Handle the case when derived constructor is [[Call]]ed with 0 args.

ArgumentsAdaptorStub for derived constructor (the one that needs
new.target) works in this way:
 - If the constructor is invoked via the Construct stub, we know that
   actual arguments always include new.target. ``arguments`` object
   however should not include a new.target, therefore we remove it.
   We achieve this by decrementing the argument count.
 - If the constructor is invoked as a call, we do not care for a correct
   ``arguments`` array since the constructor will immediately throw on
   entrance.
The bug is that the call could actually pass 0 actual arguments, but I
decrement unconditionally :(. The fix is to detect this case and avoid
decrementing. ``arguments`` is bogus, but it is ok as constructor
throws.

Long-term we should just remove mucking about with arguments for
new.target and just get it from the stack.

R=arv@chromium.org,rossberg@chromium.org
BUG=chromium:474783
LOG=Y

Review URL: https://codereview.chromium.org/1126783003

Cr-Commit-Position: refs/heads/master@{#28242}

MIPS: Fix long branch mode and FPU branches.

- Add long branche mode for FPU branches.
- Fix FPU branches for unordered conditions.
- Provide FPU [un]ordered condition negation schema.

TEST=mjsunit/miror-objects, constant-folding-2, external-array
BUG=

Review URL: https://codereview.chromium.org/1120753010

Cr-Commit-Position: refs/heads/master@{#28241}

MIPS: Improve '[es6] When comparing two symbols we may need to throw a TypeError'.

Improve d26f5d392317dcf1eef3693eadfa1b95a8850df8

Original commit message:
When comparing a symbol to istself using <, <=, > or >= we need to
throw a TypeError. This is correctly handled in the runtime function
so if we are comparing a symbol fall back to use the runtime.

BUG=

Review URL: https://codereview.chromium.org/1124863004

Cr-Commit-Position: refs/heads/master@{#28240}

PPC: [turbofan] Fix tail call optimization.

Port d21de2a48bc63823876d3f9bf52753f9da0aea6b

Original commit message:
Tail calls are matched on the graph, with a dedicated tail call
optimization that is actually testable. The instruction selection can
still fall back to a regular if the platform constraints don't allow to
emit a tail call (i.e. the return locations of caller and callee differ
or the callee takes non-register parameters, which is a restriction that
will be removed in the future).

Also explicitly limit tail call optimization to stubs for now and drop
the global flag.

R=dstence@us.ibm.com, michael_dawson@ca.ibm.com
BUG=

Review URL: https://codereview.chromium.org/1114193003

Cr-Commit-Position: refs/heads/master@{#28239}

Revert of Resolve references to "this" the same way as normal variables (patchset #11 id:240001 of https://codereview.chromium.org/1097283003/)

Reason for revert:
nosnap failures

Original issue's description:
> Resolve references to "this" the same way as normal variables
>
> Make the parser handle references to "this" as unresolved variables, so the
> same logic as for the rest of function parameters is used for the receiver.
> Minor additions to the code generation handle copying the receiver to the
> context, along with the rest of the function parameters.
>
> Based on work by Adrian Perez de Castro <aperez@igalia.com>.
>
> BUG=
> LOG=N
>
> Committed: https://crrev.com/18619d355192e2699203d12d9ebb9caea107b693
> Cr-Commit-Position: refs/heads/master@{#28236}

TBR=rossberg@chromium.org,mstarzinger@chromium.org,dslomov@chromium.org,adamk@chromium.org,arv@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=

Review URL: https://codereview.chromium.org/1113133006

Cr-Commit-Position: refs/heads/master@{#28238}

Revert of Collect type feedback on result of Math.[round|ceil|floor] (patchset #13 id:230001 of https://codereview.chromium.org/1053143005/)

Reason for revert:
All sorts of performance regressions

Original issue's description:
> Collect type feedback on result of Math.[round|ceil|floor]
>
> By recording invocations of these builtins that can return -0, we now learn to not emit Crankshaft code that only handles integer results, avoiding deopt loops.
>
> Committed: https://crrev.com/f36ecaf3a4d61568ca50a20718acce7dd5da9a5f
> Cr-Commit-Position: refs/heads/master@{#28215}

TBR=mvstanton@chromium.org,bmeurer@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true

Review URL: https://codereview.chromium.org/1115973005

Cr-Commit-Position: refs/heads/master@{#28237}

Resolve references to "this" the same way as normal variables

Make the parser handle references to "this" as unresolved variables, so the
same logic as for the rest of function parameters is used for the receiver.
Minor additions to the code generation handle copying the receiver to the
context, along with the rest of the function parameters.

Based on work by Adrian Perez de Castro <aperez@igalia.com>.

