Instead of having the "next step" state machine logic in the compiler
dispatcher, move it to the compiler dispatcher job. This is a
prerequisite to having more generic jobs with slightly different state
sets, such as an optimizing compile job.
Bug: v8:6537
Change-Id: Ib7319222f26dbc0e2afc95573b06d813825afde3
Reviewed-on: https://chromium-review.googlesource.com/554751
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
Cr-Commit-Position: refs/heads/master@{#46396}
Every, Some, Reduce, ReduceRight. Added a test that should improve
when TurboFan inlines these builtins. Updated Map and Filter tests
to include a TurboFan inline test.
Bug: v8:2229
Change-Id: Ie84d414fdcccea23c734caca55a3344f9442547f
Reviewed-on: https://chromium-review.googlesource.com/558935
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Commit-Queue: Michael Stanton <mvstanton@chromium.org>
Cr-Commit-Position: refs/heads/master@{#46395}
v8.cpu_profiler has a long and variable warm up period. If you look in
tracing that time shows up under V8.Execute which is very misleading. By
adding a tracing category for the time spent in
CpuProfiler::StartProfiling the warm up time can be easily identified or
even filtered out.
With this tracing event the block in StartProfiling correctly described
the time spent prepare v8.cpu_profiler out from V8.Execute
Test by collecting a trace with V8.Execute and look at when a trace
starts generating v8 samples.
BUG=chromium:733853
Review-Url: https://codereview.chromium.org/2950543002
Cr-Commit-Position: refs/heads/master@{#46393}
This reverts commit 8840d622aa.
Reason for revert: This requires the infra-side to be adapted to look
for open rolls. There's no such feature in the gerrit recipe_module
or git-cl tooling yet.
Original change's description:
> [release] Make gerrit the default for all release tools
>
> This switches also the V8->Chromium rolls to Gerrit.
>
> NOTRY=true
> TBR=hablich@chromium.org
>
> Bug: chromium:685318
> Change-Id: Idc168f790541f09bd2f2d7c2f72806ac9e966843
> Reviewed-on: https://chromium-review.googlesource.com/558913
> Reviewed-by: Michael Achenbach <machenbach@chromium.org>
> Commit-Queue: Michael Achenbach <machenbach@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#46388}
TBR=machenbach@chromium.org,hablich@chromium.org,tandrii@chromium.org
Change-Id: I597538b6165b9952b5df9cde72466b95739cf56b
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: chromium:685318
Reviewed-on: https://chromium-review.googlesource.com/558225
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#46390}
The release tools used to reload CL descriptions from rietveld to consider
late edits. This makes no sense anymore with gerrit, so we drop the feature.
NOTRY=true
TBR=hablich@chromium.org
Bug: chromium:685318
Change-Id: I08231795ba3b25c0939aa2b4428973086548484d
Reviewed-on: https://chromium-review.googlesource.com/558915
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#46389}
This switches also the V8->Chromium rolls to Gerrit.
NOTRY=true
TBR=hablich@chromium.org
Bug: chromium:685318
Change-Id: Idc168f790541f09bd2f2d7c2f72806ac9e966843
Reviewed-on: https://chromium-review.googlesource.com/558913
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#46388}
On Loongson 3A, MADD/MSUB instructions are actually fused MADD/MSUB and
they can cause failure in some of the tests. Since this optimization is
rarely used, and not used at all on MIPS64R6, MADD/MSUB instructions
are removed from the source base.
TEST=
BUG=
Change-Id: Ifbb5508a62731bb061f332864ffd1e210e97f963
Reviewed-on: https://chromium-review.googlesource.com/558066
Reviewed-by: Ivica Bogosavljevic <ivica.bogosavljevic@imgtec.com>
Commit-Queue: Ivica Bogosavljevic <ivica.bogosavljevic@imgtec.com>
Cr-Commit-Position: refs/heads/master@{#46387}
The test runner automatically infers certain options from the build
product if it was generated with GN.
This CL makes the code for inferring the options more generic and makes
sure that:
1) boolean options can't be set on builds where they don't make sense
(e.g. can't pass --asan in a non-asan build)
2) string options are equal to the derived option from the build
(e.g. can't test arch x64 when build is x86)
Bug: v8:5533
Change-Id: I4badf3a17a2fc23ddb9d129602aa15f12665821f
Reviewed-on: https://chromium-review.googlesource.com/552542
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#46385}
- Avoid static methods.
- Instantiate the actual visitor on the stack.
