This reverts commit d4a742fdf1.
Reason for revert: gc-stress failures
Original change's description:
> Reland "[heap] Add mechanism for tracking invalidated slots per memory chunk."
>
> This reverts commit c59b81d7b8.
>
> Original change's description:
> > [heap] Add mechanism for tracking invalidated slots per memory chunk.
>
> > For correct slots recording in concurrent marker, we need to resolve
> > the race that happens when
> > 1) the mutator is invalidating slots for double unboxing or string
> > conversions
> > 2) and the concurrent marker is recording these slots.
>
> > This patch adds a data-structure for tracking the invalidated objects.
> > Thus we can allow the concurrent marker to record slots without
> > worrying about clearing them. During old-to-old pointer updating phase
> > we re-check all slots that belong to the invalidated objects.
>
> BUG=chromium:694255
>
> Change-Id: Idf8927d162377a7bbdff34f81a87e52db27d6a9f
> Reviewed-on: https://chromium-review.googlesource.com/596868
> Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
> Commit-Queue: Ulan Degenbaev <ulan@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#47068}
TBR=ulan@chromium.org,mlippautz@chromium.org
Change-Id: I81c6059a092cc5834acd799c51fd30dc0ecf5b27
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: chromium:694255
Reviewed-on: https://chromium-review.googlesource.com/597787
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Commit-Queue: Ulan Degenbaev <ulan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47078}
This reverts commit c59b81d7b8.
Original change's description:
> [heap] Add mechanism for tracking invalidated slots per memory chunk.
> For correct slots recording in concurrent marker, we need to resolve
> the race that happens when
> 1) the mutator is invalidating slots for double unboxing or string
> conversions
> 2) and the concurrent marker is recording these slots.
> This patch adds a data-structure for tracking the invalidated objects.
> Thus we can allow the concurrent marker to record slots without
> worrying about clearing them. During old-to-old pointer updating phase
> we re-check all slots that belong to the invalidated objects.
BUG=chromium:694255
Change-Id: Idf8927d162377a7bbdff34f81a87e52db27d6a9f
Reviewed-on: https://chromium-review.googlesource.com/596868
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Commit-Queue: Ulan Degenbaev <ulan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47068}
This reverts commit 7a5a777c97.
Reason for revert: crashing in test-api
Original change's description:
> [heap] Add mechanism for tracking invalidated slots per memory chunk.
>
> For correct slots recording in concurrent marker, we need to resolve
> the race that happens when
> 1) the mutator is invalidating slots for double unboxing or string
> conversions
> 2) and the concurrent marker is recording these slots.
>
> This patch adds a data-structure for tracking the invalidated objects.
> Thus we can allow the concurrent marker to record slots without
> worrying about clearing them. During old-to-old pointer updating phase
> we re-check all slots that belong to the invalidated objects.
>
> BUG=chromium:694255
>
> Change-Id: Ifc3d82918cd3b96e5a5fb7125691626a56f4ab83
> Reviewed-on: https://chromium-review.googlesource.com/591810
> Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
> Commit-Queue: Ulan Degenbaev <ulan@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#47049}
TBR=ulan@chromium.org,mlippautz@chromium.org
Change-Id: I7f4f8e8cb027b921a82e9c0a0623536af02581fb
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: chromium:694255
Reviewed-on: https://chromium-review.googlesource.com/595994
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Commit-Queue: Ulan Degenbaev <ulan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47052}
For correct slots recording in concurrent marker, we need to resolve
the race that happens when
1) the mutator is invalidating slots for double unboxing or string
conversions
2) and the concurrent marker is recording these slots.
This patch adds a data-structure for tracking the invalidated objects.
Thus we can allow the concurrent marker to record slots without
worrying about clearing them. During old-to-old pointer updating phase
we re-check all slots that belong to the invalidated objects.
BUG=chromium:694255
Change-Id: Ifc3d82918cd3b96e5a5fb7125691626a56f4ab83
Reviewed-on: https://chromium-review.googlesource.com/591810
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Commit-Queue: Ulan Degenbaev <ulan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47049}
Register configuration data is not the same as frame configuration data.
This CL moves the last remnants of register configuration into
the assembler files, to be with the other register configuration
macros.
Next step: extract this register configuration data into
platform-specific files that can be included independent of the
assembler.