BUG=
LOG=N

Review URL: https://codereview.chromium.org/1097283003

Cr-Commit-Position: refs/heads/master@{#28236}

Revert of [handles] Sanitize Handle and friends. (patchset #4 id:50001 of https://codereview.chromium.org/1128533002/)

Reason for revert:
[Sheriff] Breaks mac asan:
http://build.chromium.org/p/client.v8/builders/V8%20Mac64%20ASAN/builds/1198

Original issue's description:
> [handles] Sanitize Handle and friends.
>
> This almost allows us to get rid of handles-inl.h, once we fix the
> cyclic dependencies (follow up CL).
>
> R=yangguo@chromium.org
>
> Committed: https://crrev.com/3283195d0408333cce552cf4087577e6f41054e5
> Cr-Commit-Position: refs/heads/master@{#28222}

TBR=yangguo@chromium.org,bmeurer@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true

Review URL: https://codereview.chromium.org/1128543004

Cr-Commit-Position: refs/heads/master@{#28235}

freed_nodes in global-handles should be addititive

otherwise phantom nodes won't ever be taken into account

BUG=chromium:484671,chromium:479796
R=hpayer@chromium.org
LOG=y

Review URL: https://codereview.chromium.org/1125673010

Cr-Commit-Position: refs/heads/master@{#28234}

Be sure to abort incremental GC when trying to reserve space

R=hpayer@chromium.org
BUG=

Review URL: https://codereview.chromium.org/1124553007

Cr-Commit-Position: refs/heads/master@{#28233}

GrowArrayElementsStub must save caller doubles for double ElementsKind.

BUG=
R=danno@chromium.org

Review URL: https://codereview.chromium.org/1124653004

Cr-Commit-Position: refs/heads/master@{#28232}

[grokdump] Update v8heapconst.py

Review URL: https://codereview.chromium.org/1125543004

Cr-Commit-Position: refs/heads/master@{#28231}

[d8] Make Realm.dispose() trigger a ContextDisposedNotification

Review URL: https://codereview.chromium.org/1129543002

Cr-Commit-Position: refs/heads/master@{#28230}

[V8] Reland https://codereview.chromium.org/1100993003/

Chromium tests were prepared in https://codereview.chromium.org/1118743003/
Blink tests in https://codereview.chromium.org/1115193002/

LOG=Y
BUG=chromium:480652
R=yangguo@chromium.org

Review URL: https://codereview.chromium.org/1121833003

Cr-Commit-Position: refs/heads/master@{#28229}

[tick processor] Introduce --pairwise-timed-range processing mode

Review URL: https://codereview.chromium.org/1123883002

Cr-Commit-Position: refs/heads/master@{#28228}

[test] Add arm perf trybot to runner script.

BUG=chromium:484589
LOG=n
NOTRY=true
TBR=hpayer@chromium.org

Review URL: https://codereview.chromium.org/1123473007

Cr-Commit-Position: refs/heads/master@{#28227}

[es6] When comparing two symbols we may need to throw a TypeError

When comparing a symbol to istself using <, <=, > or >= we need to
throw a TypeError. This is correctly handled in the runtime function
so if we are comparing a symbol fall back to use the runtime.

BUG=v8:4073
LOG=Y
R=rossberg@chromium.org

Review URL: https://codereview.chromium.org/1125783002

Cr-Commit-Position: refs/heads/master@{#28226}

Reduce the size of initial JSON string buffer.

BUG=v8:3925
LOG=NO

Review URL: https://codereview.chromium.org/1123013002

Cr-Commit-Position: refs/heads/master@{#28225}

Do not cache object literal maps during bootstrapping.

We do not expect to share maps for object literals created by builtin
Javascript code.

R=ishell@chromium.org

Review URL: https://codereview.chromium.org/1127693009

Cr-Commit-Position: refs/heads/master@{#28224}

Move more parts of stack trace formatting to runtime.

R=ishell@chromium.org

Review URL: https://codereview.chromium.org/1122973002

Cr-Commit-Position: refs/heads/master@{#28223}

[handles] Sanitize Handle and friends.

This almost allows us to get rid of handles-inl.h, once we fix the
cyclic dependencies (follow up CL).

R=yangguo@chromium.org

Review URL: https://codereview.chromium.org/1128533002

Cr-Commit-Position: refs/heads/master@{#28222}

When adding constant string with something unknown, assume it's a string.

Review URL: https://codereview.chromium.org/1122823002

Cr-Commit-Position: refs/heads/master@{#28221}

Fix bug in "Migrate error messages, part 7".

TBR=mvstanton@chromium.org
NOTRY=true

Review URL: https://codereview.chromium.org/1124583006

Cr-Commit-Position: refs/heads/master@{#28220}

[turbofan] Fix tail call optimization.

