1 files changed, 61 insertions, 0 deletions
diff --git a/clang/test/Sema/warn-shadow.c b/clang/test/Sema/warn-shadow.c
new file mode 100644
index 0000000..32aca8d
--- /dev/null
+++ b/clang/test/Sema/warn-shadow.c
@@ -0,0 +1,61 @@
+// RUN: %clang_cc1 -verify -fsyntax-only -fblocks -Wshadow %s
+
+int i;          // expected-note 3 {{previous declaration is here}}
+
+void foo() {
+  int pass1;
+  int i;        // expected-warning {{declaration shadows a variable in the global scope}} \
+                // expected-note {{previous declaration is here}}
+  {
+    int pass2;
+    int i;      // expected-warning {{declaration shadows a local variable}} \
+                // expected-note {{previous declaration is here}}
+    {
+      int pass3;
+      int i;    // expected-warning {{declaration shadows a local variable}}
+    }
+  }
+
+  int sin; // okay; 'sin' has not been declared, even though it's a builtin.
+}
+
+// <rdar://problem/7677531>
+void (^test1)(int) = ^(int i) { // expected-warning {{declaration shadows a variable in the global scope}} \
+                                 // expected-note{{previous declaration is here}}
+  {
+    int i; // expected-warning {{declaration shadows a local variable}} \
+           // expected-note{{previous declaration is here}}
+    
+    (^(int i) { return i; })(i); //expected-warning {{declaration shadows a local variable}}
+  }
+};
+
+
+struct test2 {
+  int i;
+};
+
+void test3(void) {
+  struct test4 {
+    int i;
+  };
+}
+
+void test4(int i) { // expected-warning {{declaration shadows a variable in the global scope}}
+}
+
+// Don't warn about shadowing for function declarations.
+void test5(int i);
+void test6(void (*f)(int i)) {}
+void test7(void *context, void (*callback)(void *context)) {}
+
+extern int bob; // expected-note {{previous declaration is here}}
+
+// rdar://8883302
+void rdar8883302() {
+  extern int bob; // don't warn for shadowing.
+}
+
+void test8() {
+  int bob; // expected-warning {{declaration shadows a variable in the global scope}}
+}