This implements storing named captures on the regexp result object.
For instance, /(?<a>.)/u.exec("b") will return a result such that:

result.group.a  // "b"

The spec proposal is not yet final, so this may still change in the future.

BUG=v8:5437

Review-Url: https://codereview.chromium.org/2630233003
Cr-Original-Commit-Position: refs/heads/master@{#42532}
Committed: https://chromium.googlesource.com/v8/v8/+/70000946eb2a9155679528702a766219a1fcf154
Review-Url: https://codereview.chromium.org/2630233003
Cr-Commit-Position: refs/heads/master@{#42570}

Also switch on validate asm in all configuration to zero out any
comparisons.

BUG=chromium:673246
NOTRY=true
TBR=mstarzinger@chromium.org, rmcilroy@chromium.org

Review-Url: https://codereview.chromium.org/2647493004
Cr-Commit-Position: refs/heads/master@{#42569}

BUG=v8:5876

Review-Url: https://codereview.chromium.org/2644893004
Cr-Commit-Position: refs/heads/master@{#42568}

Create different json files for diffferent optimization attempts of the same function.
This allows to analyze the graphs of early optimization attempts that lead to deopts or to produce a proper json file in the case of a deopt loop.

R=danno@chromium.org

Review-Url: https://codereview.chromium.org/2649513003
Cr-Commit-Position: refs/heads/master@{#42567}

In this particular case, we just did a (lhs)op(rhs), ignoring the case
that lhs and rhs might have different signedness.
This CL changes that to use the proper Cmp##op##Impl implementation,
which does two comparisions for signed-vs-unsigned checks, avoiding
compiler errors.

R=ishell@chromium.org

Review-Url: https://codereview.chromium.org/2642383002
Cr-Commit-Position: refs/heads/master@{#42566}

Do not DCHECK live bytes as they might be inconsistent.

BUG=
TBR=hpayer@chromium.org
NOTRY=true

Review-Url: https://codereview.chromium.org/2647573004
Cr-Commit-Position: refs/heads/master@{#42565}

R=rossberg@chromium.org
BUG=chromium:682659

Review-Url: https://codereview.chromium.org/2646093003
Cr-Commit-Position: refs/heads/master@{#42564}

E.g., ast/ast.h uses Label but shouldn't need to include assembler.h for that. With
this change, we can hope for proper layering in the future (not quite there
yet).

Also includes minor random include lowering and relevant IWYU fixes.

BUG=v8:5294

Review-Url: https://codereview.chromium.org/2645063002
Cr-Commit-Position: refs/heads/master@{#42563}

Moves ownership of the parsing Zone to ParseInfo with a shared_ptr. This is
in preperation for enabling background compilation jobs for inner functions
share the AST in the outer-function's parse zone memory (read-only), with the
and zone being released when all compilation jobs have completed.

BUG=v8:5203,v8:5215

Review-Url: https://codereview.chromium.org/2632123006
Cr-Original-Commit-Position: refs/heads/master@{#42539}
Committed: https://chromium.googlesource.com/v8/v8/+/839b06b64fcaaaa9cceb2c3fd8fd5429e2932095
Review-Url: https://codereview.chromium.org/2632123006
Cr-Commit-Position: refs/heads/master@{#42562}

FAST_DOUBLE_ELEMENTS and FAST_HOLEY_DOUBLE_ELEMENTS kinds should both
be handled by the runtime.

Review-Url: https://codereview.chromium.org/2644643011
Cr-Commit-Position: refs/heads/master@{#42561}

Test that setting breakpoints works for wasm, and that they are hit
correctly.
This basically tests all the layers involved: Compiling and running
wasm interpreter entries, passing arguments to the interpreter, storing
break point infos in wasm objects, getting the right BreakLocation from
wasm frames, and getting stack information from interpreted frames.

BUG=v8:5822
R=titzer@chromium.org, yangguo@chromium.org

Review-Url: https://codereview.chromium.org/2629883002
Cr-Commit-Position: refs/heads/master@{#42560}

The index input of load and store nodes has to be of type int32. However
it is still possible that this index input was lowered by the
Int64Lowering, for example if the index was a kTruncateInt64ToInt32
node. With this CL we check if there exists a replacement of the index
and if so, use the replacement instead of the original index as the
input for the lowered load and store nodes.

