[arm64] The ubfx instruction can be used with a mask-width=64

[arm64] The ubfx instruction can be used with a mask-width=64

The code-generator used i.InputInt6 to get the mask-width from the
instruction. However, thereby 64 got wrapped to 0, which is an invalid
mask width. I changed the i.InputInt6 to an i.InputInt32, which should
be okay because the mask-width comes from base::bits::CountPopulation64.

BUG=v8:6122
R=bmeurer@chromium.org, v8-arm-ports@googlegroups.com

Review-Url: https://codereview.chromium.org/2755373002
Cr-Commit-Position: refs/heads/master@{#43927}
Committed: https://chromium.googlesource.com/v8/v8/+/086ec2bd8d0ff97e0ea8f423d40fd13a5238038f

[ahaas, 2017-03-20 08:49:26]

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

[commit-bot: I haz the power, 2017-03-20 08:49:28]

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

[Benedikt Meurer, 2017-03-20 09:12:22]

LGTM, thanks!

[commit-bot: I haz the power, 2017-03-20 09:13:43]

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

[commit-bot: I haz the power, 2017-03-20 09:13:44]

Dry run: This issue passed the CQ dry run.

[ahaas, 2017-03-20 09:40:56]

The CQ bit was checked by ahaas@chromium.org

[commit-bot: I haz the power, 2017-03-20 09:41:00]

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, 2017-03-20 09:42:38]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1490002856663550, "parent_rev":
"515c7a4ea06605203798ea1574d88f8547cab074", "commit_rev":
"086ec2bd8d0ff97e0ea8f423d40fd13a5238038f"}

[commit-bot: I haz the power, 2017-03-20 09:42:45]

Description was changed from

==========
[arm64] The ubfx instruction can be used with a mask-width=64

The code-generator used i.InputInt6 to get the mask-width from the
instruction. However, thereby 64 got wrapped to 0, which is an invalid
mask width. I changed the i.InputInt6 to an i.InputInt32, which should
be okay because the mask-width comes from base::bits::CountPopulation64.

BUG=v8:6122
R=bmeurer@chromium.org, v8-arm-ports@googlegroups.com
==========

to

==========
[arm64] The ubfx instruction can be used with a mask-width=64

The code-generator used i.InputInt6 to get the mask-width from the
instruction. However, thereby 64 got wrapped to 0, which is an invalid
mask width. I changed the i.InputInt6 to an i.InputInt32, which should
be okay because the mask-width comes from base::bits::CountPopulation64.

BUG=v8:6122
R=bmeurer@chromium.org, v8-arm-ports@googlegroups.com

Review-Url: https://codereview.chromium.org/2755373002
Cr-Commit-Position: refs/heads/master@{#43927}
Committed:
https://chromium.googlesource.com/v8/v8/+/086ec2bd8d0ff97e0ea8f423d40fd13a523...
==========

[commit-bot: I haz the power, 2017-03-20 09:42:46]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/v8/v8/+/086ec2bd8d0ff97e0ea8f423d40fd13a523...