[csa] More conservative propagation of flag marking blocks needing frames

[csa] More conservative propagation of flag marking blocks needing frames

Specifically, don't propage "needs_frame" up through non-deferred -> deferred
block transitions where there are multiple edges from the non-deferred to
deferred code.

LOG=N
R=epertoso@chromium.org

Review-Url: https://codereview.chromium.org/2606893002
Cr-Commit-Position: refs/heads/master@{#41972}
Committed: https://chromium.googlesource.com/v8/v8/+/505cfdd84d3e6f9859c2dd51fa8e27611164e4d3

[danno, 2016-12-28 13:34:41]

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

[commit-bot: I haz the power, 2016-12-28 13:34:50]

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, 2016-12-28 13:59:20]

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

[commit-bot: I haz the power, 2016-12-28 13:59:20]

Dry run: This issue passed the CQ dry run.

[epertoso, 2016-12-28 14:00:11]

lgtm

[danno, 2016-12-28 14:15:52]

The CQ bit was checked by danno@chromium.org

[commit-bot: I haz the power, 2016-12-28 14:16:01]

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, 2016-12-28 14:17:37]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1482934552224860, "parent_rev":
"be11812c53ff6c8ce320887bc76a3b60d8103695", "commit_rev":
"505cfdd84d3e6f9859c2dd51fa8e27611164e4d3"}

[commit-bot: I haz the power, 2016-12-28 14:17:41]

Description was changed from

==========
[csa] More conservative propagation of flag marking blocks needing frames

Specifically, don't propage "needs_frame" up through non-deferred -> deferred
block transitions where there are multiple edges from the non-deferred to
deferred code.

LOG=N
R=epertoso@chromium.org
==========

to

==========
[csa] More conservative propagation of flag marking blocks needing frames

Specifically, don't propage "needs_frame" up through non-deferred -> deferred
block transitions where there are multiple edges from the non-deferred to
deferred code.

LOG=N
R=epertoso@chromium.org

Review-Url: https://codereview.chromium.org/2606893002
Cr-Commit-Position: refs/heads/master@{#41972}
Committed:
https://chromium.googlesource.com/v8/v8/+/505cfdd84d3e6f9859c2dd51fa8e2761116...
==========

[commit-bot: I haz the power, 2016-12-28 14:17:42]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/v8/v8/+/505cfdd84d3e6f9859c2dd51fa8e2761116...