[v12.x] Backport update to V8 7.8 #30109

PR-URL: nodejs#28016 Reviewed-By: Colin Ihrig <cjihrig@gmail.com> Reviewed-By: Refael Ackermann (רפאל פלחי) <refack@gmail.com> Reviewed-By: Rich Trott <rtrott@gmail.com> Reviewed-By: Michael Dawson <michael_dawson@ca.ibm.com> Reviewed-By: Jiawen Geng <technicalcute@gmail.com>

Original commit message: [testrunner] delete ancient junit compatible format support Testrunner has ancient support for JUnit compatible XML output. This CL removes this old feature. R=mstarzinger@chromium.org,jgruber@chromium.org,jkummerow@chromium.org CC=machenbach@chromium.org Bug: v8:8728 Change-Id: I7e1beb011dbaec3aa1a27398a5c52abdd778eaf0 Reviewed-on: https://chromium-review.googlesource.com/c/1430065 Reviewed-by: Jakob Gruber <jgruber@chromium.org> Reviewed-by: Michael Starzinger <mstarzinger@chromium.org> Commit-Queue: Tamer Tas <tmrts@chromium.org> Cr-Commit-Position: refs/heads/master@{#59045} Refs: v8/v8@bd019bd PR-URL: nodejs#26685 Reviewed-By: Anna Henningsen <anna@addaleax.net> Reviewed-By: Michaël Zasso <targos@protonmail.com> Reviewed-By: Refael Ackermann <refack@gmail.com>

PR-URL: nodejs#26685 Reviewed-By: Anna Henningsen <anna@addaleax.net> Reviewed-By: Michaël Zasso <targos@protonmail.com> Reviewed-By: Refael Ackermann <refack@gmail.com>

Fixes a compilation issue on some platforms PR-URL: nodejs#27375 Reviewed-By: Michaël Zasso <targos@protonmail.com> Reviewed-By: Ujjwal Sharma <usharma1998@gmail.com> Reviewed-By: Refael Ackermann <refack@gmail.com> Reviewed-By: Matteo Collina <matteo.collina@gmail.com> Reviewed-By: Colin Ihrig <cjihrig@gmail.com> Reviewed-By: Rich Trott <rtrott@gmail.com>

This should be semver-patch since actual invocation is version conditional. PR-URL: nodejs#27375 Reviewed-By: Michaël Zasso <targos@protonmail.com> Reviewed-By: Ujjwal Sharma <usharma1998@gmail.com> Reviewed-By: Refael Ackermann <refack@gmail.com> Reviewed-By: Matteo Collina <matteo.collina@gmail.com> Reviewed-By: Colin Ihrig <cjihrig@gmail.com> Reviewed-By: Rich Trott <rtrott@gmail.com>

`std::atomic_init<size_t>` is not implemented on all platforms. PR-URL: nodejs#27375 Reviewed-By: Michaël Zasso <targos@protonmail.com> Reviewed-By: Ujjwal Sharma <usharma1998@gmail.com> Reviewed-By: Refael Ackermann <refack@gmail.com> Reviewed-By: Matteo Collina <matteo.collina@gmail.com> Reviewed-By: Colin Ihrig <cjihrig@gmail.com> Reviewed-By: Rich Trott <rtrott@gmail.com>

Refs: https://developercommunity.visualstudio.com/content/problem/512352/compiler-doesnt-finish-142027508.html PR-URL: nodejs#28016 Reviewed-By: Colin Ihrig <cjihrig@gmail.com> Reviewed-By: Refael Ackermann (רפאל פלחי) <refack@gmail.com> Reviewed-By: Rich Trott <rtrott@gmail.com> Reviewed-By: Michael Dawson <michael_dawson@ca.ibm.com> Reviewed-By: Jiawen Geng <technicalcute@gmail.com>

PR-URL: nodejs#27375 Reviewed-By: Michaël Zasso <targos@protonmail.com> Reviewed-By: Ujjwal Sharma <usharma1998@gmail.com> Reviewed-By: Refael Ackermann <refack@gmail.com> Reviewed-By: Matteo Collina <matteo.collina@gmail.com> Reviewed-By: Colin Ihrig <cjihrig@gmail.com> Reviewed-By: Rich Trott <rtrott@gmail.com>

