[turbofan] Specialize to (optimization time) known TypedArray instances.

[turbofan] Specialize to (optimization time) known TypedArray instances.

When we have a known JSTypedArray instance at optimization time, i.e. as
in asm.js-like use cases and also when there are global typed arrays that
are tracked via global object property constant tracking, we can generate
more efficient code in that case by specializing to the immutable internal
fields of the JSTypedArray (and the JSArrayBuffer backing it).

R=jarin@chromium.org
BUG=v8:4470, v8:5267
Committed: https://crrev.com/4db73ae0e023df5ede7107a7bf2e2509c00c7021
Cr-Commit-Position: refs/heads/master@{#41017}

[Benedikt Meurer, 2016-11-16 06:03:25]

The CQ bit was checked by bmeurer@chromium.org to run a CQ dry run

[commit-bot: I haz the power, 2016-11-16 06:03:34]

Dry run: CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[Benedikt Meurer, 2016-11-16 06:04:20]

Hey Jaro,

Here's the first fix for Mandreel performance, which does the asm.js-like
specialization even for non-asm.js code.
Please take a look.

Thanks,
Benedikt

[commit-bot: I haz the power, 2016-11-16 06:28:26]

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

[commit-bot: I haz the power, 2016-11-16 06:28:26]

Dry run: This issue passed the CQ dry run.

[Jarin, 2016-11-16 07:35:33]

lgtm

[Benedikt Meurer, 2016-11-16 07:47:03]

The CQ bit was checked by bmeurer@chromium.org

[commit-bot: I haz the power, 2016-11-16 07:47:10]

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, 2016-11-16 07:49:08]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-11-17 22:35:24]

Description was changed from

==========
[turbofan] Specialize to (optimization time) known TypedArray instances.

When we have a known JSTypedArray instance at optimization time, i.e. as
in asm.js-like use cases and also when there are global typed arrays that
are tracked via global object property constant tracking, we can generate
more efficient code in that case by specializing to the immutable internal
fields of the JSTypedArray (and the JSArrayBuffer backing it).

R=jarin@chromium.org
BUG=v8:4470,v8:5267
==========

to

==========
[turbofan] Specialize to (optimization time) known TypedArray instances.

When we have a known JSTypedArray instance at optimization time, i.e. as
in asm.js-like use cases and also when there are global typed arrays that
are tracked via global object property constant tracking, we can generate
more efficient code in that case by specializing to the immutable internal
fields of the JSTypedArray (and the JSArrayBuffer backing it).

R=jarin@chromium.org
BUG=v8:4470,v8:5267

Committed: https://crrev.com/4db73ae0e023df5ede7107a7bf2e2509c00c7021
Cr-Commit-Position: refs/heads/master@{#41017}
==========

[commit-bot: I haz the power, 2016-11-17 22:35:25]

Patchset 1 (id:??) landed as
https://crrev.com/4db73ae0e023df5ede7107a7bf2e2509c00c7021
Cr-Commit-Position: refs/heads/master@{#41017}