[turbofan] Remove left-over change bits from ChangeLowering.

[turbofan] Remove left-over change bits from ChangeLowering.

Now ChangeLowering is only concerned with lowering memory access and
allocation operations, and all changes are consistently lowered during
the effect/control linearization pass. The next step is to move the
left over lowerings to a pass dedicated to eliminate redundant loads and
stores, eliminate write barriers, fold and inline allocations.

Drive-by-fix: Rename ChangeBitToBool to ChangeBitToTagged,
ChangeBoolToBit to ChangeTaggedToBit, and ChangeInt31ToTagged to
ChangeInt31ToTaggedSigned for consistency.

CQ_INCLUDE_TRYBOTS=tryserver.v8:v8_linux64_tsan_rel

Committed: https://crrev.com/ceca5ae308bddda166651c654f96d71d74f617d0
Cr-Commit-Position: refs/heads/master@{#35924}

Committed: https://crrev.com/4aa02441dadec2b1cf60f69ba5c30a4a89df576b
Cr-Commit-Position: refs/heads/master@{#35929}

[Benedikt Meurer, 2016-05-02 06:18:52]

The CQ bit was checked by bmeurer@chromium.org to run a CQ dry run

[commit-bot: I haz the power, 2016-05-02 06:18:56]

Dry run: CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1941673002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1941673002/1

[commit-bot: I haz the power, 2016-05-02 06:22:53]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2016-05-02 06:22:54]

Dry run: This issue passed the CQ dry run.

[Benedikt Meurer, 2016-05-02 06:39:22]

Description was changed from

==========
[turbofan] Remove left-over change bits from ChangeLowering.

Now ChangeLowering is only concerned with lowering memory access and
allocation operations, and all changes are consistently lowered during
the effect/control linearization pass. The next step is to move the
left over lowerings to a pass dedicated to eliminate redundant loads and
stores, eliminate write barriers, fold and inline allocations.

Drive-by-fix: Rename ChangeBitToBool to ChangeBitToTagged,
ChangeBoolToBit to ChangeTaggedToBit, and ChangeInt31ToTagged to
ChangeInt31ToTaggedSigned for consistency.
==========

to

==========
[turbofan] Remove left-over change bits from ChangeLowering.

Now ChangeLowering is only concerned with lowering memory access and
allocation operations, and all changes are consistently lowered during
the effect/control linearization pass. The next step is to move the
left over lowerings to a pass dedicated to eliminate redundant loads and
stores, eliminate write barriers, fold and inline allocations.

Also remove the atomic regions now that we wire everything into the
effect chain properly. This is an important step towards allocation
inlining.

Drive-by-fix: Rename ChangeBitToBool to ChangeBitToTagged,
ChangeBoolToBit to ChangeTaggedToBit, and ChangeInt31ToTagged to
ChangeInt31ToTaggedSigned for consistency.
==========

[Benedikt Meurer, 2016-05-02 06:39:42]

Description was changed from

==========
[turbofan] Remove left-over change bits from ChangeLowering.

Now ChangeLowering is only concerned with lowering memory access and
allocation operations, and all changes are consistently lowered during
the effect/control linearization pass. The next step is to move the
left over lowerings to a pass dedicated to eliminate redundant loads and
stores, eliminate write barriers, fold and inline allocations.

Also remove the atomic regions now that we wire everything into the
effect chain properly. This is an important step towards allocation
inlining.

Drive-by-fix: Rename ChangeBitToBool to ChangeBitToTagged,
ChangeBoolToBit to ChangeTaggedToBit, and ChangeInt31ToTagged to
ChangeInt31ToTaggedSigned for consistency.
==========

to

==========
[turbofan] Remove left-over change bits from ChangeLowering.

Now ChangeLowering is only concerned with lowering memory access and
allocation operations, and all changes are consistently lowered during
the effect/control linearization pass. The next step is to move the
left over lowerings to a pass dedicated to eliminate redundant loads and
stores, eliminate write barriers, fold and inline allocations.

Also remove the atomic regions now that we wire everything into the
effect chain properly. This is an important step towards allocation
inlining.

Drive-by-fix: Rename ChangeBitToBool to ChangeBitToTagged,
ChangeBoolToBit to ChangeTaggedToBit, and ChangeInt31ToTagged to
ChangeInt31ToTaggedSigned for consistency.

