Commits · 1ea118d592ed5403ab01eb7fb008d41041a868f5 · Linshizhi / V8

22 Apr, 2015 16 commits

Revert of Revert of [strong] checking of this & super in constructors... · 1ea118d5

machenbach authored Apr 22, 2015

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}

1ea118d5

Revert of Revert of Protect the emptiness of Array prototype elements with a... · 2631c9f5

machenbach authored Apr 22, 2015

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}

2631c9f5

Revert of Revert of [es6] don't throw if argument is non-object (O.freeze,... · 6911943e

machenbach authored Apr 22, 2015

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}

6911943e

Revert of Protect the emptiness of Array prototype elements with a... · 15b98a33

mvstanton authored Apr 22, 2015

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}

15b98a33

Revert of Revert of [es6] implement Array.prototype.copyWithin() (patchset #1... · 27397421

machenbach authored Apr 22, 2015

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}

27397421

[mjsunit] Import asm.js test case for poppler. · 556221a2

Benedikt Meurer authored Apr 22, 2015

R=hablich@chromium.org

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

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

556221a2

Remove the weak list of views from array buffers · 5ae083a0

jochen authored Apr 22, 2015

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}

5ae083a0

add StdGlobalValueMap · 8a9fe731

dcarney authored Apr 22, 2015

BUG=

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

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

8a9fe731

Protect the emptiness of Array prototype elements with a PropertyCell. · b6f075f0

mvstanton authored Apr 22, 2015

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}

b6f075f0

[mjsunit] Skip newly added tests under asan. · 310d205c

machenbach authored Apr 22, 2015

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}

310d205c

Revert of [strong] checking of this & super in constructors (patchset #7... · b3875aac

machenbach authored Apr 22, 2015

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}

b3875aac

Revert of [es6] don't throw if argument is non-object (O.freeze, O.seal,... · 2b97a0e3

machenbach authored Apr 22, 2015

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}

2b97a0e3

[mjsunit] Add custom tests based on SQLite 3.8.9. · 78f2efe0

Benedikt Meurer authored Apr 22, 2015

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}

78f2efe0

Compact weak fixed arrays before serializing. · 7b1b9643

yangguo authored Apr 22, 2015

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

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

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

7b1b9643

Revert "[test] Initial import of an emscripten test suite." · f68e24ad

Benedikt Meurer authored Apr 22, 2015

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}

f68e24ad

Update V8 DEPS. · 3e3c0b20

v8-autoroll authored Apr 22, 2015

Rolling v8/tools/clang to 442f528de2269272de9610e9c7186047ce4aaadb

TBR=machenbach@chromium.org

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

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

3e3c0b20

21 Apr, 2015 24 commits

[es6] don't throw if argument is non-object (O.freeze, O.seal, O.preventExtensions) · b09c048f

caitpotter88 authored Apr 21, 2015

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}

b09c048f

Revert of [es6] implement Array.prototype.copyWithin() (patchset #7 id:120001... · 9283fc89

machenbach authored Apr 21, 2015

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}

9283fc89

[es6] implement Array.prototype.copyWithin() · 6d00703e

caitpotter88 authored Apr 21, 2015

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}

6d00703e

Revert of track global accesses to constant types (patchset #15 id:280001 of... · 99743486

machenbach authored Apr 21, 2015

Revert of track global accesses to constant types (patchset #15 id:280001 of https://codereview.chromium.org/1062163005/)

Reason for revert:
[Sheriff] Speculative revert for maybe breaking layout tests, e.g.
http://build.chromium.org/p/client.v8/builders/V8-Blink%20Linux%2032/builds/2589

Will reland if it doesn't help.

