[Sema/Attribute] Check for noderef attribute
This patch adds the noderef attribute in clang and checks for dereferences of
types that have this attribute. This attribute is currently used by sparse and
would like to be ported to clang.
Differential Revision: https://reviews.llvm.org/D49511
llvm-svn: 348442
diff --git a/clang/test/Frontend/noderef_on_non_pointers.m b/clang/test/Frontend/noderef_on_non_pointers.m
new file mode 100644
index 0000000..ced7627
--- /dev/null
+++ b/clang/test/Frontend/noderef_on_non_pointers.m
@@ -0,0 +1,11 @@
+// RUN: %clang_cc1 -verify %s
+
+#define NODEREF __attribute__((noderef))
+
+@interface NSObject
++ (id)new;
+@end
+
+void func() {
+ id NODEREF obj = [NSObject new]; // expected-warning{{'noderef' can only be used on an array or pointer type}}
+}