[turbofan] Moved split edge form validation lower

[turbofan] Moved split edge form validation lower.

There are multiple ways we may construct an instruction sequence.
Moved the split edge form validation where they must all eventually
chokepoint to - the register allocation pipeline, which is also the main
and first consumer of this property.

BUG=

Committed: https://crrev.com/da81f841f4bae14fe522349f6679e72d24c5c7d4
Cr-Commit-Position: refs/heads/master@{#34903}

[Mircea Trofin, 2016-03-18 16:42:16]

Description was changed from

==========
[turbofan] moved split edge form validation closer to its main consumer

BUG=
==========

to

==========
[turbofan] Moved split edge form validation lower.

There are multiple ways we may construct an instruction sequence.
Moved the split edge form validation where they must all eventually 
chokepoint to - the register allocation pipeline, which is also the main
and first consumer of this property. 

BUG=
==========

[Mircea Trofin, 2016-03-18 16:42:16]

mtrofin@chromium.org changed reviewers:
+ danno@chromium.org

[danno, 2016-03-18 16:45:09]

lgtm

[Mircea Trofin, 2016-03-18 17:18:35]

The CQ bit was checked by mtrofin@chromium.org

[commit-bot: I haz the power, 2016-03-18 17:18:47]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1810293003/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1810293003/1

[commit-bot: I haz the power, 2016-03-18 17:20:37]

Description was changed from

==========
[turbofan] Moved split edge form validation lower.

There are multiple ways we may construct an instruction sequence.
Moved the split edge form validation where they must all eventually 
chokepoint to - the register allocation pipeline, which is also the main
and first consumer of this property. 

BUG=
==========

to

==========
[turbofan] Moved split edge form validation lower.

There are multiple ways we may construct an instruction sequence.
Moved the split edge form validation where they must all eventually 
chokepoint to - the register allocation pipeline, which is also the main
and first consumer of this property. 

BUG=
==========

[commit-bot: I haz the power, 2016-03-18 17:20:38]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-03-18 17:22:37]

Description was changed from

==========
[turbofan] Moved split edge form validation lower.

There are multiple ways we may construct an instruction sequence.
Moved the split edge form validation where they must all eventually 
chokepoint to - the register allocation pipeline, which is also the main
and first consumer of this property. 

BUG=
==========

to

==========
[turbofan] Moved split edge form validation lower.

There are multiple ways we may construct an instruction sequence.
Moved the split edge form validation where they must all eventually
chokepoint to - the register allocation pipeline, which is also the main
and first consumer of this property.

BUG=

Committed: https://crrev.com/da81f841f4bae14fe522349f6679e72d24c5c7d4
Cr-Commit-Position: refs/heads/master@{#34903}
==========

[commit-bot: I haz the power, 2016-03-18 17:22:38]

Patchset 1 (id:??) landed as
https://crrev.com/da81f841f4bae14fe522349f6679e72d24c5c7d4
Cr-Commit-Position: refs/heads/master@{#34903}