BUG=v8:5874
R=titzer@chromium.org, eholk@chromium.org

Review-Url: https://codereview.chromium.org/2644603004
Cr-Commit-Position: refs/heads/master@{#42559}

TBR=maruel@chromium.org
BUG=v8:5872

Review-Url: https://codereview.chromium.org/2645053002
Cr-Commit-Position: refs/heads/master@{#42558}

R=clemensh@chromium.org
BUG=

Review-Url: https://codereview.chromium.org/2644323002
Cr-Commit-Position: refs/heads/master@{#42557}

R=titzer@chromium.org
BUG=

Review-Url: https://codereview.chromium.org/2640113005
Cr-Commit-Position: refs/heads/master@{#42556}

BUG=chromium:651354

Review-Url: https://codereview.chromium.org/2637403011
Cr-Commit-Position: refs/heads/master@{#42555}

BUG=chromium:682706

Review-Url: https://codereview.chromium.org/2644853003
Cr-Commit-Position: refs/heads/master@{#42554}

This particular test case is a hack that abuses Turbofan to
generate code that contains a switch table. Now that some
builtins use the CodeStubAssembler to implement switch tables
we don't need this test case anymore.

TBR=jarin@chromium.org

Review-Url: https://codereview.chromium.org/2645943003
Cr-Commit-Position: refs/heads/master@{#42553}

BUG=v8:5402

Review-Url: https://codereview.chromium.org/2642353002
Cr-Commit-Position: refs/heads/master@{#42552}

Frame inspection is currently limited to locations of execution.
Further details like local variables or stack content will follow later.

The FrameInspector now stores a pointer to the interpreted wasm frame,
and redirects certain requests there, just as for deoptimized frames.
Hitting breakpoints is now also supported for wasm frames.

R=yangguo@chromium.org, titzer@chromium.org
BUG=v8:5822

Review-Url: https://codereview.chromium.org/2629823003
Cr-Commit-Position: refs/heads/master@{#42551}

Enable test after fix.

R=adamk@chromium.org, bmeurer@chromium.org

BUG=v8:5873

Review-Url: https://codereview.chromium.org/2648693003
Cr-Commit-Position: refs/heads/master@{#42550}

Revert of [debugger api] remove legacy JSON debug protocol. (patchset #2 id:20001 of https://codereview.chromium.org/2642253005/ )

Reason for revert:
Node.js relies on this

Original issue's description:
> [debugger api] remove legacy JSON debug protocol.
>
> R=jgruber@chromium.org
> BUG=v8:5530
>
> Review-Url: https://codereview.chromium.org/2642253005
> Cr-Commit-Position: refs/heads/master@{#42543}
> Committed: https://chromium.googlesource.com/v8/v8/+/e26a58e43c51a680a0a6363e0066886f4971a41f

TBR=jgruber@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:5530

Review-Url: https://codereview.chromium.org/2644233003
Cr-Commit-Position: refs/heads/master@{#42549}

ReduceJSStoreDataPropertyInLiteral should not reduce the monomorphic
case if the map got deleted. This has been fixed before in the context
of a larger commit, which was reverted.

R=adamk@chromium.org, mvstanton@chromium.org, bmeurer@chromium.org

BUG=v8:5873

Review-Url: https://codereview.chromium.org/2644733007
Cr-Commit-Position: refs/heads/master@{#42548}

This patch adds destructor to ValueSerializerTest test fixture class
which reset unhandled scheduled exceptions thrown from the current test.
In some cases unhandled scheduled exceptions from current test (eg.
from one test from ValueSerializerTestWithWasm test case) produce that
Context::New(isolate()) from next test's constructor returns NULL.

This error is easily reproduced when unittest file (compiled for ARM or
MIPS simulator) is directly executed (not by tools/run_tests.py script),
so all tests are executed together. When the script is used, each test
from ValueSerializerTestWithWasm test case is separately executed and
unhandled exception from one test doesn't efect to another test from
the same test case.

BUG=

Review-Url: https://codereview.chromium.org/2644083002
Cr-Commit-Position: refs/heads/master@{#42547}

Revert of [debugger] temporarily re-implement --expose-debug-as. (patchset #1 id:1 of https://codereview.chromium.org/2636423002/ )

Reason for revert:
Flag is being removed for 5.8.

