Commit Graph

23501 Commits

Author SHA1 Message Date
Ulan Degenbaev
f7adf5f569 Avoid deduplication overhead for backing stores managed by embedder
If a BackingStore is marked as !free_on_destruct, then we don't have to
guarantee that there is only one such BackingStore pointing to the
underlying buffer. So we can skip costly registration in process-global
table of backing stores.

Bug: v8:9380,chromium:1002693
Change-Id: Iad1ec5c4811d6c52a9a9d78dd700acf69170db60
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1815136
Commit-Queue: Ulan Degenbaev <ulan@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63941}
2019-09-24 10:39:25 +00:00
Igor Sheludko
d68bf369cb Reland "[ptr-compr] Switch to 31 bit Smis on 64-bit architectures"
This is a reland of 12a9ee3a5b

Fixed arm64 disasm test.

Original change's description:
> [ptr-compr] Switch to 31 bit Smis on 64-bit architectures
>
> 32 bit Smis are incompatible with pointer compression so we land disable
> them before enabling pointer compression in order to separate memory and
> performance regressions caused by 31 bit Smis from pointer compression
> change.
>
> Bug: v8:9767
> Change-Id: I3d4a675df4208f808b1ba6e7816be545eae0dc24
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1815249
> Reviewed-by: Toon Verwaest <verwaest@chromium.org>
> Commit-Queue: Igor Sheludko <ishell@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#63934}

Bug: v8:9767
Change-Id: Ife46a4240141dd89d841eac152032ad6ca471810
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1820939
Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Commit-Queue: Igor Sheludko <ishell@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63940}
2019-09-24 10:34:25 +00:00
Ulan Degenbaev
c199f828a8 Fix initalization of embedder fields for ArrayBuffers
This moves the initialization to JSArrayBuffer::SetupEmpty, which is the
proper bottleneck for all paths constructing array buffers.

Bug: chromium:1006600,v8:9380
Change-Id: I1887cb867627d69ade20654e5bc372b1ba1ac4e3
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1815132
Reviewed-by: Yang Guo <yangguo@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Commit-Queue: Ulan Degenbaev <ulan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63939}
2019-09-24 09:39:27 +00:00
Ulan Degenbaev
39ecc997eb Fix construction of empty backing stores for SharedArrayBuffers
Bug: chromium:1006629,v8:9380
Change-Id: I8e45759fe3ad1b0ef8f1ebdb33919c84e1e8a044
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1815244
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Commit-Queue: Ulan Degenbaev <ulan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63928}
2019-09-23 13:42:29 +00:00
Michael Starzinger
d1e9b884ae [asm.js] Fix parsing of float coercion arguments.
This fixes how arguments of a call to {fround} are being parsed. It now
accepts a single "AssignmentExpression" only instead of an "Expression"
which could potentially be a whole comma-separated list of expressions.

R=clemensh@chromium.org
TEST=mjsunit/regress/regress-crbug-1006592
BUG=chromium:1006592

Change-Id: Ifaf0c2b048e4ec18429cc6039c0e7dcdecc1d0bb
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1815255
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Commit-Queue: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63926}
2019-09-23 12:26:26 +00:00
Michael Starzinger
ca02d58b34 [wasm] Load call builtin in JS-to-JS wrappers.
This loads the call builtin from the Isolate root instead of embedding
it into the instruction stream. This can be more efficient, but more
importantly it fixes an issue with tracing and eventually allows for
background compilation of these wrappers.

R=clemensh@chromium.org
TEST=mjsunit/regress/wasm/regress-crbug-1006631
BUG=chromium:1006631

Change-Id: Ife1bc513340d233a3c01789c7b56126fe3b87f6f
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1815245
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Commit-Queue: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63924}
2019-09-23 10:43:51 +00:00
Clemens Hammacher
6b6c2317fe Revert "[wasm] Fix TODO and skip test on win32"
This reverts commit ad83fa921b.

