root/src/data-flow.cc

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DEFINITIONS

This source file includes following definitions.
  1. Print
  2. Advance

// Copyright 2010 the V8 project authors. All rights reserved.
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
//     * Redistributions of source code must retain the above copyright
//       notice, this list of conditions and the following disclaimer.
//     * Redistributions in binary form must reproduce the above
//       copyright notice, this list of conditions and the following
//       disclaimer in the documentation and/or other materials provided
//       with the distribution.
//     * Neither the name of Google Inc. nor the names of its
//       contributors may be used to endorse or promote products derived
//       from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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#include "v8.h"

#include "data-flow.h"
#include "scopes.h"

namespace v8 {
namespace internal {

#ifdef DEBUG
void BitVector::Print() {
  bool first = true;
  PrintF("{");
  for (int i = 0; i < length(); i++) {
    if (Contains(i)) {
      if (!first) PrintF(",");
      first = false;
      PrintF("%d", i);
    }
  }
  PrintF("}");
}
#endif


void BitVector::Iterator::Advance() {
  current_++;
  uint32_t val = current_value_;
  while (val == 0) {
    current_index_++;
    if (Done()) return;
    val = target_->data_[current_index_];
    current_ = current_index_ << 5;
  }
  val = SkipZeroBytes(val);
  val = SkipZeroBits(val);
  current_value_ = val >> 1;
}

} }  // namespace v8::internal

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