This eliminates the AstValue class, effectively moving its
implementation into the Literal AstNode. This should cause
no difference in behavior, but it does signal some shifts
in the underlying system. Biggest changes include:
- Reduction in AST memory usage
- No duplicate HeapNumbers in Ignition constant pools
- Non-String values are allocated either at constant pool
creation time (or at boilerplate creation time for literals),
rather than at AstValueFactory::Internalize() time.
There are a variety of test-only/debug-only changes due to these
switches as well.
Bug: v8:6984
Change-Id: I5f178040ce2796d4e7370c24d1063419e1c843a1
Reviewed-on: https://chromium-review.googlesource.com/731111
Commit-Queue: Adam Klein <adamk@chromium.org>
Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
Reviewed-by: Marja Hölttä <marja@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49013}
This happens when RCS are enabled dynamically and the callsite is inside
the background parser.
BUG=chromium:760649
Change-Id: I216b955ed91d9c663ce3027aaa8ffb515bfe13ab
Reviewed-on: https://chromium-review.googlesource.com/740911
Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Commit-Queue: Alexei Filippov <alph@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49010}
We have a check on maximum number of levels that can be inlined. This
in some cases causes performance cliffs, when we cannot inline a small
function because it has exceeded the number of levels. This cl removes
that check. The intuition is that, having gone down several levels in
a particular line stopping inlining that chain and exploring a new
call site may not be beneficial.
Bug: v8:6871
Change-Id: I120056db38e78ce48dff010b6cf994259238582a
Reviewed-on: https://chromium-review.googlesource.com/741705
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Commit-Queue: Benedikt Meurer <bmeurer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49009}
Instead of creating a runtime call for the static class field
initializer in the AST, we do it in the bytecode generator.
This adds the initializer function to the ClassLiteral AST node.
Bug: v8:5367
Change-Id: Iffaa6531511023812011ee19fc96cea9e5c9d3f3
Reviewed-on: https://chromium-review.googlesource.com/736315
Reviewed-by: Georg Neis <neis@chromium.org>
Reviewed-by: Mythri Alle <mythria@chromium.org>
Reviewed-by: Adam Klein <adamk@chromium.org>
Commit-Queue: Sathya Gunasekaran <gsathya@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49008}
To avoid accessing the heap during asm.js compilation, use the pending
error handler to store the pending warnings such that they can be reported
later during finalization.
As part of this change, refactor PendingCompilationErrorHandler to have a
MessageDetails class holding details of either error or warning messages.
BUG=v8:5203
Change-Id: I5b09254f8899b8dc57d94f1986c7183da847eae3
Reviewed-on: https://chromium-review.googlesource.com/735607
Commit-Queue: Ross McIlroy <rmcilroy@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49007}
This moves the handling of the receiver and the final spread argument
into Generate_InterpreterPushArgs and merges the stack allocation to a
single claim operation for the whole argument setup. When we start
padding arguments in TF, we will simply need to claim one extra slot
and store padreg to it in Generate_InterpreterPushArgs (hence the
remaining TODO).
This also replaces the single use of Generate_CheckStackOverflow with
Generate_StackOverflowCheck and removes the former. This change is also
done for arm, ia32 and x64.
Bug: v8:6644
Change-Id: I8d06dda96dbc4a6f219b73c711f894320c2f6cdf
Reviewed-on: https://chromium-review.googlesource.com/738031
Commit-Queue: Georgia Kouveli <georgia.kouveli@arm.com>
Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49005}
The status-file flags and the flags from the test case's source code
must always overwrite extra flags set by bots.
Bug: v8:6924
Cq-Include-Trybots: master.tryserver.v8:v8_linux_noi18n_rel_ng
Change-Id: I0e2aabb69da7cfb8ba6c1c79bd3851462071a6ac
Reviewed-on: https://chromium-review.googlesource.com/732656
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Reviewed-by: Sergiy Byelozyorov <sergiyb@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49001}
(This is a reland of cb84b6f624)
This works in the ICs since compiled handlers are not shared anymore.
