[turbofan] Remove support for LazyBailout operators.

[turbofan] Remove support for LazyBailout operators.

The LazyBailout operator (modelled as a nop-call) was introduced for
placing a deoptimization point into exception handlers. Now that we are
no longer re-entering lazy deoptimized code, the support can be removed.

R=jarin@chromium.org
BUG=v8:4195
LOG=n

Committed: https://crrev.com/aa31ff31a8851c7c514ab430df6e15981ed269a5
Cr-Commit-Position: refs/heads/master@{#34020}

[Michael Starzinger, 2016-02-12 10:24:41]

Because less code is better code.

[Benedikt Meurer, 2016-02-12 10:25:31]

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

[Benedikt Meurer, 2016-02-12 10:25:32]

Awesome, LGTM!

[Jarin, 2016-02-12 13:23:36]

lgtm

[Michael Starzinger, 2016-02-12 13:25:03]

The CQ bit was checked by mstarzinger@chromium.org

[commit-bot: I haz the power, 2016-02-12 13:25:08]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1697503002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1697503002/1

[commit-bot: I haz the power, 2016-02-12 13:27:35]

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

[commit-bot: I haz the power, 2016-02-12 13:27:36]

Try jobs failed on following builders:
  v8_win64_rel_ng on tryserver.v8 (JOB_FAILED,
http://build.chromium.org/p/tryserver.v8/builders/v8_win64_rel_ng/builds/2836)

[Michael Starzinger, 2016-02-12 14:34:43]

The CQ bit was checked by mstarzinger@chromium.org

[Michael Starzinger, 2016-02-12 14:34:44]

The patchset sent to the CQ was uploaded after l-g-t-m from
bmeurer@chromium.org, jarin@chromium.org
Link to the patchset: https://codereview.chromium.org/1697503002/#ps20001
(title: "Rebased.")

[commit-bot: I haz the power, 2016-02-12 14:34:51]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1697503002/20001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1697503002/20001

[commit-bot: I haz the power, 2016-02-12 15:23:52]

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

[commit-bot: I haz the power, 2016-02-12 15:23:53]

Try jobs failed on following builders:
  v8_presubmit on tryserver.v8 (JOB_FAILED,
http://build.chromium.org/p/tryserver.v8/builders/v8_presubmit/builds/10893)

[Michael Starzinger, 2016-02-16 09:39:55]

The CQ bit was checked by mstarzinger@chromium.org

[Michael Starzinger, 2016-02-16 09:39:55]

The patchset sent to the CQ was uploaded after l-g-t-m from
bmeurer@chromium.org, jarin@chromium.org
Link to the patchset: https://codereview.chromium.org/1697503002/#ps40001
(title: "Rebased.")

[commit-bot: I haz the power, 2016-02-16 09:40:06]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1697503002/40001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1697503002/40001

[commit-bot: I haz the power, 2016-02-16 09:48:21]

Committed patchset #3 (id:40001)

[commit-bot: I haz the power, 2016-02-16 09:49:06]

Description was changed from

==========
[turbofan] Remove support for LazyBailout operators.

The LazyBailout operator (modelled as a nop-call) was introduced for
placing a deoptimization point into exception handlers. Now that we are
no longer re-entering lazy deoptimized code, the support can be removed.

R=jarin@chromium.org
BUG=v8:4195
LOG=n
==========

to

==========
[turbofan] Remove support for LazyBailout operators.

The LazyBailout operator (modelled as a nop-call) was introduced for
placing a deoptimization point into exception handlers. Now that we are
no longer re-entering lazy deoptimized code, the support can be removed.

R=jarin@chromium.org
BUG=v8:4195
LOG=n

Committed: https://crrev.com/aa31ff31a8851c7c514ab430df6e15981ed269a5
Cr-Commit-Position: refs/heads/master@{#34020}
==========

[commit-bot: I haz the power, 2016-02-16 09:49:07]

Patchset 3 (id:??) landed as
https://crrev.com/aa31ff31a8851c7c514ab430df6e15981ed269a5
Cr-Commit-Position: refs/heads/master@{#34020}