[wasm] flag for asm-wasm investigations

[wasm] flag for asm-wasm investigations

This is a flag useful for testing/perf investigations for asm-wasm.

We can dump the internal representation of a asm.js module (when asm-wasm is
enabled with --validate-asm) using --dump-wasm-module. We can't pick that 
module afterwards because it contains non-compliant opcodes - used as 
implementation detail of our asm-wasm pipeline.

This flag forces asm.js origin on the decoder.

BUG=

Review-Url: https://codereview.chromium.org/2656103003
Cr-Commit-Position: refs/heads/master@{#42716}
Committed: https://chromium.googlesource.com/v8/v8/+/373320aef92177fd1870825b47e8896df00efc52

[Mircea Trofin, 2017-01-26 20:40:42]

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

[commit-bot: I haz the power, 2017-01-26 20:40:45]

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

[Mircea Trofin, 2017-01-26 20:43:01]

Description was changed from

==========
[wasm] flag for asm-wasm investigations

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

to

==========
[wasm] flag for asm-wasm investigations

This is a flag useful for testing/perf investigations for asm-wasm.

We can dump the internal representation of a asm.js module (when asm-wasm is
enabled with --validate-asm) using --dump-wasm-module. We can't pick that 
module afterwards because it contains non-compliant opcodes - used as 
implementation detail of our asm-wasm pipeline.

This flag forces asm.js origin on the decoder.

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

[Mircea Trofin, 2017-01-26 20:43:01]

mtrofin@chromium.org changed reviewers:
+ bradnelson@chromium.org

[commit-bot: I haz the power, 2017-01-26 21:17:09]

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

[commit-bot: I haz the power, 2017-01-26 21:17:10]

Dry run: This issue passed the CQ dry run.

[bradnelson, 2017-01-26 21:57:33]

The CQ bit was checked by bradnelson@chromium.org

[bradnelson, 2017-01-26 21:57:33]

lgtm

[commit-bot: I haz the power, 2017-01-26 21:57:37]

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, 2017-01-26 21:59:34]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1485467853406120, "parent_rev":
"adc42c3a822d53726fb114540ade6d62a8ab6971", "commit_rev":
"373320aef92177fd1870825b47e8896df00efc52"}

[commit-bot: I haz the power, 2017-01-26 21:59:38]

Description was changed from

==========
[wasm] flag for asm-wasm investigations

This is a flag useful for testing/perf investigations for asm-wasm.

We can dump the internal representation of a asm.js module (when asm-wasm is
enabled with --validate-asm) using --dump-wasm-module. We can't pick that 
module afterwards because it contains non-compliant opcodes - used as 
implementation detail of our asm-wasm pipeline.

This flag forces asm.js origin on the decoder.

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

to

==========
[wasm] flag for asm-wasm investigations

This is a flag useful for testing/perf investigations for asm-wasm.

We can dump the internal representation of a asm.js module (when asm-wasm is
enabled with --validate-asm) using --dump-wasm-module. We can't pick that 
module afterwards because it contains non-compliant opcodes - used as 
implementation detail of our asm-wasm pipeline.

This flag forces asm.js origin on the decoder.

BUG=

Review-Url: https://codereview.chromium.org/2656103003
Cr-Commit-Position: refs/heads/master@{#42716}
Committed:
https://chromium.googlesource.com/v8/v8/+/373320aef92177fd1870825b47e8896df00...
==========

[commit-bot: I haz the power, 2017-01-26 21:59:39]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/v8/v8/+/373320aef92177fd1870825b47e8896df00...