This is a reland of dcd91455fd
This CL fixes two more tests that were uncovered by the
non-concurrent marking bot.
Original change's description:
> [heap] Do not scan main thread handles when starting marking
>
> We do not need to scan main thread handles when starting incremental
> marking. This reduces the time to start incremental marking.
>
> Bug: v8:11645
> Change-Id: Ib99a13e7875f50fbfe5346ac0e186d8960ea1337
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2826124
> Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
> Commit-Queue: Dominik Inführ <dinfuehr@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#73994}
Bug: v8:11645
Change-Id: Id5b9dd0dcec08b6888a885b4f02783f674af90fc
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2831879
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Commit-Queue: Dominik Inführ <dinfuehr@chromium.org>
Cr-Commit-Position: refs/heads/master@{#74029}
Rename
- InterpreterEnterBytecodeDispatch to InterpreterEnterAtBytecode
- InterpreterEnterBytecodeAdvance to InterpreterEnterAtNextBytecode.
The reason for renaming is consistency with baseline trampolines that
have similar functionality, but the old names didn't fit for baseline
very well.
Change-Id: I35897972fdd71f3bb0db74820db2b9034144a3c8
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2830794
Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Auto-Submit: Patrick Thier <pthier@chromium.org>
Cr-Commit-Position: refs/heads/master@{#74027}
This changes the interaction between {NativeModule} and
{WasmCodeAllocator}. The {WasmCodeAllocator} is a field of
{NativeModule}, and only called directly by the {NativeModule}. So far,
there were two mutexes involved, the {allocation_mutex_} in
{NativeModule}, and {mutex_} in {WasmCodeAllocator}. This caused
problems with lock order inversion.
This CL thus merges the two mutex, by always locking the mutex in
{NativeModule} when calling a non-atomic method in {WasmCodeAllocator}.
This serializes slightly more code, but none of this should be
performance-critical.
This removes the awkward {OptionalLock} class and adds the "Locked"
suffix to a few methods to document that those can only be called
while holding the allocation mutex.
R=jkummerow@chromium.org
CC=dlehmann@google.com
Bug: v8:11663
Cq-Include-Trybots: luci.v8.try:v8_linux64_tsan_rel_ng
Cq-Include-Trybots: luci.v8.try:v8_linux64_tsan_isolates_rel_ng
Cq-Include-Trybots: luci.v8.try:v8_linux_arm64_gc_stress_dbg_ng
Cq-Include-Trybots: luci.v8.try:v8_linux_gc_stress_dbg_ng
Change-Id: I8895d61fef23a57b218e068532375bac941a5a77
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2831477
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Cr-Commit-Position: refs/heads/master@{#74026}
Makes ExternalRefEncoder work even if no isolate is available,
by separating V8 builtin external references from isolate dependent ones,
and making the first set available without providing an isolate.
This is used when disassembling external references in wasm functions.
Bug: v8:11373
Change-Id: I9a177618185a6e5612182bcb02be7cc1978e8f34
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2799511
Reviewed-by: Clemens Backes <clemensb@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Zhi An Ng <zhin@chromium.org>
Commit-Queue: Daan de Graaf <daagra@google.com>
Cr-Commit-Position: refs/heads/master@{#74025}
Should be unskipped once the linked issue is fixed.
Tbr: mvstanton@chromium.org
Bug: v8:11649
Change-Id: I9916c6f044a9c66d9a55d7783a619b2830a776ad
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2833916
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#74023}
The mechanisms don't interact well. NodeObserver assumes synchronous
compilation that finishes within the ObserverNodeScope. One could
ensure all relevant lifetimes (of the NodeObserver itself, and all
captured pointers) exceed that of all spawned jobs, but simply
disabling the additional concurrent job in these cases is a
pragmatic fix for now.
