All stubs have been migrated to builtins. This CL removes most related
code.
Bug: v8:7777, v8:5784
Change-Id: I4470cfef34788e6c8e0fd5fd09e40e250d088dad
Reviewed-on: https://chromium-review.googlesource.com/c/1365284
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Cr-Commit-Position: refs/heads/master@{#58093}
This migrates the JSEntryStub to three dedicated builtins:
JSEntry
JSConstructEntry
JSRunMicrotasksEntry
Drive-by: Tweaks to make the code isolate-independent (e.g. using the
correct macro assembler method to load and store external references
through the kRootRegister).
Drive-by: The context slot on x64/ia32 must be set up after
kRootRegister is initialized, so we first reserve the slot and later
load its value.
Drive-by: Update all remaining comments referencing JSEntryStub.
Bug: v8:7777
Change-Id: Ie3ba17ffb3bde6f18ec1d26d778b258719b2d4ef
Reviewed-on: https://chromium-review.googlesource.com/c/1365275
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#58088}
Drive-by: Replace uses in CallApi* with a direct call now that they've
been converted to builtins themselves and are thus immovable.
Bug: v8:7777
Change-Id: I660b5788bdac4f5e45cc5c5677b86be17474cd83
Reviewed-on: https://chromium-review.googlesource.com/c/1361161
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Cr-Commit-Position: refs/heads/master@{#58037}
This reverts commit ed3d647284.
Reason for revert:
https://ci.chromium.org/p/v8/builders/luci.v8.ci/V8%20Linux%20-%20noi18n%20-%20debug/24178
Original change's description:
> Reland "[code-comments] Put code comments into the code object"
>
> This is a reland of e774cffe2b
>
> This reland disables a test as v8:8548 is blocking it, which was
> broken by a recent CL. CQ did not catch this because the merge-base
> CQ used did not yet contain the CL that caused v8:8548.
>
> Original change's description:
> > [code-comments] Put code comments into the code object
> >
> > Code comments in the snapshot can now be enabled with gn
> > arg 'v8_enable_snapshot_code_comments'
> >
> > Bug: v8:7989
> > Change-Id: I8bd00cafa63132d00d849394c311ba15e6b6daf3
> > Reviewed-on: https://chromium-review.googlesource.com/c/1329173
> > Commit-Queue: Sigurd Schneider <sigurds@chromium.org>
> > Reviewed-by: Jakob Gruber <jgruber@chromium.org>
> > Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
> > Reviewed-by: Michael Stanton <mvstanton@chromium.org>
> > Cr-Commit-Position: refs/heads/master@{#58020}
>
> TBR=mvstanton@chromium.org,mstarzinger@chromium.org,jgruber@chromium.org,tebbi@chromium.org
>
> Bug: v8:7989, v8:8548
> Change-Id: I464fc897205fefdf2dfc2eadc54d699c4e08a0e9
> Reviewed-on: https://chromium-review.googlesource.com/c/1361166
> Reviewed-by: Sigurd Schneider <sigurds@chromium.org>
> Commit-Queue: Sigurd Schneider <sigurds@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#58028}
TBR=mvstanton@chromium.org,mstarzinger@chromium.org,sigurds@chromium.org,jgruber@chromium.org
Change-Id: I1075bb09de7cb8dad71e31ff51a4e7bb6a200a8b
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: v8:7989, v8:8548
Reviewed-on: https://chromium-review.googlesource.com/c/1362043
Reviewed-by: Sigurd Schneider <sigurds@chromium.org>
Commit-Queue: Sigurd Schneider <sigurds@chromium.org>
Cr-Commit-Position: refs/heads/master@{#58029}
This is a reland of e774cffe2b
This reland disables a test as v8:8548 is blocking it, which was
broken by a recent CL. CQ did not catch this because the merge-base
CQ used did not yet contain the CL that caused v8:8548.
Original change's description:
> [code-comments] Put code comments into the code object
>
> Code comments in the snapshot can now be enabled with gn
> arg 'v8_enable_snapshot_code_comments'
>
> Bug: v8:7989
> Change-Id: I8bd00cafa63132d00d849394c311ba15e6b6daf3
> Reviewed-on: https://chromium-review.googlesource.com/c/1329173
> Commit-Queue: Sigurd Schneider <sigurds@chromium.org>
> Reviewed-by: Jakob Gruber <jgruber@chromium.org>
> Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
> Reviewed-by: Michael Stanton <mvstanton@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#58020}
TBR=mvstanton@chromium.org,mstarzinger@chromium.org,jgruber@chromium.org,tebbi@chromium.org
Bug: v8:7989, v8:8548
Change-Id: I464fc897205fefdf2dfc2eadc54d699c4e08a0e9
Reviewed-on: https://chromium-review.googlesource.com/c/1361166
Reviewed-by: Sigurd Schneider <sigurds@chromium.org>
Commit-Queue: Sigurd Schneider <sigurds@chromium.org>
Cr-Commit-Position: refs/heads/master@{#58028}
Code comments in the snapshot can now be enabled with gn
arg 'v8_enable_snapshot_code_comments'
Bug: v8:7989
Change-Id: I8bd00cafa63132d00d849394c311ba15e6b6daf3
Reviewed-on: https://chromium-review.googlesource.com/c/1329173
Commit-Queue: Sigurd Schneider <sigurds@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Michael Stanton <mvstanton@chromium.org>
Cr-Commit-Position: refs/heads/master@{#58020}
For this to work, I had to move PropertyCell out of objects.h too, since
otherwise there would be an inl include cycle which makes the code not compile.
BUG=v8:5402,v8:8238
Change-Id: I3233f86b68c1e2fd32d135fcf0bbba8101af8cb2
Reviewed-on: https://chromium-review.googlesource.com/c/1356510
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Commit-Queue: Marja Hölttä <marja@chromium.org>
Cr-Commit-Position: refs/heads/master@{#58004}
This CL moves a number of memory-related methods out of utils into its
own header, since utils.h is included in many places that do not need
these methods.
