[turbofan] Remove bogus constant materialization from frame.

src/compiler/code-generator.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/address-map.h"
 #include "src/base/adapters.h"
 #include "src/compilation-info.h"
 #include "src/compiler/code-generator-impl.h"
@@ skipping 263 matching lines @@
       // knowledge about those fields anyway.
       if (index < stackSlotToSpillSlotDelta) continue;
       safepoint.DefinePointerSlot(index, zone());
     } else if (operand.IsRegister() && (kind & Safepoint::kWithRegisters)) {
       Register reg = LocationOperand::cast(operand).GetRegister();
       safepoint.DefinePointerRegister(reg, zone());
     }
   }
 }
 
-bool CodeGenerator::IsMaterializableFromFrame(Handle<HeapObject> object,
-                                              int* slot_return) {
-  if (linkage()->GetIncomingDescriptor()->IsJSFunctionCall()) {
-    if (*object == info()->context() && !info()->is_osr()) {
-      *slot_return = Frame::kContextSlot;
-      return true;
-    } else if (object.is_identical_to(info()->closure())) {
-      *slot_return = Frame::kJSFunctionSlot;
-      return true;
-    }
-  }
-  return false;
-}
-
-
 bool CodeGenerator::IsMaterializableFromRoot(
     Handle<HeapObject> object, Heap::RootListIndex* index_return) {
   const CallDescriptor* incoming_descriptor =
       linkage()->GetIncomingDescriptor();
   if (incoming_descriptor->flags() & CallDescriptor::kCanUseRoots) {
     RootIndexMap map(isolate());
     int root_index = map.Lookup(*object);
     if (root_index != RootIndexMap::kInvalidRootIndex) {
       *index_return = static_cast<Heap::RootListIndex>(root_index);
       return true;
@@ skipping 632 matching lines @@
     : frame_(gen->frame()), masm_(gen->masm()), next_(gen->ools_) {
   gen->ools_ = this;
 }
 
 
 OutOfLineCode::~OutOfLineCode() {}
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8