base::Optional is a replacement for std::optional, until we switch to
C++17 and can use std::optional directly.
The implementation is copied from chromium's base::Optional, but put in
the {v8::base} namespace instead of just {base}. Also, the
specialization of std::hash for base::Optional is omitted, since it's
disallowed in the style guide.
A first use in the AsmJsParser is introduced, if that one sticks, I
will refactor more uses of std::unique_ptr to use base::Optional
instead, avoiding the heap allocation.
R=mstarzinger@chromium.org
BUG=v8:6474
Change-Id: I019599d4bf9ff0105bf592dfb96d6050feba18ae
Reviewed-on: https://chromium-review.googlesource.com/528884
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#45810}
This splits the monolithic Apply builtin into several smaller builtins,
namely CallVargargs and ConstructVarargs, which accept a length and a
FixedArray of elements and deal with the actual stack manipulation, and
CallWithArrayLike / ConstructWithArrayLike that deal with getting the
elements from the receiver (for Function.prototype.apply, Reflect.apply
and Reflect.construct), which can now be written using the CSA.
The idea is that these builtins can be reused by TurboFan directly in
the future when we optimize apply better, and that we can also reuse the
core logic in the handling of spread calls/constructs.
R=petermarshall@chromium.org
BUG=v8:4587,v8:5269
Review-Url: https://codereview.chromium.org/2930623002
Cr-Commit-Position: refs/heads/master@{#45794}
This CL extracts the classes CompilationHelper, InstantiationHelper,
and AsyncCompileJob from wasm-module.cc and puts them into
module-compiler.{h|cc}. This is necessary to introduce a
WasmCompilationManager which is known to the isolate and manages the
lifetime of all AsyncCompileJobs.
In addition to the mechanical changes of copying the code and splitting
class declaration from instantiation, I did the following changes:
* I renamed the CompilationHelper to ModuleCompiler.
* A finalizer function is passed to the InstantiationHelper as a
parameter.
* Adjusted UpdateDispatchTable in wasm-module.cc to make it available in
wasm-module.h, also with the internal signature.
* Duplicate the ResolvePromise/RejectPromise helper functions.
I did not rename InstantiationHelper because I could not come up with a
good name, and it could benefit from a small special refactoring anyways.
BUG=v8:6436
R=clemensh@chromium.org, mtrofin@chromium.org
Change-Id: I4abe854c36dfc995b34c9d7b3e7ec0f4f0aa562e
Reviewed-on: https://chromium-review.googlesource.com/525572
Commit-Queue: Andreas Haas <ahaas@chromium.org>
Reviewed-by: Mircea Trofin <mtrofin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#45773}
Adds support for lowering of ToPrimitiveToString and StringConcat bytecodes
to the corresponding builtins. As part of this, moves the interpreter
implementation of these operations into the appropriate builtin generators
and add builtin support for them.
Also adds TailCallRuntimeN operator to code-assembler which enables tail calling
a runtime function when the arguments have already been pushed onto the stack.
BUG=v8:6243
Change-Id: Id5c851bc42e4ff490d9a23a8990ae331c7eac73e
Reviewed-on: https://chromium-review.googlesource.com/515362
Commit-Queue: Ross McIlroy <rmcilroy@chromium.org>
Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#45756}
We want to be stricter about checking in the future, so give embedders a
way to disable checking while they fix their microtasks scopes.
BUG=chromium:728583
R=machenbach@chromium.org
Change-Id: I443575bf6820b432def59cbbd4d048b2007573c8
Reviewed-on: https://chromium-review.googlesource.com/522604
Commit-Queue: Jochen Eisinger <jochen@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#45677}
This reverts commit c5aad5f284
The CL was reverted due to missing Chromium dependencies.
This commit removes the simulator trace-based tests, and the associated header file dependencies, previously pulled in by DEPS. The NEON support now has only hand-written tests, in test-assembler-arm64.cc. The remaining tests can be added in a later patch.
BUG=chromium:718439
Original issue's description:
> Reland "ARM64: Add NEON support"
>
> This reverts commit cc047635ff.
> The CL was reverted due to a missing DEPS mirror.
>
> Original issue's description:
> > ARM64: Add NEON support
> >
> > Add assembler, disassembler and simulator support for NEON in the ARM64 backend.
> >
> > BUG=
> >
> > Review-Url: https://codereview.chromium.org/2622643005
> > Cr-Commit-Position: refs/heads/master@{#44306}
>
> BUG=
>
> Review-Url: https://codereview.chromium.org/2812573003
> Cr-Commit-Position: refs/heads/master@{#44652}
Review-Url: https://codereview.chromium.org/2896303003
Cr-Commit-Position: refs/heads/master@{#45633}
Both lazy initialization and static initialization (via static
initializer) are bad. Fortunately, the arrays we are constructing are
constant anyway, so we can just compute them at compile time. This is
enforced by making them constexpr.
This also saves all code needed for the initialization, and makes
accesses to the tables faster, as they don't need any atomic operations
(via LazyInstance).
R=ahaas@chromium.org
Change-Id: I7d3ba9b0f2602f596a6c71c8c567e0d1bc306268
Reviewed-on: https://chromium-review.googlesource.com/517083
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Reviewed-by: Igor Sheludko <ishell@chromium.org>
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Cr-Commit-Position: refs/heads/master@{#45589}
Asynchronous context tracking mechanisms in Node.js need to store some
state on all promise objects. This change will allow embedders to
configure the number of internal fields on promises as is already done
for ArrayBuffers.
BUG=v8:6435
Review-Url: https://codereview.chromium.org/2889863002
Cr-Commit-Position: refs/heads/master@{#45496}
Add a new "v8_perf_prof_unwinding_info" option to gn that translates to building
the snapshot with "--perf-prof-unwinding-info". It allows unwinding TF generated
code from the snapshot.
Additionally, add a warning if one uses the option along with a snapshot which
was not build with unwinding information.
Running tests in this configuration revealed an issue in the checks performed
when accessing the stub cache. We would assume that the `Code::Flags` bitfield
only contains the `Kind` and `ExtraICState` fields, when there is also a
`HasUnwindingInfo` field which can now be set for stubs.
BUG=
Review-Url: https://codereview.chromium.org/2887783002
Cr-Commit-Position: refs/heads/master@{#45477}
Bug: v8:6055
Change-Id: Ib14dcef7f30bab88fad92b1a7329163beea50503
Reviewed-on: https://chromium-review.googlesource.com/511682
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Loo Rong Jie <loorongjie@gmail.com>
Cr-Commit-Position: refs/heads/master@{#45473}
All targets (at least on sanitizer builds) unconditionally depend
on //build/config/sanitizers:deps.
It is necessary for bug 593874 that all targets now also depend
on //buildtools/third_party/libc++:libcxx_proxy. This requires
adding a new "global dependency": //build/config:exe_and_shlib_deps.
This CL updates references to sanitizers:deps to instead refer to
//build/config:exe_and_shlib_deps.
BUG=chromium:723069
R=bradnelson@chromium.org
Review-Url: https://codereview.chromium.org/2894013003
Cr-Commit-Position: refs/heads/master@{#45435}
Adds a generic job that is based on items and tasks.
Bug: chromium:651354
Change-Id: I378e04741c5761ea6c4a74816b9af8ea22867f53
Reviewed-on: https://chromium-review.googlesource.com/506075
Commit-Queue: Michael Lippautz <mlippautz@chromium.org>
Reviewed-by: Hannes Payer <hpayer@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#45353}
Generate the code (extra runtime calls) for --trace-ignition support at
compile time, based on a #define (similar to TRACE_MAPS). Then check for
--trace-ignition at run-time when deciding whether to actually print
anything. This should make --trace-ignition less painful to use.
Note that --trace-igition is disabled by default, even on debug builds.
It has to be enabled with the gn arg "v8_enable_trace_ignition=true"
As a drive-by, TRACE_MAPS is renamed to V8_TRACE_MAPS, for consistency,
and SFI unique index (needed both by --trace-ignition and --trace-maps)
is cleaned up to be behind another #define.
Change-Id: I8dd0c62d0e6b7ee9c75541d45eb729dc03acbee9
Reviewed-on: https://chromium-review.googlesource.com/506203
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
Cr-Commit-Position: refs/heads/master@{#45346}
Introduce a new SwitchSmiTable bytecode for generators, which does a
table lookup for the accumulator value in a jump table stored in the
constant array pool. This removes the if-else chains at resumable
function/loop headers.
As a drive-by, add a scoped environment saving struct to the bytecode
graph builder.
Bug: v8:6351
Bug: v8:6366
Change-Id: I63be15a8b599d6684c7df19dedb8860562678fb0
Reviewed-on: https://chromium-review.googlesource.com/500271
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Georg Neis <neis@chromium.org>
Cr-Commit-Position: refs/heads/master@{#45314}
This CL implements a streaming decoder which takes the bytes
of a wasm module as an input, potentially split into multiple
chunks, and decodes them into segments. Each segment either
contains the payload of a whole section, or the code of a
single function. The goal is that the streaming decoder is
used for streaming compilation. That's where the interface
comes from, see
(https://cs.chromium.org/chromium/src/v8/include/v8.h?q=OnBytesReceived&sq=package:chromium&l=4060)
Error positions are not reported correctly at the moment. I
plan to do this in a separate CL.
Change-Id: I6e3df6a91945c7baec2dc4f5de2e5f47636083df
Reviewed-on: https://chromium-review.googlesource.com/471350
Commit-Queue: Andreas Haas <ahaas@chromium.org>
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Reviewed-by: Mircea Trofin <mtrofin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#45250}
That's cleaner than having every target depending on v8 include icu
itself.
BUG=none
R=machenbach@chromium.org
Change-Id: Icaa9e8670718664041a6efe2622366c89b733f81
Reviewed-on: https://chromium-review.googlesource.com/500127
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Jochen Eisinger <jochen@chromium.org>
Cr-Commit-Position: refs/heads/master@{#45196}
With this CL we share code among the wasm fuzzers which construct a
module and run it in the interpreter and as compiled code.The fuzzers
themselves only contain the code now which creates the module and the
parameters.
BUG=v8:6325
R=eholk@chromium.org
Change-Id: I1c2d8b013531c86cb27837f1b8ec89d2688c536b
Reviewed-on: https://chromium-review.googlesource.com/490048
Commit-Queue: Andreas Haas <ahaas@chromium.org>
Reviewed-by: Brad Nelson <bradnelson@chromium.org>
Cr-Commit-Position: refs/heads/master@{#45156}
This CL migrates the CPP builtin to CSA with fast paths for strings
that can be unpacked to direct one-byte strings. Short strings are
handled directly in CSA, others need to call into C for conversion.
Microbenchmarks for "abcd".toLowerCase() show speedups of 2.5x.
BUG=v8:6353,v8:6344
Review-Url: https://codereview.chromium.org/2859203002
Cr-Commit-Position: refs/heads/master@{#45141}
This flag generates false positives, since gcc inlines functions and
propagates constants, and then applies the check.
Drive-by: Refactor the checks that triggered the error to avoid
explicit casts.
R=jochen@chromium.org, machenbach@chromium.org
BUG=v8:6341
Change-Id: I86aebf402cbd2502ef17622a000a5bb777fd4b43
Reviewed-on: https://chromium-review.googlesource.com/494474
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Reviewed-by: Jochen Eisinger <jochen@chromium.org>
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#45096}
This reverts commit 7683df248a.
Reason for revert: doesn't help with gcc, so removing
Original change's description:
> Disable -Werror=attributes on gcc
>
> The warning triggers even if the attributes don't change - it's enough
> to declare them multiple times. Given that the other compilers don't
> complain, just disable the warning on gcc for now.