Bug: chromium:759734
Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng
Change-Id: I3b7d6ae34bb4cfa213f679354fac56fb51bfd5ed
Reviewed-on: https://chromium-review.googlesource.com/739822
Reviewed-by: Igor Sheludko <ishell@chromium.org>
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Commit-Queue: Toon Verwaest <verwaest@chromium.org>
Cr-Commit-Position: refs/heads/master@{#48999}
Because this test uses heap verification, it is quite slow. Split it
into 4 smaller tests to avoid test timeout and allow them to be run
in parallel.
R=ahaas@chromium.org
Bug:
Change-Id: Ie4ac841d1d8215019bb5cfcc335daea6b10ab789
Reviewed-on: https://chromium-review.googlesource.com/738146
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Commit-Queue: Ben Titzer <titzer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#48998}
This should avoid changes in code serializer in a follow-up class literals
improvement CL.
Bug: v8:5799
Change-Id: I4e4386333bcc7abb30399d4e9abba4eee80ca932
Reviewed-on: https://chromium-review.googlesource.com/733037
Commit-Queue: Igor Sheludko <ishell@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Cr-Commit-Position: refs/heads/master@{#48996}
This adds two tests to verify that the --liftoff flag has the indented
effect, and that Liftoff compilation is off by default.
R=titzer@chromium.org
Bug: v8:6600
Change-Id: Ie7e13184b5068f572b78dbdf7abbcded6d859fc5
Reviewed-on: https://chromium-review.googlesource.com/733561
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Reviewed-by: Ben Titzer <titzer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#48995}
We now represent the SameValue operation explicitly in TurboFan and the
operation can thus participate in all kinds of optimizations. Especially
we get rid of the JSCall node in the general case, which blocks several
optimizations across the call. The general, baseline performance is now
always on par with StrictEqual.
Once the StrictEqual operator is also a simplified operator, we should
start unifying the type based optimizations in SimplifiedLowering.
In the micro-benchmark we go from
testStrictEqual: 1422 ms.
testObjectIs: 1520 ms.
testManualSameValue: 1759 ms.
to
testStrictEqual: 1426 ms.
testObjectIs: 1357 ms.
testManualSameValue: 1766 ms.
which gives the expected result.
Bug: v8:7007
Change-Id: I0de3ff6ff6209ab4c3edb69de6a16e387295a9c8
Reviewed-on: https://chromium-review.googlesource.com/741228
Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
Commit-Queue: Benedikt Meurer <bmeurer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#48994}
... and use them to complete the BigInt function.
Bug: v8:6791
Change-Id: Ia36db86b92d1a0cfcb783516e04d6c0e3750f194
Reviewed-on: https://chromium-review.googlesource.com/737643
Commit-Queue: Georg Neis <neis@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Cr-Commit-Position: refs/heads/master@{#48993}
This is an intermediate CL to move the complete --trace-map infrastructure to
a log-based version.
Change-Id: I0673052b1b87fe338e38dc609434a52af6a0652d
Reviewed-on: https://chromium-review.googlesource.com/738835
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Cr-Commit-Position: refs/heads/master@{#48988}
This is a reland of c34042cc64
Original change's description:
> [heap-profiler] Do not treat WeakMap values as weak.
>
> For the WeakHashTable objects only mark keys as weak while leaving values as strong references.
>
> BUG=chomium:773722
>
> Change-Id: Iabd5ba293d05fe68a2af6503fcdd711ecc182482
> Reviewed-on: https://chromium-review.googlesource.com/730771
> Commit-Queue: Alexei Filippov <alph@chromium.org>
> Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#48985}
TBR=ulan@chromium.org
Bug: chomium:773722
Change-Id: Icede16fde528d147cde5c3f6c72f2029876b099f
Reviewed-on: https://chromium-review.googlesource.com/740722
Reviewed-by: Alexei Filippov <alph@chromium.org>
Commit-Queue: Alexei Filippov <alph@chromium.org>
Cr-Commit-Position: refs/heads/master@{#48987}
For the WeakHashTable objects only mark keys as weak while leaving values as strong references.
BUG=chomium:773722
Change-Id: Iabd5ba293d05fe68a2af6503fcdd711ecc182482
Reviewed-on: https://chromium-review.googlesource.com/730771
Commit-Queue: Alexei Filippov <alph@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#48985}
Add the --trace-feedback-updates flag (disabled by default, enabled by
the v8_enable_trace_feedback_updates gn arg), which traces updates to
feedback slots.
