[turbofan] Introduce WordRor machine operator.

src/compiler/arm64/code-generator-arm64.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.
 
 #include "src/compiler/code-generator.h"
 
 #include "src/arm64/macro-assembler-arm64.h"
 #include "src/compiler/code-generator-impl.h"
 #include "src/compiler/gap-resolver.h"
 #include "src/compiler/node-matchers.h"
@@ skipping 250 matching lines @@
       break;
     case kArm64Shr32:
       ASSEMBLE_SHIFT(Lsr, 32);
       break;
     case kArm64Sar:
       ASSEMBLE_SHIFT(Asr, 64);
       break;
     case kArm64Sar32:
       ASSEMBLE_SHIFT(Asr, 32);
       break;
+    case kArm64Ror:
+      ASSEMBLE_SHIFT(Ror, 64);
+      break;
+    case kArm64Ror32:
+      ASSEMBLE_SHIFT(Ror, 32);
+      break;
     case kArm64CallCodeObject: {
       if (instr->InputAt(0)->IsImmediate()) {
         Handle<Code> code = Handle<Code>::cast(i.InputHeapObject(0));
         __ Call(code, RelocInfo::CODE_TARGET);
         RecordSafepoint(instr->pointer_map(), Safepoint::kSimple, 0,
                         Safepoint::kNoLazyDeopt);
       } else {
         Register reg = i.InputRegister(0);
         int entry = Code::kHeaderSize - kHeapObjectTag;
         __ Ldr(reg, MemOperand(reg, entry));
@@ skipping 547 matching lines @@
 }
 
 
 void CodeGenerator::AddNopForSmiCodeInlining() { __ movz(xzr, 0); }
 
 #undef __
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8