>
> R=jkummerow@chromium.org,mtrofin@chromium.org
> BUG=v8:6339
> NOTRY=true
>
> Change-Id: Ie0fcc4feeb8568d4ab74ac65f6887523f3cdcbf9
> Reviewed-on: https://chromium-review.googlesource.com/494106
> Commit-Queue: Michael Achenbach <machenbach@chromium.org>
> Reviewed-by: Mircea Trofin <mtrofin@chromium.org>
> Reviewed-by: Sathya Gunasekaran <gsathya@chromium.org>
> Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#45045}
TBR=jkummerow@chromium.org,machenbach@chromium.org,mtrofin@chromium.org,gsathya@chromium.org,jochen@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:6339
Change-Id: I581e4f0499ae0d7e3bc791fd6fa9988aabe64c5e
Reviewed-on: https://chromium-review.googlesource.com/494469
Reviewed-by: Jochen Eisinger <jochen@chromium.org>
Commit-Queue: Jochen Eisinger <jochen@chromium.org>
Cr-Commit-Position: refs/heads/master@{#45052}
The warning triggers even if the attributes don't change - it's enough
to declare them multiple times. Given that the other compilers don't
complain, just disable the warning on gcc for now.
R=jkummerow@chromium.org,mtrofin@chromium.org
BUG=v8:6339
NOTRY=true
Change-Id: Ie0fcc4feeb8568d4ab74ac65f6887523f3cdcbf9
Reviewed-on: https://chromium-review.googlesource.com/494106
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Reviewed-by: Mircea Trofin <mtrofin@chromium.org>
Reviewed-by: Sathya Gunasekaran <gsathya@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Cr-Commit-Position: refs/heads/master@{#45045}
This patch adds a concurrent marking deque that exposes the same interface
for the main thread as the existing marking deque.
The matching interface makes the concurrent marking deque a drop-in
replacement for the sequential marking deque without any change in
mark-compactor and incremental marker.
BUG=chromium:694255
Review-Url: https://codereview.chromium.org/2810893002
Cr-Commit-Position: refs/heads/master@{#45042}
Remains to port these fixes over to gyp.
R=machenbach@chromium.org, jkummerow@chromium.org, mstarzinger@chromium.org
BUG=v8:6325
Change-Id: I3bebbc6d0ec52fcb60e3d51acd27e616f51d3dbb
Reviewed-on: https://chromium-review.googlesource.com/490108
Commit-Queue: Jochen Eisinger <jochen@chromium.org>
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#45026}
This reverts commit 4968b2c4d1.
Reason for revert: Speculative revert for severe perf regression
https://bugs.chromium.org/p/chromium/issues/detail?id=716468#c3
Original change's description:
> [intl] Switch to using declared accessors
>
> This patch cleans up the Intl code by switching to using declared
> accessors, rather than embedder fields, for holding references to
> ICU objects. Additionally:
> - Rename classes to be more similar to how other classes are named
> - Make some unreachable paths into check-fails, rather than throwing
> JS exceptions
> - Move some macros from objects-inl.h into object-macros.h, to allow
> the implementation here to not touch objects.h
> - Some setup logic is moved from runtime-i18n.cc to i18n.cc.
>
> This patch leaves type tags as they are; a future patch should move
> from a special Intl type tagging system to object types as other system
> objects use. Future patches should also move more logic to i18n.cc
>
> BUG=v8:5402,v8:5751,v8:6057
> CQ_INCLUDE_TRYBOTS=master.tryserver.v8:v8_linux_noi18n_rel_ng
>
> Change-Id: Ia9cbb25cf8f52662e3deb15e64179d792c10842c
> Reviewed-on: https://chromium-review.googlesource.com/479651
> Commit-Queue: Daniel Ehrenberg <littledan@chromium.org>
> Reviewed-by: Adam Klein <adamk@chromium.org>
> Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#44804}
TBR=adamk@chromium.org,marja@chromium.org,mstarzinger@chromium.org,littledan@chromium.org,jwolfe@igalia.com
# Not skipping CQ checks because original CL landed > 1 day ago.
BUG=v8:5402,v8:5751,v8:6057
CQ_INCLUDE_TRYBOTS=master.tryserver.v8:v8_linux_noi18n_rel_ng
Change-Id: I7a45d7def1f1de0f21e3efb7de9b31f6bcfea46d
Reviewed-on: https://chromium-review.googlesource.com/490328
Reviewed-by: Daniel Ehrenberg <littledan@chromium.org>
Commit-Queue: Daniel Ehrenberg <littledan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#44992}
This patch adds a new interface called RootVisitor and changes the root
iteration functions to accept a RootVisitor instead of an ObjectVisitor.
Future CLs will change ObjectVisitor to provide the host object to all
visiting functions, which will bring it in sync with static visitors.
Having separate visitors for roots and objects removes ambiguity in
VisitPointers and reduces chances of forgetting to record slots.
This is intended as pure refactoring. All places that require behavior
change are marked with TODO and will addressed in future CLs.
BUG=chromium:709075
Review-Url: https://codereview.chromium.org/2801073006
Cr-Commit-Position: refs/heads/master@{#44852}
This header file is only used from tests.
Also, move the LoadStoreOpcodeOf method (only used in tests) from
wasm-opcodes.h to wasm-macro-gen.h.
R=ahaas@chromium.org
Change-Id: I8d4691be494b5c1fbe3084441329850930bad647
Reviewed-on: https://chromium-review.googlesource.com/486861
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Cr-Commit-Position: refs/heads/master@{#44845}
wasm-macro-gen.h is mainly used from tests, but LocalDeclEncoder is
also used from various other places.
This CL moves the LocalDeclEncoder to an own compilation unit. We want
to later move wasm-macro-gen.h to the tests folder.
It also refactors the LocalDeclEncoder to reuse the
LEBHelper::write_u32v and LEBHelper::sizeof_u32v methods instead of
reimplementing it.
R=ahaas@chromium.org
Change-Id: Ia4651436f0544578da7c1c43596d343571942e97
Reviewed-on: https://chromium-review.googlesource.com/486724
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#44838}
This patch cleans up the Intl code by switching to using declared
accessors, rather than embedder fields, for holding references to
ICU objects. Additionally:
- Rename classes to be more similar to how other classes are named
- Make some unreachable paths into check-fails, rather than throwing
JS exceptions
- Move some macros from objects-inl.h into object-macros.h, to allow
the implementation here to not touch objects.h
- Some setup logic is moved from runtime-i18n.cc to i18n.cc.
This patch leaves type tags as they are; a future patch should move
from a special Intl type tagging system to object types as other system
objects use. Future patches should also move more logic to i18n.cc
BUG=v8:5402,v8:5751,v8:6057
CQ_INCLUDE_TRYBOTS=master.tryserver.v8:v8_linux_noi18n_rel_ng
Change-Id: Ia9cbb25cf8f52662e3deb15e64179d792c10842c
Reviewed-on: https://chromium-review.googlesource.com/479651
Commit-Queue: Daniel Ehrenberg <littledan@chromium.org>
Reviewed-by: Adam Klein <adamk@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#44804}
- Split out code for Intl objects into src/objects/
- Rename i18n to intl (except for the name of the build flag)
- Use build system more broadly to turn on/off Intl code
- Delete a little bit of dead code
Bug: v8:5751
Change-Id: I41bf2825a5cb0df20824922b17c24cae637984da
Reviewed-on: https://chromium-review.googlesource.com/481284
Reviewed-by: Yang Guo <yangguo@chromium.org>
Reviewed-by: Adam Klein <adamk@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Marja Hölttä <marja@chromium.org>
Commit-Queue: Daniel Ehrenberg <littledan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#44801}
A lot of web sites around the world has hack which replaces native console.assert by function with fast return.
Current console.assert is slow because we need to run CPP builtin but we should enter this builtin iff condition is false or omitted.
BUG=v8:6175
R=ishell@chromium.org,dgozman@chromium.org
Review-Url: https://codereview.chromium.org/2828933002
Cr-Commit-Position: refs/heads/master@{#44752}
This patch retires runtime.js:
- Removes some dead code from runtime.js (ToPositiveInteger, ToIndex),
- Moves Array.prototype initialization to prologue.js
- Moves SpeciesConstructor to the only file that calls it (typedarray.js)
- Renames the remainder to reflect its only inhabitants ({Max,Min}Simple)
Change-Id: If9048a30c4f6b86396bfd647bb637b4175880fc3
Reviewed-on: https://chromium-review.googlesource.com/478579
Reviewed-by: Yang Guo <yangguo@chromium.org>
Commit-Queue: Adam Klein <adamk@chromium.org>
Cr-Commit-Position: refs/heads/master@{#44730}
What will we get:
- console would be included into snapshot and allow us to reduce time that we spent in contextCreated function (~5 times faster),
- it allows us to make further small improvement of console methods, e.g. we can implement super quick return from console.assert if first argument is true,
- console calls are ~ 15% faster.
CQ_INCLUDE_TRYBOTS=master.tryserver.blink:linux_trusty_blink_rel;master.tryserver.chromium.linux:linux_chromium_rel_ng
BUG=v8:6175
R=dgozman@chromium.org
Review-Url: https://codereview.chromium.org/2785293002
Cr-Original-Original-Original-Commit-Position: refs/heads/master@{#44353}
Committed: 55905f85d6
Review-Url: https://codereview.chromium.org/2785293002
Cr-Original-Original-Commit-Position: refs/heads/master@{#44355}
Committed: cc74ea0bc4
Review-Url: https://codereview.chromium.org/2785293002
Cr-Original-Commit-Position: refs/heads/master@{#44416}
Committed: f5dc738cda
Review-Url: https://codereview.chromium.org/2785293002
Cr-Commit-Position: refs/heads/master@{#44702}
Change-Id: I9973858f2596a9bc4d66afbb26612189fbded7f3
Reviewed-on: https://chromium-review.googlesource.com/478413
Reviewed-by: Caitlin Potter <caitp@igalia.com>
Commit-Queue: Adam Klein <adamk@chromium.org>
Cr-Commit-Position: refs/heads/master@{#44658}
This reverts commit cc047635ff.
The CL was reverted due to a missing DEPS mirror.
Original issue's description:
> ARM64: Add NEON support
>
> Add assembler, disassembler and simulator support for NEON in the ARM64 backend.
>
> BUG=
>
> Review-Url: https://codereview.chromium.org/2622643005
> Cr-Commit-Position: refs/heads/master@{#44306}
BUG=
Review-Url: https://codereview.chromium.org/2812573003
Cr-Commit-Position: refs/heads/master@{#44652}
The BytecodePipeline is no longer used by any optimizers, so remove it and
connect the BytecodeArrayBuilder directly to the BytecodeWriter.
Also remove some functions from BytecodeNode which are no longer used.
BUG=v8:6194
Change-Id: Id2ec94ff1d4db41b108a778100459283fbb2256c
Reviewed-on: https://chromium-review.googlesource.com/471528
Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Commit-Queue: Ross McIlroy <rmcilroy@chromium.org>
Cr-Commit-Position: refs/heads/master@{#44619}
Since --trace-ignition now has to be enabled at snapshot-building time,
this patch adds it as a gn build option.
Change-Id: I5d55339a7be7eef4e1f9da46ec44fbfd431325b7
Reviewed-on: https://chromium-review.googlesource.com/474905
Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Cr-Commit-Position: refs/heads/master@{#44583}
Move dead bytecode elimination from a seperate bytecode pipeline optimizer
into the BytecodeArrayWriter. This removes the last bytecode pipeline
optimizer, which means we can remove the Bytecode pipeline which,
which should increase compile speed.
BUG=v8:6194
Change-Id: I47fb3c3463b2b8a92e02cf7a6b608683fcfa5261
Reviewed-on: https://chromium-review.googlesource.com/471407
Commit-Queue: Ross McIlroy <rmcilroy@chromium.org>
Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Cr-Commit-Position: refs/heads/master@{#44568}
All the optimizations have now been moved to either the BytecodeGenerator
or the BytecodeArrayWriter/Builder.
