PPC/s390: [stubs] Convert GrowElementsStub to TurboFan

PPC/s390: [stubs] Convert GrowElementsStub to TurboFan

Port eb841269235e6b438b75930878a8cb3ca745014c

Original commit message:

    One caveat: the Crankshaft stub used to preserve callee-clobbered double
    registers, which is contrary to any real platform ABI that we support. Since the
    only current use of this stub is in Crankshaft, the instruction there now must
    be marked as double-clobbering. This might result in a small performance
    regression. However, when this stub is eventually used in TF-generated code, it
    will be called from deferred code that can save doubles only on the rarely-taken
    path... something that Crankshaft can't do.

R=danno@chromium.org, joransiu@ca.ibm.com, jyan@ca.ibm.com, michael_dawson@ca.ibm.com, mbrandy@us.ibm.com

BUG=chromium:608675
LOG=N

Committed: https://crrev.com/c39660a4d314472a94c2ffdf243121e473633c5a
Cr-Commit-Position: refs/heads/master@{#38444}

[JaideepBajwa, 2016-08-08 13:16:01]

PTAL

[john.yan, 2016-08-08 13:39:07]

lgtm

[JaideepBajwa, 2016-08-08 13:39:27]

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

[commit-bot: I haz the power, 2016-08-08 13:39:38]

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, 2016-08-08 14:10:13]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-08-08 14:13:33]

Description was changed from

==========
PPC/s390: [stubs] Convert GrowElementsStub to TurboFan

Port eb841269235e6b438b75930878a8cb3ca745014c

Original commit message:

    One caveat: the Crankshaft stub used to preserve callee-clobbered double
    registers, which is contrary to any real platform ABI that we support. Since
the
    only current use of this stub is in Crankshaft, the instruction there now
must
    be marked as double-clobbering. This might result in a small performance
    regression. However, when this stub is eventually used in TF-generated code,
it
    will be called from deferred code that can save doubles only on the
rarely-taken
    path... something that Crankshaft can't do.

R=danno@chromium.org, joransiu@ca.ibm.com, jyan@ca.ibm.com,
michael_dawson@ca.ibm.com, mbrandy@us.ibm.com

BUG=chromium:608675
LOG=N
==========

to

==========
PPC/s390: [stubs] Convert GrowElementsStub to TurboFan

Port eb841269235e6b438b75930878a8cb3ca745014c

Original commit message:

    One caveat: the Crankshaft stub used to preserve callee-clobbered double
    registers, which is contrary to any real platform ABI that we support. Since
the
    only current use of this stub is in Crankshaft, the instruction there now
must
    be marked as double-clobbering. This might result in a small performance
    regression. However, when this stub is eventually used in TF-generated code,
it
    will be called from deferred code that can save doubles only on the
rarely-taken
    path... something that Crankshaft can't do.

R=danno@chromium.org, joransiu@ca.ibm.com, jyan@ca.ibm.com,
michael_dawson@ca.ibm.com, mbrandy@us.ibm.com

BUG=chromium:608675
LOG=N

Committed: https://crrev.com/c39660a4d314472a94c2ffdf243121e473633c5a
Cr-Commit-Position: refs/heads/master@{#38444}
==========

[commit-bot: I haz the power, 2016-08-08 14:13:34]

Patchset 1 (id:??) landed as
https://crrev.com/c39660a4d314472a94c2ffdf243121e473633c5a
Cr-Commit-Position: refs/heads/master@{#38444}