[turbofan] don't call out to c

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 113 matching lines @@
       __ asm_instr(i.OutputRegister##width(), i.InputRegister##width(0), imm); \
     }                                                                          \
   } while (0);
 
 
 // Assembles an instruction after register allocation, producing machine code.
 void CodeGenerator::AssembleArchInstruction(Instruction* instr) {
   Arm64OperandConverter i(this, instr);
   InstructionCode opcode = instr->opcode();
   switch (ArchOpcodeField::decode(opcode)) {
-    case kArchCallAddress: {
-      DirectCEntryStub stub(isolate());
-      stub.GenerateCall(masm(), i.InputRegister(0));
-      break;
-    }
     case kArchCallCodeObject: {
       if (instr->InputAt(0)->IsImmediate()) {
         __ Call(Handle<Code>::cast(i.InputHeapObject(0)),
                 RelocInfo::CODE_TARGET);
       } else {
         Register target = i.InputRegister(0);
         __ Add(target, target, Code::kHeaderSize - kHeapObjectTag);
         __ Call(target);
       }
       AddSafepointAndDeopt(instr);
       break;
     }
     case kArchCallJSFunction: {
       Register func = i.InputRegister(0);
       if (FLAG_debug_code) {
         // Check the function's context matches the context argument.
         UseScratchRegisterScope scope(masm());
         Register temp = scope.AcquireX();
         __ Ldr(temp, FieldMemOperand(func, JSFunction::kContextOffset));
         __ cmp(cp, temp);
         __ Assert(eq, kWrongFunctionContext);
       }
       __ Ldr(x10, FieldMemOperand(func, JSFunction::kCodeEntryOffset));
       __ Call(x10);
       AddSafepointAndDeopt(instr);
       break;
     }
-    case kArchDrop: {
-      int words = MiscField::decode(instr->opcode());
-      __ Drop(words);
-      break;
-    }
     case kArchJmp:
       __ B(code_->GetLabel(i.InputBlock(0)));
       break;
     case kArchNop:
       // don't emit code for nops.
       break;
     case kArchRet:
       AssembleReturn();
       break;
     case kArchTruncateDoubleToI:
@@ skipping 671 matching lines @@
 }
 
 
 void CodeGenerator::AddNopForSmiCodeInlining() { __ movz(xzr, 0); }
 
 #undef __
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8