BUG=v8:6194
Change-Id: Ie5c5d55e824c94ffb503af376c72bc64ad1f6f81
Reviewed-on: https://chromium-review.googlesource.com/469349
Commit-Queue: Ross McIlroy <rmcilroy@chromium.org>
Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#44564}
and out of the main library. This saves about 5% of binary size
(800KB on x64, 373KB on android_arm).
Only the GN build is supported; the GYP build is maintained working
but does not support the feature.
Previously landed as 4782bc0df8 / r44412.
BUG=v8:6055
CQ_INCLUDE_TRYBOTS=master.tryserver.v8:v8_linux_nosnap_rel;
Review-Url: https://codereview.chromium.org/2760233005
Cr-Commit-Position: refs/heads/master@{#44489}
Reason for revert:
I think that this CL breaks chromium compilation on windows with clang (). All other CLs in the list looks trivial and don't change test/unittest/BUILD.gn.
[42456/47924] CXX obj/v8/test/unittests/unittests/value-serializer-unittest.obj
[42457/47924] LINK unittests.exe unittests.exe.pdb
FAILED: unittests.exe unittests.exe.pdb
E:/b/depot_tools/python276_bin/python.exe ../../build/toolchain/win/tool_wrapper.py link-wrapper environment.x64 False link.exe /nologo /OUT:./unittests.exe /PDB:./unittests.exe.pdb @./unittests.exe.rsp
bitmap-unittest.obj : error LNK2019: unresolved external symbol "public: void __cdecl v8::internal::List<class v8::internal::AllocationObserver *,class v8::internal::FreeStoreAllocationPolicy>::Add(class v8::internal::AllocationObserver * const &,class v8::internal::FreeStoreAllocationPolicy)" (?Add@?$List@PEAVAllocationObserver@internal@v8@@VFreeStoreAllocationPolicy@23@@internal@v8@@QEAAXAEBQEAVAllocationObserver@23@VFreeStoreAllocationPolicy@23@@Z) referenced in function "public: virtual void __cdecl v8::internal::Space::AddAllocationObserver(class v8::internal::AllocationObserver *)" (?AddAllocationObserver@Space@internal@v8@@UEAAXPEAVAllocationObserver@23@@Z)
slot-set-unittest.obj : error LNK2001: unresolved external symbol "public: void __cdecl v8::internal::List<class v8::internal::AllocationObserver *,class v8::internal::FreeStoreAllocationPolicy>::Add(class v8::internal::AllocationObserver * const &,class v8::internal::FreeStoreAllocationPolicy)" (?Add@?$List@PEAVAllocationObserver@internal@v8@@VFreeStoreAllocationPolicy@23@@internal@v8@@QEAAXAEBQEAVAllocationObserver@23@VFreeStoreAllocationPolicy@23@@Z)
bitmap-unittest.obj : error LNK2019: unresolved external symbol "public: bool __cdecl v8::internal::List<class v8::internal::AllocationObserver *,class v8::internal::FreeStoreAllocationPolicy>::RemoveElement(class v8::internal::AllocationObserver * const &)" (?RemoveElement@?$List@PEAVAllocationObserver@internal@v8@@VFreeStoreAllocationPolicy@23@@internal@v8@@QEAA_NAEBQEAVAllocationObserver@23@@Z) referenced in function "public: virtual void __cdecl v8::internal::Space::RemoveAllocationObserver(class v8::internal::AllocationObserver *)" (?RemoveAllocationObserver@Space@internal@v8@@UEAAXPEAVAllocationObserver@23@@Z)
slot-set-unittest.obj : error LNK2001: unresolved external symbol "public: bool __cdecl v8::internal::List<class v8::internal::AllocationObserver *,class v8::internal::FreeStoreAllocationPolicy>::RemoveElement(class v8::internal::AllocationObserver * const &)" (?RemoveElement@?$List@PEAVAllocationObserver@internal@v8@@VFreeStoreAllocationPolicy@23@@internal@v8@@QEAA_NAEBQEAVAllocationObserver@23@@Z)
./unittests.exe : fatal error LNK1120: 2 unresolved externals
Original issue's description:
> [snapshot] Move builtins generation into mksnapshot
>
> and out of the main library. This saves about 5% of binary size
> (800KB on x64, 373KB on android_arm).
>
> Only the GN build is supported; the GYP build is maintained working
> but does not support the feature.
>
> BUG=v8:6055
> CQ_INCLUDE_TRYBOTS=master.tryserver.v8:v8_linux_nosnap_rel;
>
> Review-Url: https://codereview.chromium.org/2760233005
> Cr-Commit-Position: refs/heads/master@{#44412}
> Committed: 4782bc0df8TBR=jgruber@chromium.org,rmcilroy@chromium.org,machenbach@chromium.org,jkummerow@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:6055
Review-Url: https://codereview.chromium.org/2803903002
Cr-Commit-Position: refs/heads/master@{#44422}
What will we get:
- console would be included into snapshot and allow us to reduce time that we spent in contextCreated function (~5 times faster),
- it allows us to make further small improvement of console methods, e.g. we can implement super quick return from console.assert if first argument is true,
- console calls are ~ 15% faster.
BUG=v8:6175
R=dgozman@chromium.org
Review-Url: https://codereview.chromium.org/2785293002
Cr-Original-Original-Commit-Position: refs/heads/master@{#44353}
Committed: 55905f85d6
Review-Url: https://codereview.chromium.org/2785293002
Cr-Original-Commit-Position: refs/heads/master@{#44355}
Committed: cc74ea0bc4
Review-Url: https://codereview.chromium.org/2785293002
Cr-Commit-Position: refs/heads/master@{#44416}
and out of the main library. This saves about 5% of binary size
(800KB on x64, 373KB on android_arm).
Only the GN build is supported; the GYP build is maintained working
but does not support the feature.
BUG=v8:6055
CQ_INCLUDE_TRYBOTS=master.tryserver.v8:v8_linux_nosnap_rel;
Review-Url: https://codereview.chromium.org/2760233005
Cr-Commit-Position: refs/heads/master@{#44412}
Reason for revert:
http://crbug.com/v8/6198
Original issue's description:
> [inspector] move console to builtins
>
> What will we get:
> - console would be included into snapshot and allow us to reduce time that we spent in contextCreated function (~5 times faster),
> - it allows us to make further small improvement of console methods, e.g. we can implement super quick return from console.assert if first argument is true,
> - console calls are ~ 15% faster.
>
> BUG=v8:6175
> R=dgozman@chromium.org
>
> Review-Url: https://codereview.chromium.org/2785293002
> Cr-Original-Commit-Position: refs/heads/master@{#44353}
> Committed: 55905f85d6
> Review-Url: https://codereview.chromium.org/2785293002
> Cr-Commit-Position: refs/heads/master@{#44355}
> Committed: cc74ea0bc4TBR=dgozman@chromium.org,kozyatinskiy@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:6175
Review-Url: https://codereview.chromium.org/2790343002
Cr-Commit-Position: refs/heads/master@{#44358}
What will we get:
- console would be included into snapshot and allow us to reduce time that we spent in contextCreated function (~5 times faster),
- it allows us to make further small improvement of console methods, e.g. we can implement super quick return from console.assert if first argument is true,
- console calls are ~ 15% faster.
BUG=v8:6175
R=dgozman@chromium.org
Review-Url: https://codereview.chromium.org/2785293002
Cr-Original-Commit-Position: refs/heads/master@{#44353}
Committed: 55905f85d6
Review-Url: https://codereview.chromium.org/2785293002
Cr-Commit-Position: refs/heads/master@{#44355}
Reason for revert:
console.toString() should return "[object Object]"
Original issue's description:
> [inspector] move console to builtins
>
> What will we get:
> - console would be included into snapshot and allow us to reduce time that we spent in contextCreated function (~5 times faster),
> - it allows us to make further small improvement of console methods, e.g. we can implement super quick return from console.assert if first argument is true,
> - console calls are ~ 15% faster.
>
> BUG=v8:6175
> R=dgozman@chromium.org
>
> Review-Url: https://codereview.chromium.org/2785293002
> Cr-Commit-Position: refs/heads/master@{#44353}
> Committed: 55905f85d6TBR=dgozman@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:6175
Review-Url: https://codereview.chromium.org/2795003003
Cr-Commit-Position: refs/heads/master@{#44354}
What will we get:
- console would be included into snapshot and allow us to reduce time that we spent in contextCreated function (~5 times faster),
- it allows us to make further small improvement of console methods, e.g. we can implement super quick return from console.assert if first argument is true,
- console calls are ~ 15% faster.
BUG=v8:6175
R=dgozman@chromium.org
Review-Url: https://codereview.chromium.org/2785293002
Cr-Commit-Position: refs/heads/master@{#44353}
This reverts commit 4506382dce.
We don't allow DEPS'ing things outside googlesource. This requires a
mirror. Also .gitignore entry is missing.
NOTRY=true
NOTREECHECKS=true
NOPRESUBMIT=true
TBR=bmeurer@chromium.org
Review-Url: https://codereview.chromium.org/2785183005
Cr-Commit-Position: refs/heads/master@{#44307}
Add assembler, disassembler and simulator support for NEON in the ARM64 backend.
BUG=
Review-Url: https://codereview.chromium.org/2622643005
Cr-Commit-Position: refs/heads/master@{#44306}
The source set only contained a header file, which caused problems
when compiling a static library with VS.
R=machenbach@chromium.org
BUG=v8:6158
Change-Id: I3eed4a888e72cf6a2917190e4a1db7b38006cd0c
Reviewed-on: https://chromium-review.googlesource.com/463027
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Andreas Haas <ahaas@chromium.org>
Cr-Commit-Position: refs/heads/master@{#44263}
- Introduce new struct AsyncGeneratorRequest, which holds
information pertinent to resuming execution of an
AsyncGenerator, such as the Promise associated with the async
generator request. It is intended to be used as a singly
linked list, and holds a pointer to the next item in te queue.
- Introduce JSAsyncGeneratorObject (subclass of
JSGeneratorObject), which includes several new internal fields
(`queue` which contains a singly linked list of
AsyncGeneratorRequest objects, and `await_input` which
contains the sent value from an Await expression (This is
necessary to prevent function.sent (used by yield*) from
having the sent value observably overwritten during
execution).
- Modify SuspendGenerator to accept a set of Flags, which
indicate whether the suspend is for a Yield or Await, and
whether it takes place on an async generator or ES6
generator.
- Introduce interpreter intrinsics and TF intrinsic lowering for
accessing the await input of an async generator
- Modify the JSGeneratorStore operator to understand whether or
not it's suspending for a normal yield, or an AsyncGenerator
Await. This ensures appropriate registers are stored.
- Add versions of ResumeGeneratorTrampoline which store the
input value in a different field depending on wether it's an
AsyncGenerator Await resume, or an ordinary resume. Also modifies
whether debug code will assert that the generator object is a
JSGeneratorObject or a JSAsyncGeneratorObject depending on the
resume type.
BUG=v8:5855
R=bmeurer@chromium.org, rmcilroy@chromium.org, jgruber@chromium.org,
littledan@chromium.org, neis@chromium.orgTBR=marja@chromium.org
Change-Id: I9d58df1d344465fc937fe7eed322424204497187
Reviewed-on: https://chromium-review.googlesource.com/446961
Commit-Queue: Caitlin Potter <caitp@igalia.com>
Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
Reviewed-by: Hannes Payer <hpayer@chromium.org>
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#44240}
Move builtin definitions (i.e. BUILTIN_LIST and family) to a separate header
in preparation for auto-generation of TFS interface descriptors.
