2b2e4e4267
This is a reland of commit 9cca4e60f1
This CL disables the mjsunit tests as well in single generation mode.
Original change's description:
> [heap] Handle old-to-new slot promotion to shared heap
>
> The GC might promote an in-place internalizable string from new space
> directly into the shared heap. This means that the GC might need to
> create OLD_TO_SHARED slots when updating OLD_TO_NEW slots.
>
> This CL implements this both for minor and full GCs.
>
> Bug: v8:11708
> Change-Id: I6102b9024d1dd5dd602d654b006ea5897ab5baa6
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3804604
> Commit-Queue: Dominik Inführ <dinfuehr@chromium.org>
> Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
> Cr-Commit-Position: refs/heads/main@{#82298}
Bug: v8:11708
Change-Id: I9e96fe7c3f263d4088536d3a15af6d00fa82625e
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3828099
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Commit-Queue: Dominik Inführ <dinfuehr@chromium.org>
Cr-Commit-Position: refs/heads/main@{#82540}
28 lines
760 B
JavaScript
28 lines
760 B
JavaScript
// Copyright 2022 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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//
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// Flags: --expose-gc --allow-natives-syntax --verify-heap --shared-string-table
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const old = {};
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old.bar = 100;
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gc();
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assertFalse(%InYoungGeneration(old));
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const foo = 'a'.repeat(9);
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assertTrue(%InYoungGeneration(foo));
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assertTrue(%IsInPlaceInternalizableString(foo));
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// Create old-to-new reference.
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old.foo = foo;
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// Full GC would usally promote that string into old space,
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// with --shared-string-table it is promoted into shared heap
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// instead. This should create an old-to-shared reference from
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// an old-to-new slot.
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gc();
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// An additional full GC for heap verification.
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gc();
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