Fixing clang-tidy warning.

Bug: v8:8015
Cq-Include-Trybots: luci.v8.try:v8_linux_noi18n_rel_ng
Change-Id: Ie05d919cfd5cc4447c00603c8a46e975ad85cce3
Reviewed-on: https://chromium-review.googlesource.com/1224378Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Commit-Queue: Florian Sattler <sattlerf@google.com>
Cr-Commit-Position: refs/heads/master@{#55901}

This test was disabled because of flakes. This should be fixed now.

R=ahaas@chromium.org

Bug: v8:7872
Change-Id: I288f3776ca7f946caf20a66f1cdf5d37bd6ba245
Reviewed-on: https://chromium-review.googlesource.com/1224376Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#55900}

The test debug-live-edit-recursion flakily fails predictable testing and should
match the status file rule debug-liveedit-* that skips the other ~10 liveedit
tests.

Bug: v8:8147
Change-Id: I9d88b44d97daa09914e0fa46fb204e85c1e7344c
Reviewed-on: https://chromium-review.googlesource.com/1224430Reviewed-by: Yang Guo <yangguo@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#55899}

This implements the five sign extension opcodes for ia32 and x64 (and
bails out on other architectures).

R=titzer@chromium.org

Bug: v8:6600
Change-Id: Ibb8bae0e229e276b346f2d054b51864a0995a096
Reviewed-on: https://chromium-review.googlesource.com/1174533
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Reviewed-by: Ben Titzer <titzer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#55898}

This reverts commit 99e13e58.

Reason for revert: Reverting in favor of a general mechanism for this in Torque.

Original change's description:
> [builtins] Add FastCallFunction builtin that elides some checks
> 
> This CL adds a new "Call" stub that can be used by builtins that will
> call the same JS call-back function often (e.g. compare function in
> Array.p.sort). The checks have to be done upfront once, but can then
> be omitted.
> 
> R=​jgruber@chromium.org
> 
> Bug: v8:7861
> Change-Id: Id6e4ca27c3d488a7b1f708cbcb4cbe6cc382513e
> Reviewed-on: https://chromium-review.googlesource.com/1208574
> Commit-Queue: Simon Zünd <szuend@google.com>
> Reviewed-by: Jakob Gruber <jgruber@chromium.org>
> Reviewed-by: Camillo Bruni <cbruni@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#55769}

TBR=cbruni@chromium.org,jgruber@chromium.org,szuend@google.com

# Not skipping CQ checks because original CL landed > 1 day ago.

Bug: v8:7861
Change-Id: I47260993ef2a16bd5348bb0b46da4d34d33ea10b
Reviewed-on: https://chromium-review.googlesource.com/1226871
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Cr-Commit-Position: refs/heads/master@{#55897}

Fixing clang-tidy warning.

Bug: v8:8015
Change-Id: I8546c58afbac278a764067173570b433dff6674d
Reviewed-on: https://chromium-review.googlesource.com/1224413Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Commit-Queue: Florian Sattler <sattlerf@google.com>
Cr-Commit-Position: refs/heads/master@{#55896}

We are currently wrapping the pointer to the instruction start in a
Foreign. The argument buffer, which is also a raw pointer, is passed
directly though.
This CL changes this to also pass the code entry as a raw pointer.

R=mstarzinger@chromium.org

Change-Id: Id7344efa589a5297339ec01c3cfa7688bcc706b3
Reviewed-on: https://chromium-review.googlesource.com/1226970Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#55895}

NOTRY=true

Change-Id: I28637031771ab994c3f4b7fe642eddfce9c69b16
Reviewed-on: https://chromium-review.googlesource.com/1225976Reviewed-by: Marja Hölttä <marja@chromium.org>
Commit-Queue: Florian Sattler <sattlerf@google.com>
Cr-Commit-Position: refs/heads/master@{#55894}

This reland of the commit e938b7a3.


