1 files changed, 21 insertions, 0 deletions
diff --git a/test/Analysis/misc-ps-basic-store.m b/test/Analysis/misc-ps-basic-store.m
new file mode 100644
index 0000000..1207f86
--- /dev/null
+++ b/test/Analysis/misc-ps-basic-store.m
@@ -0,0 +1,21 @@
+// RUN: clang-cc -analyze -checker-cfref --analyzer-store=basic --verify -fblocks %s
+
+//---------------------------------------------------------------------------
+// Test case 'checkaccess_union' differs for region store and basic store.
+// The basic store doesn't reason about compound literals, so the code
+// below won't fire an "uninitialized value" warning.
+//---------------------------------------------------------------------------
+
+// PR 2948 (testcase; crash on VisitLValue for union types)
+// http://llvm.org/bugs/show_bug.cgi?id=2948
+
+void checkaccess_union() {
+  int ret = 0, status;
+  if (((((__extension__ (((union {  // no-warning
+    __typeof (status) __in; int __i;}
+    )
+    {
+      .__in = (status)}
+      ).__i))) & 0xff00) >> 8) == 1)
+        ret = 1;
+}