[turbofan] Don't eliminate unused CheckFloat64Hole.

[turbofan] Don't eliminate unused CheckFloat64Hole.

We cannot eliminate unused CheckFloat64Hole nodes, since loading from a
holey array can have side-effects, i.e. triggering getters in the
prototype chain.

R=mvstanton@chromium.org
BUG=chromium:686737
Review-Url: https://codereview.chromium.org/2665123002
Cr-Commit-Position: refs/heads/master@{#42806}
Committed: https://chromium.googlesource.com/v8/v8/+/b8df95499338c86cf29bb8502a488a5ebf41c415

[Benedikt Meurer, 2017-01-31 07:17:02]

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

[commit-bot: I haz the power, 2017-01-31 07:17:12]

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, 2017-01-31 07:49:18]

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

[commit-bot: I haz the power, 2017-01-31 07:49:18]

Dry run: This issue passed the CQ dry run.

[Jarin, 2017-01-31 08:11:18]

jarin@chromium.org changed reviewers:
+ jarin@chromium.org

[Jarin, 2017-01-31 08:11:18]

lgtm

[Benedikt Meurer, 2017-01-31 08:28:54]

The CQ bit was checked by bmeurer@chromium.org

[commit-bot: I haz the power, 2017-01-31 08:28:59]

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 08:30:56]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1485851334054930, "parent_rev":
"a14f22818851558ec51f04f5fa3396e242f10b78", "commit_rev":
"b8df95499338c86cf29bb8502a488a5ebf41c415"}

[commit-bot: I haz the power, 2017-01-31 08:31:00]

Description was changed from

==========
[turbofan] Don't eliminate unused CheckFloat64Hole.

We cannot eliminate unused CheckFloat64Hole nodes, since loading from a
holey array can have side-effects, i.e. triggering getters in the
prototype chain.

R=mvstanton@chromium.org
BUG=chromium:686737
==========

to

==========
[turbofan] Don't eliminate unused CheckFloat64Hole.

We cannot eliminate unused CheckFloat64Hole nodes, since loading from a
holey array can have side-effects, i.e. triggering getters in the
prototype chain.

R=mvstanton@chromium.org
BUG=chromium:686737

Review-Url: https://codereview.chromium.org/2665123002
Cr-Commit-Position: refs/heads/master@{#42806}
Committed:
https://chromium.googlesource.com/v8/v8/+/b8df95499338c86cf29bb8502a488a5ebf4...
==========

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

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/v8/v8/+/b8df95499338c86cf29bb8502a488a5ebf4...