CQ_INCLUDE_TRYBOTS=tryserver.v8:v8_linux64_tsan_rel
==========

[Igor Sheludko, 2016-05-02 07:39:00]

ishell@chromium.org changed reviewers:
+ ishell@chromium.org

[Igor Sheludko, 2016-05-02 07:39:01]

lgtm

[Benedikt Meurer, 2016-05-02 08:18:29]

The CQ bit was checked by bmeurer@chromium.org

[commit-bot: I haz the power, 2016-05-02 08:18:37]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1941673002/20001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1941673002/20001

[commit-bot: I haz the power, 2016-05-02 08:41:31]

Description was changed from

==========
[turbofan] Remove left-over change bits from ChangeLowering.

Now ChangeLowering is only concerned with lowering memory access and
allocation operations, and all changes are consistently lowered during
the effect/control linearization pass. The next step is to move the
left over lowerings to a pass dedicated to eliminate redundant loads and
stores, eliminate write barriers, fold and inline allocations.

Also remove the atomic regions now that we wire everything into the
effect chain properly. This is an important step towards allocation
inlining.

Drive-by-fix: Rename ChangeBitToBool to ChangeBitToTagged,
ChangeBoolToBit to ChangeTaggedToBit, and ChangeInt31ToTagged to
ChangeInt31ToTaggedSigned for consistency.

CQ_INCLUDE_TRYBOTS=tryserver.v8:v8_linux64_tsan_rel
==========

to

==========
[turbofan] Remove left-over change bits from ChangeLowering.

Now ChangeLowering is only concerned with lowering memory access and
allocation operations, and all changes are consistently lowered during
the effect/control linearization pass. The next step is to move the
left over lowerings to a pass dedicated to eliminate redundant loads and
stores, eliminate write barriers, fold and inline allocations.

Also remove the atomic regions now that we wire everything into the
effect chain properly. This is an important step towards allocation
inlining.

Drive-by-fix: Rename ChangeBitToBool to ChangeBitToTagged,
ChangeBoolToBit to ChangeTaggedToBit, and ChangeInt31ToTagged to
ChangeInt31ToTaggedSigned for consistency.

CQ_INCLUDE_TRYBOTS=tryserver.v8:v8_linux64_tsan_rel
==========

[commit-bot: I haz the power, 2016-05-02 08:41:32]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2016-05-02 08:42:11]

Description was changed from

==========
[turbofan] Remove left-over change bits from ChangeLowering.

Now ChangeLowering is only concerned with lowering memory access and
allocation operations, and all changes are consistently lowered during
the effect/control linearization pass. The next step is to move the
left over lowerings to a pass dedicated to eliminate redundant loads and
stores, eliminate write barriers, fold and inline allocations.

Also remove the atomic regions now that we wire everything into the
effect chain properly. This is an important step towards allocation
inlining.

Drive-by-fix: Rename ChangeBitToBool to ChangeBitToTagged,
ChangeBoolToBit to ChangeTaggedToBit, and ChangeInt31ToTagged to
ChangeInt31ToTaggedSigned for consistency.

CQ_INCLUDE_TRYBOTS=tryserver.v8:v8_linux64_tsan_rel
==========

to

==========
[turbofan] Remove left-over change bits from ChangeLowering.

Now ChangeLowering is only concerned with lowering memory access and
allocation operations, and all changes are consistently lowered during
the effect/control linearization pass. The next step is to move the
left over lowerings to a pass dedicated to eliminate redundant loads and
stores, eliminate write barriers, fold and inline allocations.

Also remove the atomic regions now that we wire everything into the
effect chain properly. This is an important step towards allocation
inlining.

Drive-by-fix: Rename ChangeBitToBool to ChangeBitToTagged,
ChangeBoolToBit to ChangeTaggedToBit, and ChangeInt31ToTagged to
ChangeInt31ToTaggedSigned for consistency.

CQ_INCLUDE_TRYBOTS=tryserver.v8:v8_linux64_tsan_rel

Committed: https://crrev.com/ceca5ae308bddda166651c654f96d71d74f617d0
Cr-Commit-Position: refs/heads/master@{#35924}
==========

[commit-bot: I haz the power, 2016-05-02 08:42:12]

Patchset 2 (id:??) landed as
https://crrev.com/ceca5ae308bddda166651c654f96d71d74f617d0
Cr-Commit-Position: refs/heads/master@{#35924}

[Michael Achenbach, 2016-05-02 09:28:30]

A revert of this CL (patchset #2 id:20001) has been created in
https://codereview.chromium.org/1942733002/ by machenbach@chromium.org.

