[Atomics] Add dmb/dsb/isb instructions to ARM

[Atomics] Add dmb/dsb/isb instructions to ARM

This is not currently implemented in the simulator, just the assembler and
disassembler.

BUG=v8:4614
LOG=y

Committed: https://crrev.com/2869071588c65d4527ff54a9d772125f27d3b1a6
Cr-Commit-Position: refs/heads/master@{#34093}

[binji, 2016-02-17 00:16:42]

binji@chromium.org changed reviewers:
+ jarin@chromium.org

[binji, 2016-02-17 00:16:42]

I separated this out from https://codereview.chromium.org/1617503003/, PTAL.

[Jarin, 2016-02-17 07:32:51]

lgtm, thanks!

[binji, 2016-02-17 18:28:32]

The CQ bit was checked by binji@chromium.org

[commit-bot: I haz the power, 2016-02-17 18:28:40]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1699173003/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1699173003/1

[commit-bot: I haz the power, 2016-02-17 18:46:45]

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

[commit-bot: I haz the power, 2016-02-17 18:46:46]

Try jobs failed on following builders:
  v8_presubmit on tryserver.v8 (JOB_FAILED,
http://build.chromium.org/p/tryserver.v8/builders/v8_presubmit/builds/11136)

[binji, 2016-02-17 19:54:35]

Description was changed from

==========
[Atomics] Add dmb/dsb/isb instructions to ARM

This is not currently implemented in the simulator, just the assembler and
disassembler.

BUG=v8:4614
==========

to

==========
[Atomics] Add dmb/dsb/isb instructions to ARM

This is not currently implemented in the simulator, just the assembler and
disassembler.

BUG=v8:4614
LOG=y
==========

[binji, 2016-02-17 19:54:42]

The CQ bit was checked by binji@chromium.org

[commit-bot: I haz the power, 2016-02-17 19:54:53]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1699173003/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1699173003/1

[commit-bot: I haz the power, 2016-02-17 19:57:24]

Description was changed from

==========
[Atomics] Add dmb/dsb/isb instructions to ARM

This is not currently implemented in the simulator, just the assembler and
disassembler.

BUG=v8:4614
LOG=y
==========

to

==========
[Atomics] Add dmb/dsb/isb instructions to ARM

This is not currently implemented in the simulator, just the assembler and
disassembler.

BUG=v8:4614
LOG=y
==========

[commit-bot: I haz the power, 2016-02-17 19:57:25]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-02-17 19:58:10]

Description was changed from

==========
[Atomics] Add dmb/dsb/isb instructions to ARM

This is not currently implemented in the simulator, just the assembler and
disassembler.

BUG=v8:4614
LOG=y
==========

to

==========
[Atomics] Add dmb/dsb/isb instructions to ARM

This is not currently implemented in the simulator, just the assembler and
disassembler.

BUG=v8:4614
LOG=y

Committed: https://crrev.com/2869071588c65d4527ff54a9d772125f27d3b1a6
Cr-Commit-Position: refs/heads/master@{#34093}
==========

[commit-bot: I haz the power, 2016-02-17 19:58:11]

Patchset 1 (id:??) landed as
https://crrev.com/2869071588c65d4527ff54a9d772125f27d3b1a6
Cr-Commit-Position: refs/heads/master@{#34093}