PPC: Cleanup ABI-specifc code.

PPC: Cleanup ABI-specifc code.

Where possible:
- eliminate special-case code generation for simulator.
- eliminate #ifdefs.

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

Committed: https://crrev.com/96a333d999f778dc1a27a5713956c8e76d52db6d
Cr-Commit-Position: refs/heads/master@{#33407}

[MTBrandyberry, 2016-01-19 20:00:51]

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 20:00:54]

Dry run: CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1607663004/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1607663004/1

[commit-bot: I haz the power, 2016-01-19 20:17:31]

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

[commit-bot: I haz the power, 2016-01-19 20:17:32]

Dry run: This issue passed the CQ dry run.

[JoranSiu, 2016-01-20 04:11:04]

On 2016/01/19 20:17:32, commit-bot: I haz the power wrote:
> Dry run: This issue passed the CQ dry run.

lgtm

[MTBrandyberry, 2016-01-20 13:29:23]

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

[commit-bot: I haz the power, 2016-01-20 13:29:30]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1607663004/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1607663004/1

[commit-bot: I haz the power, 2016-01-20 13:31:01]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-01-20 13:31:38]

Description was changed from

==========
PPC: Cleanup ABI-specifc code.

Where possible:
- eliminate special-case code generation for simulator.
- eliminate #ifdefs.

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

to

==========
PPC: Cleanup ABI-specifc code.

Where possible:
- eliminate special-case code generation for simulator.
- eliminate #ifdefs.

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

Committed: https://crrev.com/96a333d999f778dc1a27a5713956c8e76d52db6d
Cr-Commit-Position: refs/heads/master@{#33407}
==========

[commit-bot: I haz the power, 2016-01-20 13:31:39]

Patchset 1 (id:??) landed as
https://crrev.com/96a333d999f778dc1a27a5713956c8e76d52db6d
Cr-Commit-Position: refs/heads/master@{#33407}