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f9bf01c6 | 1 | /* |
ed1e77d3 | 2 | * Copyright (C) 2014 Apple Inc. All rights reserved. |
f9bf01c6 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 | * | |
13 | * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY | |
14 | * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
15 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | |
16 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR | |
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 | |
23 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
24 | */ | |
25 | ||
ed1e77d3 A |
26 | #ifndef DFGObjectAllocationSinkingPhase_h |
27 | #define DFGObjectAllocationSinkingPhase_h | |
f9bf01c6 | 28 | |
6fe7ccc8 | 29 | #if ENABLE(DFG_JIT) |
f9bf01c6 | 30 | |
6fe7ccc8 | 31 | namespace JSC { namespace DFG { |
f9bf01c6 | 32 | |
6fe7ccc8 | 33 | class Graph; |
14957cd0 | 34 | |
ed1e77d3 A |
35 | // Sinks object allocations down to their uses. This will sink the allocations over OSR exits, by |
36 | // replacing all stores to those objects with store hints so that OSR exit can materialize the | |
37 | // object. This may sink allocations past returns, creating control flow paths along which the | |
38 | // objects are not allocated at all. Replaces all uses of the objects' fields with SSA data flow. | |
14957cd0 | 39 | |
ed1e77d3 | 40 | bool performObjectAllocationSinking(Graph&); |
f9bf01c6 | 41 | |
6fe7ccc8 | 42 | } } // namespace JSC::DFG |
f9bf01c6 | 43 | |
6fe7ccc8 A |
44 | #endif // ENABLE(DFG_JIT) |
45 | ||
ed1e77d3 | 46 | #endif // DFGObjectAllocationSinkingPhase_h |
14957cd0 | 47 |