[es6] Tail calls support.

src/ia32/code-stubs-ia32.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.
 
 #if V8_TARGET_ARCH_IA32
 
 #include "src/base/bits.h"
 #include "src/bootstrapper.h"
 #include "src/code-stubs.h"
 #include "src/codegen.h"
@@ skipping 2129 matching lines @@
   // convincing us that we have a monomorphic JSFunction.
   __ JumpIfSmi(edi, &extra_checks_or_miss);
 
   // Increment the call count for monomorphic function calls.
   __ add(FieldOperand(ebx, edx, times_half_pointer_size,
                       FixedArray::kHeaderSize + kPointerSize),
          Immediate(Smi::FromInt(CallICNexus::kCallCountIncrement)));
 
   __ bind(&call_function);
   __ Set(eax, argc);
-  __ Jump(masm->isolate()->builtins()->CallFunction(convert_mode()),
+  __ Jump(masm->isolate()->builtins()->CallFunction(convert_mode(),
+                                                    tail_call_mode()),
           RelocInfo::CODE_TARGET);
 
   __ bind(&extra_checks_or_miss);
   Label uninitialized, miss, not_allocation_site;
 
   __ cmp(ecx, Immediate(TypeFeedbackVector::MegamorphicSentinel(isolate)));
   __ j(equal, &call);
 
   // Check if we have an allocation site.
   __ CompareRoot(FieldOperand(ecx, HeapObject::kMapOffset),
@@ skipping 18 matching lines @@
   // to handle it here. More complex cases are dealt with in the runtime.
   __ AssertNotSmi(ecx);
   __ CmpObjectType(ecx, JS_FUNCTION_TYPE, ecx);
   __ j(not_equal, &miss);
   __ mov(
       FieldOperand(ebx, edx, times_half_pointer_size, FixedArray::kHeaderSize),
       Immediate(TypeFeedbackVector::MegamorphicSentinel(isolate)));
 
   __ bind(&call);
   __ Set(eax, argc);
-  __ Jump(masm->isolate()->builtins()->Call(convert_mode()),
+  __ Jump(masm->isolate()->builtins()->Call(convert_mode(), tail_call_mode()),
           RelocInfo::CODE_TARGET);
 
   __ bind(&uninitialized);
 
   // We are going monomorphic, provided we actually have a JSFunction.
   __ JumpIfSmi(edi, &miss);
 
   // Goto miss case if we do not have a function.
   __ CmpObjectType(edi, JS_FUNCTION_TYPE, ecx);
   __ j(not_equal, &miss);
@@ skipping 3546 matching lines @@
                            return_value_operand, NULL);
 }
 
 
 #undef __
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_IA32