diff options
| -rw-r--r-- | lib/Analysis/LoopInfo.cpp | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/lib/Analysis/LoopInfo.cpp b/lib/Analysis/LoopInfo.cpp index 20b470f..2860aa4 100644 --- a/lib/Analysis/LoopInfo.cpp +++ b/lib/Analysis/LoopInfo.cpp @@ -367,7 +367,8 @@ BasicBlock *Loop::getLoopPreheader() const { Out = *PI; } - // Make sure there is only one exit out of the preheader... + // Make sure there is only one exit out of the preheader. + assert(Out && "Header of loop has no predecessors from outside loop?"); succ_iterator SI = succ_begin(Out); ++SI; if (SI != succ_end(Out)) |