[es6] Tail calls support.

src/mips/code-stubs-mips.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_MIPS
 
 #include "src/base/bits.h"
 #include "src/bootstrapper.h"
 #include "src/code-stubs.h"
 #include "src/codegen.h"
@@ skipping 2635 matching lines @@
   // convincing us that we have a monomorphic JSFunction.
   __ JumpIfSmi(a1, &extra_checks_or_miss);
 
   // Increment the call count for monomorphic function calls.
   __ Lsa(at, a2, a3, kPointerSizeLog2 - kSmiTagSize);
   __ lw(a3, FieldMemOperand(at, FixedArray::kHeaderSize + kPointerSize));
   __ Addu(a3, a3, Operand(Smi::FromInt(CallICNexus::kCallCountIncrement)));
   __ sw(a3, FieldMemOperand(at, FixedArray::kHeaderSize + kPointerSize));
 
   __ bind(&call_function);
-  __ Jump(masm->isolate()->builtins()->CallFunction(convert_mode()),
+  __ Jump(masm->isolate()->builtins()->CallFunction(convert_mode(),
+                                                    tail_call_mode()),
           RelocInfo::CODE_TARGET, al, zero_reg, Operand(zero_reg),
           USE_DELAY_SLOT);
   __ li(a0, Operand(argc));  // In delay slot.
 
   __ bind(&extra_checks_or_miss);
   Label uninitialized, miss, not_allocation_site;
 
   __ LoadRoot(at, Heap::kmegamorphic_symbolRootIndex);
   __ Branch(&call, eq, t0, Operand(at));
 
@@ skipping 18 matching lines @@
   // We are going megamorphic. If the feedback is a JSFunction, it is fine
   // to handle it here. More complex cases are dealt with in the runtime.
   __ AssertNotSmi(t0);
   __ GetObjectType(t0, t1, t1);
   __ Branch(&miss, ne, t1, Operand(JS_FUNCTION_TYPE));
   __ Lsa(t0, a2, a3, kPointerSizeLog2 - kSmiTagSize);
   __ LoadRoot(at, Heap::kmegamorphic_symbolRootIndex);
   __ sw(at, FieldMemOperand(t0, FixedArray::kHeaderSize));
 
   __ bind(&call);
-  __ Jump(masm->isolate()->builtins()->Call(convert_mode()),
+  __ Jump(masm->isolate()->builtins()->Call(convert_mode(), tail_call_mode()),
           RelocInfo::CODE_TARGET, al, zero_reg, Operand(zero_reg),
           USE_DELAY_SLOT);
   __ li(a0, Operand(argc));  // In delay slot.
 
   __ bind(&uninitialized);
 
   // We are going monomorphic, provided we actually have a JSFunction.
   __ JumpIfSmi(a1, &miss);
 
   // Goto miss case if we do not have a function.
@@ skipping 2911 matching lines @@
                            return_value_operand, NULL);
 }
 
 
 #undef __
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_MIPS