… (patchset v8#5 id:80001 of https://codereview.chromium.org/1405313002/ )

Reason for revert:
Breaks nosnap: http://build.chromium.org/p/client.v8/builders/V8%20Linux%20-%20nosnap%20-%20debug%20-%202/builds/2407/steps/Check/logs/regress-4395

Original issue's description:
> [es6] Fix scoping for default parameters in arrow functions
>
> When eagerly parsing arrow functions, expressions in default
> parameter initializers are parsed in the enclosing scope,
> rather than in the function's scope (since that scope does not
> yet exist). This leads to VariableProxies being added to the
> wrong scope, and scope chains for FunctionLiterals being incorrect.
>
> This patch addresses these problems by adding a subclass of
> AstExpressionVisitor that moves VariableProxies to the proper
> scope and fixes up scope chains of FunctionLiterals.
>
> More work likely still needs to be done to make this work completely,
> but it's very close to correct.
>
> BUG=v8:4395
> LOG=y
>
> Committed: https://crrev.com/cf72aad39e51de9b7074ea039377c1812f4a2c6b
> Cr-Commit-Position: refs/heads/master@{#31402}

TBR=rossberg@chromium.org,caitpotter88@gmail.com,adamk@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:4395

Review URL: https://codereview.chromium.org/1417463004

Cr-Commit-Position: refs/heads/master@{#31404}

…chset v8#5 id:90008 of https://codereview.chromium.org/1415733004/ )

Reason for revert:
Failing again: http://build.chromium.org/p/client.v8/builders/V8%20Linux64%20GC%20Stress%20-%20custom%20snapshot/builds/2183

Original issue's description:
> Reland of "[heap] Divide available memory upon compaction tasks"
>
> This reverts commit cf71c28.
>
> Original message:
>
> [heap] Divide available memory upon compaction tasks
> - Fairly (round-robin) divide available memory upon compaction tasks.
> - Ensure an upper limit (of memory) since dividing is O(n) for n free-space
>   nodes.
> - Refill from free lists managed by sweeper once a compaction space becomes
>   empty.
>
> Assumption for dividing memory: Memory in the free lists is sparse upon starting
> compaction (which means that only few nodes are available), except for memory
> reducer GCs, which happen in idle time though (so it's less of a problem).
>
> BUG=chromium:524425
> LOG=N
>
> Committed: https://crrev.com/63f42ecb965d04877f45043c1416170b6f79b962
> Cr-Commit-Position: refs/heads/master@{#31436}

TBR=hpayer@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=chromium:524425

Review URL: https://codereview.chromium.org/1405273003

Cr-Commit-Position: refs/heads/master@{#31439}

The current implemention breaks sloppy mode code that uses function
declarations inside blocks at top-level. Work is ongoing on a patch
to fix this issue, but in the meantime it seems reasonable to move
the feature out of staging.

Manual revert of commit 6e07f5a.

Cherry-picked of bab3b55

TBR=littledan@chromium.org,adamk@chromium.org
BUG=chromium:535836
LOG=y

Review URL: https://codereview.chromium.org/1375213005

Cr-Commit-Position: refs/heads/master@{#31029}

Review URL: https://codereview.chromium.org/1387563002 .

Cr-Commit-Position: refs/branch-heads/4.7@{v8#5}
Cr-Branched-From: f3c8926-refs/heads/master@{#31014}

Merged 8779afc
Merged b237b8a
Merged 59a0641
Merged f83b8a6

PPC: Fix trampoline pool blocking.

PPC: [turbofan] Fix trampoline pool blocking.

Fix test-heap/LargeObjectSlotRecording.

Skip test-run-machops/RunComputedCodeObject on AIX and PPC64BE.

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

Review URL: https://codereview.chromium.org/1440293003 .

Cr-Commit-Position: refs/branch-heads/4.8@{#5}
Cr-Branched-From: 10449d4-refs/heads/4.8.271@{#1}
Cr-Branched-From: 2ebd5fc-refs/heads/master@{#31941}

…8#5 id:80001 of https://codereview.chromium.org/1469543003/ )

Reason for revert:
[Sheriff] This breaks ignition on arm sim debug:
https://build.chromium.org/p/client.v8/builders/V8%20Linux%20-%20arm%20-%20sim%20-%20debug/builds/5317

Seems to not be caught by the cq bot that builds release with dchecks.

Original issue's description:
> Disable non-standard Promise functions in staging
>
> This patch removes Promise functions and methods which are absent
> from the ES2015 specification when the --es-staging flag is on.
>
> BUG=v8:3237
> R=rossberg
> LOG=Y
>
> Committed: https://crrev.com/941251af7e04d50ac2243da2870249a42111221a
> Cr-Commit-Position: refs/heads/master@{#32194}

TBR=rossberg@chromium.org,littledan@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:3237

Review URL: https://codereview.chromium.org/1473603002

Cr-Commit-Position: refs/heads/master@{#32199}

…id:80001 of https://codereview.chromium.org/1451843002/ )

Reason for revert:
Fails on V8 Fuzzer: https://build.chromium.org/p/client.v8/builders/V8%20Fuzzer/builds/6028

Original issue's description:
> Move --harmony-destructuring-bind to shipping
>
> Also fix CheckConflictingVarDeclarations() to properly handle
> legacy const bindings. Without that change enabling the flag
> causes code like:
>
>   function f() { const x; var x; }
>
> to throw an early error, rather than wait to throw the error
> until f is invoked.
>
> BUG=v8:811
> LOG=y
> CQ_INCLUDE_TRYBOTS=tryserver.chromium.linux:linux_chromium_rel_ng;tryserver.blink:linux_blink_rel
>
> Committed: https://crrev.com/515093630a4a925a66d550561e38293d49633f10
> Cr-Commit-Position: refs/heads/master@{#32222}

TBR=rossberg@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:811

Review URL: https://codereview.chromium.org/1470333002

Cr-Commit-Position: refs/heads/master@{#32226}

… #1 id:1 of https://codereview.chromium.org/1473603002/ )

Reason for revert:
Breakage in Ignition seems unrelated; relanding.

Original issue's description:
> Revert of Disable non-standard Promise functions in staging (patchset v8#5 id:80001 of https://codereview.chromium.org/1469543003/ )
>
> Reason for revert:
> [Sheriff] This breaks ignition on arm sim debug:
> https://build.chromium.org/p/client.v8/builders/V8%20Linux%20-%20arm%20-%20sim%20-%20debug/builds/5317
>
> Seems to not be caught by the cq bot that builds release with dchecks.
>
> Original issue's description:
> > Disable non-standard Promise functions in staging
> >
> > This patch removes Promise functions and methods which are absent
> > from the ES2015 specification when the --es-staging flag is on.
> >
> > BUG=v8:3237
> > R=rossberg
> > LOG=Y
> >
> > Committed: https://crrev.com/941251af7e04d50ac2243da2870249a42111221a
> > Cr-Commit-Position: refs/heads/master@{#32194}
>
> TBR=rossberg@chromium.org,littledan@chromium.org
> NOPRESUBMIT=true
> NOTREECHECKS=true
> NOTRY=true
> BUG=v8:3237
>
> Committed: https://crrev.com/86bd2b3c23b562213d5af158849dcd65f347a827
> Cr-Commit-Position: refs/heads/master@{#32199}

TBR=rossberg@chromium.org,rmcilroy@chromium.org,machenbach@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:3237

Review URL: https://codereview.chromium.org/1478533002

Cr-Commit-Position: refs/heads/master@{#32235}

…ttps://codereview.chromium.org/1467133006/ )

Reason for revert:
failure here https://build.chromium.org/p/client.v8/builders/V8%20Linux%20-%20nosse4/builds/6842/steps/Check/logs/RandomBitCorrelations12

Original issue's description:
> Add test to check PRNG quality.
>
> Credits go to Erik Corry. Taken from:
> https://github.com/dart-lang/fletch/blob/master/src/shared/random_test.cc
>
> R=jkummerow@chromium.org
> BUG=v8:4566
> LOG=N
>
> Committed: https://crrev.com/1a90af55d1e9d7d84e813dc367d475457c7df1ff
> Cr-Commit-Position: refs/heads/master@{#32211}
>
> Committed: https://crrev.com/3d84f05cd77091ea8dde7821973f13f53dbaa730
> Cr-Commit-Position: refs/heads/master@{#32238}
>
> Committed: https://crrev.com/eeee7ab050013782704b5f89e49d06a30b3455c4
> Cr-Commit-Position: refs/heads/master@{#32246}

TBR=jkummerow@chromium.org,erikcorry@google.com
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:4566

Review URL: https://codereview.chromium.org/1472833004

Cr-Commit-Position: refs/heads/master@{#32247}

…ors. (patchset v8#5 id:80001 of https://codereview.chromium.org/1470253002/ )

Reason for revert:
Still investigating bad canary.

Original issue's description:
> [heap] Refactor evacuation for young and old gen into visitors.
>
> Create a visitor for evacuating objects for young and old generation. This is
> the first step of preparing a task to process, both,  newspace and oldspace
> pages in parallel.
>
> BUG=chromium:524425
> LOG=N
>
> Committed: https://crrev.com/138d9bae5d7014e0d205634a49b5eac3697744c8
> Cr-Commit-Position: refs/heads/master@{#32349}

TBR=mlippautz@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=chromium:524425

Review URL: https://codereview.chromium.org/1483393002

Cr-Commit-Position: refs/heads/master@{#32462}

…ors. (patchset #1 id:1 of https://codereview.chromium.org/1483393002/ )

Reason for revert:
Reland after fixing the potential root cause of the canary crasher.

