[turbofan] Don't need any write barrier when storing maps from the root set.

[turbofan] Don't need any write barrier when storing maps from the root set.

Maps that are immortal immovable (i.e. the one pointer filler map) don't
need write barriers.

R=jarin@chromium.org

Committed: https://crrev.com/e93f06ad877abe9c109b9c158a9c1bac73be536f
Cr-Commit-Position: refs/heads/master@{#36016}

[Benedikt Meurer, 2016-05-04 11:17:23]

Hey Jaro,

Quick fix.
Please take a look.

Thanks,
Benedikt

[Jarin, 2016-05-04 11:19:47]

lgtm

[Benedikt Meurer, 2016-05-04 11:19:57]

The CQ bit was checked by bmeurer@chromium.org

[commit-bot: I haz the power, 2016-05-04 11:20:01]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1945023003/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1945023003/1

[commit-bot: I haz the power, 2016-05-04 11:41:05]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-05-04 11:43:13]

Description was changed from

==========
[turbofan] Don't need any write barrier when storing maps from the root set.

Maps that are immortal immovable (i.e. the one pointer filler map) don't
need write barriers.

R=jarin@chromium.org
==========

to

==========
[turbofan] Don't need any write barrier when storing maps from the root set.

Maps that are immortal immovable (i.e. the one pointer filler map) don't
need write barriers.

R=jarin@chromium.org

Committed: https://crrev.com/e93f06ad877abe9c109b9c158a9c1bac73be536f
Cr-Commit-Position: refs/heads/master@{#36016}
==========

[commit-bot: I haz the power, 2016-05-04 11:43:14]

Patchset 1 (id:??) landed as
https://crrev.com/e93f06ad877abe9c109b9c158a9c1bac73be536f
Cr-Commit-Position: refs/heads/master@{#36016}