R=clemensh@chromium.org,mstarzinger@chromium.org
Change-Id: I5155baf329844784286413408c05c7108b789020
Reviewed-on: https://chromium-review.googlesource.com/c/1354889
Commit-Queue: Ben Titzer <titzer@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Reviewed-by: Marja Hölttä <marja@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57948}
This adds a new target :generated_cc_files which generates all
generated .cc files and is quick to build (~5sec on my machine).
TBR=yangguo@chromium.org
Change-Id: I51485635671b55302b06f1ea300e86ef1745931e
Bug: v8:8526
Reviewed-on: https://chromium-review.googlesource.com/c/1354881
Commit-Queue: Sigurd Schneider <sigurds@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57941}
This is a reland of a5336471f2
Original change's description:
> [builtins] Implement Object.fromEntries
>
> Adds the Object.fromEntries() method behind
> --harmony-object-from-entries.
>
> > Includes an initial implementation of the new experimental builtin
> Object.fromEntries implemented by Daniel Clifford, and
> has been modified by Caitlin Potter to support a fast case to skip
> the iterator protocol when it can be done unobservably in common cases.
>
> There are some incidental changes: A number of CSA macros have been
> updated to use TNodes, and some Context arguments have been
> re-arranged to be implicit in Torque. >
>
> There are also a number of mjsunit tests written mirroring and
> expanding on the test262 tests.
>
> BUG=v8:8021
>
> Change-Id: I1c12bee8a2f98c6297b77d5d723910a5e3b630cc
> Co-authored-by: Daniel Clifford <danno@chromium.org>
> Co-authored-by: Caitlin Potter <caitp@igalia.com>
> Reviewed-on: https://chromium-review.googlesource.com/c/1337585
> Commit-Queue: Daniel Clifford <danno@chromium.org>
> Reviewed-by: Daniel Clifford <danno@chromium.org>
> Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#57667}
Bug: v8:8021
Change-Id: I706e2d87bfc2f688e833c1b7d40ca82f5d80f5a2
Reviewed-on: https://chromium-review.googlesource.com/c/1346630
Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
Commit-Queue: Caitlin Potter <caitp@igalia.com>
Cr-Commit-Position: refs/heads/master@{#57798}
This API allows the embedder to provide a stack and PC, FP and
SP registers. V8 will then attempt to unwind the stack to the C++ frame
that called into JS. This API is signal-safe, meaning it does not call
any signal-unsafe OS functions or read/write any V8 state.
Bug: v8:8116
Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng
Change-Id: I7e3e73753b711737020b6a5f11946096658afa6f
Reviewed-on: https://chromium-review.googlesource.com/c/1186724
Commit-Queue: Peter Marshall <petermarshall@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57749}
We recently changed embedded builtins to be emitted as raw assembly
files during the build process in order to support MSVC (which doesn't
support inline assembly on x64). Ninja uses ml.exe / ml64.exe as the
assembler on all Windows builds (msvc & clang); these unfortunately
don't support large data streams well and can take over 5 minutes for
embedded.S.
With this CL we work around this by going back to inlined assembly for
clang Windows builds.
Bug: v8:6666, v8:8475
Change-Id: I33beb3f5a1df07de3299df0fc2be4e8983701db0
Reviewed-on: https://chromium-review.googlesource.com/c/1344114
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Sergiy Belozorov <sergiyb@chromium.org>
Reviewed-by: Michael Stanton <mvstanton@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57726}
With the last remaining TF code stubs gone, c-s-a.{h,cc} is no longer
needed in the final binary.
Bug: v8:7777
Change-Id: I8573199401678758698df56e0cb680f125f06bdc
Reviewed-on: https://chromium-review.googlesource.com/c/1346329
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57721}
an abstraction that hides the details about how embedder data fields are
encoded in EmbedderDataArrays and JSObjects.
Bug: v8:7703
Change-Id: Ic9f6d9511bec557c6671aa6488b9545e353f968c
Reviewed-on: https://chromium-review.googlesource.com/c/1344155
Commit-Queue: Igor Sheludko <ishell@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57679}
This reverts commit a5336471f2.
Reason for revert: Fails nosnap debug tests: https://ci.chromium.org/p/v8/builders/luci.v8.ci/V8%20Linux%20-%20nosnap%20-%20debug/21838
Original change's description:
> [builtins] Implement Object.fromEntries
>
> Adds the Object.fromEntries() method behind
> --harmony-object-from-entries.
>
> > Includes an initial implementation of the new experimental builtin
> Object.fromEntries implemented by Daniel Clifford, and
> has been modified by Caitlin Potter to support a fast case to skip
> the iterator protocol when it can be done unobservably in common cases.
>
> There are some incidental changes: A number of CSA macros have been
> updated to use TNodes, and some Context arguments have been
> re-arranged to be implicit in Torque. >
>
> There are also a number of mjsunit tests written mirroring and
> expanding on the test262 tests.
>
> BUG=v8:8021
>
> Change-Id: I1c12bee8a2f98c6297b77d5d723910a5e3b630cc
> Co-authored-by: Daniel Clifford <danno@chromium.org>
> Co-authored-by: Caitlin Potter <caitp@igalia.com>
> Reviewed-on: https://chromium-review.googlesource.com/c/1337585
> Commit-Queue: Daniel Clifford <danno@chromium.org>
> Reviewed-by: Daniel Clifford <danno@chromium.org>
> Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#57667}
TBR=danno@chromium.org,caitp@igalia.com,tebbi@chromium.org
Change-Id: Id0cd8b16131f151a42dffbaca7e59ab17c68ab23
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: v8:8021
Reviewed-on: https://chromium-review.googlesource.com/c/1346116
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57677}
This extracts the parts of the TypedSlotSet that are used only
sequentially into a separate class called TypedSlots.
The new class will be used in the concurrent marker to keep track of
typed slots locally and then to merge them to the main remembered set
during finalization of marking.
The patch also cleans up atomics in the Iterate and ClearInvalidSlots
methods that can run concurrently to each other.