Original issue's description:
> Revert of [heap] Refactor evacuation for young and old gen into visitors. (patchset v8#5 id:80001 of https://codereview.chromium.org/1470253002/ )
>
> Reason for revert:
> Still investigating bad canary.
>
> Original issue's description:
> > [heap] Refactor evacuation for young and old gen into visitors.
> >
> > Create a visitor for evacuating objects for young and old generation. This is
> > the first step of preparing a task to process, both,  newspace and oldspace
> > pages in parallel.
> >
> > BUG=chromium:524425
> > LOG=N
> >
> > Committed: https://crrev.com/138d9bae5d7014e0d205634a49b5eac3697744c8
> > Cr-Commit-Position: refs/heads/master@{#32349}
>
> TBR=mlippautz@chromium.org
> NOPRESUBMIT=true
> NOTREECHECKS=true
> NOTRY=true
> BUG=chromium:524425
>
> Committed: https://crrev.com/aa24a3135ec308e1f84bce334844caf0cae2437a
> Cr-Commit-Position: refs/heads/master@{#32462}

TBR=mlippautz@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=chromium:524425

Review URL: https://codereview.chromium.org/1493523003

Cr-Commit-Position: refs/heads/master@{#32500}

…ors. (patchset #1 id:1 of https://codereview.chromium.org/1493523003/ )

Reason for revert:
Speculative revert for crashing Canary.

Original issue's description:
> Reland of [heap] Refactor evacuation for young and old gen into visitors. (patchset #1 id:1 of https://codereview.chromium.org/1483393002/ )
>
> Reason for revert:
> Reland after fixing the potential root cause of the canary crasher.
>
> Original issue's description:
> > Revert of [heap] Refactor evacuation for young and old gen into visitors. (patchset v8#5 id:80001 of https://codereview.chromium.org/1470253002/ )
> >
> > Reason for revert:
> > Still investigating bad canary.
> >
> > Original issue's description:
> > > [heap] Refactor evacuation for young and old gen into visitors.
> > >
> > > Create a visitor for evacuating objects for young and old generation. This is
> > > the first step of preparing a task to process, both,  newspace and oldspace
> > > pages in parallel.
> > >
> > > BUG=chromium:524425
> > > LOG=N
> > >
> > > Committed: https://crrev.com/138d9bae5d7014e0d205634a49b5eac3697744c8
> > > Cr-Commit-Position: refs/heads/master@{#32349}
> >
> > TBR=mlippautz@chromium.org
> > NOPRESUBMIT=true
> > NOTREECHECKS=true
> > NOTRY=true
> > BUG=chromium:524425
> >
> > Committed: https://crrev.com/aa24a3135ec308e1f84bce334844caf0cae2437a
> > Cr-Commit-Position: refs/heads/master@{#32462}
>
> TBR=mlippautz@chromium.org
> NOPRESUBMIT=true
> NOTREECHECKS=true
> NOTRY=true
> BUG=chromium:524425
>
> Committed: https://crrev.com/120b640dfce5f02cecc5af72ca0b2b3b93ce8652
> Cr-Commit-Position: refs/heads/master@{#32500}

TBR=hpayer@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=chromium:524425

Review URL: https://codereview.chromium.org/1495583002

Cr-Commit-Position: refs/heads/master@{#32522}

… #1 id:1 of https://codereview.chromium.org/1478533002/ )

Reason for revert:
Will test better; there seems to be a bug related to this.

Original issue's description:
> Reland of Disable non-standard Promise functions in staging (patchset #1 id:1 of https://codereview.chromium.org/1473603002/ )
>
> Reason for revert:
> Breakage in Ignition seems unrelated; relanding.
>
> Original issue's description:
> > Revert of Disable non-standard Promise functions in staging (patchset #5 id:80001 of https://codereview.chromium.org/1469543003/ )
> >
> > Reason for revert:
> > [Sheriff] This breaks ignition on arm sim debug:
> > https://build.chromium.org/p/client.v8/builders/V8%20Linux%20-%20arm%20-%20sim%20-%20debug/builds/5317
> >
> > Seems to not be caught by the cq bot that builds release with dchecks.
> >
> > Original issue's description:
> > > Disable non-standard Promise functions in staging
> > >
> > > This patch removes Promise functions and methods which are absent
> > > from the ES2015 specification when the --es-staging flag is on.
> > >
> > > BUG=v8:3237
> > > R=rossberg
> > > LOG=Y
> > >
> > > Committed: https://crrev.com/941251af7e04d50ac2243da2870249a42111221a
> > > Cr-Commit-Position: refs/heads/master@{#32194}
> >
> > TBR=rossberg@chromium.org,littledan@chromium.org
> > NOPRESUBMIT=true
> > NOTREECHECKS=true
> > NOTRY=true
> > BUG=v8:3237
> >
> > Committed: https://crrev.com/86bd2b3c23b562213d5af158849dcd65f347a827
> > Cr-Commit-Position: refs/heads/master@{#32199}
>
> TBR=rossberg@chromium.org,rmcilroy@chromium.org,machenbach@chromium.org
> NOPRESUBMIT=true
> NOTREECHECKS=true
> NOTRY=true
> BUG=v8:3237
>
> Committed: https://crrev.com/9278b7b05a45c2089007e8b61822af96b5d0c8df
> Cr-Commit-Position: refs/heads/master@{#32235}

TBR=rossberg@chromium.org,rmcilroy@chromium.org,machenbach@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:3237

Review URL: https://codereview.chromium.org/1493713004

Cr-Commit-Position: refs/heads/master@{#32530}

…nd Reflect.apply. (patchset v8#5 id:80001 of https://codereview.chromium.org/1523753002/ )

Reason for revert:
Breaks TSAN somewhow: http://build.chromium.org/p/client.v8/builders/V8%20Linux64%20TSAN/builds/7000

Original issue's description:
> [es6] Correct Function.prototype.apply, Reflect.construct and Reflect.apply.
>
> Introduce a new Apply builtin that forms a correct and optimizable
> foundation for the Function.prototype.apply, Reflect.construct and
> Reflect.apply builtins (which properly does the PrepareForTailCall
> as required by the ES2015 spec).
>
> The new Apply builtin avoids going to the runtime if it is safe to
> just access the backing store elements of the argArray, i.e. if you
> pass a JSArray with no holes, or an unmapped, unmodified sloppy or
> strict arguments object.
>
> mips/mips64 ports by Balazs Kilvady <balazs.kilvady@imgtec.com>
>
> CQ_INCLUDE_TRYBOTS=tryserver.chromium.linux:linux_chromium_rel_ng;tryserver.blink:linux_blink_rel
> BUG=v8:4413, v8:4430
> LOG=n
> R=yangguo@chromium.org
>
> Committed: https://chromium.googlesource.com/v8/v8/+/e4d2538911f6cb4b626830ccbb3c1f5746542697

TBR=yangguo@chromium.org,paul.lind@imgtec.com
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:4413, v8:4430

Review URL: https://codereview.chromium.org/1533803002 .

Cr-Commit-Position: refs/heads/master@{#32928}

…id:80001 of https://codereview.chromium.org/1541233002/ )

Reason for revert:
[Sheriff] Changes layout tests. Please fix upstream first if intended.

https://build.chromium.org/p/client.v8.fyi/builders/V8-Blink%20Linux%2064/builds/3689

Original issue's description:
> Use ES2015-style TypedArray prototype chain
>
> This patch switches TypedArrays to use the prototype chain described
> in the ES2015 specification, which adds a %TypedArray% superclass above
> all individual TypedArray types. Most methods are defined on the
> superclass rather than the subclasses.
>
> In order to prevent a performance regression, a few methods are
> marked as inline. Inlining might prevent code which was previously
> monomorphic from becoming polymorphic, and it was specifically
> applied in places where methods became more polymorphic than before.
> Tests with realistic workloads would be nice to do before this
> ships in stable.
>
> This patch does not bring TypedArrays up to full spec compliance. In
> particular, @@species is not yet supported.
>
> R=cbruni
> BUG=v8:4085
> LOG=Y
>
> Committed: https://crrev.com/07c91dccbe55c7be3ec75857dee5ad59873330b7
> Cr-Commit-Position: refs/heads/master@{#33050}

TBR=caitpotter88@gmail.com,cbruni@chromium.org,littledan@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:4085

Review URL: https://codereview.chromium.org/1554523002

Cr-Commit-Position: refs/heads/master@{#33053}

…:1 of https://codereview.chromium.org/1554523002/ )

Reason for revert:
Should be fixed again with this Blink change to add NeedsManualRebaseline

Original issue's description:
> Revert of Use ES2015-style TypedArray prototype chain (patchset v8#5 id:80001 of https://codereview.chromium.org/1541233002/ )
>
> Reason for revert:
> [Sheriff] Changes layout tests. Please fix upstream first if intended.
>
> https://build.chromium.org/p/client.v8.fyi/builders/V8-Blink%20Linux%2064/builds/3689
>
> Original issue's description:
> > Use ES2015-style TypedArray prototype chain
> >
> > This patch switches TypedArrays to use the prototype chain described
> > in the ES2015 specification, which adds a %TypedArray% superclass above
> > all individual TypedArray types. Most methods are defined on the
> > superclass rather than the subclasses.
> >
> > In order to prevent a performance regression, a few methods are
> > marked as inline. Inlining might prevent code which was previously
> > monomorphic from becoming polymorphic, and it was specifically
> > applied in places where methods became more polymorphic than before.
> > Tests with realistic workloads would be nice to do before this
> > ships in stable.
> >
> > This patch does not bring TypedArrays up to full spec compliance. In
> > particular, @@species is not yet supported.
> >
> > R=cbruni
> > BUG=v8:4085
> > LOG=Y
> >
> > Committed: https://crrev.com/07c91dccbe55c7be3ec75857dee5ad59873330b7
> > Cr-Commit-Position: refs/heads/master@{#33050}
>
> TBR=caitpotter88@gmail.com,cbruni@chromium.org,littledan@chromium.org
> NOPRESUBMIT=true
> NOTREECHECKS=true
> NOTRY=true
> BUG=v8:4085
>
> Committed: https://crrev.com/28b55ffd1e32e09aaf42b8bbb407944d4808e07c
> Cr-Commit-Position: refs/heads/master@{#33053}

TBR=caitpotter88@gmail.com,cbruni@chromium.org,machenbach@chromium.org
BUG=v8:4085
LOG=Y

CQ_INCLUDE_TRYBOTS=tryserver.chromium.linux:linux_chromium_rel_ng;tryserver.blink:linux_blink_rel

Review URL: https://codereview.chromium.org/1558663002

Cr-Commit-Position: refs/heads/master@{#33067}

From the design-doc, must still do: v8#4, v8#5 (the reason it crashes).

