1 files changed, 16 insertions, 0 deletions
diff --git a/compiler-rt/test/asan/TestCases/Windows/stack_array_left_oob.cpp b/compiler-rt/test/asan/TestCases/Windows/stack_array_left_oob.cpp
new file mode 100644
index 00000000000..ff36185395b
--- /dev/null
+++ b/compiler-rt/test/asan/TestCases/Windows/stack_array_left_oob.cpp
@@ -0,0 +1,16 @@
+// RUN: %clang_cl_asan -Od %s -Fe%t
+// RUN: not %run %t 2>&1 | FileCheck %s
+
+#include <stdio.h>
+
+int main() {
+  int subscript = -1;
+  char buffer[42];
+  buffer[subscript] = 42;
+// CHECK: AddressSanitizer: stack-buffer-underflow on address [[ADDR:0x[0-9a-f]+]]
+// CHECK: WRITE of size 1 at [[ADDR]] thread T0
+// CHECK-NEXT: {{#0 .* main .*stack_array_left_oob.cpp}}:[[@LINE-3]]
+// CHECK: Address [[ADDR]] is located in stack of thread T0 at offset [[OFFSET:.*]] in frame
+// CHECK-NEXT: {{#0 .* main .*stack_array_left_oob.cpp}}
+// CHECK: 'buffer'{{.*}} <== Memory access at offset [[OFFSET]] underflows this variable
+}