X87: [compiler] Drop the CompareNilIC.

X87: [compiler] Drop the CompareNilIC.

  port 666aec0348c8793e61c8633dee7ad29a514239ba (r34237)

  original commit message:
  Since both null and undefined are also marked as undetectable now, we
  can just test that bit instead of having the CompareNilIC try to collect
  feedback to speed up the general case (without the undetectable bit
  being used).

  Drive-by-fix: Update the type system to match the new handling of
  undetectable in the runtime.

BUG=

Committed: https://crrev.com/b915411c29d38ceda842bdceab0c70a7c3760850
Cr-Commit-Position: refs/heads/master@{#34270}

[zhengxing.li, 2016-02-25 02:18:07]

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

[zhengxing.li, 2016-02-25 02:18:08]

PTAL, thanks!

[Weiliang, 2016-02-25 03:21:44]

lgtm

[zhengxing.li, 2016-02-25 05:42:53]

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

[commit-bot: I haz the power, 2016-02-25 05:42:59]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1731383003/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1731383003/1

[commit-bot: I haz the power, 2016-02-25 06:01:00]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-02-25 06:02:29]

Description was changed from

==========
X87: [compiler] Drop the CompareNilIC.

  port 666aec0348c8793e61c8633dee7ad29a514239ba (r34237)

  original commit message:
  Since both null and undefined are also marked as undetectable now, we
  can just test that bit instead of having the CompareNilIC try to collect
  feedback to speed up the general case (without the undetectable bit
  being used).

  Drive-by-fix: Update the type system to match the new handling of
  undetectable in the runtime.

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

to

==========
X87: [compiler] Drop the CompareNilIC.

  port 666aec0348c8793e61c8633dee7ad29a514239ba (r34237)

  original commit message:
  Since both null and undefined are also marked as undetectable now, we
  can just test that bit instead of having the CompareNilIC try to collect
  feedback to speed up the general case (without the undetectable bit
  being used).

  Drive-by-fix: Update the type system to match the new handling of
  undetectable in the runtime.

BUG=

Committed: https://crrev.com/b915411c29d38ceda842bdceab0c70a7c3760850
Cr-Commit-Position: refs/heads/master@{#34270}
==========

[commit-bot: I haz the power, 2016-02-25 06:02:30]

Patchset 1 (id:??) landed as
https://crrev.com/b915411c29d38ceda842bdceab0c70a7c3760850
Cr-Commit-Position: refs/heads/master@{#34270}