Original issue's description:
> [debugger] temporarily re-implement --expose-debug-as.
>
> This is done out of courtesy for Node.js and will be
> removed as soon as we branch for version 5.8.
>
> R=jgruber@chromium.org
>
> Review-Url: https://codereview.chromium.org/2636423002
> Cr-Commit-Position: refs/heads/master@{#42437}
> Committed: https://chromium.googlesource.com/v8/v8/+/cbb7145221dad688ebe86f90bfa4fdd63ea1263e

TBR=jgruber@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.

Review-Url: https://codereview.chromium.org/2641283002
Cr-Commit-Position: refs/heads/master@{#42546}

On ia32 return statements in C++ automatically convert signalling NaNs
to quiet NaNs, even when bit_cast is used. This CL removes all uses of
bit_cast<float> and bit_cast<double> in the wasm compiler and wasm
interpreter.

R=titzer@chromium.org, clemensh@chromium.org

Review-Url: https://codereview.chromium.org/2639353002
Cr-Original-Commit-Position: refs/heads/master@{#42512}
Committed: https://chromium.googlesource.com/v8/v8/+/7739affa5b57e0d28674d476f63de60d71728fb6
Review-Url: https://codereview.chromium.org/2639353002
Cr-Commit-Position: refs/heads/master@{#42545}

The %_ValueOf intrinsic is not used anymore and the runtime call
%ValueOf will also disappear once all the self hosted builtins are
migrated.

R=rmcilroy@chromium.org

Review-Url: https://codereview.chromium.org/2642303003
Cr-Commit-Position: refs/heads/master@{#42544}

R=jgruber@chromium.org
BUG=v8:5530

Review-Url: https://codereview.chromium.org/2642253005
Cr-Commit-Position: refs/heads/master@{#42543}

Revert of [Parse] ParseInfo owns the parsing Zone. (patchset #4 id:60001 of https://codereview.chromium.org/2632123006/ )

Reason for revert:
Crashes on Windows in:
 CompilerDispatcherJobTest.CompileFailureToFinalize
 CompilerDispatcherJobTest.ScopeChain

Original issue's description:
> [Parse] ParseInfo owns the parsing Zone.
>
> Moves ownership of the parsing Zone to ParseInfo with a shared_ptr. This is
> in preperation for enabling background compilation jobs for inner functions
> share the AST in the outer-function's parse zone memory (read-only), with the
> and zone being released when all compilation jobs have completed.
>
> BUG=v8:5203,v8:5215
>
> Review-Url: https://codereview.chromium.org/2632123006
> Cr-Commit-Position: refs/heads/master@{#42539}
> Committed: https://chromium.googlesource.com/v8/v8/+/839b06b64fcaaaa9cceb2c3fd8fd5429e2932095

TBR=marja@chromium.org,mstarzinger@chromium.org,ahaas@chromium.org,verwaest@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:5203,v8:5215

Review-Url: https://codereview.chromium.org/2645613008
Cr-Commit-Position: refs/heads/master@{#42542}

Revert of [Compiler] Have renumber recurse into eagerly compiled function literals. (patchset #2 id:40001 of https://codereview.chromium.org/2648503002/ )

Reason for revert:
Revert in order to revert dependent patchset https://codereview.chromium.org/2632123006/

Original issue's description:
> [Compiler] Have renumber recurse into eagerly compiled function literals.
>
> This enables us to produce the list of eager inner functions for compilation
> in one go during the outer function's renumbering step, and avoid having
> to do renumbering explicitly on the inner functions, simplifying the zone
> ownership.
>
> BUG=v8:5203, v8:5215
>
> Review-Url: https://codereview.chromium.org/2648503002
> Cr-Commit-Position: refs/heads/master@{#42540}
> Committed: https://chromium.googlesource.com/v8/v8/+/3541a074e241421b64ba41d81d8a99bb6ac62c5e

TBR=mstarzinger@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:5203, v8:5215

Review-Url: https://codereview.chromium.org/2643233002
Cr-Commit-Position: refs/heads/master@{#42541}

This enables us to produce the list of eager inner functions for compilation
in one go during the outer function's renumbering step, and avoid having
to do renumbering explicitly on the inner functions, simplifying the zone
ownership.

