Add a basic testcase for the "variable is not needed" warning and one that

regressed in r168519.

llvm-svn: 168563

1 files changed, 27 insertions, 0 deletions

diff --git a/clang/test/SemaCXX/warn-variable-not-needed.cpp b/clang/test/SemaCXX/warn-variable-not-needed.cpp
new file mode 100644
index 00000000000..0fb0f8151b4
--- /dev/null
+++ b/clang/test/SemaCXX/warn-variable-not-needed.cpp
@@ -0,0 +1,27 @@
+// RUN: %clang_cc1 -fsyntax-only -verify -Wall %s
+
+namespace test1 {
+  static int abc = 42; // expected-warning {{variable 'abc' is not needed and will not be emitted}}
+  template <typename T>
+  int foo(void) {
+    return abc;
+  }
+}
+
+namespace test2 {
+  struct bah {
+  };
+  namespace {
+    struct foo : bah {
+      static char bar;
+      virtual void zed();
+    };
+    void foo::zed() {
+      bar++;
+    }
+    char foo::bar=0;
+  }
+  bah *getfoo() {
+    return new foo();
+  }
+}