X87: [builtins] Introduce proper base::ieee754::log.

X87: [builtins] Introduce proper base::ieee754::log.

  port d0c7775d7cfec5ae628ab9f3f00cff09b01930ac(r36880)

  original commit message:
  This switches Math.log to use an fdlibm based version of log, imported
  as base::ieee754::log, and use that consistently everywhere, i.e. change
  the Float64Log TurboFan operators on Intel to use the C++ implementation
  as well (same for Crankshaft).

BUG=

Committed: https://crrev.com/2d8738ed09edbdf4d92c5fca96ddfc2d5af22a21
Cr-Commit-Position: refs/heads/master@{#37242}

[zhengxing.li, 2016-06-21 06:18:57]

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

[zhengxing.li, 2016-06-21 06:18:58]

PTAL, thanks!

[Weiliang, 2016-06-24 08:34:59]

lgtm

lgtm

[zhengxing.li, 2016-06-24 08:36:38]

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

[commit-bot: I haz the power, 2016-06-24 08:36:45]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/2081653005/1

[commit-bot: I haz the power, 2016-06-24 09:04:36]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-06-24 09:06:04]

Description was changed from

==========
X87: [builtins] Introduce proper base::ieee754::log.

  port d0c7775d7cfec5ae628ab9f3f00cff09b01930ac(r36880)

  original commit message:
  This switches Math.log to use an fdlibm based version of log, imported
  as base::ieee754::log, and use that consistently everywhere, i.e. change
  the Float64Log TurboFan operators on Intel to use the C++ implementation
  as well (same for Crankshaft).

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

to

==========
X87: [builtins] Introduce proper base::ieee754::log.

  port d0c7775d7cfec5ae628ab9f3f00cff09b01930ac(r36880)

  original commit message:
  This switches Math.log to use an fdlibm based version of log, imported
  as base::ieee754::log, and use that consistently everywhere, i.e. change
  the Float64Log TurboFan operators on Intel to use the C++ implementation
  as well (same for Crankshaft).

BUG=

Committed: https://crrev.com/2d8738ed09edbdf4d92c5fca96ddfc2d5af22a21
Cr-Commit-Position: refs/heads/master@{#37242}
==========

[commit-bot: I haz the power, 2016-06-24 09:06:05]

Patchset 1 (id:??) landed as
https://crrev.com/2d8738ed09edbdf4d92c5fca96ddfc2d5af22a21
Cr-Commit-Position: refs/heads/master@{#37242}