[turbofan] Remove escape analysis stats counters.

[turbofan] Remove escape analysis stats counters.

These counters were used during the initial implementation to gather
statistics about comparative effectiveness of the two escape analysis
approaches in practice. The counters are not thread-safe and cannot be
used for the analysis any longer as it is now running off main thread.
We deprecate the counters in question in favor of maintaining deferred
statistics until the need for such statistics arises again.

R=bmeurer@chromium.org
BUG=chromium:685942
Review-Url: https://codereview.chromium.org/2667453003
Cr-Commit-Position: refs/heads/master@{#42808}
Committed: https://chromium.googlesource.com/v8/v8/+/418c9eca799530ab19b9dd2d0eb24278669945b7

[Michael Starzinger, 2017-01-30 14:58:59]

Description was changed from

==========
[turbofan] Remove escape analysis stats counters.

These counters were used during the initial implementation to gather
statistics about comparative effectiveness of the two escape analysis
approaches in pratice. The counters are not thread-safe and cannot be
used for the analysis any longer as it is now running off main thread.
We deprecate the counters in question in favor of maintaining defered
statistics until the need for such statistics arrises again.

R=bmeurer@chromium.org
BUG=chromium:685942
==========

to

==========
[turbofan] Remove escape analysis stats counters.

These counters were used during the initial implementation to gather
statistics about comparative effectiveness of the two escape analysis
approaches in practice. The counters are not thread-safe and cannot be
used for the analysis any longer as it is now running off main thread.
We deprecate the counters in question in favor of maintaining deferred
statistics until the need for such statistics arises again.

R=bmeurer@chromium.org
BUG=chromium:685942
==========

[Michael Starzinger, 2017-01-30 14:59:15]

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

[commit-bot: I haz the power, 2017-01-30 14:59:22]

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, 2017-01-30 15:31:58]

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

[commit-bot: I haz the power, 2017-01-30 15:31:59]

Dry run: This issue passed the CQ dry run.

[Benedikt Meurer, 2017-01-30 17:37:45]

lgtm

[Michael Starzinger, 2017-01-31 08:50:10]

The CQ bit was checked by mstarzinger@chromium.org

[commit-bot: I haz the power, 2017-01-31 08:50:20]

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, 2017-01-31 08:52:20]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1485852610252260, "parent_rev":
"8bc60063ef596b27cfb60be40370d4d94ed97392", "commit_rev":
"418c9eca799530ab19b9dd2d0eb24278669945b7"}

[commit-bot: I haz the power, 2017-01-31 08:52:29]

Description was changed from

==========
[turbofan] Remove escape analysis stats counters.

These counters were used during the initial implementation to gather
statistics about comparative effectiveness of the two escape analysis
approaches in practice. The counters are not thread-safe and cannot be
used for the analysis any longer as it is now running off main thread.
We deprecate the counters in question in favor of maintaining deferred
statistics until the need for such statistics arises again.

R=bmeurer@chromium.org
BUG=chromium:685942
==========

to

==========
[turbofan] Remove escape analysis stats counters.

These counters were used during the initial implementation to gather
statistics about comparative effectiveness of the two escape analysis
approaches in practice. The counters are not thread-safe and cannot be
used for the analysis any longer as it is now running off main thread.
We deprecate the counters in question in favor of maintaining deferred
statistics until the need for such statistics arises again.

R=bmeurer@chromium.org
BUG=chromium:685942

Review-Url: https://codereview.chromium.org/2667453003
Cr-Commit-Position: refs/heads/master@{#42808}
Committed:
https://chromium.googlesource.com/v8/v8/+/418c9eca799530ab19b9dd2d0eb24278669...
==========

[commit-bot: I haz the power, 2017-01-31 08:52:30]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/v8/v8/+/418c9eca799530ab19b9dd2d0eb24278669...