R=mstarzinger@chromium.org
Bug:
Change-Id: I10933b5090be94e90e2a1442197528dfe30bb566
Reviewed-on: https://chromium-review.googlesource.com/595590
Commit-Queue: Ben Titzer <titzer@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47044}
Change-Id: Idb6dfed1d0314c38c25b230faa7e28728cff2637
Reviewed-on: https://chromium-review.googlesource.com/587250
Commit-Queue: Adam Klein <adamk@chromium.org>
Reviewed-by: Georg Neis <neis@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47019}
in preparation for caching StoreIC-Transition handlers in there.
This CL should not change behavior or performance.
The TransitionArray class no longer serves a dual purpose; it is now
simply the data structure serving that role. Further, it now supports
storing transitioning handlers in its "target" slot, which in turn have
a WeakCell pointing to the transition target (but this functionality
is not being used yet).
The interface for accessing a map's transitions, previously implemented
as a set of static functions, is now handled by the TransitionsAccessor
class. It distinguishes the following internal states:
- kPrototypeInfo: map is a prototype map, will never cache any transitions.
- kUninitialized: map can cache transitions, but doesn't have any.
- kWeakCell: map caches a single transition, stored inline. Formerly known
as "IsSimpleTransition".
- kFullTransitionArray: map uses a TransitionArray to store transitions.
- kTuple3Handler, kFixedArrayHandler: to be used in the future for caching
transitioning handlers.
Change-Id: If2aa68390981f96f317b958445a6e0b935c2a14e
Reviewed-on: https://chromium-review.googlesource.com/550118
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Reviewed-by: Igor Sheludko <ishell@chromium.org>
Commit-Queue: Jakob Kummerow <jkummerow@chromium.org>
Cr-Commit-Position: refs/heads/master@{#46981}
This CL moves us much closer to the point where we can remove debugger-script.js and usage of debugger context from inspector.
There are three main parts left:
- managing breakpoints,
- inspecting stack and scopes (this CL),
- LiveEdit.
In this CL I moved all stack/scope inspection to native. As side effect running debugger and inspector tests are 10-20% faster (it's significant since not all of tests requesting break).
R=yangguo@chromium.org,jgruber@chromium.org
Bug: chromium:652939
Cq-Include-Trybots: master.tryserver.blink:linux_trusty_blink_rel;master.tryserver.chromium.linux:linux_chromium_rel_ng
Change-Id: I409396a687e18e9c0554c0c9c35b6e1064627be8
Reviewed-on: https://chromium-review.googlesource.com/580645
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Commit-Queue: Aleksey Kozyatinskiy <kozyatinskiy@chromium.org>
Cr-Commit-Position: refs/heads/master@{#46947}
Reland of https://chromium-review.googlesource.com/c/558290/
Makes compiler dispatcher jobs an abstract interface, with unoptimized
compile jobs as an implementation of this interface.
Bug: v8:6537
Change-Id: Ia85781f72c7aaca497896ca4efa91ada97e43b1c
Reviewed-on: https://chromium-review.googlesource.com/589154
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
Reviewed-by: Georg Neis <neis@chromium.org>
Cr-Commit-Position: refs/heads/master@{#46940}
Makes compiler dispatcher jobs an abstract interface, with unoptimized
compile jobs as an implementation of this interface.
Bug: v8:6537
Change-Id: I6569060a89c92d35e4bc7962623f77082a354934
Reviewed-on: https://chromium-review.googlesource.com/558290
Reviewed-by: Georg Neis <neis@chromium.org>
Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Cr-Commit-Position: refs/heads/master@{#46931}
This adds a missing swarming config to the ubsan builders to fix
test isolation.
This also adds ubsan_vptr to the inferred options from build metadata.
For ubsan_vptr builds, the test runner makes sure to set up the
required options.
TBR=ishell@chromium.org
Bug: chromium:726584
Change-Id: I9667ba2b6d9d0f363f7cc94d23308e09da002d99
Reviewed-on: https://chromium-review.googlesource.com/577689
Reviewed-by: Igor Sheludko <ishell@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#46866}
Apparently the name float.h causes problems on Windows when V8 is
compiled with Visual Studio, see the bug description.
R=clemensh@chromium.org
Bug: v8:6588
Change-Id: Iaa9c1e93e62509a779f1a8ddecbb03a53981cf8a
Reviewed-on: https://chromium-review.googlesource.com/578029
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Commit-Queue: Andreas Haas <ahaas@chromium.org>
Cr-Commit-Position: refs/heads/master@{#46791}
There remained a few of regressions and we didn't see any significant
improvement in the real world with this turned on. This CL reverts all the
StringConcat bytecode work which landed.
