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

src/x64/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/macro-assembler.h"
 #include "src/serialize.h"
 
 namespace v8 {
 namespace internal {
 
 // -----------------------------------------------------------------------------
 // Implementation of CpuFeatures
 
 void CpuFeatures::ProbeImpl(bool cross_compile) {
@@ skipping 239 matching lines @@
   desc->buffer_size = buffer_size_;
   desc->instr_size = pc_offset();
   DCHECK(desc->instr_size > 0);  // Zero-size code objects upset the system.
   desc->reloc_size =
       static_cast<int>((buffer_ + buffer_size_) - reloc_info_writer.pos());
   desc->origin = this;
 }
 
 
 void Assembler::Align(int m) {
-  DCHECK(IsPowerOf2(m));
+  DCHECK(base::bits::IsPowerOfTwo32(m));
   int delta = (m - (pc_offset() & (m - 1))) & (m - 1);
   Nop(delta);
 }
 
 
 void Assembler::CodeTargetAlign() {
   Align(16);  // Preferred alignment of jump targets on x64.
 }
 
 
@@ skipping 2707 matching lines @@
 
 
 bool RelocInfo::IsInConstantPool() {
   return false;
 }
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_X64