[turbofan] Refactor the compare-zero folding in instruction selector.

[turbofan] Refactor the compare-zero folding in instruction selector.

Committed: https://crrev.com/9b308dcaf5ce0597a2acfd85d7104ed263c472aa
Cr-Commit-Position: refs/heads/master@{#40721}

[Jarin, 2016-11-03 10:56:25]

The CQ bit was checked by jarin@chromium.org to run a CQ dry run

[commit-bot: I haz the power, 2016-11-03 10:56:35]

Dry run: CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2016-11-03 11:01:06]

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

[commit-bot: I haz the power, 2016-11-03 11:01:07]

Dry run: Try jobs failed on following builders:
  v8_linux_mips64el_compile_rel on master.tryserver.v8 (JOB_FAILED,
http://build.chromium.org/p/tryserver.v8/builders/v8_linux_mips64el_compile_r...)

[Jarin, 2016-11-03 11:43:10]

The CQ bit was checked by jarin@chromium.org to run a CQ dry run

[commit-bot: I haz the power, 2016-11-03 11:43:15]

Dry run: CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[Jarin, 2016-11-03 11:53:56]

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

[Jarin, 2016-11-03 11:53:56]

Could you take a look, please?

[commit-bot: I haz the power, 2016-11-03 12:09:32]

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

[commit-bot: I haz the power, 2016-11-03 12:09:33]

Dry run: This issue passed the CQ dry run.

[Benedikt Meurer, 2016-11-03 12:28:11]

lgtm

[Jarin, 2016-11-03 12:28:45]

The CQ bit was checked by jarin@chromium.org

[commit-bot: I haz the power, 2016-11-03 12:28:53]

CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2016-11-03 12:30:36]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2016-11-17 22:20:22]

Description was changed from

==========
[turbofan] Refactor the compare-zero folding in instruction selector.
==========

to

==========
[turbofan] Refactor the compare-zero folding in instruction selector.

Committed: https://crrev.com/9b308dcaf5ce0597a2acfd85d7104ed263c472aa
Cr-Commit-Position: refs/heads/master@{#40721}
==========

[commit-bot: I haz the power, 2016-11-17 22:20:23]

Patchset 2 (id:??) landed as
https://crrev.com/9b308dcaf5ce0597a2acfd85d7104ed263c472aa
Cr-Commit-Position: refs/heads/master@{#40721}