PPC: [turbofan] Add the TruncateFloat32ToInt32 operator to turbofan.

PPC: [turbofan] Add the TruncateFloat32ToInt32 operator to turbofan.

Port fc53eed14b2366ceb24b1ad1da5d70533a1e7830

Original commit message:
    The new operator converts a float32 input to int32 through truncation.

R=ahaas@chromium.org, joransiu@ca.ibm.com, jyan@ca.ibm.com, michael_dawson@ca.ibm.com
BUG=

Committed: https://crrev.com/0f041e60c58f9c4cce2f8e9fb50989256a3d496a
Cr-Commit-Position: refs/heads/master@{#33392}

[MTBrandyberry, 2016-01-19 16:25:13]

The CQ bit was checked by mbrandy@us.ibm.com to run a CQ dry run

[commit-bot: I haz the power, 2016-01-19 16:25:19]

Dry run: CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1593333006/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1593333006/1

[JoranSiu, 2016-01-19 16:39:47]

On 2016/01/19 16:25:19, commit-bot: I haz the power wrote:
> Dry run: CQ is trying da patch. Follow status at
>  https://chromium-cq-status.appspot.com/patch-status/1593333006/1
> View timeline at
>  https://chromium-cq-status.appspot.com/patch-timeline/1593333006/1

lgtm

[commit-bot: I haz the power, 2016-01-19 16:53:40]

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

[commit-bot: I haz the power, 2016-01-19 16:53:40]

Dry run: This issue passed the CQ dry run.

[MTBrandyberry, 2016-01-19 17:06:53]

The CQ bit was checked by mbrandy@us.ibm.com

[commit-bot: I haz the power, 2016-01-19 17:07:05]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1593333006/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1593333006/1

[commit-bot: I haz the power, 2016-01-19 17:08:17]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-01-19 17:09:14]

Description was changed from

==========
PPC: [turbofan] Add the TruncateFloat32ToInt32 operator to turbofan.

Port fc53eed14b2366ceb24b1ad1da5d70533a1e7830

Original commit message:
    The new operator converts a float32 input to int32 through truncation.

R=ahaas@chromium.org, joransiu@ca.ibm.com, jyan@ca.ibm.com,
michael_dawson@ca.ibm.com
BUG=
==========

to

==========
PPC: [turbofan] Add the TruncateFloat32ToInt32 operator to turbofan.

Port fc53eed14b2366ceb24b1ad1da5d70533a1e7830

Original commit message:
    The new operator converts a float32 input to int32 through truncation.

R=ahaas@chromium.org, joransiu@ca.ibm.com, jyan@ca.ibm.com,
michael_dawson@ca.ibm.com
BUG=

Committed: https://crrev.com/0f041e60c58f9c4cce2f8e9fb50989256a3d496a
Cr-Commit-Position: refs/heads/master@{#33392}
==========

[commit-bot: I haz the power, 2016-01-19 17:09:15]

Patchset 1 (id:??) landed as
https://crrev.com/0f041e60c58f9c4cce2f8e9fb50989256a3d496a
Cr-Commit-Position: refs/heads/master@{#33392}