Bug:v8:8459
Change-Id: Id7a63041f7b99218381e5e9e1999210cab9c4369
Reviewed-on: https://chromium-review.googlesource.com/c/1340247
Commit-Queue: Ulan Degenbaev <ulan@chromium.org>
Reviewed-by: Hannes Payer <hpayer@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57673}
Adds the Object.fromEntries() method behind
--harmony-object-from-entries.
Includes an initial implementation of the new experimental builtin
Object.fromEntries implemented by Daniel Clifford, and
has been modified by Caitlin Potter to support a fast case to skip
the iterator protocol when it can be done unobservably in common cases.
There are some incidental changes: A number of CSA macros have been
updated to use TNodes, and some Context arguments have been
re-arranged to be implicit in Torque.
There are also a number of mjsunit tests written mirroring and
expanding on the test262 tests.
BUG=v8:8021
Change-Id: I1c12bee8a2f98c6297b77d5d723910a5e3b630cc
Co-authored-by: Daniel Clifford <danno@chromium.org>
Co-authored-by: Caitlin Potter <caitp@igalia.com>
Reviewed-on: https://chromium-review.googlesource.com/c/1337585
Commit-Queue: Daniel Clifford <danno@chromium.org>
Reviewed-by: Daniel Clifford <danno@chromium.org>
Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57667}
Emitting unwinding info for builtins for perf to consume doesn't make sense with
embedded builtins so let's just remove the option.
The perf support is meant for code on the heap and the builtins are not there
anymore. If we want perf to be able to unwind through builtins we should emit
the unwinding DWARF information directly into the binary, using the dedicated
.eh_frame ELF section. This would also mean GDB would be able to unwind through
builtins as well which would be great.
Change-Id: I751cc5eb1e6f7c0eeae6b37a42986ae8ea47d6a0
Reviewed-on: https://chromium-review.googlesource.com/c/1340294
Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Michael Stanton <mvstanton@chromium.org>
Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
Commit-Queue: Pierre Langlois <pierre.langlois@arm.com>
Cr-Commit-Position: refs/heads/master@{#57641}
for storing embedder data in native context. We can't use FixedArray because
with enabled pointer compression it would not be possible to fit raw aligned
pointer into 32-bits of a tagged value so we will need to store both tagged
and raw data in this array and therefore custom visitor is required.
Bug: v8:7703
Change-Id: Iae23d9aa76c79a572d5f0f1f3c0f924e8e407dd0
Reviewed-on: https://chromium-review.googlesource.com/c/1340295
Commit-Queue: Igor Sheludko <ishell@chromium.org>
Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57639}
In the chrome-side implementation I currently use the default
trap handlers of V8, see https://crrev.com/c/1290955
Bug: chromium:906565
Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng
Change-Id: I74c5a18c479ad1c69303d104ad4f040de436c4e7
Reviewed-on: https://chromium-review.googlesource.com/c/1282960
Commit-Queue: Andreas Haas <ahaas@chromium.org>
Reviewed-by: Ben Titzer <titzer@chromium.org>
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57636}
This pulls both classes into a dedicated file. InstructionStream may
be removed in a follow-up.
Tbr: mlippautz@chromium.org
Bug: v8:6666
Change-Id: Ibd374eba25cebf7495390ec13f6b4aeac5e1dc01
Reviewed-on: https://chromium-review.googlesource.com/c/1337738
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57562}
This is a reland of 0b13f0f517
Original change's description:
> [snapshot] Emit the embedded blob as assembly instead of inline assembly
>
> The motivation behind this is that MSVC doesn't support inline assembly
> on x64. Emitting the embedded blob as a plain assembly file will give us
> MSVC support (and possibly faster compilation times as a side-effect).
>
> Bug: v8:6666,v8:8349
> Change-Id: I2e6cf072faa9ef406fe721a05b63912c655546c2
> Reviewed-on: https://chromium-review.googlesource.com/c/1329205
> Commit-Queue: Jakob Gruber <jgruber@chromium.org>
> Reviewed-by: Michael Stanton <mvstanton@chromium.org>
> Reviewed-by: Yang Guo <yangguo@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#57524}
Tbr: yangguo@chromium.org,mvstanton@chromium.org
Bug: v8:6666, v8:8349
Change-Id: Ib35696b60a9cd01bc2edf459c8e8d84716e3438d
Reviewed-on: https://chromium-review.googlesource.com/c/1337733
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57546}
Now that we always cache lookups through scope-info-backed scopes on the
entry-point scope-info-backed scope, we don't need additional caching
per scope-info. The one missing piece was negative lookups, but they
automatically turn into DynamicGlobals which we also cache on the entry
scope.
The one possible difference is that we don't cache across compilation,
but seems unlikely to be very beneficial. We'll keep an eye out for
regressions though.
Change-Id: I23186d2b085d2042fafa32fb3cca88f88c61074c
Reviewed-on: https://chromium-review.googlesource.com/c/1337731
Commit-Queue: Toon Verwaest <verwaest@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57544}
This is a reland of bf2f0a0227
Original change's description:
> [builtins] Support embedded builtins in nosnapshot builds
>
> This CL adds support for embedded builtins in nosnap builds by creating
> and setting an 'embedded blob' after builtin generation. Unlike
> snapshot builds, the blob is not embedded into the .text section but
> located on the C++ heap.
>
> This makes nosnap builds more consistent with mksnapshot, and allows us
> to simplify there and in serializer cctests.
>
> Complications arise from the different workflows we need to support:
>
> 1. the standard mksnapshot build process,
> 2. nosnap builds (which reuse the blob created by the first Isolate),
> 2. and tests with various complicated serialization workflows.
>
> To cover all of these cases, this CL introduces two knobs to twiddle:
>
> 1. A 'sticky' embedded blob which overrides compiled-in default
> embedded blobs at Isolate setup.
> 2. The blob lifecycle can be managed manually or through refcounting.
>
> These are described in more detail in isolate.cc.
