[analyzer] Switched to checkPreCall interface for detecting usage after free.
Now the check is also applied to arguments for Objective-C method calls and to 'this' pointer.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@179230 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/Analysis/NewDelete-checker-test.cpp b/test/Analysis/NewDelete-checker-test.cpp
index bf95221..35125cc 100644
--- a/test/Analysis/NewDelete-checker-test.cpp
+++ b/test/Analysis/NewDelete-checker-test.cpp
@@ -54,7 +54,6 @@
// expected-warning@-2{{Potential leak of memory pointed to by 'p'}}
#endif
-
//----- Standard pointer placement operators
void testGlobalPointerPlacementNew() {
int i;
@@ -91,14 +90,54 @@
// other checks
//---------------
-void f(int *);
+class SomeClass {
+public:
+ void f(int *p);
+};
-void testUseAfterDelete() {
+void f(int *p1, int *p2 = 0, int *p3 = 0);
+void g(SomeClass &c, ...);
+
+void testUseFirstArgAfterDelete() {
int *p = new int;
delete p;
f(p); // expected-warning{{Use of memory after it is freed}}
}
+void testUseMiddleArgAfterDelete(int *p) {
+ delete p;
+ f(0, p); // expected-warning{{Use of memory after it is freed}}
+}
+
+void testUseLastArgAfterDelete(int *p) {
+ delete p;
+ f(0, 0, p); // expected-warning{{Use of memory after it is freed}}
+}
+
+void testUseRefArgAfterDelete(SomeClass &c) {
+ delete &c;
+ g(c); // expected-warning{{Use of memory after it is freed}}
+}
+
+void testVariadicArgAfterDelete() {
+ SomeClass c;
+ int *p = new int;
+ delete p;
+ g(c, 0, p); // expected-warning{{Use of memory after it is freed}}
+}
+
+void testUseMethodArgAfterDelete(int *p) {
+ SomeClass *c = new SomeClass;
+ delete p;
+ c->f(p); // expected-warning{{Use of memory after it is freed}}
+}
+
+void testUseThisAfterDelete() {
+ SomeClass *c = new SomeClass;
+ delete c;
+ c->f(0); // expected-warning{{Use of memory after it is freed}}
+}
+
void testDeleteAlloca() {
int *p = (int *)__builtin_alloca(sizeof(int));
delete p; // expected-warning{{Memory allocated by alloca() should not be deallocated}}