Port c343f309

Original commit message:
    This operator now provides a second output which indicates whether the
    conversion from float64 to uint64 was successful or not. The second output
    returns 0 if the conversion fails, or something else if the conversion
    succeeds.

    The second output can be ignored, which means that the operator can be used
    the same as the original operator.

R=ahaas@chromium.org, joransiu@ca.ibm.com, jyan@ca.ibm.com, michael_dawson@ca.ibm.com
BUG=

Review URL: https://codereview.chromium.org/1512963002

Cr-Commit-Position: refs/heads/master@{#32728}

Port 7a22fdff

Original commit message:
    This only introduces the basic support for both SOFT and EAGER deopts in
    TurboFan, but doesn't make use of SOFT deopts anywhere yet (there are
    some other issues blocking that). Basically every Deoptimize operator
    now has a DeoptimizeKind, which can be either kSoft or kEager.

R=bmeurer@chromium.org, joransiu@ca.ibm.com, jyan@ca.ibm.com, michael_dawson@ca.ibm.com
BUG=

Review URL: https://codereview.chromium.org/1518483002

Cr-Commit-Position: refs/heads/master@{#32727}

R=cbruni@chromium.org, joransiu@ca.ibm.com, jyan@ca.ibm.com, michael_dawson@ca.ibm.com
LOG=N
BUG=v8:1543

Review URL: https://codereview.chromium.org/1510283002

Cr-Commit-Position: refs/heads/master@{#32726}

Port 2b63d6b0

Original commit message:
    It's cumbersome to maintain IC profiler statistics all the time.
    Let's just do it as needed.

R=mvstanton@chromium.org, joransiu@ca.ibm.com, jyan@ca.ibm.com, michael_dawson@ca.ibm.com
BUG=

Review URL: https://codereview.chromium.org/1510273002

Cr-Commit-Position: refs/heads/master@{#32725}

Port 95844d94

Original commit message:
    The new operator provides a second output which indicates whether the
    conversion from float64 to int64 was successful or not. The second
    output returns 0 if the conversion fails. If the conversion succeeds,
    then the second output is differs from 0.

    The second output can be ignored, which means that the operator can be
    used the same way as the original operator.

R=ahaas@chromium.org, joransiu@ca.ibm.com, jyan@ca.ibm.com, michael_dawson@ca.ibm.com
BUG=

Review URL: https://codereview.chromium.org/1515603002

Cr-Commit-Position: refs/heads/master@{#32724}

In particular, return Maybe<bool> from any function that can throw, and
use MAYBE_RETURN and RETURN_FAILURE macros consistently where applicable.

No change in behavior intended.

Review URL: https://codereview.chromium.org/1513713002

Cr-Commit-Position: refs/heads/master@{#32723}

BUG=

Review URL: https://codereview.chromium.org/1510833003

Cr-Commit-Position: refs/heads/master@{#32722}

BUG=

Review URL: https://codereview.chromium.org/1502153007

Cr-Commit-Position: refs/heads/master@{#32721}

Make Error.prototype.toString spec compliant; and fix various side-effect-free error printing methods

R=yangguo@chromium.org
LOG=n

Committed: https://crrev.com/5dffa35350d0f57402806e6bd87a914e1d5933e4
Cr-Commit-Position: refs/heads/master@{#32695}

Review URL: https://codereview.chromium.org/1507273002

Cr-Commit-Position: refs/heads/master@{#32720}

Can be replaced by KeyAccumulator + CollectOwnPropertyNames().

Review URL: https://codereview.chromium.org/1515473003

Cr-Commit-Position: refs/heads/master@{#32719}

LOG=N
BUG=v8:1543

Review URL: https://codereview.chromium.org/1509603005

Cr-Commit-Position: refs/heads/master@{#32718}

Compaction of the array with maps happens lazily upon adding new maps.

BUG=

Review URL: https://codereview.chromium.org/1481953002

Cr-Commit-Position: refs/heads/master@{#32717}

TEST=cctest/test-run-machops/RunInt32DivP
BUG=

Review URL: https://codereview.chromium.org/1511223002

Cr-Commit-Position: refs/heads/master@{#32716}

Fully scheduled graphs built by the RawMachineAssembler are inherently
not schedulable, they are missing effect and control dependencies, which
makes them not pass the graph verifier either. They do however pass the
schedule verifier.

