X87: fix the deoptimization issue.

X87: fix the deoptimization issue.

       On X87 the count of double register number is landed on the top
       of x87 register stack for deoptimization. (chunyang.dai@intle.com)

R=weiliang.lin@intel.com
BUG=

Committed: https://crrev.com/a080d4c50c00ec47229f44960bc79e6d931164b3
Cr-Commit-Position: refs/heads/master@{#31728}

[Weiliang, 2015-11-03 03:35:46]

The CQ bit was checked by weiliang.lin@intel.com

[Weiliang, 2015-11-03 03:35:47]

lgtm

[commit-bot: I haz the power, 2015-11-03 03:35:58]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1411223010/40001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1411223010/40001

[zhengxing.li, 2015-11-03 04:28:20]

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

[zhengxing.li, 2015-11-03 04:28:20]

The patchset sent to the CQ was uploaded after l-g-t-m from
weiliang.lin@intel.com
Link to the patchset: https://codereview.chromium.org/1411223010/#ps60001
(title: " ")

[zhengxing.li, 2015-11-03 04:28:23]

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

[zhengxing.li, 2015-11-03 04:35:12]

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

[commit-bot: I haz the power, 2015-11-03 04:35:15]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1411223010/60001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1411223010/60001

[commit-bot: I haz the power, 2015-11-03 05:01:38]

Committed patchset #4 (id:60001)

[commit-bot: I haz the power, 2015-11-03 05:02:11]

Patchset 4 (id:??) landed as
https://crrev.com/a080d4c50c00ec47229f44960bc79e6d931164b3
Cr-Commit-Position: refs/heads/master@{#31728}