blob: 50402da087e445678182044e756a12e61625211d (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
|
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
* vim: set ts=8 sts=2 et sw=2 tw=80:
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef jit_JitOptions_h
#define jit_JitOptions_h
#include "mozilla/Maybe.h"
#include "jit/IonTypes.h"
#include "js/TypeDecls.h"
namespace js {
namespace jit {
// Possible register allocators which may be used.
enum IonRegisterAllocator {
RegisterAllocator_Backtracking,
RegisterAllocator_Testbed,
};
static inline mozilla::Maybe<IonRegisterAllocator> LookupRegisterAllocator(
const char* name) {
if (!strcmp(name, "backtracking")) {
return mozilla::Some(RegisterAllocator_Backtracking);
}
if (!strcmp(name, "testbed")) {
return mozilla::Some(RegisterAllocator_Testbed);
}
return mozilla::Nothing();
}
struct DefaultJitOptions {
bool checkGraphConsistency;
#ifdef CHECK_OSIPOINT_REGISTERS
bool checkOsiPointRegisters;
#endif
bool checkRangeAnalysis;
bool runExtraChecks;
bool disableAma;
bool disableEaa;
bool disableEdgeCaseAnalysis;
bool disableGvn;
bool disableInlining;
bool disableLicm;
bool disablePgo;
bool disableInstructionReordering;
bool disableRangeAnalysis;
bool disableRecoverIns;
bool disableScalarReplacement;
bool disableCacheIR;
bool disableSink;
bool disableBailoutLoopCheck;
bool baselineInterpreter;
bool baselineJit;
bool ion;
bool warpAsync;
bool warpGenerator;
bool jitForTrustedPrincipals;
bool nativeRegExp;
bool forceInlineCaches;
bool fullDebugChecks;
bool limitScriptSize;
bool osr;
bool wasmFoldOffsets;
bool wasmDelayTier2;
#ifdef JS_TRACE_LOGGING
bool enableTraceLogger;
#endif
bool traceRegExpParser;
bool traceRegExpAssembler;
bool traceRegExpInterpreter;
bool traceRegExpPeephole;
bool enableWasmJitExit;
bool enableWasmJitEntry;
bool enableWasmIonFastCalls;
#ifdef WASM_CODEGEN_DEBUG
bool enableWasmImportCallSpew;
bool enableWasmFuncCallSpew;
#endif
uint32_t baselineInterpreterWarmUpThreshold;
uint32_t baselineJitWarmUpThreshold;
uint32_t trialInliningWarmUpThreshold;
uint32_t trialInliningInitialWarmUpCount;
uint32_t normalIonWarmUpThreshold;
uint32_t regexpWarmUpThreshold;
uint32_t exceptionBailoutThreshold;
uint32_t frequentBailoutThreshold;
uint32_t maxStackArgs;
uint32_t osrPcMismatchesBeforeRecompile;
uint32_t smallFunctionMaxBytecodeLength;
uint32_t inliningEntryThreshold;
uint32_t jumpThreshold;
uint32_t branchPruningHitCountFactor;
uint32_t branchPruningInstFactor;
uint32_t branchPruningBlockSpanFactor;
uint32_t branchPruningEffectfulInstFactor;
uint32_t branchPruningThreshold;
uint32_t ionMaxScriptSize;
uint32_t ionMaxScriptSizeMainThread;
uint32_t ionMaxLocalsAndArgs;
uint32_t ionMaxLocalsAndArgsMainThread;
uint32_t wasmBatchBaselineThreshold;
uint32_t wasmBatchIonThreshold;
uint32_t wasmBatchCraneliftThreshold;
mozilla::Maybe<IonRegisterAllocator> forcedRegisterAllocator;
// Spectre mitigation flags. Each mitigation has its own flag in order to
// measure the effectiveness of each mitigation with various proof of
// concept.
bool spectreIndexMasking;
bool spectreObjectMitigationsBarriers;
bool spectreObjectMitigationsMisc;
bool spectreStringMitigations;
bool spectreValueMasking;
bool spectreJitToCxxCalls;
bool supportsFloatingPoint;
bool supportsUnalignedAccesses;
DefaultJitOptions();
bool isSmallFunction(JSScript* script) const;
void setEagerBaselineCompilation();
void setEagerIonCompilation();
void setNormalIonWarmUpThreshold(uint32_t warmUpThreshold);
void resetNormalIonWarmUpThreshold();
void enableGvn(bool val);
void setFastWarmUp();
bool eagerIonCompilation() const { return normalIonWarmUpThreshold == 0; }
};
extern DefaultJitOptions JitOptions;
inline bool IsBaselineInterpreterEnabled() {
#ifdef JS_CODEGEN_NONE
return false;
#else
return JitOptions.baselineInterpreter && JitOptions.supportsFloatingPoint;
#endif
}
} // namespace jit
} // namespace js
#endif /* jit_JitOptions_h */
|
