[turbofan] Optimize store to typed arrays only if the value is plain primitive.

[turbofan] Optimize store to typed arrays only if the value is plain primitive.

BUG=v8:5756
Review-Url: https://codereview.chromium.org/2596843002
Cr-Commit-Position: refs/heads/master@{#41942}
Committed: https://chromium.googlesource.com/v8/v8/+/e92118bbc25c39b3213a3f4dcbf35e825eaf0b8a

[Jarin, 2016-12-21 15:13:24]

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

[commit-bot: I haz the power, 2016-12-21 15:13:29]

Dry run: 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, 2016-12-21 15:18:59]

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

[commit-bot: I haz the power, 2016-12-21 15:18:59]

Dry run: Try jobs failed on following builders:
  v8_linux64_gyp_rel_ng on master.tryserver.v8 (JOB_FAILED,
http://build.chromium.org/p/tryserver.v8/builders/v8_linux64_gyp_rel_ng/build...)

[Benedikt Meurer, 2016-12-21 18:33:39]

bmeurer@chromium.org changed reviewers:
+ bmeurer@chromium.org

[Benedikt Meurer, 2016-12-21 18:33:39]

I'd love to get rid of the whole code in JSTypedLowering, but meanwhile this is
also LGTM % unittest update.

[Benedikt Meurer, 2016-12-22 04:50:21]

https://codereview.chromium.org/2596843002/diff/1/test/mjsunit/compiler/regre...
File test/mjsunit/compiler/regress-v8-5756.js (right):

https://codereview.chromium.org/2596843002/diff/1/test/mjsunit/compiler/regre...
test/mjsunit/compiler/regress-v8-5756.js:19: t[2] = z; // since we are assigning
to Uint8Array, ToNumber
JSNativeContextSpecialization cannot lower this, since the IC is already
megamorphic due to the {} on the right hand side.

[Jarin, 2016-12-23 13:04:19]

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

[commit-bot: I haz the power, 2016-12-23 13:04:27]

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

[Jarin, 2016-12-23 13:04:51]

The CQ bit was unchecked by jarin@chromium.org

[Jarin, 2016-12-23 13:04:51]

The CQ bit was checked by jarin@chromium.org

[Jarin, 2016-12-23 13:04:52]

The patchset sent to the CQ was uploaded after l-g-t-m from bmeurer@chromium.org
Link to the patchset: https://codereview.chromium.org/2596843002/#ps20001
(title: "Fix unit test")

[commit-bot: I haz the power, 2016-12-23 13:04:57]

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, 2016-12-23 13:09:17]

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

[commit-bot: I haz the power, 2016-12-23 13:09:18]

Try jobs failed on following builders:
  v8_linux64_gyp_rel_ng on master.tryserver.v8 (JOB_FAILED,
http://build.chromium.org/p/tryserver.v8/builders/v8_linux64_gyp_rel_ng/build...)

[Jarin, 2016-12-23 14:03:21]

The CQ bit was checked by jarin@chromium.org

[Jarin, 2016-12-23 14:03:22]

The patchset sent to the CQ was uploaded after l-g-t-m from bmeurer@chromium.org
Link to the patchset: https://codereview.chromium.org/2596843002/#ps40001
(title: "Remove dead variable")

[commit-bot: I haz the power, 2016-12-23 14:03:26]

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, 2016-12-23 14:29:00]

CQ is committing da patch.

Bot data: {"patchset_id": 40001, "attempt_start_ts": 1482501801714490,
"parent_rev": "0d5561b64d34129e6546947255e543c219c61655", "commit_rev":
"e92118bbc25c39b3213a3f4dcbf35e825eaf0b8a"}

[commit-bot: I haz the power, 2016-12-23 14:29:05]

Description was changed from

==========
[turbofan] Optimize store to typed arrays only if the value is plain primitive.

BUG=v8:5756
==========

to

==========
[turbofan] Optimize store to typed arrays only if the value is plain primitive.

BUG=v8:5756

Review-Url: https://codereview.chromium.org/2596843002
Cr-Commit-Position: refs/heads/master@{#41942}
Committed:
https://chromium.googlesource.com/v8/v8/+/e92118bbc25c39b3213a3f4dcbf35e825ea...
==========

[commit-bot: I haz the power, 2016-12-23 14:29:06]

Committed patchset #3 (id:40001) as
https://chromium.googlesource.com/v8/v8/+/e92118bbc25c39b3213a3f4dcbf35e825ea...