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/src/jit/JitOptions.cpp | 2 +- js/src/jsapi.cpp | 3 +++ js/src/jsapi.h | 25 +++++++++++++------------ 3 files changed, 17 insertions(+), 13 deletions(-) (limited to 'js/src') diff --git a/js/src/jit/JitOptions.cpp b/js/src/jit/JitOptions.cpp index eb5a6c1c2..b9a7c7b27 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 37d023bd4..6114b8157 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 005d2278e..1f726f2e5 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 { -- cgit v1.2.3