BUG=
R=titzer@chromium.org

Review URL: https://codereview.chromium.org/1055453006

Cr-Commit-Position: refs/heads/master@{#28022}

ES6 specifies the function name property (it was not part of ES5) and
it specifies the name of Function.prototype to the empty string ("" and
not "Empty"). This makes us match Firefox, Safari and IE developer
preview.

BUG=v8:4033
LOG=N
R=adamk@chromium.org
CQ_INCLUDE_TRYBOTS=tryserver.chromium.linux:linux_chromium_rel_ng;tryserver.blink:linux_blink_rel

Review URL: https://codereview.chromium.org/1080393004

Cr-Commit-Position: refs/heads/master@{#28021}

Emscripten use of typed-arrays is little-endian only.

BUG=

Review URL: https://codereview.chromium.org/1082723007

Cr-Commit-Position: refs/heads/master@{#28020}

BUG=v8:3924,v8:3969,chromium:478788
NOTRY=true
LOG=n

Review URL: https://codereview.chromium.org/1095893004

Cr-Commit-Position: refs/heads/master@{#28019}

This change aims to introduce the separation of the RegisterAllocator model, using the initial prototype for GreedyAllocator as proof of concept.

Summary:
- new flag, turbo-greedy-regalloc, enabling the new allocator. Default
  false.
- initial, untested implementation for the GreedyAllocator.

BUG=

Review URL: https://codereview.chromium.org/1061923005

Cr-Commit-Position: refs/heads/master@{#28018}

Revert of Introducing the LLVM greedy register allocator. (patchset #10 id:410001 of https://codereview.chromium.org/1061923005/)

Reason for revert:
Breaks Static Initializers test.

http://build.chromium.org/p/client.v8/builders/V8%20Linux64/builds/3210/steps/Static-Initializers/logs/stdio

Original issue's description:
> Introducing the LLVM greedy register allocator.
>
> This change aims to introduce the separation of the RegisterAllocator model,
> using the initial prototype for RegisterAllocatorGreedy as proof of concept.
>
> Summary:
> - new flag, turbo-greedy-regalloc, enabling the new allocator. Default
>   false.
> - separated RegisterAllocator into a base type and two derived,
>   RegisterAllocatorLinear (the one currently used in TurboFan) and
>   RegisterAllocatorGreedy (the new one).
> - initial, untested impementation for the greedy allocator.
>
> BUG=
>
> Committed: https://crrev.com/ec542dea6b6a0cb82d1578a389569d019a59121d
> Cr-Commit-Position: refs/heads/master@{#28015}

TBR=dcarney@chromium.org,titzer@chromium.org,jarin@chromium.org,jvoung@chromium.org,mtrofin@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=

Review URL: https://codereview.chromium.org/1080953006

Cr-Commit-Position: refs/heads/master@{#28017}

BUG=v8:4009
LOG=N
R=dslomov@chromium.org

Review URL: https://codereview.chromium.org/1101543002

Cr-Commit-Position: refs/heads/master@{#28016}

This change aims to introduce the separation of the RegisterAllocator model,
using the initial prototype for RegisterAllocatorGreedy as proof of concept.

Summary:
- new flag, turbo-greedy-regalloc, enabling the new allocator. Default
  false.
- separated RegisterAllocator into a base type and two derived,
  RegisterAllocatorLinear (the one currently used in TurboFan) and
  RegisterAllocatorGreedy (the new one).
- initial, untested impementation for the greedy allocator.

BUG=

Review URL: https://codereview.chromium.org/1061923005

Cr-Commit-Position: refs/heads/master@{#28015}

Revert of Remove the weak list of views from array buffers (patchset #6 id:100001 of https://codereview.chromium.org/1094863002/)

Reason for revert:
I'm reverting this while working on the regression fix

Original issue's description:
> Remove the weak list of views from array buffers
>
> Instead, views have to check their array buffer for whether
> it's neutered or not.
>
> BUG=v8:3996
> R=hpayer@chromium.org,dslomov@chromium.org,verwaest@chromium.org
> LOG=n
>
> Committed: https://crrev.com/5ae083a05a6743d6cb91585f449539f7846a5d8c
> Cr-Commit-Position: refs/heads/master@{#27995}

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

Review URL: https://codereview.chromium.org/1061753008

Cr-Commit-Position: refs/heads/master@{#28014}

R=jarin@chromium.org,mstarzinger@chromium.org
BUG=

Review URL: https://codereview.chromium.org/1100113002

Cr-Commit-Position: refs/heads/master@{#28013}

TBR=mstarzinger@chromium.org
NOTRY=true
BUG=v8:4055
LOG=N

Review URL: https://codereview.chromium.org/1098293002

Cr-Commit-Position: refs/heads/master@{#28012}

Revert of Revert of Always optimize for adding properties to native objects. (patchset #1 id:1 of https://codereview.chromium.org/1098223004/)

Reason for revert:
Test failure was not due to this.