>
> Tbr: ulan@chromium.org
> Bug: v8:6666, v8:8350
> Change-Id: I3842e40cdaf45d2cadd05c6eb1ec2f5e3d83568d
> Reviewed-on: https://chromium-review.googlesource.com/c/1310195
> Reviewed-by: Jakob Gruber <jgruber@chromium.org>
> Reviewed-by: Yang Guo <yangguo@chromium.org>
> Commit-Queue: Jakob Gruber <jgruber@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#57523}
Tbr: ulan@chromium.org,yangguo@chromium.org
Bug: v8:6666, v8:8350
Change-Id: I13b523c9e7406b39a3cd28465c06f17f1744a738
Reviewed-on: https://chromium-review.googlesource.com/c/1337578
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57540}
This adds flags for the upcoming JIT-less V8.
Build-time: v8_enable_jitless_mode in gn.args
Runtime: --jitless command-line flag
The build-time flag is expected to be removed as the implementation
matures.
Bug: v8:7777
Change-Id: Ieea404a14c7859a66e18175d1740d73182db9b1b
Reviewed-on: https://chromium-review.googlesource.com/c/1335559
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Reviewed-by: Peter Marshall <petermarshall@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57533}
This reverts commit bf2f0a0227.
Reason for revert: https://ci.chromium.org/p/v8/builders/luci.v8.ci/V8%20Linux%20-%20nosnap%20-%20debug/21753
Original change's description:
> [builtins] Support embedded builtins in nosnapshot builds
>
> This CL adds support for embedded builtins in nosnap builds by creating
> and setting an 'embedded blob' after builtin generation. Unlike
> snapshot builds, the blob is not embedded into the .text section but
> located on the C++ heap.
>
> This makes nosnap builds more consistent with mksnapshot, and allows us
> to simplify there and in serializer cctests.
>
> Complications arise from the different workflows we need to support:
>
> 1. the standard mksnapshot build process,
> 2. nosnap builds (which reuse the blob created by the first Isolate),
> 2. and tests with various complicated serialization workflows.
>
> To cover all of these cases, this CL introduces two knobs to twiddle:
>
> 1. A 'sticky' embedded blob which overrides compiled-in default
> embedded blobs at Isolate setup.
> 2. The blob lifecycle can be managed manually or through refcounting.
>
> These are described in more detail in isolate.cc.
>
> Tbr: ulan@chromium.org
> Bug: v8:6666, v8:8350
> Change-Id: I3842e40cdaf45d2cadd05c6eb1ec2f5e3d83568d
> Reviewed-on: https://chromium-review.googlesource.com/c/1310195
> Reviewed-by: Jakob Gruber <jgruber@chromium.org>
> Reviewed-by: Yang Guo <yangguo@chromium.org>
> Commit-Queue: Jakob Gruber <jgruber@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#57523}
TBR=ulan@chromium.org,yangguo@chromium.org,jgruber@chromium.org
Change-Id: I6e35a0cb7186fb50f1012f5c618fb8b48b24a813
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: v8:6666, v8:8350
Reviewed-on: https://chromium-review.googlesource.com/c/1337577
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57529}
This reverts commit 0b13f0f517.
Reason for revert: https://ci.chromium.org/p/v8/builders/luci.v8.ci/V8%20Win32%20-%20debug/17373
Original change's description:
> [snapshot] Emit the embedded blob as assembly instead of inline assembly
>
> The motivation behind this is that MSVC doesn't support inline assembly
> on x64. Emitting the embedded blob as a plain assembly file will give us
> MSVC support (and possibly faster compilation times as a side-effect).
>
> Bug: v8:6666,v8:8349
> Change-Id: I2e6cf072faa9ef406fe721a05b63912c655546c2
> Reviewed-on: https://chromium-review.googlesource.com/c/1329205
> Commit-Queue: Jakob Gruber <jgruber@chromium.org>
> Reviewed-by: Michael Stanton <mvstanton@chromium.org>
> Reviewed-by: Yang Guo <yangguo@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#57524}
TBR=yangguo@chromium.org,mvstanton@chromium.org,jgruber@chromium.org
Change-Id: I35f7763f86b4de01e74827a95706b969b43af55e
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: v8:6666, v8:8349
Reviewed-on: https://chromium-review.googlesource.com/c/1337574
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57528}
The motivation behind this is that MSVC doesn't support inline assembly
on x64. Emitting the embedded blob as a plain assembly file will give us
MSVC support (and possibly faster compilation times as a side-effect).
Bug: v8:6666,v8:8349
Change-Id: I2e6cf072faa9ef406fe721a05b63912c655546c2
Reviewed-on: https://chromium-review.googlesource.com/c/1329205
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Michael Stanton <mvstanton@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57524}
This CL adds support for embedded builtins in nosnap builds by creating
and setting an 'embedded blob' after builtin generation. Unlike
snapshot builds, the blob is not embedded into the .text section but
located on the C++ heap.
This makes nosnap builds more consistent with mksnapshot, and allows us
to simplify there and in serializer cctests.
Complications arise from the different workflows we need to support:
1. the standard mksnapshot build process,
2. nosnap builds (which reuse the blob created by the first Isolate),
2. and tests with various complicated serialization workflows.
To cover all of these cases, this CL introduces two knobs to twiddle:
1. A 'sticky' embedded blob which overrides compiled-in default
embedded blobs at Isolate setup.
2. The blob lifecycle can be managed manually or through refcounting.
These are described in more detail in isolate.cc.
Tbr: ulan@chromium.org
Bug: v8:6666, v8:8350
Change-Id: I3842e40cdaf45d2cadd05c6eb1ec2f5e3d83568d
Reviewed-on: https://chromium-review.googlesource.com/c/1310195
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57523}
The functions are sufficiently different and AnalyzePartially is
performance-sensitive so it's helpful to see what exact code is in there.
Change-Id: I8807684e58a7af48bdba62f0adf41e78f7b6557d
Reviewed-on: https://chromium-review.googlesource.com/c/1335701
Reviewed-by: Igor Sheludko <ishell@chromium.org>
Commit-Queue: Toon Verwaest <verwaest@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57514}
Moves the unicode predicate cache tables out of the unicode cache,
and turns them into generic predicates in char-predicates.h which
use static constexpr tables.
This drops the per-isolate cost of unicode caches, and removes the
need for accessing the unicode cache from most files. It does remove
the mutability of the cache, which means that there may be regressions
when parsing non-ASCII identifiers. Most likely the benefits to ASCII
identifiers/keywords will outweigh any non-ASCII costs.
