Declare Variables with a name and position, rather than by passing
through a VariableProxy. This allows us to not create dummy proxies
for things like function declarations, and allows us to consider those
declarations unused.
As a side-effect, we also have to check if a variable is unused in the
bytecode generator (as it will no longer be allocated), and we end up
skip generating code/SFIs for dead variables/functions.
Change-Id: I4c2c872473f23e124f9456b4b92f87159658f8e0
Reviewed-on: https://chromium-review.googlesource.com/c/1414916
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
Cr-Commit-Position: refs/heads/master@{#59088}
V8 has no path in calling this API and thus there is no way for the
embedder to get notified about this event.
Bug: chromium:843903
Change-Id: I938675aed9191a292f21bae0fed0e3ea8acaf936
Reviewed-on: https://chromium-review.googlesource.com/c/1434377
Commit-Queue: Michael Lippautz <mlippautz@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#59087}
Change-Id: Id9a893e9ca87053bb8e010730a9c3e7061bca6a5
Reviewed-on: https://chromium-review.googlesource.com/c/1435934
Reviewed-by: Peter Wong <peter.wm.wong@gmail.com>
Commit-Queue: Daniel Clifford <danno@chromium.org>
Cr-Commit-Position: refs/heads/master@{#59086}
Remove hc from -u- if does not agree with the resolved one.
Bug: v8:7482
Change-Id: I635c5357b8fd2b630ed80577a9b6a116e9a0e3f4
Reviewed-on: https://chromium-review.googlesource.com/c/1417170
Commit-Queue: Frank Tang <ftang@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Cr-Commit-Position: refs/heads/master@{#59084}
Both PropertyCallbackInfo<T> and WeakCallbackInfo<T> callbacks are
using a design that relies on invalid reinterpret_casts and thereby
undefined behavior. Since they are exposed via the public API, fixing
this is going to be difficult.
Bug: v8:3770,v8:8735
Change-Id: I7171c5b38f070b4a43a0de1ebb7d1a1458c1d91f
Reviewed-on: https://chromium-review.googlesource.com/c/1436222
Reviewed-by: Adam Klein <adamk@chromium.org>
Commit-Queue: Jakob Kummerow <jkummerow@chromium.org>
Cr-Commit-Position: refs/heads/master@{#59083}
This is a partial reland of 048a3a3ecb
Original change's description:
> [Intl] Cleans up intl-relative-time-format flag
>
> Cleans up always=true intl-relative-time-format flag
> It shipped in m71 in Dec 2018.
>
> Bug: v8:8704
> Change-Id: I52d86aea9aedf201a216a1df0773a486fbee37b9
> Reviewed-on: https://chromium-review.googlesource.com/c/1417299
> Reviewed-by: Sathya Gunasekaran <gsathya@chromium.org>
> Commit-Queue: Frank Tang <ftang@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#58904}
Bug: v8:8704
Change-Id: Iac62a347eea7f85dd3fa4a3bbfb18091b80f9a5e
Reviewed-on: https://chromium-review.googlesource.com/c/1429224
Reviewed-by: Sathya Gunasekaran <gsathya@chromium.org>
Commit-Queue: Frank Tang <ftang@chromium.org>
Cr-Commit-Position: refs/heads/master@{#59081}
This adds the new runtime flag as a variant and runs it on a subset of
builders corresponding to the "extra" testing set.
Currently failing tests are skipped in the new variant.
After https://crrev.com/c/1433777 this costs only little additional
resources.
Bug: v8:8678
Change-Id: Ibd0e38872814d11252e55a7c6a58d313aa84ebe3
Reviewed-on: https://chromium-review.googlesource.com/c/1433774
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Cr-Commit-Position: refs/heads/master@{#59080}
This allows us to do fewer checks on the common path.
Change-Id: I2d1a9239cbf7b637bdbc2a15abaadae225410acf
Reviewed-on: https://chromium-review.googlesource.com/c/1430700
Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Commit-Queue: Toon Verwaest <verwaest@chromium.org>
Cr-Commit-Position: refs/heads/master@{#59078}
This is a reland of 0896599f6f with a fix for
failing layout test.
