Vendor import of clang RELEASE_350/final tag r216957 (effectively, 3.5.0 release):

https://llvm.org/svn/llvm-project/cfe/tags/RELEASE_350/final@216957

1 files changed, 58 insertions, 0 deletions

diff --git a/test/Analysis/kmalloc-linux.c b/test/Analysis/kmalloc-linux.c
new file mode 100644
index 0000000..87c1107
--- /dev/null
+++ b/test/Analysis/kmalloc-linux.c
@@ -0,0 +1,58 @@
+// RUN: %clang -target x86_64-unknown-linux --analyze %s
+
+#include "Inputs/system-header-simulator.h"
+
+#define __GFP_ZERO 0x8000
+#define NULL ((void *)0)
+
+void *kmalloc(size_t, int);
+
+struct test {
+};
+
+void foo(struct test *);
+
+void test_zeroed() {
+  struct test **list, *t;
+  int i;
+
+  list = kmalloc(sizeof(*list) * 10, __GFP_ZERO);
+  if (list == NULL)
+    return;
+
+  for (i = 0; i < 10; i++) {
+    t = list[i];
+    foo(t);
+  }
+  free(list); // no-warning
+}
+
+void test_nonzero() {
+  struct test **list, *t;
+  int i;
+
+  list = kmalloc(sizeof(*list) * 10, 0);
+  if (list == NULL)
+    return;
+
+  for (i = 0; i < 10; i++) {
+    t = list[i]; // expected-warning{{undefined}}
+    foo(t);
+  }
+  free(list);
+}
+
+void test_indeterminate(int flags) {
+  struct test **list, *t;
+  int i;
+
+  list = kmalloc(sizeof(*list) * 10, flags);
+  if (list == NULL)
+    return;
+
+  for (i = 0; i < 10; i++) {
+    t = list[i]; // expected-warning{{undefined}}
+    foo(t);
+  }
+  free(list);
+}