[turbofan] Fix typed lowering of JSToLength.

[turbofan] Fix typed lowering of JSToLength.

When lowering JSToLength, we cannot just smash arbitrary bounds on the
Select nodes, as that will confuse the representation selection later.
Instead properly rename the input using NumberMax and NumberMin.

R=jarin@chromium.org
BUG=chromium:657478
Committed: https://crrev.com/a58d7907ea0948e185ab2f41d22846d7a7563bc6
Cr-Commit-Position: refs/heads/master@{#40519}

[Benedikt Meurer, 2016-10-24 04:10:35]

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

[commit-bot: I haz the power, 2016-10-24 04:10:41]

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

[Benedikt Meurer, 2016-10-24 04:11:45]

Hey Jaro,

Here's a fix for the JSToLength lowering (the representation selection was
confused how to convert Integral32 to kRepWord32).
Please take a look.

Thanks,
Benedikt

[commit-bot: I haz the power, 2016-10-24 04:39:13]

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

[commit-bot: I haz the power, 2016-10-24 04:39:14]

Dry run: This issue passed the CQ dry run.

[Jarin, 2016-10-24 06:13:52]

lgtm

[Benedikt Meurer, 2016-10-24 06:32:57]

The CQ bit was checked by bmeurer@chromium.org

[commit-bot: I haz the power, 2016-10-24 06:33:06]

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, 2016-10-24 06:36:49]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-11-17 22:10:28]

Description was changed from

==========
[turbofan] Fix typed lowering of JSToLength.

When lowering JSToLength, we cannot just smash arbitrary bounds on the
Select nodes, as that will confuse the representation selection later.
Instead properly rename the input using NumberMax and NumberMin.

R=jarin@chromium.org
BUG=chromium:657478
==========

to

==========
[turbofan] Fix typed lowering of JSToLength.

When lowering JSToLength, we cannot just smash arbitrary bounds on the
Select nodes, as that will confuse the representation selection later.
Instead properly rename the input using NumberMax and NumberMin.

R=jarin@chromium.org
BUG=chromium:657478

Committed: https://crrev.com/a58d7907ea0948e185ab2f41d22846d7a7563bc6
Cr-Commit-Position: refs/heads/master@{#40519}
==========

[commit-bot: I haz the power, 2016-11-17 22:10:29]

Patchset 1 (id:??) landed as
https://crrev.com/a58d7907ea0948e185ab2f41d22846d7a7563bc6
Cr-Commit-Position: refs/heads/master@{#40519}