The reason for reverting is: [Sheriff] Breaks mac gc stress:
https://build.chromium.org/p/client.v8/builders/V8%20Mac%20GC%20Stress/builds....

[Benedikt Meurer, 2016-05-02 09:55:04]

Description was changed from

==========
[turbofan] Remove left-over change bits from ChangeLowering.

Now ChangeLowering is only concerned with lowering memory access and
allocation operations, and all changes are consistently lowered during
the effect/control linearization pass. The next step is to move the
left over lowerings to a pass dedicated to eliminate redundant loads and
stores, eliminate write barriers, fold and inline allocations.

Also remove the atomic regions now that we wire everything into the
effect chain properly. This is an important step towards allocation
inlining.

Drive-by-fix: Rename ChangeBitToBool to ChangeBitToTagged,
ChangeBoolToBit to ChangeTaggedToBit, and ChangeInt31ToTagged to
ChangeInt31ToTaggedSigned for consistency.

CQ_INCLUDE_TRYBOTS=tryserver.v8:v8_linux64_tsan_rel

Committed: https://crrev.com/ceca5ae308bddda166651c654f96d71d74f617d0
Cr-Commit-Position: refs/heads/master@{#35924}
==========

to

==========
[turbofan] Remove left-over change bits from ChangeLowering.

Now ChangeLowering is only concerned with lowering memory access and
allocation operations, and all changes are consistently lowered during
the effect/control linearization pass. The next step is to move the
left over lowerings to a pass dedicated to eliminate redundant loads and
stores, eliminate write barriers, fold and inline allocations.

Also remove the atomic regions now that we wire everything into the
effect chain properly. This is an important step towards allocation
inlining.

Drive-by-fix: Rename ChangeBitToBool to ChangeBitToTagged,
ChangeBoolToBit to ChangeTaggedToBit, and ChangeInt31ToTagged to
ChangeInt31ToTaggedSigned for consistency.

CQ_INCLUDE_TRYBOTS=tryserver.v8:v8_linux64_tsan_rel

Committed: https://crrev.com/ceca5ae308bddda166651c654f96d71d74f617d0
Cr-Commit-Position: refs/heads/master@{#35924}
==========

[Benedikt Meurer, 2016-05-02 09:55:15]

Description was changed from

==========
[turbofan] Remove left-over change bits from ChangeLowering.

Now ChangeLowering is only concerned with lowering memory access and
allocation operations, and all changes are consistently lowered during
the effect/control linearization pass. The next step is to move the
left over lowerings to a pass dedicated to eliminate redundant loads and
stores, eliminate write barriers, fold and inline allocations.

Also remove the atomic regions now that we wire everything into the
effect chain properly. This is an important step towards allocation
inlining.

Drive-by-fix: Rename ChangeBitToBool to ChangeBitToTagged,
ChangeBoolToBit to ChangeTaggedToBit, and ChangeInt31ToTagged to
ChangeInt31ToTaggedSigned for consistency.

CQ_INCLUDE_TRYBOTS=tryserver.v8:v8_linux64_tsan_rel

Committed: https://crrev.com/ceca5ae308bddda166651c654f96d71d74f617d0
Cr-Commit-Position: refs/heads/master@{#35924}
==========

to

==========
[turbofan] Remove left-over change bits from ChangeLowering.

Now ChangeLowering is only concerned with lowering memory access and
allocation operations, and all changes are consistently lowered during
the effect/control linearization pass. The next step is to move the
left over lowerings to a pass dedicated to eliminate redundant loads and
stores, eliminate write barriers, fold and inline allocations.

Drive-by-fix: Rename ChangeBitToBool to ChangeBitToTagged,
ChangeBoolToBit to ChangeTaggedToBit, and ChangeInt31ToTagged to
ChangeInt31ToTaggedSigned for consistency.

CQ_INCLUDE_TRYBOTS=tryserver.v8:v8_linux64_tsan_rel

Committed: https://crrev.com/ceca5ae308bddda166651c654f96d71d74f617d0
Cr-Commit-Position: refs/heads/master@{#35924}
==========

[Benedikt Meurer, 2016-05-02 09:59:26]

The CQ bit was checked by bmeurer@chromium.org

[Benedikt Meurer, 2016-05-02 09:59:26]

The patchset sent to the CQ was uploaded after l-g-t-m from ishell@chromium.org
Link to the patchset: https://codereview.chromium.org/1941673002/#ps40001
(title: "Don't mess with the regions yet")

[commit-bot: I haz the power, 2016-05-02 09:59:36]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1941673002/40001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1941673002/40001

[commit-bot: I haz the power, 2016-05-02 10:23:06]

Description was changed from

==========
[turbofan] Remove left-over change bits from ChangeLowering.

