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Pref the use of unboxed plain objects in JS and disable by default

master
Fedor 2019-03-30 04:55:45 +03:00
parent 24e549b6f4
commit 2d009f3fa3
5 changed files with 22 additions and 13 deletions
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2
js/src/jit/JitOptions.cpp
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@ -222,7 +222,7 @@ DefaultJitOptions::DefaultJitOptions()
} }
// Toggles whether unboxed plain objects can be created by the VM. // Toggles whether unboxed plain objects can be created by the VM.
SET_DEFAULT(disableUnboxedObjects, false); SET_DEFAULT(disableUnboxedObjects, true);
// Test whether Atomics are allowed in asm.js code. // Test whether Atomics are allowed in asm.js code.
SET_DEFAULT(asmJSAtomicsEnable, false); SET_DEFAULT(asmJSAtomicsEnable, false);

3
js/src/jsapi.cpp
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@ -6410,6 +6410,9 @@ JS_SetGlobalJitCompilerOption(JSContext* cx, JSJitCompilerOption opt, uint32_t v
} }
jit::JitOptions.jumpThreshold = value; jit::JitOptions.jumpThreshold = value;
break; break;
case JSJITCOMPILER_UNBOXED_OBJECTS:
jit::JitOptions.disableUnboxedObjects = !value;
break;
case JSJITCOMPILER_ASMJS_ATOMICS_ENABLE: case JSJITCOMPILER_ASMJS_ATOMICS_ENABLE:
jit::JitOptions.asmJSAtomicsEnable = !!value; jit::JitOptions.asmJSAtomicsEnable = !!value;
break; break;

25
js/src/jsapi.h
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@ -5783,19 +5783,20 @@ JS_SetParallelParsingEnabled(JSContext* cx, bool enabled);
extern JS_PUBLIC_API(void) extern JS_PUBLIC_API(void)
JS_SetOffthreadIonCompilationEnabled(JSContext* cx, bool enabled); JS_SetOffthreadIonCompilationEnabled(JSContext* cx, bool enabled);
#define JIT_COMPILER_OPTIONS(Register) \ #define JIT_COMPILER_OPTIONS(Register) \
Register(BASELINE_WARMUP_TRIGGER, "baseline.warmup.trigger") \ Register(BASELINE_WARMUP_TRIGGER, "baseline.warmup.trigger") \
Register(ION_WARMUP_TRIGGER, "ion.warmup.trigger") \ Register(ION_WARMUP_TRIGGER, "ion.warmup.trigger") \
Register(ION_GVN_ENABLE, "ion.gvn.enable") \ Register(ION_GVN_ENABLE, "ion.gvn.enable") \
Register(ION_FORCE_IC, "ion.forceinlineCaches") \ Register(ION_FORCE_IC, "ion.forceinlineCaches") \
Register(ION_ENABLE, "ion.enable") \ Register(ION_ENABLE, "ion.enable") \
Register(ION_INTERRUPT_WITHOUT_SIGNAL, "ion.interrupt-without-signals") \ Register(ION_INTERRUPT_WITHOUT_SIGNAL, "ion.interrupt-without-signals") \
Register(ION_CHECK_RANGE_ANALYSIS, "ion.check-range-analysis") \ Register(ION_CHECK_RANGE_ANALYSIS, "ion.check-range-analysis") \
Register(BASELINE_ENABLE, "baseline.enable") \ Register(BASELINE_ENABLE, "baseline.enable") \
Register(OFFTHREAD_COMPILATION_ENABLE, "offthread-compilation.enable") \ Register(OFFTHREAD_COMPILATION_ENABLE, "offthread-compilation.enable") \
Register(JUMP_THRESHOLD, "jump-threshold") \ Register(JUMP_THRESHOLD, "jump-threshold") \
Register(ASMJS_ATOMICS_ENABLE, "asmjs.atomics.enable") \ Register(UNBOXED_OBJECTS, "unboxed_objects") \
Register(WASM_TEST_MODE, "wasm.test-mode") \ Register(ASMJS_ATOMICS_ENABLE, "asmjs.atomics.enable") \
Register(WASM_TEST_MODE, "wasm.test-mode") \
Register(WASM_FOLD_OFFSETS, "wasm.fold-offsets") Register(WASM_FOLD_OFFSETS, "wasm.fold-offsets")
typedef enum JSJitCompilerOption { typedef enum JSJitCompilerOption {

4
js/xpconnect/src/XPCJSContext.cpp
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@ -1427,6 +1427,8 @@ ReloadPrefsCallback(const char* pref, void* data)
bool extraWarnings = Preferences::GetBool(JS_OPTIONS_DOT_STR "strict"); bool extraWarnings = Preferences::GetBool(JS_OPTIONS_DOT_STR "strict");
bool unboxedObjects = Preferences::GetBool(JS_OPTIONS_DOT_STR "unboxed_objects");
sSharedMemoryEnabled = Preferences::GetBool(JS_OPTIONS_DOT_STR "shared_memory"); sSharedMemoryEnabled = Preferences::GetBool(JS_OPTIONS_DOT_STR "shared_memory");
#ifdef DEBUG #ifdef DEBUG
@ -1455,6 +1457,8 @@ ReloadPrefsCallback(const char* pref, void* data)
useBaselineEager ? 0 : -1); useBaselineEager ? 0 : -1);
JS_SetGlobalJitCompilerOption(cx, JSJITCOMPILER_ION_WARMUP_TRIGGER, JS_SetGlobalJitCompilerOption(cx, JSJITCOMPILER_ION_WARMUP_TRIGGER,
useIonEager ? 0 : -1); useIonEager ? 0 : -1);
JS_SetGlobalJitCompilerOption(cx, JSJITCOMPILER_UNBOXED_OBJECTS,
unboxedObjects);
} }
XPCJSContext::~XPCJSContext() XPCJSContext::~XPCJSContext()

1
modules/libpref/init/all.js
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@ -1268,6 +1268,7 @@ pref("javascript.options.strict", false);
#ifdef DEBUG #ifdef DEBUG
pref("javascript.options.strict.debug", false); pref("javascript.options.strict.debug", false);
#endif #endif
pref("javascript.options.unboxed_objects", false);
pref("javascript.options.baselinejit", true); pref("javascript.options.baselinejit", true);
pref("javascript.options.ion", true); pref("javascript.options.ion", true);
pref("javascript.options.asmjs", true); pref("javascript.options.asmjs", true);