PPC: [wasm] Int64Lowering of Int64Mul.

PPC: [wasm] Int64Lowering of Int64Mul.

Port 40bdbef975779e41a7e81d3748342dd7da52977f

Original commit message:
    Int64Mul is lowered to a new turbofan operator, Int32MulPair. The new
    operator takes 4 inputs an generates 2 outputs. The inputs are the low
    word of the left input, high word of the left input, the low word of the
    right input, and high word of the right input. The ouputs are the low
    and high word of the result of the multiplication.

R=ahaas@chromium.org, joransiu@ca.ibm.com, jyan@ca.ibm.com, michael_dawson@ca.ibm.com
BUG=

Committed: https://crrev.com/20ff44f07f9397dea765520725d54ee627dcbb64
Cr-Commit-Position: refs/heads/master@{#35143}

[MTBrandyberry, 2016-03-30 21:42:04]

PTAL

[MTBrandyberry, 2016-03-30 21:42:09]

The CQ bit was checked by mbrandy@us.ibm.com to run a CQ dry run

[commit-bot: I haz the power, 2016-03-30 21:42:19]

Dry run: CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1847563003/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1847563003/1

[JoranSiu, 2016-03-30 22:01:51]

On 2016/03/30 21:42:19, commit-bot: I haz the power wrote:
> Dry run: CQ is trying da patch. Follow status at
>  https://chromium-cq-status.appspot.com/patch-status/1847563003/1
> View timeline at
>  https://chromium-cq-status.appspot.com/patch-timeline/1847563003/1

lgtm

[commit-bot: I haz the power, 2016-03-30 22:04:42]

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

[commit-bot: I haz the power, 2016-03-30 22:04:43]

Dry run: This issue passed the CQ dry run.

[MTBrandyberry, 2016-03-30 22:31:45]

The CQ bit was checked by mbrandy@us.ibm.com

[commit-bot: I haz the power, 2016-03-30 22:31:52]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1847563003/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1847563003/1

[commit-bot: I haz the power, 2016-03-30 22:33:54]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-03-30 22:34:33]

Description was changed from

==========
PPC: [wasm] Int64Lowering of Int64Mul.

Port 40bdbef975779e41a7e81d3748342dd7da52977f

Original commit message:
    Int64Mul is lowered to a new turbofan operator, Int32MulPair. The new
    operator takes 4 inputs an generates 2 outputs. The inputs are the low
    word of the left input, high word of the left input, the low word of the
    right input, and high word of the right input. The ouputs are the low
    and high word of the result of the multiplication.

R=ahaas@chromium.org, joransiu@ca.ibm.com, jyan@ca.ibm.com,
michael_dawson@ca.ibm.com
BUG=
==========

to

==========
PPC: [wasm] Int64Lowering of Int64Mul.

Port 40bdbef975779e41a7e81d3748342dd7da52977f

Original commit message:
    Int64Mul is lowered to a new turbofan operator, Int32MulPair. The new
    operator takes 4 inputs an generates 2 outputs. The inputs are the low
    word of the left input, high word of the left input, the low word of the
    right input, and high word of the right input. The ouputs are the low
    and high word of the result of the multiplication.

R=ahaas@chromium.org, joransiu@ca.ibm.com, jyan@ca.ibm.com,
michael_dawson@ca.ibm.com
BUG=

Committed: https://crrev.com/20ff44f07f9397dea765520725d54ee627dcbb64
Cr-Commit-Position: refs/heads/master@{#35143}
==========

[commit-bot: I haz the power, 2016-03-30 22:34:35]

Patchset 1 (id:??) landed as
https://crrev.com/20ff44f07f9397dea765520725d54ee627dcbb64
Cr-Commit-Position: refs/heads/master@{#35143}