[turbofan] Remove dead kArchTailCallJSFunction.

src/compiler/x87/code-generator-x87.cc

 // Copyright 2013 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/compilation-info.h"
 #include "src/compiler/code-generator-impl.h"
 #include "src/compiler/gap-resolver.h"
 #include "src/compiler/node-matchers.h"
@@ skipping 619 matching lines @@
       __ fninit();
       if (double_result) {
         __ fld_d(Operand(esp, 0));
         __ lea(esp, Operand(esp, kDoubleSize));
       } else {
         __ fld1();
       }
       frame_access_state()->ClearSPDelta();
       break;
     }
-    case kArchTailCallJSFunctionFromJSFunction:
-    case kArchTailCallJSFunction: {
+    case kArchTailCallJSFunctionFromJSFunction: {
       Register func = i.InputRegister(0);
       if (FLAG_debug_code) {
         // Check the function's context matches the context argument.
         __ cmp(esi, FieldOperand(func, JSFunction::kContextOffset));
         __ Assert(equal, kWrongFunctionContext);
       }
       if (FLAG_debug_code && FLAG_enable_slow_asserts) {
         __ VerifyX87StackDepth(1);
       }
       __ fstp(0);
-      if (arch_opcode == kArchTailCallJSFunctionFromJSFunction) {
-        AssemblePopArgumentsAdaptorFrame(kJavaScriptCallArgCountRegister,
-                                         no_reg, no_reg, no_reg);
-      }
+      AssemblePopArgumentsAdaptorFrame(kJavaScriptCallArgCountRegister, no_reg,
+                                       no_reg, no_reg);
       __ jmp(FieldOperand(func, JSFunction::kCodeEntryOffset));
       frame_access_state()->ClearSPDelta();
       frame_access_state()->SetFrameAccessToDefault();
       break;
     }
     case kArchPrepareCallCFunction: {
       // Frame alignment requires using FP-relative frame addressing.
       frame_access_state()->SetFrameAccessToFP();
       int const num_parameters = MiscField::decode(instr->opcode());
       __ PrepareCallCFunction(num_parameters, i.TempRegister(0));
@@ skipping 2051 matching lines @@
     int padding_size = last_lazy_deopt_pc_ + space_needed - current_pc;
     __ Nop(padding_size);
   }
 }
 
 #undef __
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8