Reason for revert: Crashes odroid: https://ci.chromium.org/p/v8/builders/ci/V8%20Arm%20-%20debug/11234

Original change's description:
> [wasm] Fix TODO and skip test on win32
> 
> In the {Fixed} variant, the {GrowingVsFixedModule} test first reserves
> 1GB of memory, then allocates another 1GB to add it to the module as
> code. This uses too much memory on win32, making the test fail.
> Before this CL, the {NativeModule} only reserved 128kB upfront (in
> contrast to the actual expectation of the test).
> 
> Since all other aspects of this test are already covered by other
> tests, we just skip this test on win32.
> This allows us to resolve the TODO.
> 
> Drive-by: Clean up the unittests status file a bit.
> 
> R=​mstarzinger@chromium.org
> 
> Bug: v8:9477
> Change-Id: I575dd1a3f486e1805e0256e8ee6071246f2c24c4
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1816505
> Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
> Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#63921}

TBR=mstarzinger@chromium.org,clemensh@chromium.org

Change-Id: Ia9d9b9e311ff8b7524938aeb02543bf2c01bdd27
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: v8:9477
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1815250
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63923}
2019-09-23 10:29:43 +00:00
Clemens Hammacher
ad83fa921b [wasm] Fix TODO and skip test on win32
In the {Fixed} variant, the {GrowingVsFixedModule} test first reserves
1GB of memory, then allocates another 1GB to add it to the module as
code. This uses too much memory on win32, making the test fail.
Before this CL, the {NativeModule} only reserved 128kB upfront (in
contrast to the actual expectation of the test).

Since all other aspects of this test are already covered by other
tests, we just skip this test on win32.
This allows us to resolve the TODO.

Drive-by: Clean up the unittests status file a bit.

R=mstarzinger@chromium.org

Bug: v8:9477
Change-Id: I575dd1a3f486e1805e0256e8ee6071246f2c24c4
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1816505
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63921}
2019-09-23 09:28:10 +00:00
Dan Elphick
4921821b2f [parser] Prevent lazy parsing of arrow functions
Change Parser::AllowsLazyParsingWithoutUnresolvedVariables to return
false if it may be parsing an arrow function.

Bug: v8:9758, v8:8510
Change-Id: Ic5d213d4358ff954a169c03e449197c3f050880c
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1816510
Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Commit-Queue: Dan Elphick <delphick@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63920}
2019-09-23 08:59:18 +00:00
Ng Zhi An
bcb31fe4df [wasm-simd] Fix simd 128 load and store memarg reading in interpreter
Add a new test SimdLoadStoreLoadMemargOffset to test this, without this fix
this test would have failed.

Bug: v8:9753
Change-Id: I119adda8e3c6c7adb0ad4023298bbce9c0c64a01
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1811457
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Reviewed-by: Deepti Gandluri <gdeepti@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63914}
2019-09-20 18:04:29 +00:00
Joshua Litt
10883f561a [hole-check-elimination] Simplest possible hole check elimination
doc: https://docs.google.com/document/d/1Y9uF3hS2aUrwKU56vGxlvEs_IiGgmWSzau8097Y-XBM/edit

Bug: v8:7427
Change-Id: Iedd36c146cefff7e6687fdad48d263889c5c8347
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1778902
Commit-Queue: Ross McIlroy <rmcilroy@chromium.org>
Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63913}
2019-09-20 17:27:49 +00:00
Suraj Sharma
99188fc477 [ic] Add support for StoreSlow() in Global Dispatcher
Global Objects now use the Smi handler StoreSlow() to perform
StoreGlobalIC_Slow.