…hset v8#5 id:80001 of https://codereview.chromium.org/1702593002/ )

Reason for revert:
[Sheriff] Breaks nosnap debug:
https://build.chromium.org/p/client.v8/builders/V8%20Linux%20-%20nosnap%20-%20debug/builds/5329

Original issue's description:
> More simplification and unification of frame handling
>
> Frame slots indexes numbers are used more consistently for
> computation in both TurboFan and Crankshaft. Specifically,
> Crankshaft now uses frame slot indexes in LChunk, removing
> the need for some special-case maths when building the
> deoptimization translation table.
>
> LOG=N
> R=mstarzinger@chromium.org
>
> Committed: https://crrev.com/81423b84dbb2eaf7e1a57b0f6029fc8e643b4755
> Cr-Commit-Position: refs/heads/master@{#34078}

TBR=mstarzinger@chromium.org,jarin@chromium.org,danno@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true

Review URL: https://codereview.chromium.org/1708583002

Cr-Commit-Position: refs/heads/master@{#34082}

… id:80001 of https://codereview.chromium.org/1686233002/ )

Reason for revert:
[Sheriff] Breaks arm cross-compile:
https://build.chromium.org/p/client.v8/builders/V8%20Arm%20-%20debug%20builder/builds/7825/

Original issue's description:
> Add Scoped Context Info (Isolate) to V8 Traces
>
> This patch adds the newly added support for contexts in V8 Tracing, as well
> as use it to mark all the entry points for a V8 Isolate.
>
> BUG=v8:4565
> LOG=N
>
> Committed: https://crrev.com/44823c3c6965966c63b7e2e2361d0f2a58d196ea
> Cr-Commit-Position: refs/heads/master@{#34092}

TBR=jochen@chromium.org,fmeawad@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:4565

Review URL: https://codereview.chromium.org/1710573002

Cr-Commit-Position: refs/heads/master@{#34095}

…odereview.chromium.org/1748123003/ )

Reason for revert:
Breaks Chromium.

Original issue's description:
> Rework CallApi*Stubs.
>
> - Eliminate stubs with a variable number of arguments.
>   (That only worked due to their very limited use. These
>    stubs' interface descriptors were basically lying
>    about their number of args, which will fail when used
>    generically.)
> - Fix all CallApi*Stubs' interface descriptors to no
>   longer lie about their arguments.
> - Unify CallApi*Stub, for * in Function, Accessor,
>   FunctionWithFixedArgs.
>   (Since these are now all doing the same thing.)
> - Rename the unified stub (and interface descriptors) to
>   *ApiCallback*, since that's really what they're doing.
> - Refuse inlining an API callback if its number of
>   parameters exceeds the supported number of args.
>
> BUG=
>
> Committed: https://crrev.com/d238b953a474272c0e3ea22ef6a9b63fa9729340
> Cr-Commit-Position: refs/heads/master@{#34614}

TBR=danno@chromium.org,jkummerow@chromium.org,mstarzinger@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=

Review URL: https://codereview.chromium.org/1775933005

Cr-Commit-Position: refs/heads/master@{#34624}

Cr-Commit-Position: refs/branch-heads/5.0@{v8#5}
Cr-Branched-From: ad16e6c-refs/heads/5.0.71@{#1}
Cr-Branched-From: bd9df50-refs/heads/master@{#34215}

…70001 of https://codereview.chromium.org/1848433003/ )

Reason for revert:
[Sheriff] Speculative revert. Compile now times out on msan:
https://build.chromium.org/p/client.v8/builders/V8%20Linux%20-%20arm64%20-%20sim%20-%20MSAN/builds/7705

Original issue's description:
> Turbofan: Add MachineOperators for SIMD.
>
> Takes the SIMD runtime intrinsics as a starting point for defining TF machine operators. The rationale for omitting functions is:
>
>  - UInt constructors. int and uint aren't distinguished in wasm.
>  - Check functions.
>  - 'FromXxxBits' functions. These are essentially casts.
>  - Simple Load / Store functions. Existing load / store with SIMD type should work.
>  - Uint functions, except where their behavior is bitwise different from the Int function.
>
> Skipped fns:
>
> Float32x4Check
> Float32x4FromInt32x4Bits
> Float32x4FromUint32x4Bits
> Float32x4FromInt16x8Bits
> Float32x4FromUint16x8Bits
> Float32x4FromInt8x16Bits
> Float32x4FromUint8x16Bits
> Float32x4Load
> Float32x4Store
>
> Int32x4Check
> Int32x4FromUint32x4
> Int32x4FromFloat32x4Bits
> Int32x4FromUint32x4Bits
> Int32x4FromInt16x8Bits
> Int32x4FromUint16x8Bits
> Int32x4FromInt8x16Bits
> Int32x4FromUint8x16Bits
> Int32x4Load
> Int32x4Store
>
> CreateUint32x4
> Uint32x4Check
> Uint32x4ExtractLane
> Uint32x4ReplaceLane
> Uint32x4Add
> Uint32x4Sub
> Uint32x4Mul
> Uint32x4And
> Uint32x4Or
> Uint32x4Xor
> Uint32x4Not
> Uint32x4Equal
> Uint32x4NotEqual
> Uint32x4Select
> Uint32x4Swizzle
> Uint32x4Shuffle
> Uint32x4FromInt32x4
> Uint32x4FromFloat32x4Bits
> Uint32x4FromInt32x4Bits
> Uint32x4FromInt16x8Bits
> Uint32x4FromUint16x8Bits
> Uint32x4FromInt8x16Bits
> Uint32x4FromUint8x16Bits
> Uint32x4Load
> Uint32x4Load1
> Uint32x4Load2
> Uint32x4Load3
> Uint32x4Store
> Uint32x4Store1
> Uint32x4Store2
> Uint32x4Store3
>
> Bool32x4Check
>
> Int16x8Check
> Int16x8FromUint16x8
> Int16x8FromFloat32x4Bits
> Int16x8FromInt32x4Bits
> Int16x8FromUint32x4Bits
> Int16x8FromUint16x8Bits
> Int16x8FromInt8x16Bits
> Int16x8FromUint8x16Bits
> Int16x8Load
> Int16x8Store
>
> CreateUint16x8
> Uint16x8Check
> Uint16x8ExtractLane
> Uint16x8ReplaceLane
> Uint16x8Add
> Uint16x8Sub
> Uint16x8Mul
> Uint16x8And
> Uint16x8Or
> Uint16x8Xor
> Uint16x8Not
> Uint16x8Equal
> Uint16x8NotEqual
> Uint16x8Select
> Uint16x8Swizzle
> Uint16x8Shuffle
> Uint16x8FromInt16x8
> Uint16x8FromFloat32x4Bits
> Uint16x8FromInt32x4Bits
> Uint16x8FromUint32x4Bits
> Uint16x8FromInt16x8Bits
> Uint16x8FromInt8x16Bits
> Uint16x8FromUint8x16Bits
> Uint16x8Load
> Uint16x8Store
>
> Bool16x8Check
>
> Int8x16Check
> Int8x16FromUint8x16
> Int8x16FromFloat32x4Bits
> Int8x16FromInt32x4Bits
> Int8x16FromUint32x4Bits
> Int8x16FromInt16x8Bits
> Int8x16FromUint16x8Bits
> Int8x16FromUint8x16Bits
> Int8x16Load
> Int8x16Store
>
> CreateUint8x16
> Uint8x16Check
> Uint8x16ExtractLane
> Uint8x16ReplaceLane
> Uint8x16Add
> Uint8x16Sub
> Uint8x16Mul
> Uint8x16And
> Uint8x16Or
> Uint8x16Xor
> Uint8x16Not
> Uint8x16Equal
> Uint8x16NotEqual
> Uint8x16Select
> Uint8x16Swizzle
> Uint8x16Shuffle
> Uint8x16FromInt8x16
> Uint8x16FromFloat32x4Bits
> Uint8x16FromInt32x4Bits
> Uint8x16FromUint32x4Bits
> Uint8x16FromInt16x8Bits
> Uint8x16FromUint16x8Bits
> Uint8x16FromInt8x16Bits
> Uint8x16Load
> Uint8x16Store
>
> Bool8x16Check
>
> LOG=N
> BUG=v8:4124
>
> Committed: https://crrev.com/3831d41e4ce7b162775732cb6ac1f8139e60aa30
> Cr-Commit-Position: refs/heads/master@{#35213}

TBR=bradnelson@chromium.org,gdeepti@chromium.org,titzer@chromium.org,mtrofin@chromium.org,bradnelson@google.com,bmeurer@chromium.org,bbudge@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:4124

Review URL: https://codereview.chromium.org/1850373002

Cr-Commit-Position: refs/heads/master@{#35220}

https://codereview.chromium.org/1850373002/ )

Reason for revert:
Revert didn't help. Still we need to figure out what bothers the msan build.

