[turbofan] Move more type checks to the representation selector.

[turbofan] Move more type checks to the representation selector.

Get rid of further typing checks from ChangeLowering and put them into
the representation selection pass instead (encoding the information in
the operator instead).

Drive-by-change: Rename ChangeSmiToInt32 to ChangeTaggedSignedToInt32
for consistency about naming Tagged, TaggedSigned and TaggedPointer.

R=jarin@chromium.org

Committed: https://crrev.com/550c0f9f55a4da48634481ac3ab8ea486fdbbdff
Cr-Commit-Position: refs/heads/master@{#35723}

[Benedikt Meurer, 2016-04-22 10:33:25]

Hey Jaro,

Next cleanup for representation selection.
Please take a look.

Thanks,
Benedikt

[Jarin, 2016-04-22 10:35:30]

lgtm

https://codereview.chromium.org/1909343002/diff/1/src/compiler/representation...
File src/compiler/representation-change.cc (right):

https://codereview.chromium.org/1909343002/diff/1/src/compiler/representation...
src/compiler/representation-change.cc:327:
std::numeric_limits<double>::quiet_NaN());
Nice! Thanks.

[Benedikt Meurer, 2016-04-22 10:35:42]

The CQ bit was checked by bmeurer@chromium.org

[commit-bot: I haz the power, 2016-04-22 10:35:56]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1909343002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1909343002/1

[commit-bot: I haz the power, 2016-04-22 11:03:03]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-04-22 19:15:24]

Description was changed from

==========
[turbofan] Move more type checks to the representation selector.

Get rid of further typing checks from ChangeLowering and put them into
the representation selection pass instead (encoding the information in
the operator instead).

Drive-by-change: Rename ChangeSmiToInt32 to ChangeTaggedSignedToInt32
for consistency about naming Tagged, TaggedSigned and TaggedPointer.

R=jarin@chromium.org
==========

to

==========
[turbofan] Move more type checks to the representation selector.

Get rid of further typing checks from ChangeLowering and put them into
the representation selection pass instead (encoding the information in
the operator instead).

Drive-by-change: Rename ChangeSmiToInt32 to ChangeTaggedSignedToInt32
for consistency about naming Tagged, TaggedSigned and TaggedPointer.

R=jarin@chromium.org

Committed: https://crrev.com/550c0f9f55a4da48634481ac3ab8ea486fdbbdff
Cr-Commit-Position: refs/heads/master@{#35723}
==========

[commit-bot: I haz the power, 2016-04-22 19:15:25]

Patchset 1 (id:??) landed as
https://crrev.com/550c0f9f55a4da48634481ac3ab8ea486fdbbdff
Cr-Commit-Position: refs/heads/master@{#35723}