When inlined allocations are disabled, the space->limit() does not point to the
end of the current page. Instead, it points to the current allocation pointer so
is the same as space->top().
See how the limit is computed, if heap()->inline_allocation_disabled(), then the
limit will be the same as the requested allocation area:
```
Address SpaceWithLinearArea::ComputeLimit(Address start, Address end,
size_t min_size) {
DCHECK_GE(end - start, min_size);
if (heap()->inline_allocation_disabled()) {
// Fit the requested area exactly.
return start + min_size;
} else if (SupportsInlineAllocation() && AllocationObserversActive()) {
// ...
} else {
// The entire node can be used as the linear allocation area.
return end;
}
}
```
If we want to simulate filling up a whole page in the new space, we can instead
look at the ToSpace's page_high() which will be the end of the current page in
which we're allocating.
Bug: v8:9906
Change-Id: I81113d151bc083cd22d17ea1a4fbae7fef9dff6d
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1886914
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Commit-Queue: Pierre Langlois <pierre.langlois@arm.com>
Cr-Commit-Position: refs/heads/master@{#64612}
This change begins making use of the fact that Torque now knows about
the relationship between classes and instance types, to replace a few
repetitive lists:
- Instance type checkers (single and range), defined in
src/objects/instance-type.h
- Verification dispatch in src/diagnostics/objects-debug.cc
- Printer dispatch in src/diagnostics/objects-printer.cc
- Postmortem object type detection in
tools/debug_helper/get-object-properties.cc
Torque is updated to generate four macro lists for the instance types,
representing all of the classes separated in two dimensions: classes
that correspond to a single instance type versus those that have a
range, and classes that are fully defined in Torque (with fields and
methods inside '{}') versus those that are only declared. The latter
distinction is useful because fully-defined classes are guaranteed to
correspond to real C++ classes, whereas only-declared classes are not.
A few other changes were required to make the lists above work:
- Renamed IsFiller to IsFreeSpaceOrFiller to better reflect what it does
and avoid conflicts with the new macro-generated IsFiller method. This
is the part I'm most worried about: I think the new name is an
improvement for clarity and consistency, but I could imagine someone
typing IsFiller out of habit and introducing a bug. If we'd prefer to
keep the name IsFiller, my other idea is to rename FreeSpace to
VariableSizeFiller and Filler to FixedSizeFiller.
- Made Tuple3 extend from Struct, not Tuple2, because IsTuple2 is
expected to check for only TUPLE2_TYPE and not include TUPLE3_TYPE.
- Normalized the dispatched behavior for BigIntBase and HeapNumber.
- Added a few new object printers.
Bug: v8:7793
Change-Id: I5462bb105f8a314baa59bd6ab6ab6215df6f313c
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1860314
Commit-Queue: Seth Brenith <seth.brenith@microsoft.com>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
Reviewed-by: Dan Elphick <delphick@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#64597}
This function was only used for the write barrier since the store
buffer only stored slots and needed a way to get to the object's start.
Now that we insert into the remembered set directly from the write
barrier this isn't an issue anymore: the write barrier knows the
object start.
Change-Id: I701465ea40b7c4ee20404ecbcf3750e5fa6fd219
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1876049
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Commit-Queue: Dominik Inführ <dinfuehr@chromium.org>
Cr-Commit-Position: refs/heads/master@{#64518}
Add FLAG_always_promote_young_mc that always promotes young objects
during a Full GC when enabled. This flag guarantees that the young gen
and the sweeping remembered set are empty after a full GC.
This CL also makes use of the fact that the sweeping remembered set is
empty and only invalidates an object when there were old-to-new slots
recorded on its page.
Bug: chromium:1014943
Change-Id: Idfb13dfbe76bad5ec8b485a60bebc30531aec649
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1863201
Commit-Queue: Dominik Inführ <dinfuehr@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#64348}
This makes allocation of backing stores more robust by perfoming GCs
on allocation failure. The GCs help if there are existing large backing
stores that are retained by dead JSArrayBuffer objects.
Bug: chromium:1008938, v8:9380
Change-Id: Ic80b29214b8843427dfcdd141df71363821afe71
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1855998
Commit-Queue: Ulan Degenbaev <ulan@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Cr-Commit-Position: refs/heads/master@{#64241}
For this, all Torque stub-linkage builtins use TFC instead of TFS,
with a custom descriptor added to interface-descriptors.h
To avoid having complex logic in the generated code, the new class
TorqueInterfaceDescriptor contains the logic to create a
CallInterfaceDescriptor from a signature consisting of TNode types.
