R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/1307203005

Cr-Commit-Position: refs/heads/master@{#30565}

While we may have consecutive deferred blocks, they may be entered
from other blocks that are not predecessors of the first block. Same
for the last block and exiting. So the total set of live ranges within
the given set of blocks is the union of the individual in and out live
sets.

This is a performance bug, not a functional bug.

BUG=

Review URL: https://codereview.chromium.org/1322703003

Cr-Commit-Position: refs/heads/master@{#30564}

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

Review URL: https://codereview.chromium.org/1325173003

Cr-Commit-Position: refs/heads/master@{#30563}

Follow up on discussion of https://codereview.chromium.org/1310503006/

BUG=
LOG=N

Review URL: https://codereview.chromium.org/1313953008

Cr-Commit-Position: refs/heads/master@{#30562}

Fixed ranges don't have operands assigned, for example.

BUG=

Review URL: https://codereview.chromium.org/1326643006

Cr-Commit-Position: refs/heads/master@{#30561}

{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}

BUG=

Review URL: https://codereview.chromium.org/1312893010

Cr-Commit-Position: refs/heads/master@{#30559}

Revert of Automatically download gold plugin for cfi builds. (patchset #1 id:1 of https://codereview.chromium.org/1303183005/ )

Reason for revert:
Breaks windows.

Original issue's description:
> Automatically download gold plugin for cfi builds.
>
> BUG=chromium:515782
> LOG=n
> NOTRY=true
>
> Committed: https://crrev.com/c8dbd2c477c47a34593a0e7deee55915425b4ac2
> Cr-Commit-Position: refs/heads/master@{#30556}

TBR=bmeurer@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=chromium:515782

Review URL: https://codereview.chromium.org/1329653004

Cr-Commit-Position: refs/heads/master@{#30558}

Use a single JSIteratorResult type for all implementation provided
iterator results (i.e. the String, Array and collection iterators,
and also for generators).  This removes one source of unnecessary
polymorphism in for-of loops.  It is accomplished by a new intrinsic
%_CreateIterResultObject() that should be used to create iterator
result objects from JavaScript builtins (there's a matching factory
method for C++ code).

Also restructure the %StringIteratorPrototype%.next() and
%ArrayIteratorPrototype%.next() functions to be a bit more friendly
to optimizing compilers.

R=ishell@chromium.org

Review URL: https://codereview.chromium.org/1302173007

Cr-Commit-Position: refs/heads/master@{#30557}

BUG=chromium:515782
LOG=n
NOTRY=true

Review URL: https://codereview.chromium.org/1303183005

Cr-Commit-Position: refs/heads/master@{#30556}

This is to support WebAssembly 64-bit ints in the short term, since it
currently uses CheckedLoad/CheckedStore for accesses to the memory. In the
long run, we'll change this to be explicit bounds checks that throw on out
of bounds.

R=bmeurer@chromium.org
BUG=

Review URL: https://codereview.chromium.org/1310323006

Cr-Commit-Position: refs/heads/master@{#30555}

R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/1318863004

Cr-Commit-Position: refs/heads/master@{#30554}

R=bmeurer@chromium.org

Review URL: https://codereview.chromium.org/1327523003

Cr-Commit-Position: refs/heads/master@{#30553}

This turns the has_instance_call_handler bit on Map into an is_callable
bit, that matches the spec definition of IsCallable (i.e. instances have
[[Call]] internal methods).

Also fix the typeof operator to properly say "function" for everything
that is callable.

Also remove the (unused) premature %_GetPrototype optimization from
Crankshaft, which just complicated the Map bit swap.

R=mstarzinger@chromium.org, rossberg@chromium.org, yangguo@chromium.org
CQ_INCLUDE_TRYBOTS=tryserver.v8:v8_linux_layout_dbg

Review URL: https://codereview.chromium.org/1316933002

Cr-Commit-Position: refs/heads/master@{#30552}

Rolling v8/tools/clang to 91e7a78800b5849e27e098daa42e6ae8650ad322

TBR=machenbach@chromium.org,vogelheim@chromium.org,hablich@chromium.org

Review URL: https://codereview.chromium.org/1316403006

Cr-Commit-Position: refs/heads/master@{#30551}

Kills the kRestParameter bailout/disabled optimization, and fixes
lazily parsed arrow functions with rest parameters.

