[crankshaft] Specialize JS runtime calls to the native context.

[crankshaft] Specialize JS runtime calls to the native context.

Since Crankshaft specializes to the native context anyways, we don't
need the indirection of loading from the native context and calling the
JS runtime function indirectly, but we can just specialize to the JS
runtime function from the native context and emit a direct (constant)
function call.

BUG=chromium:592692, chromium:595265
R=ishell@chromium.org
LOG=n

Committed: https://crrev.com/479a2df31a5c68eab494814042e2169b8163830e
Cr-Commit-Position: refs/heads/master@{#34842}

[Benedikt Meurer, 2016-03-16 19:03:57]

Hey Igor,

Here's an optimization to bring JS runtime call support in Crankshaft to the
same level that we have in TurboFan. In Crankshaft it's even easier, since we
always specialize to the native context anyways.
Please take a look.

Thanks,
Benedikt

[Igor Sheludko, 2016-03-16 21:18:39]

lgtm

[Benedikt Meurer, 2016-03-16 21:18:48]

The CQ bit was checked by bmeurer@chromium.org

[commit-bot: I haz the power, 2016-03-16 21:18:58]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1807003002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1807003002/1

[commit-bot: I haz the power, 2016-03-16 21:20:43]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-03-16 21:21:14]

Description was changed from

==========
[crankshaft] Specialize JS runtime calls to the native context.

Since Crankshaft specializes to the native context anyways, we don't
need the indirection of loading from the native context and calling the
JS runtime function indirectly, but we can just specialize to the JS
runtime function from the native context and emit a direct (constant)
function call.

BUG=chromium:592692,chromium:595265
R=ishell@chromium.org
LOG=n
==========

to

==========
[crankshaft] Specialize JS runtime calls to the native context.

Since Crankshaft specializes to the native context anyways, we don't
need the indirection of loading from the native context and calling the
JS runtime function indirectly, but we can just specialize to the JS
runtime function from the native context and emit a direct (constant)
function call.

BUG=chromium:592692,chromium:595265
R=ishell@chromium.org
LOG=n

Committed: https://crrev.com/479a2df31a5c68eab494814042e2169b8163830e
Cr-Commit-Position: refs/heads/master@{#34842}
==========

[commit-bot: I haz the power, 2016-03-16 21:21:15]

Patchset 1 (id:??) landed as
https://crrev.com/479a2df31a5c68eab494814042e2169b8163830e
Cr-Commit-Position: refs/heads/master@{#34842}