[compiler] Tune lowering of CheckedUint32ToInt32.

[compiler] Tune lowering of CheckedUint32ToInt32.

Instead of creating a signed comparison with INT_MAX, create an unsigned
comparison with 0.  This saves a few bytes in the generated code.

R=jarin@chromium.org
BUG=

Review-Url: https://codereview.chromium.org/2715513007
Cr-Commit-Position: refs/heads/master@{#43606}
Committed: https://chromium.googlesource.com/v8/v8/+/c56c2013adaa50028fb20f7579addfe014826ae2

[neis, 2017-02-23 10:28:55]

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

[commit-bot: I haz the power, 2017-02-23 10:28:59]

Dry run: 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, 2017-02-23 11:19:13]

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

[commit-bot: I haz the power, 2017-02-23 11:19:14]

Dry run: This issue passed the CQ dry run.

[Jarin, 2017-03-06 10:41:08]

lgtm, thanks!

[neis, 2017-03-06 10:41:59]

The CQ bit was checked by neis@chromium.org

[commit-bot: I haz the power, 2017-03-06 10:42:04]

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, 2017-03-06 11:07:58]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1488796919194530, "parent_rev":
"de1461b7efd2f52adc9b544240a04937c510a91c", "commit_rev":
"c56c2013adaa50028fb20f7579addfe014826ae2"}

[commit-bot: I haz the power, 2017-03-06 11:08:03]

Description was changed from

==========
[compiler] Tune lowering of CheckedUint32ToInt32.

Instead of creating a signed comparison with INT_MAX, create an unsigned
comparison with 0.  This saves a few bytes in the generated code.

R=jarin@chromium.org
BUG=
==========

to

==========
[compiler] Tune lowering of CheckedUint32ToInt32.

Instead of creating a signed comparison with INT_MAX, create an unsigned
comparison with 0.  This saves a few bytes in the generated code.

R=jarin@chromium.org
BUG=

Review-Url: https://codereview.chromium.org/2715513007
Cr-Commit-Position: refs/heads/master@{#43606}
Committed:
https://chromium.googlesource.com/v8/v8/+/c56c2013adaa50028fb20f7579addfe0148...
==========

[commit-bot: I haz the power, 2017-03-06 11:08:04]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/v8/v8/+/c56c2013adaa50028fb20f7579addfe0148...