[turbofan] Implemented the optional Float32RoundTiesEven operator.

[turbofan] Implemented the optional Float32RoundTiesEven operator.

The Float32RoundTiesEven operator rounds float32 numbers towards the nearest
integer. If the distance to two integers is the same, then the result is
the even integer. This is the default rounding mode of the ieee 754 floating
point standard.

I implemented the optional Float32RoundTiesEven operator on x64, ia32, arm, and arm64.

R=titzer@chromium.org

Committed: https://crrev.com/57117b8339fe990867c4b8cc2c66f029a1a58bc3
Cr-Commit-Position: refs/heads/master@{#32308}

[titzer, 2015-11-25 12:36:00]

On 2015/11/25 12:19:47, ahaas wrote:

lgtm

[ahaas, 2015-11-25 21:10:43]

The CQ bit was checked by ahaas@chromium.org

[ahaas, 2015-11-25 21:10:43]

The patchset sent to the CQ was uploaded after l-g-t-m from titzer@chromium.org
Link to the patchset: https://codereview.chromium.org/1477753002/#ps20001
(title: "Merging with the changed codebase")

[commit-bot: I haz the power, 2015-11-25 21:11:06]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1477753002/20001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1477753002/20001

[commit-bot: I haz the power, 2015-11-25 21:12:47]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2015-11-25 21:13:28]

Description was changed from

==========
[turbofan] Implemented the optional Float32RoundTiesEven operator.

The Float32RoundTiesEven operator rounds float32 numbers towards the nearest
integer. If the distance to two integers is the same, then the result is
the even integer. This is the default rounding mode of the ieee 754 floating
point standard.

I implemented the optional Float32RoundTiesEven operator on x64, ia32, arm, and
arm64.

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

to

==========
[turbofan] Implemented the optional Float32RoundTiesEven operator.

The Float32RoundTiesEven operator rounds float32 numbers towards the nearest
integer. If the distance to two integers is the same, then the result is
the even integer. This is the default rounding mode of the ieee 754 floating
point standard.

I implemented the optional Float32RoundTiesEven operator on x64, ia32, arm, and
arm64.

R=titzer@chromium.org

Committed: https://crrev.com/57117b8339fe990867c4b8cc2c66f029a1a58bc3
Cr-Commit-Position: refs/heads/master@{#32308}
==========

[commit-bot: I haz the power, 2015-11-25 21:13:28]

Patchset 2 (id:??) landed as
https://crrev.com/57117b8339fe990867c4b8cc2c66f029a1a58bc3
Cr-Commit-Position: refs/heads/master@{#32308}