This is a reland of 981aafaf97
It adds double checks to LoadFieldByIndex in the optimizing compiler, which
are likely the source of the crashes.
Original change's description:
> Reland "[ic] In-place Double -> Tagged transitions"
>
> This is a reland of 0736599a69.
> This is a reland of 7e1fbe8f34.
>
> Original change description:
> > [ic] In-place Double -> Tagged transitions
> >
> > With no more MutableHeapNumber, we can make Double -> Tagged transitions
> > in-place, at the cost of an extra map check when accessing double fields
> > to make sure they are still doubles.
> >
> > Bug: v8:9606
> > Change-Id: I74ff39ed6fba62ee223cd37dfe761f7d73020e1c
> > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1743973
> > Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
> > Reviewed-by: Toon Verwaest <verwaest@chromium.org>
> > Commit-Queue: Leszek Swirski <leszeks@chromium.org>
> > Cr-Commit-Position: refs/heads/master@{#63374}
>
> TBR=verwaest@chromium.org, tebbi@chromium.org
>
> Bug: v8:9606
> Change-Id: I2d1b7416064d743582f4983fb868316b7e8a4cf2
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1777661
> Reviewed-by: Leszek Swirski <leszeks@chromium.org>
> Commit-Queue: Leszek Swirski <leszeks@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#63499}
TBR=verwaest@chromium.org
Bug: v8:9606
Bug: chromium:997989
Change-Id: Iccfff8e5c6306c9ee4f6c62767dce883b1c6f743
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1784288
Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Auto-Submit: Leszek Swirski <leszeks@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63582}
This is a reland of 0736599a69.
This is a reland of 7e1fbe8f34.
Original change description:
> [ic] In-place Double -> Tagged transitions
>
> With no more MutableHeapNumber, we can make Double -> Tagged transitions
> in-place, at the cost of an extra map check when accessing double fields
> to make sure they are still doubles.
>
> Bug: v8:9606
> Change-Id: I74ff39ed6fba62ee223cd37dfe761f7d73020e1c
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1743973
> Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
> Reviewed-by: Toon Verwaest <verwaest@chromium.org>
> Commit-Queue: Leszek Swirski <leszeks@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#63374}
TBR=verwaest@chromium.org, tebbi@chromium.org
Bug: v8:9606
Change-Id: I2d1b7416064d743582f4983fb868316b7e8a4cf2
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1777661
Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63499}
For stores with Double feedback, StoreIC needs to check that the
representation is still Double before doing the store, in case it
accidentally tries to write to an object or worse, mutate a non-mutable
HeapNumber.
Bug: v8:9606
Bug: chromium:997485
Change-Id: I51e0953b40f752648c5e86b8644c23baf636367e
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1768373
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Reviewed-by: Igor Sheludko <ishell@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63402}