As an example and test, this CL ports StringCharAt to Torque.
Bug: v8:7793
Change-Id: I8339d2ad6e4f908ebdc3b8d30244e4bcbd974f21
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1798427
Reviewed-by: Hannes Payer <hpayer@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Commit-Queue: Tobias Tebbi <tebbi@chromium.org>
Cr-Commit-Position: refs/heads/master@{#64148}
Now that sweeping uses its own RememberedSet, pre-freeing of empty
buckets is not necessary anymore. Mutator inserts into a different
remembered set, than the sweeper removes slots from.
Bug: v8:9454
Change-Id: I65d046926aa82aeb9eca7694e6a7eff1331d7e01
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1835547
Commit-Queue: Dominik Inführ <dinfuehr@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#64114}
Since https://crrev.com/c/1771783 the mutator owns the old-to-new
remembered set, while the sweeper modifies the sweeping-slot-set.
This allows us to update the old-to-new remembered set non-atomically.
In this CL the mutator now inserts non-atomically into the remembered
set. The AccessMode is now explicit for Insert-operations as well.
Bug: v8:9454
Change-Id: I94730345f7dd34fe309839969330687c94b3080b
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1803652
Commit-Queue: Dominik Inführ <dinfuehr@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63971}
Added tests for the scenario when the fillers would be evacuated within the
new space and when they would be promoted into the old space.
The fix is to treat the deferred handles the same as the local ones:
call FixStaleLeftTrimmedHandlesVisitor for them.
Bug: v8:9739
Change-Id: Idac233716295f53793657164561bb81f8f729065
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1809815
Commit-Queue: Irina Yatsenko <irinayat@microsoft.com>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63880}
- There was no use of DisallowDeferredHandleDereference, so remove the
corresponding assertion scope and related code.
- Make DeferredHandleScope::Detach return a unique_ptr rather than a
raw pointer for clarity.
- Store DeferredHandles in compilation info as unique_ptr rather than
shared_ptr, as it's never shared.
- Remove some unused methods.
Change-Id: I8327399fd291eba782820dd7a62c3bbdffedac4d
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1805645
Commit-Queue: Georg Neis <neis@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63828}
SharedFunctionInfos that do not belong to a script were tracked in
noscript_shared_function_infos. However this was only used in object-stats.
Remove this since it was actually leaking memory in some use cases.
Bug: v8:9674
Change-Id: I9482f7e5dedf975666a70684b3d2ea04c9a23518
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1798423
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Reviewed-by: Michael Stanton <mvstanton@chromium.org>
Commit-Queue: Dominik Inführ <dinfuehr@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63685}
Since the mutability of HeapNumbers is determined by their owning
object's descriptor array, we can remove the MutableHeapNumber type
entirely, at the cost of a few fewer DCHECKs and a couple of TODOs
to use the descriptor array information.
This is a necessary step towards a follow-up which allows in-place
Double -> Tagged transitions
Design doc: https://docs.google.com/document/d/1VeKIskAakxQFnUBNkhBmVswgR7Vk6T1kAyKRLhqerb4/
Bug: v8:9606
Change-Id: I13209f9c86f1f204088f6fd80089e17d956b4a50
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1743972
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63294}
Do not pass it as argument to CreateObjectFillerAt and remove the enum.
Bug: v8:9454
Change-Id: Iafa37acbfea73d3cabb1732dbec0944db859fac2
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1762017
Reviewed-by: Peter Marshall <petermarshall@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Commit-Queue: Dominik Inführ <dinfuehr@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63282}
This reverts commit 60843b426b.
Reason for revert: TSAN detected issue between Scavenge workers.
One task could invoke RefillFreeList(), while the other task iterates the remembered set of a swept page.
Original change's description:
> Use list of invalidated objects for old-to-new refs
>
> Instead of inserting "deletion" entries into the store buffer, keep a
> list of invalidated objects to filter out invalid old-to-new slots.
