Bug=v8:8075
R=adamk@chromium.org,binji@chromium.org
Change-Id: I11ef5daccd043123b23e60c93ee0df79cabe9ccd
Reviewed-on: https://chromium-review.googlesource.com/c/1342948
Reviewed-by: Adam Klein <adamk@chromium.org>
Reviewed-by: Ben Smith <binji@chromium.org>
Commit-Queue: Aseem Garg <aseemgarg@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57917}
Two Fixes included to make V8 build work for Windows ARM64.
1. Don't emit ".def" and related macros to define function beginning, because they are invalid for Windows ARM64.
2. Set alignment of data section to 8 which is required for instruction which loads element from v8_Default_embedded_blob_.
Version 7.2.479
Performance and stability improvements on all platforms.
TBR=v8-ci-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com
Change-Id: I0bfea5dd8ed6c1340d11c13dcc2e492e7b22aa8c
Reviewed-on: https://chromium-review.googlesource.com/c/1352210
Reviewed-by: v8-ci-autoroll-builder <v8-ci-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com>
Cr-Original-Commit-Position: refs/heads/7.2.479@{#1}
Cr-Original-Branched-From: a8152aac7049aed0cc7e7437898de2fce2787288-refs/heads/master@{#57863}
Bug: chromium:893460
Reviewed-on: https://chromium-review.googlesource.com/c/1352791
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Commit-Queue: Tom Tan <Tom.Tan@microsoft.com>
Cr-Commit-Position: refs/heads/master@{#57915}
This is a reland of d5f4a33eb8
Original change's description:
> [cpu-profiler] Fix stack iterability for fast C calls with no exit frame
>
> Before fast C calls, store the current FP and PC on the isolate. When
> iterating frames in SafeStackFrameIterator, check if these fields are
> set and start iterating at the calling frame's FP instead of the current
> FP, which will be in C++ code. We need to do this because c_entry_fp is
> not set on the Isolate for Fast-C-Calls because we don't build an exit
> frame.
>
> This change makes stack samples that occur within 'Fast-C-Calls'
> iterable, meaning we can properly attribute ticks within the JS caller.
>
> Fast-C-Calls can't call back into JS code, so we can only ever have one
> such call on the stack at a time, allowing us to store the FP on the
> isolate rather than the stack.
>
> TBR=v8-mips-ports@googlegroups.com
>
> Bug: v8:8464, v8:7202
> Change-Id: I7bf39eba779dad34754d5759d741c421b362a406
> Reviewed-on: https://chromium-review.googlesource.com/c/1340241
> Commit-Queue: Peter Marshall <petermarshall@chromium.org>
> Reviewed-by: Jakob Gruber <jgruber@chromium.org>
> Reviewed-by: Martyn Capewell <martyn.capewell@arm.com>
> Reviewed-by: Alexei Filippov <alph@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#57896}
TBR=v8-mips-ports@googlegroups.comTBR=jgruber@chromium.org
Bug: v8:8464, v8:7202
Change-Id: I5f37ded4ea572e8e9890ba186aa3d74a0dfc1274
Reviewed-on: https://chromium-review.googlesource.com/c/1354042
Reviewed-by: Peter Marshall <petermarshall@chromium.org>
Commit-Queue: Peter Marshall <petermarshall@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57912}
These two tests fail if the memory used by builtins increases too much.
They aren't intended to monitor the memory used by builtins, so these
failures are spurious.
Bug: v8:8521
Change-Id: I67e61abe30aaf69aeb3e6a2c885795061a318851
Reviewed-on: https://chromium-review.googlesource.com/c/1354041
Commit-Queue: Peter Marshall <petermarshall@chromium.org>
Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57911}
This implements arithmetic operations on i64, as well as eqz
and conditional set for the arm32 port of Liftoff.
Bug: v8:6600
Change-Id: I21dc0f820e1429392599a5813c44b938c38093a2
Reviewed-on: https://chromium-review.googlesource.com/c/1348082
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57910}
This allows f32 floor, ceil, trunc, and nearest_int to use a C fallback in
Liftoff in the same way that f64 rounding can.