PR-URL: nodejs#28016 Reviewed-By: Colin Ihrig <cjihrig@gmail.com> Reviewed-By: Refael Ackermann (רפאל פלחי) <refack@gmail.com> Reviewed-By: Rich Trott <rtrott@gmail.com> Reviewed-By: Michael Dawson <michael_dawson@ca.ibm.com> Reviewed-By: Jiawen Geng <technicalcute@gmail.com>

until c6196ad7a2d601a4e1fdb313bfe2ec727fd67f7a Co-authored-by: Ujjwal Sharma <usharma1998@gmail.com> Co-authored-by: Michaël Zasso <targos@protonmail.com> PR-URL: nodejs#29694 Reviewed-By: Colin Ihrig <cjihrig@gmail.com> Reviewed-By: Anna Henningsen <anna@addaleax.net> Reviewed-By: Gus Caplan <me@gus.host> Reviewed-By: Jiawen Geng <technicalcute@gmail.com> Reviewed-By: Michaël Zasso <targos@protonmail.com> Reviewed-By: Tobias Nießen <tniessen@tnie.de> Reviewed-By: Ujjwal Sharma <usharma1998@gmail.com>

PR-URL: nodejs#29694 Reviewed-By: Colin Ihrig <cjihrig@gmail.com> Reviewed-By: Anna Henningsen <anna@addaleax.net> Reviewed-By: Gus Caplan <me@gus.host> Reviewed-By: Jiawen Geng <technicalcute@gmail.com> Reviewed-By: Michaël Zasso <targos@protonmail.com> Reviewed-By: Tobias Nießen <tniessen@tnie.de> Reviewed-By: Ujjwal Sharma <usharma1998@gmail.com>

Patch V8 (compiler/js-heap-broker.cc) to remove the use of an optional property, which is a fairly new C++ feature, since that requires a newer XCode version than the minimum requirement in BUILDING.md and thus breaks CI. PR-URL: nodejs#29694 Reviewed-By: Colin Ihrig <cjihrig@gmail.com> Reviewed-By: Anna Henningsen <anna@addaleax.net> Reviewed-By: Gus Caplan <me@gus.host> Reviewed-By: Jiawen Geng <technicalcute@gmail.com> Reviewed-By: Michaël Zasso <targos@protonmail.com> Reviewed-By: Tobias Nießen <tniessen@tnie.de> Reviewed-By: Ujjwal Sharma <usharma1998@gmail.com>

Original commit message: [debugger] Fix code coverage for break/return inside switch-case Case statements have a list of statements associated with them, but are not blocks, and were hence not fixed-up correctly for code coverage. This CL also applies the fix-up to the "body" of case statements, in this way removing ranges reported as uncovered between the final break/return in a case and the next case (or end of function). Drive-by: Add optional pretty printing to code coverage test results. Change-Id: I5f4002d4e17b7253ed516d99f7c389ab2264be10 Bug: v8:9705 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1798426 Reviewed-by: Toon Verwaest <verwaest@chromium.org> Reviewed-by: Jakob Gruber <jgruber@chromium.org> Commit-Queue: Sigurd Schneider <sigurds@chromium.org> Cr-Commit-Position: refs/heads/master@{#63719} Refs: v8/v8@deac757 PR-URL: nodejs#29626 Reviewed-By: Rich Trott <rtrott@gmail.com> Reviewed-By: Richard Lau <riclau@uk.ibm.com> Reviewed-By: Shelley Vohr <codebytere@gmail.com> Reviewed-By: Anna Henningsen <anna@addaleax.net>

Original commit message: Make code generator python3.7 compatible (async keyword). Change-Id: Ifcd8b8cb1de60a007c7bbd4564d7869e83cb7109 Fixes: nodejs#29548 Refs: - nodejs#29548 (comment) - nodejs#29520 - nodejs#29340 - https://chromium-review.googlesource.com/c/deps/inspector_protocol/+/1781351 - https://chromium.googlesource.com/deps/inspector_protocol/+/35c6d4d0d80b42d81bd00bcb1eb2b1093c80ed0a PR-URL: nodejs#29585 Refs: nodejs#29520 Reviewed-By: Christian Clauss <cclauss@me.com> Reviewed-By: Richard Lau <riclau@uk.ibm.com> Reviewed-By: Colin Ihrig <cjihrig@gmail.com> Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl> Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>