Tail calls are matched on the graph, with a dedicated tail call
optimization that is actually testable. The instruction selection can
still fall back to a regular if the platform constraints don't allow to
emit a tail call (i.e. the return locations of caller and callee differ
or the callee takes non-register parameters, which is a restriction that
will be removed in the future).

Also explicitly limit tail call optimization to stubs for now and drop
the global flag.

BUG=v8:4076
LOG=n

Review URL: https://codereview.chromium.org/1114163005

Cr-Commit-Position: refs/heads/master@{#28219}

Add heap growing strategy details to --trace-gc-verbose.

BUG=

Review URL: https://codereview.chromium.org/1128483003

Cr-Commit-Position: refs/heads/master@{#28218}

Reland #2 "Wrap v8natives.js into a function."

TBR=machenbach@chromium.org

Review URL: https://codereview.chromium.org/1127693006

Cr-Commit-Position: refs/heads/master@{#28217}

Migrate error messages, part 7.

R=mvstanton@chromium.org

Review URL: https://codereview.chromium.org/1122033002

Cr-Commit-Position: refs/heads/master@{#28216}

Collect type feedback on result of Math.[round|ceil|floor]

By recording invocations of these builtins that can return -0, we now learn to not emit Crankshaft code that only handles integer results, avoiding deopt loops.

Review URL: https://codereview.chromium.org/1053143005

Cr-Commit-Position: refs/heads/master@{#28215}

[c++11] Remove remnants of pre-C++11 delete, final and override.

These macros are not needed anymore, so there's no point in supporting
them.

Review URL: https://codereview.chromium.org/1123723003

Cr-Commit-Position: refs/heads/master@{#28214}

Correctly accept already preprocessed stack traces.

When we preprocess stack traces, we turn code pointer and offset to
source position, and store it in place of code pointer as smi.

Preprocessing stack traces is currently disabled due to issue 4065.

R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/1125723002

Cr-Commit-Position: refs/heads/master@{#28213}

Fix another may not be init compile error on AIX

AIX compiler is complaining that variable may not be initialized

modified:   src/heap/heap.cc

R=danno@chromium.org, svenpanne@chromium.org, mbrandy@us.ibm.com

BUG=

Review URL: https://codereview.chromium.org/1123743002

Cr-Commit-Position: refs/heads/master@{#28212}

Make CPU profiler do not hog 100% of CPU.

Tick event processor should not stay in a tight loop
when there's nothing to do. It can go sleep until next sample event.

LOG=N
BUG=v8:3967

Review URL: https://codereview.chromium.org/1118533003

Cr-Commit-Position: refs/heads/master@{#28211}

comment typo fix

Review URL: https://codereview.chromium.org/1120373003

Cr-Commit-Position: refs/heads/master@{#28210}

PPC: Fix 'Remove materialized objects on stack unwind.'

R=mstarzinger@chromium.org, jarin@chromium.org, dstence@us.ibm.com, michael_dawson@ca.ibm.com
BUG=

Review URL: https://codereview.chromium.org/1123793002

Cr-Commit-Position: refs/heads/master@{#28209}

Revert of Reland "Wrap v8natives.js into a function." (patchset #2 id:20001 of https://codereview.chromium.org/1123703002/)

Reason for revert:
[Sheriff] Speculative revert for braking arm64 nosnap:
http://build.chromium.org/p/client.v8/builders/V8%20Linux%20-%20arm64%20-%20sim%20-%20nosnap%20-%20debug%20-%202/builds/2314

(reverted already titzer's CL which didn't help)

Original issue's description:
> Reland "Wrap v8natives.js into a function."
>
> Committed: https://crrev.com/72ab42172979b60a1b784ea0c6a495d7ee2bba67
> Cr-Commit-Position: refs/heads/master@{#28193}

TBR=jkummerow@chromium.org,yangguo@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true

Review URL: https://codereview.chromium.org/1127543003

Cr-Commit-Position: refs/heads/master@{#28208}

Revert of Revert of [turbofan] Small fixes to PipelineStatistics. Collect statistics in tests. (patchset #1 id:1 of https://codereview.chromium.org/1119963003/)

Reason for revert:
Revert didn't fix the problem. Maybe it was another CL.