Bug: v8:6600
Change-Id: I8b88d806633bcfe2d2dfac9defaf60e551bf21b1
Reviewed-on: https://chromium-review.googlesource.com/c/1353898
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57909}
This saves a few control merges in Liftoff, and might also generate
smaller graphs in Turbofan.
R=titzer@chromium.org
Bug: v8:6600, v8:8423
Change-Id: Ice921f8b048809bc38b820b94688f482e67bd386
Reviewed-on: https://chromium-review.googlesource.com/c/1354039
Reviewed-by: Ben Titzer <titzer@chromium.org>
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57907}
This constant is unused, and should never be used, since name sections
are encoded as an unknown section with the special name "name".
R=ahaas@chromium.org
Change-Id: I2fa1a21506dbe30033aecb3c1bf9ad84b6b872bc
Reviewed-on: https://chromium-review.googlesource.com/c/1352305
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57905}
This makes changes to the generic code in Liftoff to support f32 values on the
arm32 port, but does not implement any handling of them in practice.
Bug: v8:6600
Change-Id: Ia1587c4eee0158ef6b0caa46b6b212cb96ef579f
Reviewed-on: https://chromium-review.googlesource.com/c/1352287
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57902}
This reduces wasm's ABI on Arm to only using the even-numbered float registers
in anticipation of Liftoff supporting f32 values on the arm32 port. This is due
to Liftoff assuming a one-to-one mapping between double and float registers.
The ABI must be restricted in order to allow Liftoff compiled and Turbofan
compiled functions to call each other. Turbofan continues to use all float
registers internally however.
Bug: v8:6600
Change-Id: I47d91b8216136e57f42fd9665ed57ec631eb0374
Reviewed-on: https://chromium-review.googlesource.com/c/1352278
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Reviewed-by: Bill Budge <bbudge@chromium.org>
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57901}
This reverts commit d5f4a33eb8.
Reason for revert: Seems to cause a no snapshot build failure - https://ci.chromium.org/p/v8/builders/luci.v8.ci/V8%20Linux%20-%20nosnap%20-%20debug/21967
Original change's description:
> [cpu-profiler] Fix stack iterability for fast C calls with no exit frame
>
> Before fast C calls, store the current FP and PC on the isolate. When
> iterating frames in SafeStackFrameIterator, check if these fields are
> set and start iterating at the calling frame's FP instead of the current
> FP, which will be in C++ code. We need to do this because c_entry_fp is
> not set on the Isolate for Fast-C-Calls because we don't build an exit
> frame.
>
> This change makes stack samples that occur within 'Fast-C-Calls'
> iterable, meaning we can properly attribute ticks within the JS caller.
>
> Fast-C-Calls can't call back into JS code, so we can only ever have one
> such call on the stack at a time, allowing us to store the FP on the
> isolate rather than the stack.
>
> TBR=v8-mips-ports@googlegroups.com
>
> Bug: v8:8464, v8:7202
> Change-Id: I7bf39eba779dad34754d5759d741c421b362a406
> Reviewed-on: https://chromium-review.googlesource.com/c/1340241
> Commit-Queue: Peter Marshall <petermarshall@chromium.org>
> Reviewed-by: Jakob Gruber <jgruber@chromium.org>
> Reviewed-by: Martyn Capewell <martyn.capewell@arm.com>
> Reviewed-by: Alexei Filippov <alph@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#57896}
TBR=alph@chromium.org,jgruber@chromium.org,petermarshall@chromium.org,martyn.capewell@arm.com,v8-arm-ports@googlegroups.com,v8-mips-ports@googlegroups.com,ibogosavljevic@wavecomp.com
Change-Id: I85f846e57b6fa845e7770c616435cebffdb2a245
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: v8:8464, v8:7202
Reviewed-on: https://chromium-review.googlesource.com/c/1352302
Reviewed-by: Maya Lekova <mslekova@chromium.org>
Commit-Queue: Maya Lekova <mslekova@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57899}
The test was flaky because it assumed that AllocatedAssemblerBuffer
would eventually return an address within near-call range. Rarely, this
did not happen (within the retry limit), and so the test would crash.
