Index: tests/RuntimeARCTests.m
==================================================================
--- tests/RuntimeARCTests.m
+++ tests/RuntimeARCTests.m
@@ -25,11 +25,11 @@
 @implementation RuntimeARCTest
 - (instancetype)init
 {
 	self = [super init];
 
-#ifdef OF_WINDOWS
+#if defined(OF_WINDOWS) && defined(OF_X86_64)
 	/*
 	 * Clang has a bug on Windows where it creates an invalid call into
 	 * objc_retainAutoreleasedReturnValue(). Work around it by not using an
 	 * autoreleased exception.
 	 */