BUG=v8:6243
Change-Id: I832eb72e880ad41411dbec8fe29f71ef0f2025c8
Reviewed-on: https://chromium-review.googlesource.com/575130
Commit-Queue: Ross McIlroy <rmcilroy@chromium.org>
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#46769}
This allows to reuse the class e.g. in the baseline compiler.
R=titzer@chromium.org
Change-Id: I7251af16e8c74f267834a9cefb676edf3c9f3a07
Reviewed-on: https://chromium-review.googlesource.com/570020
Reviewed-by: Ben Titzer <titzer@chromium.org>
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#46735}
This was previously used by our js builtins but they no longer
exist. This has been exposed to API which means we can't remove it
just yet. Moving to CPP for now to save binary size.
Bug: v8:5343
Change-Id: I2a3e5a4169310b2ba13ce13f0386336e9733d71f
Reviewed-on: https://chromium-review.googlesource.com/575024
Reviewed-by: Adam Klein <adamk@chromium.org>
Commit-Queue: Sathya Gunasekaran <gsathya@chromium.org>
Cr-Commit-Position: refs/heads/master@{#46721}
Follow up on https://codereview.chromium.org/2740353002. Created
PosixDefaultTimezoneCache which is a subclass of PosixTimezoneCache
containing definition of LocalTimezone and LocalTimeOffset which is
separate for different OS.
R=littledan@chromium.org, ulan@chromium.org
BUG=v8:6578
LOG=N
Change-Id: I58342893aeefe79ac50e1df041d614fc473f15bf
Reviewed-on: https://chromium-review.googlesource.com/568686
Reviewed-by: Daniel Ehrenberg <littledan@chromium.org>
Commit-Queue: Jaideep Bajwa <bjaideep@ca.ibm.com>
Cr-Commit-Position: refs/heads/master@{#46604}
This CL moves collected source range information out of AST nodes
and into a side table stored on ParseInfo. The side table is only
created if block coverage is enabled, so there's almost no memory
overhead in the standard case.
Change-Id: I41871b8425ebbc6217d82d3ad26b5fc9e5d68ecb
Reviewed-on: https://chromium-review.googlesource.com/566808
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
Reviewed-by: Georg Neis <neis@chromium.org>
Cr-Commit-Position: refs/heads/master@{#46590}
- Implements the Promise.race algorithm using CodeStubAssembler.
- Delete src/js/promise.js, which is no longer needed.
- Migrate Promise constructor from slow to fast object in bootstrapper
(per v8:5902)
Increases size of snapshot_blob.bin on an x64.release build by 1.27kb.
BUG=v8:5343
R=gsathya@chromium.org, cbruni@chromium.org
Change-Id: I751e7389bd6ba410109640fcd7960b6021540f2f
Reviewed-on: https://chromium-review.googlesource.com/535041
Commit-Queue: Caitlin Potter <caitp@igalia.com>
Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Cr-Commit-Position: refs/heads/master@{#46489}
This CL changes for floats what https://chromium-review.googlesource.com/c/558964/
changed for doubles.
Original message:
On x86, signalling NaNs get converted to quiet NaNs when they get push
on the stack and popped again. This happens in the code generation for
arm, specifically for the vmov instruction with the immediate parameter.
This CL replaces the vmov function in assembler-arm to take the
immediate as a uint64_t instead of a double, to guarantee that the bit
pattern does not change even if the parameter is a signalling NaN.
New in this CL:
Although src/double.h existed already, src/float.h did not exist yet.
I created the file in this CL, and moved the classes Float32 and
Float64 there, which already existed in src/deoptimizer.h.
R=titzer@chromium.org, martyn.capewell@arm.com, v8-arm-ports@googlegroups.com
BUG=v8:6564
Change-Id: I6a3f1f154af9c8cd4bb8e7e856235d3eee5e9edd
Reviewed-on: https://chromium-review.googlesource.com/561009
Commit-Queue: Andreas Haas <ahaas@chromium.org>
Reviewed-by: Martyn Capewell <martyn.capewell@arm.com>
Reviewed-by: Ben Titzer <titzer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#46473}
Adds a CheckElimination reducer to eliminate checks which have become
unecessary due to inlining of heap constants.
