v8/test/mjsunit/regress/regress-v8-4153-1.js

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Reland "[typedarray] Move external/data pointer to JSTypedArray." This is a reland of 4b86fea5308b12fa369038dc60c0aabd13870ec5 with copy&paste typo in CodeStubAssembler::AllocateByteArray() fixed (bug led to holes in new space, which was crashing reproducibly on the ia32 bot). Original change's description: > [typedarray] Move external/data pointer to JSTypedArray. > > As the next step in supporting huge typed arrays in V8, this moves the > external/data pointer from the FixedTypedArrayBase backing store to the > JSTypedArray instance itself, and replaces the special backing stores > with a plain ByteArray (removing all the code for the FixedTypedArrayBase > class hierarchy). By doing so, we can drastically simplify the system > around typed arrays. > > Note: Several places in the code base used to check the instance type > of the elements backing store of a JSTypedArray instead of checking the > elements kind on the JSTypedArray map directly. Those had to be fixed, > since the backing store is now always a ByteArray. > > Drive-by-fix: Move all the typed elements access related code into the > elements.cc file to properly encapsulate the accesses. > > Doc: http://doc/1Z-wM2qwvAuxH46e9ivtkYvKzzwYZg8ymm0x0wJaomow > Bug: chromium:951196, chromium:965583, v8:4153, v8:7881, v8:9183 > Change-Id: I8cc06b190c53e34155000b4560f5f3ef40621646 > Cq-Include-Trybots: luci.chromium.try:linux-rel,win7-rel > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1627535 > Commit-Queue: Benedikt Meurer <bmeurer@chromium.org> > Reviewed-by: Peter Marshall <petermarshall@chromium.org> > Reviewed-by: Ulan Degenbaev <ulan@chromium.org> > Reviewed-by: Simon Zünd <szuend@chromium.org> > Cr-Commit-Position: refs/heads/master@{#61855} Tbr: petermarshall@chromium.org Bug: chromium:951196, chromium:965583, v8:4153, v8:7881, v8:9183 Change-Id: I87fcdb28532c5f08cc227332a4d59546cb423810 Cq-Include-Trybots: luci.chromium.try:linux-rel, win7-rel Cq-Include-Trybots: luci.v8.try:v8_linux_shared_compile_rel Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1631592 Reviewed-by: Benedikt Meurer <bmeurer@chromium.org> Commit-Queue: Benedikt Meurer <bmeurer@chromium.org> Cr-Commit-Position: refs/heads/master@{#61864}
2019-05-27 17:01:01 +00:00
// Copyright 2019 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// Flags: --verify-heap
// Create tiny (on-heap) instances of TypedArrays to make sure
// that the ByteArrays are properly sized (in new space).
var arrays = [
Int8Array, Uint8Array, Int16Array, Uint16Array, Int32Array, Uint32Array,
Float32Array, Float64Array, Uint8ClampedArray, BigInt64Array, BigUint64Array
].map(C => {
new C(1)
});