Bug: chromium:1004037
Change-Id: I365ab918383525278590ca4369a4b1b0d9636d29
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1812657
Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Commit-Queue: Suraj Sharma <surshar@microsoft.com>
Cr-Commit-Position: refs/heads/master@{#63912}
2019-09-20 17:05:09 +00:00
Joshua Litt
f25edf22e7 [d8] Terminate execution instead of omitting quit in d8 asan
Bug: v8:4653
Change-Id: I2b2e0e12dc7c3734dd554aa6dd5ed71c90a77758
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1806796
Reviewed-by: Yang Guo <yangguo@chromium.org>
Commit-Queue: Joshua Litt <joshualitt@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63911}
2019-09-20 16:38:19 +00:00
Irina Yatsenko
934dd8d7f8 [tools] Add !rs command to print remembered sets.
Produces output similar to:

Remembered set in chunk 0x29d0cd40000
  <empty>
Remembered set in chunk 0x891f200000
  <empty>
Remembered set in chunk 0x2fb14780000
  bucket 0x1ff381b09d0:
    0x2fb14780128 -> 0x6d7e080119
    0x2fb14780130 -> 0x6d7e080129
    0x2fb14780138 -> 0x6d7e080139
    0x2fb14780140 -> 0x6d7e080149
    0x2fb14780148 -> 0x6d7e080159
    0x2fb14780150 -> 0x6d7e080169
    0x2fb14780158 -> 0x6d7e080179
    0x2fb14780160 -> 0x6d7e080189
    0x2fb14780168 -> 0x6d7e080199
    0x2fb14780170 -> 0x6d7e0801a9
  10 remembered pointers in chunk 0x2fb14780000
Remembered set in chunk 0x5360700000
  <empty>

0: 000> !rs
Change-Id: I783322a2648ccba8a27aae72a459c742357e8e11
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1801253
Commit-Queue: Irina Yatsenko <irinayat@microsoft.com>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Reviewed-by: Dominik Inführ <dinfuehr@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63910}
2019-09-20 16:33:09 +00:00
Joshua Litt
39cc400dea [top-level-await] Add support for top level await to d8
This cl adds support for top level await to d8, but still
does not allow top level await through parsing.
Unfortunately, due to that restriction this cl has no automated
tests, but I added a 'top-level-await' variant and manually
confirmed it passes locally.

Bug: v8:9344
Change-Id: I3528442768107f5ad1ed1e9e947cfceae91c0cc6
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1808483
Commit-Queue: Joshua Litt <joshualitt@chromium.org>
Reviewed-by: Georg Neis <neis@chromium.org>
Reviewed-by: Adam Klein <adamk@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63909}
2019-09-20 16:04:49 +00:00
Seth Brenith
1d3c4975be [tools] Use instance types of known Maps in v8_debug_helper
If we can read an object's Map pointer but not any data from the Map
itself, we may still be able to accurately describe the object's type if
the Map pointer matches one of the known Maps from the snapshot.
GetObjectProperties uses that data in one of two ways:
- If it is sure that the Map pointer matches a known Map, then it uses
  the type from that Map and continues as if it read the type normally.
- If the Map pointer is at the right offset within a heap page to match
  a known Map, but the caller didn't provide the addresses of the first
  pages in Map space or read-only space, then the type of that Map is
  just a guess and gets returned in a separate array. This gives the
  caller the opportunity to present guessed types to the user, and
  perhaps call again using the guessed type as the type hint.

Bug: v8:9376
Change-Id: I187f67b77e76699863a14534a9d635b79f654124
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1787986
Commit-Queue: Seth Brenith <seth.brenith@microsoft.com>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63908}
2019-09-20 16:00:59 +00:00
Clemens Hammacher
8ede52bacd [wasm] Skip deadlocking tests on predictable platform
The predictable platform can make tasks deadlock if the spawning task
is holding a lock that the spawn task also wants to take. This is
because the spawned task is just executed immediately within the
"context" of the spawning task.

The wasm async compile tests deadlock because the
{BackgroundCompileTask}s hold the shared {BackgroundCompileToken}
(reader lock) while spawning new tasks via {OnBackgroundTaskStopped} ->
{RestartBackgroundTasks}. The new tasks might want to cancel
compilation via {BackgroundCompileToken::Cancel}, which takes the
writer lock and hence deadlocks.
This can not happen on any other platform, since tasks are not nested
that way.

