[turbofan] Use the type from the typer instead of computing new type in representation inference.

[turbofan] Use the type from the typer instead of computing new type in representation inference.

Committed: https://crrev.com/811137ffe58b3a136dcf2eac3321c225883b455e
Cr-Commit-Position: refs/heads/master@{#34917}

[Jarin, 2016-03-14 15:29:52]

Description was changed from

==========
[turbofan] Use the type from the typer instead of computing new type.
==========

to

==========
[turbofan] Use the type from the typer instead of computing new type in
representation inference.
==========

[Jarin, 2016-03-14 15:29:52]

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

[Jarin, 2016-03-14 15:37:40]

Could you take a look, please? 

Yes, it is a bit scary as the representation changer might be confused about how
to do a conversion if the upper bound is too large for word32 representation. I
like to think we only choose word32 if the upper bound is not too large or if
the node is truncated (so it does not matter whether we treat it as int32 or
uint32). There is also a check in the representation changer to that effect, so
a bug there should  not be a security problem.

[Jarin, 2016-03-21 05:40:43]

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

[Benedikt Meurer, 2016-03-21 05:50:50]

LGTM.

[Jarin, 2016-03-21 06:06:39]

The CQ bit was checked by jarin@chromium.org

[commit-bot: I haz the power, 2016-03-21 06:06:41]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1799023003/20001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1799023003/20001

[commit-bot: I haz the power, 2016-03-21 06:28:45]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2016-03-21 06:29:51]

Description was changed from

==========
[turbofan] Use the type from the typer instead of computing new type in
representation inference.
==========

to

==========
[turbofan] Use the type from the typer instead of computing new type in
representation inference.

Committed: https://crrev.com/811137ffe58b3a136dcf2eac3321c225883b455e
Cr-Commit-Position: refs/heads/master@{#34917}
==========

[commit-bot: I haz the power, 2016-03-21 06:29:52]

Patchset 2 (id:??) landed as
https://crrev.com/811137ffe58b3a136dcf2eac3321c225883b455e
Cr-Commit-Position: refs/heads/master@{#34917}