Remove receiver conversion from function prologue

src/crankshaft/arm64/lithium-codegen-arm64.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/crankshaft/arm64/lithium-codegen-arm64.h"
 
 #include "src/arm64/frames-arm64.h"
 #include "src/base/bits.h"
 #include "src/code-factory.h"
 #include "src/code-stubs.h"
@@ skipping 610 matching lines @@
 
   if (info()->IsOptimizing()) {
     ProfileEntryHookStub::MaybeCallEntryHook(masm_);
 
 #ifdef DEBUG
     if (strlen(FLAG_stop_at) > 0 &&
         info()->literal()->name()->IsUtf8EqualTo(CStrVector(FLAG_stop_at))) {
       __ Debug("stop-at", __LINE__, BREAK);
     }
 #endif
-
-    // Sloppy mode functions and builtins need to replace the receiver with the
-    // global proxy when called as functions (without an explicit receiver
-    // object).
-    if (info()->MustReplaceUndefinedReceiverWithGlobalProxy()) {
-      Label ok;
-      int receiver_offset = info_->scope()->num_parameters() * kXRegSize;
-      __ Peek(x10, receiver_offset);
-      __ JumpIfNotRoot(x10, Heap::kUndefinedValueRootIndex, &ok);
-
-      __ Ldr(x10, GlobalObjectMemOperand());
-      __ Ldr(x10, FieldMemOperand(x10, JSGlobalObject::kGlobalProxyOffset));
-      __ Poke(x10, receiver_offset);
-
-      __ Bind(&ok);
-    }
   }
 
   DCHECK(__ StackPointer().Is(jssp));
   info()->set_prologue_offset(masm_->pc_offset());
   if (NeedsEagerFrame()) {
     if (info()->IsStub()) {
       __ StubPrologue();
     } else {
       __ Prologue(info()->IsCodePreAgingActive());
     }
@@ skipping 5307 matching lines @@
   Handle<ScopeInfo> scope_info = instr->scope_info();
   __ Push(scope_info);
   __ Push(ToRegister(instr->function()));
   CallRuntime(Runtime::kPushBlockContext, 2, instr);
   RecordSafepoint(Safepoint::kNoLazyDeopt);
 }
 
 
 }  // namespace internal
 }  // namespace v8