Original change's description:
> Enable OneShot optimizations by default
>
> BUG=v8:8072
>
> Change-Id: I2068d66644628fe1de7a6be30b8d43ecfae04e93
> Reviewed-on: https://chromium-review.googlesource.com/1220047
> Commit-Queue: Chandan Reddy <chandanreddy@google.com>
> Reviewed-by: Camillo Bruni <cbruni@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#55875}

TBR=cbruni@chromium.org,chandanreddy@google.com

Change-Id: I2152d4f3886913ef7ffabf8611c3448299560d2b
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: v8:8072
Reviewed-on: https://chromium-review.googlesource.com/1224933
Commit-Queue: Chandan Reddy <chandanreddy@google.com>
Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Cr-Commit-Position: refs/heads/master@{#55893}

Tbr: hpayer@chromium.org
Change-Id: I3f10ee70a9f9990e0259095826ac40371a96bac5
Reviewed-on: https://chromium-review.googlesource.com/1225756
Commit-Queue: Georg Neis <neis@chromium.org>
Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#55892}

Change-Id: If90c13658713cbfdf06200e49773e67495dce85b
Reviewed-on: https://chromium-review.googlesource.com/1225754Reviewed-by: Michael Stanton <mvstanton@chromium.org>
Commit-Queue: Georg Neis <neis@chromium.org>
Cr-Commit-Position: refs/heads/master@{#55891}

Bug: v8:7790
Change-Id: I3077883a8509a988090d2c051e5bd85c139a38e6
Reviewed-on: https://chromium-review.googlesource.com/1224326
Commit-Queue: Georg Neis <neis@chromium.org>
Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
Reviewed-by: Maya Lekova <mslekova@chromium.org>
Cr-Commit-Position: refs/heads/master@{#55890}

Additionally:
- Remove partiality from ContextRef::previous as long
  as we don't need it.
- Fix a nasty bug in serialization dispatch (the order
  of types was incorrect).

Bug: v8:7790
Change-Id: I354a69cf37e1dcdd691aab8af668c5cef165cf1e
Reviewed-on: https://chromium-review.googlesource.com/1224438Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
Reviewed-by: Maya Lekova <mslekova@chromium.org>
Commit-Queue: Georg Neis <neis@chromium.org>
Cr-Commit-Position: refs/heads/master@{#55889}

This reverts commit 836773c0.

Reason for revert: Breaks full-debug support:
https://ci.chromium.org/p/v8/builders/luci.v8.ci/V8%20Linux%20-%20full%20debug/5493

Original change's description:
> Implement v8::internal::MicrotaskQueue::EnqueueMicrotask
> 
> This adds `queue` and `pending_microtask_count` as members of
> v8::internal::MicrotaskQueue, and implements its EnqueueMicrotask.
> The implementation itself is similar to Isolate::EnqueueMicrotask.
> 
> Bug: v8:8124
> Change-Id: Idb5c50b2add96b72cbe9e36aeec7cb568072f0cb
> Reviewed-on: https://chromium-review.googlesource.com/1205430
> Commit-Queue: Taiju Tsuiki <tzik@chromium.org>
> Reviewed-by: Adam Klein <adamk@chromium.org>
> Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#55884}

TBR=ulan@chromium.org,adamk@chromium.org,hpayer@chromium.org,tzik@chromium.org

Change-Id: I299884eb6b41fcbff7c486cad636ab7b9821dfe3
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: v8:8124
Reviewed-on: https://chromium-review.googlesource.com/1225752Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#55888}

Reduce the number of workers in the atomic compare-exchange test to
make it run faster on systems with few cores.

Bug: v8:8164
Change-Id: I4de22863e1f2a44d9da4416161d08f5acfcece22
Reviewed-on: https://chromium-review.googlesource.com/1224771
Commit-Queue: Stephan Herhut <herhut@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#55887}

This adds support to TurboFan's representation selection for the Word64
representation, and makes use of that to handle indices for memory access
and allocation instructions (i.e. LoadElement, StoreElement, Allocate,
etc.). These instructions had previously used Word32 as representation
for the indices / sizes, and then internally converted it to the correct
representation (aka Word64 on 64-bit architectures) later on, but that
was kind of brittle, and sometimes led to weird generated code.

