Remove unnecessary options from HTailCallThroughMegamorphicCache

src/x64/lithium-codegen-x64.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/v8.h"
 
 #if V8_TARGET_ARCH_X64
 
 #include "src/base/bits.h"
 #include "src/code-factory.h"
@@ skipping 3535 matching lines @@
 
 
 void LCodeGen::DoTailCallThroughMegamorphicCache(
     LTailCallThroughMegamorphicCache* instr) {
   Register receiver = ToRegister(instr->receiver());
   Register name = ToRegister(instr->name());
   DCHECK(receiver.is(LoadDescriptor::ReceiverRegister()));
   DCHECK(name.is(LoadDescriptor::NameRegister()));
   Register scratch = rdi;
   DCHECK(!scratch.is(receiver) && !scratch.is(name));
-  DCHECK(!FLAG_vector_ics ||
-         !AreAliased(ToRegister(instr->slot()), ToRegister(instr->vector()),
-                     scratch));
 
-  // Important for the tail-call.
-  bool must_teardown_frame = NeedsEagerFrame();
+  // The probe will tail call to a handler if found.
+  isolate()->stub_cache()->GenerateProbe(masm(), Code::LOAD_IC,
+                                         instr->hydrogen()->flags(), false,
+                                         receiver, name, scratch, no_reg);
 
-  if (!instr->hydrogen()->is_just_miss()) {
-    // The probe will tail call to a handler if found.
-    DCHECK(!instr->hydrogen()->is_keyed_load());
-    isolate()->stub_cache()->GenerateProbe(
-        masm(), Code::LOAD_IC, instr->hydrogen()->flags(), must_teardown_frame,
-        receiver, name, scratch, no_reg);
-  }
-
-  // Tail call to miss if we ended up here.
-  if (must_teardown_frame) __ leave();
-  if (instr->hydrogen()->is_keyed_load()) {
-    KeyedLoadIC::GenerateMiss(masm());
-  } else {
-    LoadIC::GenerateMiss(masm());
-  }
+  LoadIC::GenerateMiss(masm());
 }
 
 
 void LCodeGen::DoCallWithDescriptor(LCallWithDescriptor* instr) {
   DCHECK(ToRegister(instr->result()).is(rax));
 
   if (instr->hydrogen()->IsTailCall()) {
     if (NeedsEagerFrame()) __ leave();
 
     if (instr->target()->IsConstantOperand()) {
@@ skipping 2338 matching lines @@
   CallRuntime(Runtime::kPushBlockContext, 2, instr);
   RecordSafepoint(Safepoint::kNoLazyDeopt);
 }
 
 
 #undef __
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_X64