[wasm] First step to separate graph construction from graph compilation.

[wasm] First step to separate graph construction from graph compilation.

This is the first step to implement parallel compilation. The next steps
will be to split the pipeline to separate instruction selection from
code generation, and then to call all that from within a CancelableTask.

R=titzer@chromium.org

Committed: https://crrev.com/a0f8869378526caf87add37ad78f0c461c4c0db8
Cr-Commit-Position: refs/heads/master@{#35784}

[titzer, 2016-04-26 08:15:16]

lgtm!

[ahaas, 2016-04-26 08:16:42]

The CQ bit was checked by ahaas@chromium.org

[commit-bot: I haz the power, 2016-04-26 08:16:47]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1900713005/80001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1900713005/80001

[commit-bot: I haz the power, 2016-04-26 08:38:29]

Committed patchset #5 (id:80001)

[commit-bot: I haz the power, 2016-04-26 08:39:10]

Description was changed from

==========
[wasm] First step to separate graph construction from graph compilation.

This is the first step to implement parallel compilation. The next steps
will be to split the pipeline to separate instruction selection from
code generation, and then to call all that from within a CancelableTask.

R=titzer@chromium.org
==========

to

==========
[wasm] First step to separate graph construction from graph compilation.

This is the first step to implement parallel compilation. The next steps
will be to split the pipeline to separate instruction selection from
code generation, and then to call all that from within a CancelableTask.

R=titzer@chromium.org

Committed: https://crrev.com/a0f8869378526caf87add37ad78f0c461c4c0db8
Cr-Commit-Position: refs/heads/master@{#35784}
==========

[commit-bot: I haz the power, 2016-04-26 08:39:10]

Patchset 5 (id:??) landed as
https://crrev.com/a0f8869378526caf87add37ad78f0c461c4c0db8
Cr-Commit-Position: refs/heads/master@{#35784}