Original commit message: [build] Add message-template.h to build file This was missed during a file move and can cause build bugs. Bug: chromium:991547 Change-Id: I157e7bb656956c08293c205c0d00884aecc7adee Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1798430 Commit-Queue: Sigurd Schneider <sigurds@chromium.org> Reviewed-by: Sigurd Schneider <sigurds@chromium.org> Auto-Submit: Peter Marshall <petermarshall@chromium.org> Cr-Commit-Position: refs/heads/master@{#63711} Refs: v8/v8@716875d PR-URL: nodejs#29694 Reviewed-By: Colin Ihrig <cjihrig@gmail.com> Reviewed-By: Anna Henningsen <anna@addaleax.net> Reviewed-By: Gus Caplan <me@gus.host> Reviewed-By: Jiawen Geng <technicalcute@gmail.com> Reviewed-By: Michaël Zasso <targos@protonmail.com> Reviewed-By: Tobias Nießen <tniessen@tnie.de> Reviewed-By: Ujjwal Sharma <usharma1998@gmail.com>

Original commit message: [regexp] Fix the order of named captures on the groups object Named capture properties on the groups object should be ordered by the capture index (and not alpha-sorted). This was accidentally broken in https://crrev.com/c/1687413. Bug: v8:9822,v8:9423 Change-Id: Iac6f866f077a1b7ce557ba47e8ba5d7e7014b3ce Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1864829 Auto-Submit: Jakob Gruber <jgruber@chromium.org> Reviewed-by: Peter Marshall <petermarshall@chromium.org> Commit-Queue: Peter Marshall <petermarshall@chromium.org> Cr-Commit-Position: refs/heads/master@{#64306} Refs: v8/v8@ed40ab1 Fixes: nodejs#29878 PR-URL: nodejs#30064 Reviewed-By: Anna Henningsen <anna@addaleax.net> Reviewed-By: Gus Caplan <me@gus.host> Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl> Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de> Reviewed-By: Colin Ihrig <cjihrig@gmail.com> Reviewed-By: Jiawen Geng <technicalcute@gmail.com>

Original commit message: [api] Fix handle leak when getting Context embedder data The `Context::SlowGetAlignedPointerFromEmbedderData()` method returns a pointer, so the fact that it allocates handles is not obvious to the caller. Since this is the slow path anyway, simply add a handle scope inside of it. The tests are also modified to perform the same check for the `Object` equivalent of this method. Change-Id: I5f03c9a7b70b3a17315609df021606a53c9feb2d Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1879902 Reviewed-by: Yang Guo <yangguo@chromium.org> Commit-Queue: Yang Guo <yangguo@chromium.org> Cr-Commit-Position: refs/heads/master@{#64583} Refs: v8/v8@e5dbc95 Fixes: nodejs#30127 PR-URL: nodejs#30130 Reviewed-By: Anna Henningsen <anna@addaleax.net> Reviewed-By: Michaël Zasso <targos@protonmail.com>

Original commit message: PPC: Using a scratch register under LoadRealStackLimit Change-Id: Id9e9142a8ff185309b91dcfff70dae8ccf8b5166 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1954244 Reviewed-by: Junliang Yan <jyan@ca.ibm.com> Commit-Queue: Milad Farazmand <miladfar@ca.ibm.com> Cr-Commit-Position: refs/heads/master@{#65357} Refs: v8/v8@0a05508

Original commit message: [postmortem] Load files using utf-8 to support Python 3 Change-Id: I174d38cc33210c07d1a7596627e1b2d21bb06313 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1895560 Reviewed-by: Mathias Bynens <mathias@chromium.org> Commit-Queue: Michaël Zasso <mic.besace@gmail.com> Cr-Commit-Position: refs/heads/master@{#64717} Refs: v8/v8@a7dffcd PR-URL: nodejs#30218 Reviewed-By: Richard Lau <riclau@uk.ibm.com> Reviewed-By: David Carlier <devnexen@gmail.com> Reviewed-By: Colin Ihrig <cjihrig@gmail.com> Reviewed-By: Chengzhong Wu <legendecas@gmail.com> Reviewed-By: Joyee Cheung <joyeec9h3@gmail.com>

