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

1 files changed, 32 insertions, 0 deletions

diff --git a/clang/test/Analysis/no-outofbounds.c b/clang/test/Analysis/no-outofbounds.c
new file mode 100644
index 0000000..821f486
--- /dev/null
+++ b/clang/test/Analysis/no-outofbounds.c
@@ -0,0 +1,32 @@
+// RUN: %clang_cc1 -analyze -analyzer-checker=core,experimental.core,experimental.unix,experimental.security.ArrayBound -analyzer-store=region -verify %s
+
+//===----------------------------------------------------------------------===//
+// This file tests cases where we should not flag out-of-bounds warnings.
+//===----------------------------------------------------------------------===//
+
+void f() {
+  long x = 0;
+  char *y = (char*) &x;
+  char c = y[0] + y[1] + y[2]; // no-warning
+  short *z = (short*) &x;
+  short s = z[0] + z[1]; // no-warning
+}
+
+void g() {
+  int a[2];
+  char *b = (char*)a;
+  b[3] = 'c'; // no-warning
+}
+
+typedef typeof(sizeof(int)) size_t;
+void *malloc(size_t);
+void free(void *);
+
+void field() {
+  struct vec { size_t len; int data[0]; };
+  // FIXME: Not warn for this.
+  struct vec *a = malloc(sizeof(struct vec) + 10); // expected-warning {{Cast a region whose size is not a multiple of the destination type size}}
+  a->len = 10;
+  a->data[1] = 5; // no-warning
+  free(a);
+}