Original issue's description:
> Revert of [turbofan] Small fixes to PipelineStatistics. Collect statistics in tests. (patchset #1 id:1 of https://codereview.chromium.org/1122753002/)
>
> Reason for revert:
> [Sheriff] Speculative revert for breaking arm64 nosnap:
> http://build.chromium.org/p/client.v8/builders/V8%20Linux%20-%20arm64%20-%20sim%20-%20nosnap%20-%20debug%20-%202/builds/2314
>
> Original issue's description:
> > [turbofan] Small fixes to PipelineStatistics. Collect statistics in tests.
> >
> > R=bmeurer@chromium.org
> > BUG=
> >
> > Committed: https://crrev.com/9833844268357590243732a53e2a7fc0dc5fcc9e
> > Cr-Commit-Position: refs/heads/master@{#28192}
>
> TBR=bmeurer@chromium.org,titzer@chromium.org
> NOPRESUBMIT=true
> NOTREECHECKS=true
> NOTRY=true
> BUG=
>
> Committed: https://crrev.com/d0ed8940fc6c995eba57149b8e8cb214001e8381
> Cr-Commit-Position: refs/heads/master@{#28205}

TBR=bmeurer@chromium.org,titzer@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=

Review URL: https://codereview.chromium.org/1126603002

Cr-Commit-Position: refs/heads/master@{#28207}

Remove materialized objects on stack unwind.

BUG=v8:3985
LOG=n
R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/1122083002

Cr-Commit-Position: refs/heads/master@{#28206}

Revert of [turbofan] Small fixes to PipelineStatistics. Collect statistics in tests. (patchset #1 id:1 of https://codereview.chromium.org/1122753002/)

Reason for revert:
[Sheriff] Speculative revert for breaking arm64 nosnap:
http://build.chromium.org/p/client.v8/builders/V8%20Linux%20-%20arm64%20-%20sim%20-%20nosnap%20-%20debug%20-%202/builds/2314

Original issue's description:
> [turbofan] Small fixes to PipelineStatistics. Collect statistics in tests.
>
> R=bmeurer@chromium.org
> BUG=
>
> Committed: https://crrev.com/9833844268357590243732a53e2a7fc0dc5fcc9e
> Cr-Commit-Position: refs/heads/master@{#28192}

TBR=bmeurer@chromium.org,titzer@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=

Review URL: https://codereview.chromium.org/1119963003

Cr-Commit-Position: refs/heads/master@{#28205}

[test] Skip some flaky layout tests.

NOTRY=true
TBR=jochen@chromium.org

Review URL: https://codereview.chromium.org/1126433004

Cr-Commit-Position: refs/heads/master@{#28204}

PPC: Only swap undefined for the global object if necessary in the prologue

Port fab3508062396c2768b5dcfa0fd7d40eba527d62

R=verwaest@chromium.org, dstence@us.ibm.com, michael_dawson@ca.ibm.com
BUG=

Review URL: https://codereview.chromium.org/1122773002

Cr-Commit-Position: refs/heads/master@{#28203}

Fix smi scanning

BUG=chromium:483176
LOG=n

Review URL: https://codereview.chromium.org/1114073003

Cr-Commit-Position: refs/heads/master@{#28202}

MIPS: Skip test-simplified-lowering/RunNumberDivide_2_TruncatingToUint32.

This test fails on board, temporarily skip failing test until we resolve this issue.

NOTRY=true

Review URL: https://codereview.chromium.org/1127573002

Cr-Commit-Position: refs/heads/master@{#28201}

Only swap undefined for the global object if necessary in the prologue

BUG=

Review URL: https://codereview.chromium.org/1120093002

Cr-Commit-Position: refs/heads/master@{#28200}

New insertion write barrier.

BUG=

Review URL: https://codereview.chromium.org/1073953006

Cr-Commit-Position: refs/heads/master@{#28199}

[turbofan] Free TurboFan from the claws of ZoneList.

This removes the last occurence of the hand-written ZoneList from the
compiler directory and uses ZoneVector everywhere instead.

R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/1120083004

Cr-Commit-Position: refs/heads/master@{#28198}

[release-tools] Tool to find related commits

usage: This tool analyzes the commit range between <of> and <until>. It finds commits which belong together e.g. Implement/Revert pairs and Implement/Port/Revert triples. All supplied hashes need to be from the same branch e.g. master.

Example for M42: ./search_related_commits.py --prettyprint --separator e0110920d6f98f0ba2ac0d680f635ae3f094a04e b856e8785933a2a9cd884ab8966fee0e7098927e b1c2a3495624a9776c7df865d972886f2d078c10

BUG=
NOTRY=true

Review URL: https://codereview.chromium.org/1098123002

Cr-Commit-Position: refs/heads/master@{#28197}

Don't perform marking barrier for weak cell values.

BUG=

Review URL: https://codereview.chromium.org/1124583003

Cr-Commit-Position: refs/heads/master@{#28196}

[turbofan] Add SimplifiedOperator::Allocate operator.

This introduces a simplified allocation operator which can be used to
model inline allocations in TurboFan. It is currently used for context
allocations, but still disabled because change lowering introduces
floating allocations outside the effect chain that interfere.