The change thus only adds support to convert integer values in the safe
integer range from all kinds of representations to Word64 (on 64-bit
architectures). We don't yet handle the opposite direction and none of
the representation selection heuristics for the numeric operations were
changed so far. This will be done in follow-up CLs.

This CL itself is supposed to be neutral wrt. functionality, and only
serves as a starting point, and a cleanup for the (weird) implicit
Word64 index/size handling.

Bug: v8:7881, v8:8015, v8:8171
Design-Document: http://bit.ly/turbofan-word64
Change-Id: I3c6961a0e96cbc3fb8ac9d3e1be8f2e5c89bfd25
Cq-Include-Trybots: luci.chromium.try:linux_chromium_headless_rel
Reviewed-on: https://chromium-review.googlesource.com/1224932
Commit-Queue: Benedikt Meurer <bmeurer@chromium.org>
Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#55886}

This truncation doesn't have a proper meaning anyways and has never been
used inside the representation selection. For pointer fields we also
don't need to pass on a truncation anyways.

Bug: v8:8015
Change-Id: I5ff49e20b70fa70d6bcf7401a357cd7ad9f1a938
Reviewed-on: https://chromium-review.googlesource.com/1226870
Commit-Queue: Benedikt Meurer <bmeurer@chromium.org>
Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#55885}

This adds `queue` and `pending_microtask_count` as members of
v8::internal::MicrotaskQueue, and implements its EnqueueMicrotask.
The implementation itself is similar to Isolate::EnqueueMicrotask.

Bug: v8:8124
Change-Id: Idb5c50b2add96b72cbe9e36aeec7cb568072f0cb
Reviewed-on: https://chromium-review.googlesource.com/1205430
Commit-Queue: Taiju Tsuiki <tzik@chromium.org>
Reviewed-by: Adam Klein <adamk@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#55884}

Fixing clang-tidy warning.

Bug: v8:8015
Change-Id: If9a66df529dc5870f6d5146d9a83d22367ffdc59
Reviewed-on: https://chromium-review.googlesource.com/1224114Reviewed-by: Marja Hölttä <marja@chromium.org>
Commit-Queue: Florian Sattler <sattlerf@google.com>
Cr-Commit-Position: refs/heads/master@{#55883}

TBR=herhut@chromium.org
NOTRY=true

Bug: v8:8164
Change-Id: Ifcf4b7bce70b8dd1c4aba129a9061dfb6056474e
Reviewed-on: https://chromium-review.googlesource.com/1226612Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#55882}

Rolling v8/build: https://chromium.googlesource.com/chromium/src/build/+log/8e97ee7..e021b7c

Rolling v8/third_party/catapult: https://chromium.googlesource.com/catapult/+log/03b5af9..3e07166

Rolling v8/third_party/depot_tools: https://chromium.googlesource.com/chromium/tools/depot_tools/+log/dfce68b..b5e8781

TBR=machenbach@chromium.org,hablich@chromium.org,sergiyb@chromium.org

Change-Id: I19544c94e5df4eb0a98d0187ed181abba809d4c0
Reviewed-on: https://chromium-review.googlesource.com/1226413
Commit-Queue: V8 Autoroller <v8-ci-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com>
Reviewed-by: V8 Autoroller <v8-ci-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/master@{#55881}

Also fix type-check to check receiver for JSReceiver, not JSObject,
and add a test for DateTimeFormat verifying that it already
has the proper behavior.

Bug: chromium:881023
Cq-Include-Trybots: luci.v8.try:v8_linux_noi18n_rel_ng
Change-Id: I950c86094dfb9634e0b7e49bcbbb022fa81a71f7
Reviewed-on: https://chromium-review.googlesource.com/1225612
Commit-Queue: Adam Klein <adamk@chromium.org>
Reviewed-by: Sathya Gunasekaran <gsathya@chromium.org>
Cr-Commit-Position: refs/heads/master@{#55880}

R=joransiu@ca.ibm.com

Change-Id: Icfbd76b8da133bf39960f1c172cd872876e2cf3e
Reviewed-on: https://chromium-review.googlesource.com/1225672Reviewed-by: Joran Siu <joransiu@ca.ibm.com>
Commit-Queue: Junliang Yan <jyan@ca.ibm.com>
Cr-Commit-Position: refs/heads/master@{#55879}

This CL enables source maps support for wasm. Devtools should
be able to pick up source_mapping_url parsed here and load the
corresponding source maps.

