[turbofan] Constant-fold "length" property on strings.

[turbofan] Constant-fold "length" property on strings.

When lowering loads of "length" on compile-time constant strings,
generate constant length instead of a load.

R=yangguo@chromium.org

Committed: https://crrev.com/a2d4a7932e58f25938aa8e269d3d4c56500f71aa
Cr-Commit-Position: refs/heads/master@{#40518}

[Benedikt Meurer, 2016-10-24 05:57:25]

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

[commit-bot: I haz the power, 2016-10-24 05:57:32]

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

[Yang, 2016-10-24 05:58:40]

On 2016/10/24 05:57:24, Benedikt Meurer wrote:

lgtm.

[Benedikt Meurer, 2016-10-24 06:00:26]

The CQ bit was unchecked by bmeurer@chromium.org

[Benedikt Meurer, 2016-10-24 06:00:29]

The CQ bit was checked by bmeurer@chromium.org

[commit-bot: I haz the power, 2016-10-24 06:00:31]

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 06:25:14]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-11-17 22:10:26]

Description was changed from

==========
[turbofan] Constant-fold "length" property on strings.

When lowering loads of "length" on compile-time constant strings,
generate constant length instead of a load.

R=yangguo@chromium.org
==========

to

==========
[turbofan] Constant-fold "length" property on strings.

When lowering loads of "length" on compile-time constant strings,
generate constant length instead of a load.

R=yangguo@chromium.org

Committed: https://crrev.com/a2d4a7932e58f25938aa8e269d3d4c56500f71aa
Cr-Commit-Position: refs/heads/master@{#40518}
==========

[commit-bot: I haz the power, 2016-11-17 22:10:27]

Patchset 1 (id:??) landed as
https://crrev.com/a2d4a7932e58f25938aa8e269d3d4c56500f71aa
Cr-Commit-Position: refs/heads/master@{#40518}