Refine Word32Pair* shift code generation.

Refine Word32Pair* shift code generation.

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

Committed: https://crrev.com/c423e9851f551845e7d13f5cba1889023facbc79
Cr-Commit-Position: refs/heads/master@{#34796}

[MTBrandyberry, 2016-03-15 18:00:12]

PTAL

[MTBrandyberry, 2016-03-15 18:00:18]

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

[commit-bot: I haz the power, 2016-03-15 18:00:29]

Dry run: CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1797383002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1797383002/1

[michael_dawson, 2016-03-15 18:19:59]

On 2016/03/15 18:00:29, 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/1797383002/1
> View timeline at
>  https://chromium-cq-status.appspot.com/patch-timeline/1797383002/1

lgtm

[commit-bot: I haz the power, 2016-03-15 18:22:56]

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

[commit-bot: I haz the power, 2016-03-15 18:22:57]

Dry run: This issue passed the CQ dry run.

[john.yan, 2016-03-15 19:01:53]

On 2016/03/15 18:00:12, MTBrandyberry wrote:
> PTAL

Forget to put PPC in the title?

[MTBrandyberry, 2016-03-15 19:27:02]

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

[commit-bot: I haz the power, 2016-03-15 19:27:04]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1797383002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1797383002/1

[commit-bot: I haz the power, 2016-03-15 19:28:46]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-03-15 19:29:25]

Description was changed from

==========
Refine Word32Pair* shift code generation.

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

to

==========
Refine Word32Pair* shift code generation.

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

Committed: https://crrev.com/c423e9851f551845e7d13f5cba1889023facbc79
Cr-Commit-Position: refs/heads/master@{#34796}
==========

[commit-bot: I haz the power, 2016-03-15 19:29:26]

Patchset 1 (id:??) landed as
https://crrev.com/c423e9851f551845e7d13f5cba1889023facbc79
Cr-Commit-Position: refs/heads/master@{#34796}