Fix PR1797
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45736 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/tools/bugpoint/ExtractFunction.cpp b/tools/bugpoint/ExtractFunction.cpp
index c3c7799..906826e 100644
--- a/tools/bugpoint/ExtractFunction.cpp
+++ b/tools/bugpoint/ExtractFunction.cpp
@@ -335,6 +335,9 @@
for (std::vector<BasicBlock*>::const_iterator I = BBs.begin(), E = BBs.end();
I != E; ++I) {
BasicBlock *BB = *I;
+ // If the BB doesn't have a name, give it one so we have something to key
+ // off of.
+ if (!BB->hasName()) BB->setName("tmpbb");
BlocksToNotExtractFile << BB->getParent()->getName() << " "
<< BB->getName() << "\n";
}