ThreadedList is more memory-efficient than ZoneList. This also enables
us to use ThreadedList when making Preparser track parameters (upcoming
work).

BUG=v8:5501

Review-Url: https://codereview.chromium.org/2531593002
Cr-Commit-Position: refs/heads/master@{#41307}

Reducing visual clutter.

No changes since previous attempt; this was only reverted because it blocked another revert.
Original review: https://codereview.chromium.org/2519093002/

TBR=ishell@chromium.org

Review-Url: https://codereview.chromium.org/2532063002
Cr-Commit-Position: refs/heads/master@{#41306}

R=machenbach@chromium.org
BUG=v8:5677
NOTRY=true

Review-Url: https://codereview.chromium.org/2528363002
Cr-Commit-Position: refs/heads/master@{#41305}

BUG=v8:5435
CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.linux:linux_chromium_compile_dbg_ng;master.tryserver.chromium.android:android_clang_dbg_recipe

Review-Url: https://codereview.chromium.org/2373783002
Cr-Commit-Position: refs/heads/master@{#41304}

The BytecodeGraphBuilder assumes that deoptimization is always enabled,
so always enable it when compiling from bytecode.

BUG=chromium:668654

Review-Url: https://codereview.chromium.org/2531683004
Cr-Commit-Position: refs/heads/master@{#41303}

Up until now assertThrows allows to check the type field of an
exception, which is, however, a custom field introduced in a single
regression test. With the change assertThrows allows to check the
message field of an exception, which is set for standard V8 exceptions
by default.

I use the new assertThrows to refactor test/mjsunit/wasm/divrem-trap.js

R=titzer@chromium.org

Review-Url: https://codereview.chromium.org/2525313003
Cr-Commit-Position: refs/heads/master@{#41302}

A missing @@IsConcatSpreadable check caused the fast path inside the slow path
to be incorrect and follow the default concat strategy when the arguments
arrays contain only doubles.

BUG=chromium:668414

Review-Url: https://codereview.chromium.org/2527173002
Cr-Commit-Position: refs/heads/master@{#41301}

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

Review-Url: https://codereview.chromium.org/2529333002
Cr-Commit-Position: refs/heads/master@{#41300}

AsyncTaskEvents are not exposed through the inspector interface.

BUG=v8:5530

Review-Url: https://codereview.chromium.org/2532693002
Cr-Commit-Position: refs/heads/master@{#41299}

This code is no longer used by full-codegen since all functions which
use new.target, rest parameters or the internal this function binding
now grow through Ignition first, and never tier up to fullcodegen.

BUG=v8:5657
R=rmcilroy@chromium.org

Review-Url: https://codereview.chromium.org/2528293002
Cr-Commit-Position: refs/heads/master@{#41298}

BUG=v8:5603
NOTRY=true

Review-Url: https://codereview.chromium.org/2534813002
Cr-Commit-Position: refs/heads/master@{#41297}

BUG=chromium:668958
TBR=jochen@chromium.org

Review-Url: https://codereview.chromium.org/2531183002
Cr-Commit-Position: refs/heads/master@{#41296}

For a couple of those Array builtins we can specify a useful type that
will help us to eliminate a couple of checks on their outputs.

R=yangguo@chromium.org
BUG=v8:5267

Review-Url: https://codereview.chromium.org/2529233002
Cr-Commit-Position: refs/heads/master@{#41295}

Assign types to the remaining builtins on the String.prototype where we
know a meaningful type, i.e. where the type is not dependent on some
callable function that is pass or loaded.

BUG=v8:5267
R=yangguo@chromium.org

Review-Url: https://codereview.chromium.org/2532463002
Cr-Commit-Position: refs/heads/master@{#41294}

If code has AsmWasm data we shouldn't try to optimize the JS as well, since
it will instead be optimized using the WASM data.

BUG=

Review-Url: https://codereview.chromium.org/2534463003
Cr-Commit-Position: refs/heads/master@{#41293}

    Since the page size of PPC 64 bit machines is 64K, memory smaller than 64K
    cannot be freed causing the committed memory of code space to be
    exactly 2M. Changing the test case to accomodate this.

R=mlippautz@chromium.org, ulan@chromium.org, vogelheim@chromium.org
BUG=

Review-Url: https://codereview.chromium.org/2523293002
Cr-Commit-Position: refs/heads/master@{#41292}

- Adds vmov, vswp instructions for QwNeonRegisters.
- Refactors existing vswp implementation, moves non-Neon adaption to
MacroAssembler.
- Adds simd128 support to CodeGenerator AssembleMove, AssembleSwap.

LOG=N
BUG=v8:4124

Review-Url: https://codereview.chromium.org/2523933002
Cr-Commit-Position: refs/heads/master@{#41291}

Review-Url: https://codereview.chromium.org/2531873003
Cr-Commit-Position: refs/heads/master@{#41290}

BUG=

Review-Url: https://codereview.chromium.org/2529113002
Cr-Commit-Position: refs/heads/master@{#41289}

Trivial parts of the reverted CL:
  https://codereview.chromium.org/2516303006/

BUG=

Review-Url: https://codereview.chromium.org/2531093002
Cr-Commit-Position: refs/heads/master@{#41288}

Review-Url: https://codereview.chromium.org/2531073002
Cr-Commit-Position: refs/heads/master@{#41287}

TBR=machenbach@chromium.org

Review-Url: https://codereview.chromium.org/2533583002
Cr-Commit-Position: refs/heads/master@{#41286}

This adds microbenchmarks for:

* the RegExp constructor,
* flag accessors,
* and RegExp functions: exec, @@match, @@search, test, @@split, @@replace.