Original issue's description:
> Revert of Turbofan: Add MachineOperators for SIMD. (patchset v8#5 id:70001 of https://codereview.chromium.org/1848433003/ )
>
> Reason for revert:
> [Sheriff] Speculative revert. Compile now times out on msan:
> https://build.chromium.org/p/client.v8/builders/V8%20Linux%20-%20arm64%20-%20sim%20-%20MSAN/builds/7705
>
> Original issue's description:
> > Turbofan: Add MachineOperators for SIMD.
> >
> > Takes the SIMD runtime intrinsics as a starting point for defining TF machine operators. The rationale for omitting functions is:
> >
> >  - UInt constructors. int and uint aren't distinguished in wasm.
> >  - Check functions.
> >  - 'FromXxxBits' functions. These are essentially casts.
> >  - Simple Load / Store functions. Existing load / store with SIMD type should work.
> >  - Uint functions, except where their behavior is bitwise different from the Int function.
> >
> > Skipped fns:
> >
> > Float32x4Check
> > Float32x4FromInt32x4Bits
> > Float32x4FromUint32x4Bits
> > Float32x4FromInt16x8Bits
> > Float32x4FromUint16x8Bits
> > Float32x4FromInt8x16Bits
> > Float32x4FromUint8x16Bits
> > Float32x4Load
> > Float32x4Store
> >
> > Int32x4Check
> > Int32x4FromUint32x4
> > Int32x4FromFloat32x4Bits
> > Int32x4FromUint32x4Bits
> > Int32x4FromInt16x8Bits
> > Int32x4FromUint16x8Bits
> > Int32x4FromInt8x16Bits
> > Int32x4FromUint8x16Bits
> > Int32x4Load
> > Int32x4Store
> >
> > CreateUint32x4
> > Uint32x4Check
> > Uint32x4ExtractLane
> > Uint32x4ReplaceLane
> > Uint32x4Add
> > Uint32x4Sub
> > Uint32x4Mul
> > Uint32x4And
> > Uint32x4Or
> > Uint32x4Xor
> > Uint32x4Not
> > Uint32x4Equal
> > Uint32x4NotEqual
> > Uint32x4Select
> > Uint32x4Swizzle
> > Uint32x4Shuffle
> > Uint32x4FromInt32x4
> > Uint32x4FromFloat32x4Bits
> > Uint32x4FromInt32x4Bits
> > Uint32x4FromInt16x8Bits
> > Uint32x4FromUint16x8Bits
> > Uint32x4FromInt8x16Bits
> > Uint32x4FromUint8x16Bits
> > Uint32x4Load
> > Uint32x4Load1
> > Uint32x4Load2
> > Uint32x4Load3
> > Uint32x4Store
> > Uint32x4Store1
> > Uint32x4Store2
> > Uint32x4Store3
> >
> > Bool32x4Check
> >
> > Int16x8Check
> > Int16x8FromUint16x8
> > Int16x8FromFloat32x4Bits
> > Int16x8FromInt32x4Bits
> > Int16x8FromUint32x4Bits
> > Int16x8FromUint16x8Bits
> > Int16x8FromInt8x16Bits
> > Int16x8FromUint8x16Bits
> > Int16x8Load
> > Int16x8Store
> >
> > CreateUint16x8
> > Uint16x8Check
> > Uint16x8ExtractLane
> > Uint16x8ReplaceLane
> > Uint16x8Add
> > Uint16x8Sub
> > Uint16x8Mul
> > Uint16x8And
> > Uint16x8Or
> > Uint16x8Xor
> > Uint16x8Not
> > Uint16x8Equal
> > Uint16x8NotEqual
> > Uint16x8Select
> > Uint16x8Swizzle
> > Uint16x8Shuffle
> > Uint16x8FromInt16x8
> > Uint16x8FromFloat32x4Bits
> > Uint16x8FromInt32x4Bits
> > Uint16x8FromUint32x4Bits
> > Uint16x8FromInt16x8Bits
> > Uint16x8FromInt8x16Bits
> > Uint16x8FromUint8x16Bits
> > Uint16x8Load
> > Uint16x8Store
> >
> > Bool16x8Check
> >
> > Int8x16Check
> > Int8x16FromUint8x16
> > Int8x16FromFloat32x4Bits
> > Int8x16FromInt32x4Bits
> > Int8x16FromUint32x4Bits
> > Int8x16FromInt16x8Bits
> > Int8x16FromUint16x8Bits
> > Int8x16FromUint8x16Bits
> > Int8x16Load
> > Int8x16Store
> >
> > CreateUint8x16
> > Uint8x16Check
> > Uint8x16ExtractLane
> > Uint8x16ReplaceLane
> > Uint8x16Add
> > Uint8x16Sub
> > Uint8x16Mul
> > Uint8x16And
> > Uint8x16Or
> > Uint8x16Xor
> > Uint8x16Not
> > Uint8x16Equal
> > Uint8x16NotEqual
> > Uint8x16Select
> > Uint8x16Swizzle
> > Uint8x16Shuffle
> > Uint8x16FromInt8x16
> > Uint8x16FromFloat32x4Bits
> > Uint8x16FromInt32x4Bits
> > Uint8x16FromUint32x4Bits
> > Uint8x16FromInt16x8Bits
> > Uint8x16FromUint16x8Bits
> > Uint8x16FromInt8x16Bits
> > Uint8x16Load
> > Uint8x16Store
> >
> > Bool8x16Check
> >
> > LOG=N
> > BUG=v8:4124
> >
> > Committed: https://crrev.com/3831d41e4ce7b162775732cb6ac1f8139e60aa30
> > Cr-Commit-Position: refs/heads/master@{#35213}
>
> TBR=bradnelson@chromium.org,gdeepti@chromium.org,titzer@chromium.org,mtrofin@chromium.org,bradnelson@google.com,bmeurer@chromium.org,bbudge@chromium.org
> # Skipping CQ checks because original CL landed less than 1 days ago.
> NOPRESUBMIT=true
> NOTREECHECKS=true
> NOTRY=true
> BUG=v8:4124
>
> Committed: https://crrev.com/8481ec6016992e0b9ffb70137e9ff8fcd4135bba
> Cr-Commit-Position: refs/heads/master@{#35220}

TBR=bradnelson@chromium.org,gdeepti@chromium.org,titzer@chromium.org,mtrofin@chromium.org,bradnelson@google.com,bmeurer@chromium.org,bbudge@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:4124

Review URL: https://codereview.chromium.org/1850383002

Cr-Commit-Position: refs/heads/master@{#35221}

https://codereview.chromium.org/1850383002/ )

Reason for revert:
The first revert did help after all. See comments on:
https://codereview.chromium.org/1848433003/

