machenbach@chromium.org | c1789ee | 2013-07-05 07:09:57 +0000 | [diff] [blame] | 1 | // Copyright 2013 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 | #ifndef V8_HYDROGEN_RANGE_ANALYSIS_H_ |
| 29 | #define V8_HYDROGEN_RANGE_ANALYSIS_H_ |
| 30 | |
| 31 | #include "hydrogen.h" |
| 32 | |
| 33 | namespace v8 { |
| 34 | namespace internal { |
| 35 | |
| 36 | |
| 37 | class HRangeAnalysisPhase : public HPhase { |
| 38 | public: |
| 39 | explicit HRangeAnalysisPhase(HGraph* graph) |
| 40 | : HPhase("H_Range analysis", graph), changed_ranges_(16, zone()) { } |
| 41 | |
jkummerow@chromium.org | 1048047 | 2013-07-17 08:22:15 +0000 | [diff] [blame] | 42 | void Run(); |
machenbach@chromium.org | c1789ee | 2013-07-05 07:09:57 +0000 | [diff] [blame] | 43 | |
| 44 | private: |
| 45 | void TraceRange(const char* msg, ...); |
mstarzinger@chromium.org | e0e1b0d | 2013-07-08 08:38:06 +0000 | [diff] [blame] | 46 | void InferControlFlowRange(HCompareNumericAndBranch* test, |
| 47 | HBasicBlock* dest); |
machenbach@chromium.org | c1789ee | 2013-07-05 07:09:57 +0000 | [diff] [blame] | 48 | void UpdateControlFlowRange(Token::Value op, HValue* value, HValue* other); |
| 49 | void InferRange(HValue* value); |
| 50 | void RollBackTo(int index); |
| 51 | void AddRange(HValue* value, Range* range); |
| 52 | |
| 53 | ZoneList<HValue*> changed_ranges_; |
| 54 | }; |
| 55 | |
| 56 | |
| 57 | } } // namespace v8::internal |
| 58 | |
| 59 | #endif // V8_HYDROGEN_RANGE_ANALYSIS_H_ |