R=titzer@chromium.org

Review URL: https://codereview.chromium.org/1505233003

Cr-Commit-Position: refs/heads/master@{#32715}

- Except 2x applications of ForceSet, where I still need to debug
  why the expected replacement doesn't work as expected.
- Ca. 3/4 of the file is covered.

R=jochen@chromium.org
BUG=

Review URL: https://codereview.chromium.org/1516483002

Cr-Commit-Position: refs/heads/master@{#32714}

This is a simplified copy of JSObject::GetOwnElementKeys and will make it possible to eliminate the latter.

Review URL: https://codereview.chromium.org/1510083003

Cr-Commit-Position: refs/heads/master@{#32713}

R=hpayer@chromium.org
BUG=chromium:524425
LOG=N

Review URL: https://codereview.chromium.org/1504773002

Cr-Commit-Position: refs/heads/master@{#32712}

Creating a with context cannot lazy/eager deoptimize, so we don't need
to pass a frame state.

R=jarin@chromium.org

Review URL: https://codereview.chromium.org/1508373002

Cr-Commit-Position: refs/heads/master@{#32711}

Adds implementation and tests for CreateObjectLiteral, CreateArrayLiteral and CreateRegExpLiteral
to bytecode graph builder. Also changes these bytecodes to expect three operands instead of using
accumulator to pass one of the operands. This is done to avoid looking into the earlier nodes to
fetch operands in the bytecode graph builder. Also adds support for wide variant of these
bytecodes to bytecode generator and bytecode graph builder.

BUG=v8:4280
LOG=N

Review URL: https://codereview.chromium.org/1503963002

Cr-Commit-Position: refs/heads/master@{#32710}

R=jarin@chromium.org

Review URL: https://codereview.chromium.org/1515513002

Cr-Commit-Position: refs/heads/master@{#32709}

NOTRY=true

R=verwaest@chromium.org

Review URL: https://codereview.chromium.org/1516433002

Cr-Commit-Position: refs/heads/master@{#32708}

ToBoolean was used with conditional jumps. An earlier cl
(https://codereview.chromium.org/1426913002/) merges jumps
and ToBoolean into a single bytecode. So, we no longer need
ToBoolean bytecode.

BUG=v8:4280
LOG=N

Review URL: https://codereview.chromium.org/1507683005

Cr-Commit-Position: refs/heads/master@{#32707}

* Move most heap related tests into heap/ subdir
* IWYU for heap utility functions

R=ulan@chromium.org
BUG=

Review URL: https://codereview.chromium.org/1512553002

Cr-Commit-Position: refs/heads/master@{#32706}

This operator now provides a second output which indicates whether the conversion from float64 to uint64 was successful or not. The second output returns 0 if the conversion fails, or something else if the conversion succeeds.

The second output can be ignored, which means that the operator can be used the same as the original operator.

I implement the new operator on x64 and arm64. @v8-mips-ports and @v8-ppc-ports, can you please take care of the mips64 and ppc64 implementation of the second output?

R=titzer@chromium.org, v8-arm-ports@googlegroups.com

Review URL: https://codereview.chromium.org/1507703002

Cr-Commit-Position: refs/heads/master@{#32705}

The new minorGC pass collects all unmodified objects that are not marked
active by blink. The earlier implementation assumed all new space nodes
to be Heap objects. Updated this code to handle Smi objects as well.

BUG=553287
LOG=Y

Review URL: https://codereview.chromium.org/1491203002

Cr-Commit-Position: refs/heads/master@{#32704}

NOTREECHECKS=true
NOTRY=true
NOPRESUBMIT=true
TBR=verwaest@chromium.org

Review URL: https://codereview.chromium.org/1510193002

Cr-Commit-Position: refs/heads/master@{#32703}

[Interpreter] Fixes PreviousBytecodeHelper to check if previous bytecode is in the same basic block.

PreviousBytecodeHelper used to return Bytecode::kLast if the previous bytecode was not
in the same basicblock. Changed it to be instantiated only when the previous bytecode
is in the same basic block.

BUG=v8:4280
LOG=N

Review URL: https://codereview.chromium.org/1510553002

Cr-Commit-Position: refs/heads/master@{#32702}

Embedders still can use those APIs by default

test-api.cc still has an exception to use the old APIs...