R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/1109773002

Cr-Commit-Position: refs/heads/master@{#28195}

MIPS: Do not use the 64-bit floor and truncate instructions in fp32 mode.

These instructions have unpredictable result when the processor is in fp32 mode.

BUG=

TEST=mjsunit/math-floor-global,math-floor-local,math-floor-part1

Review URL: https://codereview.chromium.org/1116073002

Cr-Commit-Position: refs/heads/master@{#28194}

Reland "Wrap v8natives.js into a function."

Review URL: https://codereview.chromium.org/1123703002

Cr-Commit-Position: refs/heads/master@{#28193}

[turbofan] Small fixes to PipelineStatistics. Collect statistics in tests.

R=bmeurer@chromium.org
BUG=

Review URL: https://codereview.chromium.org/1122753002

Cr-Commit-Position: refs/heads/master@{#28192}

Extract Signature from src/compiler/machine-type.h to src/signature.h

R=bmeurer@chromium.org
BUG=

Review URL: https://codereview.chromium.org/1118823003

Cr-Commit-Position: refs/heads/master@{#28191}

Set inferred name of bound function to empty string.

Otherwise it's whatever the js minifier assigns it to.

R=jkummerow@chromium.org
BUG=chromium:484077
LOG=N

Review URL: https://codereview.chromium.org/1122733002

Cr-Commit-Position: refs/heads/master@{#28190}

X87: VectorICs: built-in function apply should use an IC.

port 83a0af55009548238a2ff6ef71c3387a49da0a88 (r28165).

original commit message:

   VectorICs: built-in function apply should use an IC.

   Handled a TODO that sent builtin function apply to the runtime on property get.

BUG=

Review URL: https://codereview.chromium.org/1119263002

Cr-Commit-Position: refs/heads/master@{#28189}

X87: Use a stub in crankshaft for grow store arrays.

port fb8e6136387339e8089bbf61d4ffee50e4cd957e (r28163).

original commit message:

 We were deopting without learning anything.

 This is a rebase/reland of https://codereview.chromium.org/368263003

BUG=

Review URL: https://codereview.chromium.org/1125623002

Cr-Commit-Position: refs/heads/master@{#28188}

Revert of [V8] Use previous token location as EOS token location (patchset #2 id:20001 of https://codereview.chromium.org/1100993003/)

Reason for revert:
[Sheriff] Speculative revert. This seems to block the current roll:
https://codereview.chromium.org/1124463003/

This bisect also points at this CL:
https://codereview.chromium.org/1124523002/

Please prepare the chromium side tests before a reland.

Original issue's description:
> [V8] Use previous token location as EOS token location
>
> EOS token location is useless for users and messages.js are not ready for its location.
> With this CL we use location of token before EOS for it.
>
> LOG=Y
> BUG=chromium:480652
> R=yurys@chromium.org,yangguo@chromium.org
>
> Committed: https://crrev.com/81afc9313ce84350bcba9f84b255a77e97cd3726
> Cr-Commit-Position: refs/heads/master@{#28164}

TBR=yangguo@chromium.org,yurys@chromium.org,kozyatinskiy@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=chromium:480652

Review URL: https://codereview.chromium.org/1116233004

Cr-Commit-Position: refs/heads/master@{#28187}

Update V8 DEPS.

Rolling v8/tools/clang to a8549b6dd82c3b35a06f9894fa7abdcbbf0bd6f5

TBR=machenbach@chromium.org

Review URL: https://codereview.chromium.org/1120243002

Cr-Commit-Position: refs/heads/master@{#28186}

Most of the issues so far encountered with the greedy allocator rest with the splitting mechanism. This change has:

- all RegisterAllocatorTest unit tests passing, when unittest has the flags: --turbo-filter=* --always-opt --turbo-deoptimization --turbo-verify-allocation --turbo_greedy_regalloc

./tools/run-tests.py passing when providing --turbo_greedy_regalloc, but still having some failing (more than the "normal" 43) when passing all the flags. I realize just passing --turbo_greedy_regalloc does not provide full coverage, but it did uncover some bugs, still

The CL centralizes the computing of split points (for "losing" intervals) with the determination of whether an interval is irreducible, and, therefore, of infinite spill weight (if an interval can't be split or spilled, it can't lose in weight comparison because there's nothing we can do to it and make progress).

There are allocator efficiency opportunities I haven't yet taken (this refers to the code itself, not the generated code). For example, the above split/spill computation can be cached. My plan is to defer this to at least after we see numbers showing the value of the algorithm, and potentially do at the same time we remove the linear algorithm, if that is still the plan. At that time, we can look where some APIs best belong (e.g. weight computation may fully live and cache itself on LiveRange)

In addition, the CL adds a few debug-time-only Print APIs I found very useful:  on demand (while in GDB) dump of the code, live range info (use positions & operand description, and intervals), etc.