BUG=v8:6116
Review-Url: https://codereview.chromium.org/2784793002
Cr-Commit-Position: refs/heads/master@{#44221}
Add the --fast-validate-asm option, which directs asm.js code
to a new parser + validator + wasm code generator,
which is then compiled using WebAssembly.
This parser takes advantage of asm.js structure to linearly parse
asm.js code, keeping a scope stack + a few additional tables to track
varibles.
BUG=v8:6090
BUG=v8:4203
R=mstarzinger@chromium.org,marja@chromium.org,vogelheim@chromium.org,kschimpf@chromium.org
Review-Url: https://codereview.chromium.org/2757693003
Cr-Commit-Position: refs/heads/master@{#44084}
Move ICU case conversion utility functions to a common location.
BUG=v8:5751
CQ_INCLUDE_TRYBOTS=master.tryserver.v8:v8_linux_noi18n_rel_ng
Review-Url: https://codereview.chromium.org/2728763006
Cr-Commit-Position: refs/heads/master@{#44050}
This CL also
1) turns (Add/Subtract)WithFeedbackStub into builtins
2) makes interpreter use BinaryOpAssembler directly
3) drops unused (Multipy/Divide/Modulus)WithFeedbackStubs
BUG=v8:6116
Change-Id: I994aba6442f173535c13dfbaaafae1033de3f2ce
Reviewed-on: https://chromium-review.googlesource.com/458438
Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Commit-Queue: Igor Sheludko <ishell@chromium.org>
Cr-Commit-Position: refs/heads/master@{#44042}
... which is a TF_BUILTIN-like wrapper for defining code stubs.
BUG=v8:6116
Change-Id: Iad599dfc71a50c5082d9e3fba2a7b553b9912207
Reviewed-on: https://chromium-review.googlesource.com/458476
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Commit-Queue: Igor Sheludko <ishell@chromium.org>
Cr-Commit-Position: refs/heads/master@{#44022}
This frees up the InterpreterAssembler for no longer being linked
into the main library.
BUG=v8:6055
Review-Url: https://codereview.chromium.org/2759093004
Cr-Commit-Position: refs/heads/master@{#43979}
as InterpreterGenerator. This is in preparation for no longer including
the bytecode handler generation code in the main library.
BUG=v8:6055
Review-Url: https://codereview.chromium.org/2765433003
Cr-Commit-Position: refs/heads/master@{#43949}
This is a first bulk of changes.
BUG=v8:6116
Change-Id: I9308129bd032c0bf5b60c8e0413ee2cb710891ea
Reviewed-on: https://chromium-review.googlesource.com/456556
Commit-Queue: Igor Sheludko <ishell@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Cr-Commit-Position: refs/heads/master@{#43930}
Default to the chromium-internal build config (instead of the more
permissive no_chromium_code config).
BUG=v8:5878
Review-Url: https://codereview.chromium.org/2758563002
Cr-Commit-Position: refs/heads/master@{#43909}
Adding a custom lexer for asm.js parsing.
It takes advantage of a number of asm.js properties to simply things:
* Assumes 'use asm' is the only string.
* Does not handle unicode for now (tools don't emit it).
* Combines global + local string table with lexer.
R=marja@chromium.org,vogelheim@chromium.org,kschimpf@chromium.org
BUG=v8:4203
BUG=v8:6090
Review-Url: https://codereview.chromium.org/2751693002
Cr-Commit-Position: refs/heads/master@{#43874}
The current incarncation of DuplicateFinder does work that
AstValueFactory already does. All that remains is that
DuplicateFinder wraps a container.
Adding const-ness changes were necessary to have IsDuplicateSymbol
be const.
BUG=v8:6092
Change-Id: I8081cfeef363717405d5b6325e290fe7725390dc
Reviewed-on: https://chromium-review.googlesource.com/456317
Commit-Queue: Marja Hölttä <marja@chromium.org>
Commit-Queue: Daniel Vogelheim <vogelheim@chromium.org>
Reviewed-by: Marja Hölttä <marja@chromium.org>
Cr-Commit-Position: refs/heads/master@{#43872}
This is another step towards making calls to builtins more convenient.
Builtins::CallableFor is an automatically generated Callable accessor for TFS
builtins (whereas previously we had to manually add an accessor to
code-factory.{h,cc}).
CSA::CallBuiltin is a convenience wrapper around CallStub for TFS builtins.
We can begin removing accessors for TFS builtins from CodeFactory in an
upcoming commit.
BUG=v8:5737
Review-Url: https://codereview.chromium.org/2752213002
Cr-Commit-Position: refs/heads/master@{#43865}
This is in preparation for linking the former only into mksnapshot.
Just shuffling code around, no changes in functionality.
BUG=v8:6055
Review-Url: https://codereview.chromium.org/2752143004
Cr-Commit-Position: refs/heads/master@{#43858}
When a FunctionEntryHook parameter was passed to isolate creation,
we ignored any existing snapshots anyway. Since the ability to
bootstrap from scratch will be removed from snapshot builds, the
FunctionEntryHook feature must depend on a no-snapshot build.
BUG=v8:6055
Review-Url: https://codereview.chromium.org/2733203002
Cr-Commit-Position: refs/heads/master@{#43779}
As the code isn't used, but would have to be ported from hand-written
assembly to CodeStubAssembler anyways, I propose to remove it and
restore it if we decide that we actually need it.
R=vogelheim@chromium.org
BUG=
Change-Id: Iffd7fc6ec534b1dd7a9144da900424355c8a7a02
Reviewed-on: https://chromium-review.googlesource.com/453461
Commit-Queue: Jochen Eisinger <jochen@chromium.org>
Reviewed-by: Daniel Vogelheim <vogelheim@chromium.org>
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#43763}
This is basically the minimum viable signal handler for Wasm bounds checks.
It includes the TLS check and the fine grained instructions checks. These
two checks provide most of the safety for the signal handler. Future CLs will
add code range and data range checks for more robustness.
The trap handling code and data structures are all in src/trap-handler, with
the code that actually runs in the signal handler confined to
src/trap-handler/signal-handler.cc.
This changes adds a new V8 API that the embedder should call from a signal
handler that will give V8 the chance to handle the fault first. For hosts that
do not want to implement their own signal handler, we include the option to
install a simple one. This simple handler is also used for the tests.
When a Wasm module is instantiated, information about each function is passed
to the trap handler, which is used to classify faults. These are removed during
the instance finalizer.
Several future enhancements are planned before turning this on by default.
Obviously, the additional checks will be added to MaybeHandleFault. We are
also planning to add a two-level CodeObjectData table that is grouped by
isolates to make cleanup easier and also reduce potential for contending on
a single data structure.
BUG= https://bugs.chromium.org/p/v8/issues/detail?id=5277
Review-Url: https://codereview.chromium.org/2371833007
Cr-Original-Original-Commit-Position: refs/heads/master@{#43523}
Committed: a5af7fe9ee
Review-Url: https://codereview.chromium.org/2371833007
Cr-Original-Commit-Position: refs/heads/master@{#43755}
Committed: 338622d7ca
Review-Url: https://codereview.chromium.org/2371833007
Cr-Commit-Position: refs/heads/master@{#43759}
This reverts the previous revert, commit
5a04f4fd68.
Previously reverted changes:
> Revert "[SAB] Move Atomics builtins to C++"
>
> This reverts commit 2b9840d86f.
>
> Revert "[SAB] Remove unreachable Uint8Clamped atomics paths"
>
> This reverts commit d1160fb14f.
>
> Revert "Remove tiny unit test for MinSimple/MaxSimple"
>
> This reverts commit 837760ecb7.
>
> Revert "Remove infrastructure for experimental JS natives"
>
> This reverts commit 8cfe45b6f1.
These changes were reverted to improve a perf regression on a Chrome
bot. Since then, the regression has reappeared, then disappeared again
all from seemingly unrelated changes.
BUG=v8:6033
TBR=adamk@chromium.org,hpayer@chromium.org,yangguo@chromium.org
Review-Url: https://codereview.chromium.org/2732213005
Cr-Commit-Position: refs/heads/master@{#43758}
Reason for revert:
ASAN breakage, such as https://build.chromium.org/p/client.v8/builders/V8%20Linux64%20ASAN/builds/19111/steps/Check/logs/grow-memory
Original issue's description:
> [wasm] Initial signal handler
>
> This is basically the minimum viable signal handler for Wasm bounds checks.
> It includes the TLS check and the fine grained instructions checks. These
> two checks provide most of the safety for the signal handler. Future CLs will
> add code range and data range checks for more robustness.
>
> The trap handling code and data structures are all in src/trap-handler, with
> the code that actually runs in the signal handler confined to
> src/trap-handler/signal-handler.cc.
>
> This changes adds a new V8 API that the embedder should call from a signal
> handler that will give V8 the chance to handle the fault first. For hosts that
> do not want to implement their own signal handler, we include the option to
> install a simple one. This simple handler is also used for the tests.
>
> When a Wasm module is instantiated, information about each function is passed
> to the trap handler, which is used to classify faults. These are removed during
> the instance finalizer.
>
> Several future enhancements are planned before turning this on by default.
> Obviously, the additional checks will be added to MaybeHandleFault. We are
> also planning to add a two-level CodeObjectData table that is grouped by
> isolates to make cleanup easier and also reduce potential for contending on
> a single data structure.
>
> BUG= https://bugs.chromium.org/p/v8/issues/detail?id=5277
>
> Review-Url: https://codereview.chromium.org/2371833007
> Cr-Original-Commit-Position: refs/heads/master@{#43523}
> Committed: a5af7fe9ee
> Review-Url: https://codereview.chromium.org/2371833007
> Cr-Commit-Position: refs/heads/master@{#43755}
> Committed: 338622d7caTBR=ahaas@chromium.org,bradnelson@google.com,hpayer@chromium.org,jochen@chromium.org,mark@chromium.org,mseaborn@chromium.org,titzer@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG= https://bugs.chromium.org/p/v8/issues/detail?id=5277
Review-Url: https://codereview.chromium.org/2744383002
Cr-Commit-Position: refs/heads/master@{#43757}
This is basically the minimum viable signal handler for Wasm bounds checks.
It includes the TLS check and the fine grained instructions checks. These
two checks provide most of the safety for the signal handler. Future CLs will
add code range and data range checks for more robustness.
The trap handling code and data structures are all in src/trap-handler, with
the code that actually runs in the signal handler confined to
src/trap-handler/signal-handler.cc.
This changes adds a new V8 API that the embedder should call from a signal
handler that will give V8 the chance to handle the fault first. For hosts that
do not want to implement their own signal handler, we include the option to
install a simple one. This simple handler is also used for the tests.
When a Wasm module is instantiated, information about each function is passed
to the trap handler, which is used to classify faults. These are removed during
the instance finalizer.
Several future enhancements are planned before turning this on by default.
Obviously, the additional checks will be added to MaybeHandleFault. We are
also planning to add a two-level CodeObjectData table that is grouped by
isolates to make cleanup easier and also reduce potential for contending on
a single data structure.
BUG= https://bugs.chromium.org/p/v8/issues/detail?id=5277
Review-Url: https://codereview.chromium.org/2371833007
Cr-Original-Commit-Position: refs/heads/master@{#43523}
Committed: a5af7fe9ee
Review-Url: https://codereview.chromium.org/2371833007
Cr-Commit-Position: refs/heads/master@{#43755}
Otherwise, v8 embedders need to depend on targets in src.
BUG=chromium:688155
Change-Id: Idea90d8f550cd4d0141b92a7bdd18f4df664d11b
Reviewed-on: https://chromium-review.googlesource.com/447845
Reviewed-by: Marja Hölttä <marja@chromium.org>
Commit-Queue: Daniel Cheng <dcheng@chromium.org>
Cr-Commit-Position: refs/heads/master@{#43631}
This patch adds a trivial ConcurrentMarking class that can start
background tasks.
