Revert of [turbofan] Constant propagation for JumpIfFalse/JumpIfTrue.

Revert of [turbofan] Constant propagation for JumpIfFalse/JumpIfTrue. (patchset #4 id:60001 of https://codereview.chromium.org/2666283002/ )

Reason for revert:
Breaks win64 it seems.

Original issue's description:
> [turbofan] Constant propagation for JumpIfFalse/JumpIfTrue.
> 
> The JumpIfFalse and JumpIfTrue bytecodes test the accumulator, and
> branch based on whether the accumulator is true or false (no other
> value allowed, and in fact TurboFan would blow up if you would pass
> anything else, since Branch operator can only deal with Boolean).
> So for either branch we know exactly the value of the accumulator,
> and we can update the environment to this constant value instead.
> 
> This helps to avoid the useless bit materialization that currently
> happens when || or && is being used in a value context.
> 
> R=jarin@chromium.org
> BUG=v8:5267
> 
> Review-Url: https://codereview.chromium.org/2666283002
> Cr-Commit-Position: refs/heads/master@{#42843}
> Committed: https://chromium.googlesource.com/v8/v8/+/158ac9287193f315342ad31c38fe451620d176eb

TBR=jarin@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:5267
Review-Url: https://codereview.chromium.org/2668933002
Cr-Commit-Position: refs/heads/master@{#42845}
Committed: https://chromium.googlesource.com/v8/v8/+/d369c4dc47a161663e2c442e2f81ab0c0d363914

[Benedikt Meurer, 2017-02-01 10:35:56]

The CQ bit was checked by bmeurer@chromium.org

[Benedikt Meurer, 2017-02-01 10:35:57]

Created Revert of [turbofan] Constant propagation for JumpIfFalse/JumpIfTrue.

[commit-bot: I haz the power, 2017-02-01 10:36:04]

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, 2017-02-01 10:37:20]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1485945356656080, "parent_rev":
"ed3d888df695c738a11ed6a7d2432178402f4832", "commit_rev":
"d369c4dc47a161663e2c442e2f81ab0c0d363914"}

[commit-bot: I haz the power, 2017-02-01 10:37:27]

Description was changed from

==========
Revert of [turbofan] Constant propagation for JumpIfFalse/JumpIfTrue. (patchset
#4 id:60001 of https://codereview.chromium.org/2666283002/ )

Reason for revert:
Breaks win64 it seems.

Original issue's description:
> [turbofan] Constant propagation for JumpIfFalse/JumpIfTrue.
> 
> The JumpIfFalse and JumpIfTrue bytecodes test the accumulator, and
> branch based on whether the accumulator is true or false (no other
> value allowed, and in fact TurboFan would blow up if you would pass
> anything else, since Branch operator can only deal with Boolean).
> So for either branch we know exactly the value of the accumulator,
> and we can update the environment to this constant value instead.
> 
> This helps to avoid the useless bit materialization that currently
> happens when || or && is being used in a value context.
> 
> R=jarin@chromium.org
> BUG=v8:5267
> 
> Review-Url: https://codereview.chromium.org/2666283002
> Cr-Commit-Position: refs/heads/master@{#42843}
> Committed:
https://chromium.googlesource.com/v8/v8/+/158ac9287193f315342ad31c38fe451620d...

TBR=jarin@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:5267
==========

to

==========
Revert of [turbofan] Constant propagation for JumpIfFalse/JumpIfTrue. (patchset
#4 id:60001 of https://codereview.chromium.org/2666283002/ )

Reason for revert:
Breaks win64 it seems.

Original issue's description:
> [turbofan] Constant propagation for JumpIfFalse/JumpIfTrue.
> 
> The JumpIfFalse and JumpIfTrue bytecodes test the accumulator, and
> branch based on whether the accumulator is true or false (no other
> value allowed, and in fact TurboFan would blow up if you would pass
> anything else, since Branch operator can only deal with Boolean).
> So for either branch we know exactly the value of the accumulator,
> and we can update the environment to this constant value instead.
> 
> This helps to avoid the useless bit materialization that currently
> happens when || or && is being used in a value context.
> 
> R=jarin@chromium.org
> BUG=v8:5267
> 
> Review-Url: https://codereview.chromium.org/2666283002
> Cr-Commit-Position: refs/heads/master@{#42843}
> Committed:
https://chromium.googlesource.com/v8/v8/+/158ac9287193f315342ad31c38fe451620d...

TBR=jarin@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:5267

Review-Url: https://codereview.chromium.org/2668933002
Cr-Commit-Position: refs/heads/master@{#42845}
Committed:
https://chromium.googlesource.com/v8/v8/+/d369c4dc47a161663e2c442e2f81ab0c0d3...
==========

[commit-bot: I haz the power, 2017-02-01 10:37:28]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/v8/v8/+/d369c4dc47a161663e2c442e2f81ab0c0d3...