Use the element type to compute the array size when the base region is a VarRegion.
Patch by Jordy Rose.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@100099 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/Analysis/outofbound.c b/test/Analysis/outofbound.c
index 45325e9..e1ff66c 100644
--- a/test/Analysis/outofbound.c
+++ b/test/Analysis/outofbound.c
@@ -13,3 +13,26 @@
int *p = malloc(12);
p[3] = 4; // expected-warning{{Access out-of-bound array element (buffer overflow)}}
}
+
+struct three_words {
+ int c[3];
+};
+
+struct seven_words {
+ int c[7];
+};
+
+void f3() {
+ struct three_words a, *p;
+ p = &a;
+ p[0] = a; // no-warning
+ p[1] = a; // expected-warning{{Access out-of-bound array element (buffer overflow)}}
+}
+
+void f4() {
+ struct seven_words c;
+ struct three_words a, *p = (struct three_words *)&c;
+ p[0] = a; // no-warning
+ p[1] = a; // no-warning
+ p[2] = a; // expected-warning{{Access out-of-bound array element (buffer overflow)}}
+}