>
> The first CL https://crrev.com/c/1704109 got reverted because both the
> sweeper and the main task were modifying the invalidated slots data
> structure concurrently. This CL changes this, such that the sweeper
> only modifies the invalidated slots during the final atomic pause when
> the main thread is not running. The sweeper does not need to clean this
> data structure after the pause, since the "update pointers" phase
> already removed all invalidated slots.
>
> The second CL https://crrev.com/c/1733081 got reverted because the
> sweeper might find more free space than the full GC before it. If an
> object shrinks after the pause but before the sweep, the invalidated
> object might span free memory and potentially new allocated objects.
> Therefore shrink invalidated objects when processing swept pages on
> the main thread. Also clean recorded slots in the gap.
>
> TBR=petermarshall@chromium.org
>
> Bug: v8:9454
> Change-Id: I80d1fa3bbc24e97f7c97a373aaad66f105456f12
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1751795
> Commit-Queue: Dominik Inführ <dinfuehr@chromium.org>
> Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#63239}
TBR=ulan@chromium.org,hpayer@chromium.org,dinfuehr@chromium.org
Change-Id: I9c6a371ebe36a1873acbe0d6c6a75dd2f5a55f4e
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: v8:9454
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1760817
Reviewed-by: Dominik Inführ <dinfuehr@chromium.org>
Commit-Queue: Dominik Inführ <dinfuehr@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63253}
Instead of inserting "deletion" entries into the store buffer, keep a
list of invalidated objects to filter out invalid old-to-new slots.
The first CL https://crrev.com/c/1704109 got reverted because both the
sweeper and the main task were modifying the invalidated slots data
structure concurrently. This CL changes this, such that the sweeper
only modifies the invalidated slots during the final atomic pause when
the main thread is not running. The sweeper does not need to clean this
data structure after the pause, since the "update pointers" phase
already removed all invalidated slots.
The second CL https://crrev.com/c/1733081 got reverted because the
sweeper might find more free space than the full GC before it. If an
object shrinks after the pause but before the sweep, the invalidated
object might span free memory and potentially new allocated objects.
Therefore shrink invalidated objects when processing swept pages on
the main thread. Also clean recorded slots in the gap.
TBR=petermarshall@chromium.org
Bug: v8:9454
Change-Id: I80d1fa3bbc24e97f7c97a373aaad66f105456f12
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1751795
Commit-Queue: Dominik Inführ <dinfuehr@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63239}
This reverts commit e2f98ec22c.
Reason for revert: Caused performance regression in ArrayLiteralInitialSpreadSmallHoley.
Original change's description:
> Use list of invalidated objects for old-to-new refs
>
> Instead of inserting "deletion" entries into the store buffer, keep
> a list of invalidated objects to filter out invalid old-to-new slots.
>
> The first CL https://crrev.com/c/1704109 got reverted because both the sweeper and the main task were modifying the invalidated slots data structure concurrently. This CL changes this, such that the sweeper only modifies the invalidated slots during the final atomic pause when the main thread is not running. The sweeper does not need to clean this data structure after the pause, since the "update pointers" phase already removed all invalidated slots.
>
> Bug: v8:9454
> Change-Id: Iffb5bf96de2c89eee1ee1231a3414a0f2a155cbc
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1733081
> Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
> Reviewed-by: Peter Marshall <petermarshall@chromium.org>
> Commit-Queue: Dominik Inführ <dinfuehr@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#63087}
TBR=ulan@chromium.org,petermarshall@chromium.org,dinfuehr@chromium.org
# Not skipping CQ checks because original CL landed > 1 day ago.
Bug: v8:9454
Change-Id: I328b9f72df45fc9570d4a4d1b5389eac010638c7
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1743970
Commit-Queue: Dominik Inführ <dinfuehr@chromium.org>
Reviewed-by: Dominik Inführ <dinfuehr@chromium.org>
Reviewed-by: Peter Marshall <petermarshall@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63131}
Instead of inserting "deletion" entries into the store buffer, keep
a list of invalidated objects to filter out invalid old-to-new slots.
The first CL https://crrev.com/c/1704109 got reverted because both the sweeper and the main task were modifying the invalidated slots data structure concurrently. This CL changes this, such that the sweeper only modifies the invalidated slots during the final atomic pause when the main thread is not running. The sweeper does not need to clean this data structure after the pause, since the "update pointers" phase already removed all invalidated slots.
