[turbofan] Implemented the RoundUint64ToFloat32 TurboFan operator for x64, arm64,

src/ppc/assembler-ppc.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 2151 matching lines @@
   emit(EXT4 | FCFID | frt.code() * B21 | frb.code() * B11 | rc);
 }
 
 
 void Assembler::fcfidu(const DoubleRegister frt, const DoubleRegister frb,
                        RCBit rc) {
   emit(EXT4 | FCFIDU | frt.code() * B21 | frb.code() * B11 | rc);
 }
 
 
+void Assembler::fcfidus(const DoubleRegister frt, const DoubleRegister frb,
+                        RCBit rc) {
+  emit(EXT3 | FCFIDU | frt.code() * B21 | frb.code() * B11 | rc);
+}
+
+
 void Assembler::fcfids(const DoubleRegister frt, const DoubleRegister frb,
                        RCBit rc) {
   emit(EXT3 | FCFID | frt.code() * B21 | frb.code() * B11 | rc);
 }
 
 
 void Assembler::fctid(const DoubleRegister frt, const DoubleRegister frb,
                       RCBit rc) {
   emit(EXT4 | FCTID | frt.code() * B21 | frb.code() * B11 | rc);
 }
@@ skipping 255 matching lines @@
 
     trampoline_ = Trampoline(pc_offset() - size, tracked_branch_count_);
   }
 }
 
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_PPC