BUG=v8:6243, chromium:738312
Change-Id: Ie50b274bd07c86466eead08b2f21d2b63dd9e01c
Reviewed-on: https://chromium-review.googlesource.com/559129
Commit-Queue: Ross McIlroy <rmcilroy@chromium.org>
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#46460}
This is the first step in optimizing Map and Set iterators. This ports
all the base functionality including
- Set.prototype.entries
- Set.prototype.values
- %SetPrototypeIterator%.next
- Map.prototype.entries
- Map.prototype.keys
- Map.prototype.values
- %MapPrototypeIterator%.next
to C++ and removes all the dead code and the previous half JavaScript
implementation. The next step is to port core parts to CodeStubAssembler
and finally inline the fast-paths into TurboFan directly. The relevant
design document is at:
https://docs.google.com/document/d/13z1fvRVpe_oEroplXEEX0a3WK94fhXorHjcOMsDmR-8
Most of this work is very similar to how the Array iterator works and we
mostly follow the same process for the implementation.
R=jgruber@chromium.org
Bug: v8:6571
Change-Id: Ieb253d6705ba4077c697a5ff0cb6f87f9c4056ff
Reviewed-on: https://chromium-review.googlesource.com/561138
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Commit-Queue: Benedikt Meurer <bmeurer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#46441}
This drops v8_hello_world, v8_parser_shell and v8_sample_process from the
official v8 archives.
This also adds a new option to differentiate library and executable
archives.
NOTRY=true
TBR=marja@chromium.org
Bug: v8:5918
Change-Id: I946708f2eeb030296c5ce284541ecf719522186c
Reviewed-on: https://chromium-review.googlesource.com/554753
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#46312}
Before this CL, cctest with component build will depend on the static v8
snapshot target and omit to dump the build configuration.
Now we simply write the configuration when building any v8
executable. In pure library builds, we don't need the configuration, as
it's used by the test framework to auto-detect testing options.
Bug: v8:5918
Change-Id: Ie85ba82a2803542f0a0c88d6044167138fdd7d4f
Reviewed-on: https://chromium-review.googlesource.com/554690
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#46305}
Explicitly set gcc as it's derived in gyp.
Bug: chromium:645890
Change-Id: Ibe77ab10b9ce705bdb650b14e212c55b0a9154ba
Reviewed-on: https://chromium-review.googlesource.com/552638
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Zhengxing Li <zhengxing.li@intel.com>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#46295}
This adds GN configs for using sanitizer coverage and refactors gcov
configs. Now, both coverage kinds are behind the same gn argument
v8_code_coverage.
This also switches the bot to GN.
Bug: chromium:645890,v8:5502
Change-Id: I3af606e0cad109dd790a121d0d92e53cf4e38f9a
Reviewed-on: https://chromium-review.googlesource.com/549360
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#46254}
This prepares switching the gcov coverage bot to GN.
We skip instrumenting test executables explicitly in gn configs.
In gyp, we did the same through an extra compiler wrapper script.
NOTRY=true
Bug: chromium:645890
Change-Id: I663fb479347063ae9228598d356bb654ca2a496c
Reviewed-on: https://chromium-review.googlesource.com/548275
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#46217}
Move bytecode array writing logic into the array builder, allowing us to
remove the bytecode array writer and bytecode node, and convert runtime
operand writing to compile-time bytecode operand writing using the
information statically known at compile time.
Bug: v8:6474
Change-Id: I210cd9897fd41293745614e4a253c7c251dfffc9
Reviewed-on: https://chromium-review.googlesource.com/533055
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
Cr-Commit-Position: refs/heads/master@{#46183}
Remove PageParallelJob as it is completely replaced now. It served us
well.
Bug: chromium:651354
Change-Id: I620fa7bb0dcaf7cd3710492913c501bcb162c781
Reviewed-on: https://chromium-review.googlesource.com/544950
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Commit-Queue: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#46159}
This is a reland of 54b42a55e7
Original change's description:
> [build] Add filter script for official build
>
> This adds a V8-side script to list the files contained in an official archive.
>
> This'll accompany the infra-side archive recipe:
> https://chromium-review.googlesource.com/c/544298/
>
> Keeping this script on the V8-side will make it easy to change the
> archived build product.
>
> NOTRY=true
>
> Bug: v8:5918
> Change-Id: I9fcb2eae183a26e7ce11c839d95a583a049cbe75
> Reviewed-on: https://chromium-review.googlesource.com/544877
> Commit-Queue: Michael Achenbach <machenbach@chromium.org>
> Reviewed-by: Daniel Vogelheim <vogelheim@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#46135}
TBR=vogelheim@chromium.org
NOTRY=true
Bug: v8:5918
Change-Id: I87b58c78a2cbd97f4da37ac93fe1e8ee77bf5ca0
Reviewed-on: https://chromium-review.googlesource.com/544979
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#46138}
