PPC/S390: [es6] Reintroduce the instanceof operator in the backends.

PPC/S390: [es6] Reintroduce the instanceof operator in the backends.

port 551e0aa11bf4b97f9d38c4ce0c5aac89df0a773a

Original Commit Messag:
  This adds back the instanceof operator support in the backends and
  introduces a @@hasInstance protector cell on the isolate that guards the
  fast path for the InstanceOfStub. This way we recover the ~10%
  regression on Octane EarleyBoyer in Crankshaft and greatly improve
  TurboFan and Ignition performance of instanceof.

R=bmeurer@chromium.org, ishell@chromium.org, joransiu@ca.ibm.com, michael_dawson@ca.ibm.com, mbrandy@us.ibm.com
TBR=hpayer@chromium.org,rossberg@chromium.org
BUG=chromium:597249, v8:4447
LOG=n

Committed: https://crrev.com/e9aad72f395e24a5534b14c4d03d120a5230cb14
Cr-Commit-Position: refs/heads/master@{#36290}

[MTBrandyberry, 2016-05-17 16:58:57]

LGTM for PPC

[JoranSiu, 2016-05-17 17:03:36]

lgtm

[john.yan, 2016-05-17 17:04:44]

The CQ bit was checked by jyan@ca.ibm.com

[commit-bot: I haz the power, 2016-05-17 17:04:47]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1989523002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1989523002/1

[commit-bot: I haz the power, 2016-05-17 17:36:59]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-05-17 17:38:20]

Description was changed from

==========
PPC/S390: [es6] Reintroduce the instanceof operator in the backends.

port 551e0aa11bf4b97f9d38c4ce0c5aac89df0a773a

Original Commit Messag:
  This adds back the instanceof operator support in the backends and
  introduces a @@hasInstance protector cell on the isolate that guards the
  fast path for the InstanceOfStub. This way we recover the ~10%
  regression on Octane EarleyBoyer in Crankshaft and greatly improve
  TurboFan and Ignition performance of instanceof.

R=bmeurer@chromium.org, ishell@chromium.org, joransiu@ca.ibm.com,
michael_dawson@ca.ibm.com, mbrandy@us.ibm.com
TBR=hpayer@chromium.org,rossberg@chromium.org
BUG=chromium:597249, v8:4447
LOG=n
==========

to

==========
PPC/S390: [es6] Reintroduce the instanceof operator in the backends.

port 551e0aa11bf4b97f9d38c4ce0c5aac89df0a773a

Original Commit Messag:
  This adds back the instanceof operator support in the backends and
  introduces a @@hasInstance protector cell on the isolate that guards the
  fast path for the InstanceOfStub. This way we recover the ~10%
  regression on Octane EarleyBoyer in Crankshaft and greatly improve
  TurboFan and Ignition performance of instanceof.

R=bmeurer@chromium.org, ishell@chromium.org, joransiu@ca.ibm.com,
michael_dawson@ca.ibm.com, mbrandy@us.ibm.com
TBR=hpayer@chromium.org,rossberg@chromium.org
BUG=chromium:597249, v8:4447
LOG=n

Committed: https://crrev.com/e9aad72f395e24a5534b14c4d03d120a5230cb14
Cr-Commit-Position: refs/heads/master@{#36290}
==========

[commit-bot: I haz the power, 2016-05-17 17:38:22]

Patchset 1 (id:??) landed as
https://crrev.com/e9aad72f395e24a5534b14c4d03d120a5230cb14
Cr-Commit-Position: refs/heads/master@{#36290}