[turbofan] Decouple OSR entry from {OsrPoll} bytecode.

[turbofan] Decouple OSR entry from {OsrPoll} bytecode.

This makes sure OSR entry points can be added without having special
{OsrPoll} instructions in the bytecode stream. Eventually we might end
up merging back-branches and OSR polls together. Any loop header can be
used as an OSR entry point.

R=bmeurer@chromium.org
BUG=v8:4764
Committed: https://crrev.com/069fcf4cbb6247151c7974ed8e38c1ff1c6e3db4
Cr-Commit-Position: refs/heads/master@{#39373}

[Michael Starzinger, 2016-09-12 13:22:06]

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

[commit-bot: I haz the power, 2016-09-12 13:22:12]

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, 2016-09-12 13:51:35]

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

[commit-bot: I haz the power, 2016-09-12 13:51:36]

Dry run: This issue passed the CQ dry run.

[Michael Starzinger, 2016-09-12 16:30:52]

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

[Michael Starzinger, 2016-09-12 16:30:52]

Benedikt: PTAL.
Ross: FYI.

[Michael Starzinger, 2016-09-12 16:44:26]

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

[commit-bot: I haz the power, 2016-09-12 16:44:34]

Dry run: CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[Benedikt Meurer, 2016-09-12 16:58:44]

Nice. LGTM.

[commit-bot: I haz the power, 2016-09-12 17:09:21]

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

[commit-bot: I haz the power, 2016-09-12 17:09:22]

Dry run: This issue passed the CQ dry run.

[Michael Starzinger, 2016-09-13 08:39:38]

The CQ bit was checked by mstarzinger@chromium.org

[commit-bot: I haz the power, 2016-09-13 08:39:41]

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, 2016-09-13 08:41:58]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2016-09-13 08:42:11]

Description was changed from

==========
[turbofan] Decouple OSR entry from {OsrPoll} bytecode.

This makes sure OSR entry points can be added without having special
{OsrPoll} instructions in the bytecode stream. Eventually we might end
up merging back-branches and OSR polls together. Any loop header can be
used as an OSR entry point.

R=bmeurer@chromium.org
BUG=v8:4764
==========

to

==========
[turbofan] Decouple OSR entry from {OsrPoll} bytecode.

This makes sure OSR entry points can be added without having special
{OsrPoll} instructions in the bytecode stream. Eventually we might end
up merging back-branches and OSR polls together. Any loop header can be
used as an OSR entry point.

R=bmeurer@chromium.org
BUG=v8:4764

Committed: https://crrev.com/069fcf4cbb6247151c7974ed8e38c1ff1c6e3db4
Cr-Commit-Position: refs/heads/master@{#39373}
==========

[commit-bot: I haz the power, 2016-09-13 08:42:12]

Patchset 2 (id:??) landed as
https://crrev.com/069fcf4cbb6247151c7974ed8e38c1ff1c6e3db4
Cr-Commit-Position: refs/heads/master@{#39373}