Change-Id: I9a7a8b7c9b22d3e9ede824ab4e27f133ce20a399
Reviewed-on: https://chromium-review.googlesource.com/c/1335564
Reviewed-by: Yang Guo <yangguo@chromium.org>
Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57506}
In the process, move the rest of the implementation PLabels into the
CodeAssembler for consistency.
Change-Id: I56872d9fc756db066f0d13d87aeb55ec04de2495
Reviewed-on: https://chromium-review.googlesource.com/c/1329687
Commit-Queue: Daniel Clifford <danno@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57474}
This CL updates DetachableVector to store the data at a known place
instead of in an std::vector<>, so that builtins can update it directly.
Bug: v8:8124
Change-Id: Iba5fb2e9d4e0ddc689d0f7eeaea40bc3218edf3a
Reviewed-on: https://chromium-review.googlesource.com/c/1297783
Commit-Queue: Taiju Tsuiki <tzik@chromium.org>
Reviewed-by: Peter Marshall <petermarshall@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57452}
This CL splits the backend of TurboFan off into its own directory,
without changing namespaces. This makes ownership management a bit
more fine-grained with a logical separation.
R=mstarzinger@chromium.org,jarin@chromium.org,adamk@chromium.org
Change-Id: I2ac40d6ca2c4f04b8474b630aae0286ecf79ef42
Reviewed-on: https://chromium-review.googlesource.com/c/1308333
Commit-Queue: Ben Titzer <titzer@chromium.org>
Reviewed-by: Adam Klein <adamk@chromium.org>
Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57437}
This is needed so that cctest is built for the Memory perf benchmark. Marking
v8_achive as testonly is necessary to be able to depend on the cctest, which is
testonly already.
R=machenbach@chromium.org
Bug: chromium:903562
Change-Id: If5baf3e75226282110999dfa2bd83d475b63258c
Reviewed-on: https://chromium-review.googlesource.com/c/1330912
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Sergiy Byelozyorov <sergiyb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57416}
This CL moves EnqueueMicrotask and RunMicrotasks builtins out of
InternalBuiltinAssembler to a separate class with no logic change.
This is a trivial part of the following "Implement Faster MicrotaskQueue Step 2"
https://crrev.com/c/1290751 in order to clean up the diff for easier review,
and also for unblocking other CLs.
Change-Id: I34dda8e599ffbf4db4bae07d3fd8ea3d6fadeb6b
Reviewed-on: https://chromium-review.googlesource.com/c/1328548
Reviewed-by: Adam Klein <adamk@chromium.org>
Commit-Queue: Taiju Tsuiki <tzik@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57411}
This extracts the lambda tasks to an own compilation unit and header
file. Additionally, it addresses the TODO to avoid templates and just
store the function to execute in an std::function.
Third, it provides the same functionality for pure (non-cancellable
non-idle) tasks.
Last, it removes the "Lambda" part from the methods, because we can
actually instantiate it with anything that is invocable (function
pointer, lambda, functor, ...).
R=ahaas@chromium.org
Bug: v8:8238
Change-Id: I2f613f5b15ee208f215bbf74bd6d1d41889fd637
Reviewed-on: https://chromium-review.googlesource.com/c/1328923
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57397}
There's only one allocator kind left post-builtin-snapshot-removal,
so the 'Default' prefix can be removed.
Bug: v8:6666, v8:7990
Change-Id: Ib3c3eeb121792708591ca7be1e30adef77d3c111
Reviewed-on: https://chromium-review.googlesource.com/c/1309638
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57236}
- Name lookup in module scopes has namespace semantics now: All
overloads from all parent modules are combined before overload
resolution.
- Allow overloads of different callables: runtime-functions,
macros, builtins, and generics.
- The duplication between the DeclarationVisitor and the
ImplementationVisitor is removed: The DeclarationVisitor creates
declarables for everything except for implicit generic specializations.
The ImplementationVisitor iterates over declarables.
The DeclarationVisitor only looks at the header of declarations, not
at the body.
- Modules become Declarable's, which will enable them to be nested.
- Modules replace the existing Scope chain mechanism, which will make it
easier to inline macros.
- The DeclarationVisitor and Declarations become stateless. All state is
moved to contextual variables and the GlobalContext.
- Implicit specializations are created directly from the
ImplementationVisitor. This will enable template parameter inference.
- As a consequence, the list of all builtins is only available after the
ImplementationVisitor has run. Thus GenerateBuiltinDefinitions has to
move to the ImplementationVisitor. Also, this makes it necessary to
resolve the link from function pointer types to example builtins only
at this point.
Bug: v8:7793
Change-Id: I61cef2fd3e954ab148c252974344a6e38ee2d01d
Reviewed-on: https://chromium-review.googlesource.com/c/1304294
Commit-Queue: Tobias Tebbi <tebbi@chromium.org>
Reviewed-by: Daniel Clifford <danno@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57231}
The previous AtomicElement wrapper fundamentally relied on
reinterpret_casting a heap address to an instance of a C++
object, which is an invalid cast. This patch replaces that
pattern with an ObjectSlot-based alternative that does not
rely on UB.
Bug: v8:3770
Change-Id: I62fb3c7589ac59e9e18139b525174de77e0e2149
Reviewed-on: https://chromium-review.googlesource.com/c/1309297
Commit-Queue: Jakob Kummerow <jkummerow@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57197}
This is preparation to support the Torque port of Object.fromEntries,
including tests to make sure that the interface of the iterator functions
is correct and compiles when used.
