[turbofan] Add constant-folding for CheckedFloat64ToInt32.

[turbofan] Add constant-folding for CheckedFloat64ToInt32.

BUG=v8:5267
R=jarin@chromium.org

Review-Url: https://codereview.chromium.org/2612763002
Cr-Commit-Position: refs/heads/master@{#42060}
Committed: https://chromium.googlesource.com/v8/v8/+/7aa3931fa4d54091e4746e422be1d6f3ff89c816

[Benedikt Meurer, 2017-01-04 08:34:50]

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

[commit-bot: I haz the power, 2017-01-04 08:34:57]

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

[Benedikt Meurer, 2017-01-04 08:35:23]

Hey Jaro,

Here's another easy one.
Please take a look.

Thanks,
Benedikt

[Jarin, 2017-01-04 08:49:37]

lgtm

[Benedikt Meurer, 2017-01-04 08:49:52]

The CQ bit was unchecked by bmeurer@chromium.org

[Benedikt Meurer, 2017-01-04 08:49:55]

The CQ bit was checked by bmeurer@chromium.org

[commit-bot: I haz the power, 2017-01-04 08:49:58]

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, 2017-01-04 09:43:24]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1483519795268480, "parent_rev":
"95db8643e1831918c6775d794dbaa3d9299613a9", "commit_rev":
"7aa3931fa4d54091e4746e422be1d6f3ff89c816"}

[commit-bot: I haz the power, 2017-01-04 09:43:28]

Description was changed from

==========
[turbofan] Add constant-folding for CheckedFloat64ToInt32.

BUG=v8:5267
R=jarin@chromium.org
==========

to

==========
[turbofan] Add constant-folding for CheckedFloat64ToInt32.

BUG=v8:5267
R=jarin@chromium.org

Review-Url: https://codereview.chromium.org/2612763002
Cr-Commit-Position: refs/heads/master@{#42060}
Committed:
https://chromium.googlesource.com/v8/v8/+/7aa3931fa4d54091e4746e422be1d6f3ff8...
==========

[commit-bot: I haz the power, 2017-01-04 09:43:29]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/v8/v8/+/7aa3931fa4d54091e4746e422be1d6f3ff8...