diff options
Diffstat (limited to 'chromium/v8/src/hydrogen-range-analysis.h')
-rw-r--r-- | chromium/v8/src/hydrogen-range-analysis.h | 45 |
1 files changed, 18 insertions, 27 deletions
diff --git a/chromium/v8/src/hydrogen-range-analysis.h b/chromium/v8/src/hydrogen-range-analysis.h index a1e9737c5e0..1269ec7529c 100644 --- a/chromium/v8/src/hydrogen-range-analysis.h +++ b/chromium/v8/src/hydrogen-range-analysis.h @@ -1,34 +1,11 @@ // Copyright 2013 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. +// Use of this source code is governed by a BSD-style license that can be +// found in the LICENSE file. #ifndef V8_HYDROGEN_RANGE_ANALYSIS_H_ #define V8_HYDROGEN_RANGE_ANALYSIS_H_ -#include "hydrogen.h" +#include "src/hydrogen.h" namespace v8 { namespace internal { @@ -37,7 +14,9 @@ namespace internal { class HRangeAnalysisPhase : public HPhase { public: explicit HRangeAnalysisPhase(HGraph* graph) - : HPhase("H_Range analysis", graph), changed_ranges_(16, zone()) { } + : HPhase("H_Range analysis", graph), changed_ranges_(16, zone()), + in_worklist_(graph->GetMaximumValueID(), zone()), + worklist_(32, zone()) {} void Run(); @@ -49,8 +28,20 @@ class HRangeAnalysisPhase : public HPhase { void InferRange(HValue* value); void RollBackTo(int index); void AddRange(HValue* value, Range* range); + void AddToWorklist(HValue* value) { + if (in_worklist_.Contains(value->id())) return; + in_worklist_.Add(value->id()); + worklist_.Add(value, zone()); + } + void PropagateMinusZeroChecks(HValue* value); + void PoisonRanges(); ZoneList<HValue*> changed_ranges_; + + BitVector in_worklist_; + ZoneList<HValue*> worklist_; + + DISALLOW_COPY_AND_ASSIGN(HRangeAnalysisPhase); }; |