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LibJS: Call builtins directly in the bytecode interpreter

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Allows the bytecode interpreter to call the builtins c++
implementation directly without making a javascript call
just as the JIT.

Kraken test speedups: imaging-gaussian-blur.js (1.5x) and
audio-oscillator.js (1.2x)
This commit is contained in:
Todderod 2023-11-30 19:49:29 +01:00 • committed by Andreas Kling
parent ce6cd4f45f
commit e335354b30
4 changed files with 46 additions and 3 deletions
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10
Userland/Libraries/LibJS/Runtime/MathObject.cpp
View file

@ -80,10 +80,8 @@ void MathObject::initialize(Realm& realm)
}
// 21.3.2.1 Math.abs ( x ), https://tc39.es/ecma262/#sec-math.abs
JS_DEFINE_NATIVE_FUNCTION(MathObject::abs)
ThrowCompletionOr<Value> MathObject::abs_impl(VM& vm, Value x)
{
auto x = vm.argument(0);
// OPTIMIZATION: Fast path for Int32 values.
if (x.is_int32())
return Value(AK::abs(x.as_i32()));
@ -108,6 +106,12 @@ JS_DEFINE_NATIVE_FUNCTION(MathObject::abs)
return Value(number.as_double() < 0 ? -number.as_double() : number.as_double());
}
// 21.3.2.1 Math.abs ( x ), https://tc39.es/ecma262/#sec-math.abs
JS_DEFINE_NATIVE_FUNCTION(MathObject::abs)
{
return abs_impl(vm, vm.argument(0));
}
// 21.3.2.2 Math.acos ( x ), https://tc39.es/ecma262/#sec-math.acos
JS_DEFINE_NATIVE_FUNCTION(MathObject::acos)
{

1
Userland/Libraries/LibJS/Runtime/MathObject.h
View file

@ -25,6 +25,7 @@ public:
static ThrowCompletionOr<Value> ceil_impl(VM&, Value);
static ThrowCompletionOr<Value> round_impl(VM&, Value);
static ThrowCompletionOr<Value> exp_impl(VM&, Value);
static ThrowCompletionOr<Value> abs_impl(VM&, Value);
private:
explicit MathObject(Realm&);

5
Userland/Libraries/LibJS/Runtime/Realm.h
View file

@ -57,6 +57,11 @@ public:
m_builtins[to_underlying(builtin)] = value;
}
Value get_builtin_value(Bytecode::Builtin builtin)
{
return m_builtins[to_underlying(builtin)];
}
static FlatPtr global_environment_offset() { return OFFSET_OF(Realm, m_global_environment); }
static FlatPtr builtins_offset() { return OFFSET_OF(Realm, m_builtins); }