[regexp] Port RegExpConstructResultStub to TurboFan

[regexp] Port RegExpConstructResultStub to TurboFan

The old hydrogen stub (and runtime fallback) are still needed while they are
used in regexp.js.  These will go away once affected code has been ported.

Drive-by-fix: Fixed typo in GetFixedA{a,}rrayAllocationSize.

BUG=v8:5339
Committed: https://crrev.com/22881b41d9e4a13990ee660d4afbf9b8cb58e849
Cr-Commit-Position: refs/heads/master@{#39952}

[jgruber, 2016-09-29 13:34:46]

The CQ bit was checked by jgruber@chromium.org to run a CQ dry run

[commit-bot: I haz the power, 2016-09-29 13:34:51]

Dry run: CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2016-09-29 13:38:21]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2016-09-29 13:38:22]

Dry run: Try jobs failed on following builders:
  v8_mac_rel_ng on master.tryserver.v8 (JOB_FAILED,
http://build.chromium.org/p/tryserver.v8/builders/v8_mac_rel_ng/builds/9914)

[jgruber, 2016-09-30 07:33:08]

The CQ bit was checked by jgruber@chromium.org to run a CQ dry run

[commit-bot: I haz the power, 2016-09-30 07:33:14]

Dry run: CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[jgruber, 2016-09-30 07:47:31]

The CQ bit was checked by jgruber@chromium.org to run a CQ dry run

[commit-bot: I haz the power, 2016-09-30 07:47:35]

Dry run: CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[jgruber, 2016-09-30 08:00:47]

jgruber@chromium.org changed reviewers:
+ bmeurer@chromium.org, ishell@chromium.org

[jgruber, 2016-09-30 08:00:47]

Local runs of my modified exec-only octane/regexp benchmark show roughly 10%
improvement on this. Let's see what perfbots say.

[commit-bot: I haz the power, 2016-09-30 08:14:14]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2016-09-30 08:14:15]

Dry run: This issue passed the CQ dry run.

[jgruber, 2016-09-30 08:20:07]

Description was changed from

==========
[regexp] Port RegExpConstructResultStub to TurboFan

The old hydrogen stub (and runtime fallback) are still needed while they are
used in regexp.js.  These will go away once affected code has been ported.

BUG=v8:5339
==========

to

==========
[regexp] Port RegExpConstructResultStub to TurboFan

The old hydrogen stub (and runtime fallback) are still needed while they are
used in regexp.js.  These will go away once affected code has been ported.

Drive-by-fix: Fixed typo in GetFixedA{a,}rrayAllocationSize.

BUG=v8:5339
==========

[jgruber, 2016-09-30 08:29:16]

On 2016/09/30 08:00:47, jgruber wrote:
> Local runs of my modified exec-only octane/regexp benchmark show roughly 10%
> improvement on this. Let's see what perfbots say.

Seems like the improvement disappears on perfbots / with an unmodified regexp
benchmark. 
That's unfortunate..

Apparently replace (+ match and split to a smaller extent) accounts for more
than 60% of octane/regexp.

[Benedikt Meurer, 2016-09-30 08:29:24]

lgtm

[jgruber, 2016-10-04 11:30:05]

The CQ bit was checked by jgruber@chromium.org

[commit-bot: I haz the power, 2016-10-04 11:30:10]

CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2016-10-04 11:31:51]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2016-10-04 11:31:52]

Try jobs failed on following builders:
  v8_linux64_gyp_rel_ng on master.tryserver.v8 (JOB_FAILED,
http://build.chromium.org/p/tryserver.v8/builders/v8_linux64_gyp_rel_ng/build...)
  v8_linux_dbg_ng on master.tryserver.v8 (JOB_FAILED,
http://build.chromium.org/p/tryserver.v8/builders/v8_linux_dbg_ng/builds/13896)
  v8_linux_gcc_compile_rel on master.tryserver.v8 (JOB_FAILED,
http://build.chromium.org/p/tryserver.v8/builders/v8_linux_gcc_compile_rel/bu...)

[jgruber, 2016-10-04 11:39:34]

The CQ bit was checked by jgruber@chromium.org

[jgruber, 2016-10-04 11:39:35]

The patchset sent to the CQ was uploaded after l-g-t-m from bmeurer@chromium.org
Link to the patchset: https://codereview.chromium.org/2384473002/#ps80001
(title: "Adapt to new constant accessor style")

[commit-bot: I haz the power, 2016-10-04 11:39:41]

CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2016-10-04 12:06:42]

Description was changed from

==========
[regexp] Port RegExpConstructResultStub to TurboFan

The old hydrogen stub (and runtime fallback) are still needed while they are
used in regexp.js.  These will go away once affected code has been ported.

Drive-by-fix: Fixed typo in GetFixedA{a,}rrayAllocationSize.

BUG=v8:5339
==========

to

==========
[regexp] Port RegExpConstructResultStub to TurboFan

The old hydrogen stub (and runtime fallback) are still needed while they are
used in regexp.js.  These will go away once affected code has been ported.

Drive-by-fix: Fixed typo in GetFixedA{a,}rrayAllocationSize.

BUG=v8:5339
==========

[commit-bot: I haz the power, 2016-10-04 12:06:42]

Committed patchset #5 (id:80001)

[commit-bot: I haz the power, 2016-10-04 12:06:56]

Description was changed from

==========
[regexp] Port RegExpConstructResultStub to TurboFan

The old hydrogen stub (and runtime fallback) are still needed while they are
used in regexp.js.  These will go away once affected code has been ported.

Drive-by-fix: Fixed typo in GetFixedA{a,}rrayAllocationSize.

BUG=v8:5339
==========

to

==========
[regexp] Port RegExpConstructResultStub to TurboFan

The old hydrogen stub (and runtime fallback) are still needed while they are
used in regexp.js.  These will go away once affected code has been ported.

Drive-by-fix: Fixed typo in GetFixedA{a,}rrayAllocationSize.

BUG=v8:5339

Committed: https://crrev.com/22881b41d9e4a13990ee660d4afbf9b8cb58e849
Cr-Commit-Position: refs/heads/master@{#39952}
==========

[commit-bot: I haz the power, 2016-10-04 12:06:57]

Patchset 5 (id:??) landed as
https://crrev.com/22881b41d9e4a13990ee660d4afbf9b8cb58e849
Cr-Commit-Position: refs/heads/master@{#39952}