R=ahaas@chromium.org

Bug: v8:9760
No-Try: true
Change-Id: I9fc34d5de386aa5c6fdd64a1570fddcff872ec95
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1816502
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63904}
2019-09-20 10:23:14 +00:00
Clemens Hammacher
87287908b3 [wasm] Add test for creating 10k modules in one process
With --wasm-far-jump-table, it will be possible to create 10k (and
more) modules in one process. So far, we hit the virtual address space
limit around 1k modules, because each module makes a reservation of
{kMaxWasmCodeMemory} upfront. After this change, each module will only
reserve the estimated needed code size (if --wasm-far-jump-table is
set).

The test is carefully optimized to not execute too much code in the
loop, so it can still run in simulators in reasonable time. Note that
the time for actually compiling the module is spent in C++, which is
fast in simulator builds.

R=mstarzinger@chromium.org

Bug: v8:9477, v8:9651
Change-Id: If74a825d272a65b82ca5433cb648b6a2271872e8
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1811038
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63903}
2019-09-20 09:34:34 +00:00
Frank Tang
8d1b4774bf [Intl] Sync ListFormat to latest spec.
1. Add StringListFromIterable based on
https://tc39.es/proposal-intl-list-format/#sec-createstringlistfromiterable
2. Adjust other parts to sync with the new version.

Bug: v8:9747
Change-Id: I14202f2963463e6a3e9816209f087bfe8e73cb91
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1809902
Commit-Queue: Frank Tang <ftang@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63899}
2019-09-19 20:02:53 +00:00
Igor Sheludko
ecafe04b37 [ic] Fix accessor to data reconfiguration case
... in object literals.

Bug: chromium:997056
Change-Id: Ifc210ff53b751c6ef26f16b73c9ac52426a845fd
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1813021
Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Commit-Queue: Igor Sheludko <ishell@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63894}
2019-09-19 14:35:46 +00:00
Ross McIlroy
513c75116d [CSA] Ensure we only call ToName once in KeyedLoadICGeneric.
BUG=v8:6949,v8:9396,chromium:1005400

Change-Id: I18f50fc385dd83c8f1c551d1a3dc32714122eb00
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1813022
Auto-Submit: Ross McIlroy <rmcilroy@chromium.org>
Commit-Queue: Mythri Alle <mythria@chromium.org>
Reviewed-by: Mythri Alle <mythria@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63888}
2019-09-19 12:39:46 +00:00
Ulan Degenbaev
55c48820f8 [api] Add [Shared]ArrayBuffer::GetBackingStore()
This adds an additional V8 API to get the backing store of an array
buffer. Unlike the existing API, the backing store comes wrapped
in a std::shared_ptr, making lifetime management with the embedder
explicit. This obviates the need for the old GetContents() and
Externalize() APIs, which will be deprecated in a future CL.

Contributed by titzer@chromium.org


Bug: v8:9380
Change-Id: I8a87f5dc141dab684693fe536b636e33f6e45173
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1807354
Reviewed-by: Yang Guo <yangguo@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Commit-Queue: Ulan Degenbaev <ulan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63883}
2019-09-19 10:03:02 +00:00
Santiago Aboy Solanes
cd8100b61e [CSA][cleanup] TNodify builtins promise gen (pt. 2)
The promise file is too big so I am splitting it in several CLs.

TNodified:
 * AllocatePromiseReaction
 * AllocatePromiseReactionJobTask
 * AllocatePromiseResolveThenableJobTask
 * CreatePromiseResolvingFunctions
 * CreatePromiseResolvingFunctionsContext
 * CreatePromiseContext

This CL introduces some CASTs that will be deleted once the file is
TNodified in full.