This fix allocates a single, kMaxWasmCodeMemory-sized buffer for the
test, and generates call sequences within that buffer.
BUG=v8:8245
Change-Id: I4b44d897c6cbda15a18ab992fa57805de3b2db29
Reviewed-on: https://chromium-review.googlesource.com/c/1347484
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Commit-Queue: Jacob Bramley <jacob.bramley@arm.com>
Cr-Commit-Position: refs/heads/master@{#57898}
Before fast C calls, store the current FP and PC on the isolate. When
iterating frames in SafeStackFrameIterator, check if these fields are
set and start iterating at the calling frame's FP instead of the current
FP, which will be in C++ code. We need to do this because c_entry_fp is
not set on the Isolate for Fast-C-Calls because we don't build an exit
frame.
This change makes stack samples that occur within 'Fast-C-Calls'
iterable, meaning we can properly attribute ticks within the JS caller.
Fast-C-Calls can't call back into JS code, so we can only ever have one
such call on the stack at a time, allowing us to store the FP on the
isolate rather than the stack.
TBR=v8-mips-ports@googlegroups.com
Bug: v8:8464, v8:7202
Change-Id: I7bf39eba779dad34754d5759d741c421b362a406
Reviewed-on: https://chromium-review.googlesource.com/c/1340241
Commit-Queue: Peter Marshall <petermarshall@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Martyn Capewell <martyn.capewell@arm.com>
Reviewed-by: Alexei Filippov <alph@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57896}
The MemoryInitImmediate and TableInitImmediate read a Memory/Table
index, followed by a segment index. If reading the first index fails, we
need to stop reading, or the decoder will read past the end.
Bug: chromium:907324
Change-Id: I3eb46c08d03e3b2e44ed4081d307b32c799abcec
Reviewed-on: https://chromium-review.googlesource.com/c/1351502
Commit-Queue: Ben Smith <binji@chromium.org>
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57889}
waiting_ flag is now set inside a lock to prevent data race. This means
that waiting_ is false when callback is called at start of wait. To deal
with the new behavior, NotifyWake now always tries to Notify and sets
interrupted_ flag which will be handled by any future wait.
R=binji@chromium.org
BUG=v8:8497
Change-Id: Ia4fd39bcf18875d9be21bafc176ab562b083e68b
Reviewed-on: https://chromium-review.googlesource.com/c/1351237
Commit-Queue: Aseem Garg <aseemgarg@chromium.org>
Reviewed-by: Ben Smith <binji@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57887}
See usage in the js-api tests; previously it would have thrown without
executing any tests. Now, it can be used to generate trapping functions.
Bug: v8:8319
Change-Id: Ia1643d8f337a10ea86c1e700c7702ed7d3ed0c97
Reviewed-on: https://chromium-review.googlesource.com/c/1352298
Reviewed-by: Adam Klein <adamk@chromium.org>
Commit-Queue: Adam Klein <adamk@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57885}
which are no longer derived from FixedArray and therefore IsFixedArray()
check no longer includes Contexts.
Bug: chromium:908877
Change-Id: I3aed0d38f5b1c00c9e27b7d5b6d29cdd5666ba86
Reviewed-on: https://chromium-review.googlesource.com/c/1352280
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Commit-Queue: Igor Sheludko <ishell@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57883}
That reduces the overhead of ParseAssignmentExpression at the cost of a few
more branches in the possible arrow head paths.
This also fixes the case where an outer scope of an arrow function didn't call eval
but a parameter initializer does. Previously the outer scope was also marked as
calling eval, causing worse performance. (Unlikely to happen though.)