Change-Id: Ib8f02f958e2adf04abda5d4ed680e29fa04895ab
Reviewed-on: https://chromium-review.googlesource.com/725814
Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Cr-Commit-Position: refs/heads/master@{#48983}
- Moves base::OS memory management calls into platform-posix.cc,
using preprocessor to adjust for each platform.
Bug: chromium:756050
Change-Id: I2af4dce4379ad1fe9e22e5ab5c6d6a7faa3655b3
Reviewed-on: https://chromium-review.googlesource.com/738890
Commit-Queue: Bill Budge <bbudge@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Reviewed-by: Hannes Payer <hpayer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#48981}
This reverts commit cb84b6f624.
Reason for revert: <INSERT REASONING HERE>
Original change's description:
> [lazy-accessor-pairs] Don't take the fast paths if the context needs to be switched
>
> This works in the ICs since compiled handlers are not shared anymore.
>
> As drive-by cleanup I also removed custom code to deal with compiled handler sharing for primitive and access-checked objects.
>
> Bug: chromium:759734
> Change-Id: Ifb394221c2398f42ea9305acc02845db6004c680
> Reviewed-on: https://chromium-review.googlesource.com/738381
> Commit-Queue: Toon Verwaest <verwaest@chromium.org>
> Reviewed-by: Igor Sheludko <ishell@chromium.org>
> Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#48979}
TBR=jarin@chromium.org,ishell@chromium.org,verwaest@chromium.org
Change-Id: I9b7424252cbc3f18efd6b6b5b3818651c2863f5c
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: chromium:759734
Reviewed-on: https://chromium-review.googlesource.com/739487
Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Commit-Queue: Toon Verwaest <verwaest@chromium.org>
Cr-Commit-Position: refs/heads/master@{#48980}
This works in the ICs since compiled handlers are not shared anymore.
As drive-by cleanup I also removed custom code to deal with compiled handler sharing for primitive and access-checked objects.
Bug: chromium:759734
Change-Id: Ifb394221c2398f42ea9305acc02845db6004c680
Reviewed-on: https://chromium-review.googlesource.com/738381
Commit-Queue: Toon Verwaest <verwaest@chromium.org>
Reviewed-by: Igor Sheludko <ishell@chromium.org>
Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#48979}
Rename |property_attributes| to |initial_property_attributes| and ensure
that it is used as a storage of values only for AccessorInfos installed in
API Templates (i.e. ObjectTemplate and FunctionTemplate).
When an AccessorInfo is installed directly into an existing JS object
(via JSObject::SetAccessor) or into a DescriptorArray (when certain V8
objects' shapes are configured) it is not necessary to thread attributes
being set through the AccessorInfo instance.
Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng
Change-Id: Ibe61026f08c42549756f694129a286635ffe5769
Reviewed-on: https://chromium-review.googlesource.com/730425
Commit-Queue: Igor Sheludko <ishell@chromium.org>
Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Cr-Commit-Position: refs/heads/master@{#48978}
This is the first step towards lazy-deserializing bytecode handlers.
Bytecode handler code objects are now serialized into the builtins
snapshot area (which, like many other related concepts, has become
somewhat of a misnomer now that it contains both builtins and
handlers).
Handlers are still eagerly-deserialized upon Isolate creation. This will
change in follow-up CLs.
Bug: v8:6624
Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng
Change-Id: I7b257f76f5e9e90d5f7b183980bae7bc621171fc
Reviewed-on: https://chromium-review.googlesource.com/738030
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Peter Marshall <petermarshall@chromium.org>
Reviewed-by: Mythri Alle <mythria@chromium.org>
Cr-Commit-Position: refs/heads/master@{#48977}
This moves the initialization of the {Code::stub_key} field into the
allocator for {Code} objects, essentially making the field in question
immutable after allocation.
R=verwaest@chromium.org
BUG=v8:6792
Change-Id: I8ba2ffeea792d0d566995c08e3572ae63a7c1e94
Reviewed-on: https://chromium-review.googlesource.com/739141
Commit-Queue: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Cr-Commit-Position: refs/heads/master@{#48971}
