Index: test/asan/TestCases/Windows/shadow_mapping_failure.cc
===================================================================
--- test/asan/TestCases/Windows/shadow_mapping_failure.cc
+++ test/asan/TestCases/Windows/shadow_mapping_failure.cc
@@ -1,5 +1,6 @@
 // RUN: %clang_cl_asan -O0 %s -Fe%t
 // RUN: not %run %t 2>&1 | FileCheck %s
+// REQUIRES: asan-32-bits
 
 #include <stdio.h>