A BB that unwind_to an "unwind" inst is that same as one that doesn't unwind_to
at all.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48096 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Transforms/Utils/SimplifyCFG.cpp b/lib/Transforms/Utils/SimplifyCFG.cpp
index 61da0d9..846c3bf 100644
--- a/lib/Transforms/Utils/SimplifyCFG.cpp
+++ b/lib/Transforms/Utils/SimplifyCFG.cpp
@@ -1370,7 +1370,7 @@
new UnwindInst(Pred); // Use unwind.
Changed = true;
}
- } else if (InvokeInst *II = dyn_cast<InvokeInst>(Pred->getTerminator()))
+ } else if (InvokeInst *II = dyn_cast<InvokeInst>(Pred->getTerminator())) {
if (II->getUnwindDest() == BB) {
// Insert a new branch instruction before the invoke, because this
// is now a fall through...
@@ -1388,6 +1388,9 @@
delete II;
Changed = true;
}
+ } else if (Pred->getUnwindDest() == BB) {
+ Pred->setUnwindDest(NULL);
+ }
Preds.pop_back();
}