X87: [wasm] Int64Lowering of Int64Add on ia32 and arm.

X87: [wasm] Int64Lowering of Int64Add on ia32 and arm.

  port 1b230799364b7a6fbff3b0ffaee38bc06e19504b (r34747)

  original commit message:
  Int64Add is lowered to a new turbofan operator, Int32AddPair. 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 addition.

BUG=

Committed: https://crrev.com/7e66b57acb8f319611fb7b59fbe8d01f417894c4
Cr-Commit-Position: refs/heads/master@{#34803}

[zhengxing.li, 2016-03-16 02:43:14]

zhengxing.li@intel.com changed reviewers:
+ ahaas@chromium.org, chunyang.dai@intel.com, weiliang.lin@intel.com

[zhengxing.li, 2016-03-16 02:43:14]

PTAL. thanks!

[Weiliang, 2016-03-16 02:49:19]

lgtm

[zhengxing.li, 2016-03-16 02:52:56]

The CQ bit was checked by zhengxing.li@intel.com

[commit-bot: I haz the power, 2016-03-16 02:53:05]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1806833002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1806833002/1

[commit-bot: I haz the power, 2016-03-16 03:12:52]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-03-16 03:14:36]

Description was changed from

==========
X87: [wasm] Int64Lowering of Int64Add on ia32 and arm.

  port 1b230799364b7a6fbff3b0ffaee38bc06e19504b (r34747)

  original commit message:
  Int64Add is lowered to a new turbofan operator, Int32AddPair. 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 addition.

BUG=
==========

to

==========
X87: [wasm] Int64Lowering of Int64Add on ia32 and arm.

  port 1b230799364b7a6fbff3b0ffaee38bc06e19504b (r34747)

  original commit message:
  Int64Add is lowered to a new turbofan operator, Int32AddPair. 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 addition.

BUG=

Committed: https://crrev.com/7e66b57acb8f319611fb7b59fbe8d01f417894c4
Cr-Commit-Position: refs/heads/master@{#34803}
==========

[commit-bot: I haz the power, 2016-03-16 03:14:37]

Patchset 1 (id:??) landed as
https://crrev.com/7e66b57acb8f319611fb7b59fbe8d01f417894c4
Cr-Commit-Position: refs/heads/master@{#34803}