- Get rid of unnecessary abstractions.
Bug: chromium:738865
Change-Id: I4115d7b88f17a7118aa9ee129eb39a28ec413696
Reviewed-on: https://chromium-review.googlesource.com/558878
Commit-Queue: Michael Lippautz <mlippautz@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#46384}
This uploads roll-branch CLs before landing and fixes an
ambiguity bug when pushing tags.
NOTRY=true
TBR=hablich@chromium.org
Bug: chromium:738679
Change-Id: I51e03d714ec97ee2d9bca4ecaf753d66038891c1
Reviewed-on: https://chromium-review.googlesource.com/558415
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#46382}
When providing scope information (containing the value of local
variables of live stack frames), decode the local variable names of all
functions in a wasm module and store this in the WasmDebugInfo
structure.
Use these names to actually name the reported locals, instead of using
the default names "param#<d>" and "local#<d>". These names are only used
as fallbacks for locals which were not assigned a name.
R=titzer@chromium.org,kozyatinskiy@chromium.org
BUG=v8:6245
Change-Id: Ibf7d30e392248ef5590177cd8b6329239b45e018
Reviewed-on: https://chromium-review.googlesource.com/548495
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Reviewed-by: Ben Titzer <titzer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#46379}
Instructions ins and ext didn't work properly when size = 32 because of
incorrect mask initialization, this CL fixes this. A test for Ins is
also added.
BUG=
Change-Id: I95cc8e13aaa2341b34ae59dae1eefb64c551b8b4
Reviewed-on: https://chromium-review.googlesource.com/558872
Commit-Queue: Miran Karić <Miran.Karic@imgtec.com>
Reviewed-by: Ivica Bogosavljevic <ivica.bogosavljevic@imgtec.com>
Cr-Commit-Position: refs/heads/master@{#46378}
Removes the ability of allocating dominators and folded allocations
which was tied to Crankshaft's allocation folding.
Bug: v8:6408
Change-Id: Id2e1b5445c8357ac770c88e734b6c50d5f6c5eae
Reviewed-on: https://chromium-review.googlesource.com/558093
Commit-Queue: Michael Lippautz <mlippautz@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#46377}
The jsapi-harness test runs the JS-API spec tests of WebAssembly, which
get fetched from github when 'gclient sync' is executed. Without
'gclient sync' the harness may executed a version of the tests which is
older than required by the harness. In this CL I add a suggestion to
the test to run 'gclient sync' which is shown when the test is failing.
R=marja@chromium.org
Change-Id: I36d03bebc4d6cc554eefd4eb376c3d309b7ee5b9
Reviewed-on: https://chromium-review.googlesource.com/558419
Reviewed-by: Marja Hölttä <marja@chromium.org>
Commit-Queue: Andreas Haas <ahaas@chromium.org>
Cr-Commit-Position: refs/heads/master@{#46375}
(The test that catches the bug was test-bytecode-generator/LookupSlot)
BUG=v8:5516
Change-Id: I00a02c5326b2a132383a9d72b5b894fade53bbf2
Reviewed-on: https://chromium-review.googlesource.com/558864
Commit-Queue: Marja Hölttä <marja@chromium.org>
Reviewed-by: Igor Sheludko <ishell@chromium.org>
Cr-Commit-Position: refs/heads/master@{#46374}
This sometimes caused problems with bots (for node too) because the
allocation could fail.
Bug: v8:6452
Change-Id: I346a9117eba8b6ed41566efeceaf7fb190784d76
Reviewed-on: https://chromium-review.googlesource.com/558075
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Commit-Queue: Peter Marshall <petermarshall@chromium.org>
Cr-Commit-Position: refs/heads/master@{#46373}
Reason for revert:
Speculative revert for tiny fire on Canary (crbug.com/738781)
Original issue's description:
> [turbofan] Extend escape analysis to reduce certain CheckMaps.
>
> Enable the experimental support in escape analysis to deal with
> constant-foldable CheckMaps nodes and remove them from the effect
> chain w/o blocking the scalar replacement of the object.
>
> BUG=v8:4586,v8:5267
> R=tebbi@chromium.org
>
> Review-Url: https://codereview.chromium.org/2964473002
> Cr-Commit-Position: refs/heads/master@{#46311}
> Committed: adf7f54e24TBR=tebbi@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=v8:4586,v8:5267
Review-Url: https://codereview.chromium.org/2970663002
Cr-Commit-Position: refs/heads/master@{#46372}
These were originally written as part of
https://chromium-review.googlesource.com/c/550396/. I've separated them
out into a separate CL with the intent of landing it first, so that it's
easier to see the difference these CLs will have on generated bytecode.
