[turbofan] Recognize a couple of collection.js intrinsics.

[turbofan] Recognize a couple of collection.js intrinsics.

Right now running the Map and Set builtins with I+TF would tank
seriously because these builtins are still built on top of a
couple of classic intrinsics that TurboFan doesn't understand.
Middle-term the idea is to replace the Map and Set builtins with
a CodeStubAssembler based solution, but for that might not be
ready in time, so adding support for a couple of the critical
intrinsics to mitigate the tankage a bit, namely

 - %_JSCollectionGetTable,
 - %_TheHole, and
 - %_StringGetRawHashField.

Together these double the score on most of the existing performance
tests for collections.

R=yangguo@chromium.org
BUG=v8:5267
Review-Url: https://codereview.chromium.org/2647733002
Cr-Commit-Position: refs/heads/master@{#42521}
Committed: https://chromium.googlesource.com/v8/v8/+/d389e49b5c0f3b41a97782257dfd91fb8a5d6551

[Benedikt Meurer, 2017-01-19 20:30:15]

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

[commit-bot: I haz the power, 2017-01-19 20:30:18]

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

[Benedikt Meurer, 2017-01-19 20:43:54]

The CQ bit was unchecked by bmeurer@chromium.org

[Yang, 2017-01-19 20:45:33]

On 2017/01/19 20:30:14, Benedikt Meurer wrote:

lgtm

[Benedikt Meurer, 2017-01-19 20:45:56]

The CQ bit was checked by bmeurer@chromium.org

[commit-bot: I haz the power, 2017-01-19 20:45:59]

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, 2017-01-19 21:03:08]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1484858756022100, "parent_rev":
"89f5efb761a8d60521b660a3f8330e2b44a93938", "commit_rev":
"d389e49b5c0f3b41a97782257dfd91fb8a5d6551"}

[commit-bot: I haz the power, 2017-01-19 21:03:12]

Description was changed from

==========
[turbofan] Recognize a couple of collection.js intrinsics.

Right now running the Map and Set builtins with I+TF would tank
seriously because these builtins are still built on top of a
couple of classic intrinsics that TurboFan doesn't understand.
Middle-term the idea is to replace the Map and Set builtins with
a CodeStubAssembler based solution, but for that might not be
ready in time, so adding support for a couple of the critical
intrinsics to mitigate the tankage a bit, namely

 - %_JSCollectionGetTable,
 - %_TheHole, and
 - %_StringGetRawHashField.

Together these double the score on most of the existing performance
tests for collections.

R=yangguo@chromium.org
BUG=v8:5267
==========

to

==========
[turbofan] Recognize a couple of collection.js intrinsics.

Right now running the Map and Set builtins with I+TF would tank
seriously because these builtins are still built on top of a
couple of classic intrinsics that TurboFan doesn't understand.
Middle-term the idea is to replace the Map and Set builtins with
a CodeStubAssembler based solution, but for that might not be
ready in time, so adding support for a couple of the critical
intrinsics to mitigate the tankage a bit, namely

 - %_JSCollectionGetTable,
 - %_TheHole, and
 - %_StringGetRawHashField.

Together these double the score on most of the existing performance
tests for collections.

R=yangguo@chromium.org
BUG=v8:5267

Review-Url: https://codereview.chromium.org/2647733002
Cr-Commit-Position: refs/heads/master@{#42521}
Committed:
https://chromium.googlesource.com/v8/v8/+/d389e49b5c0f3b41a97782257dfd91fb8a5...
==========

[commit-bot: I haz the power, 2017-01-19 21:03:13]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/v8/v8/+/d389e49b5c0f3b41a97782257dfd91fb8a5...