BUG=

Review URL: https://codereview.chromium.org/1105793002

Cr-Commit-Position: refs/heads/master@{#28185}

Update V8 DEPS.

Rolling v8/third_party/icu to f8c0e585b0a046d83d72b5d37356cb50d5b2031a

Rolling v8/tools/clang to 15ea3e6cc23fd6ff5545bd939ee153b97807668d

TBR=machenbach@chromium.org

Review URL: https://codereview.chromium.org/1117163003

Cr-Commit-Position: refs/heads/master@{#28184}

MIPS: Fix 'Detect simple tail calls'.

4b122b7504ab458faa4132c338809b40147751bf

BUG=

Review URL: https://codereview.chromium.org/1116913002

Cr-Commit-Position: refs/heads/master@{#28183}

Revert of Wrap v8natives.js into a function. (patchset #2 id:20001 of https://codereview.chromium.org/1109343004/)

Reason for revert:
[Sheriff] Speculative revert for breaking layout tests, e.g.:
http://build.chromium.org/p/client.v8/builders/V8-Blink%20Linux%2064%20%28dbg%29/builds/2682

See. e.g.:
https://storage.googleapis.com/chromium-layout-test-archives/V8-Blink_Win/3130/layout-test-results/http/tests/websocket/workers/worker-reload-diff.txt

Original issue's description:
> Wrap v8natives.js into a function.
>
> R=jkummerow@chromium.org
>
> Committed: https://crrev.com/ee1b39b4303829e6c6805fe8b2f2602b13f6463a
> Cr-Commit-Position: refs/heads/master@{#28174}

TBR=jkummerow@chromium.org,yangguo@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true

Review URL: https://codereview.chromium.org/1121453003

Cr-Commit-Position: refs/heads/master@{#28182}

MIPS: Add min/max suffixed variants.

TEST=
BUG=

Review URL: https://codereview.chromium.org/1118693002

Cr-Commit-Position: refs/heads/master@{#28181}

Migrate error messages, part 6. (string.js and date.js)

R=mvstanton@chromium.org

Review URL: https://codereview.chromium.org/1116953002

Cr-Commit-Position: refs/heads/master@{#28180}

Remove unused Module-related AST nodes and associated codegen

BUG=v8:1569
LOG=n

Review URL: https://codereview.chromium.org/1106383008

Cr-Commit-Position: refs/heads/master@{#28179}

PPC: VectorICs: built-in function apply should use an IC.

Port 83a0af55009548238a2ff6ef71c3387a49da0a88

Original commit message:
Handled a TODO that sent builtin function apply to the runtime on property get.

R=mvstanton@chromium.org, dstence@us.ibm.com, michael_dawson@ca.ibm.com
BUG=

Review URL: https://codereview.chromium.org/1118713002

Cr-Commit-Position: refs/heads/master@{#28178}

PPC: Use a stub in crankshaft for grow store arrays.

Port fb8e6136387339e8089bbf61d4ffee50e4cd957e

Original commit message:
We were deopting without learning anything.

This is a rebase/reland of https://codereview.chromium.org/368263003

BUG=
R=mvstanton@chromium.org, dstence@us.ibm.com, michael_dawson@ca.ibm.com

Review URL: https://codereview.chromium.org/1113063002

Cr-Commit-Position: refs/heads/master@{#28177}

Cache experimental natives sources as external strings.

R=ulan@chromium.org
BUG=v8:4054
LOG=N

Review URL: https://codereview.chromium.org/1114043002

Cr-Commit-Position: refs/heads/master@{#28176}

Disable stack trace preprocessing.

This has to wait until issue 4065 has been fixed.

R=ulan@chromium.org
BUG=v8:2340, v8:4065, chromium:482312
LOG=N

Review URL: https://codereview.chromium.org/1110393002

Cr-Commit-Position: refs/heads/master@{#28175}

Wrap v8natives.js into a function.

R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/1109343004

Cr-Commit-Position: refs/heads/master@{#28174}

[test] Remove pesky MachineCallHelper from inheritance chain.

R=titzer@chromium.org

Review URL: https://codereview.chromium.org/1109853003

Cr-Commit-Position: refs/heads/master@{#28173}

Allow TurboFan to compile more methods.

Reorganize some bailout conditions to be after the decision to use TurboFan.

R=mstarzinger@chromium.org
BUG=

Review URL: https://codereview.chromium.org/1110573002

Cr-Commit-Position: refs/heads/master@{#28172}

Mark instruction blocks with spills (for frame elision).