Bug: v8:9454
Change-Id: Iffb5bf96de2c89eee1ee1231a3414a0f2a155cbc
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1733081
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Reviewed-by: Peter Marshall <petermarshall@chromium.org>
Commit-Queue: Dominik Inführ <dinfuehr@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63087}
This reverts commit dcac02ee81.
Reason for revert: TSAN discovered issue with cleaning invalidated slots in sweeper threads and inserting new slots in the main thread.
Original change's description:
> Use list of invalidated objects for old-to-new refs
>
> Instead of inserting "deletion" entries into the store buffer, keep
> a list of invalidated objects to filter out invalid old-to-new slots.
>
> Bug: v8:9454
> Change-Id: Icd21d8cb2159190457f54d0f8b56742ecc820419
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1695474
> Commit-Queue: Dominik Inführ <dinfuehr@chromium.org>
> Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
> Reviewed-by: Peter Marshall <petermarshall@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#62744}
TBR=ulan@chromium.org,petermarshall@chromium.org,dinfuehr@chromium.org
Change-Id: I4278e9100c76657663e0a6a62f5d86bb3a343c0e
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: v8:9454
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1704109
Reviewed-by: Dominik Inführ <dinfuehr@chromium.org>
Commit-Queue: Dominik Inführ <dinfuehr@chromium.org>
Cr-Commit-Position: refs/heads/master@{#62746}
Instead of inserting "deletion" entries into the store buffer, keep
a list of invalidated objects to filter out invalid old-to-new slots.
Bug: v8:9454
Change-Id: Icd21d8cb2159190457f54d0f8b56742ecc820419
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1695474
Commit-Queue: Dominik Inführ <dinfuehr@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Reviewed-by: Peter Marshall <petermarshall@chromium.org>
Cr-Commit-Position: refs/heads/master@{#62744}
This reverts commit 907f3a64b7.
Reason for revert: speculative revert for v8:9445
I will reland if the crash is not fixed by the revert.
Original change's description:
> [heap] Replace ConcurrentSweepingState with a MemoryChunk local epoch counter.
>
> Bug: v8:9093
> Change-Id: I7c415fd0ea9e48f7ee189115f164825cb120695b
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1624213
> Commit-Queue: Hannes Payer <hpayer@chromium.org>
> Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#62423}
TBR=ulan@chromium.org,hpayer@chromium.org
# Not skipping CQ checks because original CL landed > 1 day ago.
Bug: v8:9093, v8:9445
Change-Id: Ia81a52579dc0a89f57ee41c7d0f8b1ba0f9bba81
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1691025
Commit-Queue: Ulan Degenbaev <ulan@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#62575}
Large regexp results may exceed kMaxRegularHeapObjectSize and must
thus be allocated in large object space.
Drive-by: Rename '%InNewSpace' to '%InYoungGeneration'.
Bug: chromium:976627
Change-Id: I38b5aecb95a95cf2fdbb24d19550cec34361a09d
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1674027
Reviewed-by: Igor Sheludko <ishell@chromium.org>
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#62368}
This is a reland of 93b6c866f3
The bug that caused the test failures has been fixed in
https://chromium-review.googlesource.com/c/v8/v8/+/1667417
Original change's description:
> [csa] add hint to CAST error message to break in mksnapshot
>
> Change-Id: I51a22de5d6367c38056ea91eface4f69f6651993
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1664069
> Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
> Reviewed-by: Michael Stanton <mvstanton@chromium.org>
> Commit-Queue: Tobias Tebbi <tebbi@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#62274}
TBR=mvstanton@chromium.org, ulan@chromium.org
Change-Id: I7bb0b4237b6eada82456bc9cf2f293d5986f0d65
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1675954
Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
Reviewed-by: Sigurd Schneider <sigurds@chromium.org>
Commit-Queue: Tobias Tebbi <tebbi@chromium.org>
Cr-Commit-Position: refs/heads/master@{#62353}
This CL renames jsregexp.{h,cc} to regexp.{h,cc}, hides all non-public
functions of RegExpImpl in the .cc file, and renames the public parts
of RegExpImpl to just RegExp. Include directives from outside the
src/regexp directory are limited to regexp.h, regexp-stack.h, and
regexp-utils.h. We also expose all result codes that can be returned
by irregexp code (including RETRY) on the public header since they
are needed elsewhere, e.g. in builtins.