Supercedes https://crrev.com/1235153006/

BUG=chromium:508074, v8:2160, v8:2700
LOG=N
R=rossberg@chromium.org, adamk@chromium.org, wingo@igalia.com

Review URL: https://codereview.chromium.org/1272673003

Cr-Commit-Position: refs/heads/master@{#30550}

Add methods for converting parameter index to a register and vice-versa.

Move Register class into bytecodes.h.

Update Bytecodes::Decode to pretty print parameters.

BUG=v8:4280
LOG=NO

Review URL: https://codereview.chromium.org/1325983002

Cr-Commit-Position: refs/heads/master@{#30549}

This is a follow-up to a previous change and moved object statistics
tracking into its own component. It is no longer intertwinded with the
normal marking logic, but separated out into ObjectStatsVisitor.

R=mlippautz@chromium.org

Review URL: https://codereview.chromium.org/1310953008

Cr-Commit-Position: refs/heads/master@{#30548}

Note that this is only pulling out the bookkeeping side of things, the
marking visitor that actually records the statistics should also move
into the ObjectStats class. That will be done as a follow-up.

R=mlippautz@chromium.org

Review URL: https://codereview.chromium.org/1326793002

Cr-Commit-Position: refs/heads/master@{#30547}

- Use the new ElementsAccessor methods
- improve test coverage

BUG=

Review URL: https://codereview.chromium.org/1317053006

Cr-Commit-Position: refs/heads/master@{#30546}

Port c29a4061

R=mvstanton@chromium.org, joransiu@ca.ibm.com, jyan@ca.ibm.com, michael_dawson@ca.ibm.com, dstence@us.ibm.com
BUG=

Review URL: https://codereview.chromium.org/1325103003

Cr-Commit-Position: refs/heads/master@{#30545}

Code::WipeOutHeader now nulls out the next code link to avoid
embedding that address in snapshot.

BUG=
LOG=NO

Review URL: https://codereview.chromium.org/1310503006

Cr-Commit-Position: refs/heads/master@{#30544}

Adds support for property load operations via Load/KeyedLoad ICs. Adds the
following bytecodes:
 - LoadIC
 - KeyedLoadIC
Also adds support to the interpreter assembler for loading the type feedback
vector from the function on the stack, and calling ICs.

BUG=v8:4280
LOG=N

Review URL: https://codereview.chromium.org/1309843007

Cr-Commit-Position: refs/heads/master@{#30543}

BUG=

Review URL: https://codereview.chromium.org/1314503003

Cr-Commit-Position: refs/heads/master@{#30542}

Prerequisite for sealing strong class instances.

Depends on https://codereview.chromium.org/1314203002/

BUG=v8:3956
LOG=N

Review URL: https://codereview.chromium.org/1316333002

Cr-Commit-Position: refs/heads/master@{#30541}

BUG=

Review URL: https://codereview.chromium.org/1313023003

Cr-Commit-Position: refs/heads/master@{#30540}

Remove intersection from the `std::map`s representing current live
ArrayBuffers. While being simpler to understand, it poses significant
performance issue for the active ArrayBuffer users (like node.js).

Store buffers separately, and process them together during mark-sweep
phase.

BUG=
R=mlippautz@chromium.org

Review URL: https://codereview.chromium.org/1326613002

Cr-Commit-Position: refs/heads/master@{#30539}

BUG=chromium:523307
LOG=N

Review URL: https://codereview.chromium.org/1304923003

Cr-Commit-Position: refs/heads/master@{#30538}

Revert of [turbofan] Greedy: using hints (patchset #2 id:60001 of https://codereview.chromium.org/1329493004/ )

Reason for revert:
http://build.chromium.org/p/client.v8/builders/V8%20Linux%20-%20debug%20-%20greedy%20allocator/builds/1338

Original issue's description:
> [turbofan] Greedy: using hints
>
> This is a rudimentary introduction of hints. Primarily this helps with
> allocating on the same register variables are defined (from instructions)
> For dealing with phis, we need to introduce groups, in a subsequent
> CL.
>
> From the last CL (memory ops heuristics), this CL improves some
> benchmarks - notably Life (11.94%) in Emscripten x64, and Memops
> (Emscripten), 24% on x86; notable regressions: Memops in
> AreWeFastYet (-14%, x64) and Corrections -25% on x86.
>
> BUG=
>
> Committed: https://crrev.com/038f5eaf3bd6796ed6b7519de83c21d4e1f54850
> Cr-Commit-Position: refs/heads/master@{#30534}

TBR=jarin@chromium.org,bmeurer@chromium.org,mtrofin@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=

Review URL: https://codereview.chromium.org/1324763005

Cr-Commit-Position: refs/heads/master@{#30537}

This is causing build breaks for Node.js w/ V8 4.6.

