projects / apple / javascriptcore.git / blame
| Commit | Line | Data |
|---|---|---|
| b37bf2e1 | 1 | /* |
| 81345200 | 2 | * Copyright (C) 2013 Apple Inc. All rights reserved. |
| b37bf2e1 A |
3 | * |
| 4 | * Redistribution and use in source and binary forms, with or without | |
| 5 | * modification, are permitted provided that the following conditions | |
| 6 | * are met: | |
| 7 | * 1. Redistributions of source code must retain the above copyright | |
| 8 | * notice, this list of conditions and the following disclaimer. | |
| 9 | * 2. Redistributions in binary form must reproduce the above copyright | |
| 10 | * notice, this list of conditions and the following disclaimer in the | |
| 11 | * documentation and/or other materials provided with the distribution. | |
| 12 | * | |
| 9dae56ea | 13 | * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY |
| b37bf2e1 A |
14 | * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| 15 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | |
| 9dae56ea | 16 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR |
| b37bf2e1 A |
17 | * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
| 18 | * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | |
| 19 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR | |
| 20 | * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY | |
| 21 | * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
| 22 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
| 6fe7ccc8 | 23 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| b37bf2e1 A |
24 | */ |
| 25 | ||
| 81345200 A |
26 | #ifndef DFGResurrectionForValidationPhase_h |
| 27 | #define DFGResurrectionForValidationPhase_h | |
| 6fe7ccc8 | 28 | |
| 81345200 | 29 | #if ENABLE(DFG_JIT) |
| b37bf2e1 | 30 | |
| 81345200 | 31 | #include "DFGCommon.h" |
| b37bf2e1 | 32 | |
| 81345200 | 33 | namespace JSC { namespace DFG { |
| b37bf2e1 | 34 | |
| 81345200 | 35 | class Graph; |
| 93a37866 | 36 | |
| 81345200 A |
37 | // Places a Phantom after every value-producing node, thereby disabling DCE from killing it. |
| 38 | // This is useful for validating our OSR exit machinery by instituting the requirement that | |
| 39 | // any live-in-bytecode variable should be OSR-available. Without this phase, it's impossible | |
| 40 | // to make such an assertion because our DCE is more aggressive than the bytecode liveness | |
| 41 | // analysis. | |
| 9dae56ea | 42 | |
| 81345200 A |
43 | bool performResurrectionForValidation(Graph&); |
| 44 | ||
| 45 | } } // namespace JSC::DFG | |
| 46 | ||
| 47 | #endif // ENABLE(DFG_JIT) | |
| 48 | ||
| 49 | #endif // DFGResurrectionForValidationPhase_h | |
| 6fe7ccc8 | 50 |