BUG=v8:5855
TBR=tebbi@chromium.org, rmcilroy@chromium.org
Change-Id: Ib84e65847d7396e31b0e38d28f59454cf7c58fc1
Reviewed-on: https://chromium-review.googlesource.com/558221
Reviewed-by: Caitlin Potter <caitp@igalia.com>
Commit-Queue: Caitlin Potter <caitp@igalia.com>
Cr-Commit-Position: refs/heads/master@{#46370}
`IsHoleyElementsKind` doesn’t just check for holeyness — it checks for
dictionary elements as well. Its name should reflect that.
This patch renames `IsHoleyElementsKind` to
`IsHoleyOrDictionaryElementsKind`, which makes it possible to rename
`IsFastHoleyElementsKind` to `IsHoleyElementsKind` in a future patch.
R=jkummerow@chromium.org, cbruni@chromium.org
BUG=v8:6548
Change-Id: Id799fe396442e9810426145359254d60990f8492
Reviewed-on: https://chromium-review.googlesource.com/558344
Reviewed-by: Igor Sheludko <ishell@chromium.org>
Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
Commit-Queue: Mathias Bynens <mathias@chromium.org>
Cr-Commit-Position: refs/heads/master@{#46367}
This CL updates the wasm spec tests. In addition it adds an
assertNotEquals function to mjsunit.js, and it fixes the test harness
to not call quit() because it causes a dead-lock in combination with
async compilation.
R=rossberg@chromium.org
Change-Id: I50cf737993adb3e2bd27977efe7e20e304b89078
Reviewed-on: https://chromium-review.googlesource.com/558077
Reviewed-by: Andreas Rossberg <rossberg@chromium.org>
Commit-Queue: Andreas Haas <ahaas@chromium.org>
Cr-Commit-Position: refs/heads/master@{#46366}
Replace the second level visitation with a much simpler logic that
just separately dispatches the special cases. All other cases can
use a dispatch that just evacuates an object based on size.
This is similar to the logic used in the mark-compact collector. The
goal is to align behaviors as much as possible, highlighting and
fixing performance issues in the different behaviors.
This CL is mechanical as possible. A followup will clean
up the naming scheme and dispatching.
Bug: chromium:738368
Change-Id: Ia5a426c5ebb25230000b127580c300c97cff8b1b
Reviewed-on: https://chromium-review.googlesource.com/558060
Commit-Queue: Michael Lippautz <mlippautz@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#46364}
The `FAST_` prefix doesn’t make much sense — they’re all just different cases
with their own optimizations. Packedness being implicit (e.g. `FAST_ELEMENTS`
vs. `FAST_HOLEY_ELEMENTS`) is not ideal, either.
This patch renames the FAST elements kinds as follows:
- e.g. FAST_ELEMENTS => PACKED_ELEMENTS
- e.g. FAST_HOLEY_ELEMENTS => HOLEY_ELEMENTS
The following exceptions are left intact, for lack of a better name:
- FAST_SLOPPY_ARGUMENTS_ELEMENTS
- SLOW_SLOPPY_ARGUMENTS_ELEMENTS
- FAST_STRING_WRAPPER_ELEMENTS
- SLOW_STRING_WRAPPER_ELEMENTS
This makes it easier to reason about elements kinds, and less confusing to
explain how they’re used.
R=jkummerow@chromium.org, cbruni@chromium.org
BUG=v8:6548
Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng
Change-Id: Ie7c6bee85583c3d84b730f7aebbd70c1efa38af9
Reviewed-on: https://chromium-review.googlesource.com/556032
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Commit-Queue: Mathias Bynens <mathias@chromium.org>
Cr-Commit-Position: refs/heads/master@{#46361}
Allocates the Await success/failure closures, their context, and
the two required JSPromise objects all at once in a single call,
rather than performing multiple allocations throughout the function.
Saves about 2kb of snapshot space on an x64.release build.
Performance impact of this change has not been measured yet.
BUG=v8:4483
R=ishell@chromium.org, jgruber@chromium.org
Change-Id: I8d911cb91f5d0e00544ad3ba608aa170f6b2f704
Reviewed-on: https://chromium-review.googlesource.com/549999
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Commit-Queue: Caitlin Potter <caitp@igalia.com>
Cr-Commit-Position: refs/heads/master@{#46360}
Catch prediction for optimized frames had two issues:
Inlined frames were iterated from caller-to-callee (which could
result in incorrect predictions if one frame predicted CAUGHT and
another predicted PROMISE).