Change-Id: I2a30ef80a80f42d4744a92746c8cd383abc10c19
Reviewed-on: https://chromium-review.googlesource.com/c/1303726
Commit-Queue: Daniel Clifford <danno@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57192}
- introduced ValueMirror interface, this interface contains methods to generate
different protocol entities,
- introduced DebugPropertyIterator, this iterator iterates through object properties
in the following order: exotic indices, enumerable strings, all other properties,
- removed all injected script infra, e.g. closure compiler,
R=dgozman@chromium.orgTBR=yangguo@chromium.org
Bug: chromium:595206
Change-Id: I030fdb3a80074ca6edd4749f86b39b590776ae6f
Reviewed-on: https://chromium-review.googlesource.com/c/1310056
Reviewed-by: Aleksey Kozyatinskiy <kozyatinskiy@chromium.org>
Commit-Queue: Aleksey Kozyatinskiy <kozyatinskiy@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57181}
Now that lazy deserialization has been removed, we can roll back all
the mechanisms we introduced to support lazy single-builtin
deserialization.
This CL moves serialized builtin code objects (i.e.
off-heap-trampolines in most cases) back into the startup snapshot.
Support classes for builtin serialization and deserialization, as well
as the builtins snapshot itself are removed. Templatization on the
allocator class is removed as well.
Tbr: delphick@chromium.org
Bug: v8:6666, v8:7990
Change-Id: I2a910f8d3278b7e27b5f18ad408361ebd18871cc
Reviewed-on: https://chromium-review.googlesource.com/c/1304539
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57160}
- introduced ValueMirror interface, this interface contains methods to generate
different protocol entities,
- introduced DebugPropertyIterator, this iterator iterates through object properties
in the following order: exotic indices, enumerable strings, all other properties,
- removed all injected script infra, e.g. closure compiler,
R=dgozman@chromium.orgTBR=yangguo@chromium.org
Bug: chromium:595206
Change-Id: Idcfc04489ee52e015ad1d1d191c3474cc65e63f2
Reviewed-on: https://chromium-review.googlesource.com/c/1308353
Reviewed-by: Aleksey Kozyatinskiy <kozyatinskiy@chromium.org>
Commit-Queue: Aleksey Kozyatinskiy <kozyatinskiy@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57150}
to control how the memory for Isolate object is allocated.
This is the support for pointer-compression friendly heap layout.
Bug: v8:8182
Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng
Change-Id: Ida36b81ee22bd865005c394748b62d4c0897d746
Reviewed-on: https://chromium-review.googlesource.com/c/1251548
Commit-Queue: Igor Sheludko <ishell@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57131}
This is the V8 side of the implementation. You can take a look at a
prototype of the Chrome side changes in https://crrev.com/c/1273043.
Chrome could also use V8's default implementation of the trap handler,
see https://crrev.com/c/1290952.
Bug: v8:6743
Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng
Change-Id: I9bb3e717db17a4f30bbb8acfd80a1f6510d463ff
Reviewed-on: https://chromium-review.googlesource.com/c/1283111
Commit-Queue: Andreas Haas <ahaas@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57117}
- Store dirty JSWeakFactories in a heap root (not native context) -
during GC there's no native context necessarily.
- Schedule one microtask per JSWeakFactory.
- Enter the context of the cleanup function before calling it.
BUG=v8:8179
Change-Id: Icaa245a08a60dd7325af828858ebe55d842c5bf6
Reviewed-on: https://chromium-review.googlesource.com/c/1298899
Commit-Queue: Marja Hölttä <marja@chromium.org>
Reviewed-by: Sathya Gunasekaran <gsathya@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57081}
allocation-builder.h was using methods defined in map-inl.h, which is
not allowed. Thus move the respective methods to
allocation-builder-inl.h.
R=mstarzinger@chromium.org
Bug: v8:7965
Change-Id: Idd040f624d7e9491bc3d4bbd1e6ab3e8cf051917
Reviewed-on: https://chromium-review.googlesource.com/c/1303297
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57069}
and make it Isolate-independent.
Bug: v8:8238
Change-Id: I23faae87c302d24877ef001873f673d4a1cdd327
Reviewed-on: https://chromium-review.googlesource.com/c/1301484
Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Commit-Queue: Igor Sheludko <ishell@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57066}
This CL refactors the existing trap handler code for Linux to allow a
cleaner extension to Windows.
1) The CL extracts platform-specific code into separate files, see
https://docs.google.com/document/d/1HCgKIpdjy_CEodTLvZ5VuykDI6gGTHrTtau2j0zwm28.
Specifically this means:
* Move posix-specific API functions from v8.h to v8-wasm-trap-handler-posix.h.
Deprecate the existing TryHandleSignal API function.
* Move posix-specific function declarations from trap-handler-internal.h to
handler-inside-posix.h
* Move posix-specific function definitions from handler-shared.cc to
handler-outside-posix.cc
2) The CL changes filenames from *-linux.* to *-posix.*. I expect that
most of the implementation for MacOS will be the same as for Linux.
Bug: v8:6743
Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng
Change-Id: I4bb7f199564a2f01042084d15a82311d11a93c7b
Reviewed-on: https://chromium-review.googlesource.com/c/1280324
Commit-Queue: Andreas Haas <ahaas@chromium.org>
Reviewed-by: Ben Titzer <titzer@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57028}
In a DCHECK inside SetPayload(), MSVC gives a C4806 warning. Use the
right types to avoid this.
Also add pointer-with-payload.h to BUILD.gn.
Change-Id: I10a415250e7d2f06dab7a10bff48eef5890bb723
Reviewed-on: https://chromium-review.googlesource.com/c/1297991
Commit-Queue: Lei Zhang <thestig@chromium.org>
Reviewed-by: Igor Sheludko <ishell@chromium.org>
Reviewed-by: Marja Hölttä <marja@chromium.org>
Cr-Commit-Position: refs/heads/master@{#57003}
This CL gives a first look at the new way to represent tagged object
pointers in C++.
It adds infrastructure in Handles and the garbage collector to deal
with the new object type, and ports a first class to the new world.
Design overview: https://goo.gl/Ph4CGz
Bug: v8:3770
Change-Id: I3e37fbf399612f95540cb386710a595069fb9d55
Reviewed-on: https://chromium-review.googlesource.com/c/1292673
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Commit-Queue: Jakob Kummerow <jkummerow@chromium.org>
Cr-Commit-Position: refs/heads/master@{#56964}
GN should understand action outputs, so the header generated by the
run_torque action do not need to be separately listed in another
source_set.
