This is the last in the series of simplifying the logic to collect feedback
in compare bytecode handlers. This cl inlines the type feedback collection
for the relational compare (lessthan, lessthan or equal, greater than,
gerater than or equal) bytecode handlers.

Bug: v8:4280
Change-Id: I4a896c9cbe5628c76785882c0632bfa07b18b099
Reviewed-on: https://chromium-review.googlesource.com/500309Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Commit-Queue: Mythri Alle <mythria@chromium.org>
Cr-Commit-Position: refs/heads/master@{#45296}

- Add BasicBlock::Print method for easier inspection in gdb
- Print detailed error message in InstructionSelector::VisitControl instead
  of just a check failure

Change-Id: Ice9d70567114f014b244c1b4e41e450900030994
Reviewed-on: https://chromium-review.googlesource.com/504388
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#45295}

For a polymorphic access to o.x we would only merge it into a single
PropertyAccessInfo so far, if x is at the same offset in all maps and
the property index of x (in the descriptor arrays) is the same. But that
doesn't matter for code generation and blocks optimizations even.

BUG=v8:6278,v8:6344,v8:6396
R=jarin@chromium.org

Review-Url: https://codereview.chromium.org/2883883002
Cr-Commit-Position: refs/heads/master@{#45294}

instr(xmm, xmm/mem)
vinstr(xmm, xmm/mem)

BUG=

Review-Url: https://codereview.chromium.org/2870253003
Cr-Commit-Position: refs/heads/master@{#45293}

BUG=chromium:718820

Review-Url: https://codereview.chromium.org/2878343003
Cr-Commit-Position: refs/heads/master@{#45292}

Introduce a flag --max_inlined_nodes_small (defaults to 10), which gives
the upper limit of AST nodes for a function to be considered "small" by
the inlining heuristic. These functions will always be inlined
immediately, independent of the budget.

R=jarin@chromium.org
BUG=v8:6395,v8:6278,v8:6344,v8:6394

Review-Url: https://codereview.chromium.org/2883853002
Cr-Commit-Position: refs/heads/master@{#45291}

No semantic changes, just a readability refactoring that removes
a couple of unnecessary variables and labels.

BUG=v8:6371

Review-Url: https://codereview.chromium.org/2881763003
Cr-Commit-Position: refs/heads/master@{#45290}

R=clemensh@chromium.org

Change-Id: I616a972283cc85ccaf63c46d0cc11ccbb7563a46
Reviewed-on: https://chromium-review.googlesource.com/504527Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Commit-Queue: Michael Starzinger <mstarzinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#45289}

250K was probably still too generous and 80K leads to improvements
locally.

BUG=v8:6348

Review-Url: https://codereview.chromium.org/2876413002
Cr-Commit-Position: refs/heads/master@{#45288}

Smis can easily be handled outside the stub call without adding much to code
size.

The ToString inlining adds overhead of repeated instance type loads and checks,
but under the assumption that it is called with mostly string values it should
speed things up (a local RegExp.p[@@replace] microbenchmark shows consistent
1.6% improvements).

Drive-by-fix: Remove duplication in ToString implementations.

BUG=

Review-Url: https://codereview.chromium.org/2874423003
Cr-Commit-Position: refs/heads/master@{#45287}

With this CL SloppyArguments immediately go to dictionary elements on
deletion, keeping the arguments backing store packed.

Bug: v8:6251
Change-Id: I90d1972179447bf6810e7fe2b8e0bc8703b38d9d
Reviewed-on: https://chromium-review.googlesource.com/486921Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Commit-Queue: Camillo Bruni <cbruni@chromium.org>
Cr-Commit-Position: refs/heads/master@{#45286}

Rolling v8/build: https://chromium.googlesource.com/chromium/src/build/+log/cb040e9..63fb52b

Rolling v8/third_party/icu: https://chromium.googlesource.com/chromium/deps/icu/+log/4b06aad..87232d8

