225465 2021-05-06 09:48:40 -0700 Reduce use of dmb ish on ARM64 2021-05-06 13:57:33 -0700 1 1 1 Unclassified WebKit JavaScriptCore Other All All RESOLVED FIXED InRadar P2 Normal --- 1 fpizlo fpizlo benjamin cdumez cmarcelo ews-watchlist keith_miller mark.lam msaboff saam tzagallo webkit-bug-importer oldest_to_newest 1757463 0 fpizlo 2021-05-06 09:48:40 -0700 We use loadLoadFence a lot, often in situations like: Foo* ptr = loadStuff; loadLoadFence(); use ptr On ARM64, we don't need a dmb ish here. We also use loadLoadFence in some places where I can't actually think of any good reason for the fence other than paranoia. 1757464 1 427897 fpizlo 2021-05-06 09:49:06 -0700 Created attachment 427897 the patch 1757466 2 427897 fpizlo 2021-05-06 09:49:37 -0700 Comment on attachment 427897 the patch Ooops forgot changeling 1757536 3 427912 fpizlo 2021-05-06 11:37:31 -0700 Created attachment 427912 the patch 1757573 4 427912 keith_miller 2021-05-06 12:43:26 -0700 Comment on attachment 427912 the patch r=me 1757574 5 ews-feeder 2021-05-06 12:44:03 -0700 Creating invalid ChangeLogEntry: Traceback (most recent call last): File "Tools/Scripts/webkit-patch", line 80, in <module> main() File "Tools/Scripts/webkit-patch", line 75, in main WebKitPatch(os.path.abspath(__file__)).main() File "/Volumes/Data/worker/Commit-Queue/build/Tools/Scripts/webkitpy/tool/multicommandtool.py", line 305, in main result = command.check_arguments_and_execute(options, args, self) File "/Volumes/Data/worker/Commit-Queue/build/Tools/Scripts/webkitpy/tool/multicommandtool.py", line 123, in check_arguments_and_execute return self.execute(options, args, tool) or 0 File "/Volumes/Data/worker/Commit-Queue/build/Tools/Scripts/webkitpy/tool/commands/abstractsequencedcommand.py", line 55, in execute self._sequence.run_and_handle_errors(tool, options, state) File "/Volumes/Data/worker/Commit-Queue/build/Tools/Scripts/webkitpy/tool/commands/stepsequence.py", line 73, in run_and_handle_errors self._run(tool, options, state) File "/Volumes/Data/worker/Commit-Queue/build/Tools/Scripts/webkitpy/tool/commands/stepsequence.py", line 67, in _run step(tool, options).run(state) File "/Volumes/Data/worker/Commit-Queue/build/Tools/Scripts/webkitpy/tool/steps/validatereviewer.py", line 52, in run changelog_entry = ChangeLog(changelog_path).latest_entry() File "/Volumes/Data/worker/Commit-Queue/build/Tools/Scripts/webkitpy/common/checkout/changelog.py", line 377, in latest_entry return self.parse_latest_entry_from_file(changelog_file) File "/Volumes/Data/worker/Commit-Queue/build/Tools/Scripts/webkitpy/common/checkout/changelog.py", line 323, in parse_latest_entry_from_file return next(cls.parse_entries_from_file(changelog_file)) File "/Volumes/Data/worker/Commit-Queue/build/Tools/Scripts/webkitpy/common/checkout/changelog.py", line 362, in parse_entries_from_file yield ChangeLogEntry(''.join(entry_lines[:-1]), revision=most_probable_revision) File "/Volumes/Data/worker/Commit-Queue/build/Tools/Scripts/webkitpy/common/checkout/changelog.py", line 112, in __init__ self._parse_entry() File "/Volumes/Data/worker/Commit-Queue/build/Tools/Scripts/webkitpy/common/checkout/changelog.py", line 