PPC: Support for conditional return instruction.

PPC: Support for conditional return instruction.

R=dstence@us.ibm.com, michael_dawson@ca.ibm.com
BUG=
NOTREECHECKS=true

Committed: https://crrev.com/e2487b805d2e221bb171722fedd32960706e0fc9
Cr-Commit-Position: refs/heads/master@{#29907}

[dstence, 2015-07-24 21:05:37]

lgtm

[MTBrandyberry, 2015-07-24 21:09:37]

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

[commit-bot: I haz the power, 2015-07-24 21:09:48]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1259723002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1259723002/1

[commit-bot: I haz the power, 2015-07-24 21:14:32]

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

[commit-bot: I haz the power, 2015-07-24 21:14:32]

Try jobs failed on following builders:
  v8_presubmit on tryserver.v8 (JOB_FAILED,
http://build.chromium.org/p/tryserver.v8/builders/v8_presubmit/builds/4452)

[MTBrandyberry, 2015-07-24 21:34:48]

mbrandy@us.ibm.com changed reviewers:
+ danno@chromium.org

[MTBrandyberry, 2015-07-24 21:35:34]

On 2015/07/24 21:14:32, commit-bot: I haz the power wrote:
> Try jobs failed on following builders:
>   v8_presubmit on tryserver.v8 (JOB_FAILED,
> http://build.chromium.org/p/tryserver.v8/builders/v8_presubmit/builds/4452)

I need someone with general authority to approve due to the change in
test/cctest/test-disasm-ppc.cc.

[MTBrandyberry, 2015-07-27 20:25:23]

On 2015/07/24 21:35:34, mtbrandyberry wrote:
> On 2015/07/24 21:14:32, commit-bot: I haz the power wrote:
> > Try jobs failed on following builders:
> >   v8_presubmit on tryserver.v8 (JOB_FAILED,
> > http://build.chromium.org/p/tryserver.v8/builders/v8_presubmit/builds/4452)
> 
> I need someone with general authority to approve due to the change in
> test/cctest/test-disasm-ppc.cc.

PPC buildbot is failing due to this.  We still need approval here or
https://codereview.chromium.org/1259013002/ to allow the test modification.

[MTBrandyberry, 2015-07-28 20:41:52]

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

[commit-bot: I haz the power, 2015-07-28 20:42:03]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1259723002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1259723002/1

[commit-bot: I haz the power, 2015-07-28 20:46:00]

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

[commit-bot: I haz the power, 2015-07-28 20:46:01]

Try jobs failed on following builders:
  v8_presubmit on tryserver.v8 (JOB_FAILED,
http://build.chromium.org/p/tryserver.v8/builders/v8_presubmit/builds/4518)

[MTBrandyberry, 2015-07-29 12:42:04]

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

[commit-bot: I haz the power, 2015-07-29 12:42:14]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1259723002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1259723002/1

[Michael Hablich, 2015-07-30 07:28:13]

The CQ bit was unchecked by hablich@chromium.org

[Michael Hablich, 2015-07-30 07:28:33]

The CQ bit was checked by hablich@chromium.org

[commit-bot: I haz the power, 2015-07-30 07:28:55]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1259723002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1259723002/1

[commit-bot: I haz the power, 2015-07-30 07:30:32]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-07-30 07:30:47]

Patchset 1 (id:??) landed as
https://crrev.com/e2487b805d2e221bb171722fedd32960706e0fc9
Cr-Commit-Position: refs/heads/master@{#29907}