Original issue's description:
> track global accesses to constant types
>
> BUG=

TBR=verwaest@chromium.org,dcarney@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=

Review URL: https://codereview.chromium.org/1094313003

Cr-Commit-Position: refs/heads/master@{#27982}

99743486

Revert of fix bad rebase in r27966 (patchset #1 id:1 of... · 3a676858

machenbach authored Apr 21, 2015

Revert of fix bad rebase in r27966 (patchset #1 id:1 of https://codereview.chromium.org/1083923005/)

Reason for revert:
Needed to revert https://chromium.googlesource.com/v8/v8/+/7bcc3d10835105fadc8ecf42a877dec479f0f80d

Original issue's description:
> fix bad rebase in r27966
>
> TBR=verwaest@chromium.org
>
> BUG=

TBR=verwaest@chromium.org,dcarney@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=

Review URL: https://codereview.chromium.org/1093043003

Cr-Commit-Position: refs/heads/master@{#27981}

3a676858

[es6] stage harmony_spreadcalls · cfe71692

caitpotter88 authored Apr 21, 2015

BUG=v8:3018
R=dslomov@chromium.org, arv@chromium.org, rossberg@chromium.org
LOG=N

Review URL: https://codereview.chromium.org/1096363002

Cr-Commit-Position: refs/heads/master@{#27980}

cfe71692

[turbofan] --turbo implies --turbo-type-feedback and disable fast properties. · cfe6249d

titzer authored Apr 21, 2015

Note: can't be landed until LoadProperty => LoadNamed is fixed.

R=mstarzinger@chromium.org
BUG=

Review URL: https://codereview.chromium.org/1101473004

Cr-Commit-Position: refs/heads/master@{#27979}

cfe6249d

[es6] stage harmony_rest_parameters · 79a0e730

caitpotter88 authored Apr 21, 2015

BUG=v8:2159
R=arv@chromium.org
LOG=N

Review URL: https://codereview.chromium.org/1099813005

Cr-Commit-Position: refs/heads/master@{#27978}

79a0e730

[strong] checking of this & super in constructors · 580d66bc

rossberg authored Apr 21, 2015

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).

Review URL: https://codereview.chromium.org/1024063002

Cr-Commit-Position: refs/heads/master@{#27977}

580d66bc

VectorICs: support converting keyed loads into named loads in crankshaft. · 3099c348

mvstanton authored Apr 21, 2015

This was a TODO for a while in crankshaft, now ready to address.

BUG=
R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/1093413002

Cr-Commit-Position: refs/heads/master@{#27976}

3099c348

Revert of Reland "LayoutDescriptor should inherit from JSTypedArray" (patchset... · 1692380f

jochen authored Apr 21, 2015

Revert of Reland "LayoutDescriptor should inherit from JSTypedArray" (patchset #3 id:40001 of https://codereview.chromium.org/1094333002/)

Reason for revert:
Breaks gbemu

Original issue's description:
> Reland "LayoutDescriptor should inherit from JSTypedArray"
>
> Original issue's description:
> > LayoutDescriptor should inherit from JSTypedArray
> >
> > It can't just inherit from a FixedTypedArray-like type, as we soon
> > assume that a FixedTypedArray-like type is always held by an
> > ArrayBufferView-like type
> >
> > BUG=v8:3996
> > R=ishell@chromium.org,verwaest@chromium.org
> > LOG=n
>
> BUG=v8:3996
> R=ishell@chromium.org,verwaest@chromium.org
> LOG=n

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

Review URL: https://codereview.chromium.org/1080403004

Cr-Commit-Position: refs/heads/master@{#27975}

1692380f

[turbofan] Use FastCloneShallow[Array|Object]Stub if possible. · d1597b7d

mstarzinger authored Apr 21, 2015

This allows the JSIntrinsicLowering to optimize the cloning of literal
boilerplate objects using either the FastCloneShallowArrayStub or the
FastCloneShallowObjectStub when applicable.

R=mvstanton@chromium.org

Review URL: https://codereview.chromium.org/1097963002

Cr-Commit-Position: refs/heads/master@{#27974}

d1597b7d

Reland "LayoutDescriptor should inherit from JSTypedArray" · d20660e0

jochen authored Apr 21, 2015

Original issue's description:
> LayoutDescriptor should inherit from JSTypedArray
>
> It can't just inherit from a FixedTypedArray-like type, as we soon
> assume that a FixedTypedArray-like type is always held by an
> ArrayBufferView-like type
>
> BUG=v8:3996
> R=ishell@chromium.org,verwaest@chromium.org
> LOG=n

