S390: Enable unaligned accesses and character preloading in regexp.

src/interpreter/interpreter-assembler.cc

Index: src/interpreter/interpreter-assembler.cc
diff --git a/src/interpreter/interpreter-assembler.cc b/src/interpreter/interpreter-assembler.cc
index d878c5c69370b4904e5963b81e6487f34d7a3ae7..fd6ee3fcae90aec1d9f05442b1e436a2a0314a97 100644
--- a/src/interpreter/interpreter-assembler.cc
+++ b/src/interpreter/interpreter-assembler.cc
@@ -677,10 +677,10 @@ void InterpreterAssembler::TraceBytecodeDispatch(Node* target_bytecode) {
 bool InterpreterAssembler::TargetSupportsUnalignedAccess() {
 #if V8_TARGET_ARCH_MIPS || V8_TARGET_ARCH_MIPS64
   return false;
-#elif V8_TARGET_ARCH_ARM || V8_TARGET_ARCH_ARM64 || V8_TARGET_ARCH_PPC
-  return CpuFeatures::IsSupported(UNALIGNED_ACCESSES);
-#elif V8_TARGET_ARCH_IA32 || V8_TARGET_ARCH_X64 || V8_TARGET_ARCH_X87 || \
+#elif V8_TARGET_ARCH_ARM || V8_TARGET_ARCH_ARM64 || V8_TARGET_ARCH_PPC || \
     V8_TARGET_ARCH_S390
+  return CpuFeatures::IsSupported(UNALIGNED_ACCESSES);
+#elif V8_TARGET_ARCH_IA32 || V8_TARGET_ARCH_X64 || V8_TARGET_ARCH_X87
   return true;
 #else
 #error "Unknown Architecture"