s390: exploit high-word facility for Smi Ops

src/s390/disasm-s390.cc

 // Copyright 2014 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.
 
 // A Disassembler object is used to disassemble a block of code instruction by
 // instruction. The default implementation of the NameConverter object can be
 // overriden to modify register names or to do symbol lookup on addresses.
 //
 // The example below will disassemble a block of code and print it to stdout.
 //
@@ skipping 1052 matching lines @@
 #undef DECODE_VRR_C_INSTRUCTIONS
     case LLILF:
       Format(instr, "llilf\t'r1,'i7");
       break;
     case LLIHF:
       Format(instr, "llihf\t'r1,'i7");
       break;
     case AFI:
       Format(instr, "afi\t'r1,'i7");
       break;
+    case AIH:
+      Format(instr, "aih\t'r1,'i7");
+      break;
     case ASI:
       Format(instr, "asi\t'd2('r3),'ic");
       break;
     case AGSI:
       Format(instr, "agsi\t'd2('r3),'ic");
       break;
     case ALFI:
       Format(instr, "alfi\t'r1,'i7");
       break;
     case AHIK:
       Format(instr, "ahik\t'r1,'r2,'i1");
       break;
     case AGHIK:
       Format(instr, "aghik\t'r1,'r2,'i1");
       break;
     case CLGFI:
       Format(instr, "clgfi\t'r1,'i7");
       break;
     case CLFI:
       Format(instr, "clfi\t'r1,'i7");
       break;
+    case CLIH:
+      Format(instr, "clih\t'r1,'i7");
+      break;
+    case CIH:
+      Format(instr, "cih\t'r1,'i2");
+      break;
     case CFI:
       Format(instr, "cfi\t'r1,'i2");
       break;
     case CGFI:
       Format(instr, "cgfi\t'r1,'i2");
       break;
     case BRASL:
       Format(instr, "brasl\t'r1,'ie");
       break;
     case BRCL:
@@ skipping 379 matching lines @@
     byte* prev_pc = pc;
     pc += d.InstructionDecode(buffer, pc);
     v8::internal::PrintF(f, "%p    %08x      %s\n", static_cast<void*>(prev_pc),
                          *reinterpret_cast<int32_t*>(prev_pc), buffer.start());
   }
 }
 
 }  // namespace disasm
 
 #endif  // V8_TARGET_ARCH_S390