Rather than trying to gracefully handle input sequences with repeated
blocks, assert that this doesn't happen. We don't want to bother trying
to support this call pattern as it isn't necessary.
llvm-svn: 156167
diff --git a/llvm/lib/Transforms/Utils/CodeExtractor.cpp b/llvm/lib/Transforms/Utils/CodeExtractor.cpp
index 0178c33..4d82857 100644
--- a/llvm/lib/Transforms/Utils/CodeExtractor.cpp
+++ b/llvm/lib/Transforms/Utils/CodeExtractor.cpp
@@ -74,7 +74,7 @@
for (ArrayRef<BasicBlock *>::iterator I = BBs.begin(), E = BBs.end();
I != E; ++I) {
if (!Result.insert(*I))
- continue;
+ llvm_unreachable("Repeated basic blocks in extraction input");
if (!isBlockValidForExtraction(**I)) {
Result.clear();