Import compiler-rt release_34 branch r197381.vendor/compiler-rt/compiler-rt-r197381

https://llvm.org/svn/llvm-project/compiler-rt/branches/release_34@197381

1 files changed, 29 insertions, 0 deletions

diff --git a/lib/asan/lit_tests/TestCases/use-after-scope-temp.cc b/lib/asan/lit_tests/TestCases/use-after-scope-temp.cc
new file mode 100644
index 000000000000..13d714f9def7
--- /dev/null
+++ b/lib/asan/lit_tests/TestCases/use-after-scope-temp.cc
@@ -0,0 +1,29 @@
+// RUN: %clangxx_asan -O0 -fsanitize=use-after-scope %s -o %t && \
+// RUN:     %t 2>&1 | FileCheck %s
+//
+// Lifetime for temporaries is not emitted yet.
+// XFAIL: *
+
+#include <stdio.h>
+
+struct IntHolder {
+  explicit IntHolder(int val) : val(val) {
+    printf("IntHolder: %d\n", val);
+  }
+  int val;
+};
+
+const IntHolder *saved;
+
+void save(const IntHolder &holder) {
+  saved = &holder;
+}
+
+int main(int argc, char *argv[]) {
+  save(IntHolder(10));
+  int x = saved->val;  // BOOM
+  // CHECK: ERROR: AddressSanitizer: stack-use-after-scope
+  // CHECK:  #0 0x{{.*}} in main {{.*}}use-after-scope-temp.cc:[[@LINE-2]]
+  printf("saved value: %d\n", x);
+  return 0;
+}