!SeenBBs.insert(IP).second || !(IP = IP->getSinglePredecessor())) return nullptr; } |