[heap] Properly propagate allocated space during new space evacuaton in MC

[heap] Properly propagate allocated space during new space evacuaton in MC

New space evaucation in MC supports, similar to scavenges, fall back allocation
in old space.

For new space evacuation we support stick and non-sticky modes for fallback. The
sticky mode essentially removes the capability to allocate in new space while
the non-sticky mode only falls back for a single allocation.

We use the non-sticky mode for allocations that are too large for a LAB but
should still go in new space. When such an allocation fails in new space, we
allocate in old space in non-sticky mode as we would still like to reuse the
remainder memory in new space. However, in such a case we fail to properly
report the space allocated in resulting in a missed recorded slot.

BUG=chromium:641270
R=ulan@chromium.org

Committed: https://crrev.com/bb4974d1864502b99e2fd639b6c584031afd47cc
Cr-Commit-Position: refs/heads/master@{#38940}

[Michael Lippautz, 2016-08-26 11:54:30]

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

[commit-bot: I haz the power, 2016-08-26 11:54:34]

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

[Michael Lippautz, 2016-08-26 11:55:12]

ptal

as discussed: this is too fragile to test in the long run. manually verified
that it fixes the underlying issue.

[ulan, 2016-08-26 11:55:51]

LGTM, good catch!

[commit-bot: I haz the power, 2016-08-26 12:22:59]

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

[commit-bot: I haz the power, 2016-08-26 12:23:00]

Dry run: This issue passed the CQ dry run.

[Michael Lippautz, 2016-08-26 12:25:40]

The CQ bit was checked by mlippautz@chromium.org

[commit-bot: I haz the power, 2016-08-26 12:25:50]

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, 2016-08-26 12:27:17]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-08-26 12:27:35]

Description was changed from

==========
[heap] Properly propagate allocated space during new space evacuaton in MC

New space evaucation in MC supports, similar to scavenges, fall back allocation
in old space.

For new space evacuation we support stick and non-sticky modes for fallback. The
sticky mode essentially removes the capability to allocate in new space while
the non-sticky mode only falls back for a single allocation.

We use the non-sticky mode for allocations that are too large for a LAB but
should still go in new space. When such an allocation fails in new space, we
allocate in old space in non-sticky mode as we would still like to reuse the
remainder memory in new space. However, in such a case we fail to properly
report the space allocated in resulting in a missed recorded slot.

BUG=chromium:641270
R=ulan@chromium.org
==========

to

==========
[heap] Properly propagate allocated space during new space evacuaton in MC

New space evaucation in MC supports, similar to scavenges, fall back allocation
in old space.

For new space evacuation we support stick and non-sticky modes for fallback. The
sticky mode essentially removes the capability to allocate in new space while
the non-sticky mode only falls back for a single allocation.

We use the non-sticky mode for allocations that are too large for a LAB but
should still go in new space. When such an allocation fails in new space, we
allocate in old space in non-sticky mode as we would still like to reuse the
remainder memory in new space. However, in such a case we fail to properly
report the space allocated in resulting in a missed recorded slot.

BUG=chromium:641270
R=ulan@chromium.org

Committed: https://crrev.com/bb4974d1864502b99e2fd639b6c584031afd47cc
Cr-Commit-Position: refs/heads/master@{#38940}
==========

[commit-bot: I haz the power, 2016-08-26 12:27:36]

Patchset 1 (id:??) landed as
https://crrev.com/bb4974d1864502b99e2fd639b6c584031afd47cc
Cr-Commit-Position: refs/heads/master@{#38940}