R=kozyatinskiy@chromium.org,clemensh@chromium.org,titzer@chromium.org,yangguo@chromium.org
BUG=v8:8081

Cq-Include-Trybots: luci.chromium.try:linux_chromium_headless_rel;luci.chromium.try:linux_chromium_rel_ng;master.tryserver.blink:linux_trusty_blink_rel
Change-Id: I1db0ff597d229e7db8d383fe9ee081c7fa4e7648
Reviewed-on: https://chromium-review.googlesource.com/1185973
Commit-Queue: Aseem Garg <aseemgarg@chromium.org>
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Reviewed-by: Aleksey Kozyatinskiy <kozyatinskiy@chromium.org>
Cr-Commit-Position: refs/heads/master@{#55878}

Previously the [[ArrayBufferByteLength]] internal field was represented
as a boxed number (i.e. either Smi or HeapNumber) in safe integer range.
This is the first step to change the representation of all the array
buffer and array buffer view length/offset fields to unboxed integers,
to eventually support the full range of 4GiB (and potentially even more)
for typed arrays and array buffers. This will allow WebAssembly memories
with 4GiB to be usable.

Tbr: yangguo@chromium.org
Bug: v8:7881, v8:8015, v8:8171
Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng
Change-Id: Ic6c6c8fe087afee898254cd903e82a55bfc173a9
Reviewed-on: https://chromium-review.googlesource.com/1222309Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Ben Titzer <titzer@chromium.org>
Commit-Queue: Benedikt Meurer <bmeurer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#55877}

This reverts commit e938b7a3.

Reason for revert: Reverting because of gc-stress failures - https://ci.chromium.org/p/v8/builders/luci.v8.ci/V8%20Linux%20-%20gc%20stress/18299

Original change's description:
> Enable OneShot optimizations by default
> 
> BUG=v8:8072
> 
> Change-Id: I2068d66644628fe1de7a6be30b8d43ecfae04e93
> Reviewed-on: https://chromium-review.googlesource.com/1220047
> Commit-Queue: Chandan Reddy <chandanreddy@google.com>
> Reviewed-by: Camillo Bruni <cbruni@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#55875}

TBR=cbruni@chromium.org,chandanreddy@google.com

Change-Id: If3bfb5e142a873f534f831da413d26e78d2e3716
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: v8:8072
Reviewed-on: https://chromium-review.googlesource.com/1224481Reviewed-by: Deepti Gandluri <gdeepti@chromium.org>
Commit-Queue: Deepti Gandluri <gdeepti@chromium.org>
Cr-Commit-Position: refs/heads/master@{#55876}

BUG=v8:8072

Change-Id: I2068d66644628fe1de7a6be30b8d43ecfae04e93
Reviewed-on: https://chromium-review.googlesource.com/1220047
Commit-Queue: Chandan Reddy <chandanreddy@google.com>
Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Cr-Commit-Position: refs/heads/master@{#55875}

It turned out that the original implementation was broken
from the beginning. This patch fixes the API to return
the correct one.

GetIncumbentContext was implemented at
https://chromium-review.googlesource.com/c/v8/v8/+/536728

Change-Id: Iba29171bac10ed82575a8079396768a9d5af3b13
Bug: chromium:883036
Reviewed-on: https://chromium-review.googlesource.com/1219368
Commit-Queue: Yuki Shiino <yukishiino@chromium.org>
Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Cr-Commit-Position: refs/heads/master@{#55874}

Minor fixes of things found in the code walkthrough.