When encountering a builtin frame, we'd unconditionally return its
prediction (which is wrong if it predicted UNCAUGHT and another inlined
frame predicted either CAUGHT or PROMISE).
This CL fixes both issues and refactors the function to reduce nesting.
BUG=v8:6536
Change-Id: I764a4ec033e4476bd840134b5eacfe0e08b3c1a4
Reviewed-on: https://chromium-review.googlesource.com/555519
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#46358}
V8's catch prediction mechanism tries to predict whether a thrown
exception will be caught, just by looking at the current call stack.
At the time when catch prediction was first introduced, only a few
builtins (mostly related to Promise and Generator) could end up being
fed into the catch prediction mechanism. This is no longer the case now
that builtins are used in new ways, e.g. Array.p.forEach's continuation
builtins.
This CL removes the need to explicitly mark all builtins visible to the
StackFrameIterator as CAUGHT/UNCAUGHT/PROMISE, and instead defaults to
treating unmarked builtins as UNCAUGHT.
BUG=v8:6536
Change-Id: Ibdc106a91b2b0ffb93099433077642cad02c71e2
Reviewed-on: https://chromium-review.googlesource.com/555518
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#46357}
... and set the instance class name in a bootstrapper instead.
Change-Id: Ie8a9a0e7cdc22ca19616b4a0d09665e059cd4d3e
Reviewed-on: https://chromium-review.googlesource.com/557864
Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Commit-Queue: Igor Sheludko <ishell@chromium.org>
Cr-Commit-Position: refs/heads/master@{#46356}
With FCG no longer able to deoptimize, we can remove the "push" version
of output frame state combine, as deoptimisation to bytecode is always
the PokeAt variant.
Bug: v8:6409
Change-Id: I9b6d38a7441ca834835615c238228fa8a75a027b
Reviewed-on: https://chromium-review.googlesource.com/557866
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#46355}
Building on Windows with gyp fails depending on the result from
sharding the src/v8.gyp:v8_base target. If two source files with the
same name are in the same shard, their output object file path would
conflict with one another. One example of this conflict is v8_base's
runtime/runtime.cc and the V8 inspector's protocol/Runtime.cpp that
is generated at build time, for which the files runtime.obj and
Runtime.obj would be created, but MSVS overwrites one of them with
the other.
Dividing the .obj output path by the original source's extension
prevents this overwrite.
Refs: https://github.com/nodejs/node/pull/13959
Bug:
Change-Id: I158e6178f2511297899ee50ea159f574916f903f
Reviewed-on: https://chromium-review.googlesource.com/556599
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#46354}
This reverts commit 1520a8518a.
Reason for revert: This CL does not do what it should. All tasks which access the isolate have to be cancelable to guarantee that the isolate still exists when the task is executed. Foreground compilation tasks access the isolate, so they cannot be just normal tasks.
Original change's description:
> [wasm] Run foreground compilation tasks as normal tasks
>
> This CL makes foreground compilation tasks normal (i.e. not cancelable)
> again, because otherwise a deadlock can happen. I think the reason why
> the foreground tasks were cancelable was to make sure that all tasks
> either finish correctly or get canceled. However, since the isolate can
> only shut down on the main thread, this means that the foreground task
> should have already finished when the isolate shuts down, or it should
> not have started at all. I reordered the deletion of the AsyncCompileJob
> though to make sure that an AsyncCompileJob is removed from
> CompilationManager before its promise is resolved.
>
> Here is the deadlock: The JS code which is executed after a promise is
> resolved is executed within the task which resolves the promise. In case
> of async compilation this means that some JS code is executed within a
> CompileTask. In JS, the shutdown of the isolate can be triggered. During
> the shutdown of the isolate, the CancelableTaskManager waits for all
> registered cancelable tasks to complete, including the CompileTask of
> async compilation. This means that the CancelableTaskManager waits for
> itself to finish, which is a deadlock.
