First step to cleanup the power-of-2 mess.

src/ic/ic.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"
 
 #include "src/accessors.h"
 #include "src/api.h"
 #include "src/arguments.h"
+#include "src/base/bits.h"
 #include "src/codegen.h"
 #include "src/conversions.h"
 #include "src/execution.h"
 #include "src/ic/call-optimization.h"
 #include "src/ic/handler-compiler.h"
 #include "src/ic/ic-inl.h"
 #include "src/ic/ic-compiler.h"
 #include "src/ic/stub-cache.h"
 #include "src/prototype.h"
 #include "src/runtime.h"
@@ skipping 2429 matching lines @@
 void BinaryOpIC::State::Update(Handle<Object> left, Handle<Object> right,
                                Handle<Object> result) {
   ExtraICState old_extra_ic_state = GetExtraICState();
 
   left_kind_ = UpdateKind(left, left_kind_);
   right_kind_ = UpdateKind(right, right_kind_);
 
   int32_t fixed_right_arg_value = 0;
   bool has_fixed_right_arg =
       op_ == Token::MOD && right->ToInt32(&fixed_right_arg_value) &&
-      fixed_right_arg_value > 0 && IsPowerOf2(fixed_right_arg_value) &&
+      fixed_right_arg_value > 0 &&
+      base::bits::IsPowerOfTwo32(fixed_right_arg_value) &&
       FixedRightArgValueField::is_valid(WhichPowerOf2(fixed_right_arg_value)) &&
       (left_kind_ == SMI || left_kind_ == INT32) &&
       (result_kind_ == NONE || !fixed_right_arg_.has_value);
   fixed_right_arg_ = Maybe<int32_t>(has_fixed_right_arg, fixed_right_arg_value);
 
   result_kind_ = UpdateKind(result, result_kind_);
 
   if (!Token::IsTruncatingBinaryOp(op_)) {
     Kind input_kind = Max(left_kind_, right_kind_);
     if (result_kind_ < input_kind && input_kind <= NUMBER) {
@@ skipping 726 matching lines @@
 static const Address IC_utilities[] = {
 #define ADDR(name) FUNCTION_ADDR(name),
     IC_UTIL_LIST(ADDR) NULL
 #undef ADDR
 };
 
 
 Address IC::AddressFromUtilityId(IC::UtilityId id) { return IC_utilities[id]; }
 }
 }  // namespace v8::internal