Original issue's description:
> Revert of Always optimize for adding properties to native objects. (patchset #1 id:1 of https://codereview.chromium.org/1094383004/)
>
> Reason for revert:
> GC stress failure (custom snapshot)
>
> Original issue's description:
> > Always optimize for adding properties to native objects.
> >
> > R=jkummerow@chromium.org
> >
> > Committed: https://crrev.com/c715098e85b93def76c0b3f54290c811dea04f01
> > Cr-Commit-Position: refs/heads/master@{#28003}
>
> TBR=jkummerow@chromium.org
> NOPRESUBMIT=true
> NOTREECHECKS=true
> NOTRY=true
>
> Committed: https://crrev.com/bb6958ceff221e66adbc4581471a8ce1b41a4684
> Cr-Commit-Position: refs/heads/master@{#28009}

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

Review URL: https://codereview.chromium.org/1100123002

Cr-Commit-Position: refs/heads/master@{#28011}

Cr-Commit-Position: refs/heads/master@{#28010}

Revert of Always optimize for adding properties to native objects. (patchset #1 id:1 of https://codereview.chromium.org/1094383004/)

Reason for revert:
GC stress failure (custom snapshot)

Original issue's description:
> Always optimize for adding properties to native objects.
>
> R=jkummerow@chromium.org
>
> Committed: https://crrev.com/c715098e85b93def76c0b3f54290c811dea04f01
> Cr-Commit-Position: refs/heads/master@{#28003}

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

Review URL: https://codereview.chromium.org/1098223004

Cr-Commit-Position: refs/heads/master@{#28009}

Review URL: https://codereview.chromium.org/981203003

Cr-Commit-Position: refs/heads/master@{#28008}

BUG=

Review URL: https://codereview.chromium.org/1094243004

Cr-Commit-Position: refs/heads/master@{#28007}

this is necessary for the greedy allocator to use the relevant functions, as well as the sanity of someone looking at the code

BUG=

Review URL: https://codereview.chromium.org/1056063004

Cr-Commit-Position: refs/heads/master@{#28006}

R=marja@chromium.org,rossberg@chromium.org

Review URL: https://codereview.chromium.org/1065983005

Cr-Commit-Position: refs/heads/master@{#28005}

Review URL: https://codereview.chromium.org/1101683002

Cr-Commit-Position: refs/heads/master@{#28004}

R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/1094383004

Cr-Commit-Position: refs/heads/master@{#28003}

R=bmeurer@chromium.org, mstarzinger@chromium.org
BUG=

Review URL: https://codereview.chromium.org/1090303004

Cr-Commit-Position: refs/heads/master@{#28002}

Revert of Revert of [strong] checking of this & super in constructors (patchset #1 id:1 of https://codereview.chromium.org/1105453002/)

Reason for revert:
Was an infrastructure problem.

Original issue's description:
> Revert of [strong] checking of this & super in constructors (patchset #7 id:110001 of https://codereview.chromium.org/1024063002/)
>
> Reason for revert:
> [Sheriff] Breaks mac gc stress:
> http://build.chromium.org/p/client.v8/builders/V8%20Mac%20GC%20Stress/builds/1024
>
> Original issue's description:
> > [strong] checking of this & super in constructors
> >
> > R=dslomov@chromium.org, marja@chromium.org
> > BUG=v8:3956
> > LOG=N
> >
> > Enforces for constructors that
> > - the only use of 'super' is the super constructor call
> > - the only use of 'this' is a property assignment
> > - both of these must happen at the top-level of the body
> > - 'this' may only be assigned after the 'super' call
> > - 'return' may only be used after the last assignment to 'this'
> >
> > Not yet working for arrow functions (there might be deeper bugs with those).
> >
> > Committed: https://crrev.com/580d66bcda66220d2f3062ac58daf925436df74c
> > Cr-Commit-Position: refs/heads/master@{#27977}
>
> TBR=dslomov@chromium.org,marja@chromium.org,conradw@chromium.org,rossberg@chromium.org
> NOPRESUBMIT=true
> NOTREECHECKS=true
> NOTRY=true
> BUG=v8:3956

TBR=dslomov@chromium.org,marja@chromium.org,conradw@chromium.org,rossberg@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:3956

Review URL: https://codereview.chromium.org/1073103004

Cr-Commit-Position: refs/heads/master@{#28001}

Revert of Revert of Protect the emptiness of Array prototype elements with a PropertyCell. (patchset #1 id:1 of https://codereview.chromium.org/1099203004/)

Reason for revert:
This was probably an infrastructure problem caused by the mac ninja/goma switch.

