[turbofan] Also run the CheckpointElimination as part of load elimination.

[turbofan] Also run the CheckpointElimination as part of load elimination.

The LoadElimination (and potentially earlier passes too) might have
removed or lowered side-effecting operations, which allows for further
combining of check points in the graph, removing unnecessary StateValue
uses for the later truncation analysis.

BUG=chromium:709398
R=jarin@chromium.org

Review-Url: https://codereview.chromium.org/2807563002
Cr-Commit-Position: refs/heads/master@{#44486}
Committed: https://chromium.googlesource.com/v8/v8/+/1be5279bcc52c37287d0090ade4f375dcf809ada

[Benedikt Meurer, 2017-04-07 12:07:15]

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

[commit-bot: I haz the power, 2017-04-07 12:07:17]

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

[Jarin, 2017-04-07 12:12:19]

lgtm

[Benedikt Meurer, 2017-04-07 12:12:51]

The CQ bit was unchecked by bmeurer@chromium.org

[Benedikt Meurer, 2017-04-07 12:12:54]

The CQ bit was checked by bmeurer@chromium.org

[commit-bot: I haz the power, 2017-04-07 12:12:58]

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, 2017-04-07 12:32:12]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1491567174163180, "parent_rev":
"039617d75483e10ded4d60d08d684bba08d8bdb9", "commit_rev":
"1be5279bcc52c37287d0090ade4f375dcf809ada"}

[commit-bot: I haz the power, 2017-04-07 12:32:18]

Description was changed from

==========
[turbofan] Also run the CheckpointElimination as part of load elimination.

The LoadElimination (and potentially earlier passes too) might have
removed or lowered side-effecting operations, which allows for further
combining of check points in the graph, removing unnecessary StateValue
uses for the later truncation analysis.

BUG=chromium:709398
R=jarin@chromium.org
==========

to

==========
[turbofan] Also run the CheckpointElimination as part of load elimination.

The LoadElimination (and potentially earlier passes too) might have
removed or lowered side-effecting operations, which allows for further
combining of check points in the graph, removing unnecessary StateValue
uses for the later truncation analysis.

BUG=chromium:709398
R=jarin@chromium.org

Review-Url: https://codereview.chromium.org/2807563002
Cr-Commit-Position: refs/heads/master@{#44486}
Committed:
https://chromium.googlesource.com/v8/v8/+/1be5279bcc52c37287d0090ade4f375dcf8...
==========

[commit-bot: I haz the power, 2017-04-07 12:32:19]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/v8/v8/+/1be5279bcc52c37287d0090ade4f375dcf8...