Bug: v8:11658
Change-Id: I41b2f96f0166b661cf0cca94ef809ca99475e420
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2833915
Auto-Submit: Jakob Gruber <jgruber@chromium.org>
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Cr-Commit-Position: refs/heads/master@{#74022}
Rolling v8/build: e00ea2a..41fbf5d
Rolling v8/third_party/aemu-linux-x64: 9sUPtFCh9UkUuiYa9MoTXIK9ycaDI3CAdFHoa7zIT9cC..RHTOD0RSgoWm-M1jtnmPhZKKrWS0SGcMPzXuBTCbIUYC
Rolling v8/third_party/catapult: https://chromium.googlesource.com/catapult/+log/02b5d39..d628425
Rolling v8/third_party/depot_tools: 9ceff71..efd29f6
Rolling v8/tools/clang: eefe475..d7dd881
Rolling v8/tools/luci-go: git_revision:4b61ac9cadfb8d19a09262c6e6f5342d9324acd0..git_revision:0f913477afc80d5c4b6609834d3bef6b44910e67
Rolling v8/tools/luci-go: git_revision:4b61ac9cadfb8d19a09262c6e6f5342d9324acd0..git_revision:0f913477afc80d5c4b6609834d3bef6b44910e67
Rolling v8/tools/luci-go: git_revision:4b61ac9cadfb8d19a09262c6e6f5342d9324acd0..git_revision:0f913477afc80d5c4b6609834d3bef6b44910e67
TBR=v8-waterfall-sheriff@grotations.appspotmail.com
Change-Id: I08ff3660ba06092fdc5d4030dd37a0e8f2046226
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2832753
Reviewed-by: v8-ci-autoroll-builder <v8-ci-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com>
Commit-Queue: v8-ci-autoroll-builder <v8-ci-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/master@{#74018}
This reverts commit d16eefe0f2.
It is not correct to check for node equality during the graph
construction phase, because we can have optimizations that will combine
same nodes. So it can happen that in wasm-compiler, the inputs to
shuffle are not the same, so we canonicalize using that knowledge that
it will not be the same, and allow indices > 15. But later we can have
optimizations that combine the 2 inputs (e.g. splat of the same
constants), and the instruction selector will see that the input nodes
are the same.
Bug: v8:11542,chromium:1199662
Change-Id: I21c175f4707708038710147f64d687d1b14c6ecc
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2829986
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Reviewed-by: Bill Budge <bbudge@chromium.org>
Cr-Commit-Position: refs/heads/master@{#74017}
This reverts commit 6124a534b2.
Reason for revert: On suspicion of blocking V8 roll: https://ci.chromium.org/ui/p/chromium/builders/try/win10_chromium_x64_rel_ng/839568/overview
Original change's description:
> [fastcall] Add support for leaf interface type checks
>
> This CL adds an IsTemplateForApiObject method to FunctionTemplate
> allowing the embedder to check whether a given API object was
> instantiated by this template without including parent templates
> in the search. It also replaces the v8::ApiObject in the fast API
> with a raw v8::Value pointer to allow use of standard C++ casts.
>
> Bug: chromium:1052746
> Change-Id: I0812ec8b4daaa5f5005aabf10b63e1e84e0b8f03
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2595310
> Commit-Queue: Maya Lekova <mslekova@chromium.org>
> Reviewed-by: Georg Neis <neis@chromium.org>
> Reviewed-by: Camillo Bruni <cbruni@chromium.org>
> Reviewed-by: Sathya Gunasekaran <gsathya@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#73999}
Bug: chromium:1052746
Change-Id: Ic99ec616310f0f75800c3dad393b5d2d685b76ab
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2829988
Auto-Submit: Shu-yu Guo <syg@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@{#74016}
When the enumerability flag is flipped we need to invalidate the
prototype info.
Bug: chromium:1163499
Change-Id: Iceeaa5fc47eebfe7d333c9eb594bf0763e6cef92
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2831871
Commit-Queue: Toon Verwaest <verwaest@chromium.org>
Auto-Submit: Toon Verwaest <verwaest@chromium.org>
Reviewed-by: Igor Sheludko <ishell@chromium.org>
Cr-Commit-Position: refs/heads/master@{#74013}
Operands in Arm can be encoded as (8-bit value, 2*N bit left rotate).
This encoding is checked for with the FitsShifter function.
Previously, this encoding was exhaustively searched for by checking all
16 possible rotations. However, we can simply classify the different
possible rotations as shifting away trailing zeros (without rotation),
or rotating an 8-bit value split over the beginning and end of the
32-bit value (which, after one rotation, becomes the first case).
Hence, we can replace the exhaustive search with a couple of trailing
zeros calculations within these classes.
Change-Id: Id896539c376f695b54bdf31133b2a103b0cf9736
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2831479
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Reviewed-by: Patrick Thier <pthier@chromium.org>
Cr-Commit-Position: refs/heads/master@{#74012}
This is a reland of ae0752df1b
Reland fixes:
* Remove UNREACHABLE() from constexpr switch, since we don't have a
CONSTEXPR_UNREACHABLE() (it's ok, the switch is exhaustive for the
enum anyway).
