S390: Enable unaligned accesses and character preloading in regexp.

src/s390/assembler-s390.cc

 // Copyright (c) 1994-2006 Sun Microsystems Inc.
 // All Rights Reserved.
 //
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions
 // are met:
 //
 // - Redistributions of source code must retain the above copyright notice,
 // this list of conditions and the following disclaimer.
 //
@@ skipping 155 matching lines @@
 #else
   // All distinct ops instructions can be simulated
   supported_ |= (1u << DISTINCT_OPS);
   // RISBG can be simulated
   supported_ |= (1u << GENERAL_INSTR_EXT);
 
   supported_ |= (1u << FLOATING_POINT_EXT);
   USE(performSTFLE);  // To avoid assert
 #endif
   supported_ |= (1u << FPU);
+  supported_ |= (1u << UNALIGNED_ACCESSES);
 }
 
 void CpuFeatures::PrintTarget() {
   const char* s390_arch = NULL;
 
 #if V8_TARGET_ARCH_S390X
   s390_arch = "s390x";
 #else
   s390_arch = "s390";
 #endif
@@ skipping 2892 matching lines @@
                             SKIP_ICACHE_FLUSH);
     }
 
     reloc_info_writer.Write(&rinfo);
   }
 }
 
 }  // namespace internal
 }  // namespace v8
 #endif  // V8_TARGET_ARCH_S390