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

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/ )

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

TBR=danno@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.

Review-Url: https://codereview.chromium.org/2618443003
Cr-Commit-Position: refs/heads/master@{#42092}
Committed: https://chromium.googlesource.com/v8/v8/+/c16ca32e5fcacd8e3e08e25a1dd7053015fb43ee

[epertoso, 2017-01-05 14:34:00]

The CQ bit was checked by epertoso@chromium.org

[epertoso, 2017-01-05 14:34:01]

Created Revert of [turbofan] Improve codegen for 8- and 16-bit memory
comparisons on Intel platforms

[commit-bot: I haz the power, 2017-01-05 14:34:08]

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, 2017-01-05 14:58:02]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1483626840781230, "parent_rev":
"a5440323a26c65a6d57dcb2c853e1b449bf1a78c", "commit_rev":
"c16ca32e5fcacd8e3e08e25a1dd7053015fb43ee"}

[commit-bot: I haz the power, 2017-01-05 14:58:07]

Description was changed from

==========
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/ )

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...

TBR=danno@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
==========

to

==========
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/ )

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...

TBR=danno@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.

Review-Url: https://codereview.chromium.org/2618443003
Cr-Commit-Position: refs/heads/master@{#42092}
Committed:
https://chromium.googlesource.com/v8/v8/+/c16ca32e5fcacd8e3e08e25a1dd7053015f...
==========

[commit-bot: I haz the power, 2017-01-05 14:58:07]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/v8/v8/+/c16ca32e5fcacd8e3e08e25a1dd7053015f...