X87: Preserve argument count for calls.

X87: Preserve argument count for calls.

  port 5de27c343bbf898ca87246caa1e83e533ec44561(r33865)

  original commit message:
  Calls use registers for target, new_target and argument count.
  We don't always respect argument count. It didn't bite us in the past
  because the code paths where we clobbered it never used it, though
  in future it could be an issue.

BUG=

Committed: https://crrev.com/63a59fa34196a533defbb4ab5472a5bee5ffa38e
Cr-Commit-Position: refs/heads/master@{#33984}

[zhengxing.li, 2016-02-15 06:57:39]

zhengxing.li@intel.com changed reviewers:
+ chunyang.dai@intel.com, mvstanton@chromium.org, weiliang.lin@intel.com

[zhengxing.li, 2016-02-15 06:57:39]

PTAL, thanks!

[Weiliang, 2016-02-15 09:15:27]

lgtm

[zhengxing.li, 2016-02-15 09:16:30]

The CQ bit was checked by zhengxing.li@intel.com

[commit-bot: I haz the power, 2016-02-15 09:16:33]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1698823002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1698823002/1

[commit-bot: I haz the power, 2016-02-15 09:45:59]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-02-15 09:46:28]

Description was changed from

==========
X87: Preserve argument count for calls.

  port 5de27c343bbf898ca87246caa1e83e533ec44561(r33865)

  original commit message:
  Calls use registers for target, new_target and argument count.
  We don't always respect argument count. It didn't bite us in the past
  because the code paths where we clobbered it never used it, though
  in future it could be an issue.

BUG=
==========

to

==========
X87: Preserve argument count for calls.

  port 5de27c343bbf898ca87246caa1e83e533ec44561(r33865)

  original commit message:
  Calls use registers for target, new_target and argument count.
  We don't always respect argument count. It didn't bite us in the past
  because the code paths where we clobbered it never used it, though
  in future it could be an issue.

BUG=

Committed: https://crrev.com/63a59fa34196a533defbb4ab5472a5bee5ffa38e
Cr-Commit-Position: refs/heads/master@{#33984}
==========

[commit-bot: I haz the power, 2016-02-15 09:46:29]

Patchset 1 (id:??) landed as
https://crrev.com/63a59fa34196a533defbb4ab5472a5bee5ffa38e
Cr-Commit-Position: refs/heads/master@{#33984}