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-rw-r--r--test/asan/TestCases/use-after-scope-goto.cpp73
1 files changed, 73 insertions, 0 deletions
diff --git a/test/asan/TestCases/use-after-scope-goto.cpp b/test/asan/TestCases/use-after-scope-goto.cpp
new file mode 100644
index 000000000..351cbe995
--- /dev/null
+++ b/test/asan/TestCases/use-after-scope-goto.cpp
@@ -0,0 +1,73 @@
+// RUN: %clangxx_asan -O0 -fsanitize-address-use-after-scope %s -o %t && %run %t
+
+// Function jumps over variable initialization making lifetime analysis
+// ambiguous. Asan should ignore such variable and program must not fail.
+
+#include <stdlib.h>
+
+int *ptr;
+
+void f1(int cond) {
+ if (cond)
+ goto label;
+ int tmp;
+
+ label:
+ ptr = &tmp;
+ *ptr = 5;
+}
+
+void f2(int cond) {
+ switch (cond) {
+ case 1: {
+ ++cond;
+ int tmp;
+ ptr = &tmp;
+ exit(0);
+ case 2:
+ ptr = &tmp;
+ *ptr = 5;
+ exit(0);
+ }
+ }
+}
+
+void f3(int cond) {
+ {
+ int tmp;
+ goto l2;
+ l1:
+ ptr = &tmp;
+ *ptr = 5;
+
+ exit(0);
+ }
+ l2:
+ goto l1;
+}
+
+void use(int *x) {
+ static int c = 10;
+ if (--c == 0)
+ exit(0);
+ (*x)++;
+}
+
+void f4() {
+ {
+ int x;
+ l2:
+ use(&x);
+ goto l1;
+ }
+ l1:
+ goto l2;
+}
+
+int main() {
+ f1(1);
+ f2(1);
+ f3(1);
+ f4();
+ return 0;
+}