BUG=v8:5203, v8:5215

Review-Url: https://codereview.chromium.org/2648503002
Cr-Commit-Position: refs/heads/master@{#42540}

Moves ownership of the parsing Zone to ParseInfo with a shared_ptr. This is
in preperation for enabling background compilation jobs for inner functions
share the AST in the outer-function's parse zone memory (read-only), with the
and zone being released when all compilation jobs have completed.

BUG=v8:5203,v8:5215

Review-Url: https://codereview.chromium.org/2632123006
Cr-Commit-Position: refs/heads/master@{#42539}

BUG=chromium:682671

Review-Url: https://codereview.chromium.org/2644283002
Cr-Commit-Position: refs/heads/master@{#42538}

Rationale:

- To do scope analysis based on PreParser, and use the result again when parsing
  later, PreParser and Parser need to produce the same Scopes and variable
  declarations in them.

- This is not the case for non-simple parameters: Parser creates an additional
  inner Scope where the declarations were, whereas PreParser does
  DeclareVariableName directly in the function Scope.

- So this CL fixes that by moving the Scope creation for non-simple parameters
  into ParserBase.

- As a side product (and a partial proof that this change makes sense),
  PreParser::ParseEagerFunctionBody is now gone.

BUG=v8:5516

Review-Url: https://codereview.chromium.org/2638333002
Cr-Commit-Position: refs/heads/master@{#42537}

BUG=chromium:681984
R=yangguo@chromium.org

Review-Url: https://codereview.chromium.org/2640983006
Cr-Commit-Position: refs/heads/master@{#42536}

Let the Typer assign proper types to Map, Set, WeakMap and WeakSet
builtins. Also assign a proper type to Array.isArray, Object.assign
and Object.create.

R=yangguo@chromium.org

Review-Url: https://codereview.chromium.org/2640783006
Cr-Commit-Position: refs/heads/master@{#42535}

Revert of [regexp] Create property on result for each named capture (patchset #5 id:80001 of https://codereview.chromium.org/2630233003/ )

Reason for revert:
Breaks no18n build: https://build.chromium.org/p/client.v8/builders/V8%20Linux%20-%20noi18n%20-%20debug/builds/11604

Original issue's description:
> [regexp] Store named captures on the regexp result
>
> This implements storing named captures on the regexp result object.
> For instance, /(?<a>.)/u.exec("b") will return a result such that:
>
> result.group.a  // "b"
>
> The spec proposal is not yet final, so this may still change in the future.
>
> BUG=v8:5437
>
> Review-Url: https://codereview.chromium.org/2630233003
> Cr-Commit-Position: refs/heads/master@{#42532}
> Committed: https://chromium.googlesource.com/v8/v8/+/70000946eb2a9155679528702a766219a1fcf154

TBR=yangguo@chromium.org,littledan@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:5437

Review-Url: https://codereview.chromium.org/2643213002
Cr-Commit-Position: refs/heads/master@{#42534}

Revert of [heap] Provide ObjectMarking with marking transitions (patchset #5 id:80001 of https://codereview.chromium.org/2644523002/ )

Reason for revert:
Breaks the tree: https://build.chromium.org/p/client.v8/builders/V8%20Linux%20-%20gc%20stress/builds/8349/steps/Mjsunit/logs/compiled-module-seria..

Original issue's description:
> [heap] Provide ObjectMarking with marking transitions
>
> BUG=chromium:651354
>
> Review-Url: https://codereview.chromium.org/2644523002
> Cr-Commit-Position: refs/heads/master@{#42531}
> Committed: https://chromium.googlesource.com/v8/v8/+/cbb8929e97ee475dab4f704a71637e76342e903a

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:651354

Review-Url: https://codereview.chromium.org/2647873002
Cr-Commit-Position: refs/heads/master@{#42533}

This implements storing named captures on the regexp result object.
For instance, /(?<a>.)/u.exec("b") will return a result such that:

result.group.a  // "b"

The spec proposal is not yet final, so this may still change in the future.

BUG=v8:5437

Review-Url: https://codereview.chromium.org/2630233003
Cr-Commit-Position: refs/heads/master@{#42532}

BUG=chromium:651354

Review-Url: https://codereview.chromium.org/2644523002
Cr-Commit-Position: refs/heads/master@{#42531}