Add popcnt support for pnacl

Add popcnt support for pnacl

Detect popcount from cpuid and add feature flag in
pnacl.

BUG=660673
Committed: https://crrev.com/b7d2f408e8d9b4dd4443222e61b0bc71932a4ab4
Cr-Commit-Position: refs/heads/master@{#428632}

[Isaac (away), 2016-10-30 01:37:11]

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

[commit-bot: I haz the power, 2016-10-30 01:37:16]

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

[Isaac (away), 2016-10-30 01:39:46]

ilevy@chromium.org changed reviewers:
+ mseaborn@chromium.org, thakis@chromium.org

[commit-bot: I haz the power, 2016-10-30 02:26:18]

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

[commit-bot: I haz the power, 2016-10-30 02:26:19]

Dry run: This issue passed the CQ dry run.

[Mark Seaborn, 2016-10-30 02:35:16]

LGTM

[Isaac (away), 2016-10-30 02:57:49]

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

[commit-bot: I haz the power, 2016-10-30 02:58:00]

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

[Isaac (away), 2016-10-30 03:08:19]

ilevy@chromium.org changed reviewers:
+ mark@chromium.org

[Isaac (away), 2016-10-30 03:10:17]

+mark for base owners (thakis away)

[Isaac (away), 2016-10-30 03:43:16]

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

[commit-bot: I haz the power, 2016-10-30 03:43:27]

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, 2016-10-30 04:39:15]

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

[commit-bot: I haz the power, 2016-10-30 04:39:16]

Dry run: This issue passed the CQ dry run.

[Mark Mentovai, 2016-10-30 15:37:55]

https://codereview.chromium.org/2458333002/diff/60001/base/cpu_unittest.cc
File base/cpu_unittest.cc (right):

https://codereview.chromium.org/2458333002/diff/60001/base/cpu_unittest.cc#ne...
base/cpu_unittest.cc:30: #if defined(COMPILER_GCC)
Test popcnt up here in the gcc/clang branch.

[Isaac (away), 2016-10-30 15:51:23]

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

[commit-bot: I haz the power, 2016-10-30 15:51:32]

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

[Isaac (away), 2016-10-30 16:23:11]

On 2016/10/30 15:37:55, Mark Mentovai wrote:
> Test popcnt up here in the gcc/clang branch.

All set. Thanks for catching.

popcnt flag reference:
http://www.intel.com/content/dam/www/public/us/en/documents/manuals/64-ia-32-...

[commit-bot: I haz the power, 2016-10-30 16:51:29]

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

[commit-bot: I haz the power, 2016-10-30 16:51:30]

Dry run: This issue passed the CQ dry run.

[Mark Mentovai, 2016-10-30 19:44:15]

LGTM

[Isaac (away), 2016-10-30 20:42:19]

The CQ bit was checked by ilevy@chromium.org

[Isaac (away), 2016-10-30 20:42:19]

The patchset sent to the CQ was uploaded after l-g-t-m from
mseaborn@chromium.org
Link to the patchset: https://codereview.chromium.org/2458333002/#ps80001
(title: "Add popcnt test for clang")

[commit-bot: I haz the power, 2016-10-30 20:42:23]

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, 2016-10-30 20:47:23]

Committed patchset #5 (id:80001)

[commit-bot: I haz the power, 2016-10-30 20:49:39]

Description was changed from

==========
Add popcnt support for pnacl

Detect popcount from cpuid and add feature flag in
pnacl.

BUG=660673
==========

to

==========
Add popcnt support for pnacl

Detect popcount from cpuid and add feature flag in
pnacl.

BUG=660673

Committed: https://crrev.com/b7d2f408e8d9b4dd4443222e61b0bc71932a4ab4
Cr-Commit-Position: refs/heads/master@{#428632}
==========

[commit-bot: I haz the power, 2016-10-30 20:49:40]

Patchset 5 (id:??) landed as
https://crrev.com/b7d2f408e8d9b4dd4443222e61b0bc71932a4ab4
Cr-Commit-Position: refs/heads/master@{#428632}