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chore: cherry-pick 00245033cf from v8 (#28902)

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This commit is contained in:
Pedro Pontes
2021-04-28 21:49:48 +02:00
committed by GitHub
parent 698fc73c23
commit f5533950d6
2 changed files with 38 additions and 0 deletions
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patches/v8/.patches
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@@ -24,3 +24,4 @@ merged_squashed_multiple_commits.patch
lts-m86_builtins_fix_array_prototype_concat_with_species.patch
lts-m86_builtins_harden_array_prototype_concat.patch
merged_compiler_fix_a_bug_in_visitspeculativeintegeradditiveop.patch
m86-lts_compiler_fix_off-by-one_error_in_kadditivesafeinteger.patch

37
patches/v8/m86-lts_compiler_fix_off-by-one_error_in_kadditivesafeinteger.patch Normal file
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@@ -0,0 +1,37 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Georg Neis <neis@chromium.org>
Date: Mon, 19 Apr 2021 13:12:46 +0200
Subject: M86-LTS: [compiler] Fix off-by-one error in kAdditiveSafeInteger
(cherry picked from commit 798fbcb0a3e5a292fb775c37c19d9fe73bbac17c)
No-Try: true
No-Presubmit: true
No-Tree-Checks: true
Bug: chromium:1198705
Change-Id: I6b3ad82754e1ca72701ce57f16c4f085f8c87f77
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2835705
Auto-Submit: Georg Neis <neis@chromium.org>
Commit-Queue: Nico Hartmann <nicohartmann@chromium.org>
Reviewed-by: Nico Hartmann <nicohartmann@chromium.org>
Cr-Original-Commit-Position: refs/heads/master@{#74033}
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2850708
Commit-Queue: Artem Sumaneev <asumaneev@google.com>
Reviewed-by: Victor-Gabriel Savu <vsavu@google.com>
Cr-Commit-Position: refs/branch-heads/8.6@{#87}
Cr-Branched-From: a64aed2333abf49e494d2a5ce24bbd14fff19f60-refs/heads/8.6.395@{#1}
Cr-Branched-From: a626bc036236c9bf92ac7b87dc40c9e538b087e3-refs/heads/master@{#69472}
diff --git a/src/compiler/type-cache.h b/src/compiler/type-cache.h
index ada95a37219fc01bb01b413b9eb88fcb4c592e98..2ade5f68a3b1d9b0eeb7cac52435b4b224301003 100644
--- a/src/compiler/type-cache.h
+++ b/src/compiler/type-cache.h
@@ -80,7 +80,7 @@ class V8_EXPORT_PRIVATE TypeCache final {
Type::Union(kPositiveIntegerOrMinusZero, Type::NaN(), zone());
Type const kAdditiveSafeInteger =
- CreateRange(-4503599627370496.0, 4503599627370496.0);
+ CreateRange(-4503599627370495.0, 4503599627370495.0);
Type const kSafeInteger = CreateRange(-kMaxSafeInteger, kMaxSafeInteger);
Type const kAdditiveSafeIntegerOrMinusZero =
Type::Union(kAdditiveSafeInteger, Type::MinusZero(), zone());