[turbofan] Float32Constant/Float64Constant cannot occur in JS level graph.

[turbofan] Float32Constant/Float64Constant cannot occur in JS level graph.

Now that the hole NaN is no longer represented as Float64Constant early
on, we should never see such a constant node in any JS-level graph, but
we will only see them after representation selection. Change Typer and
SimplifiedLowering appropriately (and fix the invalid tests).

R=jarin@chromium.org
BUG=v8:5267
Committed: https://crrev.com/83e14103203f581b9b741d2b0612374e88855625
Cr-Commit-Position: refs/heads/master@{#39063}

[Benedikt Meurer, 2016-09-01 05:19:15]

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

[commit-bot: I haz the power, 2016-09-01 05:19:24]

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

[Benedikt Meurer, 2016-09-01 05:20:05]

Hey Jaro,

Now we can cleanup the Float32/Float64Constant mess further and do proper
checking. Please take a look.

Thanks,
Benedikt

[commit-bot: I haz the power, 2016-09-01 05:41:53]

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

[commit-bot: I haz the power, 2016-09-01 05:41:54]

Dry run: This issue passed the CQ dry run.

[Jarin, 2016-09-01 05:44:48]

lgtm

[Benedikt Meurer, 2016-09-01 05:59:45]

The CQ bit was checked by bmeurer@chromium.org

[commit-bot: I haz the power, 2016-09-01 05:59:56]

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

[commit-bot: I haz the power, 2016-09-01 05:59:57]

This CL has an open dependency (Issue 2303643002 Patch 1). Please resolve the
dependency and try again.
If you are sure that there is no real dependency, please use one of the options
listed in https://goo.gl/9Es4OR to land the CL.

[Benedikt Meurer, 2016-09-01 06:24:16]

The CQ bit was checked by bmeurer@chromium.org

[commit-bot: I haz the power, 2016-09-01 06:24:26]

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, 2016-09-01 06:26:48]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-09-01 06:27:16]

Description was changed from

==========
[turbofan] Float32Constant/Float64Constant cannot occur in JS level graph.

Now that the hole NaN is no longer represented as Float64Constant early
on, we should never see such a constant node in any JS-level graph, but
we will only see them after representation selection. Change Typer and
SimplifiedLowering appropriately (and fix the invalid tests).

R=jarin@chromium.org
BUG=v8:5267
==========

to

==========
[turbofan] Float32Constant/Float64Constant cannot occur in JS level graph.

Now that the hole NaN is no longer represented as Float64Constant early
on, we should never see such a constant node in any JS-level graph, but
we will only see them after representation selection. Change Typer and
SimplifiedLowering appropriately (and fix the invalid tests).

R=jarin@chromium.org
BUG=v8:5267

Committed: https://crrev.com/83e14103203f581b9b741d2b0612374e88855625
Cr-Commit-Position: refs/heads/master@{#39063}
==========

[commit-bot: I haz the power, 2016-09-01 06:27:17]

Patchset 1 (id:??) landed as
https://crrev.com/83e14103203f581b9b741d2b0612374e88855625
Cr-Commit-Position: refs/heads/master@{#39063}