BUG=chromium:694255
Review-Url: https://codereview.chromium.org/2728363002
Cr-Commit-Position: refs/heads/master@{#43615}
This refactoring is preparatory work to enable ICU to be the backend
for timezone information rather than system calls. In the process, a
bit of code duplication that was inserted in the Solaris port patch is
eliminated here among modern POSIX backends.
One possible performance downside of this patch is that it introduces
a virtual method call for operations which were previously not virtual
methods. However, a couple factors mitigate this effect:
- The DateCache minimizes the need for calls into the TimezoneCache
- These calls were already not very high performance, as they included
a system call which requires an RPC to get out of the sandbox, and
they are surrounded by C++ builtins, which require a JS to C++
transition.
- A future transition to ICU, enabled by this refactoring, may improve
performance by eliminating the system call.
BUG=v8:6031
Review-Url: https://codereview.chromium.org/2731463003
Cr-Commit-Position: refs/heads/master@{#43588}
Reason for revert:
Breaks tree, i.e. https://build.chromium.org/p/client.v8/builders/V8%20Linux64%20ASAN/builds/18928/steps/Check/logs/grow-memory
Original issue's description:
> [wasm] Initial signal handler
>
> This is basically the minimum viable signal handler for Wasm bounds checks.
> It includes the TLS check and the fine grained instructions checks. These
> two checks provide most of the safety for the signal handler. Future CLs will
> add code range and data range checks for more robustness.
>
> The trap handling code and data structures are all in src/trap-handler, with
> the code that actually runs in the signal handler confined to
> src/trap-handler/signal-handler.cc.
>
> This changes adds a new V8 API that the embedder should call from a signal
> handler that will give V8 the chance to handle the fault first. For hosts that
> do not want to implement their own signal handler, we include the option to
> install a simple one. This simple handler is also used for the tests.
>
> When a Wasm module is instantiated, information about each function is passed
> to the trap handler, which is used to classify faults. These are removed during
> the instance finalizer.
>
> Several future enhancements are planned before turning this on by default.
> Obviously, the additional checks will be added to MaybeHandleFault. We are
> also planning to add a two-level CodeObjectData table that is grouped by
> isolates to make cleanup easier and also reduce potential for contending on
> a single data structure.
>
> BUG= https://bugs.chromium.org/p/v8/issues/detail?id=5277
>
> Review-Url: https://codereview.chromium.org/2371833007
> Cr-Commit-Position: refs/heads/master@{#43523}
> Committed: a5af7fe9eeTBR=ahaas@chromium.org,bradnelson@google.com,hpayer@chromium.org,jochen@chromium.org,mark@chromium.org,mseaborn@chromium.org,titzer@chromium.org,eholk@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG= https://bugs.chromium.org/p/v8/issues/detail?id=5277
Review-Url: https://codereview.chromium.org/2723133003
Cr-Commit-Position: refs/heads/master@{#43525}
This is basically the minimum viable signal handler for Wasm bounds checks.
It includes the TLS check and the fine grained instructions checks. These
two checks provide most of the safety for the signal handler. Future CLs will
add code range and data range checks for more robustness.
The trap handling code and data structures are all in src/trap-handler, with
the code that actually runs in the signal handler confined to
src/trap-handler/signal-handler.cc.
This changes adds a new V8 API that the embedder should call from a signal
handler that will give V8 the chance to handle the fault first. For hosts that
do not want to implement their own signal handler, we include the option to
install a simple one. This simple handler is also used for the tests.
When a Wasm module is instantiated, information about each function is passed
to the trap handler, which is used to classify faults. These are removed during
the instance finalizer.
Several future enhancements are planned before turning this on by default.
Obviously, the additional checks will be added to MaybeHandleFault. We are
also planning to add a two-level CodeObjectData table that is grouped by
isolates to make cleanup easier and also reduce potential for contending on
a single data structure.
BUG= https://bugs.chromium.org/p/v8/issues/detail?id=5277
Review-Url: https://codereview.chromium.org/2371833007
Cr-Commit-Position: refs/heads/master@{#43523}
This will be useful for sharing the implementation with
SharedArrayBuffer.prototype.slice.
BUG=v8:5897
Review-Url: https://codereview.chromium.org/2697013009
Cr-Commit-Position: refs/heads/master@{#43503}
perf regression. See crbug.com/695653 for more info.
Revert "[SAB] Move Atomics builtins to C++"
This reverts commit 2b9840d86f.
Revert "[SAB] Remove unreachable Uint8Clamped atomics paths"
This reverts commit d1160fb14f.
Revert "Remove tiny unit test for MinSimple/MaxSimple"
This reverts commit 837760ecb7.
Revert "Remove infrastructure for experimental JS natives"
This reverts commit 8cfe45b6f1.
BUG=695653
TBR=hablich@chromium.org
Review-Url: https://codereview.chromium.org/2715223003
Cr-Commit-Position: refs/heads/master@{#43462}
Now that no harmony-flagged features are implemented in experimental
JS, most of this is simply dead code.
As PostExperimentals() is no longer needed, I also removed the use of
Import() in the debug context, allowing the deletion of PostDebug()
along with PostExperimentals(); cleanup code is moved to the
end of PostNatives.
Also gets rid of some longer-dead code in prologue.js related to
TypedArrays, and some duplicate code for setting up SharedArrayBuffer
builtins.
Review-Url: https://codereview.chromium.org/2705293004
Cr-Commit-Position: refs/heads/master@{#43418}
This is a preliminary cleanup necessary for the actual fix of the associated issue.
BUG=chromium:688734
Change-Id: Iecd39ed4cef34c6cc5d9652c5569e048f0db46af
Reviewed-on: https://chromium-review.googlesource.com/446341
Commit-Queue: Igor Sheludko <ishell@chromium.org>
Reviewed-by: Igor Sheludko <ishell@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Cr-Commit-Position: refs/heads/master@{#43410}
Native resources allocated by v8, as internal implementation detail,
and held by a Foreign object, must be released when the Isolate is
torn down. Example: wasm::WasmModule allocated by wasm compile, and
held throughout the lifetime of the WebAssembly.Module object.
This change:
- Extends Managed<CppType> with a mechanism for doing just that
- Separates the role of Managed<CppType> to be strictly an owner of
the lifetime of the native resource. For cases where that's not
desirable, we can polymorphically use Foregin.
- moves managed.h out of wasm, since it's not wasm-specific.
BUG=680065
Review-Url: https://codereview.chromium.org/2676513008
Cr-Commit-Position: refs/heads/master@{#43350}
This patch refactors the Atomics builtins so that they are implemented
as C++ builtins rather than experimental JS builtins. Previously, each
of these functions called out to a runtime function, so no significant
change in performance is anticipated. The goal of this patch is to
remove the last user of experimental JS builtins so that the mechanism
can be removed, for performance reasons. The patch includes a drive-by
fix of a check-fail. For the most part, the patch is just moving code
without modification from runtime-atomics.cc to
builtins-sharedarraybuffer.cc .
BUG=v8:5880
Review-Url: https://codereview.chromium.org/2698813004
Cr-Commit-Position: refs/heads/master@{#43335}
All patching logic is now bundled in one compilation unit.
The CodeSpecialization object is set up by all relocation and patching
that should be applied, and then be run on individual code objects or
the whole instance in one go. We hence only need to iterate all
relocation tables exactly once at instantiation.
Also, we do not patch contexts any more since we do not embed them in
generated code any more.
R=titzer@chromium.org
BUG=v8:5991
Review-Url: https://codereview.chromium.org/2696143006
Cr-Commit-Position: refs/heads/master@{#43324}
This is the beginning of a new fuzzer that generates
correct-by-construction Wasm modules. This should allow us to better
exercise the compiler and correctness aspects of fuzzing. It is based off
of ahaas' original Wasm fuzzer.
At the moment, it can generate expressions made up of most binops, and
also nested blocks with unconditional breaks. Future CLs will add
additional constructs, such as br_if, loops, memory access, etc.
The way the fuzzer works is that it starts with an array of arbitrary
data provided by libfuzzer. It uses the data to generate an expression.
Care is taken to make use of the entire string. Basically, the
generator has a bunch of grammar-like rules for how to construct an
expression of a given type. For example, an i32 can be made by adding
two other i32s, or by wrapping an i64. The process then continues
recursively until all the data is consumed.
We generate an expression from a slice of data as follows:
* If the slice is less than or equal to the size of the type (e.g. 4
bytes for i32), then it will emit the entire slice as a constant.
* Otherwise, it will consume the first 4 bytes of the slice and use
this to select which rule to apply. Each rule then consumes the
remainder of the slice in an appropriate way. For example:
* Unary ops use the remainder of the slice to generate the argument.
* Binary ops consume another four bytes and mod this with the length
of the remaining slice to split the slice into two parts. Each of
these subslices are then used to generate one of the arguments to
the binop.
* Blocks are basically like a unary op, but a stack of block types is
maintained to facilitate branches. For blocks that end in a break,
the first four bytes of a slice are used to select the break depth
and the stack determines what type of expression to generate.
The goal is that once this generator is complete, it will provide a one
to one mapping between binary strings and valid Wasm modules.
Review-Url: https://codereview.chromium.org/2658723006
Cr-Commit-Position: refs/heads/master@{#43289}
Instead of placing a runtime call to StackGuard in the compiled wasm
code, we just call the builtin, which is cheaper. By passing Smi::kZero
as context, we save even more code space and avoid embedding the
context in the code.
The WasmStackGuard builtin then calls the new WasmStackGuard runtime
function, which gets the context from the instance attached to the
calling wasm code, and then does the usual StackGuard logic.
For the unity benchmark in asm-wasm mode, generated code size reduces
from 63.0 to 61.6 MB (-2.1%).
R=titzer@chromium.org, ahaas@chromium.org, mstarzinger@chromium.org
Review-Url: https://codereview.chromium.org/2691993004
Cr-Commit-Position: refs/heads/master@{#43277}
These experimental natives previously only installed functions to the
appropriate parent. In this patch, the exports container is retained
so that the bootstrapper may install the functions instead. This
change is intended to reduce startup time. SharedArrayBuffer retains
some experimental natives exported from JS; this may be addressed
in a follow-on patch. The patch includes some minor cleanup of the
bootstrap process by removing "experimental exports", which was unused.
R=yangguo@chromium.org
BUG=v8:5880
CQ_INCLUDE_TRYBOTS=master.tryserver.v8:v8_linux_noi18n_rel_ng
Review-Url: https://codereview.chromium.org/2683083003
Cr-Commit-Position: refs/heads/master@{#43221}
This allows part of typed lowering that is solely based on type-hints to
run as part of the graph construction. The lowering in question does not
inspect types and hence doesn't require the typer to have run before. We
insert the speculative simplied-level operations in favor of the generic
JavaScript-level variants.
R=bmeurer@chromium.org
Change-Id: I5f0549fc1e4ff607622ee9059e6232a32f77db2e
Reviewed-on: https://chromium-review.googlesource.com/442584
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Commit-Queue: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#43208}
It's needed by code-stubs.h and it was defined in objects-inl.h.
That cannot work without violating the include rules.
BUG=v8:5402
R=mstarzinger@chromium.org
Change-Id: Icb84b97de5622df8cf76e9fc4d117982901c99d9
Reviewed-on: https://chromium-review.googlesource.com/441845
Commit-Queue: Marja Hölttä <marja@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#43195}
Windows won't create empty .lib files, and will subsequently fail to
find the library other rules expect
R=machenbach@chromium.org
BUG=
Change-Id: I8b848834a6957c2164f0eafc853587d39ccb6ca9
Reviewed-on: https://chromium-review.googlesource.com/440244
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Jochen Eisinger <jochen@chromium.org>
Cr-Commit-Position: refs/heads/master@{#43141}
Collect code coverage from the available invocation counts.
