[analyzer] Fix another false positive in malloc realloc logic.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@163749 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 10 insertions, 0 deletions

diff --git a/test/Analysis/malloc.c b/test/Analysis/malloc.c
index 52a79243ce..b939ac36d1 100644
--- a/test/Analysis/malloc.c
+++ b/test/Analysis/malloc.c
@@ -1020,6 +1020,16 @@ int reallocButNoMallocPR13674(struct HasPtr *a, int c, int size) {
   return 0;
 }
 
+// Test realloc with no visible malloc.
+void *test(void *ptr) {
+  void *newPtr = realloc(ptr, 4);
+  if (newPtr == 0) {
+    if (ptr)
+      free(ptr); // no-warning
+  }
+  return newPtr;
+}
+
 // ----------------------------------------------------------------------------
 // False negatives.