[ic] Make prototypes fast when storing through keyed store ic.

[ic] Make prototypes fast when storing through keyed store IC.

Toon suggested this as a mitigation to the problem of prototype fast mode switching invalidating prototype chain validity cell, and thus sending keyed store ICs to megamorphic state.

BUG=chromium:723479
Review-Url: https://codereview.chromium.org/2943313002
Cr-Commit-Position: refs/heads/master@{#45993}
Committed: https://chromium.googlesource.com/v8/v8/+/d6c9e534c862a07b0d027c746273aede07ce41c5

[Jarin, 2017-06-19 08:18:02]

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

[commit-bot: I haz the power, 2017-06-19 08:18:04]

Dry run: CQ is trying da patch.

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

[Jarin, 2017-06-19 08:27:36]

Description was changed from

==========
[ic] Make prototypes fast when storing through keyed store ic.

BUG=chromium:723479
==========

to

==========
[ic] Make prototypes fast when storing through keyed store IC.

Toon suggested this as a mitigation to the problem of prototype fast mode
switching invalidating prototype chain validity cell, and thus sending keyed
store ICs to megamorphic state.

BUG=chromium:723479
==========

[Jarin, 2017-06-19 08:27:36]

jarin@chromium.org changed reviewers:
+ ishell@chromium.org

[Jarin, 2017-06-19 08:27:51]

Could you take a look, please?

[Igor Sheludko, 2017-06-19 08:32:33]

lgtm

[Jarin, 2017-06-19 08:54:26]

The CQ bit was unchecked by jarin@chromium.org

[Jarin, 2017-06-19 08:54:27]

The CQ bit was checked by jarin@chromium.org

[commit-bot: I haz the power, 2017-06-19 08:54:35]

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, 2017-06-19 10:17:31]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1497862467433800, "parent_rev":
"0d2ed6c3287ec48ee06ec1b69287ed4bf0dd60d7", "commit_rev":
"d6c9e534c862a07b0d027c746273aede07ce41c5"}

[commit-bot: I haz the power, 2017-06-19 10:17:38]

Description was changed from

==========
[ic] Make prototypes fast when storing through keyed store IC.

Toon suggested this as a mitigation to the problem of prototype fast mode
switching invalidating prototype chain validity cell, and thus sending keyed
store ICs to megamorphic state.

BUG=chromium:723479
==========

to

==========
[ic] Make prototypes fast when storing through keyed store IC.

Toon suggested this as a mitigation to the problem of prototype fast mode
switching invalidating prototype chain validity cell, and thus sending keyed
store ICs to megamorphic state.

BUG=chromium:723479

Review-Url: https://codereview.chromium.org/2943313002
Cr-Commit-Position: refs/heads/master@{#45993}
Committed:
https://chromium.googlesource.com/v8/v8/+/d6c9e534c862a07b0d027c746273aede07c...
==========

[commit-bot: I haz the power, 2017-06-19 10:17:39]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/v8/v8/+/d6c9e534c862a07b0d027c746273aede07c...