1 files changed, 59 insertions, 2 deletions
diff --git a/test/Analysis/null-deref-ps-region.c b/test/Analysis/null-deref-ps-region.c
index 6ef99ae473ca8..c46ca6c52ae34 100644
--- a/test/Analysis/null-deref-ps-region.c
+++ b/test/Analysis/null-deref-ps-region.c
@@ -1,6 +1,11 @@
-// RUN: %clang_analyze_cc1 -analyzer-checker=core,alpha.core -std=gnu99 -analyzer-store=region -verify %s
-// expected-no-diagnostics
+// RUN: %clang_analyze_cc1 -analyzer-checker=core,alpha.core,unix,alpha.unix -std=gnu99 -analyzer-store=region -verify %s
 
+#include "Inputs/system-header-simulator.h"
+
+typedef __typeof(sizeof(int)) size_t;
+void *memset(void *__s, int __c, size_t __n);
+void *malloc(size_t __size);
+void free(void *__ptr);
 
 // The store for 'a[1]' should not be removed mistakenly. SymbolicRegions may
 // also be live roots.
@@ -13,3 +18,55 @@ void f14(int *a) {
     i = *p; // no-warning
   }
 }
+
+void foo() {
+  int *x = malloc(sizeof(int));
+  memset(x, 0, sizeof(int));
+  int n = 1 / *x; // FIXME: no-warning
+  free(x);
+}
+
+void bar() {
+  int *x = malloc(sizeof(int));
+  memset(x, 0, 1);
+  int n = 1 / *x; // no-warning
+  free(x);
+}
+
+void testConcreteNull() {
+  int *x = 0;
+  memset(x, 0, 1); // expected-warning {{Null pointer argument in call to memory set function}}
+}
+
+void testStackArray() {
+  char buf[13];
+  memset(buf, 0, 1); // no-warning
+}
+
+void testHeapSymbol() {
+  char *buf = (char *)malloc(13);
+  memset(buf, 0, 1); // no-warning
+  free(buf);
+}
+
+void testStackArrayOutOfBound() {
+  char buf[1];
+  memset(buf, 0, 1024); // expected-warning {{Memory set function accesses out-of-bound array element}}
+}
+
+void testHeapSymbolOutOfBound() {
+  char *buf = (char *)malloc(1);
+  memset(buf, 0, 1024); // expected-warning {{Memory set function accesses out-of-bound array element}}
+  free(buf);
+}
+
+void testStackArraySameSize() {
+  char buf[1];
+  memset(buf, 0, sizeof(buf)); // no-warning
+}
+
+void testHeapSymbolSameSize() {
+  char *buf = (char *)malloc(1);
+  memset(buf, 0, 1); // no-warning
+  free(buf);
+}