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-rw-r--r--js/src/jit/JitOptions.cpp2
-rw-r--r--js/src/jsapi.cpp3
-rw-r--r--js/src/jsapi.h25
-rw-r--r--js/xpconnect/src/XPCJSContext.cpp4
-rw-r--r--modules/libpref/init/all.js1
5 files changed, 22 insertions, 13 deletions
diff --git a/js/src/jit/JitOptions.cpp b/js/src/jit/JitOptions.cpp
index eb5a6c1c22..b9a7c7b276 100644
--- a/js/src/jit/JitOptions.cpp
+++ b/js/src/jit/JitOptions.cpp
@@ -222,7 +222,7 @@ DefaultJitOptions::DefaultJitOptions()
}
// 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.
SET_DEFAULT(asmJSAtomicsEnable, false);
diff --git a/js/src/jsapi.cpp b/js/src/jsapi.cpp
index 37d023bd4a..6114b81576 100644
--- a/js/src/jsapi.cpp
+++ b/js/src/jsapi.cpp
@@ -6410,6 +6410,9 @@ JS_SetGlobalJitCompilerOption(JSContext* cx, JSJitCompilerOption opt, uint32_t v
}
jit::JitOptions.jumpThreshold = value;
break;
+ case JSJITCOMPILER_UNBOXED_OBJECTS:
+ jit::JitOptions.disableUnboxedObjects = !value;
+ break;
case JSJITCOMPILER_ASMJS_ATOMICS_ENABLE:
jit::JitOptions.asmJSAtomicsEnable = !!value;
break;
diff --git a/js/src/jsapi.h b/js/src/jsapi.h
index 005d2278e4..1f726f2e54 100644
--- a/js/src/jsapi.h
+++ b/js/src/jsapi.h
@@ -5783,19 +5783,20 @@ JS_SetParallelParsingEnabled(JSContext* cx, bool enabled);
extern JS_PUBLIC_API(void)
JS_SetOffthreadIonCompilationEnabled(JSContext* cx, bool enabled);
-#define JIT_COMPILER_OPTIONS(Register) \
- Register(BASELINE_WARMUP_TRIGGER, "baseline.warmup.trigger") \
- Register(ION_WARMUP_TRIGGER, "ion.warmup.trigger") \
- Register(ION_GVN_ENABLE, "ion.gvn.enable") \
- Register(ION_FORCE_IC, "ion.forceinlineCaches") \
- Register(ION_ENABLE, "ion.enable") \
+#define JIT_COMPILER_OPTIONS(Register) \
+ Register(BASELINE_WARMUP_TRIGGER, "baseline.warmup.trigger") \
+ Register(ION_WARMUP_TRIGGER, "ion.warmup.trigger") \
+ Register(ION_GVN_ENABLE, "ion.gvn.enable") \
+ Register(ION_FORCE_IC, "ion.forceinlineCaches") \
+ Register(ION_ENABLE, "ion.enable") \
Register(ION_INTERRUPT_WITHOUT_SIGNAL, "ion.interrupt-without-signals") \
- Register(ION_CHECK_RANGE_ANALYSIS, "ion.check-range-analysis") \
- Register(BASELINE_ENABLE, "baseline.enable") \
- Register(OFFTHREAD_COMPILATION_ENABLE, "offthread-compilation.enable") \
- Register(JUMP_THRESHOLD, "jump-threshold") \
- Register(ASMJS_ATOMICS_ENABLE, "asmjs.atomics.enable") \
- Register(WASM_TEST_MODE, "wasm.test-mode") \
+ Register(ION_CHECK_RANGE_ANALYSIS, "ion.check-range-analysis") \
+ Register(BASELINE_ENABLE, "baseline.enable") \
+ Register(OFFTHREAD_COMPILATION_ENABLE, "offthread-compilation.enable") \
+ Register(JUMP_THRESHOLD, "jump-threshold") \
+ Register(UNBOXED_OBJECTS, "unboxed_objects") \
+ Register(ASMJS_ATOMICS_ENABLE, "asmjs.atomics.enable") \
+ Register(WASM_TEST_MODE, "wasm.test-mode") \
Register(WASM_FOLD_OFFSETS, "wasm.fold-offsets")
typedef enum JSJitCompilerOption {
diff --git a/js/xpconnect/src/XPCJSContext.cpp b/js/xpconnect/src/XPCJSContext.cpp
index 0243d80e36..bde949a960 100644
--- a/js/xpconnect/src/XPCJSContext.cpp
+++ b/js/xpconnect/src/XPCJSContext.cpp
@@ -1427,6 +1427,8 @@ ReloadPrefsCallback(const char* pref, void* data)
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");
#ifdef DEBUG
@@ -1455,6 +1457,8 @@ ReloadPrefsCallback(const char* pref, void* data)
useBaselineEager ? 0 : -1);
JS_SetGlobalJitCompilerOption(cx, JSJITCOMPILER_ION_WARMUP_TRIGGER,
useIonEager ? 0 : -1);
+ JS_SetGlobalJitCompilerOption(cx, JSJITCOMPILER_UNBOXED_OBJECTS,
+ unboxedObjects);
}
XPCJSContext::~XPCJSContext()
diff --git a/modules/libpref/init/all.js b/modules/libpref/init/all.js
index 4111ca8a92..aed20c8548 100644
--- a/modules/libpref/init/all.js
+++ b/modules/libpref/init/all.js
@@ -1264,6 +1264,7 @@ pref("javascript.options.strict", false);
#ifdef DEBUG
pref("javascript.options.strict.debug", false);
#endif
+pref("javascript.options.unboxed_objects", false);
pref("javascript.options.baselinejit", true);
pref("javascript.options.ion", true);
pref("javascript.options.asmjs", true);