R=mtrofin@chromium.org,verwaest@chromium.org
BUG=

Review-Url: https://codereview.chromium.org/2662883003
Cr-Commit-Position: refs/heads/master@{#42787}

BUG=v8:5614

Review-Url: https://codereview.chromium.org/2496913002
Cr-Commit-Position: refs/heads/master@{#40931}

BUG=chromium:648568

Review-Url: https://codereview.chromium.org/2428493003
Cr-Commit-Position: refs/heads/master@{#40393}

This CL also introduces a NoBarrierAtomicValue with NoBarrier accessors.

BUG=chromium:648568

Review-Url: https://codereview.chromium.org/2408233004
Cr-Commit-Position: refs/heads/master@{#40213}

Here we only change the type of the slot set fields to atomic values and use CAS to change the state. There is no change in behavior or semantics of the slot set.

BUG=chromium:648568

Review-Url: https://codereview.chromium.org/2353553003
Cr-Commit-Position: refs/heads/master@{#39557}

AtomicNumber should make dealing with atomic counters easier. This is not the
case with size_t, as we cannot properly use the Increment() method for negative
numbers.

With this CL we can use AtomicNumber<size_t> and have proper decrements.

R=jochen@chromium.org

Review-Url: https://codereview.chromium.org/2215693002
Cr-Commit-Position: refs/heads/master@{#38407}

BUG=v8:5215
R=marja@chromium.org,vogelheim@chromium.org

Review-Url: https://codereview.chromium.org/2190333002
Cr-Commit-Position: refs/heads/master@{#38170}

atomic-utils.h only uses functionality from base/, and also by moving it into
base/, code outside of v8_base can benefit from it.

BUG=v8:4991
LOG=n

Review-Url: https://codereview.chromium.org/1954603002
Cr-Commit-Position: refs/heads/master@{#36114}

Replaces the UnboundedQueue (SP/SC) with LockedQueue (MP/MC). This is necessary
as we can have multiple tasks (on multiple platform threads) reporting code move
events.

Note that the sampling queue is not affected by this change.

BUG=chromium:524425
LOG=N

Review URL: https://codereview.chromium.org/1457483002

Cr-Commit-Position: refs/heads/master@{#32086}

Adds concurrency support for:
- MemoryChunk: Fragmentation counters
- MemoryChunk: High-water mark
- MemoryAllocator: Lowest and highest ever allocated addresses, size, and
  capacity

R=hpayer@chromium.org
BUG=chromium:524425
LOG=N

This reverts commit 0db34dbe.

BUG=

Review URL: https://codereview.chromium.org/1346973002

Cr-Commit-Position: refs/heads/master@{#30760}

Revert of [heap] Concurrency support for heap book-keeping info (patchset #4 id:60001 of https://codereview.chromium.org/1340923004/ )

Reason for revert:
crashing: http://build.chromium.org/p/client.v8/builders/V8%20Win32%20-%20debug%20-%203/builds/4716

Original issue's description:
> [heap] Concurrency support for heap book-keeping info.
>
> Adds concurrency support for:
> - MemoryChunk: Fragmentation counters
> - MemoryChunk: High-water mark
> - MemoryAllocator: Lowest and highest ever allocated addresses, size, and
>   capacity
>
> R=hpayer@chromium.org
> BUG=chromium:524425
> LOG=N
>
> Committed: https://crrev.com/63190721cda4966e01d71e92a730ce48ea789fbc
> Cr-Commit-Position: refs/heads/master@{#30749}

TBR=hpayer@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=chromium:524425

Review URL: https://codereview.chromium.org/1340323002

Cr-Commit-Position: refs/heads/master@{#30752}

Loads get an acquire, store/cas a release. Increment gets a full barrier.

R=hpayer@chromium.org
BUG=

Review URL: https://codereview.chromium.org/1343883004

Cr-Commit-Position: refs/heads/master@{#30751}

Adds concurrency support for:
- MemoryChunk: Fragmentation counters
- MemoryChunk: High-water mark
- MemoryAllocator: Lowest and highest ever allocated addresses, size, and
  capacity

R=hpayer@chromium.org
BUG=chromium:524425
LOG=N

Review URL: https://codereview.chromium.org/1340923004

Cr-Commit-Position: refs/heads/master@{#30749}

BUG=

Review URL: https://codereview.chromium.org/1324153003

Cr-Commit-Position: refs/heads/master@{#30589}

{AtomicValue}: A simple integer value that can be atomically
read/set/incremented.

{AtomicEnumSet}: Similar to EnumSet this set basically represents an atomic
bitfield based on enums. Atomic operations guarantee that setting one bit does
not race with setting other bits.

{AtomicEnumFlag}: A flag that is based on an enum that can be read and
(attempted to be) changed atomically.

BUG=chromium:524425
LOG=N

Review URL: https://codereview.chromium.org/1310993004

Cr-Commit-Position: refs/heads/master@{#30560}