Change-Id: I309e8c012eb0a0597a247806d36658c1d6e5d97b
Reviewed-on: https://chromium-review.googlesource.com/c/1297680
Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
Commit-Queue: Lei Zhang <thestig@chromium.org>
Cr-Commit-Position: refs/heads/master@{#56953}
as part of the continuing quest to get rid of Object*/Object**.
This is a fairly mechanical replacement of Object**/MaybeObject** with
wrapper objects carrying the same data. No change in behavior is intended.
Overloaded operators are provided to minimize code churn.
Bug: v8:3770
Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng
Change-Id: I76cee82b8bf2dd80a1b66f09dd2bb2b65038eeb7
Reviewed-on: https://chromium-review.googlesource.com/c/1287889
Commit-Queue: Jakob Kummerow <jkummerow@chromium.org>
Reviewed-by: Hannes Payer <hpayer@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#56920}
This is to prepare larger refactorings that reduce the amount of
information stored in the WasmCompilationUnits and avoid ever storing
the ModuleEnv. Instead, we will generate it when needed. This will
allow us to correctly switch from a trap-handler configuration to
non-trap-handler.
R=mstarzinger@chromium.org
Bug: v8:8343, v8:5277
Change-Id: I383a8105448ccdcae1148ddfebd74db70c648ecf
Reviewed-on: https://chromium-review.googlesource.com/c/1293951
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#56893}
Fold methods from intl.* to objects/intl-objects.*
Move Isolate* to the first parameter for some method
Move ICUSerice type under Intl
Hide ICUTimeZoneCache under a CreateTimeZoneCache factory method.
Bug: v8:5751
Cq-Include-Trybots: luci.v8.try:v8_linux_noi18n_rel_ng
Change-Id: Ie6f6a1ceee789333a077c1965de8e11d8c15c175
Reviewed-on: https://chromium-review.googlesource.com/c/1293109
Commit-Queue: Frank Tang <ftang@chromium.org>
Reviewed-by: Sathya Gunasekaran <gsathya@chromium.org>
Cr-Commit-Position: refs/heads/master@{#56873}
In the process:
- add volatile types for FastJSArray and remove the length_fast accessor
from JSArray with the application of more rigorous typing.
- add micro benchmarks for testing all the interesting slice cases
Also update a few assorted places in .tq code to make them more
idiomatic.
The original version of this patch had an overly agressive assert that has
been loosened.
TBR=jgruber@chromium.org
Change-Id: I56870862f4b124d1b38372daa326182a526c874c
Reviewed-on: https://chromium-review.googlesource.com/c/1291375
Reviewed-by: Daniel Clifford <danno@chromium.org>
Commit-Queue: Daniel Clifford <danno@chromium.org>
Cr-Commit-Position: refs/heads/master@{#56829}
This reverts commit 41ba3d3eb0.
Reason for revert: Speculative revert:
https://ci.chromium.org/p/v8/builders/luci.v8.ci/V8%20Fuzzer/27370https://ci.chromium.org/p/v8/builders/luci.v8.ci/V8%20Linux%20-%20predictable/19895
Original change's description:
> [builtins] Implement Array.prototype.slice in Torque
>
> In the process:
>
> - add volatile types for FastJSArray and remove the length_fast accessor
> from JSArray with the application of more rigorous typing.
> - add micro benchmarks for testing all the interesting slice cases
>
> Also update a few assorted places in .tq code to make them more
> idiomatic.
>
> Change-Id: I76ec2bb25b65a869180af1f7288419dc1f0a9c37
> Reviewed-on: https://chromium-review.googlesource.com/c/1281603
> Commit-Queue: Daniel Clifford <danno@chromium.org>
> Reviewed-by: Jakob Gruber <jgruber@chromium.org>
> Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#56806}
TBR=danno@chromium.org,jgruber@chromium.org,tebbi@chromium.org
Change-Id: I1f2c82b4c3ab0848857f620facacf9604d4fcd11
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/c/1290973
Reviewed-by: Sigurd Schneider <sigurds@chromium.org>
Commit-Queue: Sigurd Schneider <sigurds@chromium.org>
Cr-Commit-Position: refs/heads/master@{#56815}
In the process:
- add volatile types for FastJSArray and remove the length_fast accessor
from JSArray with the application of more rigorous typing.
- add micro benchmarks for testing all the interesting slice cases
Also update a few assorted places in .tq code to make them more
idiomatic.
Change-Id: I76ec2bb25b65a869180af1f7288419dc1f0a9c37
Reviewed-on: https://chromium-review.googlesource.com/c/1281603
Commit-Queue: Daniel Clifford <danno@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
Cr-Commit-Position: refs/heads/master@{#56806}
Non-Android platforms are protected in Chrome by site isolation, therefore we can
disable the untrusted code mitigations. We still enable them on Android, and on
simulator builds since that is where we do much of the correctness testing for Android.
Mitigations for ia32 are disabled since they conflict with upcoming work on an ia32
root register.
BUG=chromium:860429, v8:6666
Change-Id: I7831071ec1c4490b7d303314c53c27078fa04979
Reviewed-on: https://chromium-review.googlesource.com/c/1276470
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Commit-Queue: Ross McIlroy <rmcilroy@chromium.org>
Cr-Commit-Position: refs/heads/master@{#56753}
This also includes ports of Array.p.toString and Array.p.toLocaleString.
Many parts of the old JS implementation are preserved, because
TypedArray.p.join still relies on it. These will be removed once
TypedArray.p.join is ported to Torque.
To simplify implementation, special handling of extremely sparse arrays
has been removed.
Performance improvements vary by array size, elements, and sparse-ness.
Some quick numbers and graphs are here:
https://docs.google.com/spreadsheets/d/125VLmRMudk8XaomLCsZQ1ewc94WCqht-8GQwU3s9BW8/edit#gid=2087673710
Cq-Include-Trybots: luci.chromium.try:linux_chromium_headless_rel;luci.v8.try:v8_linux_noi18n_rel_ng;master.tryserver.blink:linux_trusty_blink_rel
Change-Id: Ia4069a068403ce36676c37401d349aefc976b045
Reviewed-on: https://chromium-review.googlesource.com/c/1196693
Commit-Queue: Peter Wong <peter.wm.wong@gmail.com>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
Cr-Commit-Position: refs/heads/master@{#56699}
In preparation for sharing RO_SPACE between all Isolates within a
process, this first pulls RO_SPACE out of the Startup snapshot and puts
it in its own ReadOnly snapshot.
