MIPS: [turbofan] Make Int32Div and Uint32Div safe.

MIPS: [turbofan]  Make Int32Div and Uint32Div safe.

TEST=
BUG=

Committed: https://crrev.com/d7aa94b90b350839321561af38fea6c239aaf50e
Cr-Commit-Position: refs/heads/master@{#32685}

[dusan.milosavljevic, 2015-12-07 14:21:53]

dusan.m.milosavljevic@gmail.com changed reviewers:
+ bmeurer@chromium.org, jkummerow@chromium.org, paul.lind@imgtec.com,
titzer@chromium.org

[dusan.milosavljevic, 2015-12-07 14:21:53]

PTAL.

Paul, please check behaviour on boards with emulated FPU in kernel. The DIV, and
DIVU instructions should not trap if divisor is zero.

[paul.l..., 2015-12-08 04:46:52]

Tests passed on hw with/without FPU. LGTM.

[dusan.milosavljevic, 2015-12-08 12:29:16]

The CQ bit was checked by dusan.m.milosavljevic@gmail.com

[commit-bot: I haz the power, 2015-12-08 12:29:22]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1503053002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1503053002/1

[commit-bot: I haz the power, 2015-12-08 12:59:05]

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

[commit-bot: I haz the power, 2015-12-08 12:59:05]

Try jobs failed on following builders:
  v8_linux_arm_rel on tryserver.v8 (JOB_FAILED,
http://build.chromium.org/p/tryserver.v8/builders/v8_linux_arm_rel/builds/11145)

[dusan.milosavljevic, 2015-12-08 14:20:35]

The CQ bit was checked by dusan.m.milosavljevic@gmail.com

[commit-bot: I haz the power, 2015-12-08 14:20:45]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1503053002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1503053002/1

[commit-bot: I haz the power, 2015-12-08 15:13:09]

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

[commit-bot: I haz the power, 2015-12-08 15:13:10]

Try jobs failed on following builders:
  v8_linux_dbg on tryserver.v8 (JOB_FAILED,
http://build.chromium.org/p/tryserver.v8/builders/v8_linux_dbg/builds/11765)

[Jakob Kummerow, 2015-12-08 15:16:43]

On 2015/12/08 15:13:10, commit-bot: I haz the power wrote:
> Try jobs failed on following builders:
>   v8_linux_dbg on tryserver.v8 (JOB_FAILED,
> http://build.chromium.org/p/tryserver.v8/builders/v8_linux_dbg/builds/11765)

Infrastructure issues (see tree status), just wait, there's no point in trying
again.

[dusan.milosavljevic, 2015-12-08 21:50:24]

The CQ bit was checked by dusan.m.milosavljevic@gmail.com

[commit-bot: I haz the power, 2015-12-08 21:50:30]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1503053002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1503053002/1

[commit-bot: I haz the power, 2015-12-08 22:45:37]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-12-08 22:46:48]

Description was changed from

==========
MIPS: [turbofan]  Make Int32Div and Uint32Div safe.

TEST=
BUG=
==========

to

==========
MIPS: [turbofan]  Make Int32Div and Uint32Div safe.

TEST=
BUG=

Committed: https://crrev.com/d7aa94b90b350839321561af38fea6c239aaf50e
Cr-Commit-Position: refs/heads/master@{#32685}
==========

[commit-bot: I haz the power, 2015-12-08 22:46:49]

Patchset 1 (id:??) landed as
https://crrev.com/d7aa94b90b350839321561af38fea6c239aaf50e
Cr-Commit-Position: refs/heads/master@{#32685}