[turbofan] Handle word32 truncation in word32->tagged representation change.

[turbofan] Handle word32 truncation in word32->tagged representation change.

Similarly to the word32->float64 case, we interpret word32 as uint32 if
the value is word32 truncated. This is fine because the users declared
they only care about mod 2^32 of the value (that's what word32
truncation means).

This CL also removes the ad-hoc handling of this situation
(https://codereview.chromium.org/2311903002).

BUG=chromium:644048
Committed: https://crrev.com/01cc19fa6f76511f3cc88e0af795620c913b8304
Cr-Commit-Position: refs/heads/master@{#39224}

[Jarin, 2016-09-06 19:55:36]

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

[commit-bot: I haz the power, 2016-09-06 19:55:38]

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

[Jarin, 2016-09-06 19:59:52]

Description was changed from

==========
[turbofan] Handle word32 truncation in word32->tagged representationc change.
==========

to

==========
[turbofan] Handle word32 truncation in word32->tagged representation change.

Similarly to the word32->float64 case, we interpret word32 as uint32 if the
value is word32 truncated.
This is fine because the users declared they only care about mod 2^32 of the
value (that's what word32
truncation means).

This CL also removes the ad-hoc fix for the case when we need this change
(https://codereview.chromium.org/2311903002).

BUG=chromium:644048
==========

[Jarin, 2016-09-06 20:00:55]

Description was changed from

==========
[turbofan] Handle word32 truncation in word32->tagged representation change.

Similarly to the word32->float64 case, we interpret word32 as uint32 if the
value is word32 truncated.
This is fine because the users declared they only care about mod 2^32 of the
value (that's what word32
truncation means).

This CL also removes the ad-hoc fix for the case when we need this change
(https://codereview.chromium.org/2311903002).

BUG=chromium:644048
==========

to

==========
[turbofan] Handle word32 truncation in word32->tagged representation change.

Similarly to the word32->float64 case, we interpret word32 as uint32 if 
the value is word32 truncated. This is fine because the users declared 
they only care about mod 2^32 of the value (that's what word32
truncation means).

This CL also removes the ad-hoc fix for the case when we need this
change (https://codereview.chromium.org/2311903002).

BUG=chromium:644048
==========

[Jarin, 2016-09-06 20:07:44]

Description was changed from

==========
[turbofan] Handle word32 truncation in word32->tagged representation change.

Similarly to the word32->float64 case, we interpret word32 as uint32 if 
the value is word32 truncated. This is fine because the users declared 
they only care about mod 2^32 of the value (that's what word32
truncation means).

This CL also removes the ad-hoc fix for the case when we need this
change (https://codereview.chromium.org/2311903002).

BUG=chromium:644048
==========

to

==========
[turbofan] Handle word32 truncation in word32->tagged representation change.

Similarly to the word32->float64 case, we interpret word32 as uint32 if 
the value is word32 truncated. This is fine because the users declared 
they only care about mod 2^32 of the value (that's what word32
truncation means).

This CL also removes the ad-hoc handling of this situation
(https://codereview.chromium.org/2311903002).

BUG=chromium:644048
==========

[Jarin, 2016-09-06 20:11:47]

Description was changed from

==========
[turbofan] Handle word32 truncation in word32->tagged representation change.

Similarly to the word32->float64 case, we interpret word32 as uint32 if 
the value is word32 truncated. This is fine because the users declared 
they only care about mod 2^32 of the value (that's what word32
truncation means).

This CL also removes the ad-hoc handling of this situation
(https://codereview.chromium.org/2311903002).

BUG=chromium:644048
==========

to

==========
[turbofan] Handle word32 truncation in word32->tagged representation change.

Similarly to the word32->float64 case, we interpret word32 as uint32 if 
the value is word32 truncated. This is fine because the users declared 
they only care about mod 2^32 of the value (that's what word32
truncation means).

This CL also removes the ad-hoc handling of this situation 
(https://codereview.chromium.org/2311903002).

BUG=chromium:644048
==========

[Jarin, 2016-09-06 20:12:26]

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

[Jarin, 2016-09-06 20:12:27]

Could you take a look, please?

[commit-bot: I haz the power, 2016-09-06 20:24:13]

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

[commit-bot: I haz the power, 2016-09-06 20:24:14]

Dry run: This issue passed the CQ dry run.

[Benedikt Meurer, 2016-09-06 20:43:38]

Awesome, thanks. LGTM.

[Jarin, 2016-09-06 20:55:25]

The CQ bit was checked by jarin@chromium.org

[commit-bot: I haz the power, 2016-09-06 20:55:41]

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, 2016-09-06 20:57:38]

Description was changed from

==========
[turbofan] Handle word32 truncation in word32->tagged representation change.

Similarly to the word32->float64 case, we interpret word32 as uint32 if 
the value is word32 truncated. This is fine because the users declared 
they only care about mod 2^32 of the value (that's what word32
truncation means).

This CL also removes the ad-hoc handling of this situation 
(https://codereview.chromium.org/2311903002).

BUG=chromium:644048
==========

to

==========
[turbofan] Handle word32 truncation in word32->tagged representation change.

Similarly to the word32->float64 case, we interpret word32 as uint32 if 
the value is word32 truncated. This is fine because the users declared 
they only care about mod 2^32 of the value (that's what word32
truncation means).

This CL also removes the ad-hoc handling of this situation 
(https://codereview.chromium.org/2311903002).

BUG=chromium:644048
==========

[commit-bot: I haz the power, 2016-09-06 20:57:42]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-09-06 20:58:38]

Description was changed from

==========
[turbofan] Handle word32 truncation in word32->tagged representation change.

Similarly to the word32->float64 case, we interpret word32 as uint32 if 
the value is word32 truncated. This is fine because the users declared 
they only care about mod 2^32 of the value (that's what word32
truncation means).

This CL also removes the ad-hoc handling of this situation 
(https://codereview.chromium.org/2311903002).

BUG=chromium:644048
==========

to

==========
[turbofan] Handle word32 truncation in word32->tagged representation change.

Similarly to the word32->float64 case, we interpret word32 as uint32 if
the value is word32 truncated. This is fine because the users declared
they only care about mod 2^32 of the value (that's what word32
truncation means).

This CL also removes the ad-hoc handling of this situation
(https://codereview.chromium.org/2311903002).

BUG=chromium:644048

Committed: https://crrev.com/01cc19fa6f76511f3cc88e0af795620c913b8304
Cr-Commit-Position: refs/heads/master@{#39224}
==========

[commit-bot: I haz the power, 2016-09-06 20:58:39]

Patchset 1 (id:??) landed as
https://crrev.com/01cc19fa6f76511f3cc88e0af795620c913b8304
Cr-Commit-Position: refs/heads/master@{#39224}