[clang][dataflow] Support `StmtExpr` in `PropagateResultObject()`. (#88872)

This patch adds a test that assert-fails without the fix.

1 files changed, 5 insertions, 0 deletions

diff --git a/clang/lib/Analysis/FlowSensitive/DataflowEnvironment.cpp b/clang/lib/Analysis/FlowSensitive/DataflowEnvironment.cpp
index 3bf3807..f2b4a67 100644
--- a/clang/lib/Analysis/FlowSensitive/DataflowEnvironment.cpp
+++ b/clang/lib/Analysis/FlowSensitive/DataflowEnvironment.cpp
@@ -470,6 +470,11 @@ public:
       return;
     }
 
+    if (auto *SE = dyn_cast<StmtExpr>(E)) {
+      PropagateResultObject(cast<Expr>(SE->getSubStmt()->body_back()), Loc);
+      return;
+    }
+
     // All other expression nodes that propagate a record prvalue should have
     // exactly one child.
     SmallVector<Stmt *, 1> Children(E->child_begin(), E->child_end());