R=arv@chromium.org
BUG=v8:3330
LOG=N

Review URL: https://codereview.chromium.org/808723002

Cr-Commit-Position: refs/heads/master@{#25847}

R=erik.corry@gmail.com

Review URL: https://codereview.chromium.org/808773003

Cr-Commit-Position: refs/heads/master@{#25846}

It searches for a commit that a given patch can cleanly be applied to.

Review URL: https://codereview.chromium.org/799273003

Cr-Commit-Position: refs/heads/master@{#25845}

BUG=chromium:442703
LOG=n
R=mvstanton@chromium.org

Review URL: https://codereview.chromium.org/809723002

Cr-Commit-Position: refs/heads/master@{#25844}

This actually fixes 3 different issues when accessing Operand1:

   * Object vs. HeapObject

   * Wrong defaults for equals/hash

   * silently dropping const

TEST=test/mjsunit/regress/regress-441099.js
BUG=chromium:441099
LOG=y

Review URL: https://codereview.chromium.org/812563002

Cr-Commit-Position: refs/heads/master@{#25843}

Review URL: https://codereview.chromium.org/805453002

Cr-Commit-Position: refs/heads/master@{#25842}

BUG=

Review URL: https://codereview.chromium.org/793683002

Cr-Commit-Position: refs/heads/master@{#25841}

This greatly reduces the number of nodes in the graph (by more than 20x in
some extreme cases) for the Emscripten python interpreter main function.

BUG=v8:3763
LOG=y
TEST=cctest,mjsunit,unittests
R=svenpanne@chromium.org

Review URL: https://codereview.chromium.org/802353003

Cr-Commit-Position: refs/heads/master@{#25840}

R=jkummerow@chromium.org, yangguo@chromium.org
BUG=

Review URL: https://codereview.chromium.org/799403003

Cr-Commit-Position: refs/heads/master@{#25839}

The bug would occur when we try to Reset() to a position already at the end.

This happens e.g., when the regexp ends with \u. What used to happen in that
case: 1) Advance past \ and u (to the end) (which wouldn't increase next_pos_
enough) 2) Try to parse 4 hex digits 3) When that failed, Reset() to the
position which should've been at the end but wasn't.

To be able to properly Reset() to a position at the end, we need to allow
next_pos_ to move beyond the end (since position() is next_pos_ - 1).

Minimal repro case:

var r = /foo\u/
r.test("foou") // should be true, was false.

(Note that \u not followed by 4 hex didits should be interpreted as an identity
escape. It already worked unless \u was at the end of the regexp.)

BUG=v8:3756
LOG=NO

Review URL: https://codereview.chromium.org/802313003

Cr-Commit-Position: refs/heads/master@{#25838}

R=bmeurer@chromium.org
BUG=

Review URL: https://codereview.chromium.org/803993002

Cr-Commit-Position: refs/heads/master@{#25837}

R=svenpanne@chromium.org

Review URL: https://codereview.chromium.org/811713002

Cr-Commit-Position: refs/heads/master@{#25836}

Patch from issue 800293002 authored by ben@strongloop.com

TBR=yangguo@chromium.org

Review URL: https://codereview.chromium.org/806143002

Cr-Commit-Position: refs/heads/master@{#25835}

TEST=unittests
R=titzer@chromium.org

Review URL: https://codereview.chromium.org/810683003

Cr-Commit-Position: refs/heads/master@{#25834}

port d211608a

original commit message:
  [turbofan] Remove the no-context hack for JSToNumber.

  The ToNumberStub is now able to handle all plain primitives (Numbers,
  Booleans, Null, Undefined and Strings) without context access.

BUG=

Review URL: https://codereview.chromium.org/810683002

Cr-Commit-Position: refs/heads/master@{#25833}

Relanded with fix for always returning Change for PlainPrimitive even
if there was no change. The performance regression on primes.js and
corrections.js is due to unlucky loop header alignment; will be addressed
separately.

TEST=unittests
R=svenpanne@chromium.org

Committed: https://chromium.googlesource.com/v8/v8/+/75484e8d16866eba7aa9c3b87841cd6ce2f466b8

Review URL: https://codereview.chromium.org/799413002

Cr-Commit-Position: refs/heads/master@{#25832}

Revert of [turbofan] Relax effects and context for JSToNumber(x:plain-primitive). (patchset #1 id:1 of https://codereview.chromium.org/799413002/)

Reason for revert:
Performance regressions on primes and corrections benchmarks.

Original issue's description:
> [turbofan] Relax effects and context for JSToNumber(x:plain-primitive).
>
> TEST=unittests
> R=svenpanne@chromium.org
>
> Committed: https://chromium.googlesource.com/v8/v8/+/75484e8d16866eba7aa9c3b87841cd6ce2f466b8

TBR=svenpanne@chromium.org
NOTREECHECKS=true
NOTRY=true

Review URL: https://codereview.chromium.org/806103002

Cr-Commit-Position: refs/heads/master@{#25831}

Rolling v8/tools/clang to 6538d768c1dd43ad3942574cfc5ba90a8e1e0517

TBR=machenbach@chromium.org

Review URL: https://codereview.chromium.org/803183005

Cr-Commit-Position: refs/heads/master@{#25830}

There are no users of this infrastructure yet, so it's behind an off-by-default flag.

Review URL: https://codereview.chromium.org/768633002

Cr-Commit-Position: refs/heads/master@{#25829}

LOG=N
R=dslomov@chromium.org
BUG=

Review URL: https://codereview.chromium.org/799853003

Cr-Commit-Position: refs/heads/master@{#25828}

The snapshot and natives blob files should be output in the out directory
instead of the gen directory so that they can be picked up by the
executable.