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

Review URL: https://codereview.chromium.org/1094333002

Cr-Commit-Position: refs/heads/master@{#27973}

d20660e0

[turbofan] Fix reduction of LoadProperty/StoreProperty to LoadNamed/StoreNamed. · 1850803d

titzer authored Apr 21, 2015

R=mstarzinger@chromium.org
BUG=

Review URL: https://codereview.chromium.org/1095313002

Cr-Commit-Position: refs/heads/master@{#27972}

1850803d

Allow eval/arguments in arrow functions · 8be0499f

wingo authored Apr 21, 2015

Originally landed in https://codereview.chromium.org/1061983004;
re-landing after re-landing formal parameter parsing refactors.

R=marja@chromium.org
BUG=v8:4020
LOG=N

Review URL: https://codereview.chromium.org/1077153005

Cr-Commit-Position: refs/heads/master@{#27971}

8be0499f

fix bad rebase in r27966 · d76c1193

dcarney authored Apr 21, 2015

TBR=verwaest@chromium.org

BUG=

Review URL: https://codereview.chromium.org/1083923005

Cr-Commit-Position: refs/heads/master@{#27970}

d76c1193

Wrap promise implementation in a function. · f76d6a99

yangguo authored Apr 21, 2015

R=mvstanton@chromium.org

Review URL: https://codereview.chromium.org/1054763003

Cr-Commit-Position: refs/heads/master@{#27969}

f76d6a99

Revert of LayoutDescriptor should inherit from JSTypedArray (patchset #1 id:1... · 8a309a1e

jochen authored Apr 21, 2015

Revert of LayoutDescriptor should inherit from JSTypedArray (patchset #1 id:1 of https://codereview.chromium.org/1084793004/)

Reason for revert:
breaks mjsunit on debug bots

Original issue's description:
> LayoutDescriptor should inherit from JSTypedArray
>
> It can't just inherit from a FixedTypedArray-like type, as we soon
> assume that a FixedTypedArray-like type is always held by an
> ArrayBufferView-like type
>
> BUG=v8:3996
> R=ishell@chromium.org,verwaest@chromium.org
> LOG=n

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

Review URL: https://codereview.chromium.org/1073053006

Cr-Commit-Position: refs/heads/master@{#27968}

8a309a1e

Reintroduce %GetRootNaN to fix MIPS. · f3e51833

yangguo authored Apr 21, 2015

R=dusan.milosavljevic@imgtec.com

Review URL: https://codereview.chromium.org/1101503003

Cr-Commit-Position: refs/heads/master@{#27967}

f3e51833

track global accesses to constant types · 7bcc3d10

dcarney authored Apr 21, 2015

BUG=

Review URL: https://codereview.chromium.org/1062163005

Cr-Commit-Position: refs/heads/master@{#27966}

7bcc3d10

Drop unused field from PrototypeInfo · 6b5dd313

jkummerow authored Apr 21, 2015

Review URL: https://codereview.chromium.org/1097313002

Cr-Commit-Position: refs/heads/master@{#27965}

6b5dd313

LayoutDescriptor should inherit from JSTypedArray · 6d79ceb2

jochen authored Apr 21, 2015

It can't just inherit from a FixedTypedArray-like type, as we soon
assume that a FixedTypedArray-like type is always held by an
ArrayBufferView-like type

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

Review URL: https://codereview.chromium.org/1084793004

Cr-Commit-Position: refs/heads/master@{#27964}

6d79ceb2

[turbofan] split all functions off of LinearScanAllocator which are unrelated to LinearScan · d04aee24

dcarney authored Apr 21, 2015

this is in preparation for landing the GreedyAllocator

BUG=

Review URL: https://codereview.chromium.org/1100713003

Cr-Commit-Position: refs/heads/master@{#27963}

d04aee24

[test] Initial import of an emscripten test suite. · bb346227

Benedikt Meurer authored Apr 21, 2015

These tests are based on individual tests from the Emscripten benchmark
suite, which are used to test Emscripten itself. We adopt them to test
asm.js code paths in V8.

TBR=machenbach@chromium.org

Review URL: https://codereview.chromium.org/1101493002

Cr-Commit-Position: refs/heads/master@{#27962}

bb346227