1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/js/src/jit/JitOptions.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,88 @@
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_JitOptions_h
1.11 +#define jit_JitOptions_h
1.12 +
1.13 +#include "jit/IonTypes.h"
1.14 +#include "js/TypeDecls.h"
1.15 +
1.16 +#ifdef JS_ION
1.17 +
1.18 +namespace js {
1.19 +namespace jit {
1.20 +
1.21 +// Longer scripts can only be compiled off thread, as these compilations
1.22 +// can be expensive and stall the main thread for too long.
1.23 +static const uint32_t MAX_OFF_THREAD_SCRIPT_SIZE = 100 * 1000;
1.24 +static const uint32_t MAX_MAIN_THREAD_SCRIPT_SIZE = 2 * 1000;
1.25 +static const uint32_t MAX_MAIN_THREAD_LOCALS_AND_ARGS = 256;
1.26 +
1.27 +// DOM Worker runtimes don't have off thread compilation, but can also compile
1.28 +// larger scripts since this doesn't stall the main thread.
1.29 +static const uint32_t MAX_DOM_WORKER_SCRIPT_SIZE = 16 * 1000;
1.30 +static const uint32_t MAX_DOM_WORKER_LOCALS_AND_ARGS = 2048;
1.31 +
1.32 +// Possible register allocators which may be used.
1.33 +enum IonRegisterAllocator {
1.34 + RegisterAllocator_LSRA,
1.35 + RegisterAllocator_Backtracking,
1.36 + RegisterAllocator_Stupid
1.37 +};
1.38 +
1.39 +enum IonGvnKind {
1.40 + GVN_Optimistic,
1.41 + GVN_Pessimistic
1.42 +};
1.43 +
1.44 +struct JitOptions
1.45 +{
1.46 + bool checkGraphConsistency;
1.47 +#ifdef CHECK_OSIPOINT_REGISTERS
1.48 + bool checkOsiPointRegisters;
1.49 +#endif
1.50 + bool checkRangeAnalysis;
1.51 + bool compileTryCatch;
1.52 + bool disableGvn;
1.53 + bool disableLicm;
1.54 + bool disableInlining;
1.55 + bool disableEdgeCaseAnalysis;
1.56 + bool disableRangeAnalysis;
1.57 + bool disableUce;
1.58 + bool disableEaa;
1.59 + bool eagerCompilation;
1.60 + bool forceDefaultIonUsesBeforeCompile;
1.61 + uint32_t forcedDefaultIonUsesBeforeCompile;
1.62 + bool forceGvnKind;
1.63 + IonGvnKind forcedGvnKind;
1.64 + bool forceRegisterAllocator;
1.65 + IonRegisterAllocator forcedRegisterAllocator;
1.66 + bool limitScriptSize;
1.67 + bool osr;
1.68 + uint32_t baselineUsesBeforeCompile;
1.69 + uint32_t exceptionBailoutThreshold;
1.70 + uint32_t frequentBailoutThreshold;
1.71 + uint32_t maxStackArgs;
1.72 + uint32_t osrPcMismatchesBeforeRecompile;
1.73 + uint32_t smallFunctionMaxBytecodeLength_;
1.74 + uint32_t usesBeforeCompilePar;
1.75 + bool profileInlineFrames;
1.76 +
1.77 + JitOptions();
1.78 + bool isSmallFunction(JSScript *script) const;
1.79 + void setEagerCompilation();
1.80 + void setUsesBeforeCompile(uint32_t useCount);
1.81 + void resetUsesBeforeCompile();
1.82 +};
1.83 +
1.84 +extern JitOptions js_JitOptions;
1.85 +
1.86 +} // namespace jit
1.87 +} // namespace js
1.88 +
1.89 +#endif // JS_ION
1.90 +
1.91 +#endif /* jit_JitOptions_h */