The granularity is at function level, and invocation counts may
be lost to GC.
Coverage::Collect returns a std::vector of Coverage::ScriptData.
Each ScriptData contains a script ID and a std::vector of
Coverage::RangeEntry.
Each RangeEntry consists of a end position and the invocation
count. The start position is implicit from the end position of
the previous RangeEntry, or 0 if it's the first RangeEntry.
R=jgruber@chromium.org
BUG=v8:5808
Review-Url: https://codereview.chromium.org/2689493002
Cr-Commit-Position: refs/heads/master@{#43072}
Includes the port of these three builtins: FastNewStrictArguments,
FastNewSloppyArguments and FastNewRestParameter. Also inline
the implementation of these into the corresponding interpreter
byte codes.
BUG=v8:5269
LOG=N
R=ishell@chromium.org, rmcilroy@chromium.org
Review-Url: https://codereview.chromium.org/2645743002
Cr-Commit-Position: refs/heads/master@{#43002}
... and TypeFeedbackMetadata to FeedbackMetadata.
BUG=
Change-Id: I2556d1c2a8f37b8cf3d532cc98d973b6dc7e9e6c
Reviewed-on: https://chromium-review.googlesource.com/439244
Commit-Queue: Igor Sheludko <ishell@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Michael Stanton <mvstanton@chromium.org>
Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Reviewed-by: Hannes Payer <hpayer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#42999}
This adds optional multi-architecture builds, allowing to compile
x86 and x64 in one build. The correctness fuzzer can be configured to
compare the two executables, e.g. to compare x86 to x64 run the
launcher with: --second-d8=clang_x86/d8 in an x64 build.
Configuring the executable's architecture is now simplified and
inferred from the gn build configuration.
Building for clusterfuzz has now a new canonical target that can be
used by the infrastructure (defaults to d8).
The clusterfuzz release builder is now defined to compile
multi-arch builds, which will have an effect as soon as the
infrastructure refers to the new clusterfuzz target.
BUG=chromium:673246
NOTRY=true
TBR=mstarzinger,jarin
Review-Url: https://codereview.chromium.org/2649133010
Cr-Commit-Position: refs/heads/master@{#42884}
This is essentially a port of http://crrev.com/2403003002 to TurboFan,
adding support for fast access to JSGlobalObject properties through the
current native contexts' JSGlobalProxy.
It's a slightly bigger change, since JSNativeContextSpecialization and
JSGlobalObjectSpecialization needs merging for this to work, as due to
different type feedback layout we cannot just turn a JSLoadNamed into
JSLoadGlobal operator (and same for JSStoreNamed vs. JSStoreGlobal).
This part of the change is mostly mechanical.
CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.linux:linux_chromium_rel_ng
R=ishell@chromium.org, jochen@chromium.org
BUG=chromium:634276,v8:5267
Review-Url: https://codereview.chromium.org/2664853002
Cr-Commit-Position: refs/heads/master@{#42805}
They have the same lifetime. It's a match!
Both structures are native context dependent and dealt with (creation,
clearing, gathering feedback) at the same time. By treating the spaces used
for literal boilerplates as feedback vector slots, we no longer have to keep
track of the materialized literal count elsewhere.
A follow-on CL removes even more parser infrastructure related to this count.
BUG=v8:5456
Review-Url: https://codereview.chromium.org/2655853010
Cr-Commit-Position: refs/heads/master@{#42771}
Chrome now uses the default_args system for specifying its own definitions of
these variables so the separate file in build_overrides is no longer necessary.
BUG=684096
Review-Url: https://codereview.chromium.org/2652263003
Cr-Commit-Position: refs/heads/master@{#42712}
The data produced at the moment only contains information about scope type +
positions, and only the most trivial tests pass.
Upcoming CLs will extend the data to contain information about variables (once
PreParser can produce it) and add more test cases.
BUG=v8:5516
Review-Url: https://codereview.chromium.org/2650703003
Cr-Commit-Position: refs/heads/master@{#42656}
We're converting the build_overrides system to the new default_args list of
overrides that can be listed in the toplevel .gn file. This will allow args to
be set on a per-repo basis.
This change conditionally adds the variables currently defined in
build_overrides/v8.gni to build args. This allows V8's build to be used in both
the new and old systems. Once all Chrome and pdfium have been updated, v8's
build overrides and the conditional checks around the new args can be removed.
BUG=684096
Review-Url: https://codereview.chromium.org/2654663003
Cr-Commit-Position: refs/heads/master@{#42639}
Reason for revert:
Blocks roll https://codereview.chromium.org/2647183002/
Original issue's description:
> [build] Introduce an embedder version string
>
> Sometimes, the embedder might want to merge a fix to an abandoned branch
> or to a supported branch but the fix is not relevant to Chromium.
> This adds a new version string that the embedder can set on compile time
> and that will be appended to the official V8 version.
> The separator must be provided in the string. For instance, to have a
> full version string like "5.5.372.37.custom.1", the embedder must set
> V8_EMBEDDER_STRING to ".custom.1".
>
> Related Node.js issue: https://github.com/nodejs/node/pull/9754
>
> BUG=v8:5740
> R=machenbach@chromium.org,hablich@chromium.com,ofrobots@google.com
>
> CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.linux:linux_chromium_rel_ng
>
> Review-Url: https://codereview.chromium.org/2619213002
> Cr-Original-Commit-Position: refs/heads/master@{#42175}
> Committed: fc86d4329b
> Review-Url: https://codereview.chromium.org/2619213002
> Cr-Commit-Position: refs/heads/master@{#42582}
> Committed: 2c1d1e6088TBR=hablich@chromium.com,machenbach@chromium.org,ofrobots@google.com,mic.besace@gmail.com
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:5740
Review-Url: https://codereview.chromium.org/2643393004
Cr-Commit-Position: refs/heads/master@{#42583}
Sometimes, the embedder might want to merge a fix to an abandoned branch
or to a supported branch but the fix is not relevant to Chromium.
This adds a new version string that the embedder can set on compile time
and that will be appended to the official V8 version.
The separator must be provided in the string. For instance, to have a
full version string like "5.5.372.37.custom.1", the embedder must set
V8_EMBEDDER_STRING to ".custom.1".
Related Node.js issue: https://github.com/nodejs/node/pull/9754
BUG=v8:5740
R=machenbach@chromium.org,hablich@chromium.com,ofrobots@google.com
CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.linux:linux_chromium_rel_ng
Review-Url: https://codereview.chromium.org/2619213002
Cr-Original-Commit-Position: refs/heads/master@{#42175}
Committed: fc86d4329b
Review-Url: https://codereview.chromium.org/2619213002
Cr-Commit-Position: refs/heads/master@{#42582}
This moves AsyncFunctionAwait{Caught,Uncaught} to CSA, and removes
async-await.js.
BUG=v8:5639
Review-Url: https://codereview.chromium.org/2643023002
Cr-Commit-Position: refs/heads/master@{#42579}
E.g., ast/ast.h uses Label but shouldn't need to include assembler.h for that. With
this change, we can hope for proper layering in the future (not quite there
yet).
Also includes minor random include lowering and relevant IWYU fixes.
BUG=v8:5294
Review-Url: https://codereview.chromium.org/2645063002
Cr-Commit-Position: refs/heads/master@{#42563}
- builtins-ic.cc takes the place of the AccessorAssembler shim
- AccessorAssemblerImpl can then be renamed
- some cleanup in code-factory.cc
- drop old _TF name suffixes
- fix Generate##Name##Impl in TF_BUILTIN macro
Review-Url: https://codereview.chromium.org/2647493002
Cr-Commit-Position: refs/heads/master@{#42520}
Reason for revert:
Blocks roll: https://codereview.chromium.org/2633463002/
Original issue's description:
> Pull define for version out into v8-version.h and separate build target
>
> This is part of removing the dependency of the Chromium browser DLL on
> Windows on V8.
>
> R=jochen@chromium.org
> BUG=chromium:581766
>
> Review-Url: https://codereview.chromium.org/2621983002
> Cr-Commit-Position: refs/heads/master@{#42243}
> Committed: 4593845417TBR=jochen@chromium.org,machenbach@chromium.org,scottmg@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=chromium:581766
Review-Url: https://codereview.chromium.org/2627713008
Cr-Commit-Position: refs/heads/master@{#42257}
Including a fix: object-macros.h needs to be the last include: otherwise
we'll have a problem when a file does this:
#include "object-macros.h"
#include "x.h" // x.h also includes object-macros.h
BUG=v8:5402
Review-Url: https://codereview.chromium.org/2623573003
Cr-Commit-Position: refs/heads/master@{#42187}
Reason for revert:
Seems to break the Chromium build: https://codereview.chromium.org/2619193005/
Message:
[1832/9671] CXX obj/v8/v8_base/version.o
FAILED: obj/v8/v8_base/version.o
/b/c/cipd/goma/gomacc ../../third_party/llvm-build/Release+Asserts/bin/clang++ -MMD -MF obj/v8/v8_base/version.o.d -DV8_DEPRECATION_WARNINGS -DDCHECK_ALWAYS_ON=1 -DUSE_UDEV -DUI_COMPOSITOR_IMAGE_TRANSPORT -DUSE_AURA=1 -DUSE_PANGO=1 -DUSE_CAIRO=1 -DUSE_GLIB=1 -DUSE_NSS_CERTS=1 -DUSE_X11=1 -DUSE_PROPRIETARY_CODECS -DFULL_SAFE_BROWSING -DSAFE_BROWSING_CSD -DSAFE_BROWSING_DB_LOCAL -DCHROMIUM_BUILD -DENABLE_MEDIA_ROUTER=1 -DFIELDTRIAL_TESTING_ENABLED -DCR_CLANG_REVISION=289944-2 -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -DNDEBUG -DNVALGRIND -DDYNAMIC_ANNOTATIONS_ENABLED=0 -DV8_I18N_SUPPORT -DENABLE_HANDLE_ZAPPING -DV8_USE_EXTERNAL_STARTUP_DATA -DV8_TARGET_ARCH_X64 -DDEBUG -DU_USING_ICU_NAMESPACE=0 -DU_ENABLE_DYLOAD=0 -DU_STATIC_IMPLEMENTATION -DICU_UTIL_DATA_IMPL=ICU_UTIL_DATA_FILE -I../.. -Igen -I../../v8 -I../../v8/include -I../../third_party/icu/source/common -I../../third_party/icu/source/i18n -fno-strict-aliasing --param=ssp-buffer-size=4 -fstack-protector -funwind-tables -fPIC -pipe -B../../third_party/binutils/Linux_x64/Release/bin -fcolor-diagnostics -fdebug-prefix-map=/b/c/b/linux/src=. -m64 -march=x86-64 -pthread -g1 --sysroot=../../build/linux/debian_wheezy_amd64-sysroot -fvisibility=hidden -Xclang -load -Xclang ../../third_party/llvm-build/Release+Asserts/lib/libFindBadConstructs.so -Xclang -add-plugin -Xclang find-bad-constructs -Xclang -plugin-arg-find-bad-constructs -Xclang check-ipc -Wheader-hygiene -Wstring-conversion -Wtautological-overlap-compare -Werror -Wall -Wno-unused-variable -Wno-missing-field-initializers -Wno-unused-parameter -Wno-c++11-narrowing -Wno-covered-switch-default -Wno-deprecated-register -Wno-unneeded-internal-declaration -Wno-inconsistent-missing-override -Wno-shift-negative-value -Wno-undefined-var-template -Wno-nonportable-include-path -Wno-address-of-packed-member -Wsign-compare -Winconsistent-missing-override -Wshorten-64-to-32 -O3 -fno-ident -fdata-sections -ffunction-sections -fno-threadsafe-statics -fvisibility-inlines-hidden -std=gnu++11 -fno-rtti -fno-exceptions -Wno-deprecated -c ../../v8/src/version.cc -o obj/v8/v8_base/version.o
../../v8/src/version.cc:42:34: error: use of undeclared identifier 'V8_EMBEDDER_STRING'
const char* Version::embedder_ = V8_EMBEDDER_STRING;
^
1 error generated.
