[stubs] Migrate ToLengthStub to TurboFan.

src/ppc/code-stubs-ppc.cc

 // Copyright 2014 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_PPC
 
 #include "src/code-stubs.h"
 #include "src/api-arguments.h"
 #include "src/base/bits.h"
 #include "src/bootstrapper.h"
@@ skipping 2736 matching lines @@
   __ And(r0, r5, Operand(String::kContainsCachedArrayIndexMask), SetRC);
   __ bne(&runtime, cr0);
   __ IndexFromHash(r5, r3);
   __ blr();
 
   __ bind(&runtime);
   __ push(r3);  // Push argument.
   __ TailCallRuntime(Runtime::kStringToNumber);
 }
 
-void ToLengthStub::Generate(MacroAssembler* masm) {
-  // The ToLength stub takes one argument in r3.
-  Label not_smi;
-  __ JumpIfNotSmi(r3, &not_smi);
-  STATIC_ASSERT(kSmiTag == 0);
-  __ cmpi(r3, Operand::Zero());
-  if (CpuFeatures::IsSupported(ISELECT)) {
-    __ isel(lt, r3, r0, r3);
-  } else {
-    Label positive;
-    __ bgt(&positive);
-    __ li(r3, Operand::Zero());
-    __ bind(&positive);
-  }
-  __ Ret();
-  __ bind(&not_smi);
-
-  __ push(r3);  // Push argument.
-  __ TailCallRuntime(Runtime::kToLength);
-}
-
-
 void ToStringStub::Generate(MacroAssembler* masm) {
   // The ToString stub takes one argument in r3.
   Label is_number;
   __ JumpIfSmi(r3, &is_number);
 
   __ CompareObjectType(r3, r4, r4, FIRST_NONSTRING_TYPE);
   // r3: receiver
   // r4: receiver instance type
   __ Ret(lt);
 
@@ skipping 3020 matching lines @@
   CallApiFunctionAndReturn(masm, api_function_address, thunk_ref,
                            kStackUnwindSpace, NULL, return_value_operand, NULL);
 }
 
 
 #undef __
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_PPC