X87: [turbofan] Better and more sane support for tail calls

X87: [turbofan] Better and more sane support for tail calls

    port ff283f7ded84df5a5a77d088e37fd69cf6271a8c (r31987)

    original commit message:
    * Limit triggering of tail calls to explicit use of a new inline runtime
      function %_TailCall. %_TailCall works just like %_Call except for using
      tail-calling mechanics (currently only in TF).
    * Remove hack that recognized some specific usages of %_Call and converted them
      into tail calls.
    * Support tail calls for all calls where the number of callee stack parameters
      is less than or equal to the number of caller stack parameters.
    * Use the gap resolver to swizzle parameters and registers to tail calls.

BUG=

Committed: https://crrev.com/1dcf534c2c58309a4acedaf95404c38f13443a49
Cr-Commit-Position: refs/heads/master@{#32001}

[zhengxing.li, 2015-11-16 03:13:53]

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

[Weiliang, 2015-11-16 04:13:39]

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

[Weiliang, 2015-11-16 04:13:40]

lgtm

[commit-bot: I haz the power, 2015-11-16 04:13:45]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1445023002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1445023002/1

[commit-bot: I haz the power, 2015-11-16 04:31:18]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-11-16 04:31:36]

Patchset 1 (id:??) landed as
https://crrev.com/1dcf534c2c58309a4acedaf95404c38f13443a49
Cr-Commit-Position: refs/heads/master@{#32001}