The snapshot is first populated with the read-only roots. After that the
StartupSerializer serializes as before but starting from the first
mutable root. References to objects in the ReadOnly snapshot that aren't
themselves roots are added to a new cache called ReadOnlyObjectCache
which functions like the PartialSnapshotCache but lives in the
ReadOnlySerializer rather than the StartupSerializer. These cache
entries are referenced using a new bytecode: ReadOnlyObjectCache. (To
make room for this, the ApiReference bytecode has been moved).
To reduce code duplication, the StartupSerializer has been refactored to
create a new base class RootSerializer, which ReadOnlySerializer also
subclasses. The base class is responsible primarily for keeping track of
already serialized roots and visiting the roots.
Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng
Change-Id: Iff26042886130ae22eccf2e11b35f6f226f4a792
Bug: v8:8191
Reviewed-on: https://chromium-review.googlesource.com/c/1244676
Commit-Queue: Dan Elphick <delphick@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#56681}
Adds a build-time flag to control enabling of V8 Lite mode. Currently
this mode enables optimize-for-size and makes that flag read-only so that
it can't be changed at runtime.
This mode also replaces the --minimal flag which was previously used
to make porting easier.
BUG=v8:8293
Change-Id: I8360b4d55dd15a2a7c18429c94329dc5264dea86
Reviewed-on: https://chromium-review.googlesource.com/c/1276467
Commit-Queue: Ross McIlroy <rmcilroy@chromium.org>
Reviewed-by: Dan Elphick <delphick@chromium.org>
Cr-Commit-Position: refs/heads/master@{#56653}
This class was defined in function-body-decoder.cc, but it's not an
implementation of function body decoding, but rather the interface
between the decoder and the WasmGraphBuilder. Hence move it out to its
own file.
R=titzer@chromium.org, mstarzinger@chromium.org
Bug: v8:8238
Change-Id: Ib9bf47e90a3683f578b30b6de74d01da81b2be93
Reviewed-on: https://chromium-review.googlesource.com/c/1278391
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#56602}
The primary purpose of this is to untangle a circular dependency
objects.h -> handles.h -> objects.h. Most compilation units only
need message-template.h, without the rest of messages.h.
Bonus: change the enum to an enum class for improved type safety.
Bug: v8:3770
Cq-Include-Trybots: luci.v8.try:v8_linux_noi18n_rel_ng
Change-Id: I8102c55197a450811de2588a68a08e7f99ea6b9e
Reviewed-on: https://chromium-review.googlesource.com/c/1272193
Commit-Queue: Jakob Kummerow <jkummerow@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Reviewed-by: Ben Titzer <titzer@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Reviewed-by: Adam Klein <adamk@chromium.org>
Cr-Commit-Position: refs/heads/master@{#56583}
... containing RootsTable, ExternalReferenceTable, builtins array and
potentially some other data that can be accessed via the RootRegister.
This is a preliminary step before adding support for pointer-compression
friendly heap layout.
Bug: v8:8182
Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng
Change-Id: I2899f657aaff1351a5304afa0b1a4c5ae4cfc31d
Reviewed-on: https://chromium-review.googlesource.com/c/1245426
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Ben Titzer <titzer@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Commit-Queue: Igor Sheludko <ishell@chromium.org>
Cr-Commit-Position: refs/heads/master@{#56551}
Now that import wrappers are no longer specialized to an index, they
can be cached in the native module, keyed by
(WasmImportCallKind, FunctionSig). This saves instantiation time and
also fixes a (slow) memory leak.
R=mstarzinger@chromium.org
Change-Id: I5197bbfae79d6e811a01289b990db445373eea6c
Reviewed-on: https://chromium-review.googlesource.com/c/1270943
Commit-Queue: Ben Titzer <titzer@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#56526}
An asan bug on Windows breaks the chrome asan bot. This disables asan
for the Torque build step as a workaround.
Bug: chromium:893437
Change-Id: I4ccc25e7667abb3ea167c3e8af1210685ff06b9e
Reviewed-on: https://chromium-review.googlesource.com/c/1273105
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Tobias Tebbi <tebbi@chromium.org>
Cr-Commit-Position: refs/heads/master@{#56523}
This flag stresses different interleavings of background and foreground
tasks by delaying the execution of each task by a random value between
0 and 100ms (with a quadratic distribution favoring smaller delayes).
The implementation is encapsulated in the new {DelayedTasksPlatform}
class, which wraps each task in a {DelayedTask} which first sleeps for
the given number of microseconds, then executes the actual task.
Both the old {PredictablePlatform} and the new {DelayedTasksPlatform}
are moved to the new d8-platforms.cc file with an interface to create
them in d8-platforms.h.
R=yangguo@chromium.org, mslekova@chromium.org
Bug: v8:8278
Change-Id: I5847fb2da31ffde773195da7ad3f56a0390cc05b
Reviewed-on: https://chromium-review.googlesource.com/c/1270592
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Reviewed-by: Maya Lekova <mslekova@chromium.org>
Cr-Commit-Position: refs/heads/master@{#56496}
Simplify the logic in the CompilerDispatcher to use BackgroundCompileTasks
directly, rather than having a (now unecessary) CompilerDispatcherJob
abstraction. In the process, the CompilerDispatcherTracer is removed, and the
idle task logic is simplified finalize already compiled jobs until the
idle task deadline.
BUG=v8:8238, v8:8041
Change-Id: I1ea2366f959b6951de222d62fde80725b3cc70ff
Reviewed-on: https://chromium-review.googlesource.com/c/1260123
Commit-Queue: Ross McIlroy <rmcilroy@chromium.org>
Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Cr-Commit-Position: refs/heads/master@{#56473}