Review URL: https://codereview.chromium.org/1119683002

Cr-Commit-Position: refs/heads/master@{#28171}

Initialize typed array content for rempio2result during bootstrapping.

This is to pacify MSAN.

R=mvstanton@chromium.org
BUG=465759
LOG=N

Review URL: https://codereview.chromium.org/1119693004

Cr-Commit-Position: refs/heads/master@{#28170}

Fix typo in builtins-x87, introduced in crrev.com/1107233004.

BUG=470930
LOG=N
R=jochen@chromium.org

Review URL: https://codereview.chromium.org/1116933002

Cr-Commit-Position: refs/heads/master@{#28169}

Unify internal and external typed arrays a bit

Just give internal ones an ArrayBuffer with a NULL backing store. This
simplifies the access checks a lot.

BUG=v8:3996
R=hpayer@chromium.org,verwaest@chromium.org
LOG=n

Review URL: https://codereview.chromium.org/1109353003

Cr-Commit-Position: refs/heads/master@{#28168}

[test] make instruction sequence test emit cfgs more like the scheduler

BUG=

Review URL: https://codereview.chromium.org/1116923002

Cr-Commit-Position: refs/heads/master@{#28167}

[test] Mark test as flaky.

BUG=v8:3803
LOG=n
TBR=mstarzinger@chromium.org
NOTRY=true

Review URL: https://codereview.chromium.org/1112373002

Cr-Commit-Position: refs/heads/master@{#28166}

VectorICs: built-in function apply should use an IC.

Handled a TODO that sent builtin function apply to the runtime on property get.

R=yangguo@chromium.org
BUG=

Review URL: https://codereview.chromium.org/1120613002

Cr-Commit-Position: refs/heads/master@{#28165}

[V8] Use previous token location as EOS token location

EOS token location is useless for users and messages.js are not ready for its location.
With this CL we use location of token before EOS for it.

LOG=Y
BUG=chromium:480652
R=yurys@chromium.org,yangguo@chromium.org

Review URL: https://codereview.chromium.org/1100993003

Cr-Commit-Position: refs/heads/master@{#28164}

Use a stub in crankshaft for grow store arrays.

We were deopting without learning anything.

This is a rebase/reland of https://codereview.chromium.org/368263003

BUG=v8:3417
LOG=N

Review URL: https://codereview.chromium.org/1109333003

Cr-Commit-Position: refs/heads/master@{#28163}

Implement kToBeExecutedOnceCodeAge.

An initial 'code age' state that will turn into a 'pre-aging' code age only after it was executed the first time.

BUG=470930
LOG=Y

Review URL: https://codereview.chromium.org/1107233004

Cr-Commit-Position: refs/heads/master@{#28162}

Add flag to print stack-trace after n allocations.

BUG=

Review URL: https://codereview.chromium.org/1104353003

Cr-Commit-Position: refs/heads/master@{#28161}

[test] Remove DirectGraphBuilder helper.

R=bmeurer@chromium.org
TEST=cctest/test-js-context-specialization

Review URL: https://codereview.chromium.org/1112343002

Cr-Commit-Position: refs/heads/master@{#28160}

[strong] Disallow implicit conversions for add

Implements the strong mode proposal's restrictions on implicit conversions
for the binary + operator. Test suite is also cleaned up/refactored to allow
easier testing of the comparison operators in the future.

BUG=v8:3956
LOG=N

Review URL: https://codereview.chromium.org/1109223004

Cr-Commit-Position: refs/heads/master@{#28159}

Fix error messages for extra files in js2c.py

https://codereview.chromium.org/1117663002 contained a copy-paste
error; this is a follow-up fixing that so that error messages now
contain the correct filename when using the --extra option to js2c.py.

R=yangguo@chromium.org, jochen@chromium.org

Review URL: https://codereview.chromium.org/1120593002

Cr-Commit-Position: refs/heads/master@{#28158}

[turbofan] resolve all references before populating reference maps

BUG=

Review URL: https://codereview.chromium.org/1112213005

Cr-Commit-Position: refs/heads/master@{#28157}

Reland "Remove the weak list of array buffers"

Original issue's description:
> Remove the weak list of array buffers
>
> Instead, collect live array buffers during marking and free pointers we
> no longer found.
>
> BUG=v8:3996
> R=hpayer@chromium.org
> LOG=n

BUG=v8:3996
TBR=hpayer@chromium.org
LOG=n

Review URL: https://codereview.chromium.org/1115853004

Cr-Commit-Position: refs/heads/master@{#28156}

drop interalization of strings entering global constant slots

BUG=

Review URL: https://codereview.chromium.org/1110393003

Cr-Commit-Position: refs/heads/master@{#28155}

JSON serializer should fail gracefully for special value wrappers.