Original issue's description:
> Reland of Turbofan: Add MachineOperators for SIMD. (patchset #1 id:1 of https://codereview.chromium.org/1850373002/ )
>
> Reason for revert:
> Revert didn't help. Still we need to figure out what bothers the msan build.
>
> Original issue's description:
> > Revert of Turbofan: Add MachineOperators for SIMD. (patchset v8#5 id:70001 of https://codereview.chromium.org/1848433003/ )
> >
> > Reason for revert:
> > [Sheriff] Speculative revert. Compile now times out on msan:
> > https://build.chromium.org/p/client.v8/builders/V8%20Linux%20-%20arm64%20-%20sim%20-%20MSAN/builds/7705
> >
> > Original issue's description:
> > > Turbofan: Add MachineOperators for SIMD.
> > >
> > > Takes the SIMD runtime intrinsics as a starting point for defining TF machine operators. The rationale for omitting functions is:
> > >
> > >  - UInt constructors. int and uint aren't distinguished in wasm.
> > >  - Check functions.
> > >  - 'FromXxxBits' functions. These are essentially casts.
> > >  - Simple Load / Store functions. Existing load / store with SIMD type should work.
> > >  - Uint functions, except where their behavior is bitwise different from the Int function.
> > >
> > > Skipped fns:
> > >
> > > Float32x4Check
> > > Float32x4FromInt32x4Bits
> > > Float32x4FromUint32x4Bits
> > > Float32x4FromInt16x8Bits
> > > Float32x4FromUint16x8Bits
> > > Float32x4FromInt8x16Bits
> > > Float32x4FromUint8x16Bits
> > > Float32x4Load
> > > Float32x4Store
> > >
> > > Int32x4Check
> > > Int32x4FromUint32x4
> > > Int32x4FromFloat32x4Bits
> > > Int32x4FromUint32x4Bits
> > > Int32x4FromInt16x8Bits
> > > Int32x4FromUint16x8Bits
> > > Int32x4FromInt8x16Bits
> > > Int32x4FromUint8x16Bits
> > > Int32x4Load
> > > Int32x4Store
> > >
> > > CreateUint32x4
> > > Uint32x4Check
> > > Uint32x4ExtractLane
> > > Uint32x4ReplaceLane
> > > Uint32x4Add
> > > Uint32x4Sub
> > > Uint32x4Mul
> > > Uint32x4And
> > > Uint32x4Or
> > > Uint32x4Xor
> > > Uint32x4Not
> > > Uint32x4Equal
> > > Uint32x4NotEqual
> > > Uint32x4Select
> > > Uint32x4Swizzle
> > > Uint32x4Shuffle
> > > Uint32x4FromInt32x4
> > > Uint32x4FromFloat32x4Bits
> > > Uint32x4FromInt32x4Bits
> > > Uint32x4FromInt16x8Bits
> > > Uint32x4FromUint16x8Bits
> > > Uint32x4FromInt8x16Bits
> > > Uint32x4FromUint8x16Bits
> > > Uint32x4Load
> > > Uint32x4Load1
> > > Uint32x4Load2
> > > Uint32x4Load3
> > > Uint32x4Store
> > > Uint32x4Store1
> > > Uint32x4Store2
> > > Uint32x4Store3
> > >
> > > Bool32x4Check
> > >
> > > Int16x8Check
> > > Int16x8FromUint16x8
> > > Int16x8FromFloat32x4Bits
> > > Int16x8FromInt32x4Bits
> > > Int16x8FromUint32x4Bits
> > > Int16x8FromUint16x8Bits
> > > Int16x8FromInt8x16Bits
> > > Int16x8FromUint8x16Bits
> > > Int16x8Load
> > > Int16x8Store
> > >
> > > CreateUint16x8
> > > Uint16x8Check
> > > Uint16x8ExtractLane
> > > Uint16x8ReplaceLane
> > > Uint16x8Add
> > > Uint16x8Sub
> > > Uint16x8Mul
> > > Uint16x8And
> > > Uint16x8Or
> > > Uint16x8Xor
> > > Uint16x8Not
> > > Uint16x8Equal
> > > Uint16x8NotEqual
> > > Uint16x8Select
> > > Uint16x8Swizzle
> > > Uint16x8Shuffle
> > > Uint16x8FromInt16x8
> > > Uint16x8FromFloat32x4Bits
> > > Uint16x8FromInt32x4Bits
> > > Uint16x8FromUint32x4Bits
> > > Uint16x8FromInt16x8Bits
> > > Uint16x8FromInt8x16Bits
> > > Uint16x8FromUint8x16Bits
> > > Uint16x8Load
> > > Uint16x8Store
> > >
> > > Bool16x8Check
> > >
> > > Int8x16Check
> > > Int8x16FromUint8x16
> > > Int8x16FromFloat32x4Bits
> > > Int8x16FromInt32x4Bits
> > > Int8x16FromUint32x4Bits
> > > Int8x16FromInt16x8Bits
> > > Int8x16FromUint16x8Bits
> > > Int8x16FromUint8x16Bits
> > > Int8x16Load
> > > Int8x16Store
> > >
> > > CreateUint8x16
> > > Uint8x16Check
> > > Uint8x16ExtractLane
> > > Uint8x16ReplaceLane
> > > Uint8x16Add
> > > Uint8x16Sub
> > > Uint8x16Mul
> > > Uint8x16And
> > > Uint8x16Or
> > > Uint8x16Xor
> > > Uint8x16Not
> > > Uint8x16Equal
> > > Uint8x16NotEqual
> > > Uint8x16Select
> > > Uint8x16Swizzle
> > > Uint8x16Shuffle
> > > Uint8x16FromInt8x16
> > > Uint8x16FromFloat32x4Bits
> > > Uint8x16FromInt32x4Bits
> > > Uint8x16FromUint32x4Bits
> > > Uint8x16FromInt16x8Bits
> > > Uint8x16FromUint16x8Bits
> > > Uint8x16FromInt8x16Bits
> > > Uint8x16Load
> > > Uint8x16Store
> > >
> > > Bool8x16Check
> > >
> > > LOG=N
> > > BUG=v8:4124
> > >
> > > Committed: https://crrev.com/3831d41e4ce7b162775732cb6ac1f8139e60aa30
> > > Cr-Commit-Position: refs/heads/master@{#35213}
> >
> > TBR=bradnelson@chromium.org,gdeepti@chromium.org,titzer@chromium.org,mtrofin@chromium.org,bradnelson@google.com,bmeurer@chromium.org,bbudge@chromium.org
> > # Skipping CQ checks because original CL landed less than 1 days ago.
> > NOPRESUBMIT=true
> > NOTREECHECKS=true
> > NOTRY=true
> > BUG=v8:4124
> >
> > Committed: https://crrev.com/8481ec6016992e0b9ffb70137e9ff8fcd4135bba
> > Cr-Commit-Position: refs/heads/master@{#35220}
>
> TBR=bradnelson@chromium.org,gdeepti@chromium.org,titzer@chromium.org,mtrofin@chromium.org,bradnelson@google.com,bmeurer@chromium.org,bbudge@chromium.org
> # Skipping CQ checks because original CL landed less than 1 days ago.
> NOPRESUBMIT=true
> NOTREECHECKS=true
> NOTRY=true
> BUG=v8:4124
>
> Committed: https://crrev.com/1f46e3ee8cec6b06b30b569e5688de095c4661ff
> Cr-Commit-Position: refs/heads/master@{#35221}

TBR=bradnelson@chromium.org,gdeepti@chromium.org,titzer@chromium.org,mtrofin@chromium.org,bradnelson@google.com,bmeurer@chromium.org,bbudge@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:4124

Review URL: https://codereview.chromium.org/1846413002

Cr-Commit-Position: refs/heads/master@{#35222}

…n-monomorphic-cache (patchset v8#5 id:80001 of https://codereview.chromium.org/1864703003/ )

Reason for revert:
[Sheriff] Check during mksnapshot:
https://build.chromium.org/p/client.v8/builders/V8%20Linux%20ASAN%20mipsel%20-%20debug%20builder/builds/5950/steps/compile/logs/stdio

Original issue's description:
> Turn StoreIC::Megamorphic into a builtin, get rid of the non-monomorphic-cache
>
> BUG=
>
> Committed: https://crrev.com/8764f87a3399ba433a4ce6f32161181c713af95c
> Cr-Commit-Position: refs/heads/master@{#35376}

TBR=mvstanton@chromium.org,hpayer@chromium.org,verwaest@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=

Review URL: https://codereview.chromium.org/1875033003

Cr-Commit-Position: refs/heads/master@{#35379}

…ttps://codereview.chromium.org/1854713002/ )

Reason for revert:
performance impact

Original issue's description:
> Correctly annotate eval origin.
>
> There were a couple of issues with it:
> - interpreter is not supported
> - the source position was just accidentally correct for full-codegen
> - the eval origin could have been cached
>
> Also fixes a few other places to use AbstractCode.
>
> R=mstarzinger@chromium.org
>
> Committed: https://crrev.com/2f3a171adc9e620c2235bf0562145b9d4eaba66d
> Cr-Commit-Position: refs/heads/master@{#35257}
>
> Committed: https://crrev.com/ad4e8a27963b704bb70ec8bac0991c57296b1d16
> Cr-Commit-Position: refs/heads/master@{#35481}

TBR=mstarzinger@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true

Review URL: https://codereview.chromium.org/1888013002

Cr-Commit-Position: refs/heads/master@{#35491}

…:120001 of https://codereview.chromium.org/1913083002/ )

Reason for revert:
Creates a spike of OOM(v8) crashers on Win32.

Original issue's description:
> [heap] Uncommit pooled pages concurrently
>
> - Move the concurrent unmapping to MemoryAllocator
> - Hide (private) members where possible
> - MemoryAllocator:Free is now the bottleneck for freeing
> - Pooled pages are either allocated from a set of pooled pages are obtained
>   through work stealing from the concurrent unmapper
>
> BUG=chromium:605866, chromium:581412
> LOG=N
>
> Committed: https://crrev.com/2158df87116906160cebc3ad20c97f454822da03
> Cr-Commit-Position: refs/heads/master@{#35797}

TBR=hpayer@chromium.org,mlippautz@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=chromium:605866, chromium:581412

Review URL: https://codereview.chromium.org/1925563003

Cr-Commit-Position: refs/heads/master@{#35819}

…v8#5 id:80001 of https://codereview.chromium.org/1904313004/ )

Reason for revert:
[Sheriff] Looks like this breaks layout tests:
https://build.chromium.org/p/client.v8.fyi/builders/V8-Blink%20Linux%2064/builds/6442

Original issue's description:
> Remove more dead code after Object.observe removal
>
> This moves __{define,lookup}{Getter,Setter}__ to builtins.cc to free up the JavaScript implementation of DefineOwnProperty for deletion.

