Add the clang library to the repo (with some of my changes, too).

1 files changed, 58 insertions, 0 deletions

diff --git a/clang/test/Analysis/reference.cpp b/clang/test/Analysis/reference.cpp
new file mode 100644
index 0000000..5897e68
--- /dev/null
+++ b/clang/test/Analysis/reference.cpp
@@ -0,0 +1,58 @@
+// RUN: %clang_cc1 -analyze -analyzer-checker=core,experimental.core -analyzer-store=region -analyzer-constraints=range -verify -Wno-null-dereference %s
+// XFAIL
+
+typedef typeof(sizeof(int)) size_t;
+void malloc (size_t);
+
+void f1() {
+  int const &i = 3;  // <--- **FIXME** This is currently not being modeled correctly.
+  int b = i;
+
+  int *p = 0;
+
+  if (b != 3)
+    *p = 1; // no-warning
+}
+
+char* ptr();
+char& ref();
+
+// These next two tests just shouldn't crash.
+char t1 () {
+  ref() = 'c';
+  return '0';
+}
+
+// just a sanity test, the same behavior as t1()
+char t2 () {
+  *ptr() = 'c';
+  return '0';
+}
+
+// Each of the tests below is repeated with pointers as well as references.
+// This is mostly a sanity check, but then again, both should work!
+char t3 () {
+  char& r = ref();
+  r = 'c'; // no-warning
+  if (r) return r;
+  return *(char*)0; // no-warning
+}
+
+char t4 () {
+  char* p = ptr();
+  *p = 'c'; // no-warning
+  if (*p) return *p;
+  return *(char*)0; // no-warning
+}
+
+char t5 (char& r) {
+  r = 'c'; // no-warning
+  if (r) return r;
+  return *(char*)0; // no-warning
+}
+
+char t6 (char* p) {
+  *p = 'c'; // no-warning
+  if (*p) return *p;
+  return *(char*)0; // no-warning
+}