This commit updates V8's postmortem metadata generation script to support V8 7.8. The following metadata has changed: - v8dbg_class_JSDate__value__Object - The postmortem metadata generation script needed to be updated. No action should be required by postmortem tools. - v8dbg_class_JSRegExp__source__Object - The postmortem metadata generation script needed to be updated. No action should be required by postmortem tools. PR-URL: nodejs#29694 Reviewed-By: Colin Ihrig <cjihrig@gmail.com> Reviewed-By: Anna Henningsen <anna@addaleax.net> Reviewed-By: Gus Caplan <me@gus.host> Reviewed-By: Jiawen Geng <technicalcute@gmail.com> Reviewed-By: Michaël Zasso <targos@protonmail.com> Reviewed-By: Tobias Nießen <tniessen@tnie.de> Reviewed-By: Ujjwal Sharma <usharma1998@gmail.com>

Reverts v8/v8@1b51dca Reverts v8/v8@1ab717d Partially reverts v8/v8@b0077b3 Backport-PR-URL: nodejs#29241 Backport-PR-URL: nodejs#28955 PR-URL: nodejs#28005 Reviewed-By: Anna Henningsen <anna@addaleax.net> Reviewed-By: Ujjwal Sharma <usharma1998@gmail.com>

Reverts v8/v8@4214933. Reverts v8/v8@c76f377. Reverts v8/v8@e0d7f81. Co-authored-by: Anna Henningsen <anna@addaleax.net> Backport-PR-URL: nodejs#29241 PR-URL: nodejs#28955

Co-authored-by: Anna Henningsen <anna@addaleax.net> PR-URL: nodejs#29241 Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>

deps: revert 2ac8bb719 from upstream V8 Original commit message: profiler: Allow querying SnapshotObjectId for native objects - Adds regular native heap entries to the HeapObjectsMap. - Adds a side map for keeping a mapping of native objects to their canonical heap entry that they have been merged into. Change-Id: Ida00628126ded1948ceb2a0cbe14da817af7f361 Bug: chromium:988350 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1720810 Commit-Queue: Michael Lippautz <mlippautz@chromium.org> Reviewed-by: Alexei Filippov <alph@chromium.org> Reviewed-by: Ulan Degenbaev <ulan@chromium.org> Cr-Commit-Position: refs/heads/master@{#63140} Refs: v8/v8@2ac8bb7 [The `SuppressMicrotaskExecutionScope` hack only works because the constructor that allows specifying an alternative microtask queue was never actually implemented.] deps: revert fb698cec37 from upstream V8 Original commit message: [isolate-data] Move hot fields closer to isolate_root In generated code, we access fields inside IsolateData through the root-register. On some platforms it is significantly cheaper to access things that are close to the root-register value than things that are located far away. The motivation for this CL was a 5% difference in Octane/Mandreel scores between // Part of the stack check. cmpq rsp,[r13+0x9ea8] and cmpq rsp,[r13-0x30] // Mandreel score improved by 5%. This moves the StackGuard up to fix Mandreel. As a drive-by, also move two more fields up that are accessed by each CallCFunction. Tbr: yangguo@chromium.org Bug: v8:9534,chromium:993264 Change-Id: I5418b63d40274a138e285fa3c99b96e33a814fb1 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1751345 Reviewed-by: Jakob Gruber <jgruber@chromium.org> Reviewed-by: Yang Guo <yangguo@chromium.org> Auto-Submit: Jakob Gruber <jgruber@chromium.org> Commit-Queue: Yang Guo <yangguo@chromium.org> Cr-Commit-Position: refs/heads/master@{#63187} Refs: v8/v8@fb698ce src: re-add flags removed in V8 7.8 as no-ops

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[v12.x] Backport update to V8 7.8 #30109

[v12.x] Backport update to V8 7.8 #30109

Commits on Jan 7, 2020