Revert of [turbofan] ChangeFloat64ToTagged shouldn't canonicalize.

Revert of [turbofan] ChangeFloat64ToTagged shouldn't canonicalize. (patchset #3 id:40001 of https://codereview.chromium.org/2367593003/ )

Reason for revert:
Causes tree breakage:

https://build.chromium.org/p/client.v8/builders/V8%20Win64/builds/12916/steps/Check/logs/typedarray

Original issue's description:
> [turbofan] ChangeFloat64ToTagged shouldn't canonicalize.
>
> This matches current Crankshaft/fullcodegen behavior more closely and
> thus reduces the chances that we run into unnecessary polymorphism due
> to the field representation tracking in our object model.
>
> R=jarin@chromium.org
> BUG=v8:5267
>
> Committed: https://chromium.googlesource.com/v8/v8/+/6a939714e991ebf10d56ddbd2869325cca99c0ef

TBR=jarin@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:5267
Committed: https://crrev.com/c80ca79715b4e03c4513d4e4893789eeb3aba0af
Cr-Commit-Position: refs/heads/master@{#39657}

[Benedikt Meurer, 2016-09-23 11:23:32]

The CQ bit was checked by bmeurer@chromium.org

[Benedikt Meurer, 2016-09-23 11:23:32]

Created Revert of [turbofan] ChangeFloat64ToTagged shouldn't canonicalize.

[commit-bot: I haz the power, 2016-09-23 11:23:46]

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, 2016-09-23 11:24:06]

Description was changed from

==========
Revert of [turbofan] ChangeFloat64ToTagged shouldn't canonicalize. (patchset #3
id:40001 of https://codereview.chromium.org/2367593003/ )

Reason for revert:
Causes tree breakage:

https://build.chromium.org/p/client.v8/builders/V8%20Win64/builds/12916/steps...

Original issue's description:
> [turbofan] ChangeFloat64ToTagged shouldn't canonicalize.
> 
> This matches current Crankshaft/fullcodegen behavior more closely and
> thus reduces the chances that we run into unnecessary polymorphism due
> to the field representation tracking in our object model.
> 
> R=jarin@chromium.org
> BUG=v8:5267
> 
> Committed:
https://chromium.googlesource.com/v8/v8/+/6a939714e991ebf10d56ddbd2869325cca9...

TBR=jarin@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:5267
==========

to

==========
Revert of [turbofan] ChangeFloat64ToTagged shouldn't canonicalize. (patchset #3
id:40001 of https://codereview.chromium.org/2367593003/ )

Reason for revert:
Causes tree breakage:

https://build.chromium.org/p/client.v8/builders/V8%20Win64/builds/12916/steps...

Original issue's description:
> [turbofan] ChangeFloat64ToTagged shouldn't canonicalize.
> 
> This matches current Crankshaft/fullcodegen behavior more closely and
> thus reduces the chances that we run into unnecessary polymorphism due
> to the field representation tracking in our object model.
> 
> R=jarin@chromium.org
> BUG=v8:5267
> 
> Committed:
https://chromium.googlesource.com/v8/v8/+/6a939714e991ebf10d56ddbd2869325cca9...

TBR=jarin@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:5267
==========

[commit-bot: I haz the power, 2016-09-23 11:24:07]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-09-23 11:24:21]

Description was changed from

==========
Revert of [turbofan] ChangeFloat64ToTagged shouldn't canonicalize. (patchset #3
id:40001 of https://codereview.chromium.org/2367593003/ )

Reason for revert:
Causes tree breakage:

https://build.chromium.org/p/client.v8/builders/V8%20Win64/builds/12916/steps...

Original issue's description:
> [turbofan] ChangeFloat64ToTagged shouldn't canonicalize.
> 
> This matches current Crankshaft/fullcodegen behavior more closely and
> thus reduces the chances that we run into unnecessary polymorphism due
> to the field representation tracking in our object model.
> 
> R=jarin@chromium.org
> BUG=v8:5267
> 
> Committed:
https://chromium.googlesource.com/v8/v8/+/6a939714e991ebf10d56ddbd2869325cca9...

TBR=jarin@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:5267
==========

to

==========
Revert of [turbofan] ChangeFloat64ToTagged shouldn't canonicalize. (patchset #3
id:40001 of https://codereview.chromium.org/2367593003/ )

Reason for revert:
Causes tree breakage:

https://build.chromium.org/p/client.v8/builders/V8%20Win64/builds/12916/steps...

Original issue's description:
> [turbofan] ChangeFloat64ToTagged shouldn't canonicalize.
>
> This matches current Crankshaft/fullcodegen behavior more closely and
> thus reduces the chances that we run into unnecessary polymorphism due
> to the field representation tracking in our object model.
>
> R=jarin@chromium.org
> BUG=v8:5267
>
> Committed:
https://chromium.googlesource.com/v8/v8/+/6a939714e991ebf10d56ddbd2869325cca9...

TBR=jarin@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:5267

Committed: https://crrev.com/c80ca79715b4e03c4513d4e4893789eeb3aba0af
Cr-Commit-Position: refs/heads/master@{#39657}
==========

[commit-bot: I haz the power, 2016-09-23 11:24:21]

Patchset 1 (id:??) landed as
https://crrev.com/c80ca79715b4e03c4513d4e4893789eeb3aba0af
Cr-Commit-Position: refs/heads/master@{#39657}