| // 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 |
| // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| // 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, |
| // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| |
| #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 |