Original change's description:
> Change SetProperty/SetSuperProperty to infer language mode when possible
>
> In most cases, the language mode can be inferred from the closure and
> the context. Computing the language mode instead of passing it around
> simplifies the ICs and will make it possible to go towards lazily
> allocating feedback vectors. Currently ICs obtain the language mode from
> the feedback vectors and with lazy feedback allocation we may not always
> have feedback vectors. Since computing language mode is a bit expensive
> we want to defer it as far as possible.
>
> In Array builtins and other builtins like Reflect.Set we need to force a
> language mode when setting the properties. To support these cases the
> SetProperty methods allow the language mode to be overridden when needed.
>
> This is a first cl in a series of cls, that will defer the language mode
> computation further and remove language mode where it is not needed.
>
> BUG: v8:8580
> Change-Id: I9c2396e3bcfe77c3c9d6760c46d86954d54744b9
> Reviewed-on: https://chromium-review.googlesource.com/c/1409426
> Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
> Reviewed-by: Jakob Gruber <jgruber@chromium.org>
> Reviewed-by: Toon Verwaest <verwaest@chromium.org>
> Commit-Queue: Mythri Alle <mythria@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#58893}
TBR: ahaas@chromium.org
Change-Id: Id5d81eae91b55638dbc72168f0e5203e684869fb
Reviewed-on: https://chromium-review.googlesource.com/c/1421077
Commit-Queue: Mythri Alle <mythria@chromium.org>
Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#59075}
This patch reduces the cost of the predicate that computes whether an
object contains only data or may contain pointers.
This also guards pushing to the copy_list_ with the predicate.
Bug: chromium:852420
Change-Id: I55c4e15eb8341708a21f484fb95b2c2cc2b25143
Reviewed-on: https://chromium-review.googlesource.com/c/1430068
Commit-Queue: Ulan Degenbaev <ulan@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#59074}
This is part of an effort to improve the performance of TA#subarray.
Bug: v8:7161
Change-Id: Id110b4bd30fd8f67b9f8f23268e64de22e471c68
Reviewed-on: https://chromium-review.googlesource.com/c/1432596
Commit-Queue: Peter Wong <peter.wm.wong@gmail.com>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#59073}
We already have an implication check that if the ElementsKind
is double, then the elements backing store should be a
FixedDoubleArray. Additionally check that if the ElementsKind is
object or smi, that the backing store is a FixedArray.
R=neis@chromium.org
Bug: v8:8662
Change-Id: Ib01079251fe7e1f1c076d4814ef5d306bb179ef0
Reviewed-on: https://chromium-review.googlesource.com/c/1434234
Reviewed-by: Georg Neis <neis@chromium.org>
Commit-Queue: Michael Stanton <mvstanton@chromium.org>
Cr-Commit-Position: refs/heads/master@{#59072}
Also introduce a helper for filling the arguments hints vector.
Bug: v8:7790
Change-Id: I89526f3d10bb4fc498a371d48d074254bd860cdc
Reviewed-on: https://chromium-review.googlesource.com/c/1433790
Reviewed-by: Maya Lekova <mslekova@chromium.org>
Commit-Queue: Georg Neis <neis@chromium.org>
Cr-Commit-Position: refs/heads/master@{#59070}
If a value dies in deferred code, there is no need to reload it at the
end of the deferred code, as it will be dead in the non-deferred code
that follows in control flow order. In the linearized view of register
allocation, this is encoded as a lifetime gap (or the end of an
interval).
Moreover, this may lead to wrong assignments if the value dies
between two deferred blocks and we leave a non-splintered live
range in the middle of deferred code.
Bug: chromium:915975
Change-Id: Iec68fe86f0dfbbac612635a637f3239475906d14
Reviewed-on: https://chromium-review.googlesource.com/c/1433784
Commit-Queue: Stephan Herhut <herhut@chromium.org>
Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#59068}
This reverts commit 25457c60a7.
