Add null check in CursorVisitor::RunVisitorWorkList() when visiting LabelDecls. Fixes <rdar://problem/9040579>.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126304 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 6 insertions, 4 deletions

diff --git a/tools/libclang/CIndex.cpp b/tools/libclang/CIndex.cpp
index e2882953c0..328ea62f3b 100644
--- a/tools/libclang/CIndex.cpp
+++ b/tools/libclang/CIndex.cpp
@@ -1983,10 +1983,12 @@ bool CursorVisitor::RunVisitorWorkList(VisitorWorkList &WL) {
       }
       case VisitorJob::LabelRefVisitKind: {
         LabelDecl *LS = cast<LabelRefVisit>(&LI)->get();
-        if (Visit(MakeCursorLabelRef(LS->getStmt(),
-                                     cast<LabelRefVisit>(&LI)->getLoc(),
-                                     TU)))
-          return true;
+        if (LabelStmt *stmt = LS->getStmt()) {
+          if (Visit(MakeCursorLabelRef(stmt, cast<LabelRefVisit>(&LI)->getLoc(),
+                                       TU))) {
+            return true;
+          }
+        }
         continue;
       }
       case VisitorJob::NestedNameSpecifierVisitKind: {