Now ChangeLowering is only concerned with lowering memory access and
allocation operations, and all changes are consistently lowered during
the effect/control linearization pass. The next step is to move the
left over lowerings to a pass dedicated to eliminate redundant loads and
stores, eliminate write barriers, fold and inline allocations.

Drive-by-fix: Rename ChangeBitToBool to ChangeBitToTagged,
ChangeBoolToBit to ChangeTaggedToBit, and ChangeInt31ToTagged to
ChangeInt31ToTaggedSigned for consistency.

CQ_INCLUDE_TRYBOTS=tryserver.v8:v8_linux64_tsan_rel

Committed: https://crrev.com/ceca5ae308bddda166651c654f96d71d74f617d0
Cr-Commit-Position: refs/heads/master@{#35924}
==========

to

==========
[turbofan] Remove left-over change bits from ChangeLowering.

Now ChangeLowering is only concerned with lowering memory access and
allocation operations, and all changes are consistently lowered during
the effect/control linearization pass. The next step is to move the
left over lowerings to a pass dedicated to eliminate redundant loads and
stores, eliminate write barriers, fold and inline allocations.

Drive-by-fix: Rename ChangeBitToBool to ChangeBitToTagged,
ChangeBoolToBit to ChangeTaggedToBit, and ChangeInt31ToTagged to
ChangeInt31ToTaggedSigned for consistency.

CQ_INCLUDE_TRYBOTS=tryserver.v8:v8_linux64_tsan_rel

Committed: https://crrev.com/ceca5ae308bddda166651c654f96d71d74f617d0
Cr-Commit-Position: refs/heads/master@{#35924}
==========

[commit-bot: I haz the power, 2016-05-02 10:23:07]

Committed patchset #3 (id:40001)

[commit-bot: I haz the power, 2016-05-02 10:23:52]

Description was changed from

==========
[turbofan] Remove left-over change bits from ChangeLowering.

Now ChangeLowering is only concerned with lowering memory access and
allocation operations, and all changes are consistently lowered during
the effect/control linearization pass. The next step is to move the
left over lowerings to a pass dedicated to eliminate redundant loads and
stores, eliminate write barriers, fold and inline allocations.

Drive-by-fix: Rename ChangeBitToBool to ChangeBitToTagged,
ChangeBoolToBit to ChangeTaggedToBit, and ChangeInt31ToTagged to
ChangeInt31ToTaggedSigned for consistency.

CQ_INCLUDE_TRYBOTS=tryserver.v8:v8_linux64_tsan_rel

Committed: https://crrev.com/ceca5ae308bddda166651c654f96d71d74f617d0
Cr-Commit-Position: refs/heads/master@{#35924}
==========

to

==========
[turbofan] Remove left-over change bits from ChangeLowering.

Now ChangeLowering is only concerned with lowering memory access and
allocation operations, and all changes are consistently lowered during
the effect/control linearization pass. The next step is to move the
left over lowerings to a pass dedicated to eliminate redundant loads and
stores, eliminate write barriers, fold and inline allocations.

Drive-by-fix: Rename ChangeBitToBool to ChangeBitToTagged,
ChangeBoolToBit to ChangeTaggedToBit, and ChangeInt31ToTagged to
ChangeInt31ToTaggedSigned for consistency.

CQ_INCLUDE_TRYBOTS=tryserver.v8:v8_linux64_tsan_rel

Committed: https://crrev.com/ceca5ae308bddda166651c654f96d71d74f617d0
Cr-Commit-Position: refs/heads/master@{#35924}

Committed: https://crrev.com/4aa02441dadec2b1cf60f69ba5c30a4a89df576b
Cr-Commit-Position: refs/heads/master@{#35929}
==========

[commit-bot: I haz the power, 2016-05-02 10:23:53]

Patchset 3 (id:??) landed as
https://crrev.com/4aa02441dadec2b1cf60f69ba5c30a4a89df576b
Cr-Commit-Position: refs/heads/master@{#35929}