1 files changed, 32 insertions, 0 deletions
diff --git a/clang/test/Sema/warn-unused-variables.c b/clang/test/Sema/warn-unused-variables.c
new file mode 100644
index 0000000..58e52b1
--- /dev/null
+++ b/clang/test/Sema/warn-unused-variables.c
@@ -0,0 +1,32 @@
+// RUN: %clang_cc1 -fsyntax-only -Wunused-variable -fblocks -verify %s
+
+struct s0 {
+	unsigned int	i;
+};
+
+int proto(int a, int b);
+
+void f0(void) {
+	int	a __attribute__((unused)),
+		b; // expected-warning{{unused}}
+	return;
+}
+
+void f1(void) {
+	int	i;
+	(void)sizeof(i);
+	return;
+}
+
+// PR5933
+int f2() {
+  int X = 4;  // Shouldn't have a bogus 'unused variable X' warning.
+  return Y + X; // expected-error {{use of undeclared identifier 'Y'}}
+}
+
+int f3() {
+  int X1 = 4; 
+  (void)(Y1 + X1); // expected-error {{use of undeclared identifier 'Y1'}}
+  (void)(^() { int X = 4; }); // expected-warning{{unused}}
+  (void)(^() { int X = 4; return Y + X; }); // expected-error {{use of undeclared identifier 'Y'}}
+}