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

Change-Id: Ie82d5813078e93ce03eb5161199971efef264b7e
Reviewed-on: https://chromium-review.googlesource.com/505712Reviewed-by: v8 autoroll <v8-autoroll@chromium.org>
Commit-Queue: v8 autoroll <v8-autoroll@chromium.org>
Cr-Commit-Position: refs/heads/master@{#45285}

Rolling v8/build: https://chromium.googlesource.com/chromium/src/build/+log/3639cca..cb040e9

Rolling v8/third_party/catapult: https://chromium.googlesource.com/external/github.com/catapult-project/catapult/+log/ff3b45d..37015fb

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

Change-Id: I8fa21ea36bec3f6f235b6c0a82eef358abceeb82
Reviewed-on: https://chromium-review.googlesource.com/505868Reviewed-by: v8 autoroll <v8-autoroll@chromium.org>
Commit-Queue: v8 autoroll <v8-autoroll@chromium.org>
Cr-Commit-Position: refs/heads/master@{#45284}

Rolling v8/build: https://chromium.googlesource.com/chromium/src/build/+log/00764a8..3639cca

Rolling v8/third_party/catapult: https://chromium.googlesource.com/external/github.com/catapult-project/catapult/+log/1ff6ffc..ff3b45d

Rolling v8/tools/clang: https://chromium.googlesource.com/chromium/src/tools/clang/+log/4dfb853..162cac4

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

Change-Id: Ia06ca0b5c6f911d86fc6e6fdae197a79a84675a3
Reviewed-on: https://chromium-review.googlesource.com/505707Reviewed-by: v8 autoroll <v8-autoroll@chromium.org>
Commit-Queue: v8 autoroll <v8-autoroll@chromium.org>
Cr-Commit-Position: refs/heads/master@{#45283}

This is almost identical to V8's default array buffer allocator.  The only
difference is that 0 byte allocations are changed into 1 byte allocations.  We
do not seem to need this behavior, so it does not seem worth maintaining yet
another allocator.

Bug: 
Change-Id: I94f45f1276958791be9a6f2405fcfba8fa6eaa38
Reviewed-on: https://chromium-review.googlesource.com/505199Reviewed-by: Ben Smith <binji@chromium.org>
Commit-Queue: Eric Holk <eholk@chromium.org>
Cr-Commit-Position: refs/heads/master@{#45282}

This lets us avoid allocating the "this" variable for every
generator, since the BytecodeGenerator can directly read
the receiver via BytecodeArrayBuilder::Receive() when passing
it into %_CreateJSGeneratorObject.

Bug: v8:6351
Change-Id: Ib5e1f3303b6b5d5fc051ce76ea62129fd6afac65
Reviewed-on: https://chromium-review.googlesource.com/500507
Commit-Queue: Adam Klein <adamk@chromium.org>
Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Reviewed-by: Georg Neis <neis@chromium.org>
Reviewed-by: Caitlin Potter <caitp@igalia.com>
Cr-Commit-Position: refs/heads/master@{#45281}

Remove FinalizePageSequentially as it had only a single use case that
was tied to the full collector.

Bug: chromium:651354
Change-Id: I03299ddbd439ea273e02dd33f12c005371694130
Reviewed-on: https://chromium-review.googlesource.com/504508Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Commit-Queue: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#45280}

TEST=wasm-spec-tests/tests/set_local,wasm-spec-tests/tests/imports
BUG=

Review-Url: https://codereview.chromium.org/2859223004
Cr-Commit-Position: refs/heads/master@{#45279}

We make assumptions that baseline code exists if we run the optimized code
(e.g., to deopt to the baseline code). If the baseline code has been
cleared by code flushing (only full-codegen) then it might not exist
but there is still optimized code in the map.

BUG=v8:6389

Change-Id: Id4db664afee96c2da3a36a177f425293aae9a0a3
Reviewed-on: https://chromium-review.googlesource.com/503010Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Commit-Queue: Ross McIlroy <rmcilroy@chromium.org>
Cr-Commit-Position: refs/heads/master@{#45278}

This makes sure that the order of exports as they appear in asm.js
modules is maintained globally (not just per function) while being
translated to a WASM module.

