1 files changed, 51 insertions, 0 deletions
diff --git a/test/SemaCXX/uninit-variables.cpp b/test/SemaCXX/uninit-variables.cpp
new file mode 100644
index 0000000..2bc7fb3
--- /dev/null
+++ b/test/SemaCXX/uninit-variables.cpp
@@ -0,0 +1,51 @@
+// RUN: %clang_cc1 -fsyntax-only -Wuninitialized-experimental -fsyntax-only %s -verify
+
+int test1_aux(int &x);
+int test1() {
+  int x;
+  test1_aux(x);
+  return x; // no-warning
+}
+
+int test2_aux() {
+  int x;
+  int &y = x;
+  return x; // no-warning
+}
+
+// Handle cases where the CFG may constant fold some branches, thus
+// mitigating the need for some path-sensitivity in the analysis.
+unsigned test3_aux();
+unsigned test3() {
+  unsigned x = 0;
+  const bool flag = true;
+  if (flag && (x = test3_aux()) == 0) {
+    return x;
+  }
+  return x;
+}
+unsigned test3_b() {
+  unsigned x ;
+  const bool flag = true;
+  if (flag && (x = test3_aux()) == 0) {
+    x = 1;
+  }
+  return x; // no-warning
+}
+unsigned test3_c() {
+  unsigned x; // expected-note{{declared here}} expected-note{{add initialization}}
+  const bool flag = false;
+  if (flag && (x = test3_aux()) == 0) {
+    x = 1;
+  }
+  return x; // expected-warning{{variable 'x' is possibly uninitialized when used here}}
+}
+
+enum test4_A {
+ test4_A_a, test_4_A_b
+};
+test4_A test4() {
+ test4_A a; // expected-note{{variable 'a' is declared here}}
+ return a; // expected-warning{{variable 'a' is possibly uninitialized when used here}}
+}
+