[ASan] Disable allocator_oom_test.cc on s390

Summary:
ASan shadow memory on s390 is larger than other configurations, let's
disable this test for now (will revisit it later).

Reviewers: eugenis

Subscribers: kubamracek, llvm-commits

Differential Revision: https://reviews.llvm.org/D34414

llvm-svn: 305822

compiler-rt/test/asan/TestCases/Linux/allocator_oom_test.cc

@@ -28,6 +28,9 @@
 // RUN: %env_asan_opts=allocator_may_return_null=1     %run %t realloc-after-malloc 2>&1 \
 // RUN:   | FileCheck %s --check-prefixes=CHECK-MALLOC-REALLOC,CHECK-NULL
 
+// ASan shadow memory on s390 is too large for this test.
+// UNSUPPORTED: s390
+
 #include <stdlib.h>
 #include <string.h>
 #include <stdio.h>