| | 1 | /* |
| | 2 | * Copyright (C) 2013, 2015 Apple Inc. All rights reserved. |
| | 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 | |
| | 26 | #include "config.h" |
| | 27 | #include "DFGCommonData.h" |
| | 28 | |
| | 29 | #if ENABLE(DFG_JIT) |
| | 30 | |
| | 31 | #include "CodeBlock.h" |
| | 32 | #include "DFGNode.h" |
| | 33 | #include "DFGPlan.h" |
| | 34 | #include "JSCInlines.h" |
| | 35 | #include "TrackedReferences.h" |
| | 36 | #include "VM.h" |
| | 37 | |
| | 38 | namespace JSC { namespace DFG { |
| | 39 | |
| | 40 | void CommonData::notifyCompilingStructureTransition(Plan& plan, CodeBlock* codeBlock, Node* node) |
| | 41 | { |
| | 42 | plan.transitions.addLazily( |
| | 43 | codeBlock, |
| | 44 | node->origin.semantic.codeOriginOwner(), |
| | 45 | node->transition()->previous, |
| | 46 | node->transition()->next); |
| | 47 | } |
| | 48 | |
| | 49 | unsigned CommonData::addCodeOrigin(CodeOrigin codeOrigin) |
| | 50 | { |
| | 51 | if (codeOrigins.isEmpty() |
| | 52 | || codeOrigins.last() != codeOrigin) |
| | 53 | codeOrigins.append(codeOrigin); |
| | 54 | unsigned index = codeOrigins.size() - 1; |
| | 55 | ASSERT(codeOrigins[index] == codeOrigin); |
| | 56 | return index; |
| | 57 | } |
| | 58 | |
| | 59 | void CommonData::shrinkToFit() |
| | 60 | { |
| | 61 | codeOrigins.shrinkToFit(); |
| | 62 | weakReferences.shrinkToFit(); |
| | 63 | transitions.shrinkToFit(); |
| | 64 | } |
| | 65 | |
| | 66 | bool CommonData::invalidate() |
| | 67 | { |
| | 68 | if (!isStillValid) |
| | 69 | return false; |
| | 70 | for (unsigned i = jumpReplacements.size(); i--;) |
| | 71 | jumpReplacements[i].fire(); |
| | 72 | isStillValid = false; |
| | 73 | return true; |
| | 74 | } |
| | 75 | |
| | 76 | void CommonData::validateReferences(const TrackedReferences& trackedReferences) |
| | 77 | { |
| | 78 | if (InlineCallFrameSet* set = inlineCallFrames.get()) { |
| | 79 | for (InlineCallFrame* inlineCallFrame : *set) { |
| | 80 | for (ValueRecovery& recovery : inlineCallFrame->arguments) { |
| | 81 | if (recovery.isConstant()) |
| | 82 | trackedReferences.check(recovery.constant()); |
| | 83 | } |
| | 84 | |
| | 85 | if (ScriptExecutable* executable = inlineCallFrame->executable.get()) |
| | 86 | trackedReferences.check(executable); |
| | 87 | |
| | 88 | if (inlineCallFrame->calleeRecovery.isConstant()) |
| | 89 | trackedReferences.check(inlineCallFrame->calleeRecovery.constant()); |
| | 90 | } |
| | 91 | } |
| | 92 | } |
| | 93 | |
| | 94 | } } // namespace JSC::DFG |
| | 95 | |
| | 96 | #endif // ENABLE(DFG_JIT) |
| | 97 | |
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