[full-codegen] Reload context register after intrinsic call.

[full-codegen] Reload context register after intrinsic call.

Previously all code stubs (i.e. both platform and Crankshaft code stubs)
preserved the context register for full-codegen (neither Ignition, nor
TurboFan nor Crankshaft require this or would benefit from this), but
the newly introduced TurboFanCodeStubs no longer do this and there's no
need to, so we have to make sure in full-codegen that we restore the
context register after intrinsic calls, which potentially call
TurboFanCodeStubs.

Drive-by-fix: VisitThisFunction can be made platform independent.

R=verwaest@chromium.org

Committed: https://crrev.com/833618d91f9b65c5929bce24176899b9f63273c7
Cr-Commit-Position: refs/heads/master@{#35154}

[Benedikt Meurer, 2016-03-30 18:05:40]

Hey Toon,

This is already required for %_ToLength, which I think somehow manages to
preserve context, but that's by accident.
Please take a look.

Thanks,
Benedikt

[Toon Verwaest, 2016-03-31 08:25:45]

lgtm, thanks for fixing this.

[Toon Verwaest, 2016-03-31 08:25:54]

The CQ bit was checked by verwaest@chromium.org

[commit-bot: I haz the power, 2016-03-31 08:26:05]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1848553002/20001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1848553002/20001

[commit-bot: I haz the power, 2016-03-31 08:37:17]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2016-03-31 08:38:53]

Description was changed from

==========
[full-codegen] Reload context register after intrinsic call.

Previously all code stubs (i.e. both platform and Crankshaft code stubs)
preserved the context register for full-codegen (neither Ignition, nor
TurboFan nor Crankshaft require this or would benefit from this), but
the newly introduced TurboFanCodeStubs no longer do this and there's no
need to, so we have to make sure in full-codegen that we restore the
context register after intrinsic calls, which potentially call
TurboFanCodeStubs.

Drive-by-fix: VisitThisFunction can be made platform independent.

R=verwaest@chromium.org
==========

to

==========
[full-codegen] Reload context register after intrinsic call.

Previously all code stubs (i.e. both platform and Crankshaft code stubs)
preserved the context register for full-codegen (neither Ignition, nor
TurboFan nor Crankshaft require this or would benefit from this), but
the newly introduced TurboFanCodeStubs no longer do this and there's no
need to, so we have to make sure in full-codegen that we restore the
context register after intrinsic calls, which potentially call
TurboFanCodeStubs.

Drive-by-fix: VisitThisFunction can be made platform independent.

R=verwaest@chromium.org

Committed: https://crrev.com/833618d91f9b65c5929bce24176899b9f63273c7
Cr-Commit-Position: refs/heads/master@{#35154}
==========

[commit-bot: I haz the power, 2016-03-31 08:38:53]

Patchset 2 (id:??) landed as
https://crrev.com/833618d91f9b65c5929bce24176899b9f63273c7
Cr-Commit-Position: refs/heads/master@{#35154}