TBR=verwaest@chromium.org,jkummerow@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true

Review-Url: https://codereview.chromium.org/1929293002
Cr-Commit-Position: refs/heads/master@{#35886}

Merged cf8de86

Fix annotated disassembly in ll_prof.py

R=hablich@chromium.org
NOTRY=true
NOPRESUBMIT=true

Review URL: https://codereview.chromium.org/1871013002

Cr-Commit-Position: refs/branch-heads/5.1@{v8#5}
Cr-Branched-From: 167dc63-refs/heads/5.1.281@{#1}
Cr-Branched-From: 03953f5-refs/heads/master@{#35282}

…id:80001 of https://codereview.chromium.org/2156923002/ )

Reason for revert:
Blocks roll: https://build.chromium.org/p/client.v8.ports/builders/V8%20Linux%20-%20arm64%20-%20sim%20-%20debug/builds/1622

Original issue's description:
> [builtins] Introduce a builtin for Abort().
>
> Calling Runtime::kAbort through a builtin instead of the c-entry stub
> will allow to generate the call in a background thread, because a
> builtin provides its own handle, whereas a code stub does not.
>
> @v8-mips-ports: Could you take a special look at the padding that is
> done in MacroAssembler::Abort()?
>
> R=bmeurer@chromium.org, titzer@chromium.org, mstarzinger@chromium.org, v8-mips-ports@googlegroups.com, v8-arm-ports@googlegroups.com
>
> Committed: https://crrev.com/9be015a254cfff871c56cd129523a729637e9158
> Cr-Commit-Position: refs/heads/master@{#37854}

TBR=bmeurer@chromium.org,mstarzinger@chromium.org,titzer@chromium.org,v8-arm-ports@googlegroups.com,v8-mips-ports@googlegroups.com,akos.palfi@imgtec.com,ahaas@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true

Review-Url: https://codereview.chromium.org/2163603003
Cr-Commit-Position: refs/heads/master@{#37883}

…8#5 id:80001 of https://codereview.chromium.org/2156923002/ ).

  port 3e8f49a (r37883)

  original commit message:
  Reason for revert:
  Blocks roll: https://build.chromium.org/p/client.v8.ports/builders/V8%20Linux%20-%20arm64%20-%20sim%20-%20debug/builds/1622

  Original issue's description:
  > [builtins] Introduce a builtin for Abort().
  >
  > Calling Runtime::kAbort through a builtin instead of the c-entry stub
  > will allow to generate the call in a background thread, because a
  > builtin provides its own handle, whereas a code stub does not.
  >
  > @v8-mips-ports: Could you take a special look at the padding that is
  > done in MacroAssembler::Abort()?
  >
  > R=bmeurer@chromium.org, titzer@chromium.org, mstarzinger@chromium.org, v8-mips-ports@googlegroups.com, v8-arm-ports@googlegroups.com
  >
  > Committed: https://crrev.com/9be015a254cfff871c56cd129523a729637e9158
  > Cr-Commit-Position: refs/heads/master@{#37854}

BUG=

Review-Url: https://codereview.chromium.org/2168573002
Cr-Commit-Position: refs/heads/master@{#37888}

…atchset v8#5 id:80001 of https://codereview.chromium.org/2225843002/ )

Reason for revert:
Revert as asan bot blocks the clusterfuzz uploads:

https://build.chromium.org/p/client.v8/builders/V8%20Linux64%20ASAN/builds/14256

https://build.chromium.org/p/client.v8/builders/V8%20Mac64%20ASAN

Please add more skips on reland.

Original issue's description:
> [test] Split TurboFan mjsunit expectations for variants.
>
> R=machenbach@chromium.org
>
> Committed: https://crrev.com/5eed70c6b474635ccdf111e2269dbf33e629ce0b
> Cr-Commit-Position: refs/heads/master@{#38445}

TBR=mstarzinger@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true

Review-Url: https://codereview.chromium.org/2227733002
Cr-Commit-Position: refs/heads/master@{#38446}

…chset v8#5 id:80001 of https://codereview.chromium.org/2180273002/ )

Reason for revert:
Times out webgl errors: https://bugs.chromium.org/p/chromium/issues/detail?id=635545

Original issue's description:
> [KeyedLoadIC] Support Smi "handlers" for element loads
>
> This is an experiment as far as performance is concerned. If Smi-configured
> element loading directly from the dispatcher stub is fast enough, then we
> can stop compiling LoadFastElementStubs (and drop the corresponding code).
>
> Committed: https://crrev.com/c9308147b341596de2733039223918a6202afa5f
> Cr-Commit-Position: refs/heads/master@{#38377}

BUG=chromium:635545
TBR=ishell@chromium.org,jkummerow@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.

Review-Url: https://codereview.chromium.org/2222273003
Cr-Commit-Position: refs/heads/master@{#38473}

…. (patchset v8#5 id:80001 of https://codereview.chromium.org/2266823002/ )

Reason for revert:
Octane/Mandreel aborts with an exception now:

TypeError: __FUNCTION_TABLE__[(r2 >> 2)] is not a function

Original issue's description:
> [turbofan] Insert dummy values when changing from None type.
>
> Currently we choose the MachineRepresentation::kNone representation for
> values of Type::None, and when converting values from the kNone representation
> we use "impossible" conversions that will crash at runtime. This
> assumes that the impossible conversions should never be hit (the only
> way to produce the impossible values is to perform an always-failing
> runtime check on a value, such as Smi-checking a string). Note that
> this assumes that the runtime check is executed before the impossible
> convesrion.
>
> Introducing BitwiseOr type feedback broke this in two ways:
>
> - we always pick Word32 representation for bitwise-or, so the
>   impossible conversion does not trigger (it only triggers with
>   None representation), and we could end up with unsupported
>   conversions from Word32.
>
> - even if we inserted impossible conversions, they are pure conversions.
>   Since untagging, bitwise-or operations are also pure, we could hoist
>   all these before the smi check of the inputs and we could hit the
>   impossible conversions before we get to the smi check.
>
> This CL addresses this by just providing dummy values for conversions
> from the Type::None type. It also removes the impossible-to-* conversions.
>
> BUG=chromium:638132
>
> Committed: https://crrev.com/c83b21ab755f1420b6da85b3ff43d7e96ead9bbe
> Cr-Commit-Position: refs/heads/master@{#38883}

TBR=mstarzinger@chromium.org,jarin@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=chromium:638132

Review-Url: https://codereview.chromium.org/2280613002
Cr-Commit-Position: refs/heads/master@{#38893}

…hset v8#5 id:180001 of https://codereview.chromium.org/2290333002/ )

Reason for revert:
Regressed GC times in v8.infinite_scroll_tbmv2 benchmarks.

Original issue's description:
> [heap] Simplify heuristics for incremental step size.
>
> This patch removes the code for speeding up marking.
>
> Now the step size depends on allocated bytes and
> invoked write barriers.
>
> We also ensure that the step size is large enough to
> justify the overhead of interrupting the generated code.
>
> BUG=chromium:616434
> LOG=NO
>
> Committed: https://crrev.com/71a793e4b1026e69d4009df0a419fe260fe1a235
> Cr-Commit-Position: refs/heads/master@{#39067}

TBR=mlippautz@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=chromium:616434

Review-Url: https://codereview.chromium.org/2304613002
Cr-Commit-Position: refs/heads/master@{#39098}

…loppy mode. (patchset v8#5 id:100001 of https://codereview.chromium.org/2290753003/ )

Reason for revert:
Breaks layout tests:
https://build.chromium.org/p/client.v8.fyi/builders/V8-Blink%20Linux%2064/builds/9470

Original issue's description:
> Allow lexically declared "arguments" in function scope in sloppy mode.
>
> Lexically declared "arguments" in sloppy mode will throw redeclaration error
> currently, this patch fixes it by delaying the declaration of arguments until we
> fully parse parameter list and function body.
>
> BUG=v8:4577
> LOG=N
>
> Committed: https://crrev.com/70a613dd0a5f5d205b46559b55702764464851fa
> Cr-Commit-Position: refs/heads/master@{#39109}

TBR=adamk@chromium.org,mythria@chromium.org,lpy@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:4577

Review-Url: https://codereview.chromium.org/2304853002
Cr-Commit-Position: refs/heads/master@{#39115}

…80001 of https://codereview.chromium.org/2305573002/ )

Reason for revert:
Performance regressions: crbug.com/644087
Clusterfuzz: crbug.com/644074

We'll reland all regexp changes at once when the port is complete and at least performance-neutral, since the partial port requires slow workarounds.

Original issue's description:
> [regexp] Port RegExp getters and setters
>
> BUG=v8:5339
>
> Committed: https://crrev.com/ac0eb5e05af40e16ae9402bb8a62600b32cc2ec9
> Committed: https://crrev.com/7711b1a16f864ed6ea56fa40274ff3f6287bbe34
> Cr-Original-Commit-Position: refs/heads/master@{#39076}
> Cr-Commit-Position: refs/heads/master@{#39088}

TBR=bmeurer@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=v8:5339

Review-Url: https://codereview.chromium.org/2313713002
Cr-Commit-Position: refs/heads/master@{#39176}

…s://codereview.chromium.org/2314803002/ )

Reason for revert:
Breaks arm64 nosnap debug:
https://build.chromium.org/p/client.v8.ports/builders/V8%20Linux%20-%20arm64%20-%20sim%20-%20nosnap%20-%20debug/builds/2178

Original issue's description:
> [heap] Switch to 500k pages
>
> BUG=chromium:636331
> R=ulan@chromium.org
>
> Committed: https://crrev.com/4b618dbf8ec7f0edf377b54b48bf3c852d5e235a
> Cr-Commit-Position: refs/heads/master@{#39220}

TBR=ulan@chromium.org,mlippautz@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=chromium:636331

Review-Url: https://codereview.chromium.org/2312853005
Cr-Commit-Position: refs/heads/master@{#39229}

…s://codereview.chromium.org/2334323006/ )

Reason for revert:
newly introduced test async-await-loop times out: https://build.chromium.org/p/client.v8/builders/V8%20Linux%20-%20arm64%20-%20sim%20-%20MSAN/builds/10894/steps/Ignition%20-%20turbofan%20%28flakes%29/logs/async-await-loop

Original issue's description:
> Fix async/await memory leak
>
> This patch closes a memory leak in async/await where the desugaring
> was creating a situation analagous to that described in v8:5002.
> Intermediate Promises were being kept alive, so a long-running loop
> would cause linear memory usage on the heap. This patch returns
> undefined to the 'then' callback passed into PerformPromiseThen
> in order to avoid this hazard. Test expectations are fixed to remove
> expecting extraneous events which occurred on Promises that are
> now not given unnecessarily complex resolution paths before being
> thrown away.
>
> BUG=v8:5390
>
> Committed: https://crrev.com/a0ba18e9634c5e2d439033ab61a77cff54f9af35
> Cr-Commit-Position: refs/heads/master@{#39479}

