[turbofan] Avoid introducing machine operators during typed lowering.

[turbofan] Avoid introducing machine operators during typed lowering.

Introducing machine operators early causes trouble for the typing,
truncation analysis and representation selection, so we should rather
stick to simplified operators instead. Now there's only the for-in case
left, which is not clear how we can handle this in a better way.

Drive-by-fix: Also don't introduce Int32Constant and Word32Shl in
JSTypedLowering, but use NumberConstant and proper NumberShiftLeft
operators instead.

R=jarin@chromium.org
BUG=chromium:630951
Committed: https://crrev.com/5bed1516c8218b2607cbbe9e1f96c8f83376da41
Cr-Commit-Position: refs/heads/master@{#38008}

[Benedikt Meurer, 2016-07-25 09:52:22]

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

[commit-bot: I haz the power, 2016-07-25 09:52:30]

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, 2016-07-25 10:20:55]

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

[commit-bot: I haz the power, 2016-07-25 10:20:56]

Dry run: This issue passed the CQ dry run.

[Jarin, 2016-07-25 10:35:25]

lgtm

[Benedikt Meurer, 2016-07-25 10:35:42]

The CQ bit was checked by bmeurer@chromium.org

[commit-bot: I haz the power, 2016-07-25 10:35:46]

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, 2016-07-25 10:37:29]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-07-25 10:38:09]

Description was changed from

==========
[turbofan] Avoid introducing machine operators during typed lowering.

Introducing machine operators early causes trouble for the typing,
truncation analysis and representation selection, so we should rather
stick to simplified operators instead. Now there's only the for-in case
left, which is not clear how we can handle this in a better way.

Drive-by-fix: Also don't introduce Int32Constant and Word32Shl in
JSTypedLowering, but use NumberConstant and proper NumberShiftLeft
operators instead.

R=jarin@chromium.org
BUG=chromium:630951
==========

to

==========
[turbofan] Avoid introducing machine operators during typed lowering.

Introducing machine operators early causes trouble for the typing,
truncation analysis and representation selection, so we should rather
stick to simplified operators instead. Now there's only the for-in case
left, which is not clear how we can handle this in a better way.

Drive-by-fix: Also don't introduce Int32Constant and Word32Shl in
JSTypedLowering, but use NumberConstant and proper NumberShiftLeft
operators instead.

R=jarin@chromium.org
BUG=chromium:630951

Committed: https://crrev.com/5bed1516c8218b2607cbbe9e1f96c8f83376da41
Cr-Commit-Position: refs/heads/master@{#38008}
==========

[commit-bot: I haz the power, 2016-07-25 10:38:09]

Patchset 1 (id:??) landed as
https://crrev.com/5bed1516c8218b2607cbbe9e1f96c8f83376da41
Cr-Commit-Position: refs/heads/master@{#38008}