[turbofan] Run load elimination prior to escape analysis.

[turbofan] Run load elimination prior to escape analysis.

Once the escape analysis ran, it'll be harder to eliminate a bunch of
checks (for example map checks, which would currently block escape
analysis, but that's about to be fixed). Also the escape analysis will
have a lot less stress after the load elimination, which takes care of
redundant loads and checks already.

R=mstarzinger@chromium.org
BUG=v8:5448
Committed: https://crrev.com/201e53fbe94c4c66f02db5db524d1e7e5ce01740
Cr-Commit-Position: refs/heads/master@{#40351}

[Benedikt Meurer, 2016-10-17 09:22:09]

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

[commit-bot: I haz the power, 2016-10-17 09:22:17]

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

[Benedikt Meurer, 2016-10-17 09:25:22]

Hey Michi,

As discussed offline, here's the change to run load elimination first.
Please take a look.

Thanks,
Benedikt

[commit-bot: I haz the power, 2016-10-17 09:49:38]

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

[commit-bot: I haz the power, 2016-10-17 09:49:39]

Dry run: This issue passed the CQ dry run.

[Michael Starzinger, 2016-10-17 09:53:30]

LGTM.

[Benedikt Meurer, 2016-10-17 10:07:49]

The CQ bit was checked by bmeurer@chromium.org

[commit-bot: I haz the power, 2016-10-17 10:07:54]

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, 2016-10-17 10:13:36]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-10-17 10:13:45]

Description was changed from

==========
[turbofan] Run load elimination prior to escape analysis.

Once the escape analysis ran, it'll be harder to eliminate a bunch of
checks (for example map checks, which would currently block escape
analysis, but that's about to be fixed). Also the escape analysis will
have a lot less stress after the load elimination, which takes care of
redundant loads and checks already.

R=mstarzinger@chromium.org
BUG=v8:5448
==========

to

==========
[turbofan] Run load elimination prior to escape analysis.

Once the escape analysis ran, it'll be harder to eliminate a bunch of
checks (for example map checks, which would currently block escape
analysis, but that's about to be fixed). Also the escape analysis will
have a lot less stress after the load elimination, which takes care of
redundant loads and checks already.

R=mstarzinger@chromium.org
BUG=v8:5448

Committed: https://crrev.com/201e53fbe94c4c66f02db5db524d1e7e5ce01740
Cr-Commit-Position: refs/heads/master@{#40351}
==========

[commit-bot: I haz the power, 2016-10-17 10:13:45]

Patchset 1 (id:??) landed as
https://crrev.com/201e53fbe94c4c66f02db5db524d1e7e5ce01740
Cr-Commit-Position: refs/heads/master@{#40351}