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

1 files changed, 27 insertions, 0 deletions

diff --git a/clang/test/Analysis/rdar-6541136-region.c b/clang/test/Analysis/rdar-6541136-region.c
new file mode 100644
index 0000000..b90d4f4
--- /dev/null
+++ b/clang/test/Analysis/rdar-6541136-region.c
@@ -0,0 +1,27 @@
+// RUN: %clang_cc1 -verify -analyze -analyzer-checker=core,experimental.security.ArrayBound -analyzer-store=region %s
+
+struct tea_cheese { unsigned magic; };
+typedef struct tea_cheese kernel_tea_cheese_t;
+extern kernel_tea_cheese_t _wonky_gesticulate_cheese;
+
+// This test case exercises the ElementRegion::getRValueType() logic.
+
+void test1( void ) {
+  kernel_tea_cheese_t *wonky = &_wonky_gesticulate_cheese;
+  struct load_wine *cmd = (void*) &wonky[1];
+  cmd = cmd;
+  char *p = (void*) &wonky[1];
+  kernel_tea_cheese_t *q = &wonky[1];
+  // This test case tests both the RegionStore logic (doesn't crash) and
+  // the out-of-bounds checking.  We don't expect the warning for now since
+  // out-of-bound checking is temporarily disabled.
+  kernel_tea_cheese_t r = *q; // expected-warning{{Access out-of-bound array element (buffer overflow)}}
+}
+
+void test1_b( void ) {
+  kernel_tea_cheese_t *wonky = &_wonky_gesticulate_cheese;
+  struct load_wine *cmd = (void*) &wonky[1];
+  cmd = cmd;
+  char *p = (void*) &wonky[1];
+  *p = 1;  // expected-warning{{Access out-of-bound array element (buffer overflow)}}
+}