Let constraint manager inform checkers that some assumption logic has happend.

Add new states for symbolic regions tracked by malloc checker. This enables us
to do malloc checking more accurately. See test case.

Based on Lei Zhang's patch and discussion.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@92342 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 8 insertions, 0 deletions

diff --git a/test/Analysis/malloc.c b/test/Analysis/malloc.c
index c885587df7..4d771eeb4b 100644
--- a/test/Analysis/malloc.c
+++ b/test/Analysis/malloc.c
@@ -43,3 +43,11 @@ int *f5() {
   q = realloc(q, 20);
   return q; // no-warning
 }
+
+void f6() {
+  int *p = malloc(10);
+  if (!p)
+    return; // no-warning
+  else
+    free(p);
+}