R=clemensh@chromium.org
TEST=mjsunit/asm/asm-validation
BUG=chromium:720586

Change-Id: I8b26d717ae2f88467d41670bced901f196c7b3fc
Reviewed-on: https://chromium-review.googlesource.com/503708
Commit-Queue: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#45277}

No need to call through ConstructJS -> ArrayCode -> ArrayConstructorStub
-> AllocateJSArray if we can call AllocateJSArray directly.

This also moves ArraySpeciesCreate to builtins-array-gen to free
up space in the binary.

BUG=v8:6354

Review-Url: https://codereview.chromium.org/2874833004
Cr-Commit-Position: refs/heads/master@{#45276}

BUG=v8:6370

Review-Url: https://codereview.chromium.org/2870013004
Cr-Commit-Position: refs/heads/master@{#45275}

I just tried a local mac build, and the assert seems to be okay.
Let's see what the waterfall thinks.

R=mlippautz@chromium.org
BUG=

Review-Url: https://codereview.chromium.org/2875273002
Cr-Commit-Position: refs/heads/master@{#45274}

Add Miran Karic and Dusan Simicic
Remove Paul Lind, Gergely Kis, Akos Palfi, Balasz Kilvady
and Dusan Milosavljevic

NOTRY=true

Review-Url: https://codereview.chromium.org/2881493003
Cr-Commit-Position: refs/heads/master@{#45273}

Compilers don't flatten os << const char* for you. Save a bit binary size.

Bug:NO

Change-Id: Iabe0de83fdf6394f223d0423e63bd5aadf1453b3
Reviewed-on: https://chromium-review.googlesource.com/503829Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Commit-Queue: Loo Rong Jie <loorongjie@gmail.com>
Cr-Commit-Position: refs/heads/master@{#45272}

The current implementation failed when comparing an integral type to a
reference to an integral type of different signedness (see updated
unittest).
This CL fixes the checks to actually test the std::decay<T>::type,
i.e. with all references, const or volatile modifiers stripped.

R=jochen@chromium.org, ishell@chromium.org
TEST=unittests/LoggingTest.CompareWithReferenceType

Change-Id: Ib0ac077a91e0409ada7a80b68150cb98cbdd32f1
Reviewed-on: https://chromium-review.googlesource.com/502814Reviewed-by: Jochen Eisinger <jochen@chromium.org>
Reviewed-by: Igor Sheludko <ishell@chromium.org>
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#45271}

Bug: 
Change-Id: Ic5b96bfb6b8b468434c06aed5e12b4ddb278dd08
Reviewed-on: https://chromium-review.googlesource.com/503440
Commit-Queue: Mircea Trofin <mtrofin@chromium.org>
Commit-Queue: Brad Nelson <bradnelson@chromium.org>
Reviewed-by: Brad Nelson <bradnelson@chromium.org>
Cr-Commit-Position: refs/heads/master@{#45270}

Rolling v8/build: https://chromium.googlesource.com/chromium/src/build/+log/2e68430..00764a8

Rolling v8/third_party/catapult: https://chromium.googlesource.com/external/github.com/catapult-project/catapult/+log/27f7008..1ff6ffc

Rolling v8/tools/clang: https://chromium.googlesource.com/chromium/src/tools/clang/+log/ae881aa..4dfb853

Rolling v8/tools/swarming_client: https://chromium.googlesource.com/external/swarming.client/+log/e6fc938..a941a08

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

Change-Id: I5a68e9bc325e394b618e0f5605b3c4b13a80f263
Reviewed-on: https://chromium-review.googlesource.com/503869Reviewed-by: v8 autoroll <v8-autoroll@chromium.org>
Commit-Queue: v8 autoroll <v8-autoroll@chromium.org>
Cr-Commit-Position: refs/heads/master@{#45269}

Also add support for host_byteorder logic which is introduced in - https://codereview.chromium.org/2815453004/

Chromium_BUG=706728
R=machenbach@chromium.org, dpranke@chromium.org, adamk@chromium.org

Review-Url: https://codereview.chromium.org/2809963004
Cr-Commit-Position: refs/heads/master@{#45268}

Conf. c++ coding guide (https://chromium.googlesource.com/chromium/src/+/master/styleguide/c++/c++.md#Types),
we may use size_t for vector indices, etc.