* Fix IsRegisterArray trait to use public inheritance and size_t for
std::array size.
Original change's description:
> [codegen] Add static interface descriptors
>
> Add a new CRTP StaticCallInterfaceDescriptor class, which provides
> static constexpr getters for a descriptor's registers, parameter counts,
> and so on. Each CallInterfaceDescriptor subclass is changed to extend
> StaticCallInterfaceDescriptor, with StaticCallInterfaceDescriptor itself
> extending CallInterfaceDescriptor to still provide a dynamic lookup
> where needed.
>
> StaticCallInterfaceDescriptor provides a couple of customisation points,
> where it reads its CRTP derived descriptor's static fields and
> functions, with default fallbacks where appropriate. With these
> customisation points, the definition of CallInterfaceDescriptor
> subclasses is simplified to:
>
> a) Providing parameter names (as before)
> b) Providing parameter types (as before)
> c) Optionally setting flags (like kNoContext or kAllowVarArgs) as
> static booleans on the class.
> d) Optionally providing a `registers()` method that returns a
> std::array<Register, N> of registers that may be used for
> parameters (if not provided, this defaults to the implementation
> specific default register set).
>
> Parameter registers (and register count) are automagically set based on
> the number of parameters and number of given registers, with extra magic
> to ignore no_reg registers (to reduce ia32 special casing). The
> CallInterfaceDescriptorData is initialized based on these static
> functions, rather than manual per-descriptor initializers.
>
> This allows us to skip loading descriptors dynamically for CallBuiltin
> in Sparkplug, and instead lets us use a bit of template magic to
> statically set up arguments for the calls. Any other users of statically
> known descriptors will also benefit, thanks to C++ picking the static
> methods over the dynamic methods on the base class when available.
>
> Because we can remove various virtual functions and trigger heavier
> inlining of constantly known values, binary size slightly decreases with
> this change.
>
> Note that torque-generated descriptors are changed to use the same magic,
> rather than having Torque-specific magic, for consistency.
>
> Bug: v8:11420
> Change-Id: Icc5e238b6313a08734feb564204a13226b450c22
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2814518
> Auto-Submit: Leszek Swirski <leszeks@chromium.org>
> Reviewed-by: Nico Hartmann <nicohartmann@chromium.org>
> Reviewed-by: Clemens Backes <clemensb@chromium.org>
> Reviewed-by: Igor Sheludko <ishell@chromium.org>
> Reviewed-by: Jakob Gruber <jgruber@chromium.org>
> Commit-Queue: Clemens Backes <clemensb@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#73996}
TBR=nicohartmann@chromium.org,clemensb@chromium.org,ishell@chromium.org,clemensb@chromium.org
Bug: v8:11420
Change-Id: Icd1f6cdb3c178e74460044b1e9623139929ceba8
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2831872
Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Reviewed-by: Clemens Backes <clemensb@chromium.org>
Reviewed-by: Igor Sheludko <ishell@chromium.org>
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Cr-Commit-Position: refs/heads/master@{#74010}
This change slipped into https://crrev.com/c/2820970 and wasn't
intended. We actually need to rule out __proto__ here explicitly,
otherwise it starts showing up in previews for embedder objects
(i.e. for HTMLAllCollection, etc.).
Bug: chromium:1197019
Change-Id: Iadde73747c157c2b5b013b11a6b8a30cc4394a7e
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2831481
Commit-Queue: Benedikt Meurer <bmeurer@chromium.org>
Auto-Submit: Benedikt Meurer <bmeurer@chromium.org>
Reviewed-by: Philip Pfaffe <pfaffe@chromium.org>
Cr-Commit-Position: refs/heads/master@{#74009}
This is a reland of abe4858b0a
Reason: It was speculatively reverted but it doesn't seem to have been
the culprit.
TBR=neis@chromium.org
Original change's description:
> [compiler] Do MapRef::CanBeDeprecated and ::CanTransition concurrently
>
> CanBeDeprecated looks at the DescriptorArray, and CanTransition at the
> instance_type. Both are safe to read concurrently and we just had to
> enable them with the macro.
