Built-in apply() performance benefits from an uninitialized IC.

Built-in apply() performance benefits from an uninitialized IC.

BUG=

Committed: https://crrev.com/2a3b05758721a2f63a7c611ef22e364ead9ed0f3
Cr-Commit-Position: refs/heads/master@{#29175}

[mvstanton, 2015-06-11 17:31:09]

Patchset #2 (id:20001) has been deleted

[mvstanton, 2015-06-11 19:58:43]

mvstanton@chromium.org changed reviewers:
+ verwaest@chromium.org

[mvstanton, 2015-06-11 19:58:43]

Hi Toon,
I think you reviewed my first crack at this, where I installed the generic keyed
load ic. Weiliang has some benchmarks where a monomorphic double array is used,
and it benefits greatly if we use a completely working IC. Can you have a look?

BTW - I think there maybe one important issue. Context disposal should clear
this "type feedback vector." I'm thinking to add it as a root to the heap, and
clear it on any/every context disposal. Let me know if that sounds right.
--Michael

[Toon Verwaest, 2015-06-18 09:44:43]

lgtm

[Toon Verwaest, 2015-06-18 09:45:21]

Lets discuss the context disposal thing later. I'm not sure it's that relevant
...

[mvstanton, 2015-06-22 06:42:30]

The CQ bit was checked by mvstanton@chromium.org

[mvstanton, 2015-06-22 06:42:31]

The patchset sent to the CQ was uploaded after l-g-t-m from
verwaest@chromium.org
Link to the patchset: https://codereview.chromium.org/1180713007/#ps60001
(title: "REBASE.")

[commit-bot: I haz the power, 2015-06-22 06:42:38]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1180713007/60001

[commit-bot: I haz the power, 2015-06-22 07:05:20]

Committed patchset #3 (id:60001)

[commit-bot: I haz the power, 2015-06-22 07:05:30]

Patchset 3 (id:??) landed as
https://crrev.com/2a3b05758721a2f63a7c611ef22e364ead9ed0f3
Cr-Commit-Position: refs/heads/master@{#29175}