Original issue's description:
> Revert of Protect the emptiness of Array prototype elements with a PropertyCell. (patchset #7 id:120001 of https://codereview.chromium.org/1092043002/)
>
> Reason for revert:
> MAC GCSTRESS failure on new test.
>
> Original issue's description:
> > Protect the emptiness of Array prototype elements with a PropertyCell.
> >
> > Not just emptiness, but also a particular structure.
> >
> > BUG=v8:4044
> > LOG=N
>
> TBR=jkummerow@chromium.org
> NOPRESUBMIT=true
> NOTREECHECKS=true
> NOTRY=true
> BUG=v8:4044

TBR=jkummerow@chromium.org,mvstanton@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:4044

Review URL: https://codereview.chromium.org/1052253003

Cr-Commit-Position: refs/heads/master@{#28000}

Revert of Revert of [es6] don't throw if argument is non-object (O.freeze, O.seal, O.preventExtensions) (patchset #1 id:1 of https://codereview.chromium.org/1103473003/)

Reason for revert:
This was probably an infrastructure problem caused by the mac ninja/goma switch.

Original issue's description:
> Revert of [es6] don't throw if argument is non-object (O.freeze, O.seal, O.preventExtensions) (patchset #7 id:140001 of https://codereview.chromium.org/1011823003/)
>
> Reason for revert:
> [Sheriff] breaks mac gc stress:
> http://build.chromium.org/p/client.v8/builders/V8%20Mac%20GC%20Stress/builds/1029
>
> Original issue's description:
> > [es6] don't throw if argument is non-object (O.freeze, O.seal, O.preventExtensions)
> >
> > BUG=v8:3965, v8:3966
> > R=arv@chromium.org
> > LOG=N
> >
> > Committed: https://crrev.com/b09c048f693d280052ac63c7d6b3baf27b3bf271
> > Cr-Commit-Position: refs/heads/master@{#27985}
>
> TBR=arv@chromium.org,caitpotter88@gmail.com
> NOPRESUBMIT=true
> NOTREECHECKS=true
> NOTRY=true
> BUG=v8:3965, v8:3966

TBR=arv@chromium.org,caitpotter88@gmail.com
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:3965, v8:3966

Review URL: https://codereview.chromium.org/1098243002

Cr-Commit-Position: refs/heads/master@{#27999}

Revert of Protect the emptiness of Array prototype elements with a PropertyCell. (patchset #7 id:120001 of https://codereview.chromium.org/1092043002/)

Reason for revert:
MAC GCSTRESS failure on new test.

Original issue's description:
> Protect the emptiness of Array prototype elements with a PropertyCell.
>
> Not just emptiness, but also a particular structure.
>
> BUG=v8:4044
> LOG=N

TBR=jkummerow@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:4044

Review URL: https://codereview.chromium.org/1099203004

Cr-Commit-Position: refs/heads/master@{#27998}

Revert of Revert of [es6] implement Array.prototype.copyWithin() (patchset #1 id:1 of https://codereview.chromium.org/1084183004/)

Reason for revert:
Check if this CL fails independently of https://chromium.googlesource.com/v8/v8/+/580d66bcda66220d2f3062ac58daf925436df74c

Original issue's description:
> Revert of [es6] implement Array.prototype.copyWithin() (patchset #7 id:120001 of https://codereview.chromium.org/376623004/)
>
> Reason for revert:
> [Sheriff] This causes test failures on mac gc stress:
> http://build.chromium.org/p/client.v8/builders/V8%20Mac%20GC%20Stress/builds/1027
>
> Original issue's description:
> > [es6] implement Array.prototype.copyWithin()
> >
> > https://people.mozilla.org/~jorendorff/es6-draft.html#sec-array.prototype.copywithin
> >
> > BUG=v8:4039
> > R=adamk@chromium.org
> > LOG=N
>
> TBR=dslomov@chromium.org,rossberg@chromium.org,adamk@chromium.org,caitpotter88@gmail.com
> NOPRESUBMIT=true
> NOTREECHECKS=true
> NOTRY=true
> BUG=v8:4039
>
> Committed: https://crrev.com/9283fc89710e59445bdc4479454fba97ab9ebdd7
> Cr-Commit-Position: refs/heads/master@{#27984}

TBR=dslomov@chromium.org,rossberg@chromium.org,adamk@chromium.org,caitpotter88@gmail.com
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:4039

Review URL: https://codereview.chromium.org/1072193005

Cr-Commit-Position: refs/heads/master@{#27997}

R=hablich@chromium.org

Review URL: https://codereview.chromium.org/1105483002

Cr-Commit-Position: refs/heads/master@{#27996}

Instead, views have to check their array buffer for whether
it's neutered or not.

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

Review URL: https://codereview.chromium.org/1094863002

Cr-Commit-Position: refs/heads/master@{#27995}

BUG=

Review URL: https://codereview.chromium.org/1104463002

Cr-Commit-Position: refs/heads/master@{#27994}

Not just emptiness, but also a particular structure.