>
> Bug: v8:7790
> Change-Id: Iafe6470f2d64a9ed38383cb9e4d00dd6f23d05d7
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2826539
> Reviewed-by: Georg Neis <neis@chromium.org>
> Commit-Queue: Santiago Aboy Solanes <solanes@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#73995}
Bug: v8:7790
Change-Id: I51d29d53b208fe9b6b27adc46561a4e1009e8d6f
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2831488
Reviewed-by: Santiago Aboy Solanes <solanes@chromium.org>
Commit-Queue: Santiago Aboy Solanes <solanes@chromium.org>
Cr-Commit-Position: refs/heads/master@{#74007}
This makes it much easier to read the code, since that code otherwise
looks unreachable.
R=thibaudm@chromium.org
Change-Id: I8720f8e23a6932d83b7ef6a1f26632095ecfeb43
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2826120
Reviewed-by: Thibaud Michaud <thibaudm@chromium.org>
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#74005}
Changes:
- Remove redundant argument from PopControl(), FallThruTo();
- Rename FallThruTo() -> FallThrough();
- Do not Kill() the environment at control end in
graph-builder-interface, as this is not needed.
- Move some things around and remove dead code.
Change-Id: Ia2e2fb5c3a60c32838d42e5916691b38642b30bc
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2830792
Commit-Queue: Manos Koukoutos <manoskouk@chromium.org>
Reviewed-by: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#74004}
The "num_exceptions" field of the control block must be updated before
entering the stack check, because it is used in
"GetCurrentDebugSideTable" to compute the correct indices for the debug
side table.
R=clemensb@chromium.org
Bug: chromium:1199526
Change-Id: I54f1e4244bf84d0a78b47a764fedc83b54758d01
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2831483
Commit-Queue: Thibaud Michaud <thibaudm@chromium.org>
Reviewed-by: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#74003}
This reverts commit abe4858b0a.
Reason for revert: Speculative revert for TSAN issues (https://ci.chromium.org/ui/p/v8/builders/ci/V8%20Linux64%20TSAN%20-%20no-concurrent-marking/3342/overview)
Original change's description:
> [compiler] Do MapRef::CanBeDeprecated and ::CanTransition concurrently
>
> CanBeDeprecated looks at the DescriptorArray, and CanTransition at the
> instance_type. Both are safe to read concurrently and we just had to
> enable them with the macro.
>
> Bug: v8:7790
> Change-Id: Iafe6470f2d64a9ed38383cb9e4d00dd6f23d05d7
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2826539
> Reviewed-by: Georg Neis <neis@chromium.org>
> Commit-Queue: Santiago Aboy Solanes <solanes@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#73995}
Bug: v8:7790
Change-Id: I3a068c7d3b04d6b94af74e172960d5756e84103e
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2831486
Auto-Submit: Leszek Swirski <leszeks@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@{#74001}
This reverts commit ae0752df1b.
Reason for revert: Predictably, constexpr issues on non-clang compilers.
Original change's description:
> [codegen] Add static interface descriptors
>
> Add a new CRTP StaticCallInterfaceDescriptor class, which provides
> static constexpr getters for a descriptor's registers, parameter counts,
> and so on. Each CallInterfaceDescriptor subclass is changed to extend
> StaticCallInterfaceDescriptor, with StaticCallInterfaceDescriptor itself
> extending CallInterfaceDescriptor to still provide a dynamic lookup
> where needed.
>
> StaticCallInterfaceDescriptor provides a couple of customisation points,
> where it reads its CRTP derived descriptor's static fields and
> functions, with default fallbacks where appropriate. With these
> customisation points, the definition of CallInterfaceDescriptor
> subclasses is simplified to:
>
> a) Providing parameter names (as before)
> b) Providing parameter types (as before)
> c) Optionally setting flags (like kNoContext or kAllowVarArgs) as
> static booleans on the class.
> d) Optionally providing a `registers()` method that returns a
> std::array<Register, N> of registers that may be used for
> parameters (if not provided, this defaults to the implementation
> specific default register set).
>
> Parameter registers (and register count) are automagically set based on
> the number of parameters and number of given registers, with extra magic
> to ignore no_reg registers (to reduce ia32 special casing). The
> CallInterfaceDescriptorData is initialized based on these static
> functions, rather than manual per-descriptor initializers.
