1 files changed, 18 insertions, 0 deletions
diff --git a/test/lsan/TestCases/large_allocation_leak.cc b/test/lsan/TestCases/large_allocation_leak.cc
new file mode 100644
index 000000000000..f41143a8a501
--- /dev/null
+++ b/test/lsan/TestCases/large_allocation_leak.cc
@@ -0,0 +1,18 @@
+// Test that LargeMmapAllocator's chunks aren't reachable via some internal data structure.
+// RUN: LSAN_BASE="report_objects=1:use_stacks=0:use_registers=0"
+// RUN: %clangxx_lsan %s -o %t
+// RUN: LSAN_OPTIONS=$LSAN_BASE not %run %t 2>&1 | FileCheck %s
+
+#include <stdio.h>
+#include <stdlib.h>
+
+int main() {
+  // maxsize in primary allocator is always less than this (1 << 25).
+  void *large_alloc = malloc(33554432);
+  fprintf(stderr, "Test alloc: %p.\n", large_alloc);
+  return 0;
+}
+// CHECK: Test alloc: [[ADDR:.*]].
+// CHECK: LeakSanitizer: detected memory leaks
+// CHECK: [[ADDR]] (33554432 bytes)
+// CHECK: SUMMARY: {{(Leak|Address)}}Sanitizer: