From: Ted Kremenek <kremenek@apple.com>
Date: Tue, 15 Mar 2011 23:47:49 +0000 (+0000)
Subject: c-index-test shouldn't crash when a goto has no matching label.  Fixes <rdar://proble... 
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=37c2e9664316b013b9a86f841f143f19ffbc0a02;p=clang

c-index-test shouldn't crash when a goto has no matching label.  Fixes <rdar://problem/9123493>.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@127711 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/test/Index/cindex-on-invalid.m b/test/Index/cindex-on-invalid.m
index d2d952d8b1..d223c2ad59 100644
--- a/test/Index/cindex-on-invalid.m
+++ b/test/Index/cindex-on-invalid.m
@@ -1,6 +1,13 @@
 // RUN: c-index-test -test-load-source local %s 2>&1 | FileCheck %s
 
+// <rdar://problem/9123493>
+void test() {                              
+  goto exit;
+}
+
 int foo;
 int
 
-// CHECK: cindex-on-invalid.m:6:70: error: expected identifier or '('
\ No newline at end of file
+// CHECK: cindex-on-invalid.m:5:8: error: use of undeclared label 'exit'
+// CHECK: cindex-on-invalid.m:13:1: error: expected identifier or '('
+
diff --git a/tools/libclang/CIndex.cpp b/tools/libclang/CIndex.cpp
index 290146fa4d..538efd7ae3 100644
--- a/tools/libclang/CIndex.cpp
+++ b/tools/libclang/CIndex.cpp
@@ -3709,7 +3709,9 @@ CXCursor clang_getCursorReferenced(CXCursor C) {
   if (clang_isStatement(C.kind)) {
     Stmt *S = getCursorStmt(C);
     if (GotoStmt *Goto = dyn_cast_or_null<GotoStmt>(S))
-      return MakeCXCursor(Goto->getLabel()->getStmt(), getCursorDecl(C), tu);
+      if (LabelDecl *label = Goto->getLabel())
+        if (LabelStmt *labelS = label->getStmt())
+        return MakeCXCursor(labelS, getCursorDecl(C), tu);
 
     return clang_getNullCursor();
   }