220, in _parse_entry self._date_line = match.group() AttributeError: 'NoneType' object has no attribute 'group' 1757618 6 ews-feeder 2021-05-06 13:43:59 -0700 Creating invalid ChangeLogEntry: Traceback (most recent call last): File "Tools/Scripts/webkit-patch", line 80, in <module> main() File "Tools/Scripts/webkit-patch", line 75, in main WebKitPatch(os.path.abspath(__file__)).main() File "/Volumes/Data/worker/Commit-Queue/build/Tools/Scripts/webkitpy/tool/multicommandtool.py", line 305, in main result = command.check_arguments_and_execute(options, args, self) File "/Volumes/Data/worker/Commit-Queue/build/Tools/Scripts/webkitpy/tool/multicommandtool.py", line 123, in check_arguments_and_execute return self.execute(options, args, tool) or 0 File "/Volumes/Data/worker/Commit-Queue/build/Tools/Scripts/webkitpy/tool/commands/abstractsequencedcommand.py", line 55, in execute self._sequence.run_and_handle_errors(tool, options, state) File "/Volumes/Data/worker/Commit-Queue/build/Tools/Scripts/webkitpy/tool/commands/stepsequence.py", line 73, in run_and_handle_errors self._run(tool, options, state) File "/Volumes/Data/worker/Commit-Queue/build/Tools/Scripts/webkitpy/tool/commands/stepsequence.py", line 67, in _run step(tool, options).run(state) File "/Volumes/Data/worker/Commit-Queue/build/Tools/Scripts/webkitpy/tool/steps/validatereviewer.py", line 52, in run changelog_entry = ChangeLog(changelog_path).latest_entry() File "/Volumes/Data/worker/Commit-Queue/build/Tools/Scripts/webkitpy/common/checkout/changelog.py", line 377, in latest_entry return self.parse_latest_entry_from_file(changelog_file) File "/Volumes/Data/worker/Commit-Queue/build/Tools/Scripts/webkitpy/common/checkout/changelog.py", line 323, in parse_latest_entry_from_file return next(cls.parse_entries_from_file(changelog_file)) File "/Volumes/Data/worker/Commit-Queue/build/Tools/Scripts/webkitpy/common/checkout/changelog.py", line 362, in parse_entries_from_file yield ChangeLogEntry(''.join(entry_lines[:-1]), revision=most_probable_revision) File "/Volumes/Data/worker/Commit-Queue/build/Tools/Scripts/webkitpy/common/checkout/changelog.py", line 112, in __init__ self._parse_entry() File "/Volumes/Data/worker/Commit-Queue/build/Tools/Scripts/webkitpy/common/checkout/changelog.py", line 220, in _parse_entry self._date_line = match.group() AttributeError: 'NoneType' object has no attribute 'group' 1757628 7 fpizlo 2021-05-06 13:56:29 -0700 Landed in https://trac.webkit.org/changeset/277117/webkit 1757630 8 webkit-bug-importer 2021-05-06 13:57:33 -0700 <rdar://problem/77623820> 427897 2021-05-06 09:49:06 -0700 2021-05-06 11:37:31 -0700 the patch fewer-fences.patch text/plain 9038 fpizlo SW5kZXg6IFNvdXJjZS9KYXZhU2NyaXB0Q29yZS9ieXRlY29kZS9DYWxsTGlua1N0YXR1cy5jcHAK PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09 PT09PT09PT09PQotLS0gU291cmNlL0phdmFTY3JpcHRDb3JlL2J5dGVjb2RlL0NhbGxMaW5rU3Rh dHVzLmNwcAkocmV2aXNpb24gMjc2ODU3KQorKysgU291cmNlL0phdmFTY3JpcHRDb3JlL2J5dGVj b2RlL0NhbGxMaW5rU3RhdHVzLmNwcAkod29ya2luZyBjb3B5KQpAQCAtMTkzLDcgKzE5Myw3IEBA IENhbGxMaW5rU3RhdHVzIENhbGxMaW5rU3RhdHVzOjpjb21wdXRlRnIKICAgICAvLyBuZXZlciBt 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