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 c3c7799e5608828e54f97a747812b065a2cb78fb..906826e0e5bd1ceb0144194081135e258f277451 100644 (file)
--- a/tools/bugpoint/ExtractFunction.cpp
+++ b/tools/bugpoint/ExtractFunction.cpp
@@ -335,6 +335,9 @@ Module *BugDriver::ExtractMappedBlocksFromModule(const
   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";
   }