1 files changed, 34 insertions, 0 deletions
diff --git a/test/asan/TestCases/Windows/dll_aligned_mallocs.cc b/test/asan/TestCases/Windows/dll_aligned_mallocs.cc
new file mode 100644
index 0000000000000..8b2c4d6dd9579
--- /dev/null
+++ b/test/asan/TestCases/Windows/dll_aligned_mallocs.cc
@@ -0,0 +1,34 @@
+// RUN: %clang_cl_asan -O0 %p/dll_host.cc -Fe%t
+// RUN: %clang_cl_asan -LD -O0 %s -Fe%t.dll
+// RUN: %run %t %t.dll | FileCheck %s
+
+#include <malloc.h>
+#include <stdio.h>
+
+#define CHECK_ALIGNED(ptr,alignment) \
+  do { \
+    if (((uintptr_t)(ptr) % (alignment)) != 0) \
+      return __LINE__; \
+    } \
+  while(0)
+
+extern "C" __declspec(dllexport)
+int test_function() {
+  int *p = (int*)_aligned_malloc(1024 * sizeof(int), 32);
+  CHECK_ALIGNED(p, 32);
+  p[512] = 0;
+  _aligned_free(p);
+
+  p = (int*)_aligned_malloc(128, 128);
+  CHECK_ALIGNED(p, 128);
+  p = (int*)_aligned_realloc(p, 2048 * sizeof(int), 128);
+  CHECK_ALIGNED(p, 128);
+  p[1024] = 0;
+  if (_aligned_msize(p, 128, 0) != 2048 * sizeof(int))
+    return __LINE__;
+  _aligned_free(p);
+
+  printf("All ok\n");
+// CHECK: All ok
+  return 0;
+}