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Issue 259183002: Bulk update of Google copyright headers in source files. (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge
Patch Set: Created 6 years, 7 months ago
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1 // Copyright 2013 the V8 project authors. All rights reserved. 1 // Copyright 2013 the V8 project authors. All rights reserved.
2 // Redistribution and use in source and binary forms, with or without 2 // Use of this source code is governed by a BSD-style license that can be
3 // modification, are permitted provided that the following conditions are 3 // found in the LICENSE file.
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 4
28 #include "hydrogen-uint32-analysis.h" 5 #include "hydrogen-uint32-analysis.h"
29 6
30 namespace v8 { 7 namespace v8 {
31 namespace internal { 8 namespace internal {
32 9
33 10
34 bool HUint32AnalysisPhase::IsSafeUint32Use(HValue* val, HValue* use) { 11 bool HUint32AnalysisPhase::IsSafeUint32Use(HValue* val, HValue* use) {
35 // Operations that operate on bits are safe. 12 // Operations that operate on bits are safe.
36 if (use->IsBitwise() || use->IsShl() || use->IsSar() || use->IsShr()) { 13 if (use->IsBitwise() || use->IsShl() || use->IsSar() || use->IsShr()) {
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227 204
228 // Some phis might have been optimistically marked with kUint32 flag. 205 // Some phis might have been optimistically marked with kUint32 flag.
229 // Remove this flag from those phis that are unsafe and propagate 206 // Remove this flag from those phis that are unsafe and propagate
230 // this information transitively potentially clearing kUint32 flag 207 // this information transitively potentially clearing kUint32 flag
231 // from some non-phi operations that are used as operands to unsafe phis. 208 // from some non-phi operations that are used as operands to unsafe phis.
232 UnmarkUnsafePhis(); 209 UnmarkUnsafePhis();
233 } 210 }
234 211
235 212
236 } } // namespace v8::internal 213 } } // namespace v8::internal
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