Reason for revert: https://crbug.com/v8/8731
Original change's description:
> [testrunner] load tests concurrently into test execution processor
>
> loading every test up-front into the processing queue costs about 224MB for a
> x64 testsuite run.
>
> This CL eliminates that overhead by utilizing generators and threading.
>
> LoadingProc now loads test after receiving the results of the loaded tests.
>
> R=machenbach@chromium.org
> CC=yangguo@chromium.org,sergiyb@chromium.org
>
> Bug: v8:8174
> Change-Id: I8f4e6de38430c54fe126e4504b52851866769efb
> Reviewed-on: https://chromium-review.googlesource.com/c/1420678
> Commit-Queue: Tamer Tas <tmrts@chromium.org>
> Reviewed-by: Michael Achenbach <machenbach@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#59056}
TBR=machenbach@chromium.org,tmrts@chromium.org
Change-Id: I1e074a031dced367a32a93827b9e863b0331340f
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: v8:8174
Reviewed-on: https://chromium-review.googlesource.com/c/1433792
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#59065}
All users have elements already, and we can just pass that in.
Change-Id: Ie9b8c1290d74bce120461c9f15695e8eb7dfd7c2
Reviewed-on: https://chromium-review.googlesource.com/c/1430072
Commit-Queue: Michael Stanton <mvstanton@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#59064}
... more precisely, do not mess up the exceptional edges.
Bug: chromium:924151
Change-Id: I3541a1c339c07f509519d4ece6d677dd499f181e
Reviewed-on: https://chromium-review.googlesource.com/c/1429860
Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
Commit-Queue: Jaroslav Sevcik <jarin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#59063}
Previously, trusted (or no-mitigations) has been tested on a subset of builders
from all platforms. This reduces it to arm-sim and native Android devices.
Change-Id: I90066686e6a92db4a944025538e01a117f324421
Reviewed-on: https://chromium-review.googlesource.com/c/1433777
Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#59062}
After the v8:8689 "Split compilation in three stages" commit landed,
WasmCompilationUnit::result_ was left dangling. In builds that
noticed this (in particular certain jumbo builds), the
-Wunused-private-field warning triggered which broke the build.
Bug: v8:8689
Change-Id: Iafc56b3dc6bb53e2e8417cabce540c2fcfd3431a
Reviewed-on: https://chromium-review.googlesource.com/c/1433780
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Reviewed-by: Ben Titzer <titzer@chromium.org>
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#59059}
Other platforms besides ARM64 Windows may also have alignment
requirements, e.g. PPC and s390. These requirements may affect
both the code pointer field and the size field, and so they
each need alignment directives because they are stored in
different sections.
Since aligning wastes a handful of bytes at most, not making
alignment conditional on the platform type seems like a good idea.
Refs: https://github.com/nodejs/node/pull/24875
Change-Id: I1f58606af294be65e74a1f107cd05fc21e032704
Reviewed-on: https://chromium-review.googlesource.com/c/1433778
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#59058}
This CL implements handling of Call/ConstructWithSpread bytecodes
by passing empty hints for the parameters mapped to the spread argument.
R=neis@chromium.org
Bug: v8:7790
Change-Id: I00f4e87e7bf62c3f387ee92d9aa4d252bdf79838
Reviewed-on: https://chromium-review.googlesource.com/c/1429864
Commit-Queue: Maya Lekova <mslekova@chromium.org>
Reviewed-by: Georg Neis <neis@chromium.org>
Cr-Commit-Position: refs/heads/master@{#59057}
loading every test up-front into the processing queue costs about 224MB for a
x64 testsuite run.
This CL eliminates that overhead by utilizing generators and threading.
LoadingProc now loads test after receiving the results of the loaded tests.