Bug: 
Change-Id: I578fb4199c061b006d03e1cc68e745868b40c227
Reviewed-on: https://chromium-review.googlesource.com/503590
Commit-Queue: Mircea Trofin <mtrofin@chromium.org>
Reviewed-by: Brad Nelson <bradnelson@chromium.org>
Cr-Commit-Position: refs/heads/master@{#45267}

Creation stack trace points to the place where callback was actually chained, scheduled points where parent promise was resolved.
For async tasks without creation stack (e.g. setTimeout) we continue to use scheduled as creation since usually they are the same.

BUG=v8:6189
R=dgozman@chromium.org

Review-Url: https://codereview.chromium.org/2868493002
Cr-Original-Commit-Position: refs/heads/master@{#45198}
Committed: https://chromium.googlesource.com/v8/v8/+/e118462f18a862df81a04486e13dd62997cbfc5a
Review-Url: https://codereview.chromium.org/2868493002
Cr-Commit-Position: refs/heads/master@{#45266}

This prepares for:
https://chromium-review.googlesource.com/c/503210

TBR=jkummerow@chromium.org

Bug: 720606
Change-Id: If291077e1647c7116101b9e1ee685ccbc67619a0
Reviewed-on: https://chromium-review.googlesource.com/503368Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#45265}

The error_pc was only used to calculated the relative error offset.
Switching to an error_offset directly will allow us later to give the
decoder a base offset. Thereby we can get correct error
positions even when the decoder is executed on multiple memory chunks,
which will happen with streaming compilation. With this change I also
had to provide "kind of" reasonable error position in the
StreamingDecoder.

R=clemensh@chromium.org

Change-Id: I736fa082c51c64334d23771061acf97e2c47778e
Reviewed-on: https://chromium-review.googlesource.com/502909
Commit-Queue: Andreas Haas <ahaas@chromium.org>
Reviewed-by: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#45264}

Bug: chromium:651354
Change-Id: I356d551f249c9c9c785bb082412ff872639f692f
Reviewed-on: https://chromium-review.googlesource.com/502813Reviewed-by: Hannes Payer <hpayer@chromium.org>
Commit-Queue: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#45263}

This is a part of synchronization protocol with the concurrent marking.

BUG=chromium:694255

Review-Url: https://codereview.chromium.org/2872323002
Cr-Commit-Position: refs/heads/master@{#45262}

This reverts commit 682d5369.

Reason for revert: Didn't see that this was the Reland... now we should be in good state.

