[turbofan] Properly emit vsqrtsd if AVX is enabled.

[turbofan] Properly emit vsqrtsd if AVX is enabled.

We shall not mix AVX and SSE instructions as that can cause performance
regressions in some areas, so make sure to emit vsqrtsd instead of
sqrtsd when AVX is enabled.

R=ahaas@chromium.org

Committed: https://crrev.com/4cf5ee6b38fb5de4085796a5d6c1b181722f8bce
Cr-Commit-Position: refs/heads/master@{#39349}

[Benedikt Meurer, 2016-09-12 11:20:08]

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

[commit-bot: I haz the power, 2016-09-12 11:20:12]

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

[ahaas, 2016-09-12 11:22:22]

lgtm

[Benedikt Meurer, 2016-09-12 11:23:19]

The CQ bit was unchecked by bmeurer@chromium.org

[Benedikt Meurer, 2016-09-12 11:23:25]

The CQ bit was checked by bmeurer@chromium.org

[commit-bot: I haz the power, 2016-09-12 11:23:35]

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, 2016-09-12 11:50:41]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-09-12 11:51:11]

Description was changed from

==========
[turbofan] Properly emit vsqrtsd if AVX is enabled.

We shall not mix AVX and SSE instructions as that can cause performance
regressions in some areas, so make sure to emit vsqrtsd instead of
sqrtsd when AVX is enabled.

R=ahaas@chromium.org
==========

to

==========
[turbofan] Properly emit vsqrtsd if AVX is enabled.

We shall not mix AVX and SSE instructions as that can cause performance
regressions in some areas, so make sure to emit vsqrtsd instead of
sqrtsd when AVX is enabled.

R=ahaas@chromium.org

Committed: https://crrev.com/4cf5ee6b38fb5de4085796a5d6c1b181722f8bce
Cr-Commit-Position: refs/heads/master@{#39349}
==========

[commit-bot: I haz the power, 2016-09-12 11:51:12]

Patchset 1 (id:??) landed as
https://crrev.com/4cf5ee6b38fb5de4085796a5d6c1b181722f8bce
Cr-Commit-Position: refs/heads/master@{#39349}