Mark the SCC as "might unwind" if we run into a 'resume' instruction.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137627 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Transforms/IPO/PruneEH.cpp b/lib/Transforms/IPO/PruneEH.cpp
index b7e63dc..cbb80f0 100644
--- a/lib/Transforms/IPO/PruneEH.cpp
+++ b/lib/Transforms/IPO/PruneEH.cpp
@@ -101,8 +101,9 @@
// Check to see if this function performs an unwind or calls an
// unwinding function.
for (Function::iterator BB = F->begin(), E = F->end(); BB != E; ++BB) {
- if (CheckUnwind && isa<UnwindInst>(BB->getTerminator())) {
- // Uses unwind!
+ if (CheckUnwind && (isa<UnwindInst>(BB->getTerminator()) ||
+ isa<ResumeInst>(BB->getTerminator()))) {
+ // Uses unwind / resume!
SCCMightUnwind = true;
} else if (CheckReturn && isa<ReturnInst>(BB->getTerminator())) {
SCCMightReturn = true;