Bug: v8:6949
Change-Id: Ia3006faa5e9fd0e6fa3c58511772857910326532
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1809360
Commit-Queue: Santiago Aboy Solanes <solanes@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Mythri Alle <mythria@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63882}
2019-09-19 10:01:57 +00:00
Irina Yatsenko
a0d01b658f [heap] GC should not retain filler objects tracked by deferred handles
Added tests for the scenario when the fillers would be evacuated within the
new space and when they would be promoted into the old space.

The fix is to treat the deferred handles the same as the local ones:
call FixStaleLeftTrimmedHandlesVisitor for them.

Bug: v8:9739
Change-Id: Idac233716295f53793657164561bb81f8f729065
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1809815
Commit-Queue: Irina Yatsenko <irinayat@microsoft.com>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63880}
2019-09-18 22:17:18 +00:00
Ng Zhi An
2cf821cc01 [wasm-simd] Implement QFMA and QFMS on x64
Quasi Fused Multiply-Add and Quasi Fused Multiply-Subtract performs, on floats, a + b * c and a - b * c respectively.
When there is only a single rounding, it is a fused operation. Quasi in this case means that the result can either be fused or not fused (two roundings), depending on hardware support.

It is tricky to write the test because we need to calculate the expected value, and there is no easy way to express fused or unfused operation in C++, i.e.
we cannot confirm that float expected = a + b * c will perform a fused or unfused operation (unless we use intrinsics).
Thus in the test we have a list of simple checks, plus interesting values that we know will produce different results depending on whether it was fused or not.

The difference between 32x4 and 64x2 qfma/qfms is the type, and also the values of b and c that will cause an overflow, and thus the intermediate rounding will affect the final result.
The same array can be copy pasted for both types, but with a bit of templating we can avoid that duplication.

Change-Id: I0973a3d28468d25f310b593c72f21bff54d809a7
Bug: v8:9415
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1779325
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Reviewed-by: Deepti Gandluri <gdeepti@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63878}
2019-09-18 20:25:07 +00:00
Ng Zhi An
72b8a49f7d Add disasm for vshl (register) on arm
Change-Id: Ib07ad54ef20877597dcf50a995a8f8a8e8dcb1c3
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1809816
Reviewed-by: Martyn Capewell <martyn.capewell@arm.com>
Reviewed-by: Deepti Gandluri <gdeepti@chromium.org>
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63877}
2019-09-18 19:21:06 +00:00
Benedikt Meurer
42c98392a8 [debug] Don't disable the RegExp compilation cache when debugger is active.
Disabling the RegExp compilation cache comes with performance implications,
and it doesn't seem to be necessary for debugging.

Bug: chromium:992277
Change-Id: I24841f4814bcacb18a3968c37490f201c0c1ccac
Cq-Include-Trybots: luci.chromium.try:linux-rel,win7-rel
Cq-Include-Trybots: luci.v8.try:v8_linux_gc_stress_dbg,v8_linux64_gc_stress_custom_snapshot_dbg_ng
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1805637
Commit-Queue: Benedikt Meurer <bmeurer@chromium.org>
Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63876}
2019-09-18 19:14:36 +00:00
Ingvar Stepanyan
31f44eeab0 Fix Wasm reporting to multiple inspectors
Separate creating Wasm translations from reporting them to an agent.
This is done in order to support multiple connected sessions.

Previously connecting more than one agent would fail assertion in debug
mode and overwrite translation objects over and over
(and potentially do something worse) in release mode.

