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/no-outofbounds.c b/test/Analysis/no-outofbounds.c
index f9ac589..771323b 100644
--- a/test/Analysis/no-outofbounds.c
+++ b/test/Analysis/no-outofbounds.c
@@ -1,6 +1,5 @@
// RUN: %clang_cc1 -analyzer-check-objc-mem -analyze -analyzer-experimental-internal-checks -analyzer-store=basic -verify %s
// RUN: %clang_cc1 -analyzer-check-objc-mem -analyze -analyzer-experimental-internal-checks -analyzer-store=region -verify %s
-// XFAIL: *
//===----------------------------------------------------------------------===//
// This file tests cases where we should not flag out-of-bounds warnings.
@@ -10,4 +9,6 @@
long x = 0;
char *y = (char*) &x;
char c = y[0] + y[1] + y[2]; // no-warning
+ short *z = (short*) &x;
+ short s = z[0] + z[1]; // no-warning
}
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)}}
+}