>
> This allows us to skip loading descriptors dynamically for CallBuiltin
> in Sparkplug, and instead lets us use a bit of template magic to
> statically set up arguments for the calls. Any other users of statically
> known descriptors will also benefit, thanks to C++ picking the static
> methods over the dynamic methods on the base class when available.
>
> Because we can remove various virtual functions and trigger heavier
> inlining of constantly known values, binary size slightly decreases with
> this change.
>
> Note that torque-generated descriptors are changed to use the same magic,
> rather than having Torque-specific magic, for consistency.
>
> Bug: v8:11420
> Change-Id: Icc5e238b6313a08734feb564204a13226b450c22
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2814518
> Auto-Submit: Leszek Swirski <leszeks@chromium.org>
> Reviewed-by: Nico Hartmann <nicohartmann@chromium.org>
> Reviewed-by: Clemens Backes <clemensb@chromium.org>
> Reviewed-by: Igor Sheludko <ishell@chromium.org>
> Reviewed-by: Jakob Gruber <jgruber@chromium.org>
> Commit-Queue: Clemens Backes <clemensb@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#73996}
Bug: v8:11420
Change-Id: Ie5469c9253fc140590ac30b72db6eb1d93f86806
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2831485
Auto-Submit: Leszek Swirski <leszeks@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@{#74000}
This CL adds an IsTemplateForApiObject method to FunctionTemplate
allowing the embedder to check whether a given API object was
instantiated by this template without including parent templates
in the search. It also replaces the v8::ApiObject in the fast API
with a raw v8::Value pointer to allow use of standard C++ casts.
Bug: chromium:1052746
Change-Id: I0812ec8b4daaa5f5005aabf10b63e1e84e0b8f03
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2595310
Commit-Queue: Maya Lekova <mslekova@chromium.org>
Reviewed-by: Georg Neis <neis@chromium.org>
Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Reviewed-by: Sathya Gunasekaran <gsathya@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73999}
Add a new CRTP StaticCallInterfaceDescriptor class, which provides
static constexpr getters for a descriptor's registers, parameter counts,
and so on. Each CallInterfaceDescriptor subclass is changed to extend
StaticCallInterfaceDescriptor, with StaticCallInterfaceDescriptor itself
extending CallInterfaceDescriptor to still provide a dynamic lookup
where needed.
StaticCallInterfaceDescriptor provides a couple of customisation points,
where it reads its CRTP derived descriptor's static fields and
functions, with default fallbacks where appropriate. With these
customisation points, the definition of CallInterfaceDescriptor
subclasses is simplified to:
a) Providing parameter names (as before)
b) Providing parameter types (as before)
c) Optionally setting flags (like kNoContext or kAllowVarArgs) as
static booleans on the class.
d) Optionally providing a `registers()` method that returns a
std::array<Register, N> of registers that may be used for
parameters (if not provided, this defaults to the implementation
specific default register set).
Parameter registers (and register count) are automagically set based on
the number of parameters and number of given registers, with extra magic
to ignore no_reg registers (to reduce ia32 special casing). The
CallInterfaceDescriptorData is initialized based on these static
functions, rather than manual per-descriptor initializers.
This allows us to skip loading descriptors dynamically for CallBuiltin
in Sparkplug, and instead lets us use a bit of template magic to
statically set up arguments for the calls. Any other users of statically
known descriptors will also benefit, thanks to C++ picking the static
methods over the dynamic methods on the base class when available.
Because we can remove various virtual functions and trigger heavier
inlining of constantly known values, binary size slightly decreases with
this change.
Note that torque-generated descriptors are changed to use the same magic,
rather than having Torque-specific magic, for consistency.
Bug: v8:11420
Change-Id: Icc5e238b6313a08734feb564204a13226b450c22
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2814518
Auto-Submit: Leszek Swirski <leszeks@chromium.org>
Reviewed-by: Nico Hartmann <nicohartmann@chromium.org>
Reviewed-by: Clemens Backes <clemensb@chromium.org>
Reviewed-by: Igor Sheludko <ishell@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73996}
CanBeDeprecated looks at the DescriptorArray, and CanTransition at the
instance_type. Both are safe to read concurrently and we just had to
enable them with the macro.
Bug: v8:7790
Change-Id: Iafe6470f2d64a9ed38383cb9e4d00dd6f23d05d7
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2826539
Reviewed-by: Georg Neis <neis@chromium.org>
Commit-Queue: Santiago Aboy Solanes <solanes@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73995}
We do not need to scan main thread handles when starting incremental
marking. This reduces the time to start incremental marking.