Bug: v8:9725
Change-Id: I13fde5ebf6e64e7268eb6870f9c21ac9a5bed81e
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1807273
Reviewed-by: Yang Guo <yangguo@chromium.org>
Commit-Queue: Ingvar Stepanyan <rreverser@google.com>
Cr-Commit-Position: refs/heads/master@{#63867}
2019-09-18 12:48:13 +00:00
Ross McIlroy
b946521f18 [CSA][cleanup] Use Name instead of String type for var_name in KeyedLoadICGeneric.
BUG=v8:6949,v8:9396,chromium:1004912

Change-Id: Ifa8207283aadad258281bffda6d49da574402a24
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1809370
Commit-Queue: Ross McIlroy <rmcilroy@chromium.org>
Auto-Submit: Ross McIlroy <rmcilroy@chromium.org>
Reviewed-by: Sathya Gunasekaran  <gsathya@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63865}
2019-09-18 11:22:28 +00:00
Michael Starzinger
d7903dd3de [wasm] Move {WasmModuleObject::DisassembleFunction}.
This introduces {DisassembleWasmFunction} to replace the above method,
since disassembling a function is independent of the concrete module
object and hence can be done for shared decoded modules.

R=clemensh@chromium.org
BUG=v8:6847

Change-Id: I5abea2a1381a9b8d3717a55d0b2b937dfbbafefd
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1809359
Commit-Queue: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63860}
2019-09-18 09:29:34 +00:00
Deepti Gandluri
766827d25f [wasm] Enable shared GrowMemory by default
ArrayBuffer tracking has landed, turning on GrowMemory for Shared
WebAssembly.memory on by default. Enable all variants of tests based
on the new implementation.

Bug: v8:8564, v8:9221, v8:8832
Change-Id: I0ff8688636303896450b788b2ff5a7268d386050
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1808106
Commit-Queue: Deepti Gandluri <gdeepti@chromium.org>
Reviewed-by: Adam Klein <adamk@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63855}
2019-09-17 23:41:43 +00:00
Frank Tang
9849000141 [Intl] Fix m(ax|in)imumFractionDigits for currency
Fix m(ax|in)imumFractionDigits of Intl.NumberFormat
resolvedOptions are set to 0. For example, currency
instance for CPY or KRW.

Bug: chromium:1003748
Change-Id: Ia1963d8d070b066bd5afa61f8c4716a21450af05
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1807742
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Commit-Queue: Frank Tang <ftang@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63850}
2019-09-17 16:34:00 +00:00
Santiago Aboy Solanes
4dfbe61ab9 [CSA][cleanup] TNodify builtins promise gen (pt. 1)
The promise file is too big so I am splitting it in several CLs.
This is the first one.

TNodified:
 * AllocateAndInitJSPromise (three versions)
 * PerformPromiseThen
 * AllocateJSPromise

Bug: v8:6949
Change-Id: I57ae8de3f929c00a9127ea4be51ffe7703b44959
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1807370
Commit-Queue: Santiago Aboy Solanes <solanes@chromium.org>
Reviewed-by: Dan Elphick <delphick@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63849}
2019-09-17 16:30:50 +00:00
Ross McIlroy
11b819c679 [CSA][cleanup] TNodify TryToName, TryToIntPtr and TryInternalizeString.
BUG=v8:6949,v8:9396

Change-Id: Icd65e16f6b5b41ad56d1b8767a73e8ca15d05b74
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1807365
Commit-Queue: Ross McIlroy <rmcilroy@chromium.org>
Reviewed-by: Mythri Alle <mythria@chromium.org>
Reviewed-by: Sathya Gunasekaran  <gsathya@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63845}
2019-09-17 14:56:34 +00:00
Georg Neis
1f3b2d4ec2 [api] Support CreationContext() on module namespace objects
Bug: v8:9713
Change-Id: I80b8f72ce4617b314f6c4991297a6464f67cbbec
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1807364
Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Commit-Queue: Georg Neis <neis@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63844}
2019-09-17 14:55:29 +00:00
Mu Tao
1da56e6881 [mips][heap] Remove dynamic allocation flag on NewNumber functions
Port 1dd791fca2

Original Commit Message:

    Uses templates to dispath the allocation flag statically.