Change-Id: I5263ef342f14e97372f5037fa659f32ec2ad6d34
Reviewed-on: https://chromium-review.googlesource.com/c/1352275
Commit-Queue: Toon Verwaest <verwaest@chromium.org>
Reviewed-by: Igor Sheludko <ishell@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57881}
This avoids leaving the heap in an invalid state if a GC occurs during
population of the cloned property array, as is done in other IC
builtins.
BUG=chromium:904167, v8:7611
R=jkummerow@chromium.org, ishell@chromium.org
Change-Id: I0350ed2d65b72e299f7109b7d5aa86331f60e940
Reviewed-on: https://chromium-review.googlesource.com/c/1350282
Commit-Queue: Caitlin Potter <caitp@igalia.com>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57879}
This CL introduces Tagged_t and AtomicTagged_t typedefs which represent
the storage type of tagged values in V8 heap.
Bug: v8:7703
Change-Id: Ib57e85ea073eaf896b6406cf0f62adcef9a114ce
Reviewed-on: https://chromium-review.googlesource.com/c/1352294
Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Commit-Queue: Igor Sheludko <ishell@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57878}
This patch refactors the parsing of object literal properties and
class literal properties, putting the out parameters into a pointer of
struct `ParsePropertyInfo`. This struct is also aware of its potition
so `ParsePropertyName()` can also use this information to error
when parsing a private name in an object literal. It also makes
sure that the `ClassLiteralProperty::Kind` are all inferred
from the `ParsePropertyKind` and get used right away instead of
being passed around as out parameters.
Bug: v8:8330
Change-Id: I4c52592dfcaa3c8df30c4aba4c46e5c675acb394
Reviewed-on: https://chromium-review.googlesource.com/c/1347904
Commit-Queue: Joyee Cheung <joyee@igalia.com>
Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57876}
When restarting a frame on returning from a debug break, we are going
to drop the current function frame, therefore the return value and
next bytecode are not going to be used. Special case these situations
since with bytecode flushing it is possible the SFI for the
executing function might have been flushed (if edited by liveedit)
which causes failures when trying to read from the bytecode array.
BUG=v8:8395
Change-Id: I18adaa5d91c244e6d13e8703ed41c300f793681d
Reviewed-on: https://chromium-review.googlesource.com/c/1352270
Commit-Queue: Ross McIlroy <rmcilroy@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57875}
Only log incrementally deserialized maps with --trace-maps instead of
iterating the whole heap and print all existing maps on every partial
deserialization for new contexts. This should greatly improve
performance of --trace-maps on websites with many iframes.
- Add helpers to share code: LogNewObjectEvents, LogScriptEvents,
LogNewMapEvents
- Link AllocationSites before any GC
Change-Id: I5322421a83e057518f871540691511c80bc7786a
Reviewed-on: https://chromium-review.googlesource.com/c/1342029
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57874}
This CL fixes some style issues and improves json output for the LoC
counting script tools/locs.py.
Notry: true
Change-Id: I0805904e44ab240945ef88dd8214abb8ae02cf7d
Reviewed-on: https://chromium-review.googlesource.com/c/1352271
Commit-Queue: Sigurd Schneider <sigurds@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57873}
Unfortunately the previous strategy was slower but more memory efficient. For now simply revert.
Revert "[zone] Use 32kb instead of 1MB as high zone page size"
Revert "[zone] Get rid of the Zone's segment pool"
Revert "[zone] Further simplify zone expansion, use single default page size"
Bug: chromium:908359
Change-Id: I649542e7e61eef0c14a26ffd21039e8340ab4d04
Reviewed-on: https://chromium-review.googlesource.com/c/1351027
Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Commit-Queue: Toon Verwaest <verwaest@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57872}
This CL fixes allocation size alignment violation when allocating store buffer.
If the actual CommitPageSize happens to be bigger than kMinExpectedOSPageSize
we will have a bit of memory wastage but that's a fair trade-off for having
fast store buffer overflow check in write barriers.
Change-Id: I1d775aa8b203cb198e8332477b0bc2befcd9b006
Reviewed-on: https://chromium-review.googlesource.com/c/1351007
Commit-Queue: Igor Sheludko <ishell@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57871}