TBR=adamk@chromium.org,caitp@igalia.com,littledan@chromium.org
NOTRY=true
BUG=v8:5390

Review-Url: https://codereview.chromium.org/2354473002
Cr-Commit-Position: refs/heads/master@{#39493}

…dereview.chromium.org/2354473002/ )

Reason for revert:
Relanding with faster-running test

Original issue's description:
> Revert of Fix async/await memory leak (patchset v8#5 id:80001 of https://codereview.chromium.org/2334323006/ )
>
> Reason for revert:
> newly introduced test async-await-loop times out: https://build.chromium.org/p/client.v8/builders/V8%20Linux%20-%20arm64%20-%20sim%20-%20MSAN/builds/10894/steps/Ignition%20-%20turbofan%20%28flakes%29/logs/async-await-loop
>
> Original issue's description:
> > Fix async/await memory leak
> >
> > This patch closes a memory leak in async/await where the desugaring
> > was creating a situation analagous to that described in v8:5002.
> > Intermediate Promises were being kept alive, so a long-running loop
> > would cause linear memory usage on the heap. This patch returns
> > undefined to the 'then' callback passed into PerformPromiseThen
> > in order to avoid this hazard. Test expectations are fixed to remove
> > expecting extraneous events which occurred on Promises that are
> > now not given unnecessarily complex resolution paths before being
> > thrown away.
> >
> > BUG=v8:5390
> >
> > Committed: https://crrev.com/a0ba18e9634c5e2d439033ab61a77cff54f9af35
> > Cr-Commit-Position: refs/heads/master@{#39479}
>
> TBR=adamk@chromium.org,caitp@igalia.com,littledan@chromium.org
> NOTRY=true
> BUG=v8:5390
>
> Committed: https://crrev.com/196db1999da130019bbf8e3bd65977f840e8afaf
> Cr-Commit-Position: refs/heads/master@{#39493}

TBR=adamk@chromium.org,caitp@igalia.com,hablich@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
BUG=v8:5390

Review-Url: https://codereview.chromium.org/2348403002
Cr-Commit-Position: refs/heads/master@{#39508}

…ps://codereview.chromium.org/2348403002/ )

Reason for revert:
Still causes issues on bot (sometimes!)

Original issue's description:
> Reland of Fix async/await memory leak (patchset #1 id:1 of https://codereview.chromium.org/2354473002/ )
>
> Reason for revert:
> Relanding with faster-running test
>
> Original issue's description:
> > Revert of Fix async/await memory leak (patchset v8#5 id:80001 of https://codereview.chromium.org/2334323006/ )
> >
> > Reason for revert:
> > newly introduced test async-await-loop times out: https://build.chromium.org/p/client.v8/builders/V8%20Linux%20-%20arm64%20-%20sim%20-%20MSAN/builds/10894/steps/Ignition%20-%20turbofan%20%28flakes%29/logs/async-await-loop
> >
> > Original issue's description:
> > > Fix async/await memory leak
> > >
> > > This patch closes a memory leak in async/await where the desugaring
> > > was creating a situation analagous to that described in v8:5002.
> > > Intermediate Promises were being kept alive, so a long-running loop
> > > would cause linear memory usage on the heap. This patch returns
> > > undefined to the 'then' callback passed into PerformPromiseThen
> > > in order to avoid this hazard. Test expectations are fixed to remove
> > > expecting extraneous events which occurred on Promises that are
> > > now not given unnecessarily complex resolution paths before being
> > > thrown away.
> > >
> > > BUG=v8:5390
> > >
> > > Committed: https://crrev.com/a0ba18e9634c5e2d439033ab61a77cff54f9af35
> > > Cr-Commit-Position: refs/heads/master@{#39479}
> >
> > TBR=adamk@chromium.org,caitp@igalia.com,littledan@chromium.org
> > NOTRY=true
> > BUG=v8:5390
> >
> > Committed: https://crrev.com/196db1999da130019bbf8e3bd65977f840e8afaf
> > Cr-Commit-Position: refs/heads/master@{#39493}
>
> TBR=adamk@chromium.org,caitp@igalia.com,hablich@chromium.org
> # Skipping CQ checks because original CL landed less than 1 days ago.
> BUG=v8:5390
>
> Committed: https://crrev.com/e51482f01f26e0013e6377e85c4d2c41900e403c
> Cr-Commit-Position: refs/heads/master@{#39508}

TBR=adamk@chromium.org,caitp@igalia.com,hablich@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:5390

Review-Url: https://codereview.chromium.org/2348403003
Cr-Commit-Position: refs/heads/master@{#39512}

…atchset v8#5 id:80001 of https://codereview.chromium.org/2367593003/ )

Reason for revert:
Failing on the main waterfall again (again for typedarray, even tho it passed trybots?):

https://build.chromium.org/p/client.v8/builders/V8%20Mac64/builds/11515/steps/Check/logs/typedarray

Original issue's description:
> [turbofan] ChangeFloat64ToTagged shouldn't canonicalize.
>
> This matches current Crankshaft/fullcodegen behavior more closely and
> thus reduces the chances that we run into unnecessary polymorphism due
> to the field representation tracking in our object model.
>
> R=jarin@chromium.org
> BUG=v8:5267
>
> Committed: https://chromium.googlesource.com/v8/v8/+/6a939714e991ebf10d56ddbd2869325cca99c0ef
> Committed: https://crrev.com/ee158e6c4cc896479a32245432a3c2fdd31bcb73
> Cr-Commit-Position: refs/heads/master@{#39692}

TBR=jarin@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:5267

Review-Url: https://codereview.chromium.org/2367963002
Cr-Commit-Position: refs/heads/master@{#39694}

v8#5 id:80001 of https://codereview.chromium.org/2358133004/ )

Reason for revert:
Blocks roll: https://build.chromium.org/p/client.v8.fyi/builders/V8-Blink%20Linux%2064/builds/10075

Original issue's description:
> [stubs] Port String.prototype.substring to TurboFan
>
> BUG=v8:5415
>
> Committed: https://crrev.com/cc37dff7ba21345b3a867a86127a208e34a3f707
> Cr-Commit-Position: refs/heads/master@{#39717}

TBR=ishell@chromium.org,jgruber@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:5415

Review-Url: https://codereview.chromium.org/2369003002
Cr-Commit-Position: refs/heads/master@{#39724}

…patchset v8#5 id:80001 of https://codereview.chromium.org/2367603002/ )

Reason for revert:
Breaks layout tests:
https://build.chromium.org/p/client.v8.fyi/builders/V8-Blink%20Linux%2064/builds/10100

See also:
https://github.com/v8/v8/wiki/Blink%20layout%20tests

Original issue's description:
> [tracing] Support ConvertableToTraceFormat argument type.
>
> Drive-by: Use perfect forwarding for AddTraceEvent arguments.
>
> BUG=406277
>
> Committed: https://crrev.com/dcac49af485fe5d4c0027f153901435dbb29c232
> Cr-Commit-Position: refs/heads/master@{#39742}

TBR=jochen@chromium.org,caseq@chromium.org,fmeawad@chromium.org,alph@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=406277

Review-Url: https://codereview.chromium.org/2371103002
Cr-Commit-Position: refs/heads/master@{#39750}

…8#5 id:80001 of https://codereview.chromium.org/2375793002/ )

Reason for revert:
Suspect for causing win64 debug problems:
https://build.chromium.org/p/client.v8/builders/V8%20Win64%20-%20debug/builds/12646

Original issue's description:
> [modules] Properly initialize declared variables.
>
> Before evaluating a module, all variables declared at the top-level
> in _any_ of the modules in the dependency graph must be initialized.
> This is observable because a module A can access a variable imported
> from module B (e.g. a function) at a point when module B's body hasn't
> been evaluated yet.
>
> We achieve this by implementing modules internally as generators with
> two states (not initialized, initialized).
>
> R=adamk@chromium.org
> BUG=v8:1569
>
> Committed: https://crrev.com/f4dfb6fbe1cdd9a0f287a1a9c496e1f69f6f5d20
> Cr-Commit-Position: refs/heads/master@{#39871}

TBR=adamk@chromium.org,mstarzinger@chromium.org,neis@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:1569

Review-Url: https://codereview.chromium.org/2379063002
Cr-Commit-Position: refs/heads/master@{#39873}

Cr-Commit-Position: refs/branch-heads/5.4@{#5}
Cr-Branched-From: 5ce2827-refs/heads/5.4.500@{#2}
Cr-Branched-From: ad07b49-refs/heads/master@{#38841}

… (patchset v8#5 id:80001 of https://codereview.chromium.org/2384113002/ )

Reason for revert:
Tanks the world.

Original issue's description:
> [turbofan] Osr value typing + dynamic type checks on entry.
>
> This introduces a new OsrGuard node that is inserted during graph building
> to guard the inferred type of the OSR value.
>
> The type of the OSR value is inferred by running the typer before OSR
> deconstruction, and then taking the type from the phi that takes the
> OSR value. After the deconstruction, we throw the types away.
>
> At the moment we only support the SignedSmall OSR type and we always
> pick the tagged representation. Later, we might want to support more
> types (such as Number) and pick better representations (int32/float64).
>
> This CL also removes the OSR deconstruction tests because they build
> unrealistic graph (no effect chain, no loop termination). I considered
> adding the effect chains to the tests, but this would make the tests
> even more brittle.
>
> Committed: https://crrev.com/1f5dc90a900d222da44bee3eff171a2ba1e3c076
> Cr-Commit-Position: refs/heads/master@{#39971}

TBR=bmeurer@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true

Review-Url: https://codereview.chromium.org/2395783002
Cr-Commit-Position: refs/heads/master@{#39985}

…. (patchset v8#5 id:80001 of https://codereview.chromium.org/2384113002/ )"

Fixes:

- Remove OsrGuards on frame specialization (for asm.js).
- Handle the rename in the walk for native context.
- Fix LoadContext effect wiring for Osr context chains.

