Vendor import of clang release_32 branch r168974 (effectively, 3.2 RC2):

http://llvm.org/svn/llvm-project/cfe/branches/release_32@168974

1 files changed, 26 insertions, 2 deletions

diff --git a/test/Analysis/reference.cpp b/test/Analysis/reference.cpp
index 06e4a50..ce0ee8e 100644
--- a/test/Analysis/reference.cpp
+++ b/test/Analysis/reference.cpp
@@ -1,4 +1,4 @@
-// RUN: %clang_cc1 -analyze -analyzer-checker=core,experimental.core,debug.ExprInspection -analyzer-store=region -analyzer-constraints=range -verify -Wno-null-dereference %s
+// RUN: %clang_cc1 -analyze -analyzer-checker=core,alpha.core,debug.ExprInspection -analyzer-store=region -analyzer-constraints=range -verify -Wno-null-dereference %s
 
 void clang_analyzer_eval(bool);
 
@@ -110,6 +110,31 @@ void testRetroactiveNullReference(int *x) {
   y = 5; // expected-warning{{Dereference of null pointer}}
 }
 
+void testReferenceAddress(int &x) {
+  clang_analyzer_eval(&x != 0); // expected-warning{{TRUE}}
+  clang_analyzer_eval(&ref() != 0); // expected-warning{{TRUE}}
+
+  struct S { int &x; };
+
+  extern S getS();
+  clang_analyzer_eval(&getS().x != 0); // expected-warning{{TRUE}}
+
+  extern S *getSP();
+  clang_analyzer_eval(&getSP()->x != 0); // expected-warning{{TRUE}}
+}
+
+
+void testFunctionPointerReturn(void *opaque) {
+  typedef int &(*RefFn)();
+
+  RefFn getRef = (RefFn)opaque;
+
+  // Don't crash writing to or reading from this reference.
+  int &x = getRef();
+  x = 42;
+  clang_analyzer_eval(x == 42); // expected-warning{{TRUE}}
+}
+
 
 // ------------------------------------
 // False negatives
@@ -127,5 +152,4 @@ namespace rdar11212286 {
     B *x = 0;
     return *x; // should warn here!
   }
-
 }