[turbofan] Reorganize the pipeline around the 2nd scheduler approach.

[turbofan] Reorganize the pipeline around the 2nd scheduler approach.

The JavaScript pipeline now consists of the following steps:

 1. Typed lowering.
 2. Representation selection (actually SimplifiedLowering).
 3. Early optimization pass (incl. JSGenericLowering).
 4. Effect control linearization (not for asm.js).
 5. Late optimization pass (incl. ChangeLowering).
 6. Real scheduling.

We should further cleanup the passes and restrict type and
representation information usage to appropriate parts of the pipeline.

R=jarin@chromium.org

Committed: https://crrev.com/5e11acc9dc28fedee6c777b27a0730ef2607ee11
Cr-Commit-Position: refs/heads/master@{#35702}

[Benedikt Meurer, 2016-04-21 11:29:58]

Hey Jaro,

Here's the first round of cleanups.
Please take a look.

Thanks,
Benedikt

[Jarin, 2016-04-21 11:31:15]

lgtm

[Benedikt Meurer, 2016-04-21 11:31:27]

The CQ bit was checked by bmeurer@chromium.org

[commit-bot: I haz the power, 2016-04-21 11:31:33]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1907963002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1907963002/1

[commit-bot: I haz the power, 2016-04-21 11:49:02]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-04-22 19:14:41]

Description was changed from

==========
[turbofan] Reorganize the pipeline around the 2nd scheduler approach.

The JavaScript pipeline now consists of the following steps:

 1. Typed lowering.
 2. Representation selection (actually SimplifiedLowering).
 3. Early optimization pass (incl. JSGenericLowering).
 4. Effect control linearization (not for asm.js).
 5. Late optimization pass (incl. ChangeLowering).
 6. Real scheduling.

We should further cleanup the passes and restrict type and
representation information usage to appropriate parts of the pipeline.

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

to

==========
[turbofan] Reorganize the pipeline around the 2nd scheduler approach.

The JavaScript pipeline now consists of the following steps:

 1. Typed lowering.
 2. Representation selection (actually SimplifiedLowering).
 3. Early optimization pass (incl. JSGenericLowering).
 4. Effect control linearization (not for asm.js).
 5. Late optimization pass (incl. ChangeLowering).
 6. Real scheduling.

We should further cleanup the passes and restrict type and
representation information usage to appropriate parts of the pipeline.

R=jarin@chromium.org

Committed: https://crrev.com/5e11acc9dc28fedee6c777b27a0730ef2607ee11
Cr-Commit-Position: refs/heads/master@{#35702}
==========

[commit-bot: I haz the power, 2016-04-22 19:14:41]

Patchset 1 (id:??) landed as
https://crrev.com/5e11acc9dc28fedee6c777b27a0730ef2607ee11
Cr-Commit-Position: refs/heads/master@{#35702}