>
> R=clemensh@chromium.org, mtrofin@chromium.org
>
> Change-Id: I9f8c7fb2cfc5b9bfc53c761010b1590293bb82c9
> Reviewed-on: https://chromium-review.googlesource.com/554733
> Commit-Queue: Andreas Haas <ahaas@chromium.org>
> Reviewed-by: Mircea Trofin <mtrofin@chromium.org>
> Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#46343}
TBR=mtrofin@chromium.org,ahaas@chromium.org,clemensh@chromium.org
Change-Id: I60fab90b46d70c703d827816503e7e23b8c50251
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/558284
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Commit-Queue: Andreas Haas <ahaas@chromium.org>
Cr-Commit-Position: refs/heads/master@{#46353}
This CL landed on top of another CL which I want to revert.
This reverts commit 27b0d6a9fc.
Reason for revert: <INSERT REASONING HERE>
Original change's description:
> [wasm] Update spec tests
>
> Update the spec tests in v8 to the most recent version.
>
> R=rossberg@chromium.org
> CC=titzer@chromium.org
>
> Change-Id: Ib4e809c20150502b131a2c0b68fdb2ede1d5f85f
> Reviewed-on: https://chromium-review.googlesource.com/552155
> Commit-Queue: Andreas Haas <ahaas@chromium.org>
> Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
> Reviewed-by: Andreas Rossberg <rossberg@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#46346}
TBR=mstarzinger@chromium.org,rossberg@chromium.org,ahaas@chromium.org
Change-Id: I82e4a2887bcb867d3572b78c36a20adc05df0903
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/558040
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Commit-Queue: Andreas Haas <ahaas@chromium.org>
Cr-Commit-Position: refs/heads/master@{#46352}
It can happen that coverage infos for a function containing
IncBlockCounter bytecodes can be deleted (e.g. by switching to
best-effort coverage). Handle this case correctly in the IncBlockCounter
runtime function.
BUG=v8:6000
Change-Id: I49b9f52822661150d55410d6b173b3929adf4af2
Reviewed-on: https://chromium-review.googlesource.com/558039
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Cr-Commit-Position: refs/heads/master@{#46351}
This reverts commit ca93156294.
Reason for revert: tsan:
https://build.chromium.org/p/client.v8/builders/V8%20Linux64%20TSAN/builds/16007
Original change's description:
> [wasm] Allow the initialization of a single compilation unit
>
> This CL adds a new function {InitializeCompilationUnit} to initialize
> a single compilation unit and not just all compilation units at once.
> This is necessary for streaming compilation eventually. This also
> required some refactoring on how the working queue for compilation units
> works. Previously the synchronization was done with an atomic counter,
> now it is done with a lock. Note that the code to finish compilation
> of a module still only works if the working queue gets only empty when
> all work is done. I plan to change this in a different CL.
>
> Since the code would not be tested without streaming compilation, I added
> an experimental flag and a test to test the new code.
>
> R=clemensh@chromium.org, mtrofin@chromium.org
>
> Change-Id: I839c04fd78d1ea8e1db202f2cbed41c4c2cf4f28
> Reviewed-on: https://chromium-review.googlesource.com/550096
> 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@{#46348}
TBR=mtrofin@chromium.org,ahaas@chromium.org,clemensh@chromium.org
Change-Id: Ied6532f05463c0b78c8b8f5307d44640bcca8316
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/558224
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#46350}
This reverts commit 0d2ed6c328.
The CL introduced perf regressions: crbug.com/735649.
We are going to reland the CL in an isolated V8 roll to ensure
that perf regressions are attributed correctly.
Original commit message:
> [heap] Allow a minimum semi-space size of 512K.
> This CL also reduces the minimum semi-space size to 512K.
> BUG=chromium:716032
BUG=chromium:735649
Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng
Change-Id: I1f1b08ca6853347c00070f000c309d839ff8a4bb
Reviewed-on: https://chromium-review.googlesource.com/552541
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Commit-Queue: Ulan Degenbaev <ulan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#46349}
This CL adds a new function {InitializeCompilationUnit} to initialize
a single compilation unit and not just all compilation units at once.
This is necessary for streaming compilation eventually. This also
required some refactoring on how the working queue for compilation units
works. Previously the synchronization was done with an atomic counter,
now it is done with a lock. Note that the code to finish compilation
of a module still only works if the working queue gets only empty when
all work is done. I plan to change this in a different CL.
Since the code would not be tested without streaming compilation, I added
an experimental flag and a test to test the new code.
R=clemensh@chromium.org, mtrofin@chromium.org
Change-Id: I839c04fd78d1ea8e1db202f2cbed41c4c2cf4f28
Reviewed-on: https://chromium-review.googlesource.com/550096
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@{#46348}
