[ORC] Assert that ExecutionSession is still open when JITDylibs are created.

diff --git a/llvm/lib/ExecutionEngine/Orc/Core.cpp b/llvm/lib/ExecutionEngine/Orc/Core.cpp
index 1926d60ac015fe1e78f9bb61b3e24e57b73ee2a5..2d9eed1e51e976e188da665dc09c010555509945 100644 (file)
--- a/llvm/lib/ExecutionEngine/Orc/Core.cpp
+++ b/llvm/lib/ExecutionEngine/Orc/Core.cpp
@@ -1960,6 +1960,7 @@ JITDylib *ExecutionSession::getJITDylibByName(StringRef Name) {
 JITDylib &ExecutionSession::createBareJITDylib(std::string Name) {
   assert(!getJITDylibByName(Name) && "JITDylib with that name already exists");
   return runSessionLocked([&, this]() -> JITDylib & {
+    assert(SessionOpen && "Cannot create JITDylib after session is closed");
     JDs.push_back(new JITDylib(*this, std::move(Name)));
     return *JDs.back();
   });