[webkit-changes] [WebKit/WebKit] a09e68: [JSC] Make TypedArray sort C++

[Yusuke Suzuki]

  Branch: refs/heads/main
  Home:   https://github.com/WebKit/WebKit
  Commit: a09e68d41ee57705c2f983578869cf4d72964372
      https://github.com/WebKit/WebKit/commit/a09e68d41ee57705c2f983578869cf4d72964372
  Author: Yusuke Suzuki <ysuzuki at apple.com>
  Date:   2023-11-13 (Mon, 13 Nov 2023)

  Changed paths:
    A JSTests/stress/typed-array-bigint64-sort.js
    M Source/JavaScriptCore/builtins/BuiltinNames.h
    M Source/JavaScriptCore/builtins/TypedArrayPrototype.js
    M Source/JavaScriptCore/bytecode/LinkTimeConstant.h
    M Source/JavaScriptCore/runtime/JSGenericTypedArrayView.h
    M Source/JavaScriptCore/runtime/JSGenericTypedArrayViewInlines.h
    M Source/JavaScriptCore/runtime/JSGenericTypedArrayViewPrototypeFunctions.h
    M Source/JavaScriptCore/runtime/JSGlobalObject.cpp
    M Source/JavaScriptCore/runtime/JSGlobalObject.h
    M Source/JavaScriptCore/runtime/JSTypedArrayViewPrototype.cpp
    M Source/JavaScriptCore/runtime/JSTypedArrayViewPrototype.h

  Log Message:
  -----------
  [JSC] Make TypedArray sort C++
https://bugs.webkit.org/show_bug.cgi?id=264789
rdar://118368873

Reviewed by Mark Lam.

Now, CachedCall gets much faster, so this patch moves TypedArray#sort implementation from JS to C++.
This is particularly good for TypedArray since they can just use Vector to allocate temporary buffer
for merge sort. When comparator is not specified, we use std::sort. But when it is specified, we use
our own merge sort function since std::sort will crash when values get changed during sorting.

We first copy TypedArray content, sorting, and then writing back to the original TypedArray. This is
because TypedArray can be detached or resized while executing comparator. So, for now, we just copy them
all so that it makes our algorithm simplified. It would be possible that we should reconsider using
our own quick sort for large TypedArray and checking detaching / resizing state every time executing
comparator.

* Source/JavaScriptCore/builtins/BuiltinNames.h:
* Source/JavaScriptCore/builtins/TypedArrayPrototype.js:
(at):
(linkTimeConstant.typedArrayMerge): Deleted.
(linkTimeConstant.typedArrayMergeSort): Deleted.
(sort): Deleted.
(toSorted): Deleted.
* Source/JavaScriptCore/bytecode/LinkTimeConstant.h:
* Source/JavaScriptCore/runtime/JSGenericTypedArrayView.h:
* Source/JavaScriptCore/runtime/JSGenericTypedArrayViewInlines.h:
(JSC::JSGenericTypedArrayView<Adaptor>::sort):
(JSC::JSGenericTypedArrayView<Adaptor>::sortFloat):
* Source/JavaScriptCore/runtime/JSGenericTypedArrayViewPrototypeFunctions.h:
(JSC::typedArrayMerge):
(JSC::typedArrayMergeSort):
(JSC::genericTypedArrayViewProtoFuncSortImpl):
(JSC::genericTypedArrayViewProtoFuncSort):
(JSC::genericTypedArrayViewProtoFuncToSorted):
(JSC::genericTypedArrayViewPrivateFuncClone): Deleted.
(JSC::genericTypedArrayViewPrivateFuncSort): Deleted.
* Source/JavaScriptCore/runtime/JSGlobalObject.cpp:
(JSC::JSGlobalObject::init):
(JSC::JSGlobalObject::visitChildrenImpl):
* Source/JavaScriptCore/runtime/JSGlobalObject.h:
(JSC::JSGlobalObject::typedArrayProtoSort const): Deleted.
* Source/JavaScriptCore/runtime/JSTypedArrayViewPrototype.cpp:
(JSC::JSC_DEFINE_HOST_FUNCTION):
(JSC::JSTypedArrayViewPrototype::finishCreation):
* Source/JavaScriptCore/runtime/JSTypedArrayViewPrototype.h:

Canonical link: https://commits.webkit.org/270691@main