Each benchmark is further split to measure fast and slow paths.

BUG=v8:5339

Review-Url: https://codereview.chromium.org/2521263003
Cr-Commit-Position: refs/heads/master@{#41285}

Port 961a45da

BUG=

Review-Url: https://codereview.chromium.org/2505923002
Cr-Commit-Position: refs/heads/master@{#41284}

R=jgruber@chromium.org
BUG=v8:5510

Review-Url: https://codereview.chromium.org/2531543002
Cr-Commit-Position: refs/heads/master@{#41283}

This code is no longer used in full-codegen or ast-graph-builder since all
functions which have class literals go through Ignition first.

BUG=v8:5657

Review-Url: https://codereview.chromium.org/2534463002
Cr-Commit-Position: refs/heads/master@{#41282}

This removes lots of boilerplate typedefs, with the caveat of renaming
CSA::Label and Variable to CLabel and CVariable within builtins-regexp.

BUG=v8:5339

Review-Url: https://codereview.chromium.org/2524363002
Cr-Commit-Position: refs/heads/master@{#41281}

TBR=tebbi@chromium.org
BUG=chromium:668510

Review-Url: https://codereview.chromium.org/2526223003
Cr-Commit-Position: refs/heads/master@{#41280}

This removes support for try-catch as well as try-finally constructs
from the {FullCodeGenerator}. Consequently optimized code containing
such constructs must use the {BytecodeGraphBuilder} and can no longer
use the {AstGraphBuilder} for graph building.

R=jarin@chromium.org
BUG=v8:5657

Review-Url: https://codereview.chromium.org/2521233002
Cr-Commit-Position: refs/heads/master@{#41279}

Revert of [base] Pass scalar arguments by value in CHECK/DCHECK (patchset #3 id:40001 of https://codereview.chromium.org/2524093002/ )

Reason for revert:
Seems to cause compile errors on Android. Will investigate on Monday.

Original issue's description:
> [base] Pass scalar arguments by value in CHECK/DCHECK
>
> This not only potentially improves performance, but also avoids weird
> linker errors, like the one below, where I used Smi::kMinValue in a
> DCHECK_EQ.
>
> > [421/649] LINK ./mksnapshot
> > FAILED: mksnapshot
> > src/base/logging.h|178| error: undefined reference to
>   'v8::internal::Smi::kMinValue'
>
> R=bmeurer@chromium.org, ishell@chromium.org
>
> Committed: https://crrev.com/76723502528c5af003fdffc3520632ea2a13fef3
> Cr-Commit-Position: refs/heads/master@{#41273}

TBR=bmeurer@chromium.org,ishell@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/2527883004
Cr-Commit-Position: refs/heads/master@{#41278}

Revert of [base] Define CHECK comparison for signed vs. unsigned (patchset #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}

This code is no longer used by full-codegen since all functions which use with statments,
call eval or have lookup variable access now go through Ignition first.

BUG=v8:5657

Review-Url: https://codereview.chromium.org/2514393002
Cr-Commit-Position: refs/heads/master@{#41276}

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

Review-Url: https://codereview.chromium.org/2526783002
Cr-Commit-Position: refs/heads/master@{#41275}

If code is flushed on a SFI, we can still use the bytecode if it was compiled,
since this never gets flushed.

This fixes a DCHECK where we were trying to compile the bytecode multiple
times after the baseline code was flushed.

BUG=chromium:668133

Review-Url: https://codereview.chromium.org/2526243002
Cr-Commit-Position: refs/heads/master@{#41274}

This not only potentially improves performance, but also avoids weird
linker errors, like the one below, where I used Smi::kMinValue in a
DCHECK_EQ.

> [421/649] LINK ./mksnapshot
> FAILED: mksnapshot
> src/base/logging.h|178| error: undefined reference to
  'v8::internal::Smi::kMinValue'

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

Review-Url: https://codereview.chromium.org/2524093002
Cr-Commit-Position: refs/heads/master@{#41273}

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.

Original review: https://codereview.chromium.org/2504403005/

Review-Url: https://codereview.chromium.org/2528883003
Cr-Commit-Position: refs/heads/master@{#41272}

BUG=chromium:417697

Review-Url: https://codereview.chromium.org/2522223002
Cr-Commit-Position: refs/heads/master@{#41271}

BUG=

Review-Url: https://codereview.chromium.org/2523263003
Cr-Commit-Position: refs/heads/master@{#41270}

The conversion instr was being called twice and
the src register was not restored after the shift.

R=joransiu@ca.ibm.com, jyan@ca.ibm.com, michael_dawson@ca.ibm.com
BUG=
LOG=N

Review-Url: https://codereview.chromium.org/2527873003
Cr-Commit-Position: refs/heads/master@{#41269}

Make apply calls with double array arguments such as
Math.min.apply(Math, [1.1, 2.2]) 1.6x faster.

Drive-by-fix: pass in the isolate to ElementsAccessor::GetImpl.

BUG=v8:4826

Review-Url: https://codereview.chromium.org/2521043005
Cr-Commit-Position: refs/heads/master@{#41268}