S390X: [turbofan] Fix checked loads/stores.

S390X: [turbofan] Fix checked loads/stores.

This refines 6382a61059daf167511a224f8760a23473812de6 -- as we still
require clean up of the uint index register.

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

Conflicts:
	src/compiler/s390/code-generator-s390.cc

Committed: https://crrev.com/3e9924f6ddc2af8d32bd0f1391b50c5e8891b4ae
Cr-Commit-Position: refs/heads/master@{#35879}

[john.yan, 2016-04-26 13:56:03]

PTAL

[john.yan, 2016-04-26 16:48:09]

The CQ bit was checked by jyan@ca.ibm.com to run a CQ dry run

[commit-bot: I haz the power, 2016-04-26 16:48:20]

Dry run: CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1921073003/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1921073003/1

[commit-bot: I haz the power, 2016-04-26 16:53:51]

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

[commit-bot: I haz the power, 2016-04-26 16:53:51]

Dry run: Try jobs failed on following builders:
  v8_mac_rel_ng on tryserver.v8 (JOB_FAILED,
http://build.chromium.org/p/tryserver.v8/builders/v8_mac_rel_ng/builds/757)

[john.yan, 2016-04-26 18:32:55]

The CQ bit was checked by jyan@ca.ibm.com to run a CQ dry run

[commit-bot: I haz the power, 2016-04-26 18:32:58]

Dry run: CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1921073003/20001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1921073003/20001

[commit-bot: I haz the power, 2016-04-26 18:56:48]

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

[commit-bot: I haz the power, 2016-04-26 18:56:49]

Dry run: This issue passed the CQ dry run.

[JoranSiu, 2016-04-26 20:37:48]

https://codereview.chromium.org/1921073003/diff/20001/src/compiler/s390/code-...
File src/compiler/s390/code-generator-s390.cc (right):

https://codereview.chromium.org/1921073003/diff/20001/src/compiler/s390/code-...
src/compiler/s390/code-generator-s390.cc:455: #if V8_TARGET_ARCH_S390X
Should we make this in macro asm?

[john.yan, 2016-04-28 19:05:04]

The CQ bit was checked by jyan@ca.ibm.com to run a CQ dry run

[commit-bot: I haz the power, 2016-04-28 19:05:08]

Dry run: CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1921073003/40001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1921073003/40001

[JoranSiu, 2016-04-28 19:14:36]

On 2016/04/28 19:05:08, 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/1921073003/40001
> View timeline at
>  https://chromium-cq-status.appspot.com/patch-timeline/1921073003/40001

lgtm

[commit-bot: I haz the power, 2016-04-28 19:25:45]

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

[commit-bot: I haz the power, 2016-04-28 19:25:46]

Dry run: This issue passed the CQ dry run.

[john.yan, 2016-04-28 19:39:57]

The CQ bit was checked by jyan@ca.ibm.com

[commit-bot: I haz the power, 2016-04-28 19:40:14]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1921073003/40001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1921073003/40001

[commit-bot: I haz the power, 2016-04-28 19:43:38]

Committed patchset #3 (id:40001)

[commit-bot: I haz the power, 2016-05-01 22:02:57]

Description was changed from

==========
S390X: [turbofan] Fix checked loads/stores.

This refines 6382a61059daf167511a224f8760a23473812de6 -- as we still
require clean up of the uint index register.

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

Conflicts:
	src/compiler/s390/code-generator-s390.cc
==========

to

==========
S390X: [turbofan] Fix checked loads/stores.

This refines 6382a61059daf167511a224f8760a23473812de6 -- as we still
require clean up of the uint index register.

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

Conflicts:
	src/compiler/s390/code-generator-s390.cc

Committed: https://crrev.com/3e9924f6ddc2af8d32bd0f1391b50c5e8891b4ae
Cr-Commit-Position: refs/heads/master@{#35879}
==========

[commit-bot: I haz the power, 2016-05-01 22:02:58]

Patchset 3 (id:??) landed as
https://crrev.com/3e9924f6ddc2af8d32bd0f1391b50c5e8891b4ae
Cr-Commit-Position: refs/heads/master@{#35879}