Review-Url: https://codereview.chromium.org/2388303006
Cr-Commit-Position: refs/heads/master@{#40021}

…e segment pool (patchset v8#5 id:160001 of https://codereview.chromium.org/2348303002/ )

Reason for revert:
related to roll blocker: https://codereview.chromium.org/2400343002/

Original issue's description:
> Replaced different means of zone pooling/reusing by one zone segment pool
>
> BUG=v8:5409
>
> Committed: https://crrev.com/a124feb0760896c8be61de08004a08c3bc9b4b3f
> Committed: https://crrev.com/fc840361e357a571c709e0239ae82cc089800b3f
> Cr-Original-Commit-Position: refs/heads/master@{#39633}
> Cr-Commit-Position: refs/heads/master@{#40048}

TBR=mstarzinger@chromium.org,verwaest@chromium.org,heimbuef@google.com
NOTRY=true
NOPRESUBMIT=true
NOTREECHECKS=true
BUG=v8:5409

Review-Url: https://codereview.chromium.org/2401163002
Cr-Commit-Position: refs/heads/master@{#40099}

Cr-Commit-Position: refs/branch-heads/5.5@{#5}
Cr-Branched-From: 3cbd583-refs/heads/5.5.372@{#1}
Cr-Branched-From: b3c8b0c-refs/heads/master@{#40015}

…chset v8#5 id:100001 of https://codereview.chromium.org/2459903003/ )

Reason for revert:
Speculative revert for blocking roll:
https://codereview.chromium.org/2473003006/

E.g.:
https://build.chromium.org/p/tryserver.chromium.linux/builders/linux_chromium_rel_ng/builds/331898

Original issue's description:
> [Tracing] Use TracingCategoryObserver in gc statistics
>
> This patch is a follow-up patch to enable gc statistics to use
> TracingCategoryObserver.
>
> Previously we need to pass --track_gc_object_stats to v8 if we want to enable
> gc statistics in tracing. In this patch, we introducce an integer flag
> FLAG_gc_stats, and FLAG_track_gc_object_stats and FLAG_trace_gc_object_stats
> will set it to 0x01, tracing will set it to 0x10 when we start tracing and
> reset the bit when we stop tracing.
>
> BUG=v8:5590

TBR=fmeawad@chromium.org,mlippautz@chromium.org,lpy@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:5590

Review-Url: https://codereview.chromium.org/2477143002
Cr-Commit-Position: refs/heads/master@{#40785}

…patchset v8#5 id:80001 of https://codereview.chromium.org/2479123002/ )

Reason for revert:
speculative revert to fix https://uberchromegw.corp.google.com/i/client.v8/builders/V8%20Mac%20GC%20Stress/builds/9646/steps/Mjsunit%20%28flakes%29/logs/debug-scopes

Original issue's description:
> Compiling an array literal should be context-independent.
>
> We are removing use of the debugger context. When the debugger triggers
> compilation, we may not have a context from which to create a JSArray.
>
> R=ishell@chromium.org

TBR=ishell@chromium.org,verwaest@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true

Review-Url: https://codereview.chromium.org/2481363009
Cr-Commit-Position: refs/heads/master@{#40906}

…s (patchset v8#5 id:100001 of https://codereview.chromium.org/2504403005/ )

Reason for revert:
Blocks roll: https://codereview.chromium.org/2526573002/

Original issue's description:
> [stubs] KeyedStoreGeneric: inline dictionary property stores
>
> For dictionary-mode receivers, the KeyedStoreGeneric stub can store
> properties directly in most cases. Doing so avoids the need to have
> an entry in the stub cache for every map/property combination.
>
> Committed: https://crrev.com/af168e330e95c4460fd1bb7734f0e9a750f2e748
> Cr-Commit-Position: refs/heads/master@{#41185}

TBR=ishell@chromium.org,rmcilroy@chromium.org,jkummerow@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true

Review-Url: https://codereview.chromium.org/2528583002
Cr-Commit-Position: refs/heads/master@{#41207}

…chset v8#5 id:80001 of https://codereview.chromium.org/2526783002/ )

Reason for revert:
Need to revert previous CL because of Android compile error, and this one depends in it.

Original issue's description:
> [base] Define CHECK comparison for signed vs. unsigned
>
> The current CHECK/DCHECK implementation fails statically if a signed
> value is compared against an unsigned value. The common solution is to
> cast on each caller, which is tedious and error-prone (might hide bugs).
> This CL implements signed vs. unsigned comparisons by executing up to
> two comparisons. For example, if i is int32_t and u is uint_32_t, a
> DCHECK_LE(i, u) would create the check
> i <= 0 || static_cast<uint32_t>(i) <= u.
> For checks against constants, at least one of the checks can be removed
> by compiler optimizations.
>
> The tradeoff we have to make is to sometimes silently execute an
> additional comparison. And we increase code complexity of course, even
> though the usage is just as easy (or even easier) as before.
>
> The compile time impact seems to be minimal:
> I ran 3 full compilations for Optdebug on my local machine, one time on
> the current ToT, one time with this CL plus http://crrev.com/2524093002.
> Before: 143.72 +- 1.21 seconds
> Now: 144.18 +- 0.67 seconds
>
> In order to check that the new comparisons are working, I refactored
> some DCHECKs in wasm to use the new magic.
>
> R=bmeurer@chromium.org, titzer@chromium.org
>
> Committed: https://crrev.com/5925074a9dab5a8577766545b91b62f2c531d3dc
> Cr-Commit-Position: refs/heads/master@{#41275}

TBR=ishell@chromium.org,titzer@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true

Review-Url: https://codereview.chromium.org/2531533003
Cr-Commit-Position: refs/heads/master@{#41277}

Revision: 06f8e87

BUG=chromium:658267
LOG=N
NOTRY=true
NOPRESUBMIT=true
NOTREECHECKS=true
R=gsathya@chromium.org

Review URL: https://codereview.chromium.org/2512413002 .

Cr-Commit-Position: refs/branch-heads/5.6@{v8#5}
Cr-Branched-From: bdd3886-refs/heads/5.6.326@{#1}
Cr-Branched-From: 879f659-refs/heads/master@{#41014}

…ttps://codereview.chromium.org/2533813002/ )

Reason for revert:
Breaks CI dbg builder:
https://build.chromium.org/p/client.v8/builders/V8%20Win32%20-%20debug%20builder/builds/13817

Original issue's description:
> [build] Use MSVS 2015 by default.
>
> BUG=chromium:603131
> LOG=y
>
> Committed: https://crrev.com/6b9c49cac101d1a373ae1a098b7959f8aff848ac
> Cr-Commit-Position: refs/heads/master@{#41407}

TBR=jochen@chromium.org,vogelheim@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=chromium:603131

Review-Url: https://codereview.chromium.org/2538493007
Cr-Commit-Position: refs/heads/master@{#41409}

… (patchset v8#5 id:80001 of https://codereview.chromium.org/2555243002/ )

Reason for revert:
gc-stress failures

Original issue's description:
> [wasm] Fix location for error in asm.js ToNumber conversion
>
> In the asm.js code translated to wasm, we call imported functions via a
> WASM_TO_JS stub, which first calls the function and then calls ToNumber
> on the return value. Exceptions can happen in both calls.
> We were only ever reporting the location of the function call, whereas
> asm.js code executed via turbofan reported the location of the type
> coercion operator ("+" on "+foo()" or "|" on "foo()|0").
>
> This CL implements the same behaviour for asm.js code translated to
> wasm. The following is changed:
> - the AsmWasmBuilder records the parent node when descending on a binary
>   operator (also "+foo()" is represented by a binary operation).
> - it stores not one location per call in the source position side
>   table, but two (one for the call, one for the parent which does the
>   type coercion).
> - the wasm compiler annotates the source positions "0" and "1" to the
>   two calls in the WASM_TO_JS wrapper (only if the module origin is
>   asm.js).
> - during stack trace generation (in the StackTraceIterator), when we
>   move from the WASM_TO_JS frame to the WASM frame, we remember at which
>   call inside the WASM_TO_JS wrapper we are, and encode this information
>   in the generated caller state, used for the WASM frame.
> - the same information is also stored in the FrameArray which is used
>   to reconstruct the stack trace later.
>
> R=titzer@chromium.org, bradnelson@chromium.org
> CC=jgruber@chromium.org
> BUG=v8:4203,v8:5724
>
> Committed: https://crrev.com/94cd46b55e24fa2bb7b06b3da4d5ba7f029bc262
> Cr-Commit-Position: refs/heads/master@{#41599}

TBR=bradnelson@chromium.org,mstarzinger@chromium.org,titzer@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:4203,v8:5724

Review-Url: https://codereview.chromium.org/2563613003
Cr-Commit-Position: refs/heads/master@{#41601}

TBR=machenbach@chromium.org
NOTRY=True
NOPRESUBMIT=True
BUG=

Review-Url: https://codereview.chromium.org/2574073004
Cr-Commit-Position: refs/heads/gnumb-test/cq@{#5}
Cr-Branched-From: 5c49df2-refs/heads/master@{#41618}