R=machenbach@chromium.org
CC=yangguo@chromium.org,sergiyb@chromium.org
Bug: v8:8174
Change-Id: I8f4e6de38430c54fe126e4504b52851866769efb
Reviewed-on: https://chromium-review.googlesource.com/c/1420678
Commit-Queue: Tamer Tas <tmrts@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#59056}
v8::Global may be used as a weak reference. In the case this reference is a
simple phantom reference, we need to update the internal state to be able to
clear the right slot once the object referred to is dead.
This reverts commit 18f32ca89c.
Bug: chromium:924220
Change-Id: I3caec77448b0c5fcb461c8f8b5015de2978b3931
Reviewed-on: https://chromium-review.googlesource.com/c/1430015
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Commit-Queue: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#59055}
If __FILE__ contained a backslash (which happened in jumbo builds on
Windows), then the generated embedded.S could contain broken strings.
This replaces backslashes with forward slashes before writing the
paths to embedded.S.
Bug: v8:8418,chromium:924454
Change-Id: I32134e9cd8acd2437f61a8f74c14583fa87a4bdf
Reviewed-on: https://chromium-review.googlesource.com/c/1430699
Reviewed-by: Michael Stanton <mvstanton@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Commit-Queue: Daniel Bratell <bratell@opera.com>
Cr-Commit-Position: refs/heads/master@{#59053}
This requires honoring the instance size of the object stored in the
map for JSObject. To do this, allocation is now split into two
instrinsics, one that calculates the base size of the allocated object
(%GetAllocationBaseSize) and one that actually allocates (%Allocate).
In the process, remove objects.tq, which only existed to contain a
macro to fetch the default JSObject map, which is functionality that
is now in the JSObject class constructor.
Bug: v8:7793
Change-Id: I426a7943aac67eacad46d4ff39f5c821489a04bc
Reviewed-on: https://chromium-review.googlesource.com/c/1426959
Commit-Queue: Daniel Clifford <danno@chromium.org>
Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
Cr-Commit-Position: refs/heads/master@{#59052}
using add insetad of addi when Operand is more than 16 bits long
Change-Id: I7f9452381ed8b321ec71e68d0d90485508b69885
Reviewed-on: https://chromium-review.googlesource.com/c/1430619
Commit-Queue: Junliang Yan <jyan@ca.ibm.com>
Reviewed-by: Junliang Yan <jyan@ca.ibm.com>
Cr-Commit-Position: refs/heads/master@{#59049}
This is part of an effort to improve the performance of TA#subarray.
Bug: v8:7161
Change-Id: I1579ee45a810e1f2d0279fef9e18bad09e1fc3d9
Reviewed-on: https://chromium-review.googlesource.com/c/1426107
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#59048}
This reverts commit 584f0b43b2.
Reason for revert: Breaks MSAN build - https://ci.chromium.org/p/v8/builders/luci.v8.ci/V8%20Linux%20-%20arm64%20-%20sim%20-%20MSAN/24872
Original change's description:
> [api, global-handles] Fix moving weak Global<T>
>
> v8::Global may be used as a weak reference. In the case this reference is a
> simple phantom reference, we need to update the internal state to be able to
> clear the right slot once the object refered to is dead.
>
> Bug: chromium:924220
> Change-Id: I2ab7c3afcbe22988791faef406c284db03a43caf
> Reviewed-on: https://chromium-review.googlesource.com/c/1430101
> Commit-Queue: Michael Lippautz <mlippautz@chromium.org>
> Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#59040}
TBR=ulan@chromium.org,mlippautz@chromium.org
Change-Id: I19c3e929962203df4e1f24191d054180723b1c9d
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: chromium:924220
Reviewed-on: https://chromium-review.googlesource.com/c/1430833
Reviewed-by: Maya Lekova <mslekova@chromium.org>
Commit-Queue: Maya Lekova <mslekova@chromium.org>
Cr-Commit-Position: refs/heads/master@{#59046}
Testrunner has ancient support for JUnit compatible XML output.
This CL removes this old feature.