BUG=421063
LOG=N

Review URL: https://codereview.chromium.org/805813004

Cr-Commit-Position: refs/heads/master@{#25827}

R=arv@chromium.org
BUG=v8:3330
LOG=Y

Review URL: https://codereview.chromium.org/808433002

Cr-Commit-Position: refs/heads/master@{#25826}

Revert of ES6 computed property names (patchset #9 id:160001 of https://codereview.chromium.org/795573005/)

Reason for revert:
Crashes on Win32

http://build.chromium.org/p/client.v8/builders/V8%20Win32%20-%201/builds/1357

Test: mjsunit/harmony/computed-property-names
Flags: --stress-opt --always-opt
Command: build\Release\d8.exe --test --random-seed=-233815021 --stress-opt --always-opt --nohard-abort --nodead-code-elimination --nofold-constants --harmony-computed-property-names test\mjsunit\mjsunit.js test\mjsunit\harmony\computed-property-names.js

Run #1
Exit code: -1073741819
Result: CRASH
Expected outcomes: PASS

Run #2
Exit code: -1073741819
Result: CRASH
Expected outcomes: PASS

Run #3
Exit code: -1073741819
Result: CRASH
Expected outcomes: PASS

Original issue's description:
> ES6 computed property names
>
> This adds support for computed property names, under the flag
> --harmony-computed-property-names, for both object literals and
> classes.
>
> BUG=v8:3754
> LOG=Y

TBR=dslomov@chromium.org,wingo@igalia.com
NOTREECHECKS=true
NOTRY=true
BUG=v8:3754

Review URL: https://codereview.chromium.org/809433002

Cr-Commit-Position: refs/heads/master@{#25825}

Port d211608a

Original commit message:
The ToNumberStub is now able to handle all plain primitives (Numbers,
Booleans, Null, Undefined and Strings) without context access.

TEST=cctest,mjsunit,unittests
BUG=

Review URL: https://codereview.chromium.org/803973002

Cr-Commit-Position: refs/heads/master@{#25824}

Review URL: https://codereview.chromium.org/803833004

Cr-Commit-Position: refs/heads/master@{#25823}

Review URL: https://codereview.chromium.org/804993002

Cr-Commit-Position: refs/heads/master@{#25822}

This adds support for computed property names, under the flag
--harmony-computed-property-names, for both object literals and
classes.

BUG=v8:3754
LOG=Y

Review URL: https://codereview.chromium.org/795573005

Cr-Commit-Position: refs/heads/master@{#25821}

build is the third number of the V8 version, and very likely to change
(in contrast to the patch level which typically is zero on canaries).

BUG=chromium:440984
R=mvstanton@chromium.org,yangguo@chromium.org
LOG=n

Review URL: https://codereview.chromium.org/802363002

Cr-Commit-Position: refs/heads/master@{#25820}

BUG=

Review URL: https://codereview.chromium.org/806783002

Cr-Commit-Position: refs/heads/master@{#25819}

TEST=unittests
R=svenpanne@chromium.org

Review URL: https://codereview.chromium.org/799413002

Cr-Commit-Position: refs/heads/master@{#25818}

Keyed loads should not unconditionally be compiled to element loads. Update KeyedLoadICs to keep track of the key type, so that Hydrogen can emit ICs for string-keyed loads it doesn't have inline support for.

BUG=v8:3167
R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/755513003

Cr-Commit-Position: refs/heads/master@{#25817}

LayoutDescriptorHelper is now able to calculate the length of contiguous regions of tagged/non-tagged fields.
This functionality is now used by both object visitor and store buffer.

TEST=cctest/test-unboxed-doubles

Review URL: https://codereview.chromium.org/726713003

Cr-Commit-Position: refs/heads/master@{#25816}

Revert of Call DisableInlineAllocation() in heap setup when flag inline_new is off. (patchset #1 id:1 of https://codereview.chromium.org/790353006/)

Reason for revert:
Fix Windows nosnap.

Original issue's description:
> Call DisableInlineAllocation() in heap setup when flag inline_new is off.
>
> BUG=

TBR=ulan@chromium.org,mstarzinger@chromium.org
NOTREECHECKS=true
NOTRY=true
BUG=

Review URL: https://codereview.chromium.org/794053003

Cr-Commit-Position: refs/heads/master@{#25815}

The ToNumberStub is now able to handle all plain primitives (Numbers,
Booleans, Null, Undefined and Strings) without context access.

TEST=cctest,mjsunit,unittests

Review URL: https://codereview.chromium.org/801333002

Cr-Commit-Position: refs/heads/master@{#25814}

BUG=

Review URL: https://codereview.chromium.org/790353006

Cr-Commit-Position: refs/heads/master@{#25813}

TEST=unittests
R=svenpanne@chromium.org

Review URL: https://codereview.chromium.org/801263002

Cr-Commit-Position: refs/heads/master@{#25812}

R=svenpanne@chromium.org

Review URL: https://codereview.chromium.org/806653003

Cr-Commit-Position: refs/heads/master@{#25811}

Review URL: https://codereview.chromium.org/805523002

Cr-Commit-Position: refs/heads/master@{#25810}

TEST=mjsunit/harmony
BUG=v8:3751
LOG=N

Review URL: https://codereview.chromium.org/788053003

Cr-Commit-Position: refs/heads/master@{#25809}

Add support for Symbol.isConcatSpreadable in Array.prototype.concat. This enables spreading non-Array objects with the symbol.

LOG=N
R=dslomov@chromium.org
BUG=

Review URL: https://codereview.chromium.org/771483002

Cr-Commit-Position: refs/heads/master@{#25808}