[turbofan] Implemented the TruncateFloat32ToUint64 TurboFan operator.

[turbofan] Implemented the TruncateFloat32ToUint64 TurboFan operator.

The TruncateFloat32ToUint64 operator converts a float32 to an uint64 using
round-to-zero rounding mode. If the input value is outside uint64 range, then
the result depends on the architecture. I provide an implementation for x64 and
arm64.

R=titzer@chromium.org

Committed: https://crrev.com/68cc0be2ad75c698d08d6672b69ad9649418cd9f
Cr-Commit-Position: refs/heads/master@{#32379}

[ahaas, 2015-11-26 18:39:35]

ahaas@chromium.org changed reviewers:
+ v8-arm-ports@googlegroups.com

[titzer, 2015-11-27 14:32:49]

On 2015/11/26 18:38:38, ahaas wrote:

lgtm

[ahaas, 2015-11-27 14:34:03]

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

[commit-bot: I haz the power, 2015-11-27 14:34:10]

Dry run: CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1479713003/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1479713003/1

[commit-bot: I haz the power, 2015-11-27 14:35:58]

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

[commit-bot: I haz the power, 2015-11-27 14:35:58]

Dry run: This issue passed the CQ dry run.

[ahaas, 2015-11-27 14:59:53]

The CQ bit was checked by ahaas@chromium.org

[commit-bot: I haz the power, 2015-11-27 15:00:00]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1479713003/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1479713003/1

[commit-bot: I haz the power, 2015-11-27 15:01:40]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-11-27 15:01:54]

Description was changed from

==========
[turbofan] Implemented the TruncateFloat32ToUint64 TurboFan operator.

The TruncateFloat32ToUint64 operator converts a float32 to an uint64 using
round-to-zero rounding mode. If the input value is outside uint64 range, then
the result depends on the architecture. I provide an implementation for x64 and
arm64.

R=titzer@chromium.org
==========

to

==========
[turbofan] Implemented the TruncateFloat32ToUint64 TurboFan operator.

The TruncateFloat32ToUint64 operator converts a float32 to an uint64 using
round-to-zero rounding mode. If the input value is outside uint64 range, then
the result depends on the architecture. I provide an implementation for x64 and
arm64.

R=titzer@chromium.org

Committed: https://crrev.com/68cc0be2ad75c698d08d6672b69ad9649418cd9f
Cr-Commit-Position: refs/heads/master@{#32379}
==========

[commit-bot: I haz the power, 2015-11-27 15:01:55]

Patchset 1 (id:??) landed as
https://crrev.com/68cc0be2ad75c698d08d6672b69ad9649418cd9f
Cr-Commit-Position: refs/heads/master@{#32379}