Map::kInObjectPropertiesOffset was been replaced by
kInObjectPropertiesOrConstructorFunctionIndexOffset in
https://codereview.chromium.org/1276533003. This is causing the post-mortem
debug information generation to fail.

R=bmeurer@chromium.org
BUG=

Review URL: https://codereview.chromium.org/1308113007

Cr-Commit-Position: refs/heads/master@{#30536}

The AlwaysAllocate scope make it impossible to enforce a DCHECK on the maximum
old generation sizes as e.g. large objects can still be allocated using this
scope. Returning false here results in OOM.

R=mstarzinger@chromium.org
BUG=chromium:525448
LOG=N

Review URL: https://codereview.chromium.org/1316183004

Cr-Commit-Position: refs/heads/master@{#30535}

This is a rudimentary introduction of hints. Primarily this helps with
allocating on the same register variables are defined (from instructions)
For dealing with phis, we need to introduce groups, in a subsequent
CL.

From the last CL (memory ops heuristics), this CL improves some
benchmarks - notably Life (11.94%) in Emscripten x64, and Memops
(Emscripten), 24% on x86; notable regressions: Memops in
AreWeFastYet (-14%, x64) and Corrections -25% on x86.

BUG=

Review URL: https://codereview.chromium.org/1329493004

Cr-Commit-Position: refs/heads/master@{#30534}

The spec says that the "this value" has to be an Object.

R=jarin@chromium.org

Review URL: https://codereview.chromium.org/1325023003

Cr-Commit-Position: refs/heads/master@{#30533}

Repeat the same signatures for future refactoring

BUG=

Review URL: https://codereview.chromium.org/1302413006

Cr-Commit-Position: refs/heads/master@{#30532}

Fixes all bad casts associated with operands of call and select operators
in the test suite.

Cleanup for cfi_vptr=1; see https://www.chromium.org/developers/testing/control-flow-integrity

BUG=chromium:457523
R=bmeurer@chromium.org
LOG=N

Review URL: https://codereview.chromium.org/1329643002

Cr-Commit-Position: refs/heads/master@{#30531}

Rolling v8/build/gyp to 121d89dfcd4f6ebe1c89524b3f9ca11ddd437e77

Rolling v8/tools/clang to a09a5fee59be457e0d7213d86f8bac72d232860d

TBR=machenbach@chromium.org,vogelheim@chromium.org,hablich@chromium.org

Review URL: https://codereview.chromium.org/1322933004

Cr-Commit-Position: refs/heads/master@{#30530}

We're moving away from using CompilationInfo as a big bag o' stuff.
Passing in just what we need to several AstVisitors to avoid
increasing the problem.

BUG=None
TEST=trybots
R=titzer@chromium.org
LOG=N

Review URL: https://codereview.chromium.org/1318823010

Cr-Commit-Position: refs/heads/master@{#30529}

The arm64 build is missing a few recently-added files.

Compiling with msan requires that v8 be compiled in arm64 mode. Hook this up.

Review URL: https://codereview.chromium.org/1316233005

Cr-Commit-Position: refs/heads/master@{#30528}

Disable the polyfill in simd.js tests as the functions for Phase 1 have been implemented.

BUG=v8:4124
LOG=N

R=bbudge@chromium.org, bmeurer@chromium.org, littledan@chromium.org

Committed: https://crrev.com/749ba3a13558cb018a2ec783e5dfb56d2f8528d8
Cr-Commit-Position: refs/heads/master@{#30452}

Review URL: https://codereview.chromium.org/1305923005

Cr-Commit-Position: refs/heads/master@{#30527}

Move BackingStore specific implementation from builtins.cc tp ElementsAccessor

BUG=

Review URL: https://codereview.chromium.org/1322803002

Cr-Commit-Position: refs/heads/master@{#30526}