From 890bb438b000821586c076ed8f880e95ea03f075 Mon Sep 17 00:00:00 2001 From: wolfbeast Date: Thu, 21 Mar 2019 09:53:24 +0100 Subject: Pref the use of unboxed plain objects in JS and disable by default. This should be all that's needed for #1017, but verification of impact is definitely desired. --- js/xpconnect/src/XPCJSContext.cpp | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'js/xpconnect') 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() -- cgit v1.2.3