[x86] Avoid memory form of PUSH/CALL for ATOM.

src/x64/macro-assembler-x64.cc

 // Copyright 2012 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/base/division-by-constant.h"
@@ skipping 3043 matching lines @@
 #endif
   LoadAddress(kScratchRegister, ext);
   call(kScratchRegister);
 #ifdef DEBUG
   CHECK_EQ(end_position, pc_offset());
 #endif
 }
 
 
 void MacroAssembler::Call(const Operand& op) {
-  if (kPointerSize == kInt64Size) {
+  if (kPointerSize == kInt64Size && !FLAG_intel_atom) {
     call(op);
   } else {
     movp(kScratchRegister, op);
     call(kScratchRegister);
   }
 }
 
 
 void MacroAssembler::Call(Address destination, RelocInfo::Mode rmode) {
 #ifdef DEBUG
@@ skipping 2321 matching lines @@
   if (mag.shift > 0) sarl(rdx, Immediate(mag.shift));
   movl(rax, dividend);
   shrl(rax, Immediate(31));
   addl(rdx, rax);
 }
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_X64