Bug: v8:11645
Change-Id: Ib99a13e7875f50fbfe5346ac0e186d8960ea1337
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2826124
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Commit-Queue: Dominik Inführ <dinfuehr@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73994}
Instead, bail out of inline literal creation if a deprecated map is
found. This makes it easier to compile on the background thread.
Bug: v8:7790
Change-Id: I87941938d4f13dcf49230cf246c33bf2f49897f5
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2745134
Commit-Queue: Michael Stanton <mvstanton@chromium.org>
Reviewed-by: Georg Neis <neis@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73988}
- represent smis as fake heap numbers
- numbers nodes (both smi and heap numbers) reference a child node whose
name is "value" and whose entry is the string representation of that
number
That feature is disabled by default, and can be enabled by passing
captureNumericValue: true when calling HeapProfiler.takeHeapSnapshot
This patch slightly refactors some functions that operate on "essential
objects". We now check that the object is essential before trying to
create the entry. Otherwise, we would end up with smi objects created,
but not referenced anywhere.
Design doc:
https://docs.google.com/document/d/1Qh1zxyn0SS5wzJzitD6ecBJTdFbQkJogSMwxDRsn44o/edit
Change-Id: Ibbe6e79a54c4f9eace72bc0a0ccb622a97698e00
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2806747
Reviewed-by: Yang Guo <yangguo@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Commit-Queue: Arnaud Renevier <arenevier@fb.com>
Cr-Commit-Position: refs/heads/master@{#73985}
Port 06a2c2e0c0
Original Commit Message:
We currently allow OSR (On-Stack Replacement) of arbitrarily deep return
addresses. This is in direct violation of Intel CET's shadow stack,
which we plan to enable eventually.
This change works around this by postponing OSR until after we return to
the old code. The main changes are:
- Reserve a slot in Liftoff frames to store the OSR target,
- Skip the return address modification, and instead store the new code
pointer in the dedicated slot,
- Upon returning to the old code, check the slot and do an indirect jump
to the new code if needed.
CET also prevents indirect jumps to arbitrary locations, so the last
point is also a CET violation. Valid indirect jump targets must be
marked with the ENDBRANCH instruction, which I will do in a follow-up
CL.
R=thibaudm@chromium.org, joransiu@ca.ibm.com, junyan@redhat.com, midawson@redhat.com
BUG=
LOG=N
Change-Id: Id972de1ba7556474cb00b377ea3a38eb4332eae3
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2828870
Reviewed-by: Junliang Yan <junyan@redhat.com>
Commit-Queue: Milad Fa <mfarazma@redhat.com>
Cr-Commit-Position: refs/heads/master@{#73984}
The typing of br_table was relaxed in
https://github.com/WebAssembly/spec/pull/1305. Before, we had to compute
the greatest lower bound of all branch types and make sure that stack
values are subtypes of that type. Now, we have to check that the stack
values are subtypes of each individual branch. This makes a difference
only in polymorphic stacks, but greatly simplifies the code, especially
with the upcoming introduction of a much more complex type system in
wasm-gc.
Change-Id: I6e3b410cfe0e71a97623b3030b3575ef707c4900
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2827897
Commit-Queue: Manos Koukoutos <manoskouk@chromium.org>
Reviewed-by: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73982}
This is a reland of 6ec52d9026. The failing
tests have been adapted at the blink side.
Original change's description:
> [wasm] Enable wasm threads by default in V8
>
> Finer grained control of platforms that support threads are
> enforced by chromium.
>
> Bug: chromium:1167733
> Change-Id: Ic34a4950aebf6ba394053b79df97b703af333636
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2810190
> Reviewed-by: Lutz Vahl <vahl@chromium.org>
> Reviewed-by: Clemens Backes <clemensb@chromium.org>
> Commit-Queue: Deepti Gandluri <gdeepti@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#73919}
Bug: chromium:1167733
Cq-Include-Trybots: luci.v8.try:v8_linux_blink_rel
Change-Id: I56a00a24f17fef8a8050ee6f4b28fc13c7d3fb30
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2826540
Reviewed-by: Lutz Vahl <vahl@chromium.org>
Reviewed-by: Deepti Gandluri <gdeepti@chromium.org>
Commit-Queue: Clemens Backes <clemensb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#73981}