Original issue's description:
> [build] Introduce an embedder version string
>
> Sometimes, the embedder might want to merge a fix to an abandoned branch
> or to a supported branch but the fix is not relevant to Chromium.
> This adds a new version string that the embedder can set on compile time
> and that will be appended to the official V8 version.
> The separator must be provided in the string. For instance, to have a
> full version string like "5.5.372.37.custom.1", the embedder must set
> V8_EMBEDDER_STRING to ".custom.1".
>
> Related Node.js issue: https://github.com/nodejs/node/pull/9754
>
> BUG=v8:5740
> R=machenbach@chromium.org,hablich@chromium.com,ofrobots@google.com
>
> Review-Url: https://codereview.chromium.org/2619213002
> Cr-Commit-Position: refs/heads/master@{#42175}
> Committed: fc86d4329bTBR=hablich@chromium.com,machenbach@chromium.org,ofrobots@google.com,mic.besace@gmail.com
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:5740
Review-Url: https://codereview.chromium.org/2621033002
Cr-Commit-Position: refs/heads/master@{#42182}
... including property reconfiguring, elements kind change and migration
of a map to an up-to-date non-deprecated version.
BUG=v8:5495
Review-Url: https://codereview.chromium.org/2601643002
Cr-Commit-Position: refs/heads/master@{#42177}
Sometimes, the embedder might want to merge a fix to an abandoned branch
or to a supported branch but the fix is not relevant to Chromium.
This adds a new version string that the embedder can set on compile time
and that will be appended to the official V8 version.
The separator must be provided in the string. For instance, to have a
full version string like "5.5.372.37.custom.1", the embedder must set
V8_EMBEDDER_STRING to ".custom.1".
Related Node.js issue: https://github.com/nodejs/node/pull/9754
BUG=v8:5740
R=machenbach@chromium.org,hablich@chromium.com,ofrobots@google.com
Review-Url: https://codereview.chromium.org/2619213002
Cr-Commit-Position: refs/heads/master@{#42175}
This adds the correctness fuzzer harness files to the output
directory guarded by a gn arg.
The switch will be turned on on the builder uploading builds to
clusterfuzz.
BUG=chromium:673246
NOTRY=true
TBR=tandrii@chromium.org,jochen@chromium.org
Review-Url: https://codereview.chromium.org/2623843002
Cr-Commit-Position: refs/heads/master@{#42166}
The attached chromium bug suggests that turning this on via a flag
regressed a perf test. Having previously run into slowdowns due
to experimental JS natives, my suspicion is that this regression
can be fixed by including the new builtins in the snapshot.
My intention is to land this patch to see if the regression
goes away on the bots.
Given the nature of this feature, it seems low-risk to remove
the runtime flag. If need be, it would be trivial to craft
a patch to remove these two methods from String.prototype
if we run into web compat issues during the release (note
that no release branch has yet picked up this feature).
BUG=v8:4954, chromium:677444
Review-Url: https://codereview.chromium.org/2610853010
Cr-Commit-Position: refs/heads/master@{#42111}
Store maps on the CheckMaps operator instead of burning inputs for
the individual maps. Use the same data structure (the ZoneHandleSet)
in the LoadElimination to track multiple maps per object.
BUG=v8:5267
R=jarin@chromium.org
Review-Url: https://codereview.chromium.org/2431563002
Cr-Commit-Position: refs/heads/master@{#42010}
This removes RegExpPrototypeSpeciesGetter and IteratorPrototypeIterator and
uses ReturnReceiver builtin instead.
This patch also ports the PromiseSpecies to TF by reusing this
builtin.
BUG=v8:5343
Review-Url: https://codereview.chromium.org/2590373002
Cr-Commit-Position: refs/heads/master@{#41879}
This moves the platform-specific distinction to one place, and allows
to just include assembler-inl.h instead of macro-assembler.h to get the
correct inline functions defined in assembler.h (e.g.
RelocInfo::set_target_address).
R=mstarzinger@chromium.org, titzer@chromium.org
Review-Url: https://codereview.chromium.org/2587113002
Cr-Commit-Position: refs/heads/master@{#41843}
Use FastAsciiConvert (as used by Unibrow) for i18n-aware
case conversion with --icu_case_mapping.
Move FastAsciiConvert to src/string-case.cc so that it can be used
by both runtime-{string,i18n}.
Add more tests.
BUG=v8:4477,v8:4476
TEST=intl/general/case*
Review-Url: https://codereview.chromium.org/2533983006
Cr-Commit-Position: refs/heads/master@{#41821}
This patch introduces:
1. ICStats class to store ic statistics items produced by V8,
2. A disabled by default tracing category v8.ic_stats,
3. An trace event V8.ICStats that contains ic statistics items in args,
We store ic statistics items in an array until the array is full to reduce
the number of trace events.
TBR=jkummerow@chromium.org,ishell@chromium.org
Review-Url: https://codereview.chromium.org/2503183002
Cr-Commit-Position: refs/heads/master@{#41559}
This CL adds a new header src/debug/interface-types.h, moves the
definition of Location from the debug-interface.h to this new header,
and adds a new definition for the WasmDisassembly types.
This allows to use the types in other implementation files or headers
without having to include the entire debug-interface.h, reducing build
dependencies and compile time (especially for incremental builds).
The WasmDisassembly type replaces the old
std::pair<std::string, std::vector<std::tuple<...>>>, which was a bit
hard to unravel.
R=yangguo@chromium.org, kozyatinskiy@chromium.org, titzer@chromium.org
Review-Url: https://codereview.chromium.org/2529383002
Cr-Commit-Position: refs/heads/master@{#41488}
This allows us to optimise the bytecode liveness analysis to jump
directly to previously seen indices. The analysis is optimised to store
a stack of loop ends (JumpLoop bytecode indices), and iterate through
these indices directly rather than looping through the bytecode array to
find them.
Review-Url: https://codereview.chromium.org/2536653003
Cr-Commit-Position: refs/heads/master@{#41485}
Replaces the graph-based liveness analyzer in the bytecode graph builder
with an initial bytecode-based liveness analysis pass, which is added to
the existing loop extent analysis.
Now the StateValues in the graph have their inputs initialised to
optimized_out, rather than being modified after the graph is built.
Review-Url: https://codereview.chromium.org/2523893003
Cr-Commit-Position: refs/heads/master@{#41355}
Reason for revert:
Breaks the build:
https://build.chromium.org/p/client.v8/builders/V8%20Linux%20-%20shared/builds/14886
Original issue's description:
> [ignition/turbo] Perform liveness analysis on the bytecodes
>
> Replaces the graph-based liveness analyzer in the bytecode graph builder
> with an initial bytecode-based liveness analysis pass, which is added to
> the existing loop extent analysis.
>
> Now the StateValues in the graph have their inputs initialised to
> optimized_out, rather than being modified after the graph is built.
>
> Committed: https://crrev.com/1852300954c216c29cf93444430681d213e87925
> Cr-Commit-Position: refs/heads/master@{#41344}
TBR=jarin@chromium.org,rmcilroy@chromium.org,yangguo@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
Review-Url: https://codereview.chromium.org/2541443002
Cr-Commit-Position: refs/heads/master@{#41346}
Replaces the graph-based liveness analyzer in the bytecode graph builder
with an initial bytecode-based liveness analysis pass, which is added to
the existing loop extent analysis.
Now the StateValues in the graph have their inputs initialised to
optimized_out, rather than being modified after the graph is built.
Review-Url: https://codereview.chromium.org/2523893003
Cr-Commit-Position: refs/heads/master@{#41344}
They're supposed to be stable across several parse passes, so we'll also
store them in the associated SharedFunctionInfos
To achieve this, the PreParser and Parser need to generated the same number of
FunctionLiterals. To achieve this, we teach the PreParser about desuggaring of
class literals.
For regular functions, the function IDs are assigned in the order they occur in
the source. For arrow functions, however, we only know that it's an arrow function
after parsing the parameter list, and so the ID assigned to the arrow function is
larger than the IDs assigned to functions defined in the parameter list. This
implies that we have to reset the function ID counter to before the parameter list
when re-parsing an arrow function. To be able to do this, we store the number of
function literals found in the parameter list of arrow functions as well.
BUG=v8:5589
Review-Url: https://codereview.chromium.org/2481163002
Cr-Commit-Position: refs/heads/master@{#41309}
The AstGraphBuilder pipeline is only used for asm.js now, so the whole
type feedback mechanism is essentially dead code currently, thus we
better nuke it.
BUG=v8:5267,v8:5657
Review-Url: https://codereview.chromium.org/2523953002
Cr-Commit-Position: refs/heads/master@{#41201}
Now that we have a JumpLoop bytecode, we can heavily simplify the
branch/loop analysis by assuming that only JumpLoop bytecodes are
backwards edges, and performing the loop analysis as a single
(backwards) pass.
This allows us to get rid of the branch analysis entirely, and builds a
framework to do liveness analysis in the same pass.
Review-Url: https://codereview.chromium.org/2519983002
Cr-Commit-Position: refs/heads/master@{#41194}
The handwritten-assembly implementations of both dispatcher and
generic stub have been replaced by Turbofan-generated stubs.
Review-Url: https://codereview.chromium.org/2523473002
Cr-Commit-Position: refs/heads/master@{#41188}
When disassembling functions for the inspector, we used an internal
text representation before. This CL implements the official text
format like it is understood by the spec interpreter.
Example output:
func $main (param i32) (result i32)
block i32
get_local 0
i32.const 2
i32.lt_u
if
i32.const -2
return
end
get_local 0
call_indirect 0
end
R=rossberg@chromium.org, titzer@chromium.org
BUG=chromium:659715
Review-Url: https://codereview.chromium.org/2520943002
Cr-Commit-Position: refs/heads/master@{#41172}
Instead of directly using v8_enable_inspector_override from
build_overrides/v8.gni in all the GN configs, set a v8_enable_inspector
variable based on v8_enable_inspector_override and use that everywhere.
This is the more common pattern seen in over projects, and reduces the
need to include //build_overrides/v8.gni in many files.
Review-Url: https://codereview.chromium.org/2520683002
Cr-Commit-Position: refs/heads/master@{#41156}
This pre-calculates and stores a vector of bytecode offsets, and then allows
one to iterate over it backwards. This could probably be adapted to a
bidirectional/random access iterator if we wanted to, but for now reverse
is all we need.
Review-Url: https://codereview.chromium.org/2518003002
Cr-Commit-Position: refs/heads/master@{#41153}
Refactors the bytecode array iterator to separate the iteration and the
bytecode parameter access, placing the latter into a separate
super-class. This will allow us to have other forms of access, e.g.
reverse iteration.
Review-Url: https://codereview.chromium.org/2519923002
Cr-Commit-Position: refs/heads/master@{#41152}
In component build, fuzzer did not link with icu libraries, causing
errors. By adding icu libraries to dependencies fuzzer links correctly.
BUG=
TEST=fuzzer/*
Review-Url: https://codereview.chromium.org/2510063002
Cr-Commit-Position: refs/heads/master@{#41098}
The new AccessorAssembler encapsulates all the functionality that's
specific to building LoadIC/StoreIC stubs.
There are two header files (accessor-assembler.h and
accessor-assembler-impl.h) so that clients of the assembler can include
the one, and subclassing assemblers can include the other.
Review-Url: https://codereview.chromium.org/2507733002
Cr-Commit-Position: refs/heads/master@{#41037}
When generating snapshot on a machine with a different page size than
the target machine, we can run into problems as the v8 page area size
changes. This is because v8 has page guards which depend on os page
size, so if the target has larger os page, v8 page area is smaller and
may not fit the contents.
