X87: Revert of [turbofan] Improve codegen for 8- and 16-bit memory comparisons on Intel platforms (…

X87: Revert of [turbofan] Improve codegen for 8- and 16-bit memory comparisons on Intel platforms (patchset #3 id:40001 of https://codereview.chromium.org/2605863002/ ).

  port c16ca32e5fcacd8e3e08e25a1dd7053015fb43ee (r42092)

  original commit message:
  Reason for revert:
  Breaks wasm benchmark (http://crbug.com/v8/5798).

  Original issue's description:
  > [turbofan] Improve codegen for 8- and 16-bit memory comparisons on Intel platforms
  >
  > Recognize and emit in-memory comparisons of 8-bit and 16-bit values with
  > immediate values that fit.
  >
  > LOG=N
  > R=epertoso@chromium.org
  >
  > Review-Url: https://codereview.chromium.org/2605863002
  > Cr-Commit-Position: refs/heads/master@{#41971}
  > Committed: https://chromium.googlesource.com/v8/v8/+/be11812c53ff6c8ce320887bc76a3b60d8103695

BUG=

Review-Url: https://codereview.chromium.org/2622463002
Cr-Commit-Position: refs/heads/master@{#42126}
Committed: https://chromium.googlesource.com/v8/v8/+/8b900b8ba968594301e81ffe55d671acb5dc0c4e

[zhengxing.li, 2017-01-09 03:13:34]

zhengxing.li@intel.com changed reviewers:
+ chunyang.dai@intel.com, epertoso@chromium.org

[zhengxing.li, 2017-01-09 03:13:34]

PTAL, thanks!

[chunyang.dai, 2017-01-09 08:39:58]

On 2017/01/09 03:13:34, zhengxing.li wrote:
> PTAL, thanks!

LGTM.

thanks

[zhengxing.li, 2017-01-09 08:40:52]

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

[commit-bot: I haz the power, 2017-01-09 08:40:57]

CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2017-01-09 09:06:06]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1483951252579230, "parent_rev":
"bd62841eb9ba58d7aaf5c06d718ec05b7fefe2bc", "commit_rev":
"8b900b8ba968594301e81ffe55d671acb5dc0c4e"}

[commit-bot: I haz the power, 2017-01-09 09:06:11]

Description was changed from

==========
X87: Revert of [turbofan] Improve codegen for 8- and 16-bit memory comparisons
on Intel platforms (patchset #3 id:40001 of
https://codereview.chromium.org/2605863002/ ).

  port c16ca32e5fcacd8e3e08e25a1dd7053015fb43ee (r42092)

  original commit message:
  Reason for revert:
  Breaks wasm benchmark (http://crbug.com/v8/5798).

  Original issue's description:
  > [turbofan] Improve codegen for 8- and 16-bit memory comparisons on Intel
platforms
  >
  > Recognize and emit in-memory comparisons of 8-bit and 16-bit values with
  > immediate values that fit.
  >
  > LOG=N
  > R=epertoso@chromium.org
  >
  > Review-Url: https://codereview.chromium.org/2605863002
  > Cr-Commit-Position: refs/heads/master@{#41971}
  > Committed:
https://chromium.googlesource.com/v8/v8/+/be11812c53ff6c8ce320887bc76a3b60d81...

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

to

==========
X87: Revert of [turbofan] Improve codegen for 8- and 16-bit memory comparisons
on Intel platforms (patchset #3 id:40001 of
https://codereview.chromium.org/2605863002/ ).

  port c16ca32e5fcacd8e3e08e25a1dd7053015fb43ee (r42092)

  original commit message:
  Reason for revert:
  Breaks wasm benchmark (http://crbug.com/v8/5798).

  Original issue's description:
  > [turbofan] Improve codegen for 8- and 16-bit memory comparisons on Intel
platforms
  >
  > Recognize and emit in-memory comparisons of 8-bit and 16-bit values with
  > immediate values that fit.
  >
  > LOG=N
  > R=epertoso@chromium.org
  >
  > Review-Url: https://codereview.chromium.org/2605863002
  > Cr-Commit-Position: refs/heads/master@{#41971}
  > Committed:
https://chromium.googlesource.com/v8/v8/+/be11812c53ff6c8ce320887bc76a3b60d81...

BUG=

Review-Url: https://codereview.chromium.org/2622463002
Cr-Commit-Position: refs/heads/master@{#42126}
Committed:
https://chromium.googlesource.com/v8/v8/+/8b900b8ba968594301e81ffe55d671acb5d...
==========

[commit-bot: I haz the power, 2017-01-09 09:06:12]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/v8/v8/+/8b900b8ba968594301e81ffe55d671acb5d...