1 files changed, 38 insertions, 0 deletions
diff --git a/test/Sema/pragma-unused.c b/test/Sema/pragma-unused.c
new file mode 100644
index 0000000..fe8bf86
--- /dev/null
+++ b/test/Sema/pragma-unused.c
@@ -0,0 +1,38 @@
+// RUN: clang-cc -fsyntax-only -verify %s
+
+void f1(void) {
+  int x, y, z;
+  #pragma unused(x)
+  #pragma unused(y, z)
+  
+  int w; // FIXME: We should emit a warning that 'w' is unused.  
+  #pragma unused w // expected-warning{{missing '(' after '#pragma unused' - ignoring}}
+}
+
+void f2(void) {
+  int x, y;
+  #pragma unused(x,) // expected-warning{{expected '#pragma unused' argument to be a variable name}}
+  #pragma unused() // expected-warning{{expected '#pragma unused' argument to be a variable name}}
+}
+
+void f3(void) {
+  #pragma unused(x) // expected-error{{use of undeclared identifier 'x'}}
+}
+
+void f4(void) {
+  int w; // FIXME: We should emit a warning that 'w' is unused.
+  #pragma unused((w)) // expected-warning{{expected '#pragma unused' argument to be a variable name}}
+}
+
+int k;
+void f5(void) {
+  #pragma unused(k) // expected-warning{{only local variables can be arguments to '#pragma unused' - ignored}}
+}
+
+void f6(void) {
+  int z; // no-warning
+  {
+    #pragma unused(z) // no-warning
+  }
+}
+