Bug: v8:9359
Change-Id: Iae1a01ac9f6e1e4dc168f3fbe8fe8679cb6b1259
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1662297
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Reviewed-by: Peter Marshall <petermarshall@chromium.org>
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#62240}
Rename LargeObjectIterator to LargeObjectSpaceObjectIterator.
Rename SemiSpaceIterator to SemiSpaceObjectIterator.
Rename CombinedHeapIterator to CombinedHeapObjectIterator.
Rename ReadOnlyHeapIterator to ReadOnlyHeapObjectIterator.
Rename HeapIterator to HeapObjectIterator.
Rename HeapObjectIterator to PagedSpaceObjectIterator.
Rename PagedSpaces to PagedSpaceIterator.
Bug: v8:9183
Change-Id: If4bd65d81e50bb45d207a897baaca8b723e4f10b
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1645914
Reviewed-by: Hannes Payer <hpayer@chromium.org>
Reviewed-by: Dan Elphick <delphick@chromium.org>
Commit-Queue: Maciej Goszczycki <goszczycki@google.com>
Cr-Commit-Position: refs/heads/master@{#62217}
This CL is the starting point to convert all FrameArray users to
use StackTraceFrame objects instead.
Bug: v8:8742
Change-Id: I7bd0081dfd428e9914dedebd5065ac262aacec0b
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1627332
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Commit-Queue: Simon Zünd <szuend@chromium.org>
Cr-Commit-Position: refs/heads/master@{#62076}
The new API function is called ConfigureDefaultsFromHeapSize and
accepts two parameters: the initial and the maximum heap size.
Based on the given limits the function computes the default size
for the young and the old generation.
The patch also cleans up the existing functions to make them
consistent in terms of units and heap structure.
Bug: v8:9306
Change-Id: If2200a9cdb45b0b818a373207efe4e6426f7b688
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1631593
Commit-Queue: Ulan Degenbaev <ulan@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#62017}
As it stands most of ReadOnlySpace class's method are unusable once it
has been sealed, since all of its pages are read-only. Set owner_ to null
to ensure nothing unintentionally uses it.
This also helps with separating the ReadOnlySpace from the Heap class in
the future as ReadOnlySpace might not inherit from Space.
Bug: v8:7464
Change-Id: I3b24f20c644d6f5e23647bc1de4d256a20a0eb19
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1637800
Reviewed-by: Dan Elphick <delphick@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Commit-Queue: Maciej Goszczycki <goszczycki@google.com>
Cr-Commit-Position: refs/heads/master@{#61979}
This makes the API more consistent and reduces the cognitive load of
switching between 'next' and 'Next'.
Bug: v8:9183
Change-Id: Ia81b874374626887d6af8c90f8ac185812f0573f
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1635689
Reviewed-by: Yang Guo <yangguo@chromium.org>
Reviewed-by: Dan Elphick <delphick@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Commit-Queue: Maciej Goszczycki <goszczycki@google.com>
Cr-Commit-Position: refs/heads/master@{#61946}
The type of the argument makes it clear what we're internalizing, and this
allows us to choose either one based on a template parameter.
Change-Id: I6d7865e7fdef364f6cf10ff9267034df182d7539
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1624212
Commit-Queue: Toon Verwaest <verwaest@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61765}
This CL was generated by an automatic clang AST rewriter using this
matcher expression:
callExpr(
callee(
cxxMethodDecl(
hasName("operator->"),
ofClass(isSameOrDerivedFrom("v8::internal::Object"))
)
),
argumentCountIs(1)
)
The "->" at the expression location was then rewritten to ".".
R=jkummerow@chromium.orgTBR=mstarzinger@chromium.org,verwaest@chromium.org,yangguo@chromium.org
Bug: v8:9183, v8:3770
No-Try: true
No-Tree-Checks: true
Change-Id: I0a7ecabdeafe51d0cf427f5280af0c7cab96869e
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1624209
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Commit-Queue: Yang Guo <yangguo@chromium.org>
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61764}
Code that is being moved primarily deal with layout of a JSObject,
accessing properties and elements, and map transitions.
NOTREECHECKS=true
NOTRY=true
Bug: v8:9247
Change-Id: Ibce5d5926ac4021c8d40c4dd109948775ce1da58
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1613994
Commit-Queue: Yang Guo <yangguo@chromium.org>
Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61638}