BUG=v8:4143
R=vogelheim@chromium.org
LOG=n

Review URL: https://codereview.chromium.org/1505803004

Cr-Commit-Position: refs/heads/master@{#32701}

Revert of Make Error.prototype.toString spec compliant; and fix various side-effect-free error printing metho… (patchset #2 id:20001 of https://codereview.chromium.org/1507273002/ )

Reason for revert:
[Sheriff] Breaks layout tests. Please rebase upstream first:
https://build.chromium.org/p/client.v8.fyi/builders/V8-Blink%20Linux%2064/builds/3334

Original issue's description:
> Make Error.prototype.toString spec compliant; and fix various side-effect-free error printing methods
>
> R=yangguo@chromium.org
> LOG=n
>
> Committed: https://crrev.com/5dffa35350d0f57402806e6bd87a914e1d5933e4
> Cr-Commit-Position: refs/heads/master@{#32695}

TBR=yangguo@chromium.org,bmeurer@chromium.org,verwaest@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true

Review URL: https://codereview.chromium.org/1510173002

Cr-Commit-Position: refs/heads/master@{#32700}

JSProxy::HasProperty was missing an early "return Nothing<bool>".
KeyAccumulator's FilterProxyKeys() didn't handle SKIP_STRINGS correctly.

BUG=v8:1543
LOG=n
R=cbruni@chromium.org

Review URL: https://codereview.chromium.org/1505253002

Cr-Commit-Position: refs/heads/master@{#32699}

Review URL: https://codereview.chromium.org/1506683004

Cr-Commit-Position: refs/heads/master@{#32698}

  port 2b63d6b0 (r32693)

  original commit message:
  It's cumbersome to maintain IC profiler statistics all the time.
  Let's just do it as needed.

BUG=

Review URL: https://codereview.chromium.org/1511903002

Cr-Commit-Position: refs/heads/master@{#32697}

It's expensive to walk all shared function infos during the gc atomic
pause. Instead, use WeakCells to implement this structure without
manual clearing.

Reland due to a bug when reusing entries in the optimized code map.

BUG=

Review URL: https://codereview.chromium.org/1508703002

Cr-Commit-Position: refs/heads/master@{#32696}

Make Error.prototype.toString spec compliant; and fix various side-effect-free error printing methods

R=yangguo@chromium.org
LOG=n

Review URL: https://codereview.chromium.org/1507273002

Cr-Commit-Position: refs/heads/master@{#32695}

  port 7a22fdff(r32690)

  original commit message:
  This only introduces the basic support for both SOFT and EAGER deopts in
  TurboFan, but doesn't make use of SOFT deopts anywhere yet (there are
  some other issues blocking that). Basically every Deoptimize operator
  now has a DeoptimizeKind, which can be either kSoft or kEager.

BUG=

Review URL: https://codereview.chromium.org/1508323002

Cr-Commit-Position: refs/heads/master@{#32694}

It's cumbersome to maintain IC profiler statistics all the time.
Let's just do it as needed.

BUG=

Review URL: https://codereview.chromium.org/1507903004

Cr-Commit-Position: refs/heads/master@{#32693}

BUG=v8:3900, v8:3931, v8:1543, v8:3330, v8:4002
LOG=n

Review URL: https://codereview.chromium.org/1496333002

Cr-Commit-Position: refs/heads/master@{#32692}

Revert of [CQ] Temporarily switch off pure swarming bots. (patchset #1 id:1 of https://codereview.chromium.org/1502143005/ )

Reason for revert:
Switched swarming back on.

Original issue's description:
> [CQ] Temporarily switch off pure swarming bots.
>
> NOTRY=true
> NOTREECHECKS=true
> NOPRESUBMIT=true
>
> Committed: https://crrev.com/cd96d74124d9c4f4c713fd17205becf30d510edb
> Cr-Commit-Position: refs/heads/master@{#32674}

TBR=tandrii@chromium.org,jochen@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true

Review URL: https://codereview.chromium.org/1511123002

Cr-Commit-Position: refs/heads/master@{#32691}

This only introduces the basic support for both SOFT and EAGER deopts in
TurboFan, but doesn't make use of SOFT deopts anywhere yet (there are
some other issues blocking that). Basically every Deoptimize operator
now has a DeoptimizeKind, which can be either kSoft or kEager.

R=jarin@chromium.org

Review URL: https://codereview.chromium.org/1511883002

Cr-Commit-Position: refs/heads/master@{#32690}

R=littledan@chromium.org
BUG=v8:4342
LOG=N

Review URL: https://codereview.chromium.org/1506173002

Cr-Commit-Position: refs/heads/master@{#32689}