Original change's description:
> Revert "Revert "Revert "[global-handles] Remove dead code"""
> 
> This reverts commit c836a95e.
> 
> Reason for revert: I don't think this was related.
> 
> Original change's description:
> > Revert "Revert "[global-handles] Remove dead code""
> > 
> > This reverts commit 58020872.
> > 
> > Reason for revert: Turned out to be a bot issue, reverting the revert. 
> > 
> > Original change's description:
> > > Revert "[global-handles] Remove dead code"
> > > 
> > > This reverts commit e2890c19.
> > > 
> > > Reason for revert: Looks like this CL causes slowdown on multiple builders, Check tests timeout and raise exceptions on the bot. Possible it is a bot issue as well, see tracking bug - https://bugs.chromium.org/p/chromium/issues/detail?id=720606
> > > 
> > > Original change's description:
> > > > [global-handles] Remove dead code
> > > > 
> > > > Bug: chromium:720477
> > > > Change-Id: I090168c575c41b7038af5dfba6cd8973d1154c51
> > > > Reviewed-on: https://chromium-review.googlesource.com/501790
> > > > Reviewed-by: Hannes Payer <hpayer@chromium.org>
> > > > Commit-Queue: Michael Lippautz <mlippautz@chromium.org>
> > > > Cr-Commit-Position: refs/heads/master@{#45241}
> > > 
> > > TBR=hpayer@chromium.org,mlippautz@chromium.org,jochen@chromium.org
> > > NOPRESUBMIT=true
> > > NOTREECHECKS=true
> > > NOTRY=true
> > > Bug: chromium:720477
> > > 
> > > Change-Id: I92f40d8c4dbfdb5208b3068648612e8c5b97fb20
> > > Reviewed-on: https://chromium-review.googlesource.com/502029
> > > Reviewed-by: Deepti Gandluri <gdeepti@chromium.org>
> > > Commit-Queue: Deepti Gandluri <gdeepti@chromium.org>
> > > Cr-Commit-Position: refs/heads/master@{#45243}
> > 
> > TBR=hpayer@chromium.org,gdeepti@chromium.org,mlippautz@chromium.org,jochen@chromium.org,v8-reviews@googlegroups.com
> > NOPRESUBMIT=true
> > NOTREECHECKS=true
> > NOTRY=true
> > Bug: chromium:720477
> > 
> > Change-Id: I70e190e0c27074228a8128aa849e5a419af915e8
> > Reviewed-on: https://chromium-review.googlesource.com/502030
> > Reviewed-by: Deepti Gandluri <gdeepti@chromium.org>
> > Commit-Queue: Deepti Gandluri <gdeepti@chromium.org>
> > Cr-Commit-Position: refs/heads/master@{#45244}
> 
> TBR=hpayer@chromium.org,gdeepti@chromium.org,mlippautz@chromium.org,jochen@chromium.org,v8-reviews@googlegroups.com
> NOPRESUBMIT=true
> NOTREECHECKS=true
> NOTRY=true
> Bug: chromium:720477
> 
> Change-Id: If3e4abea51d87546e25076b906a4c91e5ccf947b
> Reviewed-on: https://chromium-review.googlesource.com/503007
> Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
> Commit-Queue: Michael Lippautz <mlippautz@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#45246}

TBR=hpayer@chromium.org,gdeepti@chromium.org,mlippautz@chromium.org,jochen@chromium.org,v8-reviews@googlegroups.com
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
Bug: chromium:720477

Change-Id: Id7dc886cc20b3b36ca5bb643686fe4fe2e98a3a7
Reviewed-on: https://chromium-review.googlesource.com/503008Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Commit-Queue: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#45261}

std::vector can never store const types, as the stored type has to be
either copy-constructable or move-constructable.
std::vector<const X> does not compile and makes no sense if you think
about it.
Thus remove the TODO to use such a vector.

R=ahaas@chromium.org

Change-Id: Ieb00a31872f04c720d2ef90b70452c18e79f0a5d
Reviewed-on: https://chromium-review.googlesource.com/503148
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Reviewed-by: Andreas Haas <ahaas@chromium.org>
Cr-Commit-Position: refs/heads/master@{#45260}

BUG=v8:6261, v8:6278, v8:6344

Review-Url: https://codereview.chromium.org/2868343002
Cr-Original-Commit-Position: refs/heads/master@{#45236}
Committed: https://chromium.googlesource.com/v8/v8/+/55a610ba24c819ef24d0efbcc4d2e4a4f6a24baa
Review-Url: https://codereview.chromium.org/2868343002
Cr-Commit-Position: refs/heads/master@{#45259}

Bug: chromium:651354
Change-Id: I797a0eee698c9c5a6bf191fb041111c9ff5440cf
Reviewed-on: https://chromium-review.googlesource.com/503227Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Reviewed-by: Hannes Payer <hpayer@chromium.org>
Commit-Queue: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#45258}

This patch fixes regresion introduced in CL:
https://chromium-review.googlesource.com/c/489525/

ldr instruction is unaligned load on MIPS and it is not available in
MIPS64r6 architecture.

BUG=

Review-Url: https://codereview.chromium.org/2873873005
Cr-Commit-Position: refs/heads/master@{#45257}