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chore: cherry-pick fd8cbdf7b888 from v8 (#29815)

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* chore: cherry-pick fd8cbdf7b888 from v8

* chore: update patches

Co-authored-by: PatchUp <73610968+patchup[bot]@users.noreply.github.com>
This commit is contained in:
Pedro Pontes
2021-06-22 08:08:37 +02:00
committed by GitHub
parent 31a951c567
commit a6f3f2fe7d
2 changed files with 63 additions and 0 deletions
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patches/v8/.patches
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@@ -31,3 +31,4 @@ merged_liftoff_fix_2gb_memory_accesses_on_32-bit.patch
reland_compiler_fix_more_truncation_bugs_in_simplifiedlowering.patch
cherry-pick-9da8fb7c4b80.patch
m86-lts_squashed_multiple_commits.patch
cherry-pick-fd8cbdf7b888.patch

62
patches/v8/cherry-pick-fd8cbdf7b888.patch Normal file
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@@ -0,0 +1,62 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Georg Neis <neis@chromium.org>
Date: Thu, 27 May 2021 13:04:30 +0200
Subject: Reland "Merged: [compiler] Always record constness dependency for
FastDataConstant"
This is a reland of 638d1b238d510a349bdd38648add8d5c85bc5f7d after a
one-character change. A local variable still has a non-optional type
in this version of V8.
Original change's description:
> Merged: [compiler] Always record constness dependency for FastDataConstant
>
> Revision: 1bfa5139966fe0c9e8036fe6362b61c483675775
>
> BUG=chromium:1209558
> NOTRY=true
> NOPRESUBMIT=true
> NOTREECHECKS=true
>
> Change-Id: If4f7243647bcc12ed482796c1353f0717630f6b9
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2919823
> Commit-Queue: Georg Neis <neis@chromium.org>
> Reviewed-by: Igor Sheludko <ishell@chromium.org>
> Cr-Commit-Position: refs/branch-heads/9.1@{#59}
> Cr-Branched-From: 0e4ac64a8cf298b14034a22f9fe7b085d2cb238d-refs/heads/9.1.269@{#1}
> Cr-Branched-From: f565e72d5ba88daae35a59d0f978643e2343e912-refs/heads/master@{#73847}
NOTRY=true
NOPRESUBMIT=true
NOTREECHECKS=true
(cherry picked from commit 73666e3f6d6bdbc93ab81cf8b3803dd04930e293)
Bug: chromium:1209558
Change-Id: I0c81353882b0f17942fd92ad4181732f941bcb1d
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2939991
Commit-Queue: Georg Neis <neis@chromium.org>
Reviewed-by: Igor Sheludko <ishell@chromium.org>
Cr-Original-Commit-Position: refs/branch-heads/9.1@{#63}
Cr-Original-Branched-From: 0e4ac64a8cf298b14034a22f9fe7b085d2cb238d-refs/heads/9.1.269@{#1}
Cr-Original-Branched-From: f565e72d5ba88daae35a59d0f978643e2343e912-refs/heads/master@{#73847}
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2948652
Reviewed-by: Artem Sumaneev <asumaneev@google.com>
Commit-Queue: Victor-Gabriel Savu <vsavu@google.com>
Cr-Commit-Position: refs/branch-heads/8.6@{#108}
Cr-Branched-From: a64aed2333abf49e494d2a5ce24bbd14fff19f60-refs/heads/8.6.395@{#1}
Cr-Branched-From: a626bc036236c9bf92ac7b87dc40c9e538b087e3-refs/heads/master@{#69472}
diff --git a/src/compiler/access-info.cc b/src/compiler/access-info.cc
index 046927e9430e89596bd4077af37fb9374d279282..7f7a8fee63ed8bdd322bbbca8444c9345b3d32f7 100644
--- a/src/compiler/access-info.cc
+++ b/src/compiler/access-info.cc
@@ -892,7 +892,7 @@ PropertyAccessInfo AccessInfoFactory::LookupTransition(
// Transitioning stores *may* store to const fields. The resulting
// DataConstant access infos can be distinguished from later, i.e. redundant,
// stores to the same constant field by the presence of a transition map.
- switch (details.constness()) {
+ switch (dependencies()->DependOnFieldConstness(transition_map_ref, number)) {
case PropertyConstness::kMutable:
return PropertyAccessInfo::DataField(
zone(), map, std::move(unrecorded_dependencies), field_index,