[turbofan] Pick remembered set action for write barrier.

[turbofan] Pick remembered set action for write barrier.

This picks the record-write stub depending on the correct remembered set
action parameter. For values known to be maps we can guarantee that they
never reside in new-space, hence store buffer recording can be skipped.

R=bmeurer@chromium.org

Committed: https://crrev.com/119a23e113b2d622044eb447c2255e543be58897
Cr-Commit-Position: refs/heads/master@{#34191}

[Michael Starzinger, 2016-02-22 13:03:42]

mstarzinger@chromium.org changed reviewers:
+ ulan@chromium.org

[Michael Starzinger, 2016-02-22 13:03:43]

Benedikt: PTAL at the implementation.
Ulan: Please verify my argumentation about GC semantics.

[Benedikt Meurer, 2016-02-22 13:16:38]

LGTM!

[ulan, 2016-02-22 13:17:07]

lgtm, the gc argumentation is correct.

[Michael Starzinger, 2016-02-22 13:19:33]

The CQ bit was checked by mstarzinger@chromium.org

[commit-bot: I haz the power, 2016-02-22 13:19:44]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1716163003/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1716163003/1

[commit-bot: I haz the power, 2016-02-22 13:22:20]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-02-22 13:23:36]

Description was changed from

==========
[turbofan] Pick remembered set action for write barrier.

This picks the record-write stub depending on the correct remembered set
action parameter. For values known to be maps we can guarantee that they
never reside in new-space, hence store buffer recording can be skipped.

R=bmeurer@chromium.org
==========

to

==========
[turbofan] Pick remembered set action for write barrier.

This picks the record-write stub depending on the correct remembered set
action parameter. For values known to be maps we can guarantee that they
never reside in new-space, hence store buffer recording can be skipped.

R=bmeurer@chromium.org

Committed: https://crrev.com/119a23e113b2d622044eb447c2255e543be58897
Cr-Commit-Position: refs/heads/master@{#34191}
==========

[commit-bot: I haz the power, 2016-02-22 13:23:37]

Patchset 1 (id:??) landed as
https://crrev.com/119a23e113b2d622044eb447c2255e543be58897
Cr-Commit-Position: refs/heads/master@{#34191}