The solution proposed here is adding a flag, v8_os_page_size, that
would, if used, override local os page size and use the one specified
during snapshot generation.
BUG=
Review-Url: https://codereview.chromium.org/2488403003
Cr-Commit-Position: refs/heads/master@{#40997}
SourcePosition::InliningId() refers to a the new table DeoptimizationInputData::InliningPositions(), which provides the following data for every inlining id:
- The inlined SharedFunctionInfo as an offset into DeoptimizationInfo::LiteralArray
- The SourcePosition of the inlining. Recursively, this yields the full inlining stack.
Before the Code object is created, the same information can be found in CompilationInfo::inlined_functions().
If SourcePosition::InliningId() is SourcePosition::kNotInlined, it refers to the outer (non-inlined) function.
So every SourcePosition has full information about its inlining stack, as long as the corresponding Code object is known. The internal represenation of a source position is a positive 64bit integer.
All compilers create now appropriate source positions for inlined functions. In the case of Turbofan, this required using AstGraphBuilderWithPositions for inlined functions too. So this class is now moved to a header file.
At the moment, the additional information in source positions is only used in --trace-deopt and --code-comments. The profiler needs to be updated, at the moment it gets the correct script offsets from the deopt info, but the wrong script id from the reconstructed deopt stack, which can lead to wrong outputs. This should be resolved by making the profiler use the new inlining information for deopts.
I activated the inlined deoptimization tests in test-cpu-profiler.cc for Turbofan, changing them to a case where the deopt stack and the inlining position agree. It is currently still broken for other cases.
The following additional changes were necessary:
- The source position table (internal::SourcePositionTableBuilder etc.) supports now 64bit source positions. Encoding source positions in a single 64bit int together with the difference encoding in the source position table results in very little overhead for the inlining id, since only 12% of the source positions in Octane have a changed inlining id.
- The class HPositionInfo was effectively dead code and is now removed.
- SourcePosition has new printing and information facilities, including computing a full inlining stack.
- I had to rename compiler/source-position.{h,cc} to compiler/compiler-source-position-table.{h,cc} to avoid clashes with the new src/source-position.cc file.
- I wrote the new wrapper PodArray for ByteArray. It is a template working with any POD-type. This is used in DeoptimizationInputData::InliningPositions().
- I removed HInlinedFunctionInfo and HGraph::inlined_function_infos, because they were only used for the now obsolete Crankshaft inlining ids.
- Crankshaft managed a list of inlined functions in Lithium: LChunk::inlined_functions. This is an analog structure to CompilationInfo::inlined_functions. So I removed LChunk::inlined_functions and made Crankshaft use CompilationInfo::inlined_functions instead, because this was necessary to register the offsets into the literal array in a uniform way. This is a safe change because LChunk::inlined_functions has no other uses and the functions in CompilationInfo::inlined_functions have a strictly longer lifespan, being created earlier (in Hydrogen already).
BUG=v8:5432
Review-Url: https://codereview.chromium.org/2451853002
Cr-Commit-Position: refs/heads/master@{#40975}
In component build, unittests did not link with icu libraries, which
caused errors. By adding icu libraries to dependencies unittests links
correctly.
BUG=
TEST=unittests/*
Review-Url: https://codereview.chromium.org/2479863002
Cr-Commit-Position: refs/heads/master@{#40955}
- Creates a new promise-utils.{h, cc} which refactors out the
logic to create resolving functions. This is shared between the
runtime functions and builtins.
- Changes PromiseResolveThenableJobInfo to store the context
since we no longer create the resolving functions in JS.
- Changes EnqueuPromiseResolveThenableJob to take in the promise and
not the callbacks.
BUG=v8:5343
Review-Url: https://codereview.chromium.org/2487053002
Cr-Commit-Position: refs/heads/master@{#40941}
This CL moves all heap-allocated WASM data structures, both ones
that are bonafide JSObjects and ones that are FixedArrays only, into a
consistent place with consistent layout. Note that not all accessors are complete, and I haven't fully spread the new static typing goodness
to all places in the code.
R=ahaas@chromium.org,rossberg@chromium.org
CC=gdeepti@chromium.org,mtrofin@chromium.org,clemensh@chromium.org
BUG=
Review-Url: https://codereview.chromium.org/2490663002
Cr-Commit-Position: refs/heads/master@{#40913}
- A new runtime function (%create_resolving_functions) is installed to
call the CreateResolvingFunctions builtin from JS.
- Three new builtins are created - resolve and reject functions and a
third function that creates a new JSFunctions from these
resolve/reject builtins.
- The promise reject function is installed on the context temporarily
as internal_promise_reject. This should go away once we remove
PromiseSet.
BUG=v8:5343
Review-Url: https://codereview.chromium.org/2459283004
Cr-Commit-Position: refs/heads/master@{#40903}
This patch removes TracingCategoryObserver API and moves the creation of
observer inside platform initialization, by assuming that either
Platform::AddTraceStateObserver is implemented correctly to add observer to
tracing controller that implemented by embedders, or default tracing controller
has already been set up and attached to platform before
v8::V8::InitializePlatform is called.
BUG=v8:5590
Review-Url: https://codereview.chromium.org/2471583004
Cr-Commit-Position: refs/heads/master@{#40739}
This patch implements TracingCategoryObserver to set global flag when a V8
specific category is enabled. Previously, we set a global flag each time when we
encounter a top level trace event, and use it as a global check. With this
patch, we can set a group of flags when tracing is enabled; besides, we make
V8 tracing feature use V8 flags instead of defining its own flag in a messy way.
With this patch, whatever V8 flag we want to imply in tracing, we define another
integer flag, and the original V8 flag will set it to 0x01 when passing by
commandline, tracing will set it to 0x10 when we start tracing and reset the bit
when we stop tracing.
Review-Url: https://codereview.chromium.org/2436273002
Cr-Commit-Position: refs/heads/master@{#40659}
This patch moves promise specific runtime functions
to runtime-promise.cc from runtime-internal.cc
BUG=v8:5343
Review-Url: https://codereview.chromium.org/2452833003
Cr-Commit-Position: refs/heads/master@{#40618}
Since ZoneLists are essentially non-standard ZoneVectors and have a bad
growing behaviour (ZoneList-allocations make up ~50% of website parse
zone memory) we should stop using them. The zone-containers are merely
a clean-up, with none of them actually better suited to be used with
zones. This new datastructure allows most operations of a LinkedList (
except pop_first and insertAt/removeAt) but uses about the same memory
as a well-initialized ZoneVector/ZoneList (<3% overhead with reasonably
large lists). It also never attempts to free memory again (which would
not work in zones anyway).
The ZoneChunkList is essentially a doubly-linked-list of arrays of
variable size.
Some test-results where I tried storing 16k pointers in different list
types (lists themselves also zone-allocated):
List type Zone memory used Time taken
-----------------------------------------------------------------------
Zone array (for comparison) 131072 B
Ideally initialized ZoneList 131088 B 0.062ms
ChunkZoneList 134744 B 0.052ms <--new thing
ZoneDeque 141744 B
ZoneLinkedList 393264 B
Initially empty ZoneList 524168 B 0.171ms <--right now
ChunkZoneList only push_front 524320 B
Review-Url: https://codereview.chromium.org/2449383002
Cr-Commit-Position: refs/heads/master@{#40602}
The meaning of the HValue::kAllowUndefinedAsNaN is actually ToNumber
conversion (except for the uses in HBranch and HCompareHoleAndBranch,
which were confusing and useless anyways), so fix the naming to match
that.
Also properly integrate the handling of this flag with the existing
truncation analysis that is run as part of the representation changes
phase (i.e. where we already deal with truncating to int32 and smi).
This is done in preparation of allowing Crankshaft to handle any kind
of Oddball in the ToNumber truncation, instead of just undefined for
truncation ToNumber and undefined or boolean for ToInt32. It also helps
to make Crankshaft somewhat more compatible with the (saner)
implementation in TurboFan.
R=yangguo@chromium.org
BUG=v8:5400
Review-Url: https://codereview.chromium.org/2449353002
Cr-Commit-Position: refs/heads/master@{#40577}
This CL removes code that is now unused since the port of regexp.js has been
completed. Removed functions / classes are:
* regexp.js (GetSubstitution moved to string.js)
* RegExpConstructResult stub
* RegExpFlags intrinsic
* RegExpSource intrinsic
* RegExpInitializeAndCompile runtime function
BUG=v8:5339
Review-Url: https://codereview.chromium.org/2448463002
Cr-Commit-Position: refs/heads/master@{#40547}
Depending on the inputs the fuzzer creates multiple functions. These
functions can have signatures with an int32 return value and up to three
parameters of type int32, int64, float32, or float64.
R=titzer@chromium.org, clemensh@chromium.org
Review-Url: https://codereview.chromium.org/2447643002
Cr-Commit-Position: refs/heads/master@{#40530}
Additionally, remove all code related to the old-style slots filtering and black area end markers.
BUG=chromium:648568
Review-Url: https://chromiumcodereview.appspot.com/2440683002
Cr-Commit-Position: refs/heads/master@{#40494}
Reason for revert:
https://build.chromium.org/p/client.v8.ports/builders/V8%20Android%20Arm64%20-%20builder/builds/4851
Original issue's description:
> Update implementation of atomics with latest Chromium version but use compiler builtin atomics
>
> Ideally, we would use the standard library. However, when we are compiling against an older version of the standard library the atomic implementation may be slow.
>
> BUG=
TBR=mlippautz@chromium.org,ulan@chromium.org,jarin@chromium.org,hpayer@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=
Review-Url: https://chromiumcodereview.appspot.com/2438983002
Cr-Commit-Position: refs/heads/master@{#40489}
Ideally, we would use the standard library. However, when we are compiling against an older version of the standard library the atomic implementation may be slow.
BUG=
Review-Url: https://chromiumcodereview.appspot.com/2425963002
Cr-Commit-Position: refs/heads/master@{#40488}
Implements the variations of CreateArrayIterator() in TFJ builtins
(ArrayPrototypeValues, ArrayPrototypeEntries and ArrayPrototypeKeys), and
provides two new Object types with numerous maps which identify certain
behaviours, which will be useful for inlining.
Removes src/js/array-iterator.js entirely
Also adds support for printing Symbol literals inserted by the Parser during
desugaring when FLAG_print_builtin_ast is set to true.
BUG=v8:5388
R=bmeurer@chromium.org, cbruni@chromium.orgTBR=ulan@chromium.org
Review-Url: https://codereview.chromium.org/2405253006
Cr-Commit-Position: refs/heads/master@{#40373}
Use sparingly!
This doesn't add any really new functionality, other than making it more
convenient to do this.
This will primarily be used to wrap a WasmModule to be referenced from a
JSObject that represents an instance. There is one WasmModule C++ object
per parsed WasmModule, so this should not be more than a handful or a few
dozen in well-behaved programs.
R=rossberg@chromium.org,mlippautz@chromium.org
BUG=
Review-Url: https://codereview.chromium.org/2409173005
Cr-Commit-Position: refs/heads/master@{#40346}
... to keep all the pieces in one place for easier modifications.
This CL also adds a new runtime call stats bucket: KeyedLoadIC_LoadElementDH.
BUG=
Review-Url: https://codereview.chromium.org/2412983008
Cr-Commit-Position: refs/heads/master@{#40314}
This CL is in preparation for the upcoming port of
RegExp.prototype.replace, which will need use these methods in
runtime-regexp.cc. Moving them in advance makes that diff less noisy.
BUG=v8:5339
Review-Url: https://codereview.chromium.org/2398413002
Cr-Commit-Position: refs/heads/master@{#40229}