R=mstarzinger@chromium.org,jgruber@chromium.org,jkummerow@chromium.org
CC=machenbach@chromium.org
Bug: v8:8728
Change-Id: I7e1beb011dbaec3aa1a27398a5c52abdd778eaf0
Reviewed-on: https://chromium-review.googlesource.com/c/1430065
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Commit-Queue: Tamer Tas <tmrts@chromium.org>
Cr-Commit-Position: refs/heads/master@{#59045}
Also insert NestedVariableDeclarations in the preparser if they occur. This
should be uncommon enough to not hurt preparser performance. This will also
allow us to stop checking for conflicts on already preparsed code. Since the
preparser itself will mainly run off the main thread, this can allow us to free
some main-thread time.
Bug: v8:7829, v8:8706
Change-Id: I03f2690eb7b22e941995d6f2697e64211ddbeffb
Reviewed-on: https://chromium-review.googlesource.com/c/1430069
Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Commit-Queue: Toon Verwaest <verwaest@chromium.org>
Cr-Commit-Position: refs/heads/master@{#59044}
For the reference types anyref, anyfunc, and nullref, there exist
sub-typing rules. The spec says
A reference type reftype1 matches a reference type reftype2 if and only
if:
* Either both reftype1 and reftype2 are the same.
* Or reftype1 is nullref.
* Or reftype2 is anyref.
This CL introduces the type nullref for ref-null, and implements the
sub-typing rules in the function-body-decoder.
Note that because of the sub-typing check validation performance may
regresses. In that case we can optimize the sub-typing check.
R=titzer@chromium.org, clemensh@chromium.org
Bug: v8:7581
Change-Id: I55bab72a109f3374da3770d141b0fc8067aad8b2
Reviewed-on: https://chromium-review.googlesource.com/c/1430061
Commit-Queue: Andreas Haas <ahaas@chromium.org>
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Reviewed-by: Ben Titzer <titzer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#59043}
For jitless mode, we must be able to switch between the native regexp
engine and interpreted regexps at runtime since --jitless is itself a
runtime flag.
This CL unconditionally compiles in the regexp interpreter in all
builds. It can be toggled through the --regexp-interpret-all flag.
Bug: v8:7777, v8:8678
Change-Id: Iadd21a152de7c07586d5af32bee5fdf9931f1a01
Reviewed-on: https://chromium-review.googlesource.com/c/1408929
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Peter Marshall <petermarshall@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Cr-Commit-Position: refs/heads/master@{#59041}
v8::Global may be used as a weak reference. In the case this reference is a
simple phantom reference, we need to update the internal state to be able to
clear the right slot once the object refered to is dead.
Bug: chromium:924220
Change-Id: I2ab7c3afcbe22988791faef406c284db03a43caf
Reviewed-on: https://chromium-review.googlesource.com/c/1430101
Commit-Queue: Michael Lippautz <mlippautz@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#59040}
This reverts commit c5154eeada.
Reason for revert: Broke ASAN bot
Original change's description:
> [build][torque] remove workarounds for clang bug
>
> Now that https://bugs.llvm.org/show_bug.cgi?id=40118 has been fixed and
> rolled into V8, we can remove the workarounds for this Clang bug.
>
> This also effectively reverts
> https://chromium-review.googlesource.com/c/v8/v8/+/1280222
>
> Bug: chromium:893437
> Change-Id: Ia0d6d8ebdafafbc380b1b7a7809ef16effe50d71
> Reviewed-on: https://chromium-review.googlesource.com/c/1425519
> Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
> Commit-Queue: Tobias Tebbi <tebbi@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#58987}
TBR=jarin@chromium.org,tebbi@chromium.org
# Not skipping CQ checks because original CL landed > 1 day ago.
Bug: chromium:893437 chromium:924534
Change-Id: Idfc266c11e3413334a12694dd573bdecf5427890
Reviewed-on: https://chromium-review.googlesource.com/c/1430067
Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
Commit-Queue: Tobias Tebbi <tebbi@chromium.org>
Cr-Commit-Position: refs/heads/master@{#59039}
