Teach -Wuninitialized-experimental to also warn

about uninitialized variables captured by blocks.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@124213 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 21 insertions, 1 deletions

diff --git a/test/Sema/uninit-variables.c b/test/Sema/uninit-variables.c
index faf94c024b..200fc83b10 100644
--- a/test/Sema/uninit-variables.c
+++ b/test/Sema/uninit-variables.c
@@ -1,4 +1,4 @@
-// RUN: %clang_cc1 -fsyntax-only -Wuninitialized-experimental -fsyntax-only %s -verify
+// RUN: %clang_cc1 -fsyntax-only -Wuninitialized-experimental -fsyntax-only -fblocks %s -verify
 
 int test1() {
   int x; // expected-warning{{use of uninitialized variable 'x'}} expected-note{{add initialization to silence this warning}}
@@ -192,3 +192,23 @@ int test28() {
   return sizeof(int[len]); // expected-note{{variable 'len' is possibly uninitialized when used here}}
 }
 
+void test29() {
+  int x; // expected-warning{{use of uninitialized variable 'x'}} expected-note{{add initialization to silence this warning}}
+  (void) ^{ (void) x; }; // expected-note{{variable 'x' is possibly uninitialized when captured by block}}
+}
+
+void test30() {
+  static int x; // no-warning
+  (void) ^{ (void) x; };
+}
+
+void test31() {
+  __block int x; // no-warning
+  (void) ^{ (void) x; };
+}
+
+int test32_x;
+void test32() {
+  (void) ^{ (void) test32_x; }; // no-warning
+}
+