PPC64: [turbofan] Fix checked loads/stores.

PPC64: [turbofan] Fix checked loads/stores.

This refines e7d521fb5fb9229a65672b04797a29b7a1b6f315 -- as we still
require clean up of the uint index register.

TEST=mjsunit/asm/float32array-negative-offset
R=joransiu@ca.ibm.com, jyan@ca.ibm.com, michael_dawson@ca.ibm.com, bjaideep@ca.ibm.com
BUG=

Committed: https://crrev.com/c07f022565a85457b2a9b741656f426f9016709d
Cr-Commit-Position: refs/heads/master@{#35778}

[MTBrandyberry, 2016-04-25 21:00:21]

Description was changed from

==========
PPC64: [turbofan] Fix checked loads/stores.

This refines e7d521fb5fb9229a65672b04797a29b7a1b6f315 -- as we still
require clean up of the uint index register.

TEST=mjsunit/asm/float32array-negative-offset
R==joransiu@ca.ibm.com, jyan@ca.ibm.com, michael_dawson@ca.ibm.com,
bjaideep@ca.ibm.com
BUG=
==========

to

==========
PPC64: [turbofan] Fix checked loads/stores.

This refines e7d521fb5fb9229a65672b04797a29b7a1b6f315 -- as we still
require clean up of the uint index register.

TEST=mjsunit/asm/float32array-negative-offset
R=joransiu@ca.ibm.com, jyan@ca.ibm.com, michael_dawson@ca.ibm.com,
bjaideep@ca.ibm.com
BUG=
==========

[MTBrandyberry, 2016-04-25 21:00:32]

mbrandy@us.ibm.com changed reviewers:
+ joransiu@ca.ibm.com
- =joransiu@ca.ibm.com

[MTBrandyberry, 2016-04-25 21:00:59]

PTAL

[JoranSiu, 2016-04-25 21:18:32]

On 2016/04/25 21:00:59, MTBrandyberry wrote:
> PTAL

lgtm

[MTBrandyberry, 2016-04-25 21:23:24]

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

[commit-bot: I haz the power, 2016-04-25 21:23:30]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1919003004/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1919003004/1

[commit-bot: I haz the power, 2016-04-25 21:44:56]

Description was changed from

==========
PPC64: [turbofan] Fix checked loads/stores.

This refines e7d521fb5fb9229a65672b04797a29b7a1b6f315 -- as we still
require clean up of the uint index register.

TEST=mjsunit/asm/float32array-negative-offset
R=joransiu@ca.ibm.com, jyan@ca.ibm.com, michael_dawson@ca.ibm.com,
bjaideep@ca.ibm.com
BUG=
==========

to

==========
PPC64: [turbofan] Fix checked loads/stores.

This refines e7d521fb5fb9229a65672b04797a29b7a1b6f315 -- as we still
require clean up of the uint index register.

TEST=mjsunit/asm/float32array-negative-offset
R=joransiu@ca.ibm.com, jyan@ca.ibm.com, michael_dawson@ca.ibm.com,
bjaideep@ca.ibm.com
BUG=
==========

[commit-bot: I haz the power, 2016-04-25 21:44:57]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-04-25 21:45:36]

Description was changed from

==========
PPC64: [turbofan] Fix checked loads/stores.

This refines e7d521fb5fb9229a65672b04797a29b7a1b6f315 -- as we still
require clean up of the uint index register.

TEST=mjsunit/asm/float32array-negative-offset
R=joransiu@ca.ibm.com, jyan@ca.ibm.com, michael_dawson@ca.ibm.com,
bjaideep@ca.ibm.com
BUG=
==========

to

==========
PPC64: [turbofan] Fix checked loads/stores.

This refines e7d521fb5fb9229a65672b04797a29b7a1b6f315 -- as we still
require clean up of the uint index register.

TEST=mjsunit/asm/float32array-negative-offset
R=joransiu@ca.ibm.com, jyan@ca.ibm.com, michael_dawson@ca.ibm.com,
bjaideep@ca.ibm.com
BUG=

Committed: https://crrev.com/c07f022565a85457b2a9b741656f426f9016709d
Cr-Commit-Position: refs/heads/master@{#35778}
==========

[commit-bot: I haz the power, 2016-04-25 21:45:36]

Patchset 1 (id:??) landed as
https://crrev.com/c07f022565a85457b2a9b741656f426f9016709d
Cr-Commit-Position: refs/heads/master@{#35778}