Maya Lekova 8b9d0138b3 Revert "cppgc: Rework GC info creation" ... This reverts commit d76064df4f. Reason for revert: Breaking MSAN - https://ci.chromium.org/ui/p/v8/builders/ci/V8%20Linux%20-%20arm64%20-%20sim%20-%20MSAN/37390/overview Original change's description: > cppgc: Rework GC info creation > > Previously, GCInfoTrait relied on the non-trivial constructor of a > static object for registering a new GCInfo object. The generated code > is required to be thread-safe which is achieved by introducing guard > variables in the compiler. > > The new version is similar to Blink in that it relies on zero > initialization of a trivially constructible atomic. > > Compared to guard variables that are created per GCInfo registration, > the atomic creates less bloat (~20bytes/type) and also results in a > better fast path. > > Minimum example: https://godbolt.org/z/qrdTf8 > > Bug: chromium:1056170 > Change-Id: I95efbbf035b655d0440c9477f5391e310e2b71fa > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2764750 > Reviewed-by: Omer Katz <omerkatz@chromium.org> > Commit-Queue: Michael Lippautz <mlippautz@chromium.org> > Cr-Commit-Position: refs/heads/master@{#73463} Bug: chromium:1056170 Change-Id: I71960103513d6db7789d752b70727d014c2e6406 No-Presubmit: true No-Tree-Checks: true No-Try: true Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2767020 Auto-Submit: Maya Lekova <mslekova@chromium.org> Reviewed-by: Michael Lippautz <mlippautz@chromium.org> Commit-Queue: Michael Lippautz <mlippautz@chromium.org> Commit-Queue: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com> Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com> Cr-Commit-Position: refs/heads/master@{#73466}		2021-03-17 12:01:49 +00:00
..
api-constants.h	cppgc: Mark object as constructed using std::atomic::fetch_or	2020-11-11 17:30:18 +00:00
atomic-entry-flag.h	cppgc: Add write barrier	2020-06-02 18:03:35 +00:00
caged-heap-local-data.h	cppgc: Avoid dispatching write barrier during atomic pause	2021-02-08 12:56:09 +00:00
compiler-specific.h	cppgc: Add initial implementation of young generation	2020-06-17 06:48:10 +00:00
finalizer-trait.h	cppgc: Add public target to build against	2020-04-21 12:48:23 +00:00
gc-info.h	Revert "cppgc: Rework GC info creation"	2021-03-17 12:01:49 +00:00
logging.h	Fix LINT exceptions across the code base	2020-04-27 16:37:04 +00:00
name-trait.h	cppgc: Fix compile-time typename for release builds	2020-10-09 09:33:02 +00:00
persistent-node.h	cppgc: Fix {Weak}CrossThreadPersistent destruction	2021-03-09 21:36:00 +00:00
pointer-policies.h	cppgc: Add checks and locks to (Weak)CrossThreadPersistents	2021-03-08 14:01:13 +00:00
prefinalizer-handler.h	cppgc: Typo and signature fix	2020-09-02 07:34:20 +00:00
write-barrier.h	cppgc: Implement process-global state accessors.	2021-02-17 22:37:24 +00:00