[turbofan] Also track Float64 fields in LoadElimination (on 64-bit platforms).

[turbofan] Also track Float64 fields in LoadElimination (on 64-bit platforms).

This adds support to track Float64 fields on 64-bit platforms, which is
necessary to properly deal with unboxed double fields there.

Drive-by-fix: Crash if we see Simd128 representation here.

R=jarin@chromium.org
BUG=v8:5608
Committed: https://crrev.com/76bd4ff492c50ff6f066b76bc98ea5714b7236d0
Cr-Commit-Position: refs/heads/master@{#40788}

[Benedikt Meurer, 2016-11-07 05:26:34]

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

[commit-bot: I haz the power, 2016-11-07 05:26:45]

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

[Benedikt Meurer, 2016-11-07 05:31:16]

Hey Jaro,

Here's the first part of the LoadElimination fixes.
Please take a look.

Thanks,
Benedikt

[commit-bot: I haz the power, 2016-11-07 05:44:44]

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

[commit-bot: I haz the power, 2016-11-07 05:44:45]

Dry run: Try jobs failed on following builders:
  v8_linux64_avx2_rel_ng on master.tryserver.v8 (JOB_FAILED,
http://build.chromium.org/p/tryserver.v8/builders/v8_linux64_avx2_rel_ng/buil...)
  v8_linux64_avx2_rel_ng_triggered on master.tryserver.v8 (JOB_FAILED,
http://build.chromium.org/p/tryserver.v8/builders/v8_linux64_avx2_rel_ng_trig...)

[Benedikt Meurer, 2016-11-07 06:23:16]

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

[commit-bot: I haz the power, 2016-11-07 06:23:22]

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

[Jarin, 2016-11-07 06:44:43]

lgtm

[Benedikt Meurer, 2016-11-07 06:44:51]

The CQ bit was unchecked by bmeurer@chromium.org

[Benedikt Meurer, 2016-11-07 06:44:56]

The CQ bit was checked by bmeurer@chromium.org

[commit-bot: I haz the power, 2016-11-07 06:45:05]

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, 2016-11-07 06:48:17]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2016-11-17 22:24:00]

Description was changed from

==========
[turbofan] Also track Float64 fields in LoadElimination (on 64-bit platforms).

This adds support to track Float64 fields on 64-bit platforms, which is
necessary to properly deal with unboxed double fields there.

Drive-by-fix: Crash if we see Simd128 representation here.

R=jarin@chromium.org
BUG=v8:5608
==========

to

==========
[turbofan] Also track Float64 fields in LoadElimination (on 64-bit platforms).

This adds support to track Float64 fields on 64-bit platforms, which is
necessary to properly deal with unboxed double fields there.

Drive-by-fix: Crash if we see Simd128 representation here.

R=jarin@chromium.org
BUG=v8:5608

Committed: https://crrev.com/76bd4ff492c50ff6f066b76bc98ea5714b7236d0
Cr-Commit-Position: refs/heads/master@{#40788}
==========

[commit-bot: I haz the power, 2016-11-17 22:24:01]

Patchset 2 (id:??) landed as
https://crrev.com/76bd4ff492c50ff6f066b76bc98ea5714b7236d0
Cr-Commit-Position: refs/heads/master@{#40788}