blob: 6a3b05cc86d98b5758ab9115a94f02d6ec798b6b [file] [log] [blame]
sgjesse@chromium.orgb302e562010-02-03 11:26:59 +00001// Copyright 2010 the V8 project authors. All rights reserved.
2// Redistribution and use in source and binary forms, with or without
3// modification, are permitted provided that the following conditions are
4// met:
5//
6// * Redistributions of source code must retain the above copyright
7// notice, this list of conditions and the following disclaimer.
8// * Redistributions in binary form must reproduce the above
9// copyright notice, this list of conditions and the following
10// disclaimer in the documentation and/or other materials provided
11// with the distribution.
12// * Neither the name of Google Inc. nor the names of its
13// contributors may be used to endorse or promote products derived
14// from this software without specific prior written permission.
15//
16// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
17// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
18// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
19// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
20// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
21// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
22// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
26// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27
28#include "v8.h"
29
30#include "data-flow.h"
vegorov@chromium.orgf8372902010-03-15 10:26:20 +000031#include "scopes.h"
sgjesse@chromium.orgb302e562010-02-03 11:26:59 +000032
33namespace v8 {
34namespace internal {
35
fschneider@chromium.org086aac62010-03-17 13:18:24 +000036#ifdef DEBUG
37void BitVector::Print() {
38 bool first = true;
39 PrintF("{");
40 for (int i = 0; i < length(); i++) {
41 if (Contains(i)) {
42 if (!first) PrintF(",");
43 first = false;
kmillikin@chromium.orgf05f2912010-09-30 10:07:24 +000044 PrintF("%d", i);
fschneider@chromium.org086aac62010-03-17 13:18:24 +000045 }
46 }
47 PrintF("}");
48}
49#endif
50
51
kasperl@chromium.orga5551262010-12-07 12:49:48 +000052void BitVector::Iterator::Advance() {
53 current_++;
54 uint32_t val = current_value_;
55 while (val == 0) {
56 current_index_++;
57 if (Done()) return;
58 val = target_->data_[current_index_];
59 current_ = current_index_ << 5;
60 }
61 val = SkipZeroBytes(val);
62 val = SkipZeroBits(val);
63 current_value_ = val >> 1;
64}
65
sgjesse@chromium.orgb302e562010-02-03 11:26:59 +000066} } // namespace v8::internal