Change-Id: I1d6a0f2c6ca04ac0f03afe392584e9f1e8dcfb9a
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1806680
Auto-Submit: Mu Tao <pamilty@gmail.com>
Commit-Queue: Ulan Degenbaev <ulan@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63842}
2019-09-17 14:07:59 +00:00
Andreas Haas
d8b0c1e3e7 [wasm][bulk] Update the element segment decoding to the new spec changes
The element segment encoding in the bulk memory proposal changed
recently. With this CL the V8 implementation gets up to date again.

R=thibaudm@chromium.org

Bug: v8:9658
Change-Id: I4f45d04369400356a6f3aaed9570c7870f5f97bd
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1778022
Reviewed-by: Thibaud Michaud <thibaudm@chromium.org>
Commit-Queue: Andreas Haas <ahaas@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63836}
2019-09-17 13:25:42 +00:00
Jakob Kummerow
982412d96f [tests] Speed up mjsunit/packed-elements by 1500x
Adding a %SimulateNewspaceFull runtime function speeds up this test
from 7m21s to 0.3s (on arm.optdebug with --jitless).
Bonus content:
- speed up mjsunit/md5 by 23x (5m25s -> 7.5s)
- speed up mjsunit/string-replace-gc by 8x (1m37s -> 12s)

Bug: v8:9700, v8:9396
Change-Id: Id00d0b83b51192edf1d5493b49b79b5d76e78087
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1807355
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Commit-Queue: Jakob Kummerow <jkummerow@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63829}
2019-09-17 12:05:11 +00:00
Georg Neis
c98aa0e275 Clean up deferred handle scopes
- There was no use of DisallowDeferredHandleDereference, so remove the
  corresponding assertion scope and related code.
- Make DeferredHandleScope::Detach return a unique_ptr rather than a
  raw pointer for clarity.
- Store DeferredHandles in compilation info as unique_ptr rather than
  shared_ptr, as it's never shared.
- Remove some unused methods.

Change-Id: I8327399fd291eba782820dd7a62c3bbdffedac4d
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1805645
Commit-Queue: Georg Neis <neis@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63828}
2019-09-17 11:45:55 +00:00
Andreas Haas
9d7b45620d [wasm] Check for invalid function index in init expr
R=clemensh@chromium.org

Bug: chromium:1003241
Change-Id: I2c37404746bd4807040c787490fc7851ea6988d6
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1807359
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Commit-Queue: Andreas Haas <ahaas@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63825}
2019-09-17 10:37:33 +00:00
Frank Tang
33092580ef [Intl] Better annotation of bug number
Bug: v8:9742
Change-Id: Ifd162c4c8c52efff7da98281c9dfed53a473026c
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1808405
Commit-Queue: Mathias Bynens <mathias@chromium.org>
Reviewed-by: Mathias Bynens <mathias@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63818}
2019-09-17 06:25:20 +00:00
Frank Tang
dbc824d85b [Intl] Fix resolvedOptions of PluralRule
Bug: v8:9727
Change-Id: I634902e89c0c79fb95994e0a3a971cbc7889c09c
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1803788
Commit-Queue: Frank Tang <ftang@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63816}
2019-09-16 22:00:11 +00:00
Frank Tang
133219ad5c [Intl] Throws exception on grandfather and private locale
Bug: v8:9613
Change-Id: Ie91a5bd39c82b6baf33fd84dee8420d2c4a5f504
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1803783
Commit-Queue: Frank Tang <ftang@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63815}
2019-09-16 20:59:11 +00:00
Ng Zhi An
428c2a383d [wasm-simd] Implement f32x4.sqrt for ia32
Bug: v8:8460
Change-Id: I8e72aa194cfc9797f0451d54638b6ba152d32971
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1797269
Reviewed-by: Deepti Gandluri <gdeepti@chromium.org>
Reviewed-by: Bill Budge <bbudge@chromium.org>
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63814}
2019-09-16 20:26:01 +00:00
Georg Neis
97c89ebbe2 [turbofan] Fix and simplify optimization of access on global proxy
We used to have two special cases for named accesses on the global
proxy, one based on seeing the global proxy constant in the graph and
on based on seeing the global proxy map either in the feedback or in
the graph. A change I made a while ago accidentally disabled the second
one. This CL restores that.