R=titzer@chromium.org

Bug: v8:8015
Change-Id: If28be312fb7b8e5add214161a98d25145cdf8de5
Reviewed-on: https://chromium-review.googlesource.com/1224433
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Reviewed-by: Ben Titzer <titzer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#55873}

Bug: v8:8163
Change-Id: I2aacbb13dc16772b173d56051a84399b8c34d4f2
Reviewed-on: https://chromium-review.googlesource.com/1224417
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Reviewed-by: Igor Sheludko <ishell@chromium.org>
Cr-Commit-Position: refs/heads/master@{#55872}

Fixing clang-tidy warning.

Bug: v8:8015
Cq-Include-Trybots: luci.chromium.try:linux_chromium_headless_rel;master.tryserver.blink:linux_trusty_blink_rel
Change-Id: I3a09bb6936853bca448f425d4266365deb6671d4
Reviewed-on: https://chromium-review.googlesource.com/1220146Reviewed-by: Marja Hölttä <marja@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Reviewed-by: Hannes Payer <hpayer@chromium.org>
Commit-Queue: Florian Sattler <sattlerf@google.com>
Cr-Commit-Position: refs/heads/master@{#55871}

Just a minor fix to skip the third GC after which we fail anyway.

R=ulan@chromium.org

Bug: v8:7621
Change-Id: I4dd6bcedc20ecb75dc06af02649ff5c7b67317d0
Reviewed-on: https://chromium-review.googlesource.com/1224434Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#55870}

R=clemensh@chromium.org
BUG=v8:8015

Change-Id: Ib40817fffe64a7b8774b7f33adf7552284859064
Reviewed-on: https://chromium-review.googlesource.com/1224435Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Commit-Queue: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#55869}

Change-Id: Ia442ada5d15cfaa74877b07857a01d5040a7e0f2
Reviewed-on: https://chromium-review.googlesource.com/1224416Reviewed-by: Marja Hölttä <marja@chromium.org>
Commit-Queue: Florian Sattler <sattlerf@google.com>
Cr-Commit-Position: refs/heads/master@{#55868}

Store it as FixedArray instead of Object. Use the empty array as
uninitialized value instead of undefined.

R=titzer@chromium.org

Bug: v8:8015
Change-Id: I53275dc5fd2c3a0db1e021ee4da0fc0694e2053e
Reviewed-on: https://chromium-review.googlesource.com/1224372Reviewed-by: Ben Titzer <titzer@chromium.org>
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#55867}

Fixing clang-tidy warning.

Bug: v8:8015
Change-Id: Ib3b6bdeb404ed6fe9c69107b4683a99c96dd8352
Reviewed-on: https://chromium-review.googlesource.com/1224053Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Commit-Queue: Florian Sattler <sattlerf@google.com>
Cr-Commit-Position: refs/heads/master@{#55866}

Fixing clang-tidy warning.

Bug: v8:8015
Change-Id: Ibe5906fa96f2d7327bce1eff70637a2d00f99668
Reviewed-on: https://chromium-review.googlesource.com/1224030Reviewed-by: Hannes Payer <hpayer@chromium.org>
Commit-Queue: Florian Sattler <sattlerf@google.com>
Cr-Commit-Position: refs/heads/master@{#55865}

R=clemensh@chromium.org
BUG=v8:8015

Change-Id: I4baed1edb43e6aa8b345a515b1f732019eac3bd6
Reviewed-on: https://chromium-review.googlesource.com/1224415Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Commit-Queue: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#55864}

HeapObject::GetHeap and HeapObject::GetIsolate are gone since
https://crrev.com/c/1140319 (landed in July), hence we can clean up the
using declarations to force use of the methods declared in
NeverReadOnlySpaceObject.

R=delphick@chromium.org

Bug: v8:7786
Change-Id: Iec4edd394ac57a3f378dd1a9a100320e82cf8ea5
Reviewed-on: https://chromium-review.googlesource.com/1224414Reviewed-by: Dan Elphick <delphick@chromium.org>
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#55863}

No-try: true
Tbr: machenbach@chromium.org
Bug: v8:8169
Change-Id: I973494d9e714c22d255435caa1f35a359a5dd2d1
Reviewed-on: https://chromium-review.googlesource.com/1224437Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Commit-Queue: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#55862}