R=mstarzinger@chromium.org
BUG=chromium:471702
LOG=N

Review URL: https://codereview.chromium.org/1120573002

Cr-Commit-Position: refs/heads/master@{#28154}

[turbofan] Don't spread global flag checks all over the compiler code.

Better encapsulate the source position handling in TurboFan.

R=svenpanne@chromium.org

Review URL: https://codereview.chromium.org/1105363003

Cr-Commit-Position: refs/heads/master@{#28153}

Bump Isolate::New back to deprecate soon

R=machenbach@chromium.org
TBR=machenbach@chromium.org

Review URL: https://codereview.chromium.org/1115133002

Cr-Commit-Position: refs/heads/master@{#28152}

Show function <name>() { [native code] } for built-in classes

The existing logic would show the full source for all classes, even
built-in ones.

R=arv@chromium.org,dslomov@chromium.org
BUG=

Review URL: https://codereview.chromium.org/1112113002

Cr-Commit-Position: refs/heads/master@{#28151}

Detect simple tail calls

This CL contains the first steps towards tail call optimization:

  * Structurally detect tail calls during instruction selection,
    looking for special return/call combinations.

  * Added new architecture-specific instructions for tail calls which
    jump instead of call and take care of frame adjustment.

  * Moved some code around.

Currently we restrict tail calls to callees which only use registers
for arguments/return value and to call sites which are explicitly
marked as being OK for tail calls. This excludes, among other things,
call sites in sloppy JS functions and our IC machinery (both need in
general to be able to access the caller's frame).

All this is behind a flag --turbo-tail-calls, which is currently off
by default, so it can easily be toggled.

Review URL: https://codereview.chromium.org/1108563002

Cr-Commit-Position: refs/heads/master@{#28150}

[test] Add avx2 bot to CQ.

BUG=chromium:478460
LOG=n
NOTRY=true
TBR=bmeurer@chromium.org, mvstanton@chromium.org

Review URL: https://codereview.chromium.org/1107973007

Cr-Commit-Position: refs/heads/master@{#28149}

Revert of Remove the weak list of array buffers (patchset #8 id:140001 of https://codereview.chromium.org/1114563002/)

Reason for revert:
[Sheriff] Crashes in layout tests:
https://chromegw.corp.google.com/i/client.v8/builders/V8-Blink%20Linux%2064%20%28dbg%29/builds/2668

Original issue's description:
> Remove the weak list of array buffers
>
> Instead, collect live array buffers during marking and free pointers we
> no longer found.
>
> BUG=v8:3996
> R=hpayer@chromium.org
> LOG=n
>
> Committed: https://crrev.com/2d39709cf5ee17637f6f2d75380a9e61ae0b342b
> Cr-Commit-Position: refs/heads/master@{#28132}

TBR=dslomov@chromium.org,hpayer@chromium.org,jochen@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:3996

Review URL: https://codereview.chromium.org/1115043005

Cr-Commit-Position: refs/heads/master@{#28148}

[base] Drop obsolete Thread::YieldCPU.

The method is not used anywhere, and it is a bad idea in general anyway.
If you see a need to call YieldCPU, then you're code is probably in need
of a redesign!

R=svenpanne@chromium.org

Review URL: https://codereview.chromium.org/1116853002

Cr-Commit-Position: refs/heads/master@{#28147}

Add shift to InternalArray and InternalPackedArray

It's useful for queue-like data structures.

R=yangguo@chromium.org
BUG=

Review URL: https://codereview.chromium.org/1117713002

Cr-Commit-Position: refs/heads/master@{#28146}

Fix AIX compiler warning

Fix AIX compiler warning indicating that variable may not be
initialized

modified:   src/heap/heap.cc

R=danno@chromium.org, svenpanne@chromium.org, mbrandy@us.ibm.com

BUG=

Review URL: https://codereview.chromium.org/1112883002

Cr-Commit-Position: refs/heads/master@{#28145}

Switch to larger TOC on AIX for unitttests

Switch to larger TOC on AIX for unitttests as the size has grown
such that it no longer compiles with the default TOC size

modified:   unittests.gyp

R=danno@chromium.org, svenpanne@chromium.org, mbrandy@us.ibm.com

BUG=

Review URL: https://codereview.chromium.org/1115763003

Cr-Commit-Position: refs/heads/master@{#28144}

MIPS: Add rounding support in simulator and RINT instruction.

Added rounding according to fcsr, CVT_W_D and RINT.D instruction in assembler, dissasembler and simulator and wrote appropiate tests.

BUG=

Review URL: https://codereview.chromium.org/1108583003

Cr-Commit-Position: refs/heads/master@{#28143}