Moreover, given how things are set up now (this might have been
different before), the first optimization is subsumed by the second
one, so this CL also removes the first one.

Finally, this CL records an accumulator hint in the case of a load,
which improves precision of the serializer for concurrent inlining.

Tbr: tebbi@chromium.org
Bug: v8:7790
Change-Id: I255afc6c79e5c5c900b3ccfcd8459d836d21e42b
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1801954
Commit-Queue: Georg Neis <neis@chromium.org>
Reviewed-by: Michael Stanton <mvstanton@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63806}
2019-09-16 15:43:08 +00:00
Joshua Litt
798cb9045c Reland "[top-level-await] Implement top-level-await in V8"
The first land did not correctly handle exceptions for already evaluated
modules.

Original description:
Implements AsyncModules in SourceTextModule. However, there is no
support in the parser or D8 for actually creating / resolving
AsyncModules. Also adds a flag '--top-level-await,' but the only
external facing change with the flag enabled is that Module::Evaluate
returns a promise.

Bug: v8:9344
Change-Id: I24725816ee4a6c3616c3c8b08a75a60ca9f27727
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1797658
Commit-Queue: Joshua Litt <joshualitt@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Reviewed-by: Georg Neis <neis@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63803}
2019-09-16 15:29:17 +00:00
Clemens Hammacher
b53ff5f4e3 Add test mode to ignore allocation hints
This randomizes new memory allocations and reservations. It's currently
used to test far jump tables in wasm better, but might be helpful
generally for testing arbitrary virtual memory layouts.

R=mstarzinger@chromium.org

Bug: v8:9477
Change-Id: Ie60b7c6dd3c4cd0f3b9eb8e2172912e0851c357d
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1803340
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63802}
2019-09-16 15:18:27 +00:00
Jakob Kummerow
9f7ae50aa8 [ubsan] Make ARM and ARM64 UBSan-clean
Bug: v8:3770,v8:9666
Change-Id: I7b7652887d6b60fbb80e1100834bc7c9df0544d8
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1792909
Commit-Queue: Jakob Kummerow <jkummerow@chromium.org>
Reviewed-by: Martyn Capewell <martyn.capewell@arm.com>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63801}
2019-09-16 15:03:45 +00:00
Artem Serov
66f2519628 Reland "[turbofan,arm64] Add float loads poisoning."
This is a reland of 2869d9de0d

Original change's description:
> [turbofan,arm64] Add float loads poisoning.
>
> Also extend load poisoning testing for arm and arm64.
>
> This is a port of I1ef202296744a39054366f2bc424d6952c3bbe9d,
> originally introduced for arm.
>
> Change-Id: I7d317bba6be633dd1e563daa7231d3c5e930f8e4
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1691032
> Commit-Queue: Martyn Capewell <martyn.capewell@arm.com>
> Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#63519}

Change-Id: I8155456f6ad571897f6274a86e58fec6cd66ee7d
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1800583
Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
Reviewed-by: Michael Stanton <mvstanton@chromium.org>
Commit-Queue: Martyn Capewell <martyn.capewell@arm.com>
Cr-Commit-Position: refs/heads/master@{#63800}
2019-09-16 14:57:08 +00:00
Clemens Hammacher
633d8307cf [wasm] Add test for multiple code spaces
This CL adds a flag to reduce the initial code space reservation size
(--wasm-max-initial-code-space-reservation), and adds a test which creates at
least four separate code spaces and calls between them.

R=mstarzinger@chromium.org

Bug: v8:9477
Change-Id: I1b4c430266962eb94dbe4b381f46b03c2ec07fc2
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1782999
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Cr-Commit-Position: refs/heads/master@{#63797}
2019-09-16 13:57:46 +00:00