BUG=v8:4044
LOG=N

Review URL: https://codereview.chromium.org/1092043002

Cr-Commit-Position: refs/heads/master@{#27993}

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

Review URL: https://codereview.chromium.org/1101653002

Cr-Commit-Position: refs/heads/master@{#27992}

Revert of [strong] checking of this & super in constructors (patchset #7 id:110001 of https://codereview.chromium.org/1024063002/)

Reason for revert:
[Sheriff] Breaks mac gc stress:
http://build.chromium.org/p/client.v8/builders/V8%20Mac%20GC%20Stress/builds/1024

Original issue's description:
> [strong] checking of this & super in constructors
>
> R=dslomov@chromium.org, marja@chromium.org
> BUG=v8:3956
> LOG=N
>
> Enforces for constructors that
> - the only use of 'super' is the super constructor call
> - the only use of 'this' is a property assignment
> - both of these must happen at the top-level of the body
> - 'this' may only be assigned after the 'super' call
> - 'return' may only be used after the last assignment to 'this'
>
> Not yet working for arrow functions (there might be deeper bugs with those).
>
> Committed: https://crrev.com/580d66bcda66220d2f3062ac58daf925436df74c
> Cr-Commit-Position: refs/heads/master@{#27977}

TBR=dslomov@chromium.org,marja@chromium.org,conradw@chromium.org,rossberg@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:3956

Review URL: https://codereview.chromium.org/1105453002

Cr-Commit-Position: refs/heads/master@{#27991}

Revert of [es6] don't throw if argument is non-object (O.freeze, O.seal, O.preventExtensions) (patchset #7 id:140001 of https://codereview.chromium.org/1011823003/)

Reason for revert:
[Sheriff] breaks mac gc stress:
http://build.chromium.org/p/client.v8/builders/V8%20Mac%20GC%20Stress/builds/1029

Original issue's description:
> [es6] don't throw if argument is non-object (O.freeze, O.seal, O.preventExtensions)
>
> BUG=v8:3965, v8:3966
> R=arv@chromium.org
> LOG=N
>
> Committed: https://crrev.com/b09c048f693d280052ac63c7d6b3baf27b3bf271
> Cr-Commit-Position: refs/heads/master@{#27985}

TBR=arv@chromium.org,caitpotter88@gmail.com
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:3965, v8:3966

Review URL: https://codereview.chromium.org/1103473003

Cr-Commit-Position: refs/heads/master@{#27990}

Also adjust the test runner to remove --always-opt for FAST_VARIANTS.

R=machenbach@chromium.org

Review URL: https://codereview.chromium.org/1056423004

Cr-Commit-Position: refs/heads/master@{#27989}

R=ulan@chromium.org
BUG=v8:4050
LOG=N

Review URL: https://codereview.chromium.org/1099103003

Cr-Commit-Position: refs/heads/master@{#27988}

This reverts commit bb346227 because it
adds a lot of overhead without significantly increasing our test
coverage. We need a different approach to deal with this.

TBR=machenbach@chromium.org

Review URL: https://codereview.chromium.org/1099813007

Cr-Commit-Position: refs/heads/master@{#27987}

Rolling v8/tools/clang to 442f528de2269272de9610e9c7186047ce4aaadb

TBR=machenbach@chromium.org

Review URL: https://codereview.chromium.org/1065783004

Cr-Commit-Position: refs/heads/master@{#27986}

BUG=v8:3965, v8:3966
R=arv@chromium.org
LOG=N

Review URL: https://codereview.chromium.org/1011823003

Cr-Commit-Position: refs/heads/master@{#27985}

Revert of [es6] implement Array.prototype.copyWithin() (patchset #7 id:120001 of https://codereview.chromium.org/376623004/)

Reason for revert:
[Sheriff] This causes test failures on mac gc stress:
http://build.chromium.org/p/client.v8/builders/V8%20Mac%20GC%20Stress/builds/1027

Original issue's description:
> [es6] implement Array.prototype.copyWithin()
>
> https://people.mozilla.org/~jorendorff/es6-draft.html#sec-array.prototype.copywithin
>
> BUG=v8:4039
> R=adamk@chromium.org
> LOG=N

TBR=dslomov@chromium.org,rossberg@chromium.org,adamk@chromium.org,caitpotter88@gmail.com
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:4039

Review URL: https://codereview.chromium.org/1084183004

Cr-Commit-Position: refs/heads/master@{#27984}

https://people.mozilla.org/~jorendorff/es6-draft.html#sec-array.prototype.copywithin

BUG=v8:4039
R=adamk@chromium.org
LOG=N

Review URL: https://codereview.chromium.org/376623004

Cr-Commit-Position: refs/heads/master@{#27983}