1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/js/src/jit/ParallelSafetyAnalysis.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,54 @@
1.4 +/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
1.5 + * vim: set ts=8 sts=4 et sw=4 tw=99:
1.6 + * This Source Code Form is subject to the terms of the Mozilla Public
1.7 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.8 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.9 +
1.10 +#ifndef jit_ParallelSafetyAnalysis_h
1.11 +#define jit_ParallelSafetyAnalysis_h
1.12 +
1.13 +#include "jit/MIR.h"
1.14 +
1.15 +namespace js {
1.16 +
1.17 +class InterpreterFrame;
1.18 +
1.19 +namespace jit {
1.20 +
1.21 +class MIRGraph;
1.22 +class AutoDestroyAllocator;
1.23 +
1.24 +// Determines whether a function is compatible for parallel execution.
1.25 +// Removes basic blocks containing unsafe MIR operations from the
1.26 +// graph and replaces them with MAbortPar blocks.
1.27 +class ParallelSafetyAnalysis
1.28 +{
1.29 + MIRGenerator *mir_;
1.30 + MIRGraph &graph_;
1.31 +
1.32 + bool removeResumePointOperands();
1.33 + void replaceOperandsOnResumePoint(MResumePoint *resumePoint, MDefinition *withDef);
1.34 +
1.35 + public:
1.36 + ParallelSafetyAnalysis(MIRGenerator *mir,
1.37 + MIRGraph &graph)
1.38 + : mir_(mir),
1.39 + graph_(graph)
1.40 + {}
1.41 +
1.42 + bool analyze();
1.43 +};
1.44 +
1.45 +// Code to collect list of possible call targets by scraping through
1.46 +// TI and baseline data. Used to permit speculative transitive
1.47 +// compilation in vm/ForkJoin.
1.48 +//
1.49 +// This code may clone scripts and thus may invoke the GC. Hence only
1.50 +// run from the link phase, which executes on the main thread.
1.51 +typedef Vector<JSScript *, 4, IonAllocPolicy> CallTargetVector;
1.52 +bool AddPossibleCallees(JSContext *cx, MIRGraph &graph, CallTargetVector &targets);
1.53 +
1.54 +} // namespace jit
1.55 +} // namespace js
1.56 +
1.57 +#endif /* jit_ParallelSafetyAnalysis_h */
