[wasm] Remove special treatment of F(32|64)Sub in the interpreter.

[wasm] Remove special treatment of F(32|64)Sub in the interpreter.

The special treatment is not required anymore because the wasm spec
changed and NaNs do not have to be preserved anymore. In addition, it
may introduce non-determinism which confused the fuzzers.

R=titzer@chromium.org
BUG=chromium:681033
Review-Url: https://codereview.chromium.org/2630293002
Cr-Commit-Position: refs/heads/master@{#42359}
Committed: https://chromium.googlesource.com/v8/v8/+/fec614151a3f5aad0a6d44d7eafc38e8f3a006c2

[ahaas, 2017-01-16 10:15:26]

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

[commit-bot: I haz the power, 2017-01-16 10:15:32]

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

[titzer, 2017-01-16 10:22:39]

LGTM, nice to get rid of that mess.

[commit-bot: I haz the power, 2017-01-16 10:40:57]

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

[commit-bot: I haz the power, 2017-01-16 10:40:58]

Dry run: This issue passed the CQ dry run.

[ahaas, 2017-01-16 10:41:18]

The CQ bit was checked by ahaas@chromium.org

[commit-bot: I haz the power, 2017-01-16 10:41:28]

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, 2017-01-16 10:43:04]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1484563278826420, "parent_rev":
"0d0d623b5799daffd9825fee887d78ce29496471", "commit_rev":
"fec614151a3f5aad0a6d44d7eafc38e8f3a006c2"}

[commit-bot: I haz the power, 2017-01-16 10:43:08]

Description was changed from

==========
[wasm] Remove special treatment of F(32|64)Sub in the interpreter.

The special treatment is not required anymore because the wasm spec
changed and NaNs do not have to be preserved anymore. In addition, it
may introduce non-determinism which confused the fuzzers.

R=titzer@chromium.org
BUG=chromium:681033
==========

to

==========
[wasm] Remove special treatment of F(32|64)Sub in the interpreter.

The special treatment is not required anymore because the wasm spec
changed and NaNs do not have to be preserved anymore. In addition, it
may introduce non-determinism which confused the fuzzers.

R=titzer@chromium.org
BUG=chromium:681033

Review-Url: https://codereview.chromium.org/2630293002
Cr-Commit-Position: refs/heads/master@{#42359}
Committed:
https://chromium.googlesource.com/v8/v8/+/fec614151a3f5aad0a6d44d7eafc38e8f3a...
==========

[commit-bot: I haz the power, 2017-01-16 10:43:08]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/v8/v8/+/fec614151a3f5aad0a6d44d7eafc38e8f3a...