js/src/jit/ParallelSafetyAnalysis.h@6474c204b198 (annotated)
js/src/jit/ParallelSafetyAnalysis.h
Wed, 31 Dec 2014 06:09:35 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Wed, 31 Dec 2014 06:09:35 +0100
- changeset 0
- 6474c204b198
- permissions
- -rw-r--r--
Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.
| michael@0 | 1 | /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- |
| michael@0 | 2 | * vim: set ts=8 sts=4 et sw=4 tw=99: |
| michael@0 | 3 | * This Source Code Form is subject to the terms of the Mozilla Public |
| michael@0 | 4 | * License, v. 2.0. If a copy of the MPL was not distributed with this |
| michael@0 | 5 | * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ |
| michael@0 | 6 | |
| michael@0 | 7 | #ifndef jit_ParallelSafetyAnalysis_h |
| michael@0 | 8 | #define jit_ParallelSafetyAnalysis_h |
| michael@0 | 9 | |
| michael@0 | 10 | #include "jit/MIR.h" |
| michael@0 | 11 | |
| michael@0 | 12 | namespace js { |
| michael@0 | 13 | |
| michael@0 | 14 | class InterpreterFrame; |
| michael@0 | 15 | |
| michael@0 | 16 | namespace jit { |
| michael@0 | 17 | |
| michael@0 | 18 | class MIRGraph; |
| michael@0 | 19 | class AutoDestroyAllocator; |
| michael@0 | 20 | |
| michael@0 | 21 | // Determines whether a function is compatible for parallel execution. |
| michael@0 | 22 | // Removes basic blocks containing unsafe MIR operations from the |
| michael@0 | 23 | // graph and replaces them with MAbortPar blocks. |
| michael@0 | 24 | class ParallelSafetyAnalysis |
| michael@0 | 25 | { |
| michael@0 | 26 | MIRGenerator *mir_; |
| michael@0 | 27 | MIRGraph &graph_; |
| michael@0 | 28 | |
| michael@0 | 29 | bool removeResumePointOperands(); |
| michael@0 | 30 | void replaceOperandsOnResumePoint(MResumePoint *resumePoint, MDefinition *withDef); |
| michael@0 | 31 | |
| michael@0 | 32 | public: |
| michael@0 | 33 | ParallelSafetyAnalysis(MIRGenerator *mir, |
| michael@0 | 34 | MIRGraph &graph) |
| michael@0 | 35 | : mir_(mir), |
| michael@0 | 36 | graph_(graph) |
| michael@0 | 37 | {} |
| michael@0 | 38 | |
| michael@0 | 39 | bool analyze(); |
| michael@0 | 40 | }; |
| michael@0 | 41 | |
| michael@0 | 42 | // Code to collect list of possible call targets by scraping through |
| michael@0 | 43 | // TI and baseline data. Used to permit speculative transitive |
| michael@0 | 44 | // compilation in vm/ForkJoin. |
| michael@0 | 45 | // |
| michael@0 | 46 | // This code may clone scripts and thus may invoke the GC. Hence only |
| michael@0 | 47 | // run from the link phase, which executes on the main thread. |
| michael@0 | 48 | typedef Vector<JSScript *, 4, IonAllocPolicy> CallTargetVector; |
| michael@0 | 49 | bool AddPossibleCallees(JSContext *cx, MIRGraph &graph, CallTargetVector &targets); |
| michael@0 | 50 | |
| michael@0 | 51 | } // namespace jit |
| michael@0 | 52 | } // namespace js |
| michael@0 | 53 | |
| michael@0 | 54 | #endif /* jit_ParallelSafetyAnalysis_h */ |
