PPC: [turbofan] Implemented the TruncateFloat64ToUint64 TurboFan operator.

src/ppc/disasm-ppc.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 943 matching lines @@
       break;
     }
     case FCTID: {
       Format(instr, "fctid   'Dt, 'Db");
       break;
     }
     case FCTIDZ: {
       Format(instr, "fctidz  'Dt, 'Db");
       break;
     }
+    case FCTIDU: {
+      Format(instr, "fctidu  'Dt, 'Db");
+      break;
+    }
+    case FCTIDUZ: {
+      Format(instr, "fctiduz 'Dt, 'Db");
+      break;
+    }
     case FCTIW: {
       Format(instr, "fctiw'. 'Dt, 'Db");
       break;
     }
     case FCTIWZ: {
       Format(instr, "fctiwz'. 'Dt, 'Db");
       break;
     }
     case FMR: {
       Format(instr, "fmr'.    'Dt, 'Db");
@@ skipping 463 matching lines @@
     pc += d.InstructionDecode(buffer, pc);
     v8::internal::PrintF(f, "%p    %08x      %s\n", prev_pc,
                          *reinterpret_cast<int32_t*>(prev_pc), buffer.start());
   }
 }
 
 
 }  // namespace disasm
 
 #endif  // V8_TARGET_ARCH_PPC