Upgrade V8 to 5.1.281.57 DO NOT MERGE
FPIIM-449
Change-Id: Id981b686b4d587ac31697662eb98bb34be42ad90
(cherry picked from commit 3b9bc31999c9787eb726ecdbfd5796bfdec32a18)
diff --git a/src/s390/cpu-s390.cc b/src/s390/cpu-s390.cc
new file mode 100644
index 0000000..d0d54a8
--- /dev/null
+++ b/src/s390/cpu-s390.cc
@@ -0,0 +1,25 @@
+// Copyright 2015 the V8 project authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// CPU specific code for s390 independent of OS goes here.
+#include "src/v8.h"
+
+#if V8_TARGET_ARCH_S390
+#include "src/assembler.h"
+
+namespace v8 {
+namespace internal {
+
+void CpuFeatures::FlushICache(void* buffer, size_t size) {
+ // Given the strong memory model on z/Architecture, and the single
+ // thread nature of V8 and JavaScript, instruction cache flushing
+ // is not necessary. The architecture guarantees that if a core
+ // patches its own instruction cache, the updated instructions will be
+